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1 | 54936004 | bellard | /*
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2 | fd6ce8f6 | bellard | * virtual page mapping and translated block handling
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3 | 5fafdf24 | ths | *
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4 | 54936004 | bellard | * Copyright (c) 2003 Fabrice Bellard
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5 | 54936004 | bellard | *
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6 | 54936004 | bellard | * This library is free software; you can redistribute it and/or
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7 | 54936004 | bellard | * modify it under the terms of the GNU Lesser General Public
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8 | 54936004 | bellard | * License as published by the Free Software Foundation; either
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9 | 54936004 | bellard | * version 2 of the License, or (at your option) any later version.
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10 | 54936004 | bellard | *
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11 | 54936004 | bellard | * This library is distributed in the hope that it will be useful,
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12 | 54936004 | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | 54936004 | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | 54936004 | bellard | * Lesser General Public License for more details.
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15 | 54936004 | bellard | *
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16 | 54936004 | bellard | * You should have received a copy of the GNU Lesser General Public
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17 | 8167ee88 | Blue Swirl | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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18 | 54936004 | bellard | */
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19 | 67b915a5 | bellard | #include "config.h" |
20 | d5a8f07c | bellard | #ifdef _WIN32
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21 | d5a8f07c | bellard | #include <windows.h> |
22 | d5a8f07c | bellard | #else
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23 | a98d49b1 | bellard | #include <sys/types.h> |
24 | d5a8f07c | bellard | #include <sys/mman.h> |
25 | d5a8f07c | bellard | #endif
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26 | 54936004 | bellard | |
27 | 055403b2 | Stefan Weil | #include "qemu-common.h" |
28 | 6180a181 | bellard | #include "cpu.h" |
29 | 6180a181 | bellard | #include "exec-all.h" |
30 | b67d9a52 | bellard | #include "tcg.h" |
31 | b3c7724c | pbrook | #include "hw/hw.h" |
32 | cc9e98cb | Alex Williamson | #include "hw/qdev.h" |
33 | 74576198 | aliguori | #include "osdep.h" |
34 | 7ba1e619 | aliguori | #include "kvm.h" |
35 | 432d268c | Jun Nakajima | #include "hw/xen.h" |
36 | 29e922b6 | Blue Swirl | #include "qemu-timer.h" |
37 | 53a5960a | pbrook | #if defined(CONFIG_USER_ONLY)
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38 | 53a5960a | pbrook | #include <qemu.h> |
39 | f01576f1 | Juergen Lock | #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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40 | f01576f1 | Juergen Lock | #include <sys/param.h> |
41 | f01576f1 | Juergen Lock | #if __FreeBSD_version >= 700104 |
42 | f01576f1 | Juergen Lock | #define HAVE_KINFO_GETVMMAP
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43 | f01576f1 | Juergen Lock | #define sigqueue sigqueue_freebsd /* avoid redefinition */ |
44 | f01576f1 | Juergen Lock | #include <sys/time.h> |
45 | f01576f1 | Juergen Lock | #include <sys/proc.h> |
46 | f01576f1 | Juergen Lock | #include <machine/profile.h> |
47 | f01576f1 | Juergen Lock | #define _KERNEL
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48 | f01576f1 | Juergen Lock | #include <sys/user.h> |
49 | f01576f1 | Juergen Lock | #undef _KERNEL
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50 | f01576f1 | Juergen Lock | #undef sigqueue
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51 | f01576f1 | Juergen Lock | #include <libutil.h> |
52 | f01576f1 | Juergen Lock | #endif
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53 | f01576f1 | Juergen Lock | #endif
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54 | 432d268c | Jun Nakajima | #else /* !CONFIG_USER_ONLY */ |
55 | 432d268c | Jun Nakajima | #include "xen-mapcache.h" |
56 | 53a5960a | pbrook | #endif
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57 | 54936004 | bellard | |
58 | fd6ce8f6 | bellard | //#define DEBUG_TB_INVALIDATE
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59 | 66e85a21 | bellard | //#define DEBUG_FLUSH
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60 | 9fa3e853 | bellard | //#define DEBUG_TLB
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61 | 67d3b957 | pbrook | //#define DEBUG_UNASSIGNED
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62 | fd6ce8f6 | bellard | |
63 | fd6ce8f6 | bellard | /* make various TB consistency checks */
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64 | 5fafdf24 | ths | //#define DEBUG_TB_CHECK
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65 | 5fafdf24 | ths | //#define DEBUG_TLB_CHECK
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66 | fd6ce8f6 | bellard | |
67 | 1196be37 | ths | //#define DEBUG_IOPORT
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68 | db7b5426 | blueswir1 | //#define DEBUG_SUBPAGE
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69 | 1196be37 | ths | |
70 | 99773bd4 | pbrook | #if !defined(CONFIG_USER_ONLY)
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71 | 99773bd4 | pbrook | /* TB consistency checks only implemented for usermode emulation. */
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72 | 99773bd4 | pbrook | #undef DEBUG_TB_CHECK
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73 | 99773bd4 | pbrook | #endif
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74 | 99773bd4 | pbrook | |
75 | 9fa3e853 | bellard | #define SMC_BITMAP_USE_THRESHOLD 10 |
76 | 9fa3e853 | bellard | |
77 | bdaf78e0 | blueswir1 | static TranslationBlock *tbs;
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78 | 24ab68ac | Stefan Weil | static int code_gen_max_blocks; |
79 | 9fa3e853 | bellard | TranslationBlock *tb_phys_hash[CODE_GEN_PHYS_HASH_SIZE]; |
80 | bdaf78e0 | blueswir1 | static int nb_tbs; |
81 | eb51d102 | bellard | /* any access to the tbs or the page table must use this lock */
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82 | c227f099 | Anthony Liguori | spinlock_t tb_lock = SPIN_LOCK_UNLOCKED; |
83 | fd6ce8f6 | bellard | |
84 | 141ac468 | blueswir1 | #if defined(__arm__) || defined(__sparc_v9__)
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85 | 141ac468 | blueswir1 | /* The prologue must be reachable with a direct jump. ARM and Sparc64
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86 | 141ac468 | blueswir1 | have limited branch ranges (possibly also PPC) so place it in a
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87 | d03d860b | blueswir1 | section close to code segment. */
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88 | d03d860b | blueswir1 | #define code_gen_section \
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89 | d03d860b | blueswir1 | __attribute__((__section__(".gen_code"))) \
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90 | d03d860b | blueswir1 | __attribute__((aligned (32)))
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91 | f8e2af11 | Stefan Weil | #elif defined(_WIN32)
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92 | f8e2af11 | Stefan Weil | /* Maximum alignment for Win32 is 16. */
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93 | f8e2af11 | Stefan Weil | #define code_gen_section \
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94 | f8e2af11 | Stefan Weil | __attribute__((aligned (16)))
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95 | d03d860b | blueswir1 | #else
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96 | d03d860b | blueswir1 | #define code_gen_section \
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97 | d03d860b | blueswir1 | __attribute__((aligned (32)))
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98 | d03d860b | blueswir1 | #endif
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99 | d03d860b | blueswir1 | |
100 | d03d860b | blueswir1 | uint8_t code_gen_prologue[1024] code_gen_section;
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101 | bdaf78e0 | blueswir1 | static uint8_t *code_gen_buffer;
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102 | bdaf78e0 | blueswir1 | static unsigned long code_gen_buffer_size; |
103 | 26a5f13b | bellard | /* threshold to flush the translated code buffer */
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104 | bdaf78e0 | blueswir1 | static unsigned long code_gen_buffer_max_size; |
105 | 24ab68ac | Stefan Weil | static uint8_t *code_gen_ptr;
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106 | fd6ce8f6 | bellard | |
107 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
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108 | 9fa3e853 | bellard | int phys_ram_fd;
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109 | 74576198 | aliguori | static int in_migration; |
110 | 94a6b54f | pbrook | |
111 | f471a17e | Alex Williamson | RAMList ram_list = { .blocks = QLIST_HEAD_INITIALIZER(ram_list) }; |
112 | e2eef170 | pbrook | #endif
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113 | 9fa3e853 | bellard | |
114 | 6a00d601 | bellard | CPUState *first_cpu; |
115 | 6a00d601 | bellard | /* current CPU in the current thread. It is only valid inside
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116 | 6a00d601 | bellard | cpu_exec() */
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117 | 5fafdf24 | ths | CPUState *cpu_single_env; |
118 | 2e70f6ef | pbrook | /* 0 = Do not count executed instructions.
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119 | bf20dc07 | ths | 1 = Precise instruction counting.
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120 | 2e70f6ef | pbrook | 2 = Adaptive rate instruction counting. */
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121 | 2e70f6ef | pbrook | int use_icount = 0; |
122 | 2e70f6ef | pbrook | /* Current instruction counter. While executing translated code this may
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123 | 2e70f6ef | pbrook | include some instructions that have not yet been executed. */
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124 | 2e70f6ef | pbrook | int64_t qemu_icount; |
125 | 6a00d601 | bellard | |
126 | 54936004 | bellard | typedef struct PageDesc { |
127 | 92e873b9 | bellard | /* list of TBs intersecting this ram page */
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128 | fd6ce8f6 | bellard | TranslationBlock *first_tb; |
129 | 9fa3e853 | bellard | /* in order to optimize self modifying code, we count the number
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130 | 9fa3e853 | bellard | of lookups we do to a given page to use a bitmap */
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131 | 9fa3e853 | bellard | unsigned int code_write_count; |
132 | 9fa3e853 | bellard | uint8_t *code_bitmap; |
133 | 9fa3e853 | bellard | #if defined(CONFIG_USER_ONLY)
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134 | 9fa3e853 | bellard | unsigned long flags; |
135 | 9fa3e853 | bellard | #endif
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136 | 54936004 | bellard | } PageDesc; |
137 | 54936004 | bellard | |
138 | 41c1b1c9 | Paul Brook | /* In system mode we want L1_MAP to be based on ram offsets,
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139 | 5cd2c5b6 | Richard Henderson | while in user mode we want it to be based on virtual addresses. */
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140 | 5cd2c5b6 | Richard Henderson | #if !defined(CONFIG_USER_ONLY)
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141 | 41c1b1c9 | Paul Brook | #if HOST_LONG_BITS < TARGET_PHYS_ADDR_SPACE_BITS
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142 | 41c1b1c9 | Paul Brook | # define L1_MAP_ADDR_SPACE_BITS HOST_LONG_BITS
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143 | 41c1b1c9 | Paul Brook | #else
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144 | 5cd2c5b6 | Richard Henderson | # define L1_MAP_ADDR_SPACE_BITS TARGET_PHYS_ADDR_SPACE_BITS
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145 | 41c1b1c9 | Paul Brook | #endif
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146 | bedb69ea | j_mayer | #else
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147 | 5cd2c5b6 | Richard Henderson | # define L1_MAP_ADDR_SPACE_BITS TARGET_VIRT_ADDR_SPACE_BITS
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148 | bedb69ea | j_mayer | #endif
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149 | 54936004 | bellard | |
150 | 5cd2c5b6 | Richard Henderson | /* Size of the L2 (and L3, etc) page tables. */
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151 | 5cd2c5b6 | Richard Henderson | #define L2_BITS 10 |
152 | 54936004 | bellard | #define L2_SIZE (1 << L2_BITS) |
153 | 54936004 | bellard | |
154 | 5cd2c5b6 | Richard Henderson | /* The bits remaining after N lower levels of page tables. */
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155 | 5cd2c5b6 | Richard Henderson | #define P_L1_BITS_REM \
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156 | 5cd2c5b6 | Richard Henderson | ((TARGET_PHYS_ADDR_SPACE_BITS - TARGET_PAGE_BITS) % L2_BITS) |
157 | 5cd2c5b6 | Richard Henderson | #define V_L1_BITS_REM \
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158 | 5cd2c5b6 | Richard Henderson | ((L1_MAP_ADDR_SPACE_BITS - TARGET_PAGE_BITS) % L2_BITS) |
159 | 5cd2c5b6 | Richard Henderson | |
160 | 5cd2c5b6 | Richard Henderson | /* Size of the L1 page table. Avoid silly small sizes. */
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161 | 5cd2c5b6 | Richard Henderson | #if P_L1_BITS_REM < 4 |
162 | 5cd2c5b6 | Richard Henderson | #define P_L1_BITS (P_L1_BITS_REM + L2_BITS)
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163 | 5cd2c5b6 | Richard Henderson | #else
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164 | 5cd2c5b6 | Richard Henderson | #define P_L1_BITS P_L1_BITS_REM
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165 | 5cd2c5b6 | Richard Henderson | #endif
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166 | 5cd2c5b6 | Richard Henderson | |
167 | 5cd2c5b6 | Richard Henderson | #if V_L1_BITS_REM < 4 |
168 | 5cd2c5b6 | Richard Henderson | #define V_L1_BITS (V_L1_BITS_REM + L2_BITS)
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169 | 5cd2c5b6 | Richard Henderson | #else
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170 | 5cd2c5b6 | Richard Henderson | #define V_L1_BITS V_L1_BITS_REM
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171 | 5cd2c5b6 | Richard Henderson | #endif
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172 | 5cd2c5b6 | Richard Henderson | |
173 | 5cd2c5b6 | Richard Henderson | #define P_L1_SIZE ((target_phys_addr_t)1 << P_L1_BITS) |
174 | 5cd2c5b6 | Richard Henderson | #define V_L1_SIZE ((target_ulong)1 << V_L1_BITS) |
175 | 5cd2c5b6 | Richard Henderson | |
176 | 5cd2c5b6 | Richard Henderson | #define P_L1_SHIFT (TARGET_PHYS_ADDR_SPACE_BITS - TARGET_PAGE_BITS - P_L1_BITS)
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177 | 5cd2c5b6 | Richard Henderson | #define V_L1_SHIFT (L1_MAP_ADDR_SPACE_BITS - TARGET_PAGE_BITS - V_L1_BITS)
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178 | 5cd2c5b6 | Richard Henderson | |
179 | 83fb7adf | bellard | unsigned long qemu_real_host_page_size; |
180 | 83fb7adf | bellard | unsigned long qemu_host_page_bits; |
181 | 83fb7adf | bellard | unsigned long qemu_host_page_size; |
182 | 83fb7adf | bellard | unsigned long qemu_host_page_mask; |
183 | 54936004 | bellard | |
184 | 5cd2c5b6 | Richard Henderson | /* This is a multi-level map on the virtual address space.
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185 | 5cd2c5b6 | Richard Henderson | The bottom level has pointers to PageDesc. */
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186 | 5cd2c5b6 | Richard Henderson | static void *l1_map[V_L1_SIZE]; |
187 | 54936004 | bellard | |
188 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
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189 | 41c1b1c9 | Paul Brook | typedef struct PhysPageDesc { |
190 | 41c1b1c9 | Paul Brook | /* offset in host memory of the page + io_index in the low bits */
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191 | 41c1b1c9 | Paul Brook | ram_addr_t phys_offset; |
192 | 41c1b1c9 | Paul Brook | ram_addr_t region_offset; |
193 | 41c1b1c9 | Paul Brook | } PhysPageDesc; |
194 | 41c1b1c9 | Paul Brook | |
195 | 5cd2c5b6 | Richard Henderson | /* This is a multi-level map on the physical address space.
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196 | 5cd2c5b6 | Richard Henderson | The bottom level has pointers to PhysPageDesc. */
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197 | 5cd2c5b6 | Richard Henderson | static void *l1_phys_map[P_L1_SIZE]; |
198 | 6d9a1304 | Paul Brook | |
199 | e2eef170 | pbrook | static void io_mem_init(void); |
200 | e2eef170 | pbrook | |
201 | 33417e70 | bellard | /* io memory support */
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202 | 33417e70 | bellard | CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4];
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203 | 33417e70 | bellard | CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4];
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204 | a4193c8a | bellard | void *io_mem_opaque[IO_MEM_NB_ENTRIES];
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205 | 511d2b14 | blueswir1 | static char io_mem_used[IO_MEM_NB_ENTRIES]; |
206 | 6658ffb8 | pbrook | static int io_mem_watch; |
207 | 6658ffb8 | pbrook | #endif
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208 | 33417e70 | bellard | |
209 | 34865134 | bellard | /* log support */
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210 | 1e8b27ca | Juha Riihimรคki | #ifdef WIN32
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211 | 1e8b27ca | Juha Riihimรคki | static const char *logfilename = "qemu.log"; |
212 | 1e8b27ca | Juha Riihimรคki | #else
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213 | d9b630fd | blueswir1 | static const char *logfilename = "/tmp/qemu.log"; |
214 | 1e8b27ca | Juha Riihimรคki | #endif
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215 | 34865134 | bellard | FILE *logfile; |
216 | 34865134 | bellard | int loglevel;
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217 | e735b91c | pbrook | static int log_append = 0; |
218 | 34865134 | bellard | |
219 | e3db7226 | bellard | /* statistics */
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220 | b3755a91 | Paul Brook | #if !defined(CONFIG_USER_ONLY)
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221 | e3db7226 | bellard | static int tlb_flush_count; |
222 | b3755a91 | Paul Brook | #endif
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223 | e3db7226 | bellard | static int tb_flush_count; |
224 | e3db7226 | bellard | static int tb_phys_invalidate_count; |
225 | e3db7226 | bellard | |
226 | 7cb69cae | bellard | #ifdef _WIN32
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227 | 7cb69cae | bellard | static void map_exec(void *addr, long size) |
228 | 7cb69cae | bellard | { |
229 | 7cb69cae | bellard | DWORD old_protect; |
230 | 7cb69cae | bellard | VirtualProtect(addr, size, |
231 | 7cb69cae | bellard | PAGE_EXECUTE_READWRITE, &old_protect); |
232 | 7cb69cae | bellard | |
233 | 7cb69cae | bellard | } |
234 | 7cb69cae | bellard | #else
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235 | 7cb69cae | bellard | static void map_exec(void *addr, long size) |
236 | 7cb69cae | bellard | { |
237 | 4369415f | bellard | unsigned long start, end, page_size; |
238 | 7cb69cae | bellard | |
239 | 4369415f | bellard | page_size = getpagesize(); |
240 | 7cb69cae | bellard | start = (unsigned long)addr; |
241 | 4369415f | bellard | start &= ~(page_size - 1);
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242 | 7cb69cae | bellard | |
243 | 7cb69cae | bellard | end = (unsigned long)addr + size; |
244 | 4369415f | bellard | end += page_size - 1;
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245 | 4369415f | bellard | end &= ~(page_size - 1);
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246 | 7cb69cae | bellard | |
247 | 7cb69cae | bellard | mprotect((void *)start, end - start,
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248 | 7cb69cae | bellard | PROT_READ | PROT_WRITE | PROT_EXEC); |
249 | 7cb69cae | bellard | } |
250 | 7cb69cae | bellard | #endif
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251 | 7cb69cae | bellard | |
252 | b346ff46 | bellard | static void page_init(void) |
253 | 54936004 | bellard | { |
254 | 83fb7adf | bellard | /* NOTE: we can always suppose that qemu_host_page_size >=
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255 | 54936004 | bellard | TARGET_PAGE_SIZE */
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256 | c2b48b69 | aliguori | #ifdef _WIN32
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257 | c2b48b69 | aliguori | { |
258 | c2b48b69 | aliguori | SYSTEM_INFO system_info; |
259 | c2b48b69 | aliguori | |
260 | c2b48b69 | aliguori | GetSystemInfo(&system_info); |
261 | c2b48b69 | aliguori | qemu_real_host_page_size = system_info.dwPageSize; |
262 | c2b48b69 | aliguori | } |
263 | c2b48b69 | aliguori | #else
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264 | c2b48b69 | aliguori | qemu_real_host_page_size = getpagesize(); |
265 | c2b48b69 | aliguori | #endif
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266 | 83fb7adf | bellard | if (qemu_host_page_size == 0) |
267 | 83fb7adf | bellard | qemu_host_page_size = qemu_real_host_page_size; |
268 | 83fb7adf | bellard | if (qemu_host_page_size < TARGET_PAGE_SIZE)
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269 | 83fb7adf | bellard | qemu_host_page_size = TARGET_PAGE_SIZE; |
270 | 83fb7adf | bellard | qemu_host_page_bits = 0;
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271 | 83fb7adf | bellard | while ((1 << qemu_host_page_bits) < qemu_host_page_size) |
272 | 83fb7adf | bellard | qemu_host_page_bits++; |
273 | 83fb7adf | bellard | qemu_host_page_mask = ~(qemu_host_page_size - 1);
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274 | 50a9569b | balrog | |
275 | 2e9a5713 | Paul Brook | #if defined(CONFIG_BSD) && defined(CONFIG_USER_ONLY)
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276 | 50a9569b | balrog | { |
277 | f01576f1 | Juergen Lock | #ifdef HAVE_KINFO_GETVMMAP
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278 | f01576f1 | Juergen Lock | struct kinfo_vmentry *freep;
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279 | f01576f1 | Juergen Lock | int i, cnt;
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280 | f01576f1 | Juergen Lock | |
281 | f01576f1 | Juergen Lock | freep = kinfo_getvmmap(getpid(), &cnt); |
282 | f01576f1 | Juergen Lock | if (freep) {
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283 | f01576f1 | Juergen Lock | mmap_lock(); |
284 | f01576f1 | Juergen Lock | for (i = 0; i < cnt; i++) { |
285 | f01576f1 | Juergen Lock | unsigned long startaddr, endaddr; |
286 | f01576f1 | Juergen Lock | |
287 | f01576f1 | Juergen Lock | startaddr = freep[i].kve_start; |
288 | f01576f1 | Juergen Lock | endaddr = freep[i].kve_end; |
289 | f01576f1 | Juergen Lock | if (h2g_valid(startaddr)) {
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290 | f01576f1 | Juergen Lock | startaddr = h2g(startaddr) & TARGET_PAGE_MASK; |
291 | f01576f1 | Juergen Lock | |
292 | f01576f1 | Juergen Lock | if (h2g_valid(endaddr)) {
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293 | f01576f1 | Juergen Lock | endaddr = h2g(endaddr); |
294 | fd436907 | Aurelien Jarno | page_set_flags(startaddr, endaddr, PAGE_RESERVED); |
295 | f01576f1 | Juergen Lock | } else {
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296 | f01576f1 | Juergen Lock | #if TARGET_ABI_BITS <= L1_MAP_ADDR_SPACE_BITS
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297 | f01576f1 | Juergen Lock | endaddr = ~0ul;
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298 | fd436907 | Aurelien Jarno | page_set_flags(startaddr, endaddr, PAGE_RESERVED); |
299 | f01576f1 | Juergen Lock | #endif
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300 | f01576f1 | Juergen Lock | } |
301 | f01576f1 | Juergen Lock | } |
302 | f01576f1 | Juergen Lock | } |
303 | f01576f1 | Juergen Lock | free(freep); |
304 | f01576f1 | Juergen Lock | mmap_unlock(); |
305 | f01576f1 | Juergen Lock | } |
306 | f01576f1 | Juergen Lock | #else
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307 | 50a9569b | balrog | FILE *f; |
308 | 50a9569b | balrog | |
309 | 0776590d | pbrook | last_brk = (unsigned long)sbrk(0); |
310 | 5cd2c5b6 | Richard Henderson | |
311 | fd436907 | Aurelien Jarno | f = fopen("/compat/linux/proc/self/maps", "r"); |
312 | 50a9569b | balrog | if (f) {
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313 | 5cd2c5b6 | Richard Henderson | mmap_lock(); |
314 | 5cd2c5b6 | Richard Henderson | |
315 | 50a9569b | balrog | do {
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316 | 5cd2c5b6 | Richard Henderson | unsigned long startaddr, endaddr; |
317 | 5cd2c5b6 | Richard Henderson | int n;
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318 | 5cd2c5b6 | Richard Henderson | |
319 | 5cd2c5b6 | Richard Henderson | n = fscanf (f, "%lx-%lx %*[^\n]\n", &startaddr, &endaddr);
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320 | 5cd2c5b6 | Richard Henderson | |
321 | 5cd2c5b6 | Richard Henderson | if (n == 2 && h2g_valid(startaddr)) { |
322 | 5cd2c5b6 | Richard Henderson | startaddr = h2g(startaddr) & TARGET_PAGE_MASK; |
323 | 5cd2c5b6 | Richard Henderson | |
324 | 5cd2c5b6 | Richard Henderson | if (h2g_valid(endaddr)) {
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325 | 5cd2c5b6 | Richard Henderson | endaddr = h2g(endaddr); |
326 | 5cd2c5b6 | Richard Henderson | } else {
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327 | 5cd2c5b6 | Richard Henderson | endaddr = ~0ul;
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328 | 5cd2c5b6 | Richard Henderson | } |
329 | 5cd2c5b6 | Richard Henderson | page_set_flags(startaddr, endaddr, PAGE_RESERVED); |
330 | 50a9569b | balrog | } |
331 | 50a9569b | balrog | } while (!feof(f));
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332 | 5cd2c5b6 | Richard Henderson | |
333 | 50a9569b | balrog | fclose(f); |
334 | 5cd2c5b6 | Richard Henderson | mmap_unlock(); |
335 | 50a9569b | balrog | } |
336 | f01576f1 | Juergen Lock | #endif
|
337 | 50a9569b | balrog | } |
338 | 50a9569b | balrog | #endif
|
339 | 54936004 | bellard | } |
340 | 54936004 | bellard | |
341 | 41c1b1c9 | Paul Brook | static PageDesc *page_find_alloc(tb_page_addr_t index, int alloc) |
342 | 54936004 | bellard | { |
343 | 41c1b1c9 | Paul Brook | PageDesc *pd; |
344 | 41c1b1c9 | Paul Brook | void **lp;
|
345 | 41c1b1c9 | Paul Brook | int i;
|
346 | 41c1b1c9 | Paul Brook | |
347 | 5cd2c5b6 | Richard Henderson | #if defined(CONFIG_USER_ONLY)
|
348 | 2e9a5713 | Paul Brook | /* We can't use qemu_malloc because it may recurse into a locked mutex. */
|
349 | 5cd2c5b6 | Richard Henderson | # define ALLOC(P, SIZE) \
|
350 | 5cd2c5b6 | Richard Henderson | do { \
|
351 | 5cd2c5b6 | Richard Henderson | P = mmap(NULL, SIZE, PROT_READ | PROT_WRITE, \
|
352 | 5cd2c5b6 | Richard Henderson | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); \ |
353 | 5cd2c5b6 | Richard Henderson | } while (0) |
354 | 5cd2c5b6 | Richard Henderson | #else
|
355 | 5cd2c5b6 | Richard Henderson | # define ALLOC(P, SIZE) \
|
356 | 5cd2c5b6 | Richard Henderson | do { P = qemu_mallocz(SIZE); } while (0) |
357 | 17e2377a | pbrook | #endif
|
358 | 434929bf | aliguori | |
359 | 5cd2c5b6 | Richard Henderson | /* Level 1. Always allocated. */
|
360 | 5cd2c5b6 | Richard Henderson | lp = l1_map + ((index >> V_L1_SHIFT) & (V_L1_SIZE - 1));
|
361 | 5cd2c5b6 | Richard Henderson | |
362 | 5cd2c5b6 | Richard Henderson | /* Level 2..N-1. */
|
363 | 5cd2c5b6 | Richard Henderson | for (i = V_L1_SHIFT / L2_BITS - 1; i > 0; i--) { |
364 | 5cd2c5b6 | Richard Henderson | void **p = *lp;
|
365 | 5cd2c5b6 | Richard Henderson | |
366 | 5cd2c5b6 | Richard Henderson | if (p == NULL) { |
367 | 5cd2c5b6 | Richard Henderson | if (!alloc) {
|
368 | 5cd2c5b6 | Richard Henderson | return NULL; |
369 | 5cd2c5b6 | Richard Henderson | } |
370 | 5cd2c5b6 | Richard Henderson | ALLOC(p, sizeof(void *) * L2_SIZE); |
371 | 5cd2c5b6 | Richard Henderson | *lp = p; |
372 | 17e2377a | pbrook | } |
373 | 5cd2c5b6 | Richard Henderson | |
374 | 5cd2c5b6 | Richard Henderson | lp = p + ((index >> (i * L2_BITS)) & (L2_SIZE - 1));
|
375 | 5cd2c5b6 | Richard Henderson | } |
376 | 5cd2c5b6 | Richard Henderson | |
377 | 5cd2c5b6 | Richard Henderson | pd = *lp; |
378 | 5cd2c5b6 | Richard Henderson | if (pd == NULL) { |
379 | 5cd2c5b6 | Richard Henderson | if (!alloc) {
|
380 | 5cd2c5b6 | Richard Henderson | return NULL; |
381 | 5cd2c5b6 | Richard Henderson | } |
382 | 5cd2c5b6 | Richard Henderson | ALLOC(pd, sizeof(PageDesc) * L2_SIZE);
|
383 | 5cd2c5b6 | Richard Henderson | *lp = pd; |
384 | 54936004 | bellard | } |
385 | 5cd2c5b6 | Richard Henderson | |
386 | 5cd2c5b6 | Richard Henderson | #undef ALLOC
|
387 | 5cd2c5b6 | Richard Henderson | |
388 | 5cd2c5b6 | Richard Henderson | return pd + (index & (L2_SIZE - 1)); |
389 | 54936004 | bellard | } |
390 | 54936004 | bellard | |
391 | 41c1b1c9 | Paul Brook | static inline PageDesc *page_find(tb_page_addr_t index) |
392 | 54936004 | bellard | { |
393 | 5cd2c5b6 | Richard Henderson | return page_find_alloc(index, 0); |
394 | fd6ce8f6 | bellard | } |
395 | fd6ce8f6 | bellard | |
396 | 6d9a1304 | Paul Brook | #if !defined(CONFIG_USER_ONLY)
|
397 | c227f099 | Anthony Liguori | static PhysPageDesc *phys_page_find_alloc(target_phys_addr_t index, int alloc) |
398 | 92e873b9 | bellard | { |
399 | e3f4e2a4 | pbrook | PhysPageDesc *pd; |
400 | 5cd2c5b6 | Richard Henderson | void **lp;
|
401 | 5cd2c5b6 | Richard Henderson | int i;
|
402 | 92e873b9 | bellard | |
403 | 5cd2c5b6 | Richard Henderson | /* Level 1. Always allocated. */
|
404 | 5cd2c5b6 | Richard Henderson | lp = l1_phys_map + ((index >> P_L1_SHIFT) & (P_L1_SIZE - 1));
|
405 | 108c49b8 | bellard | |
406 | 5cd2c5b6 | Richard Henderson | /* Level 2..N-1. */
|
407 | 5cd2c5b6 | Richard Henderson | for (i = P_L1_SHIFT / L2_BITS - 1; i > 0; i--) { |
408 | 5cd2c5b6 | Richard Henderson | void **p = *lp;
|
409 | 5cd2c5b6 | Richard Henderson | if (p == NULL) { |
410 | 5cd2c5b6 | Richard Henderson | if (!alloc) {
|
411 | 5cd2c5b6 | Richard Henderson | return NULL; |
412 | 5cd2c5b6 | Richard Henderson | } |
413 | 5cd2c5b6 | Richard Henderson | *lp = p = qemu_mallocz(sizeof(void *) * L2_SIZE); |
414 | 5cd2c5b6 | Richard Henderson | } |
415 | 5cd2c5b6 | Richard Henderson | lp = p + ((index >> (i * L2_BITS)) & (L2_SIZE - 1));
|
416 | 108c49b8 | bellard | } |
417 | 5cd2c5b6 | Richard Henderson | |
418 | e3f4e2a4 | pbrook | pd = *lp; |
419 | 5cd2c5b6 | Richard Henderson | if (pd == NULL) { |
420 | e3f4e2a4 | pbrook | int i;
|
421 | 5cd2c5b6 | Richard Henderson | |
422 | 5cd2c5b6 | Richard Henderson | if (!alloc) {
|
423 | 108c49b8 | bellard | return NULL; |
424 | 5cd2c5b6 | Richard Henderson | } |
425 | 5cd2c5b6 | Richard Henderson | |
426 | 5cd2c5b6 | Richard Henderson | *lp = pd = qemu_malloc(sizeof(PhysPageDesc) * L2_SIZE);
|
427 | 5cd2c5b6 | Richard Henderson | |
428 | 67c4d23c | pbrook | for (i = 0; i < L2_SIZE; i++) { |
429 | 5cd2c5b6 | Richard Henderson | pd[i].phys_offset = IO_MEM_UNASSIGNED; |
430 | 5cd2c5b6 | Richard Henderson | pd[i].region_offset = (index + i) << TARGET_PAGE_BITS; |
431 | 67c4d23c | pbrook | } |
432 | 92e873b9 | bellard | } |
433 | 5cd2c5b6 | Richard Henderson | |
434 | 5cd2c5b6 | Richard Henderson | return pd + (index & (L2_SIZE - 1)); |
435 | 92e873b9 | bellard | } |
436 | 92e873b9 | bellard | |
437 | c227f099 | Anthony Liguori | static inline PhysPageDesc *phys_page_find(target_phys_addr_t index) |
438 | 92e873b9 | bellard | { |
439 | 108c49b8 | bellard | return phys_page_find_alloc(index, 0); |
440 | 92e873b9 | bellard | } |
441 | 92e873b9 | bellard | |
442 | c227f099 | Anthony Liguori | static void tlb_protect_code(ram_addr_t ram_addr); |
443 | c227f099 | Anthony Liguori | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, |
444 | 3a7d929e | bellard | target_ulong vaddr); |
445 | c8a706fe | pbrook | #define mmap_lock() do { } while(0) |
446 | c8a706fe | pbrook | #define mmap_unlock() do { } while(0) |
447 | 9fa3e853 | bellard | #endif
|
448 | fd6ce8f6 | bellard | |
449 | 4369415f | bellard | #define DEFAULT_CODE_GEN_BUFFER_SIZE (32 * 1024 * 1024) |
450 | 4369415f | bellard | |
451 | 4369415f | bellard | #if defined(CONFIG_USER_ONLY)
|
452 | ccbb4d44 | Stuart Brady | /* Currently it is not recommended to allocate big chunks of data in
|
453 | 4369415f | bellard | user mode. It will change when a dedicated libc will be used */
|
454 | 4369415f | bellard | #define USE_STATIC_CODE_GEN_BUFFER
|
455 | 4369415f | bellard | #endif
|
456 | 4369415f | bellard | |
457 | 4369415f | bellard | #ifdef USE_STATIC_CODE_GEN_BUFFER
|
458 | ebf50fb3 | Aurelien Jarno | static uint8_t static_code_gen_buffer[DEFAULT_CODE_GEN_BUFFER_SIZE]
|
459 | ebf50fb3 | Aurelien Jarno | __attribute__((aligned (CODE_GEN_ALIGN))); |
460 | 4369415f | bellard | #endif
|
461 | 4369415f | bellard | |
462 | 8fcd3692 | blueswir1 | static void code_gen_alloc(unsigned long tb_size) |
463 | 26a5f13b | bellard | { |
464 | 4369415f | bellard | #ifdef USE_STATIC_CODE_GEN_BUFFER
|
465 | 4369415f | bellard | code_gen_buffer = static_code_gen_buffer; |
466 | 4369415f | bellard | code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE; |
467 | 4369415f | bellard | map_exec(code_gen_buffer, code_gen_buffer_size); |
468 | 4369415f | bellard | #else
|
469 | 26a5f13b | bellard | code_gen_buffer_size = tb_size; |
470 | 26a5f13b | bellard | if (code_gen_buffer_size == 0) { |
471 | 4369415f | bellard | #if defined(CONFIG_USER_ONLY)
|
472 | 4369415f | bellard | /* in user mode, phys_ram_size is not meaningful */
|
473 | 4369415f | bellard | code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE; |
474 | 4369415f | bellard | #else
|
475 | ccbb4d44 | Stuart Brady | /* XXX: needs adjustments */
|
476 | 94a6b54f | pbrook | code_gen_buffer_size = (unsigned long)(ram_size / 4); |
477 | 4369415f | bellard | #endif
|
478 | 26a5f13b | bellard | } |
479 | 26a5f13b | bellard | if (code_gen_buffer_size < MIN_CODE_GEN_BUFFER_SIZE)
|
480 | 26a5f13b | bellard | code_gen_buffer_size = MIN_CODE_GEN_BUFFER_SIZE; |
481 | 26a5f13b | bellard | /* The code gen buffer location may have constraints depending on
|
482 | 26a5f13b | bellard | the host cpu and OS */
|
483 | 26a5f13b | bellard | #if defined(__linux__)
|
484 | 26a5f13b | bellard | { |
485 | 26a5f13b | bellard | int flags;
|
486 | 141ac468 | blueswir1 | void *start = NULL; |
487 | 141ac468 | blueswir1 | |
488 | 26a5f13b | bellard | flags = MAP_PRIVATE | MAP_ANONYMOUS; |
489 | 26a5f13b | bellard | #if defined(__x86_64__)
|
490 | 26a5f13b | bellard | flags |= MAP_32BIT; |
491 | 26a5f13b | bellard | /* Cannot map more than that */
|
492 | 26a5f13b | bellard | if (code_gen_buffer_size > (800 * 1024 * 1024)) |
493 | 26a5f13b | bellard | code_gen_buffer_size = (800 * 1024 * 1024); |
494 | 141ac468 | blueswir1 | #elif defined(__sparc_v9__)
|
495 | 141ac468 | blueswir1 | // Map the buffer below 2G, so we can use direct calls and branches
|
496 | 141ac468 | blueswir1 | flags |= MAP_FIXED; |
497 | 141ac468 | blueswir1 | start = (void *) 0x60000000UL; |
498 | 141ac468 | blueswir1 | if (code_gen_buffer_size > (512 * 1024 * 1024)) |
499 | 141ac468 | blueswir1 | code_gen_buffer_size = (512 * 1024 * 1024); |
500 | 1cb0661e | balrog | #elif defined(__arm__)
|
501 | 63d41246 | balrog | /* Map the buffer below 32M, so we can use direct calls and branches */
|
502 | 1cb0661e | balrog | flags |= MAP_FIXED; |
503 | 1cb0661e | balrog | start = (void *) 0x01000000UL; |
504 | 1cb0661e | balrog | if (code_gen_buffer_size > 16 * 1024 * 1024) |
505 | 1cb0661e | balrog | code_gen_buffer_size = 16 * 1024 * 1024; |
506 | eba0b893 | Richard Henderson | #elif defined(__s390x__)
|
507 | eba0b893 | Richard Henderson | /* Map the buffer so that we can use direct calls and branches. */
|
508 | eba0b893 | Richard Henderson | /* We have a +- 4GB range on the branches; leave some slop. */
|
509 | eba0b893 | Richard Henderson | if (code_gen_buffer_size > (3ul * 1024 * 1024 * 1024)) { |
510 | eba0b893 | Richard Henderson | code_gen_buffer_size = 3ul * 1024 * 1024 * 1024; |
511 | eba0b893 | Richard Henderson | } |
512 | eba0b893 | Richard Henderson | start = (void *)0x90000000UL; |
513 | 26a5f13b | bellard | #endif
|
514 | 141ac468 | blueswir1 | code_gen_buffer = mmap(start, code_gen_buffer_size, |
515 | 141ac468 | blueswir1 | PROT_WRITE | PROT_READ | PROT_EXEC, |
516 | 26a5f13b | bellard | flags, -1, 0); |
517 | 26a5f13b | bellard | if (code_gen_buffer == MAP_FAILED) {
|
518 | 26a5f13b | bellard | fprintf(stderr, "Could not allocate dynamic translator buffer\n");
|
519 | 26a5f13b | bellard | exit(1);
|
520 | 26a5f13b | bellard | } |
521 | 26a5f13b | bellard | } |
522 | cbb608a5 | Brad | #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) \
|
523 | cbb608a5 | Brad | || defined(__DragonFly__) || defined(__OpenBSD__) |
524 | 06e67a82 | aliguori | { |
525 | 06e67a82 | aliguori | int flags;
|
526 | 06e67a82 | aliguori | void *addr = NULL; |
527 | 06e67a82 | aliguori | flags = MAP_PRIVATE | MAP_ANONYMOUS; |
528 | 06e67a82 | aliguori | #if defined(__x86_64__)
|
529 | 06e67a82 | aliguori | /* FreeBSD doesn't have MAP_32BIT, use MAP_FIXED and assume
|
530 | 06e67a82 | aliguori | * 0x40000000 is free */
|
531 | 06e67a82 | aliguori | flags |= MAP_FIXED; |
532 | 06e67a82 | aliguori | addr = (void *)0x40000000; |
533 | 06e67a82 | aliguori | /* Cannot map more than that */
|
534 | 06e67a82 | aliguori | if (code_gen_buffer_size > (800 * 1024 * 1024)) |
535 | 06e67a82 | aliguori | code_gen_buffer_size = (800 * 1024 * 1024); |
536 | 4cd31ad2 | Blue Swirl | #elif defined(__sparc_v9__)
|
537 | 4cd31ad2 | Blue Swirl | // Map the buffer below 2G, so we can use direct calls and branches
|
538 | 4cd31ad2 | Blue Swirl | flags |= MAP_FIXED; |
539 | 4cd31ad2 | Blue Swirl | addr = (void *) 0x60000000UL; |
540 | 4cd31ad2 | Blue Swirl | if (code_gen_buffer_size > (512 * 1024 * 1024)) { |
541 | 4cd31ad2 | Blue Swirl | code_gen_buffer_size = (512 * 1024 * 1024); |
542 | 4cd31ad2 | Blue Swirl | } |
543 | 06e67a82 | aliguori | #endif
|
544 | 06e67a82 | aliguori | code_gen_buffer = mmap(addr, code_gen_buffer_size, |
545 | 06e67a82 | aliguori | PROT_WRITE | PROT_READ | PROT_EXEC, |
546 | 06e67a82 | aliguori | flags, -1, 0); |
547 | 06e67a82 | aliguori | if (code_gen_buffer == MAP_FAILED) {
|
548 | 06e67a82 | aliguori | fprintf(stderr, "Could not allocate dynamic translator buffer\n");
|
549 | 06e67a82 | aliguori | exit(1);
|
550 | 06e67a82 | aliguori | } |
551 | 06e67a82 | aliguori | } |
552 | 26a5f13b | bellard | #else
|
553 | 26a5f13b | bellard | code_gen_buffer = qemu_malloc(code_gen_buffer_size); |
554 | 26a5f13b | bellard | map_exec(code_gen_buffer, code_gen_buffer_size); |
555 | 26a5f13b | bellard | #endif
|
556 | 4369415f | bellard | #endif /* !USE_STATIC_CODE_GEN_BUFFER */ |
557 | 26a5f13b | bellard | map_exec(code_gen_prologue, sizeof(code_gen_prologue));
|
558 | 26a5f13b | bellard | code_gen_buffer_max_size = code_gen_buffer_size - |
559 | 239fda31 | Aurelien Jarno | (TCG_MAX_OP_SIZE * OPC_MAX_SIZE); |
560 | 26a5f13b | bellard | code_gen_max_blocks = code_gen_buffer_size / CODE_GEN_AVG_BLOCK_SIZE; |
561 | 26a5f13b | bellard | tbs = qemu_malloc(code_gen_max_blocks * sizeof(TranslationBlock));
|
562 | 26a5f13b | bellard | } |
563 | 26a5f13b | bellard | |
564 | 26a5f13b | bellard | /* Must be called before using the QEMU cpus. 'tb_size' is the size
|
565 | 26a5f13b | bellard | (in bytes) allocated to the translation buffer. Zero means default
|
566 | 26a5f13b | bellard | size. */
|
567 | 26a5f13b | bellard | void cpu_exec_init_all(unsigned long tb_size) |
568 | 26a5f13b | bellard | { |
569 | 26a5f13b | bellard | cpu_gen_init(); |
570 | 26a5f13b | bellard | code_gen_alloc(tb_size); |
571 | 26a5f13b | bellard | code_gen_ptr = code_gen_buffer; |
572 | 4369415f | bellard | page_init(); |
573 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
|
574 | 26a5f13b | bellard | io_mem_init(); |
575 | e2eef170 | pbrook | #endif
|
576 | 9002ec79 | Richard Henderson | #if !defined(CONFIG_USER_ONLY) || !defined(CONFIG_USE_GUEST_BASE)
|
577 | 9002ec79 | Richard Henderson | /* There's no guest base to take into account, so go ahead and
|
578 | 9002ec79 | Richard Henderson | initialize the prologue now. */
|
579 | 9002ec79 | Richard Henderson | tcg_prologue_init(&tcg_ctx); |
580 | 9002ec79 | Richard Henderson | #endif
|
581 | 26a5f13b | bellard | } |
582 | 26a5f13b | bellard | |
583 | 9656f324 | pbrook | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY)
|
584 | 9656f324 | pbrook | |
585 | e59fb374 | Juan Quintela | static int cpu_common_post_load(void *opaque, int version_id) |
586 | e7f4eff7 | Juan Quintela | { |
587 | e7f4eff7 | Juan Quintela | CPUState *env = opaque; |
588 | 9656f324 | pbrook | |
589 | 3098dba0 | aurel32 | /* 0x01 was CPU_INTERRUPT_EXIT. This line can be removed when the
|
590 | 3098dba0 | aurel32 | version_id is increased. */
|
591 | 3098dba0 | aurel32 | env->interrupt_request &= ~0x01;
|
592 | 9656f324 | pbrook | tlb_flush(env, 1);
|
593 | 9656f324 | pbrook | |
594 | 9656f324 | pbrook | return 0; |
595 | 9656f324 | pbrook | } |
596 | e7f4eff7 | Juan Quintela | |
597 | e7f4eff7 | Juan Quintela | static const VMStateDescription vmstate_cpu_common = { |
598 | e7f4eff7 | Juan Quintela | .name = "cpu_common",
|
599 | e7f4eff7 | Juan Quintela | .version_id = 1,
|
600 | e7f4eff7 | Juan Quintela | .minimum_version_id = 1,
|
601 | e7f4eff7 | Juan Quintela | .minimum_version_id_old = 1,
|
602 | e7f4eff7 | Juan Quintela | .post_load = cpu_common_post_load, |
603 | e7f4eff7 | Juan Quintela | .fields = (VMStateField []) { |
604 | e7f4eff7 | Juan Quintela | VMSTATE_UINT32(halted, CPUState), |
605 | e7f4eff7 | Juan Quintela | VMSTATE_UINT32(interrupt_request, CPUState), |
606 | e7f4eff7 | Juan Quintela | VMSTATE_END_OF_LIST() |
607 | e7f4eff7 | Juan Quintela | } |
608 | e7f4eff7 | Juan Quintela | }; |
609 | 9656f324 | pbrook | #endif
|
610 | 9656f324 | pbrook | |
611 | 950f1472 | Glauber Costa | CPUState *qemu_get_cpu(int cpu)
|
612 | 950f1472 | Glauber Costa | { |
613 | 950f1472 | Glauber Costa | CPUState *env = first_cpu; |
614 | 950f1472 | Glauber Costa | |
615 | 950f1472 | Glauber Costa | while (env) {
|
616 | 950f1472 | Glauber Costa | if (env->cpu_index == cpu)
|
617 | 950f1472 | Glauber Costa | break;
|
618 | 950f1472 | Glauber Costa | env = env->next_cpu; |
619 | 950f1472 | Glauber Costa | } |
620 | 950f1472 | Glauber Costa | |
621 | 950f1472 | Glauber Costa | return env;
|
622 | 950f1472 | Glauber Costa | } |
623 | 950f1472 | Glauber Costa | |
624 | 6a00d601 | bellard | void cpu_exec_init(CPUState *env)
|
625 | fd6ce8f6 | bellard | { |
626 | 6a00d601 | bellard | CPUState **penv; |
627 | 6a00d601 | bellard | int cpu_index;
|
628 | 6a00d601 | bellard | |
629 | c2764719 | pbrook | #if defined(CONFIG_USER_ONLY)
|
630 | c2764719 | pbrook | cpu_list_lock(); |
631 | c2764719 | pbrook | #endif
|
632 | 6a00d601 | bellard | env->next_cpu = NULL;
|
633 | 6a00d601 | bellard | penv = &first_cpu; |
634 | 6a00d601 | bellard | cpu_index = 0;
|
635 | 6a00d601 | bellard | while (*penv != NULL) { |
636 | 1e9fa730 | Nathan Froyd | penv = &(*penv)->next_cpu; |
637 | 6a00d601 | bellard | cpu_index++; |
638 | 6a00d601 | bellard | } |
639 | 6a00d601 | bellard | env->cpu_index = cpu_index; |
640 | 268a362c | aliguori | env->numa_node = 0;
|
641 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->breakpoints); |
642 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->watchpoints); |
643 | dc7a09cf | Jan Kiszka | #ifndef CONFIG_USER_ONLY
|
644 | dc7a09cf | Jan Kiszka | env->thread_id = qemu_get_thread_id(); |
645 | dc7a09cf | Jan Kiszka | #endif
|
646 | 6a00d601 | bellard | *penv = env; |
647 | c2764719 | pbrook | #if defined(CONFIG_USER_ONLY)
|
648 | c2764719 | pbrook | cpu_list_unlock(); |
649 | c2764719 | pbrook | #endif
|
650 | b3c7724c | pbrook | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY)
|
651 | 0be71e32 | Alex Williamson | vmstate_register(NULL, cpu_index, &vmstate_cpu_common, env);
|
652 | 0be71e32 | Alex Williamson | register_savevm(NULL, "cpu", cpu_index, CPU_SAVE_VERSION, |
653 | b3c7724c | pbrook | cpu_save, cpu_load, env); |
654 | b3c7724c | pbrook | #endif
|
655 | fd6ce8f6 | bellard | } |
656 | fd6ce8f6 | bellard | |
657 | d1a1eb74 | Tristan Gingold | /* Allocate a new translation block. Flush the translation buffer if
|
658 | d1a1eb74 | Tristan Gingold | too many translation blocks or too much generated code. */
|
659 | d1a1eb74 | Tristan Gingold | static TranslationBlock *tb_alloc(target_ulong pc)
|
660 | d1a1eb74 | Tristan Gingold | { |
661 | d1a1eb74 | Tristan Gingold | TranslationBlock *tb; |
662 | d1a1eb74 | Tristan Gingold | |
663 | d1a1eb74 | Tristan Gingold | if (nb_tbs >= code_gen_max_blocks ||
|
664 | d1a1eb74 | Tristan Gingold | (code_gen_ptr - code_gen_buffer) >= code_gen_buffer_max_size) |
665 | d1a1eb74 | Tristan Gingold | return NULL; |
666 | d1a1eb74 | Tristan Gingold | tb = &tbs[nb_tbs++]; |
667 | d1a1eb74 | Tristan Gingold | tb->pc = pc; |
668 | d1a1eb74 | Tristan Gingold | tb->cflags = 0;
|
669 | d1a1eb74 | Tristan Gingold | return tb;
|
670 | d1a1eb74 | Tristan Gingold | } |
671 | d1a1eb74 | Tristan Gingold | |
672 | d1a1eb74 | Tristan Gingold | void tb_free(TranslationBlock *tb)
|
673 | d1a1eb74 | Tristan Gingold | { |
674 | d1a1eb74 | Tristan Gingold | /* In practice this is mostly used for single use temporary TB
|
675 | d1a1eb74 | Tristan Gingold | Ignore the hard cases and just back up if this TB happens to
|
676 | d1a1eb74 | Tristan Gingold | be the last one generated. */
|
677 | d1a1eb74 | Tristan Gingold | if (nb_tbs > 0 && tb == &tbs[nb_tbs - 1]) { |
678 | d1a1eb74 | Tristan Gingold | code_gen_ptr = tb->tc_ptr; |
679 | d1a1eb74 | Tristan Gingold | nb_tbs--; |
680 | d1a1eb74 | Tristan Gingold | } |
681 | d1a1eb74 | Tristan Gingold | } |
682 | d1a1eb74 | Tristan Gingold | |
683 | 9fa3e853 | bellard | static inline void invalidate_page_bitmap(PageDesc *p) |
684 | 9fa3e853 | bellard | { |
685 | 9fa3e853 | bellard | if (p->code_bitmap) {
|
686 | 59817ccb | bellard | qemu_free(p->code_bitmap); |
687 | 9fa3e853 | bellard | p->code_bitmap = NULL;
|
688 | 9fa3e853 | bellard | } |
689 | 9fa3e853 | bellard | p->code_write_count = 0;
|
690 | 9fa3e853 | bellard | } |
691 | 9fa3e853 | bellard | |
692 | 5cd2c5b6 | Richard Henderson | /* Set to NULL all the 'first_tb' fields in all PageDescs. */
|
693 | 5cd2c5b6 | Richard Henderson | |
694 | 5cd2c5b6 | Richard Henderson | static void page_flush_tb_1 (int level, void **lp) |
695 | fd6ce8f6 | bellard | { |
696 | 5cd2c5b6 | Richard Henderson | int i;
|
697 | fd6ce8f6 | bellard | |
698 | 5cd2c5b6 | Richard Henderson | if (*lp == NULL) { |
699 | 5cd2c5b6 | Richard Henderson | return;
|
700 | 5cd2c5b6 | Richard Henderson | } |
701 | 5cd2c5b6 | Richard Henderson | if (level == 0) { |
702 | 5cd2c5b6 | Richard Henderson | PageDesc *pd = *lp; |
703 | 7296abac | Paul Brook | for (i = 0; i < L2_SIZE; ++i) { |
704 | 5cd2c5b6 | Richard Henderson | pd[i].first_tb = NULL;
|
705 | 5cd2c5b6 | Richard Henderson | invalidate_page_bitmap(pd + i); |
706 | fd6ce8f6 | bellard | } |
707 | 5cd2c5b6 | Richard Henderson | } else {
|
708 | 5cd2c5b6 | Richard Henderson | void **pp = *lp;
|
709 | 7296abac | Paul Brook | for (i = 0; i < L2_SIZE; ++i) { |
710 | 5cd2c5b6 | Richard Henderson | page_flush_tb_1 (level - 1, pp + i);
|
711 | 5cd2c5b6 | Richard Henderson | } |
712 | 5cd2c5b6 | Richard Henderson | } |
713 | 5cd2c5b6 | Richard Henderson | } |
714 | 5cd2c5b6 | Richard Henderson | |
715 | 5cd2c5b6 | Richard Henderson | static void page_flush_tb(void) |
716 | 5cd2c5b6 | Richard Henderson | { |
717 | 5cd2c5b6 | Richard Henderson | int i;
|
718 | 5cd2c5b6 | Richard Henderson | for (i = 0; i < V_L1_SIZE; i++) { |
719 | 5cd2c5b6 | Richard Henderson | page_flush_tb_1(V_L1_SHIFT / L2_BITS - 1, l1_map + i);
|
720 | fd6ce8f6 | bellard | } |
721 | fd6ce8f6 | bellard | } |
722 | fd6ce8f6 | bellard | |
723 | fd6ce8f6 | bellard | /* flush all the translation blocks */
|
724 | d4e8164f | bellard | /* XXX: tb_flush is currently not thread safe */
|
725 | 6a00d601 | bellard | void tb_flush(CPUState *env1)
|
726 | fd6ce8f6 | bellard | { |
727 | 6a00d601 | bellard | CPUState *env; |
728 | 0124311e | bellard | #if defined(DEBUG_FLUSH)
|
729 | ab3d1727 | blueswir1 | printf("qemu: flush code_size=%ld nb_tbs=%d avg_tb_size=%ld\n",
|
730 | ab3d1727 | blueswir1 | (unsigned long)(code_gen_ptr - code_gen_buffer), |
731 | ab3d1727 | blueswir1 | nb_tbs, nb_tbs > 0 ?
|
732 | ab3d1727 | blueswir1 | ((unsigned long)(code_gen_ptr - code_gen_buffer)) / nb_tbs : 0); |
733 | fd6ce8f6 | bellard | #endif
|
734 | 26a5f13b | bellard | if ((unsigned long)(code_gen_ptr - code_gen_buffer) > code_gen_buffer_size) |
735 | a208e54a | pbrook | cpu_abort(env1, "Internal error: code buffer overflow\n");
|
736 | a208e54a | pbrook | |
737 | fd6ce8f6 | bellard | nb_tbs = 0;
|
738 | 3b46e624 | ths | |
739 | 6a00d601 | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
740 | 6a00d601 | bellard | memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *)); |
741 | 6a00d601 | bellard | } |
742 | 9fa3e853 | bellard | |
743 | 8a8a608f | bellard | memset (tb_phys_hash, 0, CODE_GEN_PHYS_HASH_SIZE * sizeof (void *)); |
744 | fd6ce8f6 | bellard | page_flush_tb(); |
745 | 9fa3e853 | bellard | |
746 | fd6ce8f6 | bellard | code_gen_ptr = code_gen_buffer; |
747 | d4e8164f | bellard | /* XXX: flush processor icache at this point if cache flush is
|
748 | d4e8164f | bellard | expensive */
|
749 | e3db7226 | bellard | tb_flush_count++; |
750 | fd6ce8f6 | bellard | } |
751 | fd6ce8f6 | bellard | |
752 | fd6ce8f6 | bellard | #ifdef DEBUG_TB_CHECK
|
753 | fd6ce8f6 | bellard | |
754 | bc98a7ef | j_mayer | static void tb_invalidate_check(target_ulong address) |
755 | fd6ce8f6 | bellard | { |
756 | fd6ce8f6 | bellard | TranslationBlock *tb; |
757 | fd6ce8f6 | bellard | int i;
|
758 | fd6ce8f6 | bellard | address &= TARGET_PAGE_MASK; |
759 | 99773bd4 | pbrook | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
760 | 99773bd4 | pbrook | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { |
761 | fd6ce8f6 | bellard | if (!(address + TARGET_PAGE_SIZE <= tb->pc ||
|
762 | fd6ce8f6 | bellard | address >= tb->pc + tb->size)) { |
763 | 0bf9e31a | Blue Swirl | printf("ERROR invalidate: address=" TARGET_FMT_lx
|
764 | 0bf9e31a | Blue Swirl | " PC=%08lx size=%04x\n",
|
765 | 99773bd4 | pbrook | address, (long)tb->pc, tb->size);
|
766 | fd6ce8f6 | bellard | } |
767 | fd6ce8f6 | bellard | } |
768 | fd6ce8f6 | bellard | } |
769 | fd6ce8f6 | bellard | } |
770 | fd6ce8f6 | bellard | |
771 | fd6ce8f6 | bellard | /* verify that all the pages have correct rights for code */
|
772 | fd6ce8f6 | bellard | static void tb_page_check(void) |
773 | fd6ce8f6 | bellard | { |
774 | fd6ce8f6 | bellard | TranslationBlock *tb; |
775 | fd6ce8f6 | bellard | int i, flags1, flags2;
|
776 | 3b46e624 | ths | |
777 | 99773bd4 | pbrook | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
778 | 99773bd4 | pbrook | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { |
779 | fd6ce8f6 | bellard | flags1 = page_get_flags(tb->pc); |
780 | fd6ce8f6 | bellard | flags2 = page_get_flags(tb->pc + tb->size - 1);
|
781 | fd6ce8f6 | bellard | if ((flags1 & PAGE_WRITE) || (flags2 & PAGE_WRITE)) {
|
782 | fd6ce8f6 | bellard | printf("ERROR page flags: PC=%08lx size=%04x f1=%x f2=%x\n",
|
783 | 99773bd4 | pbrook | (long)tb->pc, tb->size, flags1, flags2);
|
784 | fd6ce8f6 | bellard | } |
785 | fd6ce8f6 | bellard | } |
786 | fd6ce8f6 | bellard | } |
787 | fd6ce8f6 | bellard | } |
788 | fd6ce8f6 | bellard | |
789 | fd6ce8f6 | bellard | #endif
|
790 | fd6ce8f6 | bellard | |
791 | fd6ce8f6 | bellard | /* invalidate one TB */
|
792 | fd6ce8f6 | bellard | static inline void tb_remove(TranslationBlock **ptb, TranslationBlock *tb, |
793 | fd6ce8f6 | bellard | int next_offset)
|
794 | fd6ce8f6 | bellard | { |
795 | fd6ce8f6 | bellard | TranslationBlock *tb1; |
796 | fd6ce8f6 | bellard | for(;;) {
|
797 | fd6ce8f6 | bellard | tb1 = *ptb; |
798 | fd6ce8f6 | bellard | if (tb1 == tb) {
|
799 | fd6ce8f6 | bellard | *ptb = *(TranslationBlock **)((char *)tb1 + next_offset);
|
800 | fd6ce8f6 | bellard | break;
|
801 | fd6ce8f6 | bellard | } |
802 | fd6ce8f6 | bellard | ptb = (TranslationBlock **)((char *)tb1 + next_offset);
|
803 | fd6ce8f6 | bellard | } |
804 | fd6ce8f6 | bellard | } |
805 | fd6ce8f6 | bellard | |
806 | 9fa3e853 | bellard | static inline void tb_page_remove(TranslationBlock **ptb, TranslationBlock *tb) |
807 | 9fa3e853 | bellard | { |
808 | 9fa3e853 | bellard | TranslationBlock *tb1; |
809 | 9fa3e853 | bellard | unsigned int n1; |
810 | 9fa3e853 | bellard | |
811 | 9fa3e853 | bellard | for(;;) {
|
812 | 9fa3e853 | bellard | tb1 = *ptb; |
813 | 9fa3e853 | bellard | n1 = (long)tb1 & 3; |
814 | 9fa3e853 | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
815 | 9fa3e853 | bellard | if (tb1 == tb) {
|
816 | 9fa3e853 | bellard | *ptb = tb1->page_next[n1]; |
817 | 9fa3e853 | bellard | break;
|
818 | 9fa3e853 | bellard | } |
819 | 9fa3e853 | bellard | ptb = &tb1->page_next[n1]; |
820 | 9fa3e853 | bellard | } |
821 | 9fa3e853 | bellard | } |
822 | 9fa3e853 | bellard | |
823 | d4e8164f | bellard | static inline void tb_jmp_remove(TranslationBlock *tb, int n) |
824 | d4e8164f | bellard | { |
825 | d4e8164f | bellard | TranslationBlock *tb1, **ptb; |
826 | d4e8164f | bellard | unsigned int n1; |
827 | d4e8164f | bellard | |
828 | d4e8164f | bellard | ptb = &tb->jmp_next[n]; |
829 | d4e8164f | bellard | tb1 = *ptb; |
830 | d4e8164f | bellard | if (tb1) {
|
831 | d4e8164f | bellard | /* find tb(n) in circular list */
|
832 | d4e8164f | bellard | for(;;) {
|
833 | d4e8164f | bellard | tb1 = *ptb; |
834 | d4e8164f | bellard | n1 = (long)tb1 & 3; |
835 | d4e8164f | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
836 | d4e8164f | bellard | if (n1 == n && tb1 == tb)
|
837 | d4e8164f | bellard | break;
|
838 | d4e8164f | bellard | if (n1 == 2) { |
839 | d4e8164f | bellard | ptb = &tb1->jmp_first; |
840 | d4e8164f | bellard | } else {
|
841 | d4e8164f | bellard | ptb = &tb1->jmp_next[n1]; |
842 | d4e8164f | bellard | } |
843 | d4e8164f | bellard | } |
844 | d4e8164f | bellard | /* now we can suppress tb(n) from the list */
|
845 | d4e8164f | bellard | *ptb = tb->jmp_next[n]; |
846 | d4e8164f | bellard | |
847 | d4e8164f | bellard | tb->jmp_next[n] = NULL;
|
848 | d4e8164f | bellard | } |
849 | d4e8164f | bellard | } |
850 | d4e8164f | bellard | |
851 | d4e8164f | bellard | /* reset the jump entry 'n' of a TB so that it is not chained to
|
852 | d4e8164f | bellard | another TB */
|
853 | d4e8164f | bellard | static inline void tb_reset_jump(TranslationBlock *tb, int n) |
854 | d4e8164f | bellard | { |
855 | d4e8164f | bellard | tb_set_jmp_target(tb, n, (unsigned long)(tb->tc_ptr + tb->tb_next_offset[n])); |
856 | d4e8164f | bellard | } |
857 | d4e8164f | bellard | |
858 | 41c1b1c9 | Paul Brook | void tb_phys_invalidate(TranslationBlock *tb, tb_page_addr_t page_addr)
|
859 | fd6ce8f6 | bellard | { |
860 | 6a00d601 | bellard | CPUState *env; |
861 | 8a40a180 | bellard | PageDesc *p; |
862 | d4e8164f | bellard | unsigned int h, n1; |
863 | 41c1b1c9 | Paul Brook | tb_page_addr_t phys_pc; |
864 | 8a40a180 | bellard | TranslationBlock *tb1, *tb2; |
865 | 3b46e624 | ths | |
866 | 8a40a180 | bellard | /* remove the TB from the hash list */
|
867 | 8a40a180 | bellard | phys_pc = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK);
|
868 | 8a40a180 | bellard | h = tb_phys_hash_func(phys_pc); |
869 | 5fafdf24 | ths | tb_remove(&tb_phys_hash[h], tb, |
870 | 8a40a180 | bellard | offsetof(TranslationBlock, phys_hash_next)); |
871 | 8a40a180 | bellard | |
872 | 8a40a180 | bellard | /* remove the TB from the page list */
|
873 | 8a40a180 | bellard | if (tb->page_addr[0] != page_addr) { |
874 | 8a40a180 | bellard | p = page_find(tb->page_addr[0] >> TARGET_PAGE_BITS);
|
875 | 8a40a180 | bellard | tb_page_remove(&p->first_tb, tb); |
876 | 8a40a180 | bellard | invalidate_page_bitmap(p); |
877 | 8a40a180 | bellard | } |
878 | 8a40a180 | bellard | if (tb->page_addr[1] != -1 && tb->page_addr[1] != page_addr) { |
879 | 8a40a180 | bellard | p = page_find(tb->page_addr[1] >> TARGET_PAGE_BITS);
|
880 | 8a40a180 | bellard | tb_page_remove(&p->first_tb, tb); |
881 | 8a40a180 | bellard | invalidate_page_bitmap(p); |
882 | 8a40a180 | bellard | } |
883 | 8a40a180 | bellard | |
884 | 36bdbe54 | bellard | tb_invalidated_flag = 1;
|
885 | 59817ccb | bellard | |
886 | fd6ce8f6 | bellard | /* remove the TB from the hash list */
|
887 | 8a40a180 | bellard | h = tb_jmp_cache_hash_func(tb->pc); |
888 | 6a00d601 | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
889 | 6a00d601 | bellard | if (env->tb_jmp_cache[h] == tb)
|
890 | 6a00d601 | bellard | env->tb_jmp_cache[h] = NULL;
|
891 | 6a00d601 | bellard | } |
892 | d4e8164f | bellard | |
893 | d4e8164f | bellard | /* suppress this TB from the two jump lists */
|
894 | d4e8164f | bellard | tb_jmp_remove(tb, 0);
|
895 | d4e8164f | bellard | tb_jmp_remove(tb, 1);
|
896 | d4e8164f | bellard | |
897 | d4e8164f | bellard | /* suppress any remaining jumps to this TB */
|
898 | d4e8164f | bellard | tb1 = tb->jmp_first; |
899 | d4e8164f | bellard | for(;;) {
|
900 | d4e8164f | bellard | n1 = (long)tb1 & 3; |
901 | d4e8164f | bellard | if (n1 == 2) |
902 | d4e8164f | bellard | break;
|
903 | d4e8164f | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
904 | d4e8164f | bellard | tb2 = tb1->jmp_next[n1]; |
905 | d4e8164f | bellard | tb_reset_jump(tb1, n1); |
906 | d4e8164f | bellard | tb1->jmp_next[n1] = NULL;
|
907 | d4e8164f | bellard | tb1 = tb2; |
908 | d4e8164f | bellard | } |
909 | d4e8164f | bellard | tb->jmp_first = (TranslationBlock *)((long)tb | 2); /* fail safe */ |
910 | 9fa3e853 | bellard | |
911 | e3db7226 | bellard | tb_phys_invalidate_count++; |
912 | 9fa3e853 | bellard | } |
913 | 9fa3e853 | bellard | |
914 | 9fa3e853 | bellard | static inline void set_bits(uint8_t *tab, int start, int len) |
915 | 9fa3e853 | bellard | { |
916 | 9fa3e853 | bellard | int end, mask, end1;
|
917 | 9fa3e853 | bellard | |
918 | 9fa3e853 | bellard | end = start + len; |
919 | 9fa3e853 | bellard | tab += start >> 3;
|
920 | 9fa3e853 | bellard | mask = 0xff << (start & 7); |
921 | 9fa3e853 | bellard | if ((start & ~7) == (end & ~7)) { |
922 | 9fa3e853 | bellard | if (start < end) {
|
923 | 9fa3e853 | bellard | mask &= ~(0xff << (end & 7)); |
924 | 9fa3e853 | bellard | *tab |= mask; |
925 | 9fa3e853 | bellard | } |
926 | 9fa3e853 | bellard | } else {
|
927 | 9fa3e853 | bellard | *tab++ |= mask; |
928 | 9fa3e853 | bellard | start = (start + 8) & ~7; |
929 | 9fa3e853 | bellard | end1 = end & ~7;
|
930 | 9fa3e853 | bellard | while (start < end1) {
|
931 | 9fa3e853 | bellard | *tab++ = 0xff;
|
932 | 9fa3e853 | bellard | start += 8;
|
933 | 9fa3e853 | bellard | } |
934 | 9fa3e853 | bellard | if (start < end) {
|
935 | 9fa3e853 | bellard | mask = ~(0xff << (end & 7)); |
936 | 9fa3e853 | bellard | *tab |= mask; |
937 | 9fa3e853 | bellard | } |
938 | 9fa3e853 | bellard | } |
939 | 9fa3e853 | bellard | } |
940 | 9fa3e853 | bellard | |
941 | 9fa3e853 | bellard | static void build_page_bitmap(PageDesc *p) |
942 | 9fa3e853 | bellard | { |
943 | 9fa3e853 | bellard | int n, tb_start, tb_end;
|
944 | 9fa3e853 | bellard | TranslationBlock *tb; |
945 | 3b46e624 | ths | |
946 | b2a7081a | pbrook | p->code_bitmap = qemu_mallocz(TARGET_PAGE_SIZE / 8);
|
947 | 9fa3e853 | bellard | |
948 | 9fa3e853 | bellard | tb = p->first_tb; |
949 | 9fa3e853 | bellard | while (tb != NULL) { |
950 | 9fa3e853 | bellard | n = (long)tb & 3; |
951 | 9fa3e853 | bellard | tb = (TranslationBlock *)((long)tb & ~3); |
952 | 9fa3e853 | bellard | /* NOTE: this is subtle as a TB may span two physical pages */
|
953 | 9fa3e853 | bellard | if (n == 0) { |
954 | 9fa3e853 | bellard | /* NOTE: tb_end may be after the end of the page, but
|
955 | 9fa3e853 | bellard | it is not a problem */
|
956 | 9fa3e853 | bellard | tb_start = tb->pc & ~TARGET_PAGE_MASK; |
957 | 9fa3e853 | bellard | tb_end = tb_start + tb->size; |
958 | 9fa3e853 | bellard | if (tb_end > TARGET_PAGE_SIZE)
|
959 | 9fa3e853 | bellard | tb_end = TARGET_PAGE_SIZE; |
960 | 9fa3e853 | bellard | } else {
|
961 | 9fa3e853 | bellard | tb_start = 0;
|
962 | 9fa3e853 | bellard | tb_end = ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); |
963 | 9fa3e853 | bellard | } |
964 | 9fa3e853 | bellard | set_bits(p->code_bitmap, tb_start, tb_end - tb_start); |
965 | 9fa3e853 | bellard | tb = tb->page_next[n]; |
966 | 9fa3e853 | bellard | } |
967 | 9fa3e853 | bellard | } |
968 | 9fa3e853 | bellard | |
969 | 2e70f6ef | pbrook | TranslationBlock *tb_gen_code(CPUState *env, |
970 | 2e70f6ef | pbrook | target_ulong pc, target_ulong cs_base, |
971 | 2e70f6ef | pbrook | int flags, int cflags) |
972 | d720b93d | bellard | { |
973 | d720b93d | bellard | TranslationBlock *tb; |
974 | d720b93d | bellard | uint8_t *tc_ptr; |
975 | 41c1b1c9 | Paul Brook | tb_page_addr_t phys_pc, phys_page2; |
976 | 41c1b1c9 | Paul Brook | target_ulong virt_page2; |
977 | d720b93d | bellard | int code_gen_size;
|
978 | d720b93d | bellard | |
979 | 41c1b1c9 | Paul Brook | phys_pc = get_page_addr_code(env, pc); |
980 | c27004ec | bellard | tb = tb_alloc(pc); |
981 | d720b93d | bellard | if (!tb) {
|
982 | d720b93d | bellard | /* flush must be done */
|
983 | d720b93d | bellard | tb_flush(env); |
984 | d720b93d | bellard | /* cannot fail at this point */
|
985 | c27004ec | bellard | tb = tb_alloc(pc); |
986 | 2e70f6ef | pbrook | /* Don't forget to invalidate previous TB info. */
|
987 | 2e70f6ef | pbrook | tb_invalidated_flag = 1;
|
988 | d720b93d | bellard | } |
989 | d720b93d | bellard | tc_ptr = code_gen_ptr; |
990 | d720b93d | bellard | tb->tc_ptr = tc_ptr; |
991 | d720b93d | bellard | tb->cs_base = cs_base; |
992 | d720b93d | bellard | tb->flags = flags; |
993 | d720b93d | bellard | tb->cflags = cflags; |
994 | d07bde88 | blueswir1 | cpu_gen_code(env, tb, &code_gen_size); |
995 | d720b93d | bellard | code_gen_ptr = (void *)(((unsigned long)code_gen_ptr + code_gen_size + CODE_GEN_ALIGN - 1) & ~(CODE_GEN_ALIGN - 1)); |
996 | 3b46e624 | ths | |
997 | d720b93d | bellard | /* check next page if needed */
|
998 | c27004ec | bellard | virt_page2 = (pc + tb->size - 1) & TARGET_PAGE_MASK;
|
999 | d720b93d | bellard | phys_page2 = -1;
|
1000 | c27004ec | bellard | if ((pc & TARGET_PAGE_MASK) != virt_page2) {
|
1001 | 41c1b1c9 | Paul Brook | phys_page2 = get_page_addr_code(env, virt_page2); |
1002 | d720b93d | bellard | } |
1003 | 41c1b1c9 | Paul Brook | tb_link_page(tb, phys_pc, phys_page2); |
1004 | 2e70f6ef | pbrook | return tb;
|
1005 | d720b93d | bellard | } |
1006 | 3b46e624 | ths | |
1007 | 9fa3e853 | bellard | /* invalidate all TBs which intersect with the target physical page
|
1008 | 9fa3e853 | bellard | starting in range [start;end[. NOTE: start and end must refer to
|
1009 | d720b93d | bellard | the same physical page. 'is_cpu_write_access' should be true if called
|
1010 | d720b93d | bellard | from a real cpu write access: the virtual CPU will exit the current
|
1011 | d720b93d | bellard | TB if code is modified inside this TB. */
|
1012 | 41c1b1c9 | Paul Brook | void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end,
|
1013 | d720b93d | bellard | int is_cpu_write_access)
|
1014 | d720b93d | bellard | { |
1015 | 6b917547 | aliguori | TranslationBlock *tb, *tb_next, *saved_tb; |
1016 | d720b93d | bellard | CPUState *env = cpu_single_env; |
1017 | 41c1b1c9 | Paul Brook | tb_page_addr_t tb_start, tb_end; |
1018 | 6b917547 | aliguori | PageDesc *p; |
1019 | 6b917547 | aliguori | int n;
|
1020 | 6b917547 | aliguori | #ifdef TARGET_HAS_PRECISE_SMC
|
1021 | 6b917547 | aliguori | int current_tb_not_found = is_cpu_write_access;
|
1022 | 6b917547 | aliguori | TranslationBlock *current_tb = NULL;
|
1023 | 6b917547 | aliguori | int current_tb_modified = 0; |
1024 | 6b917547 | aliguori | target_ulong current_pc = 0;
|
1025 | 6b917547 | aliguori | target_ulong current_cs_base = 0;
|
1026 | 6b917547 | aliguori | int current_flags = 0; |
1027 | 6b917547 | aliguori | #endif /* TARGET_HAS_PRECISE_SMC */ |
1028 | 9fa3e853 | bellard | |
1029 | 9fa3e853 | bellard | p = page_find(start >> TARGET_PAGE_BITS); |
1030 | 5fafdf24 | ths | if (!p)
|
1031 | 9fa3e853 | bellard | return;
|
1032 | 5fafdf24 | ths | if (!p->code_bitmap &&
|
1033 | d720b93d | bellard | ++p->code_write_count >= SMC_BITMAP_USE_THRESHOLD && |
1034 | d720b93d | bellard | is_cpu_write_access) { |
1035 | 9fa3e853 | bellard | /* build code bitmap */
|
1036 | 9fa3e853 | bellard | build_page_bitmap(p); |
1037 | 9fa3e853 | bellard | } |
1038 | 9fa3e853 | bellard | |
1039 | 9fa3e853 | bellard | /* we remove all the TBs in the range [start, end[ */
|
1040 | 9fa3e853 | bellard | /* XXX: see if in some cases it could be faster to invalidate all the code */
|
1041 | 9fa3e853 | bellard | tb = p->first_tb; |
1042 | 9fa3e853 | bellard | while (tb != NULL) { |
1043 | 9fa3e853 | bellard | n = (long)tb & 3; |
1044 | 9fa3e853 | bellard | tb = (TranslationBlock *)((long)tb & ~3); |
1045 | 9fa3e853 | bellard | tb_next = tb->page_next[n]; |
1046 | 9fa3e853 | bellard | /* NOTE: this is subtle as a TB may span two physical pages */
|
1047 | 9fa3e853 | bellard | if (n == 0) { |
1048 | 9fa3e853 | bellard | /* NOTE: tb_end may be after the end of the page, but
|
1049 | 9fa3e853 | bellard | it is not a problem */
|
1050 | 9fa3e853 | bellard | tb_start = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK);
|
1051 | 9fa3e853 | bellard | tb_end = tb_start + tb->size; |
1052 | 9fa3e853 | bellard | } else {
|
1053 | 9fa3e853 | bellard | tb_start = tb->page_addr[1];
|
1054 | 9fa3e853 | bellard | tb_end = tb_start + ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); |
1055 | 9fa3e853 | bellard | } |
1056 | 9fa3e853 | bellard | if (!(tb_end <= start || tb_start >= end)) {
|
1057 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1058 | d720b93d | bellard | if (current_tb_not_found) {
|
1059 | d720b93d | bellard | current_tb_not_found = 0;
|
1060 | d720b93d | bellard | current_tb = NULL;
|
1061 | 2e70f6ef | pbrook | if (env->mem_io_pc) {
|
1062 | d720b93d | bellard | /* now we have a real cpu fault */
|
1063 | 2e70f6ef | pbrook | current_tb = tb_find_pc(env->mem_io_pc); |
1064 | d720b93d | bellard | } |
1065 | d720b93d | bellard | } |
1066 | d720b93d | bellard | if (current_tb == tb &&
|
1067 | 2e70f6ef | pbrook | (current_tb->cflags & CF_COUNT_MASK) != 1) {
|
1068 | d720b93d | bellard | /* If we are modifying the current TB, we must stop
|
1069 | d720b93d | bellard | its execution. We could be more precise by checking
|
1070 | d720b93d | bellard | that the modification is after the current PC, but it
|
1071 | d720b93d | bellard | would require a specialized function to partially
|
1072 | d720b93d | bellard | restore the CPU state */
|
1073 | 3b46e624 | ths | |
1074 | d720b93d | bellard | current_tb_modified = 1;
|
1075 | 618ba8e6 | Stefan Weil | cpu_restore_state(current_tb, env, env->mem_io_pc); |
1076 | 6b917547 | aliguori | cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, |
1077 | 6b917547 | aliguori | ¤t_flags); |
1078 | d720b93d | bellard | } |
1079 | d720b93d | bellard | #endif /* TARGET_HAS_PRECISE_SMC */ |
1080 | 6f5a9f7e | bellard | /* we need to do that to handle the case where a signal
|
1081 | 6f5a9f7e | bellard | occurs while doing tb_phys_invalidate() */
|
1082 | 6f5a9f7e | bellard | saved_tb = NULL;
|
1083 | 6f5a9f7e | bellard | if (env) {
|
1084 | 6f5a9f7e | bellard | saved_tb = env->current_tb; |
1085 | 6f5a9f7e | bellard | env->current_tb = NULL;
|
1086 | 6f5a9f7e | bellard | } |
1087 | 9fa3e853 | bellard | tb_phys_invalidate(tb, -1);
|
1088 | 6f5a9f7e | bellard | if (env) {
|
1089 | 6f5a9f7e | bellard | env->current_tb = saved_tb; |
1090 | 6f5a9f7e | bellard | if (env->interrupt_request && env->current_tb)
|
1091 | 6f5a9f7e | bellard | cpu_interrupt(env, env->interrupt_request); |
1092 | 6f5a9f7e | bellard | } |
1093 | 9fa3e853 | bellard | } |
1094 | 9fa3e853 | bellard | tb = tb_next; |
1095 | 9fa3e853 | bellard | } |
1096 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
1097 | 9fa3e853 | bellard | /* if no code remaining, no need to continue to use slow writes */
|
1098 | 9fa3e853 | bellard | if (!p->first_tb) {
|
1099 | 9fa3e853 | bellard | invalidate_page_bitmap(p); |
1100 | d720b93d | bellard | if (is_cpu_write_access) {
|
1101 | 2e70f6ef | pbrook | tlb_unprotect_code_phys(env, start, env->mem_io_vaddr); |
1102 | d720b93d | bellard | } |
1103 | d720b93d | bellard | } |
1104 | d720b93d | bellard | #endif
|
1105 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1106 | d720b93d | bellard | if (current_tb_modified) {
|
1107 | d720b93d | bellard | /* we generate a block containing just the instruction
|
1108 | d720b93d | bellard | modifying the memory. It will ensure that it cannot modify
|
1109 | d720b93d | bellard | itself */
|
1110 | ea1c1802 | bellard | env->current_tb = NULL;
|
1111 | 2e70f6ef | pbrook | tb_gen_code(env, current_pc, current_cs_base, current_flags, 1);
|
1112 | d720b93d | bellard | cpu_resume_from_signal(env, NULL);
|
1113 | 9fa3e853 | bellard | } |
1114 | fd6ce8f6 | bellard | #endif
|
1115 | 9fa3e853 | bellard | } |
1116 | fd6ce8f6 | bellard | |
1117 | 9fa3e853 | bellard | /* len must be <= 8 and start must be a multiple of len */
|
1118 | 41c1b1c9 | Paul Brook | static inline void tb_invalidate_phys_page_fast(tb_page_addr_t start, int len) |
1119 | 9fa3e853 | bellard | { |
1120 | 9fa3e853 | bellard | PageDesc *p; |
1121 | 9fa3e853 | bellard | int offset, b;
|
1122 | 59817ccb | bellard | #if 0
|
1123 | a4193c8a | bellard | if (1) {
|
1124 | 93fcfe39 | aliguori | qemu_log("modifying code at 0x%x size=%d EIP=%x PC=%08x\n",
|
1125 | 93fcfe39 | aliguori | cpu_single_env->mem_io_vaddr, len,
|
1126 | 93fcfe39 | aliguori | cpu_single_env->eip,
|
1127 | 93fcfe39 | aliguori | cpu_single_env->eip + (long)cpu_single_env->segs[R_CS].base);
|
1128 | 59817ccb | bellard | }
|
1129 | 59817ccb | bellard | #endif
|
1130 | 9fa3e853 | bellard | p = page_find(start >> TARGET_PAGE_BITS); |
1131 | 5fafdf24 | ths | if (!p)
|
1132 | 9fa3e853 | bellard | return;
|
1133 | 9fa3e853 | bellard | if (p->code_bitmap) {
|
1134 | 9fa3e853 | bellard | offset = start & ~TARGET_PAGE_MASK; |
1135 | 9fa3e853 | bellard | b = p->code_bitmap[offset >> 3] >> (offset & 7); |
1136 | 9fa3e853 | bellard | if (b & ((1 << len) - 1)) |
1137 | 9fa3e853 | bellard | goto do_invalidate;
|
1138 | 9fa3e853 | bellard | } else {
|
1139 | 9fa3e853 | bellard | do_invalidate:
|
1140 | d720b93d | bellard | tb_invalidate_phys_page_range(start, start + len, 1);
|
1141 | 9fa3e853 | bellard | } |
1142 | 9fa3e853 | bellard | } |
1143 | 9fa3e853 | bellard | |
1144 | 9fa3e853 | bellard | #if !defined(CONFIG_SOFTMMU)
|
1145 | 41c1b1c9 | Paul Brook | static void tb_invalidate_phys_page(tb_page_addr_t addr, |
1146 | d720b93d | bellard | unsigned long pc, void *puc) |
1147 | 9fa3e853 | bellard | { |
1148 | 6b917547 | aliguori | TranslationBlock *tb; |
1149 | 9fa3e853 | bellard | PageDesc *p; |
1150 | 6b917547 | aliguori | int n;
|
1151 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1152 | 6b917547 | aliguori | TranslationBlock *current_tb = NULL;
|
1153 | d720b93d | bellard | CPUState *env = cpu_single_env; |
1154 | 6b917547 | aliguori | int current_tb_modified = 0; |
1155 | 6b917547 | aliguori | target_ulong current_pc = 0;
|
1156 | 6b917547 | aliguori | target_ulong current_cs_base = 0;
|
1157 | 6b917547 | aliguori | int current_flags = 0; |
1158 | d720b93d | bellard | #endif
|
1159 | 9fa3e853 | bellard | |
1160 | 9fa3e853 | bellard | addr &= TARGET_PAGE_MASK; |
1161 | 9fa3e853 | bellard | p = page_find(addr >> TARGET_PAGE_BITS); |
1162 | 5fafdf24 | ths | if (!p)
|
1163 | 9fa3e853 | bellard | return;
|
1164 | 9fa3e853 | bellard | tb = p->first_tb; |
1165 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1166 | d720b93d | bellard | if (tb && pc != 0) { |
1167 | d720b93d | bellard | current_tb = tb_find_pc(pc); |
1168 | d720b93d | bellard | } |
1169 | d720b93d | bellard | #endif
|
1170 | 9fa3e853 | bellard | while (tb != NULL) { |
1171 | 9fa3e853 | bellard | n = (long)tb & 3; |
1172 | 9fa3e853 | bellard | tb = (TranslationBlock *)((long)tb & ~3); |
1173 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1174 | d720b93d | bellard | if (current_tb == tb &&
|
1175 | 2e70f6ef | pbrook | (current_tb->cflags & CF_COUNT_MASK) != 1) {
|
1176 | d720b93d | bellard | /* If we are modifying the current TB, we must stop
|
1177 | d720b93d | bellard | its execution. We could be more precise by checking
|
1178 | d720b93d | bellard | that the modification is after the current PC, but it
|
1179 | d720b93d | bellard | would require a specialized function to partially
|
1180 | d720b93d | bellard | restore the CPU state */
|
1181 | 3b46e624 | ths | |
1182 | d720b93d | bellard | current_tb_modified = 1;
|
1183 | 618ba8e6 | Stefan Weil | cpu_restore_state(current_tb, env, pc); |
1184 | 6b917547 | aliguori | cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, |
1185 | 6b917547 | aliguori | ¤t_flags); |
1186 | d720b93d | bellard | } |
1187 | d720b93d | bellard | #endif /* TARGET_HAS_PRECISE_SMC */ |
1188 | 9fa3e853 | bellard | tb_phys_invalidate(tb, addr); |
1189 | 9fa3e853 | bellard | tb = tb->page_next[n]; |
1190 | 9fa3e853 | bellard | } |
1191 | fd6ce8f6 | bellard | p->first_tb = NULL;
|
1192 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1193 | d720b93d | bellard | if (current_tb_modified) {
|
1194 | d720b93d | bellard | /* we generate a block containing just the instruction
|
1195 | d720b93d | bellard | modifying the memory. It will ensure that it cannot modify
|
1196 | d720b93d | bellard | itself */
|
1197 | ea1c1802 | bellard | env->current_tb = NULL;
|
1198 | 2e70f6ef | pbrook | tb_gen_code(env, current_pc, current_cs_base, current_flags, 1);
|
1199 | d720b93d | bellard | cpu_resume_from_signal(env, puc); |
1200 | d720b93d | bellard | } |
1201 | d720b93d | bellard | #endif
|
1202 | fd6ce8f6 | bellard | } |
1203 | 9fa3e853 | bellard | #endif
|
1204 | fd6ce8f6 | bellard | |
1205 | fd6ce8f6 | bellard | /* add the tb in the target page and protect it if necessary */
|
1206 | 5fafdf24 | ths | static inline void tb_alloc_page(TranslationBlock *tb, |
1207 | 41c1b1c9 | Paul Brook | unsigned int n, tb_page_addr_t page_addr) |
1208 | fd6ce8f6 | bellard | { |
1209 | fd6ce8f6 | bellard | PageDesc *p; |
1210 | 9fa3e853 | bellard | TranslationBlock *last_first_tb; |
1211 | 9fa3e853 | bellard | |
1212 | 9fa3e853 | bellard | tb->page_addr[n] = page_addr; |
1213 | 5cd2c5b6 | Richard Henderson | p = page_find_alloc(page_addr >> TARGET_PAGE_BITS, 1);
|
1214 | 9fa3e853 | bellard | tb->page_next[n] = p->first_tb; |
1215 | 9fa3e853 | bellard | last_first_tb = p->first_tb; |
1216 | 9fa3e853 | bellard | p->first_tb = (TranslationBlock *)((long)tb | n);
|
1217 | 9fa3e853 | bellard | invalidate_page_bitmap(p); |
1218 | fd6ce8f6 | bellard | |
1219 | 107db443 | bellard | #if defined(TARGET_HAS_SMC) || 1 |
1220 | d720b93d | bellard | |
1221 | 9fa3e853 | bellard | #if defined(CONFIG_USER_ONLY)
|
1222 | fd6ce8f6 | bellard | if (p->flags & PAGE_WRITE) {
|
1223 | 53a5960a | pbrook | target_ulong addr; |
1224 | 53a5960a | pbrook | PageDesc *p2; |
1225 | 9fa3e853 | bellard | int prot;
|
1226 | 9fa3e853 | bellard | |
1227 | fd6ce8f6 | bellard | /* force the host page as non writable (writes will have a
|
1228 | fd6ce8f6 | bellard | page fault + mprotect overhead) */
|
1229 | 53a5960a | pbrook | page_addr &= qemu_host_page_mask; |
1230 | fd6ce8f6 | bellard | prot = 0;
|
1231 | 53a5960a | pbrook | for(addr = page_addr; addr < page_addr + qemu_host_page_size;
|
1232 | 53a5960a | pbrook | addr += TARGET_PAGE_SIZE) { |
1233 | 53a5960a | pbrook | |
1234 | 53a5960a | pbrook | p2 = page_find (addr >> TARGET_PAGE_BITS); |
1235 | 53a5960a | pbrook | if (!p2)
|
1236 | 53a5960a | pbrook | continue;
|
1237 | 53a5960a | pbrook | prot |= p2->flags; |
1238 | 53a5960a | pbrook | p2->flags &= ~PAGE_WRITE; |
1239 | 53a5960a | pbrook | } |
1240 | 5fafdf24 | ths | mprotect(g2h(page_addr), qemu_host_page_size, |
1241 | fd6ce8f6 | bellard | (prot & PAGE_BITS) & ~PAGE_WRITE); |
1242 | fd6ce8f6 | bellard | #ifdef DEBUG_TB_INVALIDATE
|
1243 | ab3d1727 | blueswir1 | printf("protecting code page: 0x" TARGET_FMT_lx "\n", |
1244 | 53a5960a | pbrook | page_addr); |
1245 | fd6ce8f6 | bellard | #endif
|
1246 | fd6ce8f6 | bellard | } |
1247 | 9fa3e853 | bellard | #else
|
1248 | 9fa3e853 | bellard | /* if some code is already present, then the pages are already
|
1249 | 9fa3e853 | bellard | protected. So we handle the case where only the first TB is
|
1250 | 9fa3e853 | bellard | allocated in a physical page */
|
1251 | 9fa3e853 | bellard | if (!last_first_tb) {
|
1252 | 6a00d601 | bellard | tlb_protect_code(page_addr); |
1253 | 9fa3e853 | bellard | } |
1254 | 9fa3e853 | bellard | #endif
|
1255 | d720b93d | bellard | |
1256 | d720b93d | bellard | #endif /* TARGET_HAS_SMC */ |
1257 | fd6ce8f6 | bellard | } |
1258 | fd6ce8f6 | bellard | |
1259 | 9fa3e853 | bellard | /* add a new TB and link it to the physical page tables. phys_page2 is
|
1260 | 9fa3e853 | bellard | (-1) to indicate that only one page contains the TB. */
|
1261 | 41c1b1c9 | Paul Brook | void tb_link_page(TranslationBlock *tb,
|
1262 | 41c1b1c9 | Paul Brook | tb_page_addr_t phys_pc, tb_page_addr_t phys_page2) |
1263 | d4e8164f | bellard | { |
1264 | 9fa3e853 | bellard | unsigned int h; |
1265 | 9fa3e853 | bellard | TranslationBlock **ptb; |
1266 | 9fa3e853 | bellard | |
1267 | c8a706fe | pbrook | /* Grab the mmap lock to stop another thread invalidating this TB
|
1268 | c8a706fe | pbrook | before we are done. */
|
1269 | c8a706fe | pbrook | mmap_lock(); |
1270 | 9fa3e853 | bellard | /* add in the physical hash table */
|
1271 | 9fa3e853 | bellard | h = tb_phys_hash_func(phys_pc); |
1272 | 9fa3e853 | bellard | ptb = &tb_phys_hash[h]; |
1273 | 9fa3e853 | bellard | tb->phys_hash_next = *ptb; |
1274 | 9fa3e853 | bellard | *ptb = tb; |
1275 | fd6ce8f6 | bellard | |
1276 | fd6ce8f6 | bellard | /* add in the page list */
|
1277 | 9fa3e853 | bellard | tb_alloc_page(tb, 0, phys_pc & TARGET_PAGE_MASK);
|
1278 | 9fa3e853 | bellard | if (phys_page2 != -1) |
1279 | 9fa3e853 | bellard | tb_alloc_page(tb, 1, phys_page2);
|
1280 | 9fa3e853 | bellard | else
|
1281 | 9fa3e853 | bellard | tb->page_addr[1] = -1; |
1282 | 9fa3e853 | bellard | |
1283 | d4e8164f | bellard | tb->jmp_first = (TranslationBlock *)((long)tb | 2); |
1284 | d4e8164f | bellard | tb->jmp_next[0] = NULL; |
1285 | d4e8164f | bellard | tb->jmp_next[1] = NULL; |
1286 | d4e8164f | bellard | |
1287 | d4e8164f | bellard | /* init original jump addresses */
|
1288 | d4e8164f | bellard | if (tb->tb_next_offset[0] != 0xffff) |
1289 | d4e8164f | bellard | tb_reset_jump(tb, 0);
|
1290 | d4e8164f | bellard | if (tb->tb_next_offset[1] != 0xffff) |
1291 | d4e8164f | bellard | tb_reset_jump(tb, 1);
|
1292 | 8a40a180 | bellard | |
1293 | 8a40a180 | bellard | #ifdef DEBUG_TB_CHECK
|
1294 | 8a40a180 | bellard | tb_page_check(); |
1295 | 8a40a180 | bellard | #endif
|
1296 | c8a706fe | pbrook | mmap_unlock(); |
1297 | fd6ce8f6 | bellard | } |
1298 | fd6ce8f6 | bellard | |
1299 | 9fa3e853 | bellard | /* find the TB 'tb' such that tb[0].tc_ptr <= tc_ptr <
|
1300 | 9fa3e853 | bellard | tb[1].tc_ptr. Return NULL if not found */
|
1301 | 9fa3e853 | bellard | TranslationBlock *tb_find_pc(unsigned long tc_ptr) |
1302 | fd6ce8f6 | bellard | { |
1303 | 9fa3e853 | bellard | int m_min, m_max, m;
|
1304 | 9fa3e853 | bellard | unsigned long v; |
1305 | 9fa3e853 | bellard | TranslationBlock *tb; |
1306 | a513fe19 | bellard | |
1307 | a513fe19 | bellard | if (nb_tbs <= 0) |
1308 | a513fe19 | bellard | return NULL; |
1309 | a513fe19 | bellard | if (tc_ptr < (unsigned long)code_gen_buffer || |
1310 | a513fe19 | bellard | tc_ptr >= (unsigned long)code_gen_ptr) |
1311 | a513fe19 | bellard | return NULL; |
1312 | a513fe19 | bellard | /* binary search (cf Knuth) */
|
1313 | a513fe19 | bellard | m_min = 0;
|
1314 | a513fe19 | bellard | m_max = nb_tbs - 1;
|
1315 | a513fe19 | bellard | while (m_min <= m_max) {
|
1316 | a513fe19 | bellard | m = (m_min + m_max) >> 1;
|
1317 | a513fe19 | bellard | tb = &tbs[m]; |
1318 | a513fe19 | bellard | v = (unsigned long)tb->tc_ptr; |
1319 | a513fe19 | bellard | if (v == tc_ptr)
|
1320 | a513fe19 | bellard | return tb;
|
1321 | a513fe19 | bellard | else if (tc_ptr < v) { |
1322 | a513fe19 | bellard | m_max = m - 1;
|
1323 | a513fe19 | bellard | } else {
|
1324 | a513fe19 | bellard | m_min = m + 1;
|
1325 | a513fe19 | bellard | } |
1326 | 5fafdf24 | ths | } |
1327 | a513fe19 | bellard | return &tbs[m_max];
|
1328 | a513fe19 | bellard | } |
1329 | 7501267e | bellard | |
1330 | ea041c0e | bellard | static void tb_reset_jump_recursive(TranslationBlock *tb); |
1331 | ea041c0e | bellard | |
1332 | ea041c0e | bellard | static inline void tb_reset_jump_recursive2(TranslationBlock *tb, int n) |
1333 | ea041c0e | bellard | { |
1334 | ea041c0e | bellard | TranslationBlock *tb1, *tb_next, **ptb; |
1335 | ea041c0e | bellard | unsigned int n1; |
1336 | ea041c0e | bellard | |
1337 | ea041c0e | bellard | tb1 = tb->jmp_next[n]; |
1338 | ea041c0e | bellard | if (tb1 != NULL) { |
1339 | ea041c0e | bellard | /* find head of list */
|
1340 | ea041c0e | bellard | for(;;) {
|
1341 | ea041c0e | bellard | n1 = (long)tb1 & 3; |
1342 | ea041c0e | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
1343 | ea041c0e | bellard | if (n1 == 2) |
1344 | ea041c0e | bellard | break;
|
1345 | ea041c0e | bellard | tb1 = tb1->jmp_next[n1]; |
1346 | ea041c0e | bellard | } |
1347 | ea041c0e | bellard | /* we are now sure now that tb jumps to tb1 */
|
1348 | ea041c0e | bellard | tb_next = tb1; |
1349 | ea041c0e | bellard | |
1350 | ea041c0e | bellard | /* remove tb from the jmp_first list */
|
1351 | ea041c0e | bellard | ptb = &tb_next->jmp_first; |
1352 | ea041c0e | bellard | for(;;) {
|
1353 | ea041c0e | bellard | tb1 = *ptb; |
1354 | ea041c0e | bellard | n1 = (long)tb1 & 3; |
1355 | ea041c0e | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
1356 | ea041c0e | bellard | if (n1 == n && tb1 == tb)
|
1357 | ea041c0e | bellard | break;
|
1358 | ea041c0e | bellard | ptb = &tb1->jmp_next[n1]; |
1359 | ea041c0e | bellard | } |
1360 | ea041c0e | bellard | *ptb = tb->jmp_next[n]; |
1361 | ea041c0e | bellard | tb->jmp_next[n] = NULL;
|
1362 | 3b46e624 | ths | |
1363 | ea041c0e | bellard | /* suppress the jump to next tb in generated code */
|
1364 | ea041c0e | bellard | tb_reset_jump(tb, n); |
1365 | ea041c0e | bellard | |
1366 | 0124311e | bellard | /* suppress jumps in the tb on which we could have jumped */
|
1367 | ea041c0e | bellard | tb_reset_jump_recursive(tb_next); |
1368 | ea041c0e | bellard | } |
1369 | ea041c0e | bellard | } |
1370 | ea041c0e | bellard | |
1371 | ea041c0e | bellard | static void tb_reset_jump_recursive(TranslationBlock *tb) |
1372 | ea041c0e | bellard | { |
1373 | ea041c0e | bellard | tb_reset_jump_recursive2(tb, 0);
|
1374 | ea041c0e | bellard | tb_reset_jump_recursive2(tb, 1);
|
1375 | ea041c0e | bellard | } |
1376 | ea041c0e | bellard | |
1377 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1378 | 94df27fd | Paul Brook | #if defined(CONFIG_USER_ONLY)
|
1379 | 94df27fd | Paul Brook | static void breakpoint_invalidate(CPUState *env, target_ulong pc) |
1380 | 94df27fd | Paul Brook | { |
1381 | 94df27fd | Paul Brook | tb_invalidate_phys_page_range(pc, pc + 1, 0); |
1382 | 94df27fd | Paul Brook | } |
1383 | 94df27fd | Paul Brook | #else
|
1384 | d720b93d | bellard | static void breakpoint_invalidate(CPUState *env, target_ulong pc) |
1385 | d720b93d | bellard | { |
1386 | c227f099 | Anthony Liguori | target_phys_addr_t addr; |
1387 | 9b3c35e0 | j_mayer | target_ulong pd; |
1388 | c227f099 | Anthony Liguori | ram_addr_t ram_addr; |
1389 | c2f07f81 | pbrook | PhysPageDesc *p; |
1390 | d720b93d | bellard | |
1391 | c2f07f81 | pbrook | addr = cpu_get_phys_page_debug(env, pc); |
1392 | c2f07f81 | pbrook | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
1393 | c2f07f81 | pbrook | if (!p) {
|
1394 | c2f07f81 | pbrook | pd = IO_MEM_UNASSIGNED; |
1395 | c2f07f81 | pbrook | } else {
|
1396 | c2f07f81 | pbrook | pd = p->phys_offset; |
1397 | c2f07f81 | pbrook | } |
1398 | c2f07f81 | pbrook | ram_addr = (pd & TARGET_PAGE_MASK) | (pc & ~TARGET_PAGE_MASK); |
1399 | 706cd4b5 | pbrook | tb_invalidate_phys_page_range(ram_addr, ram_addr + 1, 0); |
1400 | d720b93d | bellard | } |
1401 | c27004ec | bellard | #endif
|
1402 | 94df27fd | Paul Brook | #endif /* TARGET_HAS_ICE */ |
1403 | d720b93d | bellard | |
1404 | c527ee8f | Paul Brook | #if defined(CONFIG_USER_ONLY)
|
1405 | c527ee8f | Paul Brook | void cpu_watchpoint_remove_all(CPUState *env, int mask) |
1406 | c527ee8f | Paul Brook | |
1407 | c527ee8f | Paul Brook | { |
1408 | c527ee8f | Paul Brook | } |
1409 | c527ee8f | Paul Brook | |
1410 | c527ee8f | Paul Brook | int cpu_watchpoint_insert(CPUState *env, target_ulong addr, target_ulong len,
|
1411 | c527ee8f | Paul Brook | int flags, CPUWatchpoint **watchpoint)
|
1412 | c527ee8f | Paul Brook | { |
1413 | c527ee8f | Paul Brook | return -ENOSYS;
|
1414 | c527ee8f | Paul Brook | } |
1415 | c527ee8f | Paul Brook | #else
|
1416 | 6658ffb8 | pbrook | /* Add a watchpoint. */
|
1417 | a1d1bb31 | aliguori | int cpu_watchpoint_insert(CPUState *env, target_ulong addr, target_ulong len,
|
1418 | a1d1bb31 | aliguori | int flags, CPUWatchpoint **watchpoint)
|
1419 | 6658ffb8 | pbrook | { |
1420 | b4051334 | aliguori | target_ulong len_mask = ~(len - 1);
|
1421 | c0ce998e | aliguori | CPUWatchpoint *wp; |
1422 | 6658ffb8 | pbrook | |
1423 | b4051334 | aliguori | /* sanity checks: allow power-of-2 lengths, deny unaligned watchpoints */
|
1424 | b4051334 | aliguori | if ((len != 1 && len != 2 && len != 4 && len != 8) || (addr & ~len_mask)) { |
1425 | b4051334 | aliguori | fprintf(stderr, "qemu: tried to set invalid watchpoint at "
|
1426 | b4051334 | aliguori | TARGET_FMT_lx ", len=" TARGET_FMT_lu "\n", addr, len); |
1427 | b4051334 | aliguori | return -EINVAL;
|
1428 | b4051334 | aliguori | } |
1429 | a1d1bb31 | aliguori | wp = qemu_malloc(sizeof(*wp));
|
1430 | a1d1bb31 | aliguori | |
1431 | a1d1bb31 | aliguori | wp->vaddr = addr; |
1432 | b4051334 | aliguori | wp->len_mask = len_mask; |
1433 | a1d1bb31 | aliguori | wp->flags = flags; |
1434 | a1d1bb31 | aliguori | |
1435 | 2dc9f411 | aliguori | /* keep all GDB-injected watchpoints in front */
|
1436 | c0ce998e | aliguori | if (flags & BP_GDB)
|
1437 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_HEAD(&env->watchpoints, wp, entry); |
1438 | c0ce998e | aliguori | else
|
1439 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&env->watchpoints, wp, entry); |
1440 | 6658ffb8 | pbrook | |
1441 | 6658ffb8 | pbrook | tlb_flush_page(env, addr); |
1442 | a1d1bb31 | aliguori | |
1443 | a1d1bb31 | aliguori | if (watchpoint)
|
1444 | a1d1bb31 | aliguori | *watchpoint = wp; |
1445 | a1d1bb31 | aliguori | return 0; |
1446 | 6658ffb8 | pbrook | } |
1447 | 6658ffb8 | pbrook | |
1448 | a1d1bb31 | aliguori | /* Remove a specific watchpoint. */
|
1449 | a1d1bb31 | aliguori | int cpu_watchpoint_remove(CPUState *env, target_ulong addr, target_ulong len,
|
1450 | a1d1bb31 | aliguori | int flags)
|
1451 | 6658ffb8 | pbrook | { |
1452 | b4051334 | aliguori | target_ulong len_mask = ~(len - 1);
|
1453 | a1d1bb31 | aliguori | CPUWatchpoint *wp; |
1454 | 6658ffb8 | pbrook | |
1455 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
1456 | b4051334 | aliguori | if (addr == wp->vaddr && len_mask == wp->len_mask
|
1457 | 6e140f28 | aliguori | && flags == (wp->flags & ~BP_WATCHPOINT_HIT)) { |
1458 | a1d1bb31 | aliguori | cpu_watchpoint_remove_by_ref(env, wp); |
1459 | 6658ffb8 | pbrook | return 0; |
1460 | 6658ffb8 | pbrook | } |
1461 | 6658ffb8 | pbrook | } |
1462 | a1d1bb31 | aliguori | return -ENOENT;
|
1463 | 6658ffb8 | pbrook | } |
1464 | 6658ffb8 | pbrook | |
1465 | a1d1bb31 | aliguori | /* Remove a specific watchpoint by reference. */
|
1466 | a1d1bb31 | aliguori | void cpu_watchpoint_remove_by_ref(CPUState *env, CPUWatchpoint *watchpoint)
|
1467 | a1d1bb31 | aliguori | { |
1468 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&env->watchpoints, watchpoint, entry); |
1469 | 7d03f82f | edgar_igl | |
1470 | a1d1bb31 | aliguori | tlb_flush_page(env, watchpoint->vaddr); |
1471 | a1d1bb31 | aliguori | |
1472 | a1d1bb31 | aliguori | qemu_free(watchpoint); |
1473 | a1d1bb31 | aliguori | } |
1474 | a1d1bb31 | aliguori | |
1475 | a1d1bb31 | aliguori | /* Remove all matching watchpoints. */
|
1476 | a1d1bb31 | aliguori | void cpu_watchpoint_remove_all(CPUState *env, int mask) |
1477 | a1d1bb31 | aliguori | { |
1478 | c0ce998e | aliguori | CPUWatchpoint *wp, *next; |
1479 | a1d1bb31 | aliguori | |
1480 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH_SAFE(wp, &env->watchpoints, entry, next) { |
1481 | a1d1bb31 | aliguori | if (wp->flags & mask)
|
1482 | a1d1bb31 | aliguori | cpu_watchpoint_remove_by_ref(env, wp); |
1483 | c0ce998e | aliguori | } |
1484 | 7d03f82f | edgar_igl | } |
1485 | c527ee8f | Paul Brook | #endif
|
1486 | 7d03f82f | edgar_igl | |
1487 | a1d1bb31 | aliguori | /* Add a breakpoint. */
|
1488 | a1d1bb31 | aliguori | int cpu_breakpoint_insert(CPUState *env, target_ulong pc, int flags, |
1489 | a1d1bb31 | aliguori | CPUBreakpoint **breakpoint) |
1490 | 4c3a88a2 | bellard | { |
1491 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1492 | c0ce998e | aliguori | CPUBreakpoint *bp; |
1493 | 3b46e624 | ths | |
1494 | a1d1bb31 | aliguori | bp = qemu_malloc(sizeof(*bp));
|
1495 | 4c3a88a2 | bellard | |
1496 | a1d1bb31 | aliguori | bp->pc = pc; |
1497 | a1d1bb31 | aliguori | bp->flags = flags; |
1498 | a1d1bb31 | aliguori | |
1499 | 2dc9f411 | aliguori | /* keep all GDB-injected breakpoints in front */
|
1500 | c0ce998e | aliguori | if (flags & BP_GDB)
|
1501 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_HEAD(&env->breakpoints, bp, entry); |
1502 | c0ce998e | aliguori | else
|
1503 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&env->breakpoints, bp, entry); |
1504 | 3b46e624 | ths | |
1505 | d720b93d | bellard | breakpoint_invalidate(env, pc); |
1506 | a1d1bb31 | aliguori | |
1507 | a1d1bb31 | aliguori | if (breakpoint)
|
1508 | a1d1bb31 | aliguori | *breakpoint = bp; |
1509 | 4c3a88a2 | bellard | return 0; |
1510 | 4c3a88a2 | bellard | #else
|
1511 | a1d1bb31 | aliguori | return -ENOSYS;
|
1512 | 4c3a88a2 | bellard | #endif
|
1513 | 4c3a88a2 | bellard | } |
1514 | 4c3a88a2 | bellard | |
1515 | a1d1bb31 | aliguori | /* Remove a specific breakpoint. */
|
1516 | a1d1bb31 | aliguori | int cpu_breakpoint_remove(CPUState *env, target_ulong pc, int flags) |
1517 | a1d1bb31 | aliguori | { |
1518 | 7d03f82f | edgar_igl | #if defined(TARGET_HAS_ICE)
|
1519 | a1d1bb31 | aliguori | CPUBreakpoint *bp; |
1520 | a1d1bb31 | aliguori | |
1521 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
1522 | a1d1bb31 | aliguori | if (bp->pc == pc && bp->flags == flags) {
|
1523 | a1d1bb31 | aliguori | cpu_breakpoint_remove_by_ref(env, bp); |
1524 | a1d1bb31 | aliguori | return 0; |
1525 | a1d1bb31 | aliguori | } |
1526 | 7d03f82f | edgar_igl | } |
1527 | a1d1bb31 | aliguori | return -ENOENT;
|
1528 | a1d1bb31 | aliguori | #else
|
1529 | a1d1bb31 | aliguori | return -ENOSYS;
|
1530 | 7d03f82f | edgar_igl | #endif
|
1531 | 7d03f82f | edgar_igl | } |
1532 | 7d03f82f | edgar_igl | |
1533 | a1d1bb31 | aliguori | /* Remove a specific breakpoint by reference. */
|
1534 | a1d1bb31 | aliguori | void cpu_breakpoint_remove_by_ref(CPUState *env, CPUBreakpoint *breakpoint)
|
1535 | 4c3a88a2 | bellard | { |
1536 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1537 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&env->breakpoints, breakpoint, entry); |
1538 | d720b93d | bellard | |
1539 | a1d1bb31 | aliguori | breakpoint_invalidate(env, breakpoint->pc); |
1540 | a1d1bb31 | aliguori | |
1541 | a1d1bb31 | aliguori | qemu_free(breakpoint); |
1542 | a1d1bb31 | aliguori | #endif
|
1543 | a1d1bb31 | aliguori | } |
1544 | a1d1bb31 | aliguori | |
1545 | a1d1bb31 | aliguori | /* Remove all matching breakpoints. */
|
1546 | a1d1bb31 | aliguori | void cpu_breakpoint_remove_all(CPUState *env, int mask) |
1547 | a1d1bb31 | aliguori | { |
1548 | a1d1bb31 | aliguori | #if defined(TARGET_HAS_ICE)
|
1549 | c0ce998e | aliguori | CPUBreakpoint *bp, *next; |
1550 | a1d1bb31 | aliguori | |
1551 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH_SAFE(bp, &env->breakpoints, entry, next) { |
1552 | a1d1bb31 | aliguori | if (bp->flags & mask)
|
1553 | a1d1bb31 | aliguori | cpu_breakpoint_remove_by_ref(env, bp); |
1554 | c0ce998e | aliguori | } |
1555 | 4c3a88a2 | bellard | #endif
|
1556 | 4c3a88a2 | bellard | } |
1557 | 4c3a88a2 | bellard | |
1558 | c33a346e | bellard | /* enable or disable single step mode. EXCP_DEBUG is returned by the
|
1559 | c33a346e | bellard | CPU loop after each instruction */
|
1560 | c33a346e | bellard | void cpu_single_step(CPUState *env, int enabled) |
1561 | c33a346e | bellard | { |
1562 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1563 | c33a346e | bellard | if (env->singlestep_enabled != enabled) {
|
1564 | c33a346e | bellard | env->singlestep_enabled = enabled; |
1565 | e22a25c9 | aliguori | if (kvm_enabled())
|
1566 | e22a25c9 | aliguori | kvm_update_guest_debug(env, 0);
|
1567 | e22a25c9 | aliguori | else {
|
1568 | ccbb4d44 | Stuart Brady | /* must flush all the translated code to avoid inconsistencies */
|
1569 | e22a25c9 | aliguori | /* XXX: only flush what is necessary */
|
1570 | e22a25c9 | aliguori | tb_flush(env); |
1571 | e22a25c9 | aliguori | } |
1572 | c33a346e | bellard | } |
1573 | c33a346e | bellard | #endif
|
1574 | c33a346e | bellard | } |
1575 | c33a346e | bellard | |
1576 | 34865134 | bellard | /* enable or disable low levels log */
|
1577 | 34865134 | bellard | void cpu_set_log(int log_flags) |
1578 | 34865134 | bellard | { |
1579 | 34865134 | bellard | loglevel = log_flags; |
1580 | 34865134 | bellard | if (loglevel && !logfile) {
|
1581 | 11fcfab4 | pbrook | logfile = fopen(logfilename, log_append ? "a" : "w"); |
1582 | 34865134 | bellard | if (!logfile) {
|
1583 | 34865134 | bellard | perror(logfilename); |
1584 | 34865134 | bellard | _exit(1);
|
1585 | 34865134 | bellard | } |
1586 | 9fa3e853 | bellard | #if !defined(CONFIG_SOFTMMU)
|
1587 | 9fa3e853 | bellard | /* must avoid mmap() usage of glibc by setting a buffer "by hand" */
|
1588 | 9fa3e853 | bellard | { |
1589 | b55266b5 | blueswir1 | static char logfile_buf[4096]; |
1590 | 9fa3e853 | bellard | setvbuf(logfile, logfile_buf, _IOLBF, sizeof(logfile_buf));
|
1591 | 9fa3e853 | bellard | } |
1592 | bf65f53f | Filip Navara | #elif !defined(_WIN32)
|
1593 | bf65f53f | Filip Navara | /* Win32 doesn't support line-buffering and requires size >= 2 */
|
1594 | 34865134 | bellard | setvbuf(logfile, NULL, _IOLBF, 0); |
1595 | 9fa3e853 | bellard | #endif
|
1596 | e735b91c | pbrook | log_append = 1;
|
1597 | e735b91c | pbrook | } |
1598 | e735b91c | pbrook | if (!loglevel && logfile) {
|
1599 | e735b91c | pbrook | fclose(logfile); |
1600 | e735b91c | pbrook | logfile = NULL;
|
1601 | 34865134 | bellard | } |
1602 | 34865134 | bellard | } |
1603 | 34865134 | bellard | |
1604 | 34865134 | bellard | void cpu_set_log_filename(const char *filename) |
1605 | 34865134 | bellard | { |
1606 | 34865134 | bellard | logfilename = strdup(filename); |
1607 | e735b91c | pbrook | if (logfile) {
|
1608 | e735b91c | pbrook | fclose(logfile); |
1609 | e735b91c | pbrook | logfile = NULL;
|
1610 | e735b91c | pbrook | } |
1611 | e735b91c | pbrook | cpu_set_log(loglevel); |
1612 | 34865134 | bellard | } |
1613 | c33a346e | bellard | |
1614 | 3098dba0 | aurel32 | static void cpu_unlink_tb(CPUState *env) |
1615 | ea041c0e | bellard | { |
1616 | 3098dba0 | aurel32 | /* FIXME: TB unchaining isn't SMP safe. For now just ignore the
|
1617 | 3098dba0 | aurel32 | problem and hope the cpu will stop of its own accord. For userspace
|
1618 | 3098dba0 | aurel32 | emulation this often isn't actually as bad as it sounds. Often
|
1619 | 3098dba0 | aurel32 | signals are used primarily to interrupt blocking syscalls. */
|
1620 | ea041c0e | bellard | TranslationBlock *tb; |
1621 | c227f099 | Anthony Liguori | static spinlock_t interrupt_lock = SPIN_LOCK_UNLOCKED;
|
1622 | 59817ccb | bellard | |
1623 | cab1b4bd | Riku Voipio | spin_lock(&interrupt_lock); |
1624 | 3098dba0 | aurel32 | tb = env->current_tb; |
1625 | 3098dba0 | aurel32 | /* if the cpu is currently executing code, we must unlink it and
|
1626 | 3098dba0 | aurel32 | all the potentially executing TB */
|
1627 | f76cfe56 | Riku Voipio | if (tb) {
|
1628 | 3098dba0 | aurel32 | env->current_tb = NULL;
|
1629 | 3098dba0 | aurel32 | tb_reset_jump_recursive(tb); |
1630 | be214e6c | aurel32 | } |
1631 | cab1b4bd | Riku Voipio | spin_unlock(&interrupt_lock); |
1632 | 3098dba0 | aurel32 | } |
1633 | 3098dba0 | aurel32 | |
1634 | 97ffbd8d | Jan Kiszka | #ifndef CONFIG_USER_ONLY
|
1635 | 3098dba0 | aurel32 | /* mask must never be zero, except for A20 change call */
|
1636 | ec6959d0 | Jan Kiszka | static void tcg_handle_interrupt(CPUState *env, int mask) |
1637 | 3098dba0 | aurel32 | { |
1638 | 3098dba0 | aurel32 | int old_mask;
|
1639 | be214e6c | aurel32 | |
1640 | 2e70f6ef | pbrook | old_mask = env->interrupt_request; |
1641 | 68a79315 | bellard | env->interrupt_request |= mask; |
1642 | 3098dba0 | aurel32 | |
1643 | 8edac960 | aliguori | /*
|
1644 | 8edac960 | aliguori | * If called from iothread context, wake the target cpu in
|
1645 | 8edac960 | aliguori | * case its halted.
|
1646 | 8edac960 | aliguori | */
|
1647 | b7680cb6 | Jan Kiszka | if (!qemu_cpu_is_self(env)) {
|
1648 | 8edac960 | aliguori | qemu_cpu_kick(env); |
1649 | 8edac960 | aliguori | return;
|
1650 | 8edac960 | aliguori | } |
1651 | 8edac960 | aliguori | |
1652 | 2e70f6ef | pbrook | if (use_icount) {
|
1653 | 266910c4 | pbrook | env->icount_decr.u16.high = 0xffff;
|
1654 | 2e70f6ef | pbrook | if (!can_do_io(env)
|
1655 | be214e6c | aurel32 | && (mask & ~old_mask) != 0) {
|
1656 | 2e70f6ef | pbrook | cpu_abort(env, "Raised interrupt while not in I/O function");
|
1657 | 2e70f6ef | pbrook | } |
1658 | 2e70f6ef | pbrook | } else {
|
1659 | 3098dba0 | aurel32 | cpu_unlink_tb(env); |
1660 | ea041c0e | bellard | } |
1661 | ea041c0e | bellard | } |
1662 | ea041c0e | bellard | |
1663 | ec6959d0 | Jan Kiszka | CPUInterruptHandler cpu_interrupt_handler = tcg_handle_interrupt; |
1664 | ec6959d0 | Jan Kiszka | |
1665 | 97ffbd8d | Jan Kiszka | #else /* CONFIG_USER_ONLY */ |
1666 | 97ffbd8d | Jan Kiszka | |
1667 | 97ffbd8d | Jan Kiszka | void cpu_interrupt(CPUState *env, int mask) |
1668 | 97ffbd8d | Jan Kiszka | { |
1669 | 97ffbd8d | Jan Kiszka | env->interrupt_request |= mask; |
1670 | 97ffbd8d | Jan Kiszka | cpu_unlink_tb(env); |
1671 | 97ffbd8d | Jan Kiszka | } |
1672 | 97ffbd8d | Jan Kiszka | #endif /* CONFIG_USER_ONLY */ |
1673 | 97ffbd8d | Jan Kiszka | |
1674 | b54ad049 | bellard | void cpu_reset_interrupt(CPUState *env, int mask) |
1675 | b54ad049 | bellard | { |
1676 | b54ad049 | bellard | env->interrupt_request &= ~mask; |
1677 | b54ad049 | bellard | } |
1678 | b54ad049 | bellard | |
1679 | 3098dba0 | aurel32 | void cpu_exit(CPUState *env)
|
1680 | 3098dba0 | aurel32 | { |
1681 | 3098dba0 | aurel32 | env->exit_request = 1;
|
1682 | 3098dba0 | aurel32 | cpu_unlink_tb(env); |
1683 | 3098dba0 | aurel32 | } |
1684 | 3098dba0 | aurel32 | |
1685 | c7cd6a37 | blueswir1 | const CPULogItem cpu_log_items[] = {
|
1686 | 5fafdf24 | ths | { CPU_LOG_TB_OUT_ASM, "out_asm",
|
1687 | f193c797 | bellard | "show generated host assembly code for each compiled TB" },
|
1688 | f193c797 | bellard | { CPU_LOG_TB_IN_ASM, "in_asm",
|
1689 | f193c797 | bellard | "show target assembly code for each compiled TB" },
|
1690 | 5fafdf24 | ths | { CPU_LOG_TB_OP, "op",
|
1691 | 57fec1fe | bellard | "show micro ops for each compiled TB" },
|
1692 | f193c797 | bellard | { CPU_LOG_TB_OP_OPT, "op_opt",
|
1693 | e01a1157 | blueswir1 | "show micro ops "
|
1694 | e01a1157 | blueswir1 | #ifdef TARGET_I386
|
1695 | e01a1157 | blueswir1 | "before eflags optimization and "
|
1696 | f193c797 | bellard | #endif
|
1697 | e01a1157 | blueswir1 | "after liveness analysis" },
|
1698 | f193c797 | bellard | { CPU_LOG_INT, "int",
|
1699 | f193c797 | bellard | "show interrupts/exceptions in short format" },
|
1700 | f193c797 | bellard | { CPU_LOG_EXEC, "exec",
|
1701 | f193c797 | bellard | "show trace before each executed TB (lots of logs)" },
|
1702 | 9fddaa0c | bellard | { CPU_LOG_TB_CPU, "cpu",
|
1703 | e91c8a77 | ths | "show CPU state before block translation" },
|
1704 | f193c797 | bellard | #ifdef TARGET_I386
|
1705 | f193c797 | bellard | { CPU_LOG_PCALL, "pcall",
|
1706 | f193c797 | bellard | "show protected mode far calls/returns/exceptions" },
|
1707 | eca1bdf4 | aliguori | { CPU_LOG_RESET, "cpu_reset",
|
1708 | eca1bdf4 | aliguori | "show CPU state before CPU resets" },
|
1709 | f193c797 | bellard | #endif
|
1710 | 8e3a9fd2 | bellard | #ifdef DEBUG_IOPORT
|
1711 | fd872598 | bellard | { CPU_LOG_IOPORT, "ioport",
|
1712 | fd872598 | bellard | "show all i/o ports accesses" },
|
1713 | 8e3a9fd2 | bellard | #endif
|
1714 | f193c797 | bellard | { 0, NULL, NULL }, |
1715 | f193c797 | bellard | }; |
1716 | f193c797 | bellard | |
1717 | f6f3fbca | Michael S. Tsirkin | #ifndef CONFIG_USER_ONLY
|
1718 | f6f3fbca | Michael S. Tsirkin | static QLIST_HEAD(memory_client_list, CPUPhysMemoryClient) memory_client_list
|
1719 | f6f3fbca | Michael S. Tsirkin | = QLIST_HEAD_INITIALIZER(memory_client_list); |
1720 | f6f3fbca | Michael S. Tsirkin | |
1721 | f6f3fbca | Michael S. Tsirkin | static void cpu_notify_set_memory(target_phys_addr_t start_addr, |
1722 | 9742bf26 | Yoshiaki Tamura | ram_addr_t size, |
1723 | 0fd542fb | Michael S. Tsirkin | ram_addr_t phys_offset, |
1724 | 0fd542fb | Michael S. Tsirkin | bool log_dirty)
|
1725 | f6f3fbca | Michael S. Tsirkin | { |
1726 | f6f3fbca | Michael S. Tsirkin | CPUPhysMemoryClient *client; |
1727 | f6f3fbca | Michael S. Tsirkin | QLIST_FOREACH(client, &memory_client_list, list) { |
1728 | 0fd542fb | Michael S. Tsirkin | client->set_memory(client, start_addr, size, phys_offset, log_dirty); |
1729 | f6f3fbca | Michael S. Tsirkin | } |
1730 | f6f3fbca | Michael S. Tsirkin | } |
1731 | f6f3fbca | Michael S. Tsirkin | |
1732 | f6f3fbca | Michael S. Tsirkin | static int cpu_notify_sync_dirty_bitmap(target_phys_addr_t start, |
1733 | 9742bf26 | Yoshiaki Tamura | target_phys_addr_t end) |
1734 | f6f3fbca | Michael S. Tsirkin | { |
1735 | f6f3fbca | Michael S. Tsirkin | CPUPhysMemoryClient *client; |
1736 | f6f3fbca | Michael S. Tsirkin | QLIST_FOREACH(client, &memory_client_list, list) { |
1737 | f6f3fbca | Michael S. Tsirkin | int r = client->sync_dirty_bitmap(client, start, end);
|
1738 | f6f3fbca | Michael S. Tsirkin | if (r < 0) |
1739 | f6f3fbca | Michael S. Tsirkin | return r;
|
1740 | f6f3fbca | Michael S. Tsirkin | } |
1741 | f6f3fbca | Michael S. Tsirkin | return 0; |
1742 | f6f3fbca | Michael S. Tsirkin | } |
1743 | f6f3fbca | Michael S. Tsirkin | |
1744 | f6f3fbca | Michael S. Tsirkin | static int cpu_notify_migration_log(int enable) |
1745 | f6f3fbca | Michael S. Tsirkin | { |
1746 | f6f3fbca | Michael S. Tsirkin | CPUPhysMemoryClient *client; |
1747 | f6f3fbca | Michael S. Tsirkin | QLIST_FOREACH(client, &memory_client_list, list) { |
1748 | f6f3fbca | Michael S. Tsirkin | int r = client->migration_log(client, enable);
|
1749 | f6f3fbca | Michael S. Tsirkin | if (r < 0) |
1750 | f6f3fbca | Michael S. Tsirkin | return r;
|
1751 | f6f3fbca | Michael S. Tsirkin | } |
1752 | f6f3fbca | Michael S. Tsirkin | return 0; |
1753 | f6f3fbca | Michael S. Tsirkin | } |
1754 | f6f3fbca | Michael S. Tsirkin | |
1755 | 8d4c78e7 | Alex Williamson | /* The l1_phys_map provides the upper P_L1_BITs of the guest physical
|
1756 | 8d4c78e7 | Alex Williamson | * address. Each intermediate table provides the next L2_BITs of guest
|
1757 | 8d4c78e7 | Alex Williamson | * physical address space. The number of levels vary based on host and
|
1758 | 8d4c78e7 | Alex Williamson | * guest configuration, making it efficient to build the final guest
|
1759 | 8d4c78e7 | Alex Williamson | * physical address by seeding the L1 offset and shifting and adding in
|
1760 | 8d4c78e7 | Alex Williamson | * each L2 offset as we recurse through them. */
|
1761 | 5cd2c5b6 | Richard Henderson | static void phys_page_for_each_1(CPUPhysMemoryClient *client, |
1762 | 8d4c78e7 | Alex Williamson | int level, void **lp, target_phys_addr_t addr) |
1763 | f6f3fbca | Michael S. Tsirkin | { |
1764 | 5cd2c5b6 | Richard Henderson | int i;
|
1765 | f6f3fbca | Michael S. Tsirkin | |
1766 | 5cd2c5b6 | Richard Henderson | if (*lp == NULL) { |
1767 | 5cd2c5b6 | Richard Henderson | return;
|
1768 | 5cd2c5b6 | Richard Henderson | } |
1769 | 5cd2c5b6 | Richard Henderson | if (level == 0) { |
1770 | 5cd2c5b6 | Richard Henderson | PhysPageDesc *pd = *lp; |
1771 | 8d4c78e7 | Alex Williamson | addr <<= L2_BITS + TARGET_PAGE_BITS; |
1772 | 7296abac | Paul Brook | for (i = 0; i < L2_SIZE; ++i) { |
1773 | 5cd2c5b6 | Richard Henderson | if (pd[i].phys_offset != IO_MEM_UNASSIGNED) {
|
1774 | 8d4c78e7 | Alex Williamson | client->set_memory(client, addr | i << TARGET_PAGE_BITS, |
1775 | 0fd542fb | Michael S. Tsirkin | TARGET_PAGE_SIZE, pd[i].phys_offset, false);
|
1776 | f6f3fbca | Michael S. Tsirkin | } |
1777 | 5cd2c5b6 | Richard Henderson | } |
1778 | 5cd2c5b6 | Richard Henderson | } else {
|
1779 | 5cd2c5b6 | Richard Henderson | void **pp = *lp;
|
1780 | 7296abac | Paul Brook | for (i = 0; i < L2_SIZE; ++i) { |
1781 | 8d4c78e7 | Alex Williamson | phys_page_for_each_1(client, level - 1, pp + i,
|
1782 | 8d4c78e7 | Alex Williamson | (addr << L2_BITS) | i); |
1783 | f6f3fbca | Michael S. Tsirkin | } |
1784 | f6f3fbca | Michael S. Tsirkin | } |
1785 | f6f3fbca | Michael S. Tsirkin | } |
1786 | f6f3fbca | Michael S. Tsirkin | |
1787 | f6f3fbca | Michael S. Tsirkin | static void phys_page_for_each(CPUPhysMemoryClient *client) |
1788 | f6f3fbca | Michael S. Tsirkin | { |
1789 | 5cd2c5b6 | Richard Henderson | int i;
|
1790 | 5cd2c5b6 | Richard Henderson | for (i = 0; i < P_L1_SIZE; ++i) { |
1791 | 5cd2c5b6 | Richard Henderson | phys_page_for_each_1(client, P_L1_SHIFT / L2_BITS - 1,
|
1792 | 8d4c78e7 | Alex Williamson | l1_phys_map + i, i); |
1793 | f6f3fbca | Michael S. Tsirkin | } |
1794 | f6f3fbca | Michael S. Tsirkin | } |
1795 | f6f3fbca | Michael S. Tsirkin | |
1796 | f6f3fbca | Michael S. Tsirkin | void cpu_register_phys_memory_client(CPUPhysMemoryClient *client)
|
1797 | f6f3fbca | Michael S. Tsirkin | { |
1798 | f6f3fbca | Michael S. Tsirkin | QLIST_INSERT_HEAD(&memory_client_list, client, list); |
1799 | f6f3fbca | Michael S. Tsirkin | phys_page_for_each(client); |
1800 | f6f3fbca | Michael S. Tsirkin | } |
1801 | f6f3fbca | Michael S. Tsirkin | |
1802 | f6f3fbca | Michael S. Tsirkin | void cpu_unregister_phys_memory_client(CPUPhysMemoryClient *client)
|
1803 | f6f3fbca | Michael S. Tsirkin | { |
1804 | f6f3fbca | Michael S. Tsirkin | QLIST_REMOVE(client, list); |
1805 | f6f3fbca | Michael S. Tsirkin | } |
1806 | f6f3fbca | Michael S. Tsirkin | #endif
|
1807 | f6f3fbca | Michael S. Tsirkin | |
1808 | f193c797 | bellard | static int cmp1(const char *s1, int n, const char *s2) |
1809 | f193c797 | bellard | { |
1810 | f193c797 | bellard | if (strlen(s2) != n)
|
1811 | f193c797 | bellard | return 0; |
1812 | f193c797 | bellard | return memcmp(s1, s2, n) == 0; |
1813 | f193c797 | bellard | } |
1814 | 3b46e624 | ths | |
1815 | f193c797 | bellard | /* takes a comma separated list of log masks. Return 0 if error. */
|
1816 | f193c797 | bellard | int cpu_str_to_log_mask(const char *str) |
1817 | f193c797 | bellard | { |
1818 | c7cd6a37 | blueswir1 | const CPULogItem *item;
|
1819 | f193c797 | bellard | int mask;
|
1820 | f193c797 | bellard | const char *p, *p1; |
1821 | f193c797 | bellard | |
1822 | f193c797 | bellard | p = str; |
1823 | f193c797 | bellard | mask = 0;
|
1824 | f193c797 | bellard | for(;;) {
|
1825 | f193c797 | bellard | p1 = strchr(p, ',');
|
1826 | f193c797 | bellard | if (!p1)
|
1827 | f193c797 | bellard | p1 = p + strlen(p); |
1828 | 9742bf26 | Yoshiaki Tamura | if(cmp1(p,p1-p,"all")) { |
1829 | 9742bf26 | Yoshiaki Tamura | for(item = cpu_log_items; item->mask != 0; item++) { |
1830 | 9742bf26 | Yoshiaki Tamura | mask |= item->mask; |
1831 | 9742bf26 | Yoshiaki Tamura | } |
1832 | 9742bf26 | Yoshiaki Tamura | } else {
|
1833 | 9742bf26 | Yoshiaki Tamura | for(item = cpu_log_items; item->mask != 0; item++) { |
1834 | 9742bf26 | Yoshiaki Tamura | if (cmp1(p, p1 - p, item->name))
|
1835 | 9742bf26 | Yoshiaki Tamura | goto found;
|
1836 | 9742bf26 | Yoshiaki Tamura | } |
1837 | 9742bf26 | Yoshiaki Tamura | return 0; |
1838 | f193c797 | bellard | } |
1839 | f193c797 | bellard | found:
|
1840 | f193c797 | bellard | mask |= item->mask; |
1841 | f193c797 | bellard | if (*p1 != ',') |
1842 | f193c797 | bellard | break;
|
1843 | f193c797 | bellard | p = p1 + 1;
|
1844 | f193c797 | bellard | } |
1845 | f193c797 | bellard | return mask;
|
1846 | f193c797 | bellard | } |
1847 | ea041c0e | bellard | |
1848 | 7501267e | bellard | void cpu_abort(CPUState *env, const char *fmt, ...) |
1849 | 7501267e | bellard | { |
1850 | 7501267e | bellard | va_list ap; |
1851 | 493ae1f0 | pbrook | va_list ap2; |
1852 | 7501267e | bellard | |
1853 | 7501267e | bellard | va_start(ap, fmt); |
1854 | 493ae1f0 | pbrook | va_copy(ap2, ap); |
1855 | 7501267e | bellard | fprintf(stderr, "qemu: fatal: ");
|
1856 | 7501267e | bellard | vfprintf(stderr, fmt, ap); |
1857 | 7501267e | bellard | fprintf(stderr, "\n");
|
1858 | 7501267e | bellard | #ifdef TARGET_I386
|
1859 | 7fe48483 | bellard | cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU | X86_DUMP_CCOP); |
1860 | 7fe48483 | bellard | #else
|
1861 | 7fe48483 | bellard | cpu_dump_state(env, stderr, fprintf, 0);
|
1862 | 7501267e | bellard | #endif
|
1863 | 93fcfe39 | aliguori | if (qemu_log_enabled()) {
|
1864 | 93fcfe39 | aliguori | qemu_log("qemu: fatal: ");
|
1865 | 93fcfe39 | aliguori | qemu_log_vprintf(fmt, ap2); |
1866 | 93fcfe39 | aliguori | qemu_log("\n");
|
1867 | f9373291 | j_mayer | #ifdef TARGET_I386
|
1868 | 93fcfe39 | aliguori | log_cpu_state(env, X86_DUMP_FPU | X86_DUMP_CCOP); |
1869 | f9373291 | j_mayer | #else
|
1870 | 93fcfe39 | aliguori | log_cpu_state(env, 0);
|
1871 | f9373291 | j_mayer | #endif
|
1872 | 31b1a7b4 | aliguori | qemu_log_flush(); |
1873 | 93fcfe39 | aliguori | qemu_log_close(); |
1874 | 924edcae | balrog | } |
1875 | 493ae1f0 | pbrook | va_end(ap2); |
1876 | f9373291 | j_mayer | va_end(ap); |
1877 | fd052bf6 | Riku Voipio | #if defined(CONFIG_USER_ONLY)
|
1878 | fd052bf6 | Riku Voipio | { |
1879 | fd052bf6 | Riku Voipio | struct sigaction act;
|
1880 | fd052bf6 | Riku Voipio | sigfillset(&act.sa_mask); |
1881 | fd052bf6 | Riku Voipio | act.sa_handler = SIG_DFL; |
1882 | fd052bf6 | Riku Voipio | sigaction(SIGABRT, &act, NULL);
|
1883 | fd052bf6 | Riku Voipio | } |
1884 | fd052bf6 | Riku Voipio | #endif
|
1885 | 7501267e | bellard | abort(); |
1886 | 7501267e | bellard | } |
1887 | 7501267e | bellard | |
1888 | c5be9f08 | ths | CPUState *cpu_copy(CPUState *env) |
1889 | c5be9f08 | ths | { |
1890 | 01ba9816 | ths | CPUState *new_env = cpu_init(env->cpu_model_str); |
1891 | c5be9f08 | ths | CPUState *next_cpu = new_env->next_cpu; |
1892 | c5be9f08 | ths | int cpu_index = new_env->cpu_index;
|
1893 | 5a38f081 | aliguori | #if defined(TARGET_HAS_ICE)
|
1894 | 5a38f081 | aliguori | CPUBreakpoint *bp; |
1895 | 5a38f081 | aliguori | CPUWatchpoint *wp; |
1896 | 5a38f081 | aliguori | #endif
|
1897 | 5a38f081 | aliguori | |
1898 | c5be9f08 | ths | memcpy(new_env, env, sizeof(CPUState));
|
1899 | 5a38f081 | aliguori | |
1900 | 5a38f081 | aliguori | /* Preserve chaining and index. */
|
1901 | c5be9f08 | ths | new_env->next_cpu = next_cpu; |
1902 | c5be9f08 | ths | new_env->cpu_index = cpu_index; |
1903 | 5a38f081 | aliguori | |
1904 | 5a38f081 | aliguori | /* Clone all break/watchpoints.
|
1905 | 5a38f081 | aliguori | Note: Once we support ptrace with hw-debug register access, make sure
|
1906 | 5a38f081 | aliguori | BP_CPU break/watchpoints are handled correctly on clone. */
|
1907 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->breakpoints); |
1908 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->watchpoints); |
1909 | 5a38f081 | aliguori | #if defined(TARGET_HAS_ICE)
|
1910 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
1911 | 5a38f081 | aliguori | cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL);
|
1912 | 5a38f081 | aliguori | } |
1913 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
1914 | 5a38f081 | aliguori | cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1,
|
1915 | 5a38f081 | aliguori | wp->flags, NULL);
|
1916 | 5a38f081 | aliguori | } |
1917 | 5a38f081 | aliguori | #endif
|
1918 | 5a38f081 | aliguori | |
1919 | c5be9f08 | ths | return new_env;
|
1920 | c5be9f08 | ths | } |
1921 | c5be9f08 | ths | |
1922 | 0124311e | bellard | #if !defined(CONFIG_USER_ONLY)
|
1923 | 0124311e | bellard | |
1924 | 5c751e99 | edgar_igl | static inline void tlb_flush_jmp_cache(CPUState *env, target_ulong addr) |
1925 | 5c751e99 | edgar_igl | { |
1926 | 5c751e99 | edgar_igl | unsigned int i; |
1927 | 5c751e99 | edgar_igl | |
1928 | 5c751e99 | edgar_igl | /* Discard jump cache entries for any tb which might potentially
|
1929 | 5c751e99 | edgar_igl | overlap the flushed page. */
|
1930 | 5c751e99 | edgar_igl | i = tb_jmp_cache_hash_page(addr - TARGET_PAGE_SIZE); |
1931 | 5c751e99 | edgar_igl | memset (&env->tb_jmp_cache[i], 0,
|
1932 | 9742bf26 | Yoshiaki Tamura | TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *));
|
1933 | 5c751e99 | edgar_igl | |
1934 | 5c751e99 | edgar_igl | i = tb_jmp_cache_hash_page(addr); |
1935 | 5c751e99 | edgar_igl | memset (&env->tb_jmp_cache[i], 0,
|
1936 | 9742bf26 | Yoshiaki Tamura | TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *));
|
1937 | 5c751e99 | edgar_igl | } |
1938 | 5c751e99 | edgar_igl | |
1939 | 08738984 | Igor Kovalenko | static CPUTLBEntry s_cputlb_empty_entry = {
|
1940 | 08738984 | Igor Kovalenko | .addr_read = -1,
|
1941 | 08738984 | Igor Kovalenko | .addr_write = -1,
|
1942 | 08738984 | Igor Kovalenko | .addr_code = -1,
|
1943 | 08738984 | Igor Kovalenko | .addend = -1,
|
1944 | 08738984 | Igor Kovalenko | }; |
1945 | 08738984 | Igor Kovalenko | |
1946 | ee8b7021 | bellard | /* NOTE: if flush_global is true, also flush global entries (not
|
1947 | ee8b7021 | bellard | implemented yet) */
|
1948 | ee8b7021 | bellard | void tlb_flush(CPUState *env, int flush_global) |
1949 | 33417e70 | bellard | { |
1950 | 33417e70 | bellard | int i;
|
1951 | 0124311e | bellard | |
1952 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
1953 | 9fa3e853 | bellard | printf("tlb_flush:\n");
|
1954 | 9fa3e853 | bellard | #endif
|
1955 | 0124311e | bellard | /* must reset current TB so that interrupts cannot modify the
|
1956 | 0124311e | bellard | links while we are modifying them */
|
1957 | 0124311e | bellard | env->current_tb = NULL;
|
1958 | 0124311e | bellard | |
1959 | 33417e70 | bellard | for(i = 0; i < CPU_TLB_SIZE; i++) { |
1960 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
1961 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
1962 | 08738984 | Igor Kovalenko | env->tlb_table[mmu_idx][i] = s_cputlb_empty_entry; |
1963 | cfde4bd9 | Isaku Yamahata | } |
1964 | 33417e70 | bellard | } |
1965 | 9fa3e853 | bellard | |
1966 | 8a40a180 | bellard | memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *)); |
1967 | 9fa3e853 | bellard | |
1968 | d4c430a8 | Paul Brook | env->tlb_flush_addr = -1;
|
1969 | d4c430a8 | Paul Brook | env->tlb_flush_mask = 0;
|
1970 | e3db7226 | bellard | tlb_flush_count++; |
1971 | 33417e70 | bellard | } |
1972 | 33417e70 | bellard | |
1973 | 274da6b2 | bellard | static inline void tlb_flush_entry(CPUTLBEntry *tlb_entry, target_ulong addr) |
1974 | 61382a50 | bellard | { |
1975 | 5fafdf24 | ths | if (addr == (tlb_entry->addr_read &
|
1976 | 84b7b8e7 | bellard | (TARGET_PAGE_MASK | TLB_INVALID_MASK)) || |
1977 | 5fafdf24 | ths | addr == (tlb_entry->addr_write & |
1978 | 84b7b8e7 | bellard | (TARGET_PAGE_MASK | TLB_INVALID_MASK)) || |
1979 | 5fafdf24 | ths | addr == (tlb_entry->addr_code & |
1980 | 84b7b8e7 | bellard | (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { |
1981 | 08738984 | Igor Kovalenko | *tlb_entry = s_cputlb_empty_entry; |
1982 | 84b7b8e7 | bellard | } |
1983 | 61382a50 | bellard | } |
1984 | 61382a50 | bellard | |
1985 | 2e12669a | bellard | void tlb_flush_page(CPUState *env, target_ulong addr)
|
1986 | 33417e70 | bellard | { |
1987 | 8a40a180 | bellard | int i;
|
1988 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
1989 | 0124311e | bellard | |
1990 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
1991 | 108c49b8 | bellard | printf("tlb_flush_page: " TARGET_FMT_lx "\n", addr); |
1992 | 9fa3e853 | bellard | #endif
|
1993 | d4c430a8 | Paul Brook | /* Check if we need to flush due to large pages. */
|
1994 | d4c430a8 | Paul Brook | if ((addr & env->tlb_flush_mask) == env->tlb_flush_addr) {
|
1995 | d4c430a8 | Paul Brook | #if defined(DEBUG_TLB)
|
1996 | d4c430a8 | Paul Brook | printf("tlb_flush_page: forced full flush ("
|
1997 | d4c430a8 | Paul Brook | TARGET_FMT_lx "/" TARGET_FMT_lx ")\n", |
1998 | d4c430a8 | Paul Brook | env->tlb_flush_addr, env->tlb_flush_mask); |
1999 | d4c430a8 | Paul Brook | #endif
|
2000 | d4c430a8 | Paul Brook | tlb_flush(env, 1);
|
2001 | d4c430a8 | Paul Brook | return;
|
2002 | d4c430a8 | Paul Brook | } |
2003 | 0124311e | bellard | /* must reset current TB so that interrupts cannot modify the
|
2004 | 0124311e | bellard | links while we are modifying them */
|
2005 | 0124311e | bellard | env->current_tb = NULL;
|
2006 | 61382a50 | bellard | |
2007 | 61382a50 | bellard | addr &= TARGET_PAGE_MASK; |
2008 | 61382a50 | bellard | i = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
2009 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) |
2010 | cfde4bd9 | Isaku Yamahata | tlb_flush_entry(&env->tlb_table[mmu_idx][i], addr); |
2011 | 0124311e | bellard | |
2012 | 5c751e99 | edgar_igl | tlb_flush_jmp_cache(env, addr); |
2013 | 9fa3e853 | bellard | } |
2014 | 9fa3e853 | bellard | |
2015 | 9fa3e853 | bellard | /* update the TLBs so that writes to code in the virtual page 'addr'
|
2016 | 9fa3e853 | bellard | can be detected */
|
2017 | c227f099 | Anthony Liguori | static void tlb_protect_code(ram_addr_t ram_addr) |
2018 | 9fa3e853 | bellard | { |
2019 | 5fafdf24 | ths | cpu_physical_memory_reset_dirty(ram_addr, |
2020 | 6a00d601 | bellard | ram_addr + TARGET_PAGE_SIZE, |
2021 | 6a00d601 | bellard | CODE_DIRTY_FLAG); |
2022 | 9fa3e853 | bellard | } |
2023 | 9fa3e853 | bellard | |
2024 | 9fa3e853 | bellard | /* update the TLB so that writes in physical page 'phys_addr' are no longer
|
2025 | 3a7d929e | bellard | tested for self modifying code */
|
2026 | c227f099 | Anthony Liguori | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, |
2027 | 3a7d929e | bellard | target_ulong vaddr) |
2028 | 9fa3e853 | bellard | { |
2029 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags(ram_addr, CODE_DIRTY_FLAG); |
2030 | 1ccde1cb | bellard | } |
2031 | 1ccde1cb | bellard | |
2032 | 5fafdf24 | ths | static inline void tlb_reset_dirty_range(CPUTLBEntry *tlb_entry, |
2033 | 1ccde1cb | bellard | unsigned long start, unsigned long length) |
2034 | 1ccde1cb | bellard | { |
2035 | 1ccde1cb | bellard | unsigned long addr; |
2036 | 84b7b8e7 | bellard | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) {
|
2037 | 84b7b8e7 | bellard | addr = (tlb_entry->addr_write & TARGET_PAGE_MASK) + tlb_entry->addend; |
2038 | 1ccde1cb | bellard | if ((addr - start) < length) {
|
2039 | 0f459d16 | pbrook | tlb_entry->addr_write = (tlb_entry->addr_write & TARGET_PAGE_MASK) | TLB_NOTDIRTY; |
2040 | 1ccde1cb | bellard | } |
2041 | 1ccde1cb | bellard | } |
2042 | 1ccde1cb | bellard | } |
2043 | 1ccde1cb | bellard | |
2044 | 5579c7f3 | pbrook | /* Note: start and end must be within the same ram block. */
|
2045 | c227f099 | Anthony Liguori | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,
|
2046 | 0a962c02 | bellard | int dirty_flags)
|
2047 | 1ccde1cb | bellard | { |
2048 | 1ccde1cb | bellard | CPUState *env; |
2049 | 4f2ac237 | bellard | unsigned long length, start1; |
2050 | f7c11b53 | Yoshiaki Tamura | int i;
|
2051 | 1ccde1cb | bellard | |
2052 | 1ccde1cb | bellard | start &= TARGET_PAGE_MASK; |
2053 | 1ccde1cb | bellard | end = TARGET_PAGE_ALIGN(end); |
2054 | 1ccde1cb | bellard | |
2055 | 1ccde1cb | bellard | length = end - start; |
2056 | 1ccde1cb | bellard | if (length == 0) |
2057 | 1ccde1cb | bellard | return;
|
2058 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_mask_dirty_range(start, length, dirty_flags); |
2059 | f23db169 | bellard | |
2060 | 1ccde1cb | bellard | /* we modify the TLB cache so that the dirty bit will be set again
|
2061 | 1ccde1cb | bellard | when accessing the range */
|
2062 | b2e0a138 | Michael S. Tsirkin | start1 = (unsigned long)qemu_safe_ram_ptr(start); |
2063 | a57d23e4 | Stefan Weil | /* Check that we don't span multiple blocks - this breaks the
|
2064 | 5579c7f3 | pbrook | address comparisons below. */
|
2065 | b2e0a138 | Michael S. Tsirkin | if ((unsigned long)qemu_safe_ram_ptr(end - 1) - start1 |
2066 | 5579c7f3 | pbrook | != (end - 1) - start) {
|
2067 | 5579c7f3 | pbrook | abort(); |
2068 | 5579c7f3 | pbrook | } |
2069 | 5579c7f3 | pbrook | |
2070 | 6a00d601 | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
2071 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
2072 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
2073 | cfde4bd9 | Isaku Yamahata | for(i = 0; i < CPU_TLB_SIZE; i++) |
2074 | cfde4bd9 | Isaku Yamahata | tlb_reset_dirty_range(&env->tlb_table[mmu_idx][i], |
2075 | cfde4bd9 | Isaku Yamahata | start1, length); |
2076 | cfde4bd9 | Isaku Yamahata | } |
2077 | 6a00d601 | bellard | } |
2078 | 1ccde1cb | bellard | } |
2079 | 1ccde1cb | bellard | |
2080 | 74576198 | aliguori | int cpu_physical_memory_set_dirty_tracking(int enable) |
2081 | 74576198 | aliguori | { |
2082 | f6f3fbca | Michael S. Tsirkin | int ret = 0; |
2083 | 74576198 | aliguori | in_migration = enable; |
2084 | f6f3fbca | Michael S. Tsirkin | ret = cpu_notify_migration_log(!!enable); |
2085 | f6f3fbca | Michael S. Tsirkin | return ret;
|
2086 | 74576198 | aliguori | } |
2087 | 74576198 | aliguori | |
2088 | 74576198 | aliguori | int cpu_physical_memory_get_dirty_tracking(void) |
2089 | 74576198 | aliguori | { |
2090 | 74576198 | aliguori | return in_migration;
|
2091 | 74576198 | aliguori | } |
2092 | 74576198 | aliguori | |
2093 | c227f099 | Anthony Liguori | int cpu_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
|
2094 | c227f099 | Anthony Liguori | target_phys_addr_t end_addr) |
2095 | 2bec46dc | aliguori | { |
2096 | 7b8f3b78 | Michael S. Tsirkin | int ret;
|
2097 | 151f7749 | Jan Kiszka | |
2098 | f6f3fbca | Michael S. Tsirkin | ret = cpu_notify_sync_dirty_bitmap(start_addr, end_addr); |
2099 | 151f7749 | Jan Kiszka | return ret;
|
2100 | 2bec46dc | aliguori | } |
2101 | 2bec46dc | aliguori | |
2102 | e5896b12 | Anthony PERARD | int cpu_physical_log_start(target_phys_addr_t start_addr,
|
2103 | e5896b12 | Anthony PERARD | ram_addr_t size) |
2104 | e5896b12 | Anthony PERARD | { |
2105 | e5896b12 | Anthony PERARD | CPUPhysMemoryClient *client; |
2106 | e5896b12 | Anthony PERARD | QLIST_FOREACH(client, &memory_client_list, list) { |
2107 | e5896b12 | Anthony PERARD | if (client->log_start) {
|
2108 | e5896b12 | Anthony PERARD | int r = client->log_start(client, start_addr, size);
|
2109 | e5896b12 | Anthony PERARD | if (r < 0) { |
2110 | e5896b12 | Anthony PERARD | return r;
|
2111 | e5896b12 | Anthony PERARD | } |
2112 | e5896b12 | Anthony PERARD | } |
2113 | e5896b12 | Anthony PERARD | } |
2114 | e5896b12 | Anthony PERARD | return 0; |
2115 | e5896b12 | Anthony PERARD | } |
2116 | e5896b12 | Anthony PERARD | |
2117 | e5896b12 | Anthony PERARD | int cpu_physical_log_stop(target_phys_addr_t start_addr,
|
2118 | e5896b12 | Anthony PERARD | ram_addr_t size) |
2119 | e5896b12 | Anthony PERARD | { |
2120 | e5896b12 | Anthony PERARD | CPUPhysMemoryClient *client; |
2121 | e5896b12 | Anthony PERARD | QLIST_FOREACH(client, &memory_client_list, list) { |
2122 | e5896b12 | Anthony PERARD | if (client->log_stop) {
|
2123 | e5896b12 | Anthony PERARD | int r = client->log_stop(client, start_addr, size);
|
2124 | e5896b12 | Anthony PERARD | if (r < 0) { |
2125 | e5896b12 | Anthony PERARD | return r;
|
2126 | e5896b12 | Anthony PERARD | } |
2127 | e5896b12 | Anthony PERARD | } |
2128 | e5896b12 | Anthony PERARD | } |
2129 | e5896b12 | Anthony PERARD | return 0; |
2130 | e5896b12 | Anthony PERARD | } |
2131 | e5896b12 | Anthony PERARD | |
2132 | 3a7d929e | bellard | static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry) |
2133 | 3a7d929e | bellard | { |
2134 | c227f099 | Anthony Liguori | ram_addr_t ram_addr; |
2135 | 5579c7f3 | pbrook | void *p;
|
2136 | 3a7d929e | bellard | |
2137 | 84b7b8e7 | bellard | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) {
|
2138 | 5579c7f3 | pbrook | p = (void *)(unsigned long)((tlb_entry->addr_write & TARGET_PAGE_MASK) |
2139 | 5579c7f3 | pbrook | + tlb_entry->addend); |
2140 | e890261f | Marcelo Tosatti | ram_addr = qemu_ram_addr_from_host_nofail(p); |
2141 | 3a7d929e | bellard | if (!cpu_physical_memory_is_dirty(ram_addr)) {
|
2142 | 0f459d16 | pbrook | tlb_entry->addr_write |= TLB_NOTDIRTY; |
2143 | 3a7d929e | bellard | } |
2144 | 3a7d929e | bellard | } |
2145 | 3a7d929e | bellard | } |
2146 | 3a7d929e | bellard | |
2147 | 3a7d929e | bellard | /* update the TLB according to the current state of the dirty bits */
|
2148 | 3a7d929e | bellard | void cpu_tlb_update_dirty(CPUState *env)
|
2149 | 3a7d929e | bellard | { |
2150 | 3a7d929e | bellard | int i;
|
2151 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
2152 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
2153 | cfde4bd9 | Isaku Yamahata | for(i = 0; i < CPU_TLB_SIZE; i++) |
2154 | cfde4bd9 | Isaku Yamahata | tlb_update_dirty(&env->tlb_table[mmu_idx][i]); |
2155 | cfde4bd9 | Isaku Yamahata | } |
2156 | 3a7d929e | bellard | } |
2157 | 3a7d929e | bellard | |
2158 | 0f459d16 | pbrook | static inline void tlb_set_dirty1(CPUTLBEntry *tlb_entry, target_ulong vaddr) |
2159 | 1ccde1cb | bellard | { |
2160 | 0f459d16 | pbrook | if (tlb_entry->addr_write == (vaddr | TLB_NOTDIRTY))
|
2161 | 0f459d16 | pbrook | tlb_entry->addr_write = vaddr; |
2162 | 1ccde1cb | bellard | } |
2163 | 1ccde1cb | bellard | |
2164 | 0f459d16 | pbrook | /* update the TLB corresponding to virtual page vaddr
|
2165 | 0f459d16 | pbrook | so that it is no longer dirty */
|
2166 | 0f459d16 | pbrook | static inline void tlb_set_dirty(CPUState *env, target_ulong vaddr) |
2167 | 1ccde1cb | bellard | { |
2168 | 1ccde1cb | bellard | int i;
|
2169 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
2170 | 1ccde1cb | bellard | |
2171 | 0f459d16 | pbrook | vaddr &= TARGET_PAGE_MASK; |
2172 | 1ccde1cb | bellard | i = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
2173 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) |
2174 | cfde4bd9 | Isaku Yamahata | tlb_set_dirty1(&env->tlb_table[mmu_idx][i], vaddr); |
2175 | 9fa3e853 | bellard | } |
2176 | 9fa3e853 | bellard | |
2177 | d4c430a8 | Paul Brook | /* Our TLB does not support large pages, so remember the area covered by
|
2178 | d4c430a8 | Paul Brook | large pages and trigger a full TLB flush if these are invalidated. */
|
2179 | d4c430a8 | Paul Brook | static void tlb_add_large_page(CPUState *env, target_ulong vaddr, |
2180 | d4c430a8 | Paul Brook | target_ulong size) |
2181 | d4c430a8 | Paul Brook | { |
2182 | d4c430a8 | Paul Brook | target_ulong mask = ~(size - 1);
|
2183 | d4c430a8 | Paul Brook | |
2184 | d4c430a8 | Paul Brook | if (env->tlb_flush_addr == (target_ulong)-1) { |
2185 | d4c430a8 | Paul Brook | env->tlb_flush_addr = vaddr & mask; |
2186 | d4c430a8 | Paul Brook | env->tlb_flush_mask = mask; |
2187 | d4c430a8 | Paul Brook | return;
|
2188 | d4c430a8 | Paul Brook | } |
2189 | d4c430a8 | Paul Brook | /* Extend the existing region to include the new page.
|
2190 | d4c430a8 | Paul Brook | This is a compromise between unnecessary flushes and the cost
|
2191 | d4c430a8 | Paul Brook | of maintaining a full variable size TLB. */
|
2192 | d4c430a8 | Paul Brook | mask &= env->tlb_flush_mask; |
2193 | d4c430a8 | Paul Brook | while (((env->tlb_flush_addr ^ vaddr) & mask) != 0) { |
2194 | d4c430a8 | Paul Brook | mask <<= 1;
|
2195 | d4c430a8 | Paul Brook | } |
2196 | d4c430a8 | Paul Brook | env->tlb_flush_addr &= mask; |
2197 | d4c430a8 | Paul Brook | env->tlb_flush_mask = mask; |
2198 | d4c430a8 | Paul Brook | } |
2199 | d4c430a8 | Paul Brook | |
2200 | d4c430a8 | Paul Brook | /* Add a new TLB entry. At most one entry for a given virtual address
|
2201 | d4c430a8 | Paul Brook | is permitted. Only a single TARGET_PAGE_SIZE region is mapped, the
|
2202 | d4c430a8 | Paul Brook | supplied size is only used by tlb_flush_page. */
|
2203 | d4c430a8 | Paul Brook | void tlb_set_page(CPUState *env, target_ulong vaddr,
|
2204 | d4c430a8 | Paul Brook | target_phys_addr_t paddr, int prot,
|
2205 | d4c430a8 | Paul Brook | int mmu_idx, target_ulong size)
|
2206 | 9fa3e853 | bellard | { |
2207 | 92e873b9 | bellard | PhysPageDesc *p; |
2208 | 4f2ac237 | bellard | unsigned long pd; |
2209 | 9fa3e853 | bellard | unsigned int index; |
2210 | 4f2ac237 | bellard | target_ulong address; |
2211 | 0f459d16 | pbrook | target_ulong code_address; |
2212 | 355b1943 | Paul Brook | unsigned long addend; |
2213 | 84b7b8e7 | bellard | CPUTLBEntry *te; |
2214 | a1d1bb31 | aliguori | CPUWatchpoint *wp; |
2215 | c227f099 | Anthony Liguori | target_phys_addr_t iotlb; |
2216 | 9fa3e853 | bellard | |
2217 | d4c430a8 | Paul Brook | assert(size >= TARGET_PAGE_SIZE); |
2218 | d4c430a8 | Paul Brook | if (size != TARGET_PAGE_SIZE) {
|
2219 | d4c430a8 | Paul Brook | tlb_add_large_page(env, vaddr, size); |
2220 | d4c430a8 | Paul Brook | } |
2221 | 92e873b9 | bellard | p = phys_page_find(paddr >> TARGET_PAGE_BITS); |
2222 | 9fa3e853 | bellard | if (!p) {
|
2223 | 9fa3e853 | bellard | pd = IO_MEM_UNASSIGNED; |
2224 | 9fa3e853 | bellard | } else {
|
2225 | 9fa3e853 | bellard | pd = p->phys_offset; |
2226 | 9fa3e853 | bellard | } |
2227 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
2228 | 7fd3f494 | Stefan Weil | printf("tlb_set_page: vaddr=" TARGET_FMT_lx " paddr=0x" TARGET_FMT_plx |
2229 | 7fd3f494 | Stefan Weil | " prot=%x idx=%d pd=0x%08lx\n",
|
2230 | 7fd3f494 | Stefan Weil | vaddr, paddr, prot, mmu_idx, pd); |
2231 | 9fa3e853 | bellard | #endif
|
2232 | 9fa3e853 | bellard | |
2233 | 0f459d16 | pbrook | address = vaddr; |
2234 | 0f459d16 | pbrook | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) {
|
2235 | 0f459d16 | pbrook | /* IO memory case (romd handled later) */
|
2236 | 0f459d16 | pbrook | address |= TLB_MMIO; |
2237 | 0f459d16 | pbrook | } |
2238 | 5579c7f3 | pbrook | addend = (unsigned long)qemu_get_ram_ptr(pd & TARGET_PAGE_MASK); |
2239 | 0f459d16 | pbrook | if ((pd & ~TARGET_PAGE_MASK) <= IO_MEM_ROM) {
|
2240 | 0f459d16 | pbrook | /* Normal RAM. */
|
2241 | 0f459d16 | pbrook | iotlb = pd & TARGET_PAGE_MASK; |
2242 | 0f459d16 | pbrook | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM)
|
2243 | 0f459d16 | pbrook | iotlb |= IO_MEM_NOTDIRTY; |
2244 | 0f459d16 | pbrook | else
|
2245 | 0f459d16 | pbrook | iotlb |= IO_MEM_ROM; |
2246 | 0f459d16 | pbrook | } else {
|
2247 | ccbb4d44 | Stuart Brady | /* IO handlers are currently passed a physical address.
|
2248 | 0f459d16 | pbrook | It would be nice to pass an offset from the base address
|
2249 | 0f459d16 | pbrook | of that region. This would avoid having to special case RAM,
|
2250 | 0f459d16 | pbrook | and avoid full address decoding in every device.
|
2251 | 0f459d16 | pbrook | We can't use the high bits of pd for this because
|
2252 | 0f459d16 | pbrook | IO_MEM_ROMD uses these as a ram address. */
|
2253 | 8da3ff18 | pbrook | iotlb = (pd & ~TARGET_PAGE_MASK); |
2254 | 8da3ff18 | pbrook | if (p) {
|
2255 | 8da3ff18 | pbrook | iotlb += p->region_offset; |
2256 | 8da3ff18 | pbrook | } else {
|
2257 | 8da3ff18 | pbrook | iotlb += paddr; |
2258 | 8da3ff18 | pbrook | } |
2259 | 0f459d16 | pbrook | } |
2260 | 0f459d16 | pbrook | |
2261 | 0f459d16 | pbrook | code_address = address; |
2262 | 0f459d16 | pbrook | /* Make accesses to pages with watchpoints go via the
|
2263 | 0f459d16 | pbrook | watchpoint trap routines. */
|
2264 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
2265 | a1d1bb31 | aliguori | if (vaddr == (wp->vaddr & TARGET_PAGE_MASK)) {
|
2266 | bf298f83 | Jun Koi | /* Avoid trapping reads of pages with a write breakpoint. */
|
2267 | bf298f83 | Jun Koi | if ((prot & PAGE_WRITE) || (wp->flags & BP_MEM_READ)) {
|
2268 | bf298f83 | Jun Koi | iotlb = io_mem_watch + paddr; |
2269 | bf298f83 | Jun Koi | address |= TLB_MMIO; |
2270 | bf298f83 | Jun Koi | break;
|
2271 | bf298f83 | Jun Koi | } |
2272 | 6658ffb8 | pbrook | } |
2273 | 0f459d16 | pbrook | } |
2274 | d79acba4 | balrog | |
2275 | 0f459d16 | pbrook | index = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
2276 | 0f459d16 | pbrook | env->iotlb[mmu_idx][index] = iotlb - vaddr; |
2277 | 0f459d16 | pbrook | te = &env->tlb_table[mmu_idx][index]; |
2278 | 0f459d16 | pbrook | te->addend = addend - vaddr; |
2279 | 0f459d16 | pbrook | if (prot & PAGE_READ) {
|
2280 | 0f459d16 | pbrook | te->addr_read = address; |
2281 | 0f459d16 | pbrook | } else {
|
2282 | 0f459d16 | pbrook | te->addr_read = -1;
|
2283 | 0f459d16 | pbrook | } |
2284 | 5c751e99 | edgar_igl | |
2285 | 0f459d16 | pbrook | if (prot & PAGE_EXEC) {
|
2286 | 0f459d16 | pbrook | te->addr_code = code_address; |
2287 | 0f459d16 | pbrook | } else {
|
2288 | 0f459d16 | pbrook | te->addr_code = -1;
|
2289 | 0f459d16 | pbrook | } |
2290 | 0f459d16 | pbrook | if (prot & PAGE_WRITE) {
|
2291 | 0f459d16 | pbrook | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_ROM ||
|
2292 | 0f459d16 | pbrook | (pd & IO_MEM_ROMD)) { |
2293 | 0f459d16 | pbrook | /* Write access calls the I/O callback. */
|
2294 | 0f459d16 | pbrook | te->addr_write = address | TLB_MMIO; |
2295 | 0f459d16 | pbrook | } else if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM && |
2296 | 0f459d16 | pbrook | !cpu_physical_memory_is_dirty(pd)) { |
2297 | 0f459d16 | pbrook | te->addr_write = address | TLB_NOTDIRTY; |
2298 | 9fa3e853 | bellard | } else {
|
2299 | 0f459d16 | pbrook | te->addr_write = address; |
2300 | 9fa3e853 | bellard | } |
2301 | 0f459d16 | pbrook | } else {
|
2302 | 0f459d16 | pbrook | te->addr_write = -1;
|
2303 | 9fa3e853 | bellard | } |
2304 | 9fa3e853 | bellard | } |
2305 | 9fa3e853 | bellard | |
2306 | 0124311e | bellard | #else
|
2307 | 0124311e | bellard | |
2308 | ee8b7021 | bellard | void tlb_flush(CPUState *env, int flush_global) |
2309 | 0124311e | bellard | { |
2310 | 0124311e | bellard | } |
2311 | 0124311e | bellard | |
2312 | 2e12669a | bellard | void tlb_flush_page(CPUState *env, target_ulong addr)
|
2313 | 0124311e | bellard | { |
2314 | 0124311e | bellard | } |
2315 | 0124311e | bellard | |
2316 | edf8e2af | Mika Westerberg | /*
|
2317 | edf8e2af | Mika Westerberg | * Walks guest process memory "regions" one by one
|
2318 | edf8e2af | Mika Westerberg | * and calls callback function 'fn' for each region.
|
2319 | edf8e2af | Mika Westerberg | */
|
2320 | 5cd2c5b6 | Richard Henderson | |
2321 | 5cd2c5b6 | Richard Henderson | struct walk_memory_regions_data
|
2322 | 5cd2c5b6 | Richard Henderson | { |
2323 | 5cd2c5b6 | Richard Henderson | walk_memory_regions_fn fn; |
2324 | 5cd2c5b6 | Richard Henderson | void *priv;
|
2325 | 5cd2c5b6 | Richard Henderson | unsigned long start; |
2326 | 5cd2c5b6 | Richard Henderson | int prot;
|
2327 | 5cd2c5b6 | Richard Henderson | }; |
2328 | 5cd2c5b6 | Richard Henderson | |
2329 | 5cd2c5b6 | Richard Henderson | static int walk_memory_regions_end(struct walk_memory_regions_data *data, |
2330 | b480d9b7 | Paul Brook | abi_ulong end, int new_prot)
|
2331 | 5cd2c5b6 | Richard Henderson | { |
2332 | 5cd2c5b6 | Richard Henderson | if (data->start != -1ul) { |
2333 | 5cd2c5b6 | Richard Henderson | int rc = data->fn(data->priv, data->start, end, data->prot);
|
2334 | 5cd2c5b6 | Richard Henderson | if (rc != 0) { |
2335 | 5cd2c5b6 | Richard Henderson | return rc;
|
2336 | 5cd2c5b6 | Richard Henderson | } |
2337 | 5cd2c5b6 | Richard Henderson | } |
2338 | 5cd2c5b6 | Richard Henderson | |
2339 | 5cd2c5b6 | Richard Henderson | data->start = (new_prot ? end : -1ul);
|
2340 | 5cd2c5b6 | Richard Henderson | data->prot = new_prot; |
2341 | 5cd2c5b6 | Richard Henderson | |
2342 | 5cd2c5b6 | Richard Henderson | return 0; |
2343 | 5cd2c5b6 | Richard Henderson | } |
2344 | 5cd2c5b6 | Richard Henderson | |
2345 | 5cd2c5b6 | Richard Henderson | static int walk_memory_regions_1(struct walk_memory_regions_data *data, |
2346 | b480d9b7 | Paul Brook | abi_ulong base, int level, void **lp) |
2347 | 5cd2c5b6 | Richard Henderson | { |
2348 | b480d9b7 | Paul Brook | abi_ulong pa; |
2349 | 5cd2c5b6 | Richard Henderson | int i, rc;
|
2350 | 5cd2c5b6 | Richard Henderson | |
2351 | 5cd2c5b6 | Richard Henderson | if (*lp == NULL) { |
2352 | 5cd2c5b6 | Richard Henderson | return walk_memory_regions_end(data, base, 0); |
2353 | 5cd2c5b6 | Richard Henderson | } |
2354 | 5cd2c5b6 | Richard Henderson | |
2355 | 5cd2c5b6 | Richard Henderson | if (level == 0) { |
2356 | 5cd2c5b6 | Richard Henderson | PageDesc *pd = *lp; |
2357 | 7296abac | Paul Brook | for (i = 0; i < L2_SIZE; ++i) { |
2358 | 5cd2c5b6 | Richard Henderson | int prot = pd[i].flags;
|
2359 | 5cd2c5b6 | Richard Henderson | |
2360 | 5cd2c5b6 | Richard Henderson | pa = base | (i << TARGET_PAGE_BITS); |
2361 | 5cd2c5b6 | Richard Henderson | if (prot != data->prot) {
|
2362 | 5cd2c5b6 | Richard Henderson | rc = walk_memory_regions_end(data, pa, prot); |
2363 | 5cd2c5b6 | Richard Henderson | if (rc != 0) { |
2364 | 5cd2c5b6 | Richard Henderson | return rc;
|
2365 | 9fa3e853 | bellard | } |
2366 | 9fa3e853 | bellard | } |
2367 | 5cd2c5b6 | Richard Henderson | } |
2368 | 5cd2c5b6 | Richard Henderson | } else {
|
2369 | 5cd2c5b6 | Richard Henderson | void **pp = *lp;
|
2370 | 7296abac | Paul Brook | for (i = 0; i < L2_SIZE; ++i) { |
2371 | b480d9b7 | Paul Brook | pa = base | ((abi_ulong)i << |
2372 | b480d9b7 | Paul Brook | (TARGET_PAGE_BITS + L2_BITS * level)); |
2373 | 5cd2c5b6 | Richard Henderson | rc = walk_memory_regions_1(data, pa, level - 1, pp + i);
|
2374 | 5cd2c5b6 | Richard Henderson | if (rc != 0) { |
2375 | 5cd2c5b6 | Richard Henderson | return rc;
|
2376 | 5cd2c5b6 | Richard Henderson | } |
2377 | 5cd2c5b6 | Richard Henderson | } |
2378 | 5cd2c5b6 | Richard Henderson | } |
2379 | 5cd2c5b6 | Richard Henderson | |
2380 | 5cd2c5b6 | Richard Henderson | return 0; |
2381 | 5cd2c5b6 | Richard Henderson | } |
2382 | 5cd2c5b6 | Richard Henderson | |
2383 | 5cd2c5b6 | Richard Henderson | int walk_memory_regions(void *priv, walk_memory_regions_fn fn) |
2384 | 5cd2c5b6 | Richard Henderson | { |
2385 | 5cd2c5b6 | Richard Henderson | struct walk_memory_regions_data data;
|
2386 | 5cd2c5b6 | Richard Henderson | unsigned long i; |
2387 | 5cd2c5b6 | Richard Henderson | |
2388 | 5cd2c5b6 | Richard Henderson | data.fn = fn; |
2389 | 5cd2c5b6 | Richard Henderson | data.priv = priv; |
2390 | 5cd2c5b6 | Richard Henderson | data.start = -1ul;
|
2391 | 5cd2c5b6 | Richard Henderson | data.prot = 0;
|
2392 | 5cd2c5b6 | Richard Henderson | |
2393 | 5cd2c5b6 | Richard Henderson | for (i = 0; i < V_L1_SIZE; i++) { |
2394 | b480d9b7 | Paul Brook | int rc = walk_memory_regions_1(&data, (abi_ulong)i << V_L1_SHIFT,
|
2395 | 5cd2c5b6 | Richard Henderson | V_L1_SHIFT / L2_BITS - 1, l1_map + i);
|
2396 | 5cd2c5b6 | Richard Henderson | if (rc != 0) { |
2397 | 5cd2c5b6 | Richard Henderson | return rc;
|
2398 | 9fa3e853 | bellard | } |
2399 | 33417e70 | bellard | } |
2400 | 5cd2c5b6 | Richard Henderson | |
2401 | 5cd2c5b6 | Richard Henderson | return walk_memory_regions_end(&data, 0, 0); |
2402 | edf8e2af | Mika Westerberg | } |
2403 | edf8e2af | Mika Westerberg | |
2404 | b480d9b7 | Paul Brook | static int dump_region(void *priv, abi_ulong start, |
2405 | b480d9b7 | Paul Brook | abi_ulong end, unsigned long prot) |
2406 | edf8e2af | Mika Westerberg | { |
2407 | edf8e2af | Mika Westerberg | FILE *f = (FILE *)priv; |
2408 | edf8e2af | Mika Westerberg | |
2409 | b480d9b7 | Paul Brook | (void) fprintf(f, TARGET_ABI_FMT_lx"-"TARGET_ABI_FMT_lx |
2410 | b480d9b7 | Paul Brook | " "TARGET_ABI_FMT_lx" %c%c%c\n", |
2411 | edf8e2af | Mika Westerberg | start, end, end - start, |
2412 | edf8e2af | Mika Westerberg | ((prot & PAGE_READ) ? 'r' : '-'), |
2413 | edf8e2af | Mika Westerberg | ((prot & PAGE_WRITE) ? 'w' : '-'), |
2414 | edf8e2af | Mika Westerberg | ((prot & PAGE_EXEC) ? 'x' : '-')); |
2415 | edf8e2af | Mika Westerberg | |
2416 | edf8e2af | Mika Westerberg | return (0); |
2417 | edf8e2af | Mika Westerberg | } |
2418 | edf8e2af | Mika Westerberg | |
2419 | edf8e2af | Mika Westerberg | /* dump memory mappings */
|
2420 | edf8e2af | Mika Westerberg | void page_dump(FILE *f)
|
2421 | edf8e2af | Mika Westerberg | { |
2422 | edf8e2af | Mika Westerberg | (void) fprintf(f, "%-8s %-8s %-8s %s\n", |
2423 | edf8e2af | Mika Westerberg | "start", "end", "size", "prot"); |
2424 | edf8e2af | Mika Westerberg | walk_memory_regions(f, dump_region); |
2425 | 33417e70 | bellard | } |
2426 | 33417e70 | bellard | |
2427 | 53a5960a | pbrook | int page_get_flags(target_ulong address)
|
2428 | 33417e70 | bellard | { |
2429 | 9fa3e853 | bellard | PageDesc *p; |
2430 | 9fa3e853 | bellard | |
2431 | 9fa3e853 | bellard | p = page_find(address >> TARGET_PAGE_BITS); |
2432 | 33417e70 | bellard | if (!p)
|
2433 | 9fa3e853 | bellard | return 0; |
2434 | 9fa3e853 | bellard | return p->flags;
|
2435 | 9fa3e853 | bellard | } |
2436 | 9fa3e853 | bellard | |
2437 | 376a7909 | Richard Henderson | /* Modify the flags of a page and invalidate the code if necessary.
|
2438 | 376a7909 | Richard Henderson | The flag PAGE_WRITE_ORG is positioned automatically depending
|
2439 | 376a7909 | Richard Henderson | on PAGE_WRITE. The mmap_lock should already be held. */
|
2440 | 53a5960a | pbrook | void page_set_flags(target_ulong start, target_ulong end, int flags) |
2441 | 9fa3e853 | bellard | { |
2442 | 376a7909 | Richard Henderson | target_ulong addr, len; |
2443 | 376a7909 | Richard Henderson | |
2444 | 376a7909 | Richard Henderson | /* This function should never be called with addresses outside the
|
2445 | 376a7909 | Richard Henderson | guest address space. If this assert fires, it probably indicates
|
2446 | 376a7909 | Richard Henderson | a missing call to h2g_valid. */
|
2447 | b480d9b7 | Paul Brook | #if TARGET_ABI_BITS > L1_MAP_ADDR_SPACE_BITS
|
2448 | b480d9b7 | Paul Brook | assert(end < ((abi_ulong)1 << L1_MAP_ADDR_SPACE_BITS));
|
2449 | 376a7909 | Richard Henderson | #endif
|
2450 | 376a7909 | Richard Henderson | assert(start < end); |
2451 | 9fa3e853 | bellard | |
2452 | 9fa3e853 | bellard | start = start & TARGET_PAGE_MASK; |
2453 | 9fa3e853 | bellard | end = TARGET_PAGE_ALIGN(end); |
2454 | 376a7909 | Richard Henderson | |
2455 | 376a7909 | Richard Henderson | if (flags & PAGE_WRITE) {
|
2456 | 9fa3e853 | bellard | flags |= PAGE_WRITE_ORG; |
2457 | 376a7909 | Richard Henderson | } |
2458 | 376a7909 | Richard Henderson | |
2459 | 376a7909 | Richard Henderson | for (addr = start, len = end - start;
|
2460 | 376a7909 | Richard Henderson | len != 0;
|
2461 | 376a7909 | Richard Henderson | len -= TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) { |
2462 | 376a7909 | Richard Henderson | PageDesc *p = page_find_alloc(addr >> TARGET_PAGE_BITS, 1);
|
2463 | 376a7909 | Richard Henderson | |
2464 | 376a7909 | Richard Henderson | /* If the write protection bit is set, then we invalidate
|
2465 | 376a7909 | Richard Henderson | the code inside. */
|
2466 | 5fafdf24 | ths | if (!(p->flags & PAGE_WRITE) &&
|
2467 | 9fa3e853 | bellard | (flags & PAGE_WRITE) && |
2468 | 9fa3e853 | bellard | p->first_tb) { |
2469 | d720b93d | bellard | tb_invalidate_phys_page(addr, 0, NULL); |
2470 | 9fa3e853 | bellard | } |
2471 | 9fa3e853 | bellard | p->flags = flags; |
2472 | 9fa3e853 | bellard | } |
2473 | 33417e70 | bellard | } |
2474 | 33417e70 | bellard | |
2475 | 3d97b40b | ths | int page_check_range(target_ulong start, target_ulong len, int flags) |
2476 | 3d97b40b | ths | { |
2477 | 3d97b40b | ths | PageDesc *p; |
2478 | 3d97b40b | ths | target_ulong end; |
2479 | 3d97b40b | ths | target_ulong addr; |
2480 | 3d97b40b | ths | |
2481 | 376a7909 | Richard Henderson | /* This function should never be called with addresses outside the
|
2482 | 376a7909 | Richard Henderson | guest address space. If this assert fires, it probably indicates
|
2483 | 376a7909 | Richard Henderson | a missing call to h2g_valid. */
|
2484 | 338e9e6c | Blue Swirl | #if TARGET_ABI_BITS > L1_MAP_ADDR_SPACE_BITS
|
2485 | 338e9e6c | Blue Swirl | assert(start < ((abi_ulong)1 << L1_MAP_ADDR_SPACE_BITS));
|
2486 | 376a7909 | Richard Henderson | #endif
|
2487 | 376a7909 | Richard Henderson | |
2488 | 3e0650a9 | Richard Henderson | if (len == 0) { |
2489 | 3e0650a9 | Richard Henderson | return 0; |
2490 | 3e0650a9 | Richard Henderson | } |
2491 | 376a7909 | Richard Henderson | if (start + len - 1 < start) { |
2492 | 376a7909 | Richard Henderson | /* We've wrapped around. */
|
2493 | 55f280c9 | balrog | return -1; |
2494 | 376a7909 | Richard Henderson | } |
2495 | 55f280c9 | balrog | |
2496 | 3d97b40b | ths | end = TARGET_PAGE_ALIGN(start+len); /* must do before we loose bits in the next step */
|
2497 | 3d97b40b | ths | start = start & TARGET_PAGE_MASK; |
2498 | 3d97b40b | ths | |
2499 | 376a7909 | Richard Henderson | for (addr = start, len = end - start;
|
2500 | 376a7909 | Richard Henderson | len != 0;
|
2501 | 376a7909 | Richard Henderson | len -= TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) { |
2502 | 3d97b40b | ths | p = page_find(addr >> TARGET_PAGE_BITS); |
2503 | 3d97b40b | ths | if( !p )
|
2504 | 3d97b40b | ths | return -1; |
2505 | 3d97b40b | ths | if( !(p->flags & PAGE_VALID) )
|
2506 | 3d97b40b | ths | return -1; |
2507 | 3d97b40b | ths | |
2508 | dae3270c | bellard | if ((flags & PAGE_READ) && !(p->flags & PAGE_READ))
|
2509 | 3d97b40b | ths | return -1; |
2510 | dae3270c | bellard | if (flags & PAGE_WRITE) {
|
2511 | dae3270c | bellard | if (!(p->flags & PAGE_WRITE_ORG))
|
2512 | dae3270c | bellard | return -1; |
2513 | dae3270c | bellard | /* unprotect the page if it was put read-only because it
|
2514 | dae3270c | bellard | contains translated code */
|
2515 | dae3270c | bellard | if (!(p->flags & PAGE_WRITE)) {
|
2516 | dae3270c | bellard | if (!page_unprotect(addr, 0, NULL)) |
2517 | dae3270c | bellard | return -1; |
2518 | dae3270c | bellard | } |
2519 | dae3270c | bellard | return 0; |
2520 | dae3270c | bellard | } |
2521 | 3d97b40b | ths | } |
2522 | 3d97b40b | ths | return 0; |
2523 | 3d97b40b | ths | } |
2524 | 3d97b40b | ths | |
2525 | 9fa3e853 | bellard | /* called from signal handler: invalidate the code and unprotect the
|
2526 | ccbb4d44 | Stuart Brady | page. Return TRUE if the fault was successfully handled. */
|
2527 | 53a5960a | pbrook | int page_unprotect(target_ulong address, unsigned long pc, void *puc) |
2528 | 9fa3e853 | bellard | { |
2529 | 45d679d6 | Aurelien Jarno | unsigned int prot; |
2530 | 45d679d6 | Aurelien Jarno | PageDesc *p; |
2531 | 53a5960a | pbrook | target_ulong host_start, host_end, addr; |
2532 | 9fa3e853 | bellard | |
2533 | c8a706fe | pbrook | /* Technically this isn't safe inside a signal handler. However we
|
2534 | c8a706fe | pbrook | know this only ever happens in a synchronous SEGV handler, so in
|
2535 | c8a706fe | pbrook | practice it seems to be ok. */
|
2536 | c8a706fe | pbrook | mmap_lock(); |
2537 | c8a706fe | pbrook | |
2538 | 45d679d6 | Aurelien Jarno | p = page_find(address >> TARGET_PAGE_BITS); |
2539 | 45d679d6 | Aurelien Jarno | if (!p) {
|
2540 | c8a706fe | pbrook | mmap_unlock(); |
2541 | 9fa3e853 | bellard | return 0; |
2542 | c8a706fe | pbrook | } |
2543 | 45d679d6 | Aurelien Jarno | |
2544 | 9fa3e853 | bellard | /* if the page was really writable, then we change its
|
2545 | 9fa3e853 | bellard | protection back to writable */
|
2546 | 45d679d6 | Aurelien Jarno | if ((p->flags & PAGE_WRITE_ORG) && !(p->flags & PAGE_WRITE)) {
|
2547 | 45d679d6 | Aurelien Jarno | host_start = address & qemu_host_page_mask; |
2548 | 45d679d6 | Aurelien Jarno | host_end = host_start + qemu_host_page_size; |
2549 | 45d679d6 | Aurelien Jarno | |
2550 | 45d679d6 | Aurelien Jarno | prot = 0;
|
2551 | 45d679d6 | Aurelien Jarno | for (addr = host_start ; addr < host_end ; addr += TARGET_PAGE_SIZE) {
|
2552 | 45d679d6 | Aurelien Jarno | p = page_find(addr >> TARGET_PAGE_BITS); |
2553 | 45d679d6 | Aurelien Jarno | p->flags |= PAGE_WRITE; |
2554 | 45d679d6 | Aurelien Jarno | prot |= p->flags; |
2555 | 45d679d6 | Aurelien Jarno | |
2556 | 9fa3e853 | bellard | /* and since the content will be modified, we must invalidate
|
2557 | 9fa3e853 | bellard | the corresponding translated code. */
|
2558 | 45d679d6 | Aurelien Jarno | tb_invalidate_phys_page(addr, pc, puc); |
2559 | 9fa3e853 | bellard | #ifdef DEBUG_TB_CHECK
|
2560 | 45d679d6 | Aurelien Jarno | tb_invalidate_check(addr); |
2561 | 9fa3e853 | bellard | #endif
|
2562 | 9fa3e853 | bellard | } |
2563 | 45d679d6 | Aurelien Jarno | mprotect((void *)g2h(host_start), qemu_host_page_size,
|
2564 | 45d679d6 | Aurelien Jarno | prot & PAGE_BITS); |
2565 | 45d679d6 | Aurelien Jarno | |
2566 | 45d679d6 | Aurelien Jarno | mmap_unlock(); |
2567 | 45d679d6 | Aurelien Jarno | return 1; |
2568 | 9fa3e853 | bellard | } |
2569 | c8a706fe | pbrook | mmap_unlock(); |
2570 | 9fa3e853 | bellard | return 0; |
2571 | 9fa3e853 | bellard | } |
2572 | 9fa3e853 | bellard | |
2573 | 6a00d601 | bellard | static inline void tlb_set_dirty(CPUState *env, |
2574 | 6a00d601 | bellard | unsigned long addr, target_ulong vaddr) |
2575 | 1ccde1cb | bellard | { |
2576 | 1ccde1cb | bellard | } |
2577 | 9fa3e853 | bellard | #endif /* defined(CONFIG_USER_ONLY) */ |
2578 | 9fa3e853 | bellard | |
2579 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
|
2580 | 8da3ff18 | pbrook | |
2581 | c04b2b78 | Paul Brook | #define SUBPAGE_IDX(addr) ((addr) & ~TARGET_PAGE_MASK)
|
2582 | c04b2b78 | Paul Brook | typedef struct subpage_t { |
2583 | c04b2b78 | Paul Brook | target_phys_addr_t base; |
2584 | f6405247 | Richard Henderson | ram_addr_t sub_io_index[TARGET_PAGE_SIZE]; |
2585 | f6405247 | Richard Henderson | ram_addr_t region_offset[TARGET_PAGE_SIZE]; |
2586 | c04b2b78 | Paul Brook | } subpage_t; |
2587 | c04b2b78 | Paul Brook | |
2588 | c227f099 | Anthony Liguori | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
2589 | c227f099 | Anthony Liguori | ram_addr_t memory, ram_addr_t region_offset); |
2590 | f6405247 | Richard Henderson | static subpage_t *subpage_init (target_phys_addr_t base, ram_addr_t *phys,
|
2591 | f6405247 | Richard Henderson | ram_addr_t orig_memory, |
2592 | f6405247 | Richard Henderson | ram_addr_t region_offset); |
2593 | db7b5426 | blueswir1 | #define CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, \
|
2594 | db7b5426 | blueswir1 | need_subpage) \ |
2595 | db7b5426 | blueswir1 | do { \
|
2596 | db7b5426 | blueswir1 | if (addr > start_addr) \
|
2597 | db7b5426 | blueswir1 | start_addr2 = 0; \
|
2598 | db7b5426 | blueswir1 | else { \
|
2599 | db7b5426 | blueswir1 | start_addr2 = start_addr & ~TARGET_PAGE_MASK; \ |
2600 | db7b5426 | blueswir1 | if (start_addr2 > 0) \ |
2601 | db7b5426 | blueswir1 | need_subpage = 1; \
|
2602 | db7b5426 | blueswir1 | } \ |
2603 | db7b5426 | blueswir1 | \ |
2604 | 49e9fba2 | blueswir1 | if ((start_addr + orig_size) - addr >= TARGET_PAGE_SIZE) \
|
2605 | db7b5426 | blueswir1 | end_addr2 = TARGET_PAGE_SIZE - 1; \
|
2606 | db7b5426 | blueswir1 | else { \
|
2607 | db7b5426 | blueswir1 | end_addr2 = (start_addr + orig_size - 1) & ~TARGET_PAGE_MASK; \
|
2608 | db7b5426 | blueswir1 | if (end_addr2 < TARGET_PAGE_SIZE - 1) \ |
2609 | db7b5426 | blueswir1 | need_subpage = 1; \
|
2610 | db7b5426 | blueswir1 | } \ |
2611 | db7b5426 | blueswir1 | } while (0) |
2612 | db7b5426 | blueswir1 | |
2613 | 8f2498f9 | Michael S. Tsirkin | /* register physical memory.
|
2614 | 8f2498f9 | Michael S. Tsirkin | For RAM, 'size' must be a multiple of the target page size.
|
2615 | 8f2498f9 | Michael S. Tsirkin | If (phys_offset & ~TARGET_PAGE_MASK) != 0, then it is an
|
2616 | 8da3ff18 | pbrook | io memory page. The address used when calling the IO function is
|
2617 | 8da3ff18 | pbrook | the offset from the start of the region, plus region_offset. Both
|
2618 | ccbb4d44 | Stuart Brady | start_addr and region_offset are rounded down to a page boundary
|
2619 | 8da3ff18 | pbrook | before calculating this offset. This should not be a problem unless
|
2620 | 8da3ff18 | pbrook | the low bits of start_addr and region_offset differ. */
|
2621 | 0fd542fb | Michael S. Tsirkin | void cpu_register_physical_memory_log(target_phys_addr_t start_addr,
|
2622 | c227f099 | Anthony Liguori | ram_addr_t size, |
2623 | c227f099 | Anthony Liguori | ram_addr_t phys_offset, |
2624 | 0fd542fb | Michael S. Tsirkin | ram_addr_t region_offset, |
2625 | 0fd542fb | Michael S. Tsirkin | bool log_dirty)
|
2626 | 33417e70 | bellard | { |
2627 | c227f099 | Anthony Liguori | target_phys_addr_t addr, end_addr; |
2628 | 92e873b9 | bellard | PhysPageDesc *p; |
2629 | 9d42037b | bellard | CPUState *env; |
2630 | c227f099 | Anthony Liguori | ram_addr_t orig_size = size; |
2631 | f6405247 | Richard Henderson | subpage_t *subpage; |
2632 | 33417e70 | bellard | |
2633 | 3b8e6a2d | Edgar E. Iglesias | assert(size); |
2634 | 0fd542fb | Michael S. Tsirkin | cpu_notify_set_memory(start_addr, size, phys_offset, log_dirty); |
2635 | f6f3fbca | Michael S. Tsirkin | |
2636 | 67c4d23c | pbrook | if (phys_offset == IO_MEM_UNASSIGNED) {
|
2637 | 67c4d23c | pbrook | region_offset = start_addr; |
2638 | 67c4d23c | pbrook | } |
2639 | 8da3ff18 | pbrook | region_offset &= TARGET_PAGE_MASK; |
2640 | 5fd386f6 | bellard | size = (size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
|
2641 | c227f099 | Anthony Liguori | end_addr = start_addr + (target_phys_addr_t)size; |
2642 | 3b8e6a2d | Edgar E. Iglesias | |
2643 | 3b8e6a2d | Edgar E. Iglesias | addr = start_addr; |
2644 | 3b8e6a2d | Edgar E. Iglesias | do {
|
2645 | db7b5426 | blueswir1 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
2646 | db7b5426 | blueswir1 | if (p && p->phys_offset != IO_MEM_UNASSIGNED) {
|
2647 | c227f099 | Anthony Liguori | ram_addr_t orig_memory = p->phys_offset; |
2648 | c227f099 | Anthony Liguori | target_phys_addr_t start_addr2, end_addr2; |
2649 | db7b5426 | blueswir1 | int need_subpage = 0; |
2650 | db7b5426 | blueswir1 | |
2651 | db7b5426 | blueswir1 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, |
2652 | db7b5426 | blueswir1 | need_subpage); |
2653 | f6405247 | Richard Henderson | if (need_subpage) {
|
2654 | db7b5426 | blueswir1 | if (!(orig_memory & IO_MEM_SUBPAGE)) {
|
2655 | db7b5426 | blueswir1 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
2656 | 8da3ff18 | pbrook | &p->phys_offset, orig_memory, |
2657 | 8da3ff18 | pbrook | p->region_offset); |
2658 | db7b5426 | blueswir1 | } else {
|
2659 | db7b5426 | blueswir1 | subpage = io_mem_opaque[(orig_memory & ~TARGET_PAGE_MASK) |
2660 | db7b5426 | blueswir1 | >> IO_MEM_SHIFT]; |
2661 | db7b5426 | blueswir1 | } |
2662 | 8da3ff18 | pbrook | subpage_register(subpage, start_addr2, end_addr2, phys_offset, |
2663 | 8da3ff18 | pbrook | region_offset); |
2664 | 8da3ff18 | pbrook | p->region_offset = 0;
|
2665 | db7b5426 | blueswir1 | } else {
|
2666 | db7b5426 | blueswir1 | p->phys_offset = phys_offset; |
2667 | db7b5426 | blueswir1 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM ||
|
2668 | db7b5426 | blueswir1 | (phys_offset & IO_MEM_ROMD)) |
2669 | db7b5426 | blueswir1 | phys_offset += TARGET_PAGE_SIZE; |
2670 | db7b5426 | blueswir1 | } |
2671 | db7b5426 | blueswir1 | } else {
|
2672 | db7b5426 | blueswir1 | p = phys_page_find_alloc(addr >> TARGET_PAGE_BITS, 1);
|
2673 | db7b5426 | blueswir1 | p->phys_offset = phys_offset; |
2674 | 8da3ff18 | pbrook | p->region_offset = region_offset; |
2675 | db7b5426 | blueswir1 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM ||
|
2676 | 8da3ff18 | pbrook | (phys_offset & IO_MEM_ROMD)) { |
2677 | db7b5426 | blueswir1 | phys_offset += TARGET_PAGE_SIZE; |
2678 | 0e8f0967 | pbrook | } else {
|
2679 | c227f099 | Anthony Liguori | target_phys_addr_t start_addr2, end_addr2; |
2680 | db7b5426 | blueswir1 | int need_subpage = 0; |
2681 | db7b5426 | blueswir1 | |
2682 | db7b5426 | blueswir1 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, |
2683 | db7b5426 | blueswir1 | end_addr2, need_subpage); |
2684 | db7b5426 | blueswir1 | |
2685 | f6405247 | Richard Henderson | if (need_subpage) {
|
2686 | db7b5426 | blueswir1 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
2687 | 8da3ff18 | pbrook | &p->phys_offset, IO_MEM_UNASSIGNED, |
2688 | 67c4d23c | pbrook | addr & TARGET_PAGE_MASK); |
2689 | db7b5426 | blueswir1 | subpage_register(subpage, start_addr2, end_addr2, |
2690 | 8da3ff18 | pbrook | phys_offset, region_offset); |
2691 | 8da3ff18 | pbrook | p->region_offset = 0;
|
2692 | db7b5426 | blueswir1 | } |
2693 | db7b5426 | blueswir1 | } |
2694 | db7b5426 | blueswir1 | } |
2695 | 8da3ff18 | pbrook | region_offset += TARGET_PAGE_SIZE; |
2696 | 3b8e6a2d | Edgar E. Iglesias | addr += TARGET_PAGE_SIZE; |
2697 | 3b8e6a2d | Edgar E. Iglesias | } while (addr != end_addr);
|
2698 | 3b46e624 | ths | |
2699 | 9d42037b | bellard | /* since each CPU stores ram addresses in its TLB cache, we must
|
2700 | 9d42037b | bellard | reset the modified entries */
|
2701 | 9d42037b | bellard | /* XXX: slow ! */
|
2702 | 9d42037b | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
2703 | 9d42037b | bellard | tlb_flush(env, 1);
|
2704 | 9d42037b | bellard | } |
2705 | 33417e70 | bellard | } |
2706 | 33417e70 | bellard | |
2707 | ba863458 | bellard | /* XXX: temporary until new memory mapping API */
|
2708 | c227f099 | Anthony Liguori | ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr) |
2709 | ba863458 | bellard | { |
2710 | ba863458 | bellard | PhysPageDesc *p; |
2711 | ba863458 | bellard | |
2712 | ba863458 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
2713 | ba863458 | bellard | if (!p)
|
2714 | ba863458 | bellard | return IO_MEM_UNASSIGNED;
|
2715 | ba863458 | bellard | return p->phys_offset;
|
2716 | ba863458 | bellard | } |
2717 | ba863458 | bellard | |
2718 | c227f099 | Anthony Liguori | void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size)
|
2719 | f65ed4c1 | aliguori | { |
2720 | f65ed4c1 | aliguori | if (kvm_enabled())
|
2721 | f65ed4c1 | aliguori | kvm_coalesce_mmio_region(addr, size); |
2722 | f65ed4c1 | aliguori | } |
2723 | f65ed4c1 | aliguori | |
2724 | c227f099 | Anthony Liguori | void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size)
|
2725 | f65ed4c1 | aliguori | { |
2726 | f65ed4c1 | aliguori | if (kvm_enabled())
|
2727 | f65ed4c1 | aliguori | kvm_uncoalesce_mmio_region(addr, size); |
2728 | f65ed4c1 | aliguori | } |
2729 | f65ed4c1 | aliguori | |
2730 | 62a2744c | Sheng Yang | void qemu_flush_coalesced_mmio_buffer(void) |
2731 | 62a2744c | Sheng Yang | { |
2732 | 62a2744c | Sheng Yang | if (kvm_enabled())
|
2733 | 62a2744c | Sheng Yang | kvm_flush_coalesced_mmio_buffer(); |
2734 | 62a2744c | Sheng Yang | } |
2735 | 62a2744c | Sheng Yang | |
2736 | c902760f | Marcelo Tosatti | #if defined(__linux__) && !defined(TARGET_S390X)
|
2737 | c902760f | Marcelo Tosatti | |
2738 | c902760f | Marcelo Tosatti | #include <sys/vfs.h> |
2739 | c902760f | Marcelo Tosatti | |
2740 | c902760f | Marcelo Tosatti | #define HUGETLBFS_MAGIC 0x958458f6 |
2741 | c902760f | Marcelo Tosatti | |
2742 | c902760f | Marcelo Tosatti | static long gethugepagesize(const char *path) |
2743 | c902760f | Marcelo Tosatti | { |
2744 | c902760f | Marcelo Tosatti | struct statfs fs;
|
2745 | c902760f | Marcelo Tosatti | int ret;
|
2746 | c902760f | Marcelo Tosatti | |
2747 | c902760f | Marcelo Tosatti | do {
|
2748 | 9742bf26 | Yoshiaki Tamura | ret = statfs(path, &fs); |
2749 | c902760f | Marcelo Tosatti | } while (ret != 0 && errno == EINTR); |
2750 | c902760f | Marcelo Tosatti | |
2751 | c902760f | Marcelo Tosatti | if (ret != 0) { |
2752 | 9742bf26 | Yoshiaki Tamura | perror(path); |
2753 | 9742bf26 | Yoshiaki Tamura | return 0; |
2754 | c902760f | Marcelo Tosatti | } |
2755 | c902760f | Marcelo Tosatti | |
2756 | c902760f | Marcelo Tosatti | if (fs.f_type != HUGETLBFS_MAGIC)
|
2757 | 9742bf26 | Yoshiaki Tamura | fprintf(stderr, "Warning: path not on HugeTLBFS: %s\n", path);
|
2758 | c902760f | Marcelo Tosatti | |
2759 | c902760f | Marcelo Tosatti | return fs.f_bsize;
|
2760 | c902760f | Marcelo Tosatti | } |
2761 | c902760f | Marcelo Tosatti | |
2762 | 04b16653 | Alex Williamson | static void *file_ram_alloc(RAMBlock *block, |
2763 | 04b16653 | Alex Williamson | ram_addr_t memory, |
2764 | 04b16653 | Alex Williamson | const char *path) |
2765 | c902760f | Marcelo Tosatti | { |
2766 | c902760f | Marcelo Tosatti | char *filename;
|
2767 | c902760f | Marcelo Tosatti | void *area;
|
2768 | c902760f | Marcelo Tosatti | int fd;
|
2769 | c902760f | Marcelo Tosatti | #ifdef MAP_POPULATE
|
2770 | c902760f | Marcelo Tosatti | int flags;
|
2771 | c902760f | Marcelo Tosatti | #endif
|
2772 | c902760f | Marcelo Tosatti | unsigned long hpagesize; |
2773 | c902760f | Marcelo Tosatti | |
2774 | c902760f | Marcelo Tosatti | hpagesize = gethugepagesize(path); |
2775 | c902760f | Marcelo Tosatti | if (!hpagesize) {
|
2776 | 9742bf26 | Yoshiaki Tamura | return NULL; |
2777 | c902760f | Marcelo Tosatti | } |
2778 | c902760f | Marcelo Tosatti | |
2779 | c902760f | Marcelo Tosatti | if (memory < hpagesize) {
|
2780 | c902760f | Marcelo Tosatti | return NULL; |
2781 | c902760f | Marcelo Tosatti | } |
2782 | c902760f | Marcelo Tosatti | |
2783 | c902760f | Marcelo Tosatti | if (kvm_enabled() && !kvm_has_sync_mmu()) {
|
2784 | c902760f | Marcelo Tosatti | fprintf(stderr, "host lacks kvm mmu notifiers, -mem-path unsupported\n");
|
2785 | c902760f | Marcelo Tosatti | return NULL; |
2786 | c902760f | Marcelo Tosatti | } |
2787 | c902760f | Marcelo Tosatti | |
2788 | c902760f | Marcelo Tosatti | if (asprintf(&filename, "%s/qemu_back_mem.XXXXXX", path) == -1) { |
2789 | 9742bf26 | Yoshiaki Tamura | return NULL; |
2790 | c902760f | Marcelo Tosatti | } |
2791 | c902760f | Marcelo Tosatti | |
2792 | c902760f | Marcelo Tosatti | fd = mkstemp(filename); |
2793 | c902760f | Marcelo Tosatti | if (fd < 0) { |
2794 | 9742bf26 | Yoshiaki Tamura | perror("unable to create backing store for hugepages");
|
2795 | 9742bf26 | Yoshiaki Tamura | free(filename); |
2796 | 9742bf26 | Yoshiaki Tamura | return NULL; |
2797 | c902760f | Marcelo Tosatti | } |
2798 | c902760f | Marcelo Tosatti | unlink(filename); |
2799 | c902760f | Marcelo Tosatti | free(filename); |
2800 | c902760f | Marcelo Tosatti | |
2801 | c902760f | Marcelo Tosatti | memory = (memory+hpagesize-1) & ~(hpagesize-1); |
2802 | c902760f | Marcelo Tosatti | |
2803 | c902760f | Marcelo Tosatti | /*
|
2804 | c902760f | Marcelo Tosatti | * ftruncate is not supported by hugetlbfs in older
|
2805 | c902760f | Marcelo Tosatti | * hosts, so don't bother bailing out on errors.
|
2806 | c902760f | Marcelo Tosatti | * If anything goes wrong with it under other filesystems,
|
2807 | c902760f | Marcelo Tosatti | * mmap will fail.
|
2808 | c902760f | Marcelo Tosatti | */
|
2809 | c902760f | Marcelo Tosatti | if (ftruncate(fd, memory))
|
2810 | 9742bf26 | Yoshiaki Tamura | perror("ftruncate");
|
2811 | c902760f | Marcelo Tosatti | |
2812 | c902760f | Marcelo Tosatti | #ifdef MAP_POPULATE
|
2813 | c902760f | Marcelo Tosatti | /* NB: MAP_POPULATE won't exhaustively alloc all phys pages in the case
|
2814 | c902760f | Marcelo Tosatti | * MAP_PRIVATE is requested. For mem_prealloc we mmap as MAP_SHARED
|
2815 | c902760f | Marcelo Tosatti | * to sidestep this quirk.
|
2816 | c902760f | Marcelo Tosatti | */
|
2817 | c902760f | Marcelo Tosatti | flags = mem_prealloc ? MAP_POPULATE | MAP_SHARED : MAP_PRIVATE; |
2818 | c902760f | Marcelo Tosatti | area = mmap(0, memory, PROT_READ | PROT_WRITE, flags, fd, 0); |
2819 | c902760f | Marcelo Tosatti | #else
|
2820 | c902760f | Marcelo Tosatti | area = mmap(0, memory, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); |
2821 | c902760f | Marcelo Tosatti | #endif
|
2822 | c902760f | Marcelo Tosatti | if (area == MAP_FAILED) {
|
2823 | 9742bf26 | Yoshiaki Tamura | perror("file_ram_alloc: can't mmap RAM pages");
|
2824 | 9742bf26 | Yoshiaki Tamura | close(fd); |
2825 | 9742bf26 | Yoshiaki Tamura | return (NULL); |
2826 | c902760f | Marcelo Tosatti | } |
2827 | 04b16653 | Alex Williamson | block->fd = fd; |
2828 | c902760f | Marcelo Tosatti | return area;
|
2829 | c902760f | Marcelo Tosatti | } |
2830 | c902760f | Marcelo Tosatti | #endif
|
2831 | c902760f | Marcelo Tosatti | |
2832 | d17b5288 | Alex Williamson | static ram_addr_t find_ram_offset(ram_addr_t size)
|
2833 | d17b5288 | Alex Williamson | { |
2834 | 04b16653 | Alex Williamson | RAMBlock *block, *next_block; |
2835 | 09d7ae90 | Blue Swirl | ram_addr_t offset = 0, mingap = ULONG_MAX;
|
2836 | 04b16653 | Alex Williamson | |
2837 | 04b16653 | Alex Williamson | if (QLIST_EMPTY(&ram_list.blocks))
|
2838 | 04b16653 | Alex Williamson | return 0; |
2839 | 04b16653 | Alex Williamson | |
2840 | 04b16653 | Alex Williamson | QLIST_FOREACH(block, &ram_list.blocks, next) { |
2841 | 04b16653 | Alex Williamson | ram_addr_t end, next = ULONG_MAX; |
2842 | 04b16653 | Alex Williamson | |
2843 | 04b16653 | Alex Williamson | end = block->offset + block->length; |
2844 | 04b16653 | Alex Williamson | |
2845 | 04b16653 | Alex Williamson | QLIST_FOREACH(next_block, &ram_list.blocks, next) { |
2846 | 04b16653 | Alex Williamson | if (next_block->offset >= end) {
|
2847 | 04b16653 | Alex Williamson | next = MIN(next, next_block->offset); |
2848 | 04b16653 | Alex Williamson | } |
2849 | 04b16653 | Alex Williamson | } |
2850 | 04b16653 | Alex Williamson | if (next - end >= size && next - end < mingap) {
|
2851 | 04b16653 | Alex Williamson | offset = end; |
2852 | 04b16653 | Alex Williamson | mingap = next - end; |
2853 | 04b16653 | Alex Williamson | } |
2854 | 04b16653 | Alex Williamson | } |
2855 | 04b16653 | Alex Williamson | return offset;
|
2856 | 04b16653 | Alex Williamson | } |
2857 | 04b16653 | Alex Williamson | |
2858 | 04b16653 | Alex Williamson | static ram_addr_t last_ram_offset(void) |
2859 | 04b16653 | Alex Williamson | { |
2860 | d17b5288 | Alex Williamson | RAMBlock *block; |
2861 | d17b5288 | Alex Williamson | ram_addr_t last = 0;
|
2862 | d17b5288 | Alex Williamson | |
2863 | d17b5288 | Alex Williamson | QLIST_FOREACH(block, &ram_list.blocks, next) |
2864 | d17b5288 | Alex Williamson | last = MAX(last, block->offset + block->length); |
2865 | d17b5288 | Alex Williamson | |
2866 | d17b5288 | Alex Williamson | return last;
|
2867 | d17b5288 | Alex Williamson | } |
2868 | d17b5288 | Alex Williamson | |
2869 | 84b89d78 | Cam Macdonell | ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name, |
2870 | 6977dfe6 | Yoshiaki Tamura | ram_addr_t size, void *host)
|
2871 | 84b89d78 | Cam Macdonell | { |
2872 | 84b89d78 | Cam Macdonell | RAMBlock *new_block, *block; |
2873 | 84b89d78 | Cam Macdonell | |
2874 | 84b89d78 | Cam Macdonell | size = TARGET_PAGE_ALIGN(size); |
2875 | 84b89d78 | Cam Macdonell | new_block = qemu_mallocz(sizeof(*new_block));
|
2876 | 84b89d78 | Cam Macdonell | |
2877 | 84b89d78 | Cam Macdonell | if (dev && dev->parent_bus && dev->parent_bus->info->get_dev_path) {
|
2878 | 84b89d78 | Cam Macdonell | char *id = dev->parent_bus->info->get_dev_path(dev);
|
2879 | 84b89d78 | Cam Macdonell | if (id) {
|
2880 | 84b89d78 | Cam Macdonell | snprintf(new_block->idstr, sizeof(new_block->idstr), "%s/", id); |
2881 | 84b89d78 | Cam Macdonell | qemu_free(id); |
2882 | 84b89d78 | Cam Macdonell | } |
2883 | 84b89d78 | Cam Macdonell | } |
2884 | 84b89d78 | Cam Macdonell | pstrcat(new_block->idstr, sizeof(new_block->idstr), name);
|
2885 | 84b89d78 | Cam Macdonell | |
2886 | 84b89d78 | Cam Macdonell | QLIST_FOREACH(block, &ram_list.blocks, next) { |
2887 | 84b89d78 | Cam Macdonell | if (!strcmp(block->idstr, new_block->idstr)) {
|
2888 | 84b89d78 | Cam Macdonell | fprintf(stderr, "RAMBlock \"%s\" already registered, abort!\n",
|
2889 | 84b89d78 | Cam Macdonell | new_block->idstr); |
2890 | 84b89d78 | Cam Macdonell | abort(); |
2891 | 84b89d78 | Cam Macdonell | } |
2892 | 84b89d78 | Cam Macdonell | } |
2893 | 84b89d78 | Cam Macdonell | |
2894 | 432d268c | Jun Nakajima | new_block->offset = find_ram_offset(size); |
2895 | 6977dfe6 | Yoshiaki Tamura | if (host) {
|
2896 | 6977dfe6 | Yoshiaki Tamura | new_block->host = host; |
2897 | cd19cfa2 | Huang Ying | new_block->flags |= RAM_PREALLOC_MASK; |
2898 | 6977dfe6 | Yoshiaki Tamura | } else {
|
2899 | 6977dfe6 | Yoshiaki Tamura | if (mem_path) {
|
2900 | c902760f | Marcelo Tosatti | #if defined (__linux__) && !defined(TARGET_S390X)
|
2901 | 6977dfe6 | Yoshiaki Tamura | new_block->host = file_ram_alloc(new_block, size, mem_path); |
2902 | 6977dfe6 | Yoshiaki Tamura | if (!new_block->host) {
|
2903 | 6977dfe6 | Yoshiaki Tamura | new_block->host = qemu_vmalloc(size); |
2904 | e78815a5 | Andreas Fรคrber | qemu_madvise(new_block->host, size, QEMU_MADV_MERGEABLE); |
2905 | 6977dfe6 | Yoshiaki Tamura | } |
2906 | c902760f | Marcelo Tosatti | #else
|
2907 | 6977dfe6 | Yoshiaki Tamura | fprintf(stderr, "-mem-path option unsupported\n");
|
2908 | 6977dfe6 | Yoshiaki Tamura | exit(1);
|
2909 | c902760f | Marcelo Tosatti | #endif
|
2910 | 6977dfe6 | Yoshiaki Tamura | } else {
|
2911 | 6b02494d | Alexander Graf | #if defined(TARGET_S390X) && defined(CONFIG_KVM)
|
2912 | ff83678a | Christian Borntraeger | /* S390 KVM requires the topmost vma of the RAM to be smaller than
|
2913 | ff83678a | Christian Borntraeger | an system defined value, which is at least 256GB. Larger systems
|
2914 | ff83678a | Christian Borntraeger | have larger values. We put the guest between the end of data
|
2915 | ff83678a | Christian Borntraeger | segment (system break) and this value. We use 32GB as a base to
|
2916 | ff83678a | Christian Borntraeger | have enough room for the system break to grow. */
|
2917 | ff83678a | Christian Borntraeger | new_block->host = mmap((void*)0x800000000, size, |
2918 | 6977dfe6 | Yoshiaki Tamura | PROT_EXEC|PROT_READ|PROT_WRITE, |
2919 | ff83678a | Christian Borntraeger | MAP_SHARED | MAP_ANONYMOUS | MAP_FIXED, -1, 0); |
2920 | fb8b2735 | Alexander Graf | if (new_block->host == MAP_FAILED) {
|
2921 | fb8b2735 | Alexander Graf | fprintf(stderr, "Allocating RAM failed\n");
|
2922 | fb8b2735 | Alexander Graf | abort(); |
2923 | fb8b2735 | Alexander Graf | } |
2924 | 6b02494d | Alexander Graf | #else
|
2925 | 432d268c | Jun Nakajima | if (xen_mapcache_enabled()) {
|
2926 | 432d268c | Jun Nakajima | xen_ram_alloc(new_block->offset, size); |
2927 | 432d268c | Jun Nakajima | } else {
|
2928 | 432d268c | Jun Nakajima | new_block->host = qemu_vmalloc(size); |
2929 | 432d268c | Jun Nakajima | } |
2930 | 6b02494d | Alexander Graf | #endif
|
2931 | e78815a5 | Andreas Fรคrber | qemu_madvise(new_block->host, size, QEMU_MADV_MERGEABLE); |
2932 | 6977dfe6 | Yoshiaki Tamura | } |
2933 | c902760f | Marcelo Tosatti | } |
2934 | 94a6b54f | pbrook | new_block->length = size; |
2935 | 94a6b54f | pbrook | |
2936 | f471a17e | Alex Williamson | QLIST_INSERT_HEAD(&ram_list.blocks, new_block, next); |
2937 | 94a6b54f | pbrook | |
2938 | f471a17e | Alex Williamson | ram_list.phys_dirty = qemu_realloc(ram_list.phys_dirty, |
2939 | 04b16653 | Alex Williamson | last_ram_offset() >> TARGET_PAGE_BITS); |
2940 | d17b5288 | Alex Williamson | memset(ram_list.phys_dirty + (new_block->offset >> TARGET_PAGE_BITS), |
2941 | 94a6b54f | pbrook | 0xff, size >> TARGET_PAGE_BITS);
|
2942 | 94a6b54f | pbrook | |
2943 | 6f0437e8 | Jan Kiszka | if (kvm_enabled())
|
2944 | 6f0437e8 | Jan Kiszka | kvm_setup_guest_memory(new_block->host, size); |
2945 | 6f0437e8 | Jan Kiszka | |
2946 | 94a6b54f | pbrook | return new_block->offset;
|
2947 | 94a6b54f | pbrook | } |
2948 | e9a1ab19 | bellard | |
2949 | 6977dfe6 | Yoshiaki Tamura | ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size) |
2950 | 6977dfe6 | Yoshiaki Tamura | { |
2951 | 6977dfe6 | Yoshiaki Tamura | return qemu_ram_alloc_from_ptr(dev, name, size, NULL); |
2952 | 6977dfe6 | Yoshiaki Tamura | } |
2953 | 6977dfe6 | Yoshiaki Tamura | |
2954 | 1f2e98b6 | Alex Williamson | void qemu_ram_free_from_ptr(ram_addr_t addr)
|
2955 | 1f2e98b6 | Alex Williamson | { |
2956 | 1f2e98b6 | Alex Williamson | RAMBlock *block; |
2957 | 1f2e98b6 | Alex Williamson | |
2958 | 1f2e98b6 | Alex Williamson | QLIST_FOREACH(block, &ram_list.blocks, next) { |
2959 | 1f2e98b6 | Alex Williamson | if (addr == block->offset) {
|
2960 | 1f2e98b6 | Alex Williamson | QLIST_REMOVE(block, next); |
2961 | 1f2e98b6 | Alex Williamson | qemu_free(block); |
2962 | 1f2e98b6 | Alex Williamson | return;
|
2963 | 1f2e98b6 | Alex Williamson | } |
2964 | 1f2e98b6 | Alex Williamson | } |
2965 | 1f2e98b6 | Alex Williamson | } |
2966 | 1f2e98b6 | Alex Williamson | |
2967 | c227f099 | Anthony Liguori | void qemu_ram_free(ram_addr_t addr)
|
2968 | e9a1ab19 | bellard | { |
2969 | 04b16653 | Alex Williamson | RAMBlock *block; |
2970 | 04b16653 | Alex Williamson | |
2971 | 04b16653 | Alex Williamson | QLIST_FOREACH(block, &ram_list.blocks, next) { |
2972 | 04b16653 | Alex Williamson | if (addr == block->offset) {
|
2973 | 04b16653 | Alex Williamson | QLIST_REMOVE(block, next); |
2974 | cd19cfa2 | Huang Ying | if (block->flags & RAM_PREALLOC_MASK) {
|
2975 | cd19cfa2 | Huang Ying | ; |
2976 | cd19cfa2 | Huang Ying | } else if (mem_path) { |
2977 | 04b16653 | Alex Williamson | #if defined (__linux__) && !defined(TARGET_S390X)
|
2978 | 04b16653 | Alex Williamson | if (block->fd) {
|
2979 | 04b16653 | Alex Williamson | munmap(block->host, block->length); |
2980 | 04b16653 | Alex Williamson | close(block->fd); |
2981 | 04b16653 | Alex Williamson | } else {
|
2982 | 04b16653 | Alex Williamson | qemu_vfree(block->host); |
2983 | 04b16653 | Alex Williamson | } |
2984 | fd28aa13 | Jan Kiszka | #else
|
2985 | fd28aa13 | Jan Kiszka | abort(); |
2986 | 04b16653 | Alex Williamson | #endif
|
2987 | 04b16653 | Alex Williamson | } else {
|
2988 | 04b16653 | Alex Williamson | #if defined(TARGET_S390X) && defined(CONFIG_KVM)
|
2989 | 04b16653 | Alex Williamson | munmap(block->host, block->length); |
2990 | 04b16653 | Alex Williamson | #else
|
2991 | 432d268c | Jun Nakajima | if (xen_mapcache_enabled()) {
|
2992 | 432d268c | Jun Nakajima | qemu_invalidate_entry(block->host); |
2993 | 432d268c | Jun Nakajima | } else {
|
2994 | 432d268c | Jun Nakajima | qemu_vfree(block->host); |
2995 | 432d268c | Jun Nakajima | } |
2996 | 04b16653 | Alex Williamson | #endif
|
2997 | 04b16653 | Alex Williamson | } |
2998 | 04b16653 | Alex Williamson | qemu_free(block); |
2999 | 04b16653 | Alex Williamson | return;
|
3000 | 04b16653 | Alex Williamson | } |
3001 | 04b16653 | Alex Williamson | } |
3002 | 04b16653 | Alex Williamson | |
3003 | e9a1ab19 | bellard | } |
3004 | e9a1ab19 | bellard | |
3005 | cd19cfa2 | Huang Ying | #ifndef _WIN32
|
3006 | cd19cfa2 | Huang Ying | void qemu_ram_remap(ram_addr_t addr, ram_addr_t length)
|
3007 | cd19cfa2 | Huang Ying | { |
3008 | cd19cfa2 | Huang Ying | RAMBlock *block; |
3009 | cd19cfa2 | Huang Ying | ram_addr_t offset; |
3010 | cd19cfa2 | Huang Ying | int flags;
|
3011 | cd19cfa2 | Huang Ying | void *area, *vaddr;
|
3012 | cd19cfa2 | Huang Ying | |
3013 | cd19cfa2 | Huang Ying | QLIST_FOREACH(block, &ram_list.blocks, next) { |
3014 | cd19cfa2 | Huang Ying | offset = addr - block->offset; |
3015 | cd19cfa2 | Huang Ying | if (offset < block->length) {
|
3016 | cd19cfa2 | Huang Ying | vaddr = block->host + offset; |
3017 | cd19cfa2 | Huang Ying | if (block->flags & RAM_PREALLOC_MASK) {
|
3018 | cd19cfa2 | Huang Ying | ; |
3019 | cd19cfa2 | Huang Ying | } else {
|
3020 | cd19cfa2 | Huang Ying | flags = MAP_FIXED; |
3021 | cd19cfa2 | Huang Ying | munmap(vaddr, length); |
3022 | cd19cfa2 | Huang Ying | if (mem_path) {
|
3023 | cd19cfa2 | Huang Ying | #if defined(__linux__) && !defined(TARGET_S390X)
|
3024 | cd19cfa2 | Huang Ying | if (block->fd) {
|
3025 | cd19cfa2 | Huang Ying | #ifdef MAP_POPULATE
|
3026 | cd19cfa2 | Huang Ying | flags |= mem_prealloc ? MAP_POPULATE | MAP_SHARED : |
3027 | cd19cfa2 | Huang Ying | MAP_PRIVATE; |
3028 | cd19cfa2 | Huang Ying | #else
|
3029 | cd19cfa2 | Huang Ying | flags |= MAP_PRIVATE; |
3030 | cd19cfa2 | Huang Ying | #endif
|
3031 | cd19cfa2 | Huang Ying | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
3032 | cd19cfa2 | Huang Ying | flags, block->fd, offset); |
3033 | cd19cfa2 | Huang Ying | } else {
|
3034 | cd19cfa2 | Huang Ying | flags |= MAP_PRIVATE | MAP_ANONYMOUS; |
3035 | cd19cfa2 | Huang Ying | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
3036 | cd19cfa2 | Huang Ying | flags, -1, 0); |
3037 | cd19cfa2 | Huang Ying | } |
3038 | fd28aa13 | Jan Kiszka | #else
|
3039 | fd28aa13 | Jan Kiszka | abort(); |
3040 | cd19cfa2 | Huang Ying | #endif
|
3041 | cd19cfa2 | Huang Ying | } else {
|
3042 | cd19cfa2 | Huang Ying | #if defined(TARGET_S390X) && defined(CONFIG_KVM)
|
3043 | cd19cfa2 | Huang Ying | flags |= MAP_SHARED | MAP_ANONYMOUS; |
3044 | cd19cfa2 | Huang Ying | area = mmap(vaddr, length, PROT_EXEC|PROT_READ|PROT_WRITE, |
3045 | cd19cfa2 | Huang Ying | flags, -1, 0); |
3046 | cd19cfa2 | Huang Ying | #else
|
3047 | cd19cfa2 | Huang Ying | flags |= MAP_PRIVATE | MAP_ANONYMOUS; |
3048 | cd19cfa2 | Huang Ying | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
3049 | cd19cfa2 | Huang Ying | flags, -1, 0); |
3050 | cd19cfa2 | Huang Ying | #endif
|
3051 | cd19cfa2 | Huang Ying | } |
3052 | cd19cfa2 | Huang Ying | if (area != vaddr) {
|
3053 | cd19cfa2 | Huang Ying | fprintf(stderr, "Could not remap addr: %lx@%lx\n",
|
3054 | cd19cfa2 | Huang Ying | length, addr); |
3055 | cd19cfa2 | Huang Ying | exit(1);
|
3056 | cd19cfa2 | Huang Ying | } |
3057 | cd19cfa2 | Huang Ying | qemu_madvise(vaddr, length, QEMU_MADV_MERGEABLE); |
3058 | cd19cfa2 | Huang Ying | } |
3059 | cd19cfa2 | Huang Ying | return;
|
3060 | cd19cfa2 | Huang Ying | } |
3061 | cd19cfa2 | Huang Ying | } |
3062 | cd19cfa2 | Huang Ying | } |
3063 | cd19cfa2 | Huang Ying | #endif /* !_WIN32 */ |
3064 | cd19cfa2 | Huang Ying | |
3065 | dc828ca1 | pbrook | /* Return a host pointer to ram allocated with qemu_ram_alloc.
|
3066 | 5579c7f3 | pbrook | With the exception of the softmmu code in this file, this should
|
3067 | 5579c7f3 | pbrook | only be used for local memory (e.g. video ram) that the device owns,
|
3068 | 5579c7f3 | pbrook | and knows it isn't going to access beyond the end of the block.
|
3069 | 5579c7f3 | pbrook | |
3070 | 5579c7f3 | pbrook | It should not be used for general purpose DMA.
|
3071 | 5579c7f3 | pbrook | Use cpu_physical_memory_map/cpu_physical_memory_rw instead.
|
3072 | 5579c7f3 | pbrook | */
|
3073 | c227f099 | Anthony Liguori | void *qemu_get_ram_ptr(ram_addr_t addr)
|
3074 | dc828ca1 | pbrook | { |
3075 | 94a6b54f | pbrook | RAMBlock *block; |
3076 | 94a6b54f | pbrook | |
3077 | f471a17e | Alex Williamson | QLIST_FOREACH(block, &ram_list.blocks, next) { |
3078 | f471a17e | Alex Williamson | if (addr - block->offset < block->length) {
|
3079 | 7d82af38 | Vincent Palatin | /* Move this entry to to start of the list. */
|
3080 | 7d82af38 | Vincent Palatin | if (block != QLIST_FIRST(&ram_list.blocks)) {
|
3081 | 7d82af38 | Vincent Palatin | QLIST_REMOVE(block, next); |
3082 | 7d82af38 | Vincent Palatin | QLIST_INSERT_HEAD(&ram_list.blocks, block, next); |
3083 | 7d82af38 | Vincent Palatin | } |
3084 | 432d268c | Jun Nakajima | if (xen_mapcache_enabled()) {
|
3085 | 432d268c | Jun Nakajima | /* We need to check if the requested address is in the RAM
|
3086 | 432d268c | Jun Nakajima | * because we don't want to map the entire memory in QEMU.
|
3087 | 432d268c | Jun Nakajima | */
|
3088 | 432d268c | Jun Nakajima | if (block->offset == 0) { |
3089 | 432d268c | Jun Nakajima | return qemu_map_cache(addr, 0, 1); |
3090 | 432d268c | Jun Nakajima | } else if (block->host == NULL) { |
3091 | 432d268c | Jun Nakajima | block->host = xen_map_block(block->offset, block->length); |
3092 | 432d268c | Jun Nakajima | } |
3093 | 432d268c | Jun Nakajima | } |
3094 | f471a17e | Alex Williamson | return block->host + (addr - block->offset);
|
3095 | f471a17e | Alex Williamson | } |
3096 | 94a6b54f | pbrook | } |
3097 | f471a17e | Alex Williamson | |
3098 | f471a17e | Alex Williamson | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
3099 | f471a17e | Alex Williamson | abort(); |
3100 | f471a17e | Alex Williamson | |
3101 | f471a17e | Alex Williamson | return NULL; |
3102 | dc828ca1 | pbrook | } |
3103 | dc828ca1 | pbrook | |
3104 | b2e0a138 | Michael S. Tsirkin | /* Return a host pointer to ram allocated with qemu_ram_alloc.
|
3105 | b2e0a138 | Michael S. Tsirkin | * Same as qemu_get_ram_ptr but avoid reordering ramblocks.
|
3106 | b2e0a138 | Michael S. Tsirkin | */
|
3107 | b2e0a138 | Michael S. Tsirkin | void *qemu_safe_ram_ptr(ram_addr_t addr)
|
3108 | b2e0a138 | Michael S. Tsirkin | { |
3109 | b2e0a138 | Michael S. Tsirkin | RAMBlock *block; |
3110 | b2e0a138 | Michael S. Tsirkin | |
3111 | b2e0a138 | Michael S. Tsirkin | QLIST_FOREACH(block, &ram_list.blocks, next) { |
3112 | b2e0a138 | Michael S. Tsirkin | if (addr - block->offset < block->length) {
|
3113 | 432d268c | Jun Nakajima | if (xen_mapcache_enabled()) {
|
3114 | 432d268c | Jun Nakajima | /* We need to check if the requested address is in the RAM
|
3115 | 432d268c | Jun Nakajima | * because we don't want to map the entire memory in QEMU.
|
3116 | 432d268c | Jun Nakajima | */
|
3117 | 432d268c | Jun Nakajima | if (block->offset == 0) { |
3118 | 432d268c | Jun Nakajima | return qemu_map_cache(addr, 0, 1); |
3119 | 432d268c | Jun Nakajima | } else if (block->host == NULL) { |
3120 | 432d268c | Jun Nakajima | block->host = xen_map_block(block->offset, block->length); |
3121 | 432d268c | Jun Nakajima | } |
3122 | 432d268c | Jun Nakajima | } |
3123 | b2e0a138 | Michael S. Tsirkin | return block->host + (addr - block->offset);
|
3124 | b2e0a138 | Michael S. Tsirkin | } |
3125 | b2e0a138 | Michael S. Tsirkin | } |
3126 | b2e0a138 | Michael S. Tsirkin | |
3127 | b2e0a138 | Michael S. Tsirkin | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
3128 | b2e0a138 | Michael S. Tsirkin | abort(); |
3129 | b2e0a138 | Michael S. Tsirkin | |
3130 | b2e0a138 | Michael S. Tsirkin | return NULL; |
3131 | b2e0a138 | Michael S. Tsirkin | } |
3132 | b2e0a138 | Michael S. Tsirkin | |
3133 | 050a0ddf | Anthony PERARD | void qemu_put_ram_ptr(void *addr) |
3134 | 050a0ddf | Anthony PERARD | { |
3135 | 050a0ddf | Anthony PERARD | trace_qemu_put_ram_ptr(addr); |
3136 | 050a0ddf | Anthony PERARD | |
3137 | 050a0ddf | Anthony PERARD | if (xen_mapcache_enabled()) {
|
3138 | 050a0ddf | Anthony PERARD | RAMBlock *block; |
3139 | 050a0ddf | Anthony PERARD | |
3140 | 050a0ddf | Anthony PERARD | QLIST_FOREACH(block, &ram_list.blocks, next) { |
3141 | 050a0ddf | Anthony PERARD | if (addr == block->host) {
|
3142 | 050a0ddf | Anthony PERARD | break;
|
3143 | 050a0ddf | Anthony PERARD | } |
3144 | 050a0ddf | Anthony PERARD | } |
3145 | 050a0ddf | Anthony PERARD | if (block && block->host) {
|
3146 | 050a0ddf | Anthony PERARD | xen_unmap_block(block->host, block->length); |
3147 | 050a0ddf | Anthony PERARD | block->host = NULL;
|
3148 | 050a0ddf | Anthony PERARD | } else {
|
3149 | 050a0ddf | Anthony PERARD | qemu_map_cache_unlock(addr); |
3150 | 050a0ddf | Anthony PERARD | } |
3151 | 050a0ddf | Anthony PERARD | } |
3152 | 050a0ddf | Anthony PERARD | } |
3153 | 050a0ddf | Anthony PERARD | |
3154 | e890261f | Marcelo Tosatti | int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr) |
3155 | 5579c7f3 | pbrook | { |
3156 | 94a6b54f | pbrook | RAMBlock *block; |
3157 | 94a6b54f | pbrook | uint8_t *host = ptr; |
3158 | 94a6b54f | pbrook | |
3159 | f471a17e | Alex Williamson | QLIST_FOREACH(block, &ram_list.blocks, next) { |
3160 | 432d268c | Jun Nakajima | /* This case append when the block is not mapped. */
|
3161 | 432d268c | Jun Nakajima | if (block->host == NULL) { |
3162 | 432d268c | Jun Nakajima | continue;
|
3163 | 432d268c | Jun Nakajima | } |
3164 | f471a17e | Alex Williamson | if (host - block->host < block->length) {
|
3165 | e890261f | Marcelo Tosatti | *ram_addr = block->offset + (host - block->host); |
3166 | e890261f | Marcelo Tosatti | return 0; |
3167 | f471a17e | Alex Williamson | } |
3168 | 94a6b54f | pbrook | } |
3169 | 432d268c | Jun Nakajima | |
3170 | 432d268c | Jun Nakajima | if (xen_mapcache_enabled()) {
|
3171 | 432d268c | Jun Nakajima | *ram_addr = qemu_ram_addr_from_mapcache(ptr); |
3172 | 432d268c | Jun Nakajima | return 0; |
3173 | 432d268c | Jun Nakajima | } |
3174 | 432d268c | Jun Nakajima | |
3175 | e890261f | Marcelo Tosatti | return -1; |
3176 | e890261f | Marcelo Tosatti | } |
3177 | f471a17e | Alex Williamson | |
3178 | e890261f | Marcelo Tosatti | /* Some of the softmmu routines need to translate from a host pointer
|
3179 | e890261f | Marcelo Tosatti | (typically a TLB entry) back to a ram offset. */
|
3180 | e890261f | Marcelo Tosatti | ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr)
|
3181 | e890261f | Marcelo Tosatti | { |
3182 | e890261f | Marcelo Tosatti | ram_addr_t ram_addr; |
3183 | f471a17e | Alex Williamson | |
3184 | e890261f | Marcelo Tosatti | if (qemu_ram_addr_from_host(ptr, &ram_addr)) {
|
3185 | e890261f | Marcelo Tosatti | fprintf(stderr, "Bad ram pointer %p\n", ptr);
|
3186 | e890261f | Marcelo Tosatti | abort(); |
3187 | e890261f | Marcelo Tosatti | } |
3188 | e890261f | Marcelo Tosatti | return ram_addr;
|
3189 | 5579c7f3 | pbrook | } |
3190 | 5579c7f3 | pbrook | |
3191 | c227f099 | Anthony Liguori | static uint32_t unassigned_mem_readb(void *opaque, target_phys_addr_t addr) |
3192 | 33417e70 | bellard | { |
3193 | 67d3b957 | pbrook | #ifdef DEBUG_UNASSIGNED
|
3194 | ab3d1727 | blueswir1 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
3195 | 67d3b957 | pbrook | #endif
|
3196 | 5b450407 | Richard Henderson | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
3197 | e18231a3 | blueswir1 | do_unassigned_access(addr, 0, 0, 0, 1); |
3198 | e18231a3 | blueswir1 | #endif
|
3199 | e18231a3 | blueswir1 | return 0; |
3200 | e18231a3 | blueswir1 | } |
3201 | e18231a3 | blueswir1 | |
3202 | c227f099 | Anthony Liguori | static uint32_t unassigned_mem_readw(void *opaque, target_phys_addr_t addr) |
3203 | e18231a3 | blueswir1 | { |
3204 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
3205 | e18231a3 | blueswir1 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
3206 | e18231a3 | blueswir1 | #endif
|
3207 | 5b450407 | Richard Henderson | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
3208 | e18231a3 | blueswir1 | do_unassigned_access(addr, 0, 0, 0, 2); |
3209 | e18231a3 | blueswir1 | #endif
|
3210 | e18231a3 | blueswir1 | return 0; |
3211 | e18231a3 | blueswir1 | } |
3212 | e18231a3 | blueswir1 | |
3213 | c227f099 | Anthony Liguori | static uint32_t unassigned_mem_readl(void *opaque, target_phys_addr_t addr) |
3214 | e18231a3 | blueswir1 | { |
3215 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
3216 | e18231a3 | blueswir1 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
3217 | e18231a3 | blueswir1 | #endif
|
3218 | 5b450407 | Richard Henderson | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
3219 | e18231a3 | blueswir1 | do_unassigned_access(addr, 0, 0, 0, 4); |
3220 | b4f0a316 | blueswir1 | #endif
|
3221 | 33417e70 | bellard | return 0; |
3222 | 33417e70 | bellard | } |
3223 | 33417e70 | bellard | |
3224 | c227f099 | Anthony Liguori | static void unassigned_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
3225 | 33417e70 | bellard | { |
3226 | 67d3b957 | pbrook | #ifdef DEBUG_UNASSIGNED
|
3227 | ab3d1727 | blueswir1 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
3228 | 67d3b957 | pbrook | #endif
|
3229 | 5b450407 | Richard Henderson | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
3230 | e18231a3 | blueswir1 | do_unassigned_access(addr, 1, 0, 0, 1); |
3231 | e18231a3 | blueswir1 | #endif
|
3232 | e18231a3 | blueswir1 | } |
3233 | e18231a3 | blueswir1 | |
3234 | c227f099 | Anthony Liguori | static void unassigned_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val) |
3235 | e18231a3 | blueswir1 | { |
3236 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
3237 | e18231a3 | blueswir1 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
3238 | e18231a3 | blueswir1 | #endif
|
3239 | 5b450407 | Richard Henderson | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
3240 | e18231a3 | blueswir1 | do_unassigned_access(addr, 1, 0, 0, 2); |
3241 | e18231a3 | blueswir1 | #endif
|
3242 | e18231a3 | blueswir1 | } |
3243 | e18231a3 | blueswir1 | |
3244 | c227f099 | Anthony Liguori | static void unassigned_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val) |
3245 | e18231a3 | blueswir1 | { |
3246 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
3247 | e18231a3 | blueswir1 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
3248 | e18231a3 | blueswir1 | #endif
|
3249 | 5b450407 | Richard Henderson | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
3250 | e18231a3 | blueswir1 | do_unassigned_access(addr, 1, 0, 0, 4); |
3251 | b4f0a316 | blueswir1 | #endif
|
3252 | 33417e70 | bellard | } |
3253 | 33417e70 | bellard | |
3254 | d60efc6b | Blue Swirl | static CPUReadMemoryFunc * const unassigned_mem_read[3] = { |
3255 | 33417e70 | bellard | unassigned_mem_readb, |
3256 | e18231a3 | blueswir1 | unassigned_mem_readw, |
3257 | e18231a3 | blueswir1 | unassigned_mem_readl, |
3258 | 33417e70 | bellard | }; |
3259 | 33417e70 | bellard | |
3260 | d60efc6b | Blue Swirl | static CPUWriteMemoryFunc * const unassigned_mem_write[3] = { |
3261 | 33417e70 | bellard | unassigned_mem_writeb, |
3262 | e18231a3 | blueswir1 | unassigned_mem_writew, |
3263 | e18231a3 | blueswir1 | unassigned_mem_writel, |
3264 | 33417e70 | bellard | }; |
3265 | 33417e70 | bellard | |
3266 | c227f099 | Anthony Liguori | static void notdirty_mem_writeb(void *opaque, target_phys_addr_t ram_addr, |
3267 | 0f459d16 | pbrook | uint32_t val) |
3268 | 9fa3e853 | bellard | { |
3269 | 3a7d929e | bellard | int dirty_flags;
|
3270 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3271 | 3a7d929e | bellard | if (!(dirty_flags & CODE_DIRTY_FLAG)) {
|
3272 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
3273 | 3a7d929e | bellard | tb_invalidate_phys_page_fast(ram_addr, 1);
|
3274 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3275 | 9fa3e853 | bellard | #endif
|
3276 | 3a7d929e | bellard | } |
3277 | 5579c7f3 | pbrook | stb_p(qemu_get_ram_ptr(ram_addr), val); |
3278 | f23db169 | bellard | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG);
|
3279 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
3280 | f23db169 | bellard | /* we remove the notdirty callback only if the code has been
|
3281 | f23db169 | bellard | flushed */
|
3282 | f23db169 | bellard | if (dirty_flags == 0xff) |
3283 | 2e70f6ef | pbrook | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
3284 | 9fa3e853 | bellard | } |
3285 | 9fa3e853 | bellard | |
3286 | c227f099 | Anthony Liguori | static void notdirty_mem_writew(void *opaque, target_phys_addr_t ram_addr, |
3287 | 0f459d16 | pbrook | uint32_t val) |
3288 | 9fa3e853 | bellard | { |
3289 | 3a7d929e | bellard | int dirty_flags;
|
3290 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3291 | 3a7d929e | bellard | if (!(dirty_flags & CODE_DIRTY_FLAG)) {
|
3292 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
3293 | 3a7d929e | bellard | tb_invalidate_phys_page_fast(ram_addr, 2);
|
3294 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3295 | 9fa3e853 | bellard | #endif
|
3296 | 3a7d929e | bellard | } |
3297 | 5579c7f3 | pbrook | stw_p(qemu_get_ram_ptr(ram_addr), val); |
3298 | f23db169 | bellard | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG);
|
3299 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
3300 | f23db169 | bellard | /* we remove the notdirty callback only if the code has been
|
3301 | f23db169 | bellard | flushed */
|
3302 | f23db169 | bellard | if (dirty_flags == 0xff) |
3303 | 2e70f6ef | pbrook | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
3304 | 9fa3e853 | bellard | } |
3305 | 9fa3e853 | bellard | |
3306 | c227f099 | Anthony Liguori | static void notdirty_mem_writel(void *opaque, target_phys_addr_t ram_addr, |
3307 | 0f459d16 | pbrook | uint32_t val) |
3308 | 9fa3e853 | bellard | { |
3309 | 3a7d929e | bellard | int dirty_flags;
|
3310 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3311 | 3a7d929e | bellard | if (!(dirty_flags & CODE_DIRTY_FLAG)) {
|
3312 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
3313 | 3a7d929e | bellard | tb_invalidate_phys_page_fast(ram_addr, 4);
|
3314 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3315 | 9fa3e853 | bellard | #endif
|
3316 | 3a7d929e | bellard | } |
3317 | 5579c7f3 | pbrook | stl_p(qemu_get_ram_ptr(ram_addr), val); |
3318 | f23db169 | bellard | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG);
|
3319 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
3320 | f23db169 | bellard | /* we remove the notdirty callback only if the code has been
|
3321 | f23db169 | bellard | flushed */
|
3322 | f23db169 | bellard | if (dirty_flags == 0xff) |
3323 | 2e70f6ef | pbrook | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
3324 | 9fa3e853 | bellard | } |
3325 | 9fa3e853 | bellard | |
3326 | d60efc6b | Blue Swirl | static CPUReadMemoryFunc * const error_mem_read[3] = { |
3327 | 9fa3e853 | bellard | NULL, /* never used */ |
3328 | 9fa3e853 | bellard | NULL, /* never used */ |
3329 | 9fa3e853 | bellard | NULL, /* never used */ |
3330 | 9fa3e853 | bellard | }; |
3331 | 9fa3e853 | bellard | |
3332 | d60efc6b | Blue Swirl | static CPUWriteMemoryFunc * const notdirty_mem_write[3] = { |
3333 | 1ccde1cb | bellard | notdirty_mem_writeb, |
3334 | 1ccde1cb | bellard | notdirty_mem_writew, |
3335 | 1ccde1cb | bellard | notdirty_mem_writel, |
3336 | 1ccde1cb | bellard | }; |
3337 | 1ccde1cb | bellard | |
3338 | 0f459d16 | pbrook | /* Generate a debug exception if a watchpoint has been hit. */
|
3339 | b4051334 | aliguori | static void check_watchpoint(int offset, int len_mask, int flags) |
3340 | 0f459d16 | pbrook | { |
3341 | 0f459d16 | pbrook | CPUState *env = cpu_single_env; |
3342 | 06d55cc1 | aliguori | target_ulong pc, cs_base; |
3343 | 06d55cc1 | aliguori | TranslationBlock *tb; |
3344 | 0f459d16 | pbrook | target_ulong vaddr; |
3345 | a1d1bb31 | aliguori | CPUWatchpoint *wp; |
3346 | 06d55cc1 | aliguori | int cpu_flags;
|
3347 | 0f459d16 | pbrook | |
3348 | 06d55cc1 | aliguori | if (env->watchpoint_hit) {
|
3349 | 06d55cc1 | aliguori | /* We re-entered the check after replacing the TB. Now raise
|
3350 | 06d55cc1 | aliguori | * the debug interrupt so that is will trigger after the
|
3351 | 06d55cc1 | aliguori | * current instruction. */
|
3352 | 06d55cc1 | aliguori | cpu_interrupt(env, CPU_INTERRUPT_DEBUG); |
3353 | 06d55cc1 | aliguori | return;
|
3354 | 06d55cc1 | aliguori | } |
3355 | 2e70f6ef | pbrook | vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset; |
3356 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
3357 | b4051334 | aliguori | if ((vaddr == (wp->vaddr & len_mask) ||
|
3358 | b4051334 | aliguori | (vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) { |
3359 | 6e140f28 | aliguori | wp->flags |= BP_WATCHPOINT_HIT; |
3360 | 6e140f28 | aliguori | if (!env->watchpoint_hit) {
|
3361 | 6e140f28 | aliguori | env->watchpoint_hit = wp; |
3362 | 6e140f28 | aliguori | tb = tb_find_pc(env->mem_io_pc); |
3363 | 6e140f28 | aliguori | if (!tb) {
|
3364 | 6e140f28 | aliguori | cpu_abort(env, "check_watchpoint: could not find TB for "
|
3365 | 6e140f28 | aliguori | "pc=%p", (void *)env->mem_io_pc); |
3366 | 6e140f28 | aliguori | } |
3367 | 618ba8e6 | Stefan Weil | cpu_restore_state(tb, env, env->mem_io_pc); |
3368 | 6e140f28 | aliguori | tb_phys_invalidate(tb, -1);
|
3369 | 6e140f28 | aliguori | if (wp->flags & BP_STOP_BEFORE_ACCESS) {
|
3370 | 6e140f28 | aliguori | env->exception_index = EXCP_DEBUG; |
3371 | 6e140f28 | aliguori | } else {
|
3372 | 6e140f28 | aliguori | cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags); |
3373 | 6e140f28 | aliguori | tb_gen_code(env, pc, cs_base, cpu_flags, 1);
|
3374 | 6e140f28 | aliguori | } |
3375 | 6e140f28 | aliguori | cpu_resume_from_signal(env, NULL);
|
3376 | 06d55cc1 | aliguori | } |
3377 | 6e140f28 | aliguori | } else {
|
3378 | 6e140f28 | aliguori | wp->flags &= ~BP_WATCHPOINT_HIT; |
3379 | 0f459d16 | pbrook | } |
3380 | 0f459d16 | pbrook | } |
3381 | 0f459d16 | pbrook | } |
3382 | 0f459d16 | pbrook | |
3383 | 6658ffb8 | pbrook | /* Watchpoint access routines. Watchpoints are inserted using TLB tricks,
|
3384 | 6658ffb8 | pbrook | so these check for a hit then pass through to the normal out-of-line
|
3385 | 6658ffb8 | pbrook | phys routines. */
|
3386 | c227f099 | Anthony Liguori | static uint32_t watch_mem_readb(void *opaque, target_phys_addr_t addr) |
3387 | 6658ffb8 | pbrook | { |
3388 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x0, BP_MEM_READ);
|
3389 | 6658ffb8 | pbrook | return ldub_phys(addr);
|
3390 | 6658ffb8 | pbrook | } |
3391 | 6658ffb8 | pbrook | |
3392 | c227f099 | Anthony Liguori | static uint32_t watch_mem_readw(void *opaque, target_phys_addr_t addr) |
3393 | 6658ffb8 | pbrook | { |
3394 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x1, BP_MEM_READ);
|
3395 | 6658ffb8 | pbrook | return lduw_phys(addr);
|
3396 | 6658ffb8 | pbrook | } |
3397 | 6658ffb8 | pbrook | |
3398 | c227f099 | Anthony Liguori | static uint32_t watch_mem_readl(void *opaque, target_phys_addr_t addr) |
3399 | 6658ffb8 | pbrook | { |
3400 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x3, BP_MEM_READ);
|
3401 | 6658ffb8 | pbrook | return ldl_phys(addr);
|
3402 | 6658ffb8 | pbrook | } |
3403 | 6658ffb8 | pbrook | |
3404 | c227f099 | Anthony Liguori | static void watch_mem_writeb(void *opaque, target_phys_addr_t addr, |
3405 | 6658ffb8 | pbrook | uint32_t val) |
3406 | 6658ffb8 | pbrook | { |
3407 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x0, BP_MEM_WRITE);
|
3408 | 6658ffb8 | pbrook | stb_phys(addr, val); |
3409 | 6658ffb8 | pbrook | } |
3410 | 6658ffb8 | pbrook | |
3411 | c227f099 | Anthony Liguori | static void watch_mem_writew(void *opaque, target_phys_addr_t addr, |
3412 | 6658ffb8 | pbrook | uint32_t val) |
3413 | 6658ffb8 | pbrook | { |
3414 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x1, BP_MEM_WRITE);
|
3415 | 6658ffb8 | pbrook | stw_phys(addr, val); |
3416 | 6658ffb8 | pbrook | } |
3417 | 6658ffb8 | pbrook | |
3418 | c227f099 | Anthony Liguori | static void watch_mem_writel(void *opaque, target_phys_addr_t addr, |
3419 | 6658ffb8 | pbrook | uint32_t val) |
3420 | 6658ffb8 | pbrook | { |
3421 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x3, BP_MEM_WRITE);
|
3422 | 6658ffb8 | pbrook | stl_phys(addr, val); |
3423 | 6658ffb8 | pbrook | } |
3424 | 6658ffb8 | pbrook | |
3425 | d60efc6b | Blue Swirl | static CPUReadMemoryFunc * const watch_mem_read[3] = { |
3426 | 6658ffb8 | pbrook | watch_mem_readb, |
3427 | 6658ffb8 | pbrook | watch_mem_readw, |
3428 | 6658ffb8 | pbrook | watch_mem_readl, |
3429 | 6658ffb8 | pbrook | }; |
3430 | 6658ffb8 | pbrook | |
3431 | d60efc6b | Blue Swirl | static CPUWriteMemoryFunc * const watch_mem_write[3] = { |
3432 | 6658ffb8 | pbrook | watch_mem_writeb, |
3433 | 6658ffb8 | pbrook | watch_mem_writew, |
3434 | 6658ffb8 | pbrook | watch_mem_writel, |
3435 | 6658ffb8 | pbrook | }; |
3436 | 6658ffb8 | pbrook | |
3437 | f6405247 | Richard Henderson | static inline uint32_t subpage_readlen (subpage_t *mmio, |
3438 | f6405247 | Richard Henderson | target_phys_addr_t addr, |
3439 | f6405247 | Richard Henderson | unsigned int len) |
3440 | db7b5426 | blueswir1 | { |
3441 | f6405247 | Richard Henderson | unsigned int idx = SUBPAGE_IDX(addr); |
3442 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
3443 | db7b5426 | blueswir1 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d\n", __func__, |
3444 | db7b5426 | blueswir1 | mmio, len, addr, idx); |
3445 | db7b5426 | blueswir1 | #endif
|
3446 | db7b5426 | blueswir1 | |
3447 | f6405247 | Richard Henderson | addr += mmio->region_offset[idx]; |
3448 | f6405247 | Richard Henderson | idx = mmio->sub_io_index[idx]; |
3449 | f6405247 | Richard Henderson | return io_mem_read[idx][len](io_mem_opaque[idx], addr);
|
3450 | db7b5426 | blueswir1 | } |
3451 | db7b5426 | blueswir1 | |
3452 | c227f099 | Anthony Liguori | static inline void subpage_writelen (subpage_t *mmio, target_phys_addr_t addr, |
3453 | f6405247 | Richard Henderson | uint32_t value, unsigned int len) |
3454 | db7b5426 | blueswir1 | { |
3455 | f6405247 | Richard Henderson | unsigned int idx = SUBPAGE_IDX(addr); |
3456 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
3457 | f6405247 | Richard Henderson | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d value %08x\n", |
3458 | f6405247 | Richard Henderson | __func__, mmio, len, addr, idx, value); |
3459 | db7b5426 | blueswir1 | #endif
|
3460 | f6405247 | Richard Henderson | |
3461 | f6405247 | Richard Henderson | addr += mmio->region_offset[idx]; |
3462 | f6405247 | Richard Henderson | idx = mmio->sub_io_index[idx]; |
3463 | f6405247 | Richard Henderson | io_mem_write[idx][len](io_mem_opaque[idx], addr, value); |
3464 | db7b5426 | blueswir1 | } |
3465 | db7b5426 | blueswir1 | |
3466 | c227f099 | Anthony Liguori | static uint32_t subpage_readb (void *opaque, target_phys_addr_t addr) |
3467 | db7b5426 | blueswir1 | { |
3468 | db7b5426 | blueswir1 | return subpage_readlen(opaque, addr, 0); |
3469 | db7b5426 | blueswir1 | } |
3470 | db7b5426 | blueswir1 | |
3471 | c227f099 | Anthony Liguori | static void subpage_writeb (void *opaque, target_phys_addr_t addr, |
3472 | db7b5426 | blueswir1 | uint32_t value) |
3473 | db7b5426 | blueswir1 | { |
3474 | db7b5426 | blueswir1 | subpage_writelen(opaque, addr, value, 0);
|
3475 | db7b5426 | blueswir1 | } |
3476 | db7b5426 | blueswir1 | |
3477 | c227f099 | Anthony Liguori | static uint32_t subpage_readw (void *opaque, target_phys_addr_t addr) |
3478 | db7b5426 | blueswir1 | { |
3479 | db7b5426 | blueswir1 | return subpage_readlen(opaque, addr, 1); |
3480 | db7b5426 | blueswir1 | } |
3481 | db7b5426 | blueswir1 | |
3482 | c227f099 | Anthony Liguori | static void subpage_writew (void *opaque, target_phys_addr_t addr, |
3483 | db7b5426 | blueswir1 | uint32_t value) |
3484 | db7b5426 | blueswir1 | { |
3485 | db7b5426 | blueswir1 | subpage_writelen(opaque, addr, value, 1);
|
3486 | db7b5426 | blueswir1 | } |
3487 | db7b5426 | blueswir1 | |
3488 | c227f099 | Anthony Liguori | static uint32_t subpage_readl (void *opaque, target_phys_addr_t addr) |
3489 | db7b5426 | blueswir1 | { |
3490 | db7b5426 | blueswir1 | return subpage_readlen(opaque, addr, 2); |
3491 | db7b5426 | blueswir1 | } |
3492 | db7b5426 | blueswir1 | |
3493 | f6405247 | Richard Henderson | static void subpage_writel (void *opaque, target_phys_addr_t addr, |
3494 | f6405247 | Richard Henderson | uint32_t value) |
3495 | db7b5426 | blueswir1 | { |
3496 | db7b5426 | blueswir1 | subpage_writelen(opaque, addr, value, 2);
|
3497 | db7b5426 | blueswir1 | } |
3498 | db7b5426 | blueswir1 | |
3499 | d60efc6b | Blue Swirl | static CPUReadMemoryFunc * const subpage_read[] = { |
3500 | db7b5426 | blueswir1 | &subpage_readb, |
3501 | db7b5426 | blueswir1 | &subpage_readw, |
3502 | db7b5426 | blueswir1 | &subpage_readl, |
3503 | db7b5426 | blueswir1 | }; |
3504 | db7b5426 | blueswir1 | |
3505 | d60efc6b | Blue Swirl | static CPUWriteMemoryFunc * const subpage_write[] = { |
3506 | db7b5426 | blueswir1 | &subpage_writeb, |
3507 | db7b5426 | blueswir1 | &subpage_writew, |
3508 | db7b5426 | blueswir1 | &subpage_writel, |
3509 | db7b5426 | blueswir1 | }; |
3510 | db7b5426 | blueswir1 | |
3511 | c227f099 | Anthony Liguori | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
3512 | c227f099 | Anthony Liguori | ram_addr_t memory, ram_addr_t region_offset) |
3513 | db7b5426 | blueswir1 | { |
3514 | db7b5426 | blueswir1 | int idx, eidx;
|
3515 | db7b5426 | blueswir1 | |
3516 | db7b5426 | blueswir1 | if (start >= TARGET_PAGE_SIZE || end >= TARGET_PAGE_SIZE)
|
3517 | db7b5426 | blueswir1 | return -1; |
3518 | db7b5426 | blueswir1 | idx = SUBPAGE_IDX(start); |
3519 | db7b5426 | blueswir1 | eidx = SUBPAGE_IDX(end); |
3520 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
3521 | 0bf9e31a | Blue Swirl | printf("%s: %p start %08x end %08x idx %08x eidx %08x mem %ld\n", __func__,
|
3522 | db7b5426 | blueswir1 | mmio, start, end, idx, eidx, memory); |
3523 | db7b5426 | blueswir1 | #endif
|
3524 | 95c318f5 | Gleb Natapov | if ((memory & ~TARGET_PAGE_MASK) == IO_MEM_RAM)
|
3525 | 95c318f5 | Gleb Natapov | memory = IO_MEM_UNASSIGNED; |
3526 | f6405247 | Richard Henderson | memory = (memory >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3527 | db7b5426 | blueswir1 | for (; idx <= eidx; idx++) {
|
3528 | f6405247 | Richard Henderson | mmio->sub_io_index[idx] = memory; |
3529 | f6405247 | Richard Henderson | mmio->region_offset[idx] = region_offset; |
3530 | db7b5426 | blueswir1 | } |
3531 | db7b5426 | blueswir1 | |
3532 | db7b5426 | blueswir1 | return 0; |
3533 | db7b5426 | blueswir1 | } |
3534 | db7b5426 | blueswir1 | |
3535 | f6405247 | Richard Henderson | static subpage_t *subpage_init (target_phys_addr_t base, ram_addr_t *phys,
|
3536 | f6405247 | Richard Henderson | ram_addr_t orig_memory, |
3537 | f6405247 | Richard Henderson | ram_addr_t region_offset) |
3538 | db7b5426 | blueswir1 | { |
3539 | c227f099 | Anthony Liguori | subpage_t *mmio; |
3540 | db7b5426 | blueswir1 | int subpage_memory;
|
3541 | db7b5426 | blueswir1 | |
3542 | c227f099 | Anthony Liguori | mmio = qemu_mallocz(sizeof(subpage_t));
|
3543 | 1eec614b | aliguori | |
3544 | 1eec614b | aliguori | mmio->base = base; |
3545 | 2507c12a | Alexander Graf | subpage_memory = cpu_register_io_memory(subpage_read, subpage_write, mmio, |
3546 | 2507c12a | Alexander Graf | DEVICE_NATIVE_ENDIAN); |
3547 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
3548 | 1eec614b | aliguori | printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__, |
3549 | 1eec614b | aliguori | mmio, base, TARGET_PAGE_SIZE, subpage_memory); |
3550 | db7b5426 | blueswir1 | #endif
|
3551 | 1eec614b | aliguori | *phys = subpage_memory | IO_MEM_SUBPAGE; |
3552 | f6405247 | Richard Henderson | subpage_register(mmio, 0, TARGET_PAGE_SIZE-1, orig_memory, region_offset); |
3553 | db7b5426 | blueswir1 | |
3554 | db7b5426 | blueswir1 | return mmio;
|
3555 | db7b5426 | blueswir1 | } |
3556 | db7b5426 | blueswir1 | |
3557 | 88715657 | aliguori | static int get_free_io_mem_idx(void) |
3558 | 88715657 | aliguori | { |
3559 | 88715657 | aliguori | int i;
|
3560 | 88715657 | aliguori | |
3561 | 88715657 | aliguori | for (i = 0; i<IO_MEM_NB_ENTRIES; i++) |
3562 | 88715657 | aliguori | if (!io_mem_used[i]) {
|
3563 | 88715657 | aliguori | io_mem_used[i] = 1;
|
3564 | 88715657 | aliguori | return i;
|
3565 | 88715657 | aliguori | } |
3566 | c6703b47 | Riku Voipio | fprintf(stderr, "RAN out out io_mem_idx, max %d !\n", IO_MEM_NB_ENTRIES);
|
3567 | 88715657 | aliguori | return -1; |
3568 | 88715657 | aliguori | } |
3569 | 88715657 | aliguori | |
3570 | dd310534 | Alexander Graf | /*
|
3571 | dd310534 | Alexander Graf | * Usually, devices operate in little endian mode. There are devices out
|
3572 | dd310534 | Alexander Graf | * there that operate in big endian too. Each device gets byte swapped
|
3573 | dd310534 | Alexander Graf | * mmio if plugged onto a CPU that does the other endianness.
|
3574 | dd310534 | Alexander Graf | *
|
3575 | dd310534 | Alexander Graf | * CPU Device swap?
|
3576 | dd310534 | Alexander Graf | *
|
3577 | dd310534 | Alexander Graf | * little little no
|
3578 | dd310534 | Alexander Graf | * little big yes
|
3579 | dd310534 | Alexander Graf | * big little yes
|
3580 | dd310534 | Alexander Graf | * big big no
|
3581 | dd310534 | Alexander Graf | */
|
3582 | dd310534 | Alexander Graf | |
3583 | dd310534 | Alexander Graf | typedef struct SwapEndianContainer { |
3584 | dd310534 | Alexander Graf | CPUReadMemoryFunc *read[3];
|
3585 | dd310534 | Alexander Graf | CPUWriteMemoryFunc *write[3];
|
3586 | dd310534 | Alexander Graf | void *opaque;
|
3587 | dd310534 | Alexander Graf | } SwapEndianContainer; |
3588 | dd310534 | Alexander Graf | |
3589 | dd310534 | Alexander Graf | static uint32_t swapendian_mem_readb (void *opaque, target_phys_addr_t addr) |
3590 | dd310534 | Alexander Graf | { |
3591 | dd310534 | Alexander Graf | uint32_t val; |
3592 | dd310534 | Alexander Graf | SwapEndianContainer *c = opaque; |
3593 | dd310534 | Alexander Graf | val = c->read[0](c->opaque, addr);
|
3594 | dd310534 | Alexander Graf | return val;
|
3595 | dd310534 | Alexander Graf | } |
3596 | dd310534 | Alexander Graf | |
3597 | dd310534 | Alexander Graf | static uint32_t swapendian_mem_readw(void *opaque, target_phys_addr_t addr) |
3598 | dd310534 | Alexander Graf | { |
3599 | dd310534 | Alexander Graf | uint32_t val; |
3600 | dd310534 | Alexander Graf | SwapEndianContainer *c = opaque; |
3601 | dd310534 | Alexander Graf | val = bswap16(c->read[1](c->opaque, addr));
|
3602 | dd310534 | Alexander Graf | return val;
|
3603 | dd310534 | Alexander Graf | } |
3604 | dd310534 | Alexander Graf | |
3605 | dd310534 | Alexander Graf | static uint32_t swapendian_mem_readl(void *opaque, target_phys_addr_t addr) |
3606 | dd310534 | Alexander Graf | { |
3607 | dd310534 | Alexander Graf | uint32_t val; |
3608 | dd310534 | Alexander Graf | SwapEndianContainer *c = opaque; |
3609 | dd310534 | Alexander Graf | val = bswap32(c->read[2](c->opaque, addr));
|
3610 | dd310534 | Alexander Graf | return val;
|
3611 | dd310534 | Alexander Graf | } |
3612 | dd310534 | Alexander Graf | |
3613 | dd310534 | Alexander Graf | static CPUReadMemoryFunc * const swapendian_readfn[3]={ |
3614 | dd310534 | Alexander Graf | swapendian_mem_readb, |
3615 | dd310534 | Alexander Graf | swapendian_mem_readw, |
3616 | dd310534 | Alexander Graf | swapendian_mem_readl |
3617 | dd310534 | Alexander Graf | }; |
3618 | dd310534 | Alexander Graf | |
3619 | dd310534 | Alexander Graf | static void swapendian_mem_writeb(void *opaque, target_phys_addr_t addr, |
3620 | dd310534 | Alexander Graf | uint32_t val) |
3621 | dd310534 | Alexander Graf | { |
3622 | dd310534 | Alexander Graf | SwapEndianContainer *c = opaque; |
3623 | dd310534 | Alexander Graf | c->write[0](c->opaque, addr, val);
|
3624 | dd310534 | Alexander Graf | } |
3625 | dd310534 | Alexander Graf | |
3626 | dd310534 | Alexander Graf | static void swapendian_mem_writew(void *opaque, target_phys_addr_t addr, |
3627 | dd310534 | Alexander Graf | uint32_t val) |
3628 | dd310534 | Alexander Graf | { |
3629 | dd310534 | Alexander Graf | SwapEndianContainer *c = opaque; |
3630 | dd310534 | Alexander Graf | c->write[1](c->opaque, addr, bswap16(val));
|
3631 | dd310534 | Alexander Graf | } |
3632 | dd310534 | Alexander Graf | |
3633 | dd310534 | Alexander Graf | static void swapendian_mem_writel(void *opaque, target_phys_addr_t addr, |
3634 | dd310534 | Alexander Graf | uint32_t val) |
3635 | dd310534 | Alexander Graf | { |
3636 | dd310534 | Alexander Graf | SwapEndianContainer *c = opaque; |
3637 | dd310534 | Alexander Graf | c->write[2](c->opaque, addr, bswap32(val));
|
3638 | dd310534 | Alexander Graf | } |
3639 | dd310534 | Alexander Graf | |
3640 | dd310534 | Alexander Graf | static CPUWriteMemoryFunc * const swapendian_writefn[3]={ |
3641 | dd310534 | Alexander Graf | swapendian_mem_writeb, |
3642 | dd310534 | Alexander Graf | swapendian_mem_writew, |
3643 | dd310534 | Alexander Graf | swapendian_mem_writel |
3644 | dd310534 | Alexander Graf | }; |
3645 | dd310534 | Alexander Graf | |
3646 | dd310534 | Alexander Graf | static void swapendian_init(int io_index) |
3647 | dd310534 | Alexander Graf | { |
3648 | dd310534 | Alexander Graf | SwapEndianContainer *c = qemu_malloc(sizeof(SwapEndianContainer));
|
3649 | dd310534 | Alexander Graf | int i;
|
3650 | dd310534 | Alexander Graf | |
3651 | dd310534 | Alexander Graf | /* Swap mmio for big endian targets */
|
3652 | dd310534 | Alexander Graf | c->opaque = io_mem_opaque[io_index]; |
3653 | dd310534 | Alexander Graf | for (i = 0; i < 3; i++) { |
3654 | dd310534 | Alexander Graf | c->read[i] = io_mem_read[io_index][i]; |
3655 | dd310534 | Alexander Graf | c->write[i] = io_mem_write[io_index][i]; |
3656 | dd310534 | Alexander Graf | |
3657 | dd310534 | Alexander Graf | io_mem_read[io_index][i] = swapendian_readfn[i]; |
3658 | dd310534 | Alexander Graf | io_mem_write[io_index][i] = swapendian_writefn[i]; |
3659 | dd310534 | Alexander Graf | } |
3660 | dd310534 | Alexander Graf | io_mem_opaque[io_index] = c; |
3661 | dd310534 | Alexander Graf | } |
3662 | dd310534 | Alexander Graf | |
3663 | dd310534 | Alexander Graf | static void swapendian_del(int io_index) |
3664 | dd310534 | Alexander Graf | { |
3665 | dd310534 | Alexander Graf | if (io_mem_read[io_index][0] == swapendian_readfn[0]) { |
3666 | dd310534 | Alexander Graf | qemu_free(io_mem_opaque[io_index]); |
3667 | dd310534 | Alexander Graf | } |
3668 | dd310534 | Alexander Graf | } |
3669 | dd310534 | Alexander Graf | |
3670 | 33417e70 | bellard | /* mem_read and mem_write are arrays of functions containing the
|
3671 | 33417e70 | bellard | function to access byte (index 0), word (index 1) and dword (index
|
3672 | 0b4e6e3e | Paul Brook | 2). Functions can be omitted with a NULL function pointer.
|
3673 | 3ee89922 | blueswir1 | If io_index is non zero, the corresponding io zone is
|
3674 | 4254fab8 | blueswir1 | modified. If it is zero, a new io zone is allocated. The return
|
3675 | 4254fab8 | blueswir1 | value can be used with cpu_register_physical_memory(). (-1) is
|
3676 | 4254fab8 | blueswir1 | returned if error. */
|
3677 | 1eed09cb | Avi Kivity | static int cpu_register_io_memory_fixed(int io_index, |
3678 | d60efc6b | Blue Swirl | CPUReadMemoryFunc * const *mem_read,
|
3679 | d60efc6b | Blue Swirl | CPUWriteMemoryFunc * const *mem_write,
|
3680 | dd310534 | Alexander Graf | void *opaque, enum device_endian endian) |
3681 | 33417e70 | bellard | { |
3682 | 3cab721d | Richard Henderson | int i;
|
3683 | 3cab721d | Richard Henderson | |
3684 | 33417e70 | bellard | if (io_index <= 0) { |
3685 | 88715657 | aliguori | io_index = get_free_io_mem_idx(); |
3686 | 88715657 | aliguori | if (io_index == -1) |
3687 | 88715657 | aliguori | return io_index;
|
3688 | 33417e70 | bellard | } else {
|
3689 | 1eed09cb | Avi Kivity | io_index >>= IO_MEM_SHIFT; |
3690 | 33417e70 | bellard | if (io_index >= IO_MEM_NB_ENTRIES)
|
3691 | 33417e70 | bellard | return -1; |
3692 | 33417e70 | bellard | } |
3693 | b5ff1b31 | bellard | |
3694 | 3cab721d | Richard Henderson | for (i = 0; i < 3; ++i) { |
3695 | 3cab721d | Richard Henderson | io_mem_read[io_index][i] |
3696 | 3cab721d | Richard Henderson | = (mem_read[i] ? mem_read[i] : unassigned_mem_read[i]); |
3697 | 3cab721d | Richard Henderson | } |
3698 | 3cab721d | Richard Henderson | for (i = 0; i < 3; ++i) { |
3699 | 3cab721d | Richard Henderson | io_mem_write[io_index][i] |
3700 | 3cab721d | Richard Henderson | = (mem_write[i] ? mem_write[i] : unassigned_mem_write[i]); |
3701 | 3cab721d | Richard Henderson | } |
3702 | a4193c8a | bellard | io_mem_opaque[io_index] = opaque; |
3703 | f6405247 | Richard Henderson | |
3704 | dd310534 | Alexander Graf | switch (endian) {
|
3705 | dd310534 | Alexander Graf | case DEVICE_BIG_ENDIAN:
|
3706 | dd310534 | Alexander Graf | #ifndef TARGET_WORDS_BIGENDIAN
|
3707 | dd310534 | Alexander Graf | swapendian_init(io_index); |
3708 | dd310534 | Alexander Graf | #endif
|
3709 | dd310534 | Alexander Graf | break;
|
3710 | dd310534 | Alexander Graf | case DEVICE_LITTLE_ENDIAN:
|
3711 | dd310534 | Alexander Graf | #ifdef TARGET_WORDS_BIGENDIAN
|
3712 | dd310534 | Alexander Graf | swapendian_init(io_index); |
3713 | dd310534 | Alexander Graf | #endif
|
3714 | dd310534 | Alexander Graf | break;
|
3715 | dd310534 | Alexander Graf | case DEVICE_NATIVE_ENDIAN:
|
3716 | dd310534 | Alexander Graf | default:
|
3717 | dd310534 | Alexander Graf | break;
|
3718 | dd310534 | Alexander Graf | } |
3719 | dd310534 | Alexander Graf | |
3720 | f6405247 | Richard Henderson | return (io_index << IO_MEM_SHIFT);
|
3721 | 33417e70 | bellard | } |
3722 | 61382a50 | bellard | |
3723 | d60efc6b | Blue Swirl | int cpu_register_io_memory(CPUReadMemoryFunc * const *mem_read, |
3724 | d60efc6b | Blue Swirl | CPUWriteMemoryFunc * const *mem_write,
|
3725 | dd310534 | Alexander Graf | void *opaque, enum device_endian endian) |
3726 | 1eed09cb | Avi Kivity | { |
3727 | 2507c12a | Alexander Graf | return cpu_register_io_memory_fixed(0, mem_read, mem_write, opaque, endian); |
3728 | 1eed09cb | Avi Kivity | } |
3729 | 1eed09cb | Avi Kivity | |
3730 | 88715657 | aliguori | void cpu_unregister_io_memory(int io_table_address) |
3731 | 88715657 | aliguori | { |
3732 | 88715657 | aliguori | int i;
|
3733 | 88715657 | aliguori | int io_index = io_table_address >> IO_MEM_SHIFT;
|
3734 | 88715657 | aliguori | |
3735 | dd310534 | Alexander Graf | swapendian_del(io_index); |
3736 | dd310534 | Alexander Graf | |
3737 | 88715657 | aliguori | for (i=0;i < 3; i++) { |
3738 | 88715657 | aliguori | io_mem_read[io_index][i] = unassigned_mem_read[i]; |
3739 | 88715657 | aliguori | io_mem_write[io_index][i] = unassigned_mem_write[i]; |
3740 | 88715657 | aliguori | } |
3741 | 88715657 | aliguori | io_mem_opaque[io_index] = NULL;
|
3742 | 88715657 | aliguori | io_mem_used[io_index] = 0;
|
3743 | 88715657 | aliguori | } |
3744 | 88715657 | aliguori | |
3745 | e9179ce1 | Avi Kivity | static void io_mem_init(void) |
3746 | e9179ce1 | Avi Kivity | { |
3747 | e9179ce1 | Avi Kivity | int i;
|
3748 | e9179ce1 | Avi Kivity | |
3749 | 2507c12a | Alexander Graf | cpu_register_io_memory_fixed(IO_MEM_ROM, error_mem_read, |
3750 | 2507c12a | Alexander Graf | unassigned_mem_write, NULL,
|
3751 | 2507c12a | Alexander Graf | DEVICE_NATIVE_ENDIAN); |
3752 | 2507c12a | Alexander Graf | cpu_register_io_memory_fixed(IO_MEM_UNASSIGNED, unassigned_mem_read, |
3753 | 2507c12a | Alexander Graf | unassigned_mem_write, NULL,
|
3754 | 2507c12a | Alexander Graf | DEVICE_NATIVE_ENDIAN); |
3755 | 2507c12a | Alexander Graf | cpu_register_io_memory_fixed(IO_MEM_NOTDIRTY, error_mem_read, |
3756 | 2507c12a | Alexander Graf | notdirty_mem_write, NULL,
|
3757 | 2507c12a | Alexander Graf | DEVICE_NATIVE_ENDIAN); |
3758 | e9179ce1 | Avi Kivity | for (i=0; i<5; i++) |
3759 | e9179ce1 | Avi Kivity | io_mem_used[i] = 1;
|
3760 | e9179ce1 | Avi Kivity | |
3761 | e9179ce1 | Avi Kivity | io_mem_watch = cpu_register_io_memory(watch_mem_read, |
3762 | 2507c12a | Alexander Graf | watch_mem_write, NULL,
|
3763 | 2507c12a | Alexander Graf | DEVICE_NATIVE_ENDIAN); |
3764 | e9179ce1 | Avi Kivity | } |
3765 | e9179ce1 | Avi Kivity | |
3766 | e2eef170 | pbrook | #endif /* !defined(CONFIG_USER_ONLY) */ |
3767 | e2eef170 | pbrook | |
3768 | 13eb76e0 | bellard | /* physical memory access (slow version, mainly for debug) */
|
3769 | 13eb76e0 | bellard | #if defined(CONFIG_USER_ONLY)
|
3770 | a68fe89c | Paul Brook | int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
|
3771 | a68fe89c | Paul Brook | uint8_t *buf, int len, int is_write) |
3772 | 13eb76e0 | bellard | { |
3773 | 13eb76e0 | bellard | int l, flags;
|
3774 | 13eb76e0 | bellard | target_ulong page; |
3775 | 53a5960a | pbrook | void * p;
|
3776 | 13eb76e0 | bellard | |
3777 | 13eb76e0 | bellard | while (len > 0) { |
3778 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
3779 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
3780 | 13eb76e0 | bellard | if (l > len)
|
3781 | 13eb76e0 | bellard | l = len; |
3782 | 13eb76e0 | bellard | flags = page_get_flags(page); |
3783 | 13eb76e0 | bellard | if (!(flags & PAGE_VALID))
|
3784 | a68fe89c | Paul Brook | return -1; |
3785 | 13eb76e0 | bellard | if (is_write) {
|
3786 | 13eb76e0 | bellard | if (!(flags & PAGE_WRITE))
|
3787 | a68fe89c | Paul Brook | return -1; |
3788 | 579a97f7 | bellard | /* XXX: this code should not depend on lock_user */
|
3789 | 72fb7daa | aurel32 | if (!(p = lock_user(VERIFY_WRITE, addr, l, 0))) |
3790 | a68fe89c | Paul Brook | return -1; |
3791 | 72fb7daa | aurel32 | memcpy(p, buf, l); |
3792 | 72fb7daa | aurel32 | unlock_user(p, addr, l); |
3793 | 13eb76e0 | bellard | } else {
|
3794 | 13eb76e0 | bellard | if (!(flags & PAGE_READ))
|
3795 | a68fe89c | Paul Brook | return -1; |
3796 | 579a97f7 | bellard | /* XXX: this code should not depend on lock_user */
|
3797 | 72fb7daa | aurel32 | if (!(p = lock_user(VERIFY_READ, addr, l, 1))) |
3798 | a68fe89c | Paul Brook | return -1; |
3799 | 72fb7daa | aurel32 | memcpy(buf, p, l); |
3800 | 5b257578 | aurel32 | unlock_user(p, addr, 0);
|
3801 | 13eb76e0 | bellard | } |
3802 | 13eb76e0 | bellard | len -= l; |
3803 | 13eb76e0 | bellard | buf += l; |
3804 | 13eb76e0 | bellard | addr += l; |
3805 | 13eb76e0 | bellard | } |
3806 | a68fe89c | Paul Brook | return 0; |
3807 | 13eb76e0 | bellard | } |
3808 | 8df1cd07 | bellard | |
3809 | 13eb76e0 | bellard | #else
|
3810 | c227f099 | Anthony Liguori | void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
|
3811 | 13eb76e0 | bellard | int len, int is_write) |
3812 | 13eb76e0 | bellard | { |
3813 | 13eb76e0 | bellard | int l, io_index;
|
3814 | 13eb76e0 | bellard | uint8_t *ptr; |
3815 | 13eb76e0 | bellard | uint32_t val; |
3816 | c227f099 | Anthony Liguori | target_phys_addr_t page; |
3817 | 2e12669a | bellard | unsigned long pd; |
3818 | 92e873b9 | bellard | PhysPageDesc *p; |
3819 | 3b46e624 | ths | |
3820 | 13eb76e0 | bellard | while (len > 0) { |
3821 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
3822 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
3823 | 13eb76e0 | bellard | if (l > len)
|
3824 | 13eb76e0 | bellard | l = len; |
3825 | 92e873b9 | bellard | p = phys_page_find(page >> TARGET_PAGE_BITS); |
3826 | 13eb76e0 | bellard | if (!p) {
|
3827 | 13eb76e0 | bellard | pd = IO_MEM_UNASSIGNED; |
3828 | 13eb76e0 | bellard | } else {
|
3829 | 13eb76e0 | bellard | pd = p->phys_offset; |
3830 | 13eb76e0 | bellard | } |
3831 | 3b46e624 | ths | |
3832 | 13eb76e0 | bellard | if (is_write) {
|
3833 | 3a7d929e | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
3834 | c227f099 | Anthony Liguori | target_phys_addr_t addr1 = addr; |
3835 | 13eb76e0 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3836 | 8da3ff18 | pbrook | if (p)
|
3837 | 6c2934db | aurel32 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3838 | 6a00d601 | bellard | /* XXX: could force cpu_single_env to NULL to avoid
|
3839 | 6a00d601 | bellard | potential bugs */
|
3840 | 6c2934db | aurel32 | if (l >= 4 && ((addr1 & 3) == 0)) { |
3841 | 1c213d19 | bellard | /* 32 bit write access */
|
3842 | c27004ec | bellard | val = ldl_p(buf); |
3843 | 6c2934db | aurel32 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr1, val);
|
3844 | 13eb76e0 | bellard | l = 4;
|
3845 | 6c2934db | aurel32 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
3846 | 1c213d19 | bellard | /* 16 bit write access */
|
3847 | c27004ec | bellard | val = lduw_p(buf); |
3848 | 6c2934db | aurel32 | io_mem_write[io_index][1](io_mem_opaque[io_index], addr1, val);
|
3849 | 13eb76e0 | bellard | l = 2;
|
3850 | 13eb76e0 | bellard | } else {
|
3851 | 1c213d19 | bellard | /* 8 bit write access */
|
3852 | c27004ec | bellard | val = ldub_p(buf); |
3853 | 6c2934db | aurel32 | io_mem_write[io_index][0](io_mem_opaque[io_index], addr1, val);
|
3854 | 13eb76e0 | bellard | l = 1;
|
3855 | 13eb76e0 | bellard | } |
3856 | 13eb76e0 | bellard | } else {
|
3857 | b448f2f3 | bellard | unsigned long addr1; |
3858 | b448f2f3 | bellard | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
3859 | 13eb76e0 | bellard | /* RAM case */
|
3860 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
3861 | 13eb76e0 | bellard | memcpy(ptr, buf, l); |
3862 | 3a7d929e | bellard | if (!cpu_physical_memory_is_dirty(addr1)) {
|
3863 | 3a7d929e | bellard | /* invalidate code */
|
3864 | 3a7d929e | bellard | tb_invalidate_phys_page_range(addr1, addr1 + l, 0);
|
3865 | 3a7d929e | bellard | /* set dirty bit */
|
3866 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags( |
3867 | f7c11b53 | Yoshiaki Tamura | addr1, (0xff & ~CODE_DIRTY_FLAG));
|
3868 | 3a7d929e | bellard | } |
3869 | 050a0ddf | Anthony PERARD | qemu_put_ram_ptr(ptr); |
3870 | 13eb76e0 | bellard | } |
3871 | 13eb76e0 | bellard | } else {
|
3872 | 5fafdf24 | ths | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
3873 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
3874 | c227f099 | Anthony Liguori | target_phys_addr_t addr1 = addr; |
3875 | 13eb76e0 | bellard | /* I/O case */
|
3876 | 13eb76e0 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3877 | 8da3ff18 | pbrook | if (p)
|
3878 | 6c2934db | aurel32 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3879 | 6c2934db | aurel32 | if (l >= 4 && ((addr1 & 3) == 0)) { |
3880 | 13eb76e0 | bellard | /* 32 bit read access */
|
3881 | 6c2934db | aurel32 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr1);
|
3882 | c27004ec | bellard | stl_p(buf, val); |
3883 | 13eb76e0 | bellard | l = 4;
|
3884 | 6c2934db | aurel32 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
3885 | 13eb76e0 | bellard | /* 16 bit read access */
|
3886 | 6c2934db | aurel32 | val = io_mem_read[io_index][1](io_mem_opaque[io_index], addr1);
|
3887 | c27004ec | bellard | stw_p(buf, val); |
3888 | 13eb76e0 | bellard | l = 2;
|
3889 | 13eb76e0 | bellard | } else {
|
3890 | 1c213d19 | bellard | /* 8 bit read access */
|
3891 | 6c2934db | aurel32 | val = io_mem_read[io_index][0](io_mem_opaque[io_index], addr1);
|
3892 | c27004ec | bellard | stb_p(buf, val); |
3893 | 13eb76e0 | bellard | l = 1;
|
3894 | 13eb76e0 | bellard | } |
3895 | 13eb76e0 | bellard | } else {
|
3896 | 13eb76e0 | bellard | /* RAM case */
|
3897 | 050a0ddf | Anthony PERARD | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK); |
3898 | 050a0ddf | Anthony PERARD | memcpy(buf, ptr + (addr & ~TARGET_PAGE_MASK), l); |
3899 | 050a0ddf | Anthony PERARD | qemu_put_ram_ptr(ptr); |
3900 | 13eb76e0 | bellard | } |
3901 | 13eb76e0 | bellard | } |
3902 | 13eb76e0 | bellard | len -= l; |
3903 | 13eb76e0 | bellard | buf += l; |
3904 | 13eb76e0 | bellard | addr += l; |
3905 | 13eb76e0 | bellard | } |
3906 | 13eb76e0 | bellard | } |
3907 | 8df1cd07 | bellard | |
3908 | d0ecd2aa | bellard | /* used for ROM loading : can write in RAM and ROM */
|
3909 | c227f099 | Anthony Liguori | void cpu_physical_memory_write_rom(target_phys_addr_t addr,
|
3910 | d0ecd2aa | bellard | const uint8_t *buf, int len) |
3911 | d0ecd2aa | bellard | { |
3912 | d0ecd2aa | bellard | int l;
|
3913 | d0ecd2aa | bellard | uint8_t *ptr; |
3914 | c227f099 | Anthony Liguori | target_phys_addr_t page; |
3915 | d0ecd2aa | bellard | unsigned long pd; |
3916 | d0ecd2aa | bellard | PhysPageDesc *p; |
3917 | 3b46e624 | ths | |
3918 | d0ecd2aa | bellard | while (len > 0) { |
3919 | d0ecd2aa | bellard | page = addr & TARGET_PAGE_MASK; |
3920 | d0ecd2aa | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
3921 | d0ecd2aa | bellard | if (l > len)
|
3922 | d0ecd2aa | bellard | l = len; |
3923 | d0ecd2aa | bellard | p = phys_page_find(page >> TARGET_PAGE_BITS); |
3924 | d0ecd2aa | bellard | if (!p) {
|
3925 | d0ecd2aa | bellard | pd = IO_MEM_UNASSIGNED; |
3926 | d0ecd2aa | bellard | } else {
|
3927 | d0ecd2aa | bellard | pd = p->phys_offset; |
3928 | d0ecd2aa | bellard | } |
3929 | 3b46e624 | ths | |
3930 | d0ecd2aa | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM &&
|
3931 | 2a4188a3 | bellard | (pd & ~TARGET_PAGE_MASK) != IO_MEM_ROM && |
3932 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
3933 | d0ecd2aa | bellard | /* do nothing */
|
3934 | d0ecd2aa | bellard | } else {
|
3935 | d0ecd2aa | bellard | unsigned long addr1; |
3936 | d0ecd2aa | bellard | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
3937 | d0ecd2aa | bellard | /* ROM/RAM case */
|
3938 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
3939 | d0ecd2aa | bellard | memcpy(ptr, buf, l); |
3940 | 050a0ddf | Anthony PERARD | qemu_put_ram_ptr(ptr); |
3941 | d0ecd2aa | bellard | } |
3942 | d0ecd2aa | bellard | len -= l; |
3943 | d0ecd2aa | bellard | buf += l; |
3944 | d0ecd2aa | bellard | addr += l; |
3945 | d0ecd2aa | bellard | } |
3946 | d0ecd2aa | bellard | } |
3947 | d0ecd2aa | bellard | |
3948 | 6d16c2f8 | aliguori | typedef struct { |
3949 | 6d16c2f8 | aliguori | void *buffer;
|
3950 | c227f099 | Anthony Liguori | target_phys_addr_t addr; |
3951 | c227f099 | Anthony Liguori | target_phys_addr_t len; |
3952 | 6d16c2f8 | aliguori | } BounceBuffer; |
3953 | 6d16c2f8 | aliguori | |
3954 | 6d16c2f8 | aliguori | static BounceBuffer bounce;
|
3955 | 6d16c2f8 | aliguori | |
3956 | ba223c29 | aliguori | typedef struct MapClient { |
3957 | ba223c29 | aliguori | void *opaque;
|
3958 | ba223c29 | aliguori | void (*callback)(void *opaque); |
3959 | 72cf2d4f | Blue Swirl | QLIST_ENTRY(MapClient) link; |
3960 | ba223c29 | aliguori | } MapClient; |
3961 | ba223c29 | aliguori | |
3962 | 72cf2d4f | Blue Swirl | static QLIST_HEAD(map_client_list, MapClient) map_client_list
|
3963 | 72cf2d4f | Blue Swirl | = QLIST_HEAD_INITIALIZER(map_client_list); |
3964 | ba223c29 | aliguori | |
3965 | ba223c29 | aliguori | void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque)) |
3966 | ba223c29 | aliguori | { |
3967 | ba223c29 | aliguori | MapClient *client = qemu_malloc(sizeof(*client));
|
3968 | ba223c29 | aliguori | |
3969 | ba223c29 | aliguori | client->opaque = opaque; |
3970 | ba223c29 | aliguori | client->callback = callback; |
3971 | 72cf2d4f | Blue Swirl | QLIST_INSERT_HEAD(&map_client_list, client, link); |
3972 | ba223c29 | aliguori | return client;
|
3973 | ba223c29 | aliguori | } |
3974 | ba223c29 | aliguori | |
3975 | ba223c29 | aliguori | void cpu_unregister_map_client(void *_client) |
3976 | ba223c29 | aliguori | { |
3977 | ba223c29 | aliguori | MapClient *client = (MapClient *)_client; |
3978 | ba223c29 | aliguori | |
3979 | 72cf2d4f | Blue Swirl | QLIST_REMOVE(client, link); |
3980 | 34d5e948 | Isaku Yamahata | qemu_free(client); |
3981 | ba223c29 | aliguori | } |
3982 | ba223c29 | aliguori | |
3983 | ba223c29 | aliguori | static void cpu_notify_map_clients(void) |
3984 | ba223c29 | aliguori | { |
3985 | ba223c29 | aliguori | MapClient *client; |
3986 | ba223c29 | aliguori | |
3987 | 72cf2d4f | Blue Swirl | while (!QLIST_EMPTY(&map_client_list)) {
|
3988 | 72cf2d4f | Blue Swirl | client = QLIST_FIRST(&map_client_list); |
3989 | ba223c29 | aliguori | client->callback(client->opaque); |
3990 | 34d5e948 | Isaku Yamahata | cpu_unregister_map_client(client); |
3991 | ba223c29 | aliguori | } |
3992 | ba223c29 | aliguori | } |
3993 | ba223c29 | aliguori | |
3994 | 6d16c2f8 | aliguori | /* Map a physical memory region into a host virtual address.
|
3995 | 6d16c2f8 | aliguori | * May map a subset of the requested range, given by and returned in *plen.
|
3996 | 6d16c2f8 | aliguori | * May return NULL if resources needed to perform the mapping are exhausted.
|
3997 | 6d16c2f8 | aliguori | * Use only for reads OR writes - not for read-modify-write operations.
|
3998 | ba223c29 | aliguori | * Use cpu_register_map_client() to know when retrying the map operation is
|
3999 | ba223c29 | aliguori | * likely to succeed.
|
4000 | 6d16c2f8 | aliguori | */
|
4001 | c227f099 | Anthony Liguori | void *cpu_physical_memory_map(target_phys_addr_t addr,
|
4002 | c227f099 | Anthony Liguori | target_phys_addr_t *plen, |
4003 | 6d16c2f8 | aliguori | int is_write)
|
4004 | 6d16c2f8 | aliguori | { |
4005 | c227f099 | Anthony Liguori | target_phys_addr_t len = *plen; |
4006 | c227f099 | Anthony Liguori | target_phys_addr_t done = 0;
|
4007 | 6d16c2f8 | aliguori | int l;
|
4008 | 6d16c2f8 | aliguori | uint8_t *ret = NULL;
|
4009 | 6d16c2f8 | aliguori | uint8_t *ptr; |
4010 | c227f099 | Anthony Liguori | target_phys_addr_t page; |
4011 | 6d16c2f8 | aliguori | unsigned long pd; |
4012 | 6d16c2f8 | aliguori | PhysPageDesc *p; |
4013 | 6d16c2f8 | aliguori | unsigned long addr1; |
4014 | 6d16c2f8 | aliguori | |
4015 | 6d16c2f8 | aliguori | while (len > 0) { |
4016 | 6d16c2f8 | aliguori | page = addr & TARGET_PAGE_MASK; |
4017 | 6d16c2f8 | aliguori | l = (page + TARGET_PAGE_SIZE) - addr; |
4018 | 6d16c2f8 | aliguori | if (l > len)
|
4019 | 6d16c2f8 | aliguori | l = len; |
4020 | 6d16c2f8 | aliguori | p = phys_page_find(page >> TARGET_PAGE_BITS); |
4021 | 6d16c2f8 | aliguori | if (!p) {
|
4022 | 6d16c2f8 | aliguori | pd = IO_MEM_UNASSIGNED; |
4023 | 6d16c2f8 | aliguori | } else {
|
4024 | 6d16c2f8 | aliguori | pd = p->phys_offset; |
4025 | 6d16c2f8 | aliguori | } |
4026 | 6d16c2f8 | aliguori | |
4027 | 6d16c2f8 | aliguori | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
4028 | 6d16c2f8 | aliguori | if (done || bounce.buffer) {
|
4029 | 6d16c2f8 | aliguori | break;
|
4030 | 6d16c2f8 | aliguori | } |
4031 | 6d16c2f8 | aliguori | bounce.buffer = qemu_memalign(TARGET_PAGE_SIZE, TARGET_PAGE_SIZE); |
4032 | 6d16c2f8 | aliguori | bounce.addr = addr; |
4033 | 6d16c2f8 | aliguori | bounce.len = l; |
4034 | 6d16c2f8 | aliguori | if (!is_write) {
|
4035 | 54f7b4a3 | Stefan Weil | cpu_physical_memory_read(addr, bounce.buffer, l); |
4036 | 6d16c2f8 | aliguori | } |
4037 | 6d16c2f8 | aliguori | ptr = bounce.buffer; |
4038 | 6d16c2f8 | aliguori | } else {
|
4039 | 6d16c2f8 | aliguori | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
4040 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
4041 | 6d16c2f8 | aliguori | } |
4042 | 6d16c2f8 | aliguori | if (!done) {
|
4043 | 6d16c2f8 | aliguori | ret = ptr; |
4044 | 6d16c2f8 | aliguori | } else if (ret + done != ptr) { |
4045 | 6d16c2f8 | aliguori | break;
|
4046 | 6d16c2f8 | aliguori | } |
4047 | 6d16c2f8 | aliguori | |
4048 | 6d16c2f8 | aliguori | len -= l; |
4049 | 6d16c2f8 | aliguori | addr += l; |
4050 | 6d16c2f8 | aliguori | done += l; |
4051 | 6d16c2f8 | aliguori | } |
4052 | 6d16c2f8 | aliguori | *plen = done; |
4053 | 6d16c2f8 | aliguori | return ret;
|
4054 | 6d16c2f8 | aliguori | } |
4055 | 6d16c2f8 | aliguori | |
4056 | 6d16c2f8 | aliguori | /* Unmaps a memory region previously mapped by cpu_physical_memory_map().
|
4057 | 6d16c2f8 | aliguori | * Will also mark the memory as dirty if is_write == 1. access_len gives
|
4058 | 6d16c2f8 | aliguori | * the amount of memory that was actually read or written by the caller.
|
4059 | 6d16c2f8 | aliguori | */
|
4060 | c227f099 | Anthony Liguori | void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len, |
4061 | c227f099 | Anthony Liguori | int is_write, target_phys_addr_t access_len)
|
4062 | 6d16c2f8 | aliguori | { |
4063 | 6d16c2f8 | aliguori | if (buffer != bounce.buffer) {
|
4064 | 6d16c2f8 | aliguori | if (is_write) {
|
4065 | e890261f | Marcelo Tosatti | ram_addr_t addr1 = qemu_ram_addr_from_host_nofail(buffer); |
4066 | 6d16c2f8 | aliguori | while (access_len) {
|
4067 | 6d16c2f8 | aliguori | unsigned l;
|
4068 | 6d16c2f8 | aliguori | l = TARGET_PAGE_SIZE; |
4069 | 6d16c2f8 | aliguori | if (l > access_len)
|
4070 | 6d16c2f8 | aliguori | l = access_len; |
4071 | 6d16c2f8 | aliguori | if (!cpu_physical_memory_is_dirty(addr1)) {
|
4072 | 6d16c2f8 | aliguori | /* invalidate code */
|
4073 | 6d16c2f8 | aliguori | tb_invalidate_phys_page_range(addr1, addr1 + l, 0);
|
4074 | 6d16c2f8 | aliguori | /* set dirty bit */
|
4075 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags( |
4076 | f7c11b53 | Yoshiaki Tamura | addr1, (0xff & ~CODE_DIRTY_FLAG));
|
4077 | 6d16c2f8 | aliguori | } |
4078 | 6d16c2f8 | aliguori | addr1 += l; |
4079 | 6d16c2f8 | aliguori | access_len -= l; |
4080 | 6d16c2f8 | aliguori | } |
4081 | 6d16c2f8 | aliguori | } |
4082 | 050a0ddf | Anthony PERARD | if (xen_mapcache_enabled()) {
|
4083 | 050a0ddf | Anthony PERARD | uint8_t *buffer1 = buffer; |
4084 | 050a0ddf | Anthony PERARD | uint8_t *end_buffer = buffer + len; |
4085 | 050a0ddf | Anthony PERARD | |
4086 | 050a0ddf | Anthony PERARD | while (buffer1 < end_buffer) {
|
4087 | 050a0ddf | Anthony PERARD | qemu_put_ram_ptr(buffer1); |
4088 | 050a0ddf | Anthony PERARD | buffer1 += TARGET_PAGE_SIZE; |
4089 | 050a0ddf | Anthony PERARD | } |
4090 | 050a0ddf | Anthony PERARD | } |
4091 | 6d16c2f8 | aliguori | return;
|
4092 | 6d16c2f8 | aliguori | } |
4093 | 6d16c2f8 | aliguori | if (is_write) {
|
4094 | 6d16c2f8 | aliguori | cpu_physical_memory_write(bounce.addr, bounce.buffer, access_len); |
4095 | 6d16c2f8 | aliguori | } |
4096 | f8a83245 | Herve Poussineau | qemu_vfree(bounce.buffer); |
4097 | 6d16c2f8 | aliguori | bounce.buffer = NULL;
|
4098 | ba223c29 | aliguori | cpu_notify_map_clients(); |
4099 | 6d16c2f8 | aliguori | } |
4100 | d0ecd2aa | bellard | |
4101 | 8df1cd07 | bellard | /* warning: addr must be aligned */
|
4102 | c227f099 | Anthony Liguori | uint32_t ldl_phys(target_phys_addr_t addr) |
4103 | 8df1cd07 | bellard | { |
4104 | 8df1cd07 | bellard | int io_index;
|
4105 | 8df1cd07 | bellard | uint8_t *ptr; |
4106 | 8df1cd07 | bellard | uint32_t val; |
4107 | 8df1cd07 | bellard | unsigned long pd; |
4108 | 8df1cd07 | bellard | PhysPageDesc *p; |
4109 | 8df1cd07 | bellard | |
4110 | 8df1cd07 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
4111 | 8df1cd07 | bellard | if (!p) {
|
4112 | 8df1cd07 | bellard | pd = IO_MEM_UNASSIGNED; |
4113 | 8df1cd07 | bellard | } else {
|
4114 | 8df1cd07 | bellard | pd = p->phys_offset; |
4115 | 8df1cd07 | bellard | } |
4116 | 3b46e624 | ths | |
4117 | 5fafdf24 | ths | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
4118 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
4119 | 8df1cd07 | bellard | /* I/O case */
|
4120 | 8df1cd07 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
4121 | 8da3ff18 | pbrook | if (p)
|
4122 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
4123 | 8df1cd07 | bellard | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr);
|
4124 | 8df1cd07 | bellard | } else {
|
4125 | 8df1cd07 | bellard | /* RAM case */
|
4126 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
4127 | 8df1cd07 | bellard | (addr & ~TARGET_PAGE_MASK); |
4128 | 8df1cd07 | bellard | val = ldl_p(ptr); |
4129 | 8df1cd07 | bellard | } |
4130 | 8df1cd07 | bellard | return val;
|
4131 | 8df1cd07 | bellard | } |
4132 | 8df1cd07 | bellard | |
4133 | 84b7b8e7 | bellard | /* warning: addr must be aligned */
|
4134 | c227f099 | Anthony Liguori | uint64_t ldq_phys(target_phys_addr_t addr) |
4135 | 84b7b8e7 | bellard | { |
4136 | 84b7b8e7 | bellard | int io_index;
|
4137 | 84b7b8e7 | bellard | uint8_t *ptr; |
4138 | 84b7b8e7 | bellard | uint64_t val; |
4139 | 84b7b8e7 | bellard | unsigned long pd; |
4140 | 84b7b8e7 | bellard | PhysPageDesc *p; |
4141 | 84b7b8e7 | bellard | |
4142 | 84b7b8e7 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
4143 | 84b7b8e7 | bellard | if (!p) {
|
4144 | 84b7b8e7 | bellard | pd = IO_MEM_UNASSIGNED; |
4145 | 84b7b8e7 | bellard | } else {
|
4146 | 84b7b8e7 | bellard | pd = p->phys_offset; |
4147 | 84b7b8e7 | bellard | } |
4148 | 3b46e624 | ths | |
4149 | 2a4188a3 | bellard | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
4150 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
4151 | 84b7b8e7 | bellard | /* I/O case */
|
4152 | 84b7b8e7 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
4153 | 8da3ff18 | pbrook | if (p)
|
4154 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
4155 | 84b7b8e7 | bellard | #ifdef TARGET_WORDS_BIGENDIAN
|
4156 | 84b7b8e7 | bellard | val = (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr) << 32; |
4157 | 84b7b8e7 | bellard | val |= io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4); |
4158 | 84b7b8e7 | bellard | #else
|
4159 | 84b7b8e7 | bellard | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr);
|
4160 | 84b7b8e7 | bellard | val |= (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4) << 32; |
4161 | 84b7b8e7 | bellard | #endif
|
4162 | 84b7b8e7 | bellard | } else {
|
4163 | 84b7b8e7 | bellard | /* RAM case */
|
4164 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
4165 | 84b7b8e7 | bellard | (addr & ~TARGET_PAGE_MASK); |
4166 | 84b7b8e7 | bellard | val = ldq_p(ptr); |
4167 | 84b7b8e7 | bellard | } |
4168 | 84b7b8e7 | bellard | return val;
|
4169 | 84b7b8e7 | bellard | } |
4170 | 84b7b8e7 | bellard | |
4171 | aab33094 | bellard | /* XXX: optimize */
|
4172 | c227f099 | Anthony Liguori | uint32_t ldub_phys(target_phys_addr_t addr) |
4173 | aab33094 | bellard | { |
4174 | aab33094 | bellard | uint8_t val; |
4175 | aab33094 | bellard | cpu_physical_memory_read(addr, &val, 1);
|
4176 | aab33094 | bellard | return val;
|
4177 | aab33094 | bellard | } |
4178 | aab33094 | bellard | |
4179 | 733f0b02 | Michael S. Tsirkin | /* warning: addr must be aligned */
|
4180 | c227f099 | Anthony Liguori | uint32_t lduw_phys(target_phys_addr_t addr) |
4181 | aab33094 | bellard | { |
4182 | 733f0b02 | Michael S. Tsirkin | int io_index;
|
4183 | 733f0b02 | Michael S. Tsirkin | uint8_t *ptr; |
4184 | 733f0b02 | Michael S. Tsirkin | uint64_t val; |
4185 | 733f0b02 | Michael S. Tsirkin | unsigned long pd; |
4186 | 733f0b02 | Michael S. Tsirkin | PhysPageDesc *p; |
4187 | 733f0b02 | Michael S. Tsirkin | |
4188 | 733f0b02 | Michael S. Tsirkin | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
4189 | 733f0b02 | Michael S. Tsirkin | if (!p) {
|
4190 | 733f0b02 | Michael S. Tsirkin | pd = IO_MEM_UNASSIGNED; |
4191 | 733f0b02 | Michael S. Tsirkin | } else {
|
4192 | 733f0b02 | Michael S. Tsirkin | pd = p->phys_offset; |
4193 | 733f0b02 | Michael S. Tsirkin | } |
4194 | 733f0b02 | Michael S. Tsirkin | |
4195 | 733f0b02 | Michael S. Tsirkin | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
4196 | 733f0b02 | Michael S. Tsirkin | !(pd & IO_MEM_ROMD)) { |
4197 | 733f0b02 | Michael S. Tsirkin | /* I/O case */
|
4198 | 733f0b02 | Michael S. Tsirkin | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
4199 | 733f0b02 | Michael S. Tsirkin | if (p)
|
4200 | 733f0b02 | Michael S. Tsirkin | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
4201 | 733f0b02 | Michael S. Tsirkin | val = io_mem_read[io_index][1](io_mem_opaque[io_index], addr);
|
4202 | 733f0b02 | Michael S. Tsirkin | } else {
|
4203 | 733f0b02 | Michael S. Tsirkin | /* RAM case */
|
4204 | 733f0b02 | Michael S. Tsirkin | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
4205 | 733f0b02 | Michael S. Tsirkin | (addr & ~TARGET_PAGE_MASK); |
4206 | 733f0b02 | Michael S. Tsirkin | val = lduw_p(ptr); |
4207 | 733f0b02 | Michael S. Tsirkin | } |
4208 | 733f0b02 | Michael S. Tsirkin | return val;
|
4209 | aab33094 | bellard | } |
4210 | aab33094 | bellard | |
4211 | 8df1cd07 | bellard | /* warning: addr must be aligned. The ram page is not masked as dirty
|
4212 | 8df1cd07 | bellard | and the code inside is not invalidated. It is useful if the dirty
|
4213 | 8df1cd07 | bellard | bits are used to track modified PTEs */
|
4214 | c227f099 | Anthony Liguori | void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val)
|
4215 | 8df1cd07 | bellard | { |
4216 | 8df1cd07 | bellard | int io_index;
|
4217 | 8df1cd07 | bellard | uint8_t *ptr; |
4218 | 8df1cd07 | bellard | unsigned long pd; |
4219 | 8df1cd07 | bellard | PhysPageDesc *p; |
4220 | 8df1cd07 | bellard | |
4221 | 8df1cd07 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
4222 | 8df1cd07 | bellard | if (!p) {
|
4223 | 8df1cd07 | bellard | pd = IO_MEM_UNASSIGNED; |
4224 | 8df1cd07 | bellard | } else {
|
4225 | 8df1cd07 | bellard | pd = p->phys_offset; |
4226 | 8df1cd07 | bellard | } |
4227 | 3b46e624 | ths | |
4228 | 3a7d929e | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
4229 | 8df1cd07 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
4230 | 8da3ff18 | pbrook | if (p)
|
4231 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
4232 | 8df1cd07 | bellard | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
|
4233 | 8df1cd07 | bellard | } else {
|
4234 | 74576198 | aliguori | unsigned long addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
4235 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
4236 | 8df1cd07 | bellard | stl_p(ptr, val); |
4237 | 74576198 | aliguori | |
4238 | 74576198 | aliguori | if (unlikely(in_migration)) {
|
4239 | 74576198 | aliguori | if (!cpu_physical_memory_is_dirty(addr1)) {
|
4240 | 74576198 | aliguori | /* invalidate code */
|
4241 | 74576198 | aliguori | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
4242 | 74576198 | aliguori | /* set dirty bit */
|
4243 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags( |
4244 | f7c11b53 | Yoshiaki Tamura | addr1, (0xff & ~CODE_DIRTY_FLAG));
|
4245 | 74576198 | aliguori | } |
4246 | 74576198 | aliguori | } |
4247 | 8df1cd07 | bellard | } |
4248 | 8df1cd07 | bellard | } |
4249 | 8df1cd07 | bellard | |
4250 | c227f099 | Anthony Liguori | void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val)
|
4251 | bc98a7ef | j_mayer | { |
4252 | bc98a7ef | j_mayer | int io_index;
|
4253 | bc98a7ef | j_mayer | uint8_t *ptr; |
4254 | bc98a7ef | j_mayer | unsigned long pd; |
4255 | bc98a7ef | j_mayer | PhysPageDesc *p; |
4256 | bc98a7ef | j_mayer | |
4257 | bc98a7ef | j_mayer | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
4258 | bc98a7ef | j_mayer | if (!p) {
|
4259 | bc98a7ef | j_mayer | pd = IO_MEM_UNASSIGNED; |
4260 | bc98a7ef | j_mayer | } else {
|
4261 | bc98a7ef | j_mayer | pd = p->phys_offset; |
4262 | bc98a7ef | j_mayer | } |
4263 | 3b46e624 | ths | |
4264 | bc98a7ef | j_mayer | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
4265 | bc98a7ef | j_mayer | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
4266 | 8da3ff18 | pbrook | if (p)
|
4267 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
4268 | bc98a7ef | j_mayer | #ifdef TARGET_WORDS_BIGENDIAN
|
4269 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val >> 32); |
4270 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val); |
4271 | bc98a7ef | j_mayer | #else
|
4272 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
|
4273 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val >> 32); |
4274 | bc98a7ef | j_mayer | #endif
|
4275 | bc98a7ef | j_mayer | } else {
|
4276 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
4277 | bc98a7ef | j_mayer | (addr & ~TARGET_PAGE_MASK); |
4278 | bc98a7ef | j_mayer | stq_p(ptr, val); |
4279 | bc98a7ef | j_mayer | } |
4280 | bc98a7ef | j_mayer | } |
4281 | bc98a7ef | j_mayer | |
4282 | 8df1cd07 | bellard | /* warning: addr must be aligned */
|
4283 | c227f099 | Anthony Liguori | void stl_phys(target_phys_addr_t addr, uint32_t val)
|
4284 | 8df1cd07 | bellard | { |
4285 | 8df1cd07 | bellard | int io_index;
|
4286 | 8df1cd07 | bellard | uint8_t *ptr; |
4287 | 8df1cd07 | bellard | unsigned long pd; |
4288 | 8df1cd07 | bellard | PhysPageDesc *p; |
4289 | 8df1cd07 | bellard | |
4290 | 8df1cd07 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
4291 | 8df1cd07 | bellard | if (!p) {
|
4292 | 8df1cd07 | bellard | pd = IO_MEM_UNASSIGNED; |
4293 | 8df1cd07 | bellard | } else {
|
4294 | 8df1cd07 | bellard | pd = p->phys_offset; |
4295 | 8df1cd07 | bellard | } |
4296 | 3b46e624 | ths | |
4297 | 3a7d929e | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
4298 | 8df1cd07 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
4299 | 8da3ff18 | pbrook | if (p)
|
4300 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
4301 | 8df1cd07 | bellard | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
|
4302 | 8df1cd07 | bellard | } else {
|
4303 | 8df1cd07 | bellard | unsigned long addr1; |
4304 | 8df1cd07 | bellard | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
4305 | 8df1cd07 | bellard | /* RAM case */
|
4306 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
4307 | 8df1cd07 | bellard | stl_p(ptr, val); |
4308 | 3a7d929e | bellard | if (!cpu_physical_memory_is_dirty(addr1)) {
|
4309 | 3a7d929e | bellard | /* invalidate code */
|
4310 | 3a7d929e | bellard | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
4311 | 3a7d929e | bellard | /* set dirty bit */
|
4312 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags(addr1, |
4313 | f7c11b53 | Yoshiaki Tamura | (0xff & ~CODE_DIRTY_FLAG));
|
4314 | 3a7d929e | bellard | } |
4315 | 8df1cd07 | bellard | } |
4316 | 8df1cd07 | bellard | } |
4317 | 8df1cd07 | bellard | |
4318 | aab33094 | bellard | /* XXX: optimize */
|
4319 | c227f099 | Anthony Liguori | void stb_phys(target_phys_addr_t addr, uint32_t val)
|
4320 | aab33094 | bellard | { |
4321 | aab33094 | bellard | uint8_t v = val; |
4322 | aab33094 | bellard | cpu_physical_memory_write(addr, &v, 1);
|
4323 | aab33094 | bellard | } |
4324 | aab33094 | bellard | |
4325 | 733f0b02 | Michael S. Tsirkin | /* warning: addr must be aligned */
|
4326 | c227f099 | Anthony Liguori | void stw_phys(target_phys_addr_t addr, uint32_t val)
|
4327 | aab33094 | bellard | { |
4328 | 733f0b02 | Michael S. Tsirkin | int io_index;
|
4329 | 733f0b02 | Michael S. Tsirkin | uint8_t *ptr; |
4330 | 733f0b02 | Michael S. Tsirkin | unsigned long pd; |
4331 | 733f0b02 | Michael S. Tsirkin | PhysPageDesc *p; |
4332 | 733f0b02 | Michael S. Tsirkin | |
4333 | 733f0b02 | Michael S. Tsirkin | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
4334 | 733f0b02 | Michael S. Tsirkin | if (!p) {
|
4335 | 733f0b02 | Michael S. Tsirkin | pd = IO_MEM_UNASSIGNED; |
4336 | 733f0b02 | Michael S. Tsirkin | } else {
|
4337 | 733f0b02 | Michael S. Tsirkin | pd = p->phys_offset; |
4338 | 733f0b02 | Michael S. Tsirkin | } |
4339 | 733f0b02 | Michael S. Tsirkin | |
4340 | 733f0b02 | Michael S. Tsirkin | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
4341 | 733f0b02 | Michael S. Tsirkin | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
4342 | 733f0b02 | Michael S. Tsirkin | if (p)
|
4343 | 733f0b02 | Michael S. Tsirkin | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
4344 | 733f0b02 | Michael S. Tsirkin | io_mem_write[io_index][1](io_mem_opaque[io_index], addr, val);
|
4345 | 733f0b02 | Michael S. Tsirkin | } else {
|
4346 | 733f0b02 | Michael S. Tsirkin | unsigned long addr1; |
4347 | 733f0b02 | Michael S. Tsirkin | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
4348 | 733f0b02 | Michael S. Tsirkin | /* RAM case */
|
4349 | 733f0b02 | Michael S. Tsirkin | ptr = qemu_get_ram_ptr(addr1); |
4350 | 733f0b02 | Michael S. Tsirkin | stw_p(ptr, val); |
4351 | 733f0b02 | Michael S. Tsirkin | if (!cpu_physical_memory_is_dirty(addr1)) {
|
4352 | 733f0b02 | Michael S. Tsirkin | /* invalidate code */
|
4353 | 733f0b02 | Michael S. Tsirkin | tb_invalidate_phys_page_range(addr1, addr1 + 2, 0); |
4354 | 733f0b02 | Michael S. Tsirkin | /* set dirty bit */
|
4355 | 733f0b02 | Michael S. Tsirkin | cpu_physical_memory_set_dirty_flags(addr1, |
4356 | 733f0b02 | Michael S. Tsirkin | (0xff & ~CODE_DIRTY_FLAG));
|
4357 | 733f0b02 | Michael S. Tsirkin | } |
4358 | 733f0b02 | Michael S. Tsirkin | } |
4359 | aab33094 | bellard | } |
4360 | aab33094 | bellard | |
4361 | aab33094 | bellard | /* XXX: optimize */
|
4362 | c227f099 | Anthony Liguori | void stq_phys(target_phys_addr_t addr, uint64_t val)
|
4363 | aab33094 | bellard | { |
4364 | aab33094 | bellard | val = tswap64(val); |
4365 | 71d2b725 | Stefan Weil | cpu_physical_memory_write(addr, &val, 8);
|
4366 | aab33094 | bellard | } |
4367 | aab33094 | bellard | |
4368 | 5e2972fd | aliguori | /* virtual memory access for debug (includes writing to ROM) */
|
4369 | 5fafdf24 | ths | int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
|
4370 | b448f2f3 | bellard | uint8_t *buf, int len, int is_write) |
4371 | 13eb76e0 | bellard | { |
4372 | 13eb76e0 | bellard | int l;
|
4373 | c227f099 | Anthony Liguori | target_phys_addr_t phys_addr; |
4374 | 9b3c35e0 | j_mayer | target_ulong page; |
4375 | 13eb76e0 | bellard | |
4376 | 13eb76e0 | bellard | while (len > 0) { |
4377 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
4378 | 13eb76e0 | bellard | phys_addr = cpu_get_phys_page_debug(env, page); |
4379 | 13eb76e0 | bellard | /* if no physical page mapped, return an error */
|
4380 | 13eb76e0 | bellard | if (phys_addr == -1) |
4381 | 13eb76e0 | bellard | return -1; |
4382 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
4383 | 13eb76e0 | bellard | if (l > len)
|
4384 | 13eb76e0 | bellard | l = len; |
4385 | 5e2972fd | aliguori | phys_addr += (addr & ~TARGET_PAGE_MASK); |
4386 | 5e2972fd | aliguori | if (is_write)
|
4387 | 5e2972fd | aliguori | cpu_physical_memory_write_rom(phys_addr, buf, l); |
4388 | 5e2972fd | aliguori | else
|
4389 | 5e2972fd | aliguori | cpu_physical_memory_rw(phys_addr, buf, l, is_write); |
4390 | 13eb76e0 | bellard | len -= l; |
4391 | 13eb76e0 | bellard | buf += l; |
4392 | 13eb76e0 | bellard | addr += l; |
4393 | 13eb76e0 | bellard | } |
4394 | 13eb76e0 | bellard | return 0; |
4395 | 13eb76e0 | bellard | } |
4396 | a68fe89c | Paul Brook | #endif
|
4397 | 13eb76e0 | bellard | |
4398 | 2e70f6ef | pbrook | /* in deterministic execution mode, instructions doing device I/Os
|
4399 | 2e70f6ef | pbrook | must be at the end of the TB */
|
4400 | 2e70f6ef | pbrook | void cpu_io_recompile(CPUState *env, void *retaddr) |
4401 | 2e70f6ef | pbrook | { |
4402 | 2e70f6ef | pbrook | TranslationBlock *tb; |
4403 | 2e70f6ef | pbrook | uint32_t n, cflags; |
4404 | 2e70f6ef | pbrook | target_ulong pc, cs_base; |
4405 | 2e70f6ef | pbrook | uint64_t flags; |
4406 | 2e70f6ef | pbrook | |
4407 | 2e70f6ef | pbrook | tb = tb_find_pc((unsigned long)retaddr); |
4408 | 2e70f6ef | pbrook | if (!tb) {
|
4409 | 2e70f6ef | pbrook | cpu_abort(env, "cpu_io_recompile: could not find TB for pc=%p",
|
4410 | 2e70f6ef | pbrook | retaddr); |
4411 | 2e70f6ef | pbrook | } |
4412 | 2e70f6ef | pbrook | n = env->icount_decr.u16.low + tb->icount; |
4413 | 618ba8e6 | Stefan Weil | cpu_restore_state(tb, env, (unsigned long)retaddr); |
4414 | 2e70f6ef | pbrook | /* Calculate how many instructions had been executed before the fault
|
4415 | bf20dc07 | ths | occurred. */
|
4416 | 2e70f6ef | pbrook | n = n - env->icount_decr.u16.low; |
4417 | 2e70f6ef | pbrook | /* Generate a new TB ending on the I/O insn. */
|
4418 | 2e70f6ef | pbrook | n++; |
4419 | 2e70f6ef | pbrook | /* On MIPS and SH, delay slot instructions can only be restarted if
|
4420 | 2e70f6ef | pbrook | they were already the first instruction in the TB. If this is not
|
4421 | bf20dc07 | ths | the first instruction in a TB then re-execute the preceding
|
4422 | 2e70f6ef | pbrook | branch. */
|
4423 | 2e70f6ef | pbrook | #if defined(TARGET_MIPS)
|
4424 | 2e70f6ef | pbrook | if ((env->hflags & MIPS_HFLAG_BMASK) != 0 && n > 1) { |
4425 | 2e70f6ef | pbrook | env->active_tc.PC -= 4;
|
4426 | 2e70f6ef | pbrook | env->icount_decr.u16.low++; |
4427 | 2e70f6ef | pbrook | env->hflags &= ~MIPS_HFLAG_BMASK; |
4428 | 2e70f6ef | pbrook | } |
4429 | 2e70f6ef | pbrook | #elif defined(TARGET_SH4)
|
4430 | 2e70f6ef | pbrook | if ((env->flags & ((DELAY_SLOT | DELAY_SLOT_CONDITIONAL))) != 0 |
4431 | 2e70f6ef | pbrook | && n > 1) {
|
4432 | 2e70f6ef | pbrook | env->pc -= 2;
|
4433 | 2e70f6ef | pbrook | env->icount_decr.u16.low++; |
4434 | 2e70f6ef | pbrook | env->flags &= ~(DELAY_SLOT | DELAY_SLOT_CONDITIONAL); |
4435 | 2e70f6ef | pbrook | } |
4436 | 2e70f6ef | pbrook | #endif
|
4437 | 2e70f6ef | pbrook | /* This should never happen. */
|
4438 | 2e70f6ef | pbrook | if (n > CF_COUNT_MASK)
|
4439 | 2e70f6ef | pbrook | cpu_abort(env, "TB too big during recompile");
|
4440 | 2e70f6ef | pbrook | |
4441 | 2e70f6ef | pbrook | cflags = n | CF_LAST_IO; |
4442 | 2e70f6ef | pbrook | pc = tb->pc; |
4443 | 2e70f6ef | pbrook | cs_base = tb->cs_base; |
4444 | 2e70f6ef | pbrook | flags = tb->flags; |
4445 | 2e70f6ef | pbrook | tb_phys_invalidate(tb, -1);
|
4446 | 2e70f6ef | pbrook | /* FIXME: In theory this could raise an exception. In practice
|
4447 | 2e70f6ef | pbrook | we have already translated the block once so it's probably ok. */
|
4448 | 2e70f6ef | pbrook | tb_gen_code(env, pc, cs_base, flags, cflags); |
4449 | bf20dc07 | ths | /* TODO: If env->pc != tb->pc (i.e. the faulting instruction was not
|
4450 | 2e70f6ef | pbrook | the first in the TB) then we end up generating a whole new TB and
|
4451 | 2e70f6ef | pbrook | repeating the fault, which is horribly inefficient.
|
4452 | 2e70f6ef | pbrook | Better would be to execute just this insn uncached, or generate a
|
4453 | 2e70f6ef | pbrook | second new TB. */
|
4454 | 2e70f6ef | pbrook | cpu_resume_from_signal(env, NULL);
|
4455 | 2e70f6ef | pbrook | } |
4456 | 2e70f6ef | pbrook | |
4457 | b3755a91 | Paul Brook | #if !defined(CONFIG_USER_ONLY)
|
4458 | b3755a91 | Paul Brook | |
4459 | 055403b2 | Stefan Weil | void dump_exec_info(FILE *f, fprintf_function cpu_fprintf)
|
4460 | e3db7226 | bellard | { |
4461 | e3db7226 | bellard | int i, target_code_size, max_target_code_size;
|
4462 | e3db7226 | bellard | int direct_jmp_count, direct_jmp2_count, cross_page;
|
4463 | e3db7226 | bellard | TranslationBlock *tb; |
4464 | 3b46e624 | ths | |
4465 | e3db7226 | bellard | target_code_size = 0;
|
4466 | e3db7226 | bellard | max_target_code_size = 0;
|
4467 | e3db7226 | bellard | cross_page = 0;
|
4468 | e3db7226 | bellard | direct_jmp_count = 0;
|
4469 | e3db7226 | bellard | direct_jmp2_count = 0;
|
4470 | e3db7226 | bellard | for(i = 0; i < nb_tbs; i++) { |
4471 | e3db7226 | bellard | tb = &tbs[i]; |
4472 | e3db7226 | bellard | target_code_size += tb->size; |
4473 | e3db7226 | bellard | if (tb->size > max_target_code_size)
|
4474 | e3db7226 | bellard | max_target_code_size = tb->size; |
4475 | e3db7226 | bellard | if (tb->page_addr[1] != -1) |
4476 | e3db7226 | bellard | cross_page++; |
4477 | e3db7226 | bellard | if (tb->tb_next_offset[0] != 0xffff) { |
4478 | e3db7226 | bellard | direct_jmp_count++; |
4479 | e3db7226 | bellard | if (tb->tb_next_offset[1] != 0xffff) { |
4480 | e3db7226 | bellard | direct_jmp2_count++; |
4481 | e3db7226 | bellard | } |
4482 | e3db7226 | bellard | } |
4483 | e3db7226 | bellard | } |
4484 | e3db7226 | bellard | /* XXX: avoid using doubles ? */
|
4485 | 57fec1fe | bellard | cpu_fprintf(f, "Translation buffer state:\n");
|
4486 | 055403b2 | Stefan Weil | cpu_fprintf(f, "gen code size %td/%ld\n",
|
4487 | 26a5f13b | bellard | code_gen_ptr - code_gen_buffer, code_gen_buffer_max_size); |
4488 | 26a5f13b | bellard | cpu_fprintf(f, "TB count %d/%d\n",
|
4489 | 26a5f13b | bellard | nb_tbs, code_gen_max_blocks); |
4490 | 5fafdf24 | ths | cpu_fprintf(f, "TB avg target size %d max=%d bytes\n",
|
4491 | e3db7226 | bellard | nb_tbs ? target_code_size / nb_tbs : 0,
|
4492 | e3db7226 | bellard | max_target_code_size); |
4493 | 055403b2 | Stefan Weil | cpu_fprintf(f, "TB avg host size %td bytes (expansion ratio: %0.1f)\n",
|
4494 | e3db7226 | bellard | nb_tbs ? (code_gen_ptr - code_gen_buffer) / nb_tbs : 0,
|
4495 | e3db7226 | bellard | target_code_size ? (double) (code_gen_ptr - code_gen_buffer) / target_code_size : 0); |
4496 | 5fafdf24 | ths | cpu_fprintf(f, "cross page TB count %d (%d%%)\n",
|
4497 | 5fafdf24 | ths | cross_page, |
4498 | e3db7226 | bellard | nb_tbs ? (cross_page * 100) / nb_tbs : 0); |
4499 | e3db7226 | bellard | cpu_fprintf(f, "direct jump count %d (%d%%) (2 jumps=%d %d%%)\n",
|
4500 | 5fafdf24 | ths | direct_jmp_count, |
4501 | e3db7226 | bellard | nb_tbs ? (direct_jmp_count * 100) / nb_tbs : 0, |
4502 | e3db7226 | bellard | direct_jmp2_count, |
4503 | e3db7226 | bellard | nb_tbs ? (direct_jmp2_count * 100) / nb_tbs : 0); |
4504 | 57fec1fe | bellard | cpu_fprintf(f, "\nStatistics:\n");
|
4505 | e3db7226 | bellard | cpu_fprintf(f, "TB flush count %d\n", tb_flush_count);
|
4506 | e3db7226 | bellard | cpu_fprintf(f, "TB invalidate count %d\n", tb_phys_invalidate_count);
|
4507 | e3db7226 | bellard | cpu_fprintf(f, "TLB flush count %d\n", tlb_flush_count);
|
4508 | b67d9a52 | bellard | tcg_dump_info(f, cpu_fprintf); |
4509 | e3db7226 | bellard | } |
4510 | e3db7226 | bellard | |
4511 | 61382a50 | bellard | #define MMUSUFFIX _cmmu
|
4512 | 61382a50 | bellard | #define GETPC() NULL |
4513 | 61382a50 | bellard | #define env cpu_single_env
|
4514 | b769d8fe | bellard | #define SOFTMMU_CODE_ACCESS
|
4515 | 61382a50 | bellard | |
4516 | 61382a50 | bellard | #define SHIFT 0 |
4517 | 61382a50 | bellard | #include "softmmu_template.h" |
4518 | 61382a50 | bellard | |
4519 | 61382a50 | bellard | #define SHIFT 1 |
4520 | 61382a50 | bellard | #include "softmmu_template.h" |
4521 | 61382a50 | bellard | |
4522 | 61382a50 | bellard | #define SHIFT 2 |
4523 | 61382a50 | bellard | #include "softmmu_template.h" |
4524 | 61382a50 | bellard | |
4525 | 61382a50 | bellard | #define SHIFT 3 |
4526 | 61382a50 | bellard | #include "softmmu_template.h" |
4527 | 61382a50 | bellard | |
4528 | 61382a50 | bellard | #undef env
|
4529 | 61382a50 | bellard | |
4530 | 61382a50 | bellard | #endif |