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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 | #include <stdlib.h> |
27 | 54936004 | bellard | #include <stdio.h> |
28 | 54936004 | bellard | #include <stdarg.h> |
29 | 54936004 | bellard | #include <string.h> |
30 | 54936004 | bellard | #include <errno.h> |
31 | 54936004 | bellard | #include <unistd.h> |
32 | 54936004 | bellard | #include <inttypes.h> |
33 | 54936004 | bellard | |
34 | 6180a181 | bellard | #include "cpu.h" |
35 | 6180a181 | bellard | #include "exec-all.h" |
36 | ca10f867 | aurel32 | #include "qemu-common.h" |
37 | b67d9a52 | bellard | #include "tcg.h" |
38 | b3c7724c | pbrook | #include "hw/hw.h" |
39 | 74576198 | aliguori | #include "osdep.h" |
40 | 7ba1e619 | aliguori | #include "kvm.h" |
41 | 53a5960a | pbrook | #if defined(CONFIG_USER_ONLY)
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42 | 53a5960a | pbrook | #include <qemu.h> |
43 | 53a5960a | pbrook | #endif
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44 | 54936004 | bellard | |
45 | fd6ce8f6 | bellard | //#define DEBUG_TB_INVALIDATE
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46 | 66e85a21 | bellard | //#define DEBUG_FLUSH
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47 | 9fa3e853 | bellard | //#define DEBUG_TLB
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48 | 67d3b957 | pbrook | //#define DEBUG_UNASSIGNED
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49 | fd6ce8f6 | bellard | |
50 | fd6ce8f6 | bellard | /* make various TB consistency checks */
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51 | 5fafdf24 | ths | //#define DEBUG_TB_CHECK
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52 | 5fafdf24 | ths | //#define DEBUG_TLB_CHECK
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53 | fd6ce8f6 | bellard | |
54 | 1196be37 | ths | //#define DEBUG_IOPORT
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55 | db7b5426 | blueswir1 | //#define DEBUG_SUBPAGE
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56 | 1196be37 | ths | |
57 | 99773bd4 | pbrook | #if !defined(CONFIG_USER_ONLY)
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58 | 99773bd4 | pbrook | /* TB consistency checks only implemented for usermode emulation. */
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59 | 99773bd4 | pbrook | #undef DEBUG_TB_CHECK
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60 | 99773bd4 | pbrook | #endif
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61 | 99773bd4 | pbrook | |
62 | 9fa3e853 | bellard | #define SMC_BITMAP_USE_THRESHOLD 10 |
63 | 9fa3e853 | bellard | |
64 | 108c49b8 | bellard | #if defined(TARGET_SPARC64)
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65 | 108c49b8 | bellard | #define TARGET_PHYS_ADDR_SPACE_BITS 41 |
66 | 5dcb6b91 | blueswir1 | #elif defined(TARGET_SPARC)
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67 | 5dcb6b91 | blueswir1 | #define TARGET_PHYS_ADDR_SPACE_BITS 36 |
68 | bedb69ea | j_mayer | #elif defined(TARGET_ALPHA)
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69 | bedb69ea | j_mayer | #define TARGET_PHYS_ADDR_SPACE_BITS 42 |
70 | bedb69ea | j_mayer | #define TARGET_VIRT_ADDR_SPACE_BITS 42 |
71 | 108c49b8 | bellard | #elif defined(TARGET_PPC64)
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72 | 108c49b8 | bellard | #define TARGET_PHYS_ADDR_SPACE_BITS 42 |
73 | 4a1418e0 | Anthony Liguori | #elif defined(TARGET_X86_64)
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74 | 00f82b8a | aurel32 | #define TARGET_PHYS_ADDR_SPACE_BITS 42 |
75 | 4a1418e0 | Anthony Liguori | #elif defined(TARGET_I386)
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76 | 00f82b8a | aurel32 | #define TARGET_PHYS_ADDR_SPACE_BITS 36 |
77 | 108c49b8 | bellard | #else
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78 | 108c49b8 | bellard | #define TARGET_PHYS_ADDR_SPACE_BITS 32 |
79 | 108c49b8 | bellard | #endif
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80 | 108c49b8 | bellard | |
81 | bdaf78e0 | blueswir1 | static TranslationBlock *tbs;
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82 | 26a5f13b | bellard | int code_gen_max_blocks;
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83 | 9fa3e853 | bellard | TranslationBlock *tb_phys_hash[CODE_GEN_PHYS_HASH_SIZE]; |
84 | bdaf78e0 | blueswir1 | static int nb_tbs; |
85 | eb51d102 | bellard | /* any access to the tbs or the page table must use this lock */
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86 | c227f099 | Anthony Liguori | spinlock_t tb_lock = SPIN_LOCK_UNLOCKED; |
87 | fd6ce8f6 | bellard | |
88 | 141ac468 | blueswir1 | #if defined(__arm__) || defined(__sparc_v9__)
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89 | 141ac468 | blueswir1 | /* The prologue must be reachable with a direct jump. ARM and Sparc64
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90 | 141ac468 | blueswir1 | have limited branch ranges (possibly also PPC) so place it in a
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91 | d03d860b | blueswir1 | section close to code segment. */
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92 | d03d860b | blueswir1 | #define code_gen_section \
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93 | d03d860b | blueswir1 | __attribute__((__section__(".gen_code"))) \
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94 | d03d860b | blueswir1 | __attribute__((aligned (32)))
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95 | f8e2af11 | Stefan Weil | #elif defined(_WIN32)
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96 | f8e2af11 | Stefan Weil | /* Maximum alignment for Win32 is 16. */
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97 | f8e2af11 | Stefan Weil | #define code_gen_section \
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98 | f8e2af11 | Stefan Weil | __attribute__((aligned (16)))
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99 | d03d860b | blueswir1 | #else
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100 | d03d860b | blueswir1 | #define code_gen_section \
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101 | d03d860b | blueswir1 | __attribute__((aligned (32)))
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102 | d03d860b | blueswir1 | #endif
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103 | d03d860b | blueswir1 | |
104 | d03d860b | blueswir1 | uint8_t code_gen_prologue[1024] code_gen_section;
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105 | bdaf78e0 | blueswir1 | static uint8_t *code_gen_buffer;
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106 | bdaf78e0 | blueswir1 | static unsigned long code_gen_buffer_size; |
107 | 26a5f13b | bellard | /* threshold to flush the translated code buffer */
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108 | bdaf78e0 | blueswir1 | static unsigned long code_gen_buffer_max_size; |
109 | fd6ce8f6 | bellard | uint8_t *code_gen_ptr; |
110 | fd6ce8f6 | bellard | |
111 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
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112 | 9fa3e853 | bellard | int phys_ram_fd;
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113 | 1ccde1cb | bellard | uint8_t *phys_ram_dirty; |
114 | 74576198 | aliguori | static int in_migration; |
115 | 94a6b54f | pbrook | |
116 | 94a6b54f | pbrook | typedef struct RAMBlock { |
117 | 94a6b54f | pbrook | uint8_t *host; |
118 | c227f099 | Anthony Liguori | ram_addr_t offset; |
119 | c227f099 | Anthony Liguori | ram_addr_t length; |
120 | 94a6b54f | pbrook | struct RAMBlock *next;
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121 | 94a6b54f | pbrook | } RAMBlock; |
122 | 94a6b54f | pbrook | |
123 | 94a6b54f | pbrook | static RAMBlock *ram_blocks;
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124 | 94a6b54f | pbrook | /* TODO: When we implement (and use) ram deallocation (e.g. for hotplug)
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125 | ccbb4d44 | Stuart Brady | then we can no longer assume contiguous ram offsets, and external uses
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126 | 94a6b54f | pbrook | of this variable will break. */
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127 | c227f099 | Anthony Liguori | ram_addr_t last_ram_offset; |
128 | e2eef170 | pbrook | #endif
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129 | 9fa3e853 | bellard | |
130 | 6a00d601 | bellard | CPUState *first_cpu; |
131 | 6a00d601 | bellard | /* current CPU in the current thread. It is only valid inside
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132 | 6a00d601 | bellard | cpu_exec() */
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133 | 5fafdf24 | ths | CPUState *cpu_single_env; |
134 | 2e70f6ef | pbrook | /* 0 = Do not count executed instructions.
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135 | bf20dc07 | ths | 1 = Precise instruction counting.
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136 | 2e70f6ef | pbrook | 2 = Adaptive rate instruction counting. */
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137 | 2e70f6ef | pbrook | int use_icount = 0; |
138 | 2e70f6ef | pbrook | /* Current instruction counter. While executing translated code this may
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139 | 2e70f6ef | pbrook | include some instructions that have not yet been executed. */
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140 | 2e70f6ef | pbrook | int64_t qemu_icount; |
141 | 6a00d601 | bellard | |
142 | 54936004 | bellard | typedef struct PageDesc { |
143 | 92e873b9 | bellard | /* list of TBs intersecting this ram page */
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144 | fd6ce8f6 | bellard | TranslationBlock *first_tb; |
145 | 9fa3e853 | bellard | /* in order to optimize self modifying code, we count the number
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146 | 9fa3e853 | bellard | of lookups we do to a given page to use a bitmap */
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147 | 9fa3e853 | bellard | unsigned int code_write_count; |
148 | 9fa3e853 | bellard | uint8_t *code_bitmap; |
149 | 9fa3e853 | bellard | #if defined(CONFIG_USER_ONLY)
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150 | 9fa3e853 | bellard | unsigned long flags; |
151 | 9fa3e853 | bellard | #endif
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152 | 54936004 | bellard | } PageDesc; |
153 | 54936004 | bellard | |
154 | 92e873b9 | bellard | typedef struct PhysPageDesc { |
155 | 0f459d16 | pbrook | /* offset in host memory of the page + io_index in the low bits */
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156 | c227f099 | Anthony Liguori | ram_addr_t phys_offset; |
157 | c227f099 | Anthony Liguori | ram_addr_t region_offset; |
158 | 92e873b9 | bellard | } PhysPageDesc; |
159 | 92e873b9 | bellard | |
160 | 54936004 | bellard | #define L2_BITS 10 |
161 | bedb69ea | j_mayer | #if defined(CONFIG_USER_ONLY) && defined(TARGET_VIRT_ADDR_SPACE_BITS)
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162 | bedb69ea | j_mayer | /* XXX: this is a temporary hack for alpha target.
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163 | bedb69ea | j_mayer | * In the future, this is to be replaced by a multi-level table
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164 | bedb69ea | j_mayer | * to actually be able to handle the complete 64 bits address space.
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165 | bedb69ea | j_mayer | */
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166 | bedb69ea | j_mayer | #define L1_BITS (TARGET_VIRT_ADDR_SPACE_BITS - L2_BITS - TARGET_PAGE_BITS)
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167 | bedb69ea | j_mayer | #else
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168 | 03875444 | aurel32 | #define L1_BITS (32 - L2_BITS - TARGET_PAGE_BITS) |
169 | bedb69ea | j_mayer | #endif
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170 | 54936004 | bellard | |
171 | 54936004 | bellard | #define L1_SIZE (1 << L1_BITS) |
172 | 54936004 | bellard | #define L2_SIZE (1 << L2_BITS) |
173 | 54936004 | bellard | |
174 | 83fb7adf | bellard | unsigned long qemu_real_host_page_size; |
175 | 83fb7adf | bellard | unsigned long qemu_host_page_bits; |
176 | 83fb7adf | bellard | unsigned long qemu_host_page_size; |
177 | 83fb7adf | bellard | unsigned long qemu_host_page_mask; |
178 | 54936004 | bellard | |
179 | 92e873b9 | bellard | /* XXX: for system emulation, it could just be an array */
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180 | 54936004 | bellard | static PageDesc *l1_map[L1_SIZE];
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181 | bdaf78e0 | blueswir1 | static PhysPageDesc **l1_phys_map;
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182 | 54936004 | bellard | |
183 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
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184 | e2eef170 | pbrook | static void io_mem_init(void); |
185 | e2eef170 | pbrook | |
186 | 33417e70 | bellard | /* io memory support */
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187 | 33417e70 | bellard | CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4];
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188 | 33417e70 | bellard | CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4];
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189 | a4193c8a | bellard | void *io_mem_opaque[IO_MEM_NB_ENTRIES];
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190 | 511d2b14 | blueswir1 | static char io_mem_used[IO_MEM_NB_ENTRIES]; |
191 | 6658ffb8 | pbrook | static int io_mem_watch; |
192 | 6658ffb8 | pbrook | #endif
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193 | 33417e70 | bellard | |
194 | 34865134 | bellard | /* log support */
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195 | d9b630fd | blueswir1 | static const char *logfilename = "/tmp/qemu.log"; |
196 | 34865134 | bellard | FILE *logfile; |
197 | 34865134 | bellard | int loglevel;
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198 | e735b91c | pbrook | static int log_append = 0; |
199 | 34865134 | bellard | |
200 | e3db7226 | bellard | /* statistics */
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201 | e3db7226 | bellard | static int tlb_flush_count; |
202 | e3db7226 | bellard | static int tb_flush_count; |
203 | e3db7226 | bellard | static int tb_phys_invalidate_count; |
204 | e3db7226 | bellard | |
205 | db7b5426 | blueswir1 | #define SUBPAGE_IDX(addr) ((addr) & ~TARGET_PAGE_MASK)
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206 | c227f099 | Anthony Liguori | typedef struct subpage_t { |
207 | c227f099 | Anthony Liguori | target_phys_addr_t base; |
208 | d60efc6b | Blue Swirl | CPUReadMemoryFunc * const *mem_read[TARGET_PAGE_SIZE][4]; |
209 | d60efc6b | Blue Swirl | CPUWriteMemoryFunc * const *mem_write[TARGET_PAGE_SIZE][4]; |
210 | 3ee89922 | blueswir1 | void *opaque[TARGET_PAGE_SIZE][2][4]; |
211 | c227f099 | Anthony Liguori | ram_addr_t region_offset[TARGET_PAGE_SIZE][2][4]; |
212 | c227f099 | Anthony Liguori | } subpage_t; |
213 | db7b5426 | blueswir1 | |
214 | 7cb69cae | bellard | #ifdef _WIN32
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215 | 7cb69cae | bellard | static void map_exec(void *addr, long size) |
216 | 7cb69cae | bellard | { |
217 | 7cb69cae | bellard | DWORD old_protect; |
218 | 7cb69cae | bellard | VirtualProtect(addr, size, |
219 | 7cb69cae | bellard | PAGE_EXECUTE_READWRITE, &old_protect); |
220 | 7cb69cae | bellard | |
221 | 7cb69cae | bellard | } |
222 | 7cb69cae | bellard | #else
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223 | 7cb69cae | bellard | static void map_exec(void *addr, long size) |
224 | 7cb69cae | bellard | { |
225 | 4369415f | bellard | unsigned long start, end, page_size; |
226 | 7cb69cae | bellard | |
227 | 4369415f | bellard | page_size = getpagesize(); |
228 | 7cb69cae | bellard | start = (unsigned long)addr; |
229 | 4369415f | bellard | start &= ~(page_size - 1);
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230 | 7cb69cae | bellard | |
231 | 7cb69cae | bellard | end = (unsigned long)addr + size; |
232 | 4369415f | bellard | end += page_size - 1;
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233 | 4369415f | bellard | end &= ~(page_size - 1);
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234 | 7cb69cae | bellard | |
235 | 7cb69cae | bellard | mprotect((void *)start, end - start,
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236 | 7cb69cae | bellard | PROT_READ | PROT_WRITE | PROT_EXEC); |
237 | 7cb69cae | bellard | } |
238 | 7cb69cae | bellard | #endif
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239 | 7cb69cae | bellard | |
240 | b346ff46 | bellard | static void page_init(void) |
241 | 54936004 | bellard | { |
242 | 83fb7adf | bellard | /* NOTE: we can always suppose that qemu_host_page_size >=
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243 | 54936004 | bellard | TARGET_PAGE_SIZE */
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244 | c2b48b69 | aliguori | #ifdef _WIN32
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245 | c2b48b69 | aliguori | { |
246 | c2b48b69 | aliguori | SYSTEM_INFO system_info; |
247 | c2b48b69 | aliguori | |
248 | c2b48b69 | aliguori | GetSystemInfo(&system_info); |
249 | c2b48b69 | aliguori | qemu_real_host_page_size = system_info.dwPageSize; |
250 | c2b48b69 | aliguori | } |
251 | c2b48b69 | aliguori | #else
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252 | c2b48b69 | aliguori | qemu_real_host_page_size = getpagesize(); |
253 | c2b48b69 | aliguori | #endif
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254 | 83fb7adf | bellard | if (qemu_host_page_size == 0) |
255 | 83fb7adf | bellard | qemu_host_page_size = qemu_real_host_page_size; |
256 | 83fb7adf | bellard | if (qemu_host_page_size < TARGET_PAGE_SIZE)
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257 | 83fb7adf | bellard | qemu_host_page_size = TARGET_PAGE_SIZE; |
258 | 83fb7adf | bellard | qemu_host_page_bits = 0;
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259 | 83fb7adf | bellard | while ((1 << qemu_host_page_bits) < qemu_host_page_size) |
260 | 83fb7adf | bellard | qemu_host_page_bits++; |
261 | 83fb7adf | bellard | qemu_host_page_mask = ~(qemu_host_page_size - 1);
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262 | 108c49b8 | bellard | l1_phys_map = qemu_vmalloc(L1_SIZE * sizeof(void *)); |
263 | 108c49b8 | bellard | memset(l1_phys_map, 0, L1_SIZE * sizeof(void *)); |
264 | 50a9569b | balrog | |
265 | 50a9569b | balrog | #if !defined(_WIN32) && defined(CONFIG_USER_ONLY)
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266 | 50a9569b | balrog | { |
267 | 50a9569b | balrog | long long startaddr, endaddr; |
268 | 50a9569b | balrog | FILE *f; |
269 | 50a9569b | balrog | int n;
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270 | 50a9569b | balrog | |
271 | c8a706fe | pbrook | mmap_lock(); |
272 | 0776590d | pbrook | last_brk = (unsigned long)sbrk(0); |
273 | 50a9569b | balrog | f = fopen("/proc/self/maps", "r"); |
274 | 50a9569b | balrog | if (f) {
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275 | 50a9569b | balrog | do {
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276 | 50a9569b | balrog | n = fscanf (f, "%llx-%llx %*[^\n]\n", &startaddr, &endaddr);
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277 | 50a9569b | balrog | if (n == 2) { |
278 | e0b8d65a | blueswir1 | startaddr = MIN(startaddr, |
279 | e0b8d65a | blueswir1 | (1ULL << TARGET_PHYS_ADDR_SPACE_BITS) - 1); |
280 | e0b8d65a | blueswir1 | endaddr = MIN(endaddr, |
281 | e0b8d65a | blueswir1 | (1ULL << TARGET_PHYS_ADDR_SPACE_BITS) - 1); |
282 | b5fc909e | pbrook | page_set_flags(startaddr & TARGET_PAGE_MASK, |
283 | 50a9569b | balrog | TARGET_PAGE_ALIGN(endaddr), |
284 | 50a9569b | balrog | PAGE_RESERVED); |
285 | 50a9569b | balrog | } |
286 | 50a9569b | balrog | } while (!feof(f));
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287 | 50a9569b | balrog | fclose(f); |
288 | 50a9569b | balrog | } |
289 | c8a706fe | pbrook | mmap_unlock(); |
290 | 50a9569b | balrog | } |
291 | 50a9569b | balrog | #endif
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292 | 54936004 | bellard | } |
293 | 54936004 | bellard | |
294 | 434929bf | aliguori | static inline PageDesc **page_l1_map(target_ulong index) |
295 | 54936004 | bellard | { |
296 | 17e2377a | pbrook | #if TARGET_LONG_BITS > 32 |
297 | 17e2377a | pbrook | /* Host memory outside guest VM. For 32-bit targets we have already
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298 | 17e2377a | pbrook | excluded high addresses. */
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299 | d8173e0f | ths | if (index > ((target_ulong)L2_SIZE * L1_SIZE))
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300 | 17e2377a | pbrook | return NULL; |
301 | 17e2377a | pbrook | #endif
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302 | 434929bf | aliguori | return &l1_map[index >> L2_BITS];
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303 | 434929bf | aliguori | } |
304 | 434929bf | aliguori | |
305 | 434929bf | aliguori | static inline PageDesc *page_find_alloc(target_ulong index) |
306 | 434929bf | aliguori | { |
307 | 434929bf | aliguori | PageDesc **lp, *p; |
308 | 434929bf | aliguori | lp = page_l1_map(index); |
309 | 434929bf | aliguori | if (!lp)
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310 | 434929bf | aliguori | return NULL; |
311 | 434929bf | aliguori | |
312 | 54936004 | bellard | p = *lp; |
313 | 54936004 | bellard | if (!p) {
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314 | 54936004 | bellard | /* allocate if not found */
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315 | 17e2377a | pbrook | #if defined(CONFIG_USER_ONLY)
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316 | 17e2377a | pbrook | size_t len = sizeof(PageDesc) * L2_SIZE;
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317 | 17e2377a | pbrook | /* Don't use qemu_malloc because it may recurse. */
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318 | 660f11be | Blue Swirl | p = mmap(NULL, len, PROT_READ | PROT_WRITE,
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319 | 17e2377a | pbrook | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
320 | 54936004 | bellard | *lp = p; |
321 | fb1c2cd7 | aurel32 | if (h2g_valid(p)) {
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322 | fb1c2cd7 | aurel32 | unsigned long addr = h2g(p); |
323 | 17e2377a | pbrook | page_set_flags(addr & TARGET_PAGE_MASK, |
324 | 17e2377a | pbrook | TARGET_PAGE_ALIGN(addr + len), |
325 | 17e2377a | pbrook | PAGE_RESERVED); |
326 | 17e2377a | pbrook | } |
327 | 17e2377a | pbrook | #else
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328 | 17e2377a | pbrook | p = qemu_mallocz(sizeof(PageDesc) * L2_SIZE);
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329 | 17e2377a | pbrook | *lp = p; |
330 | 17e2377a | pbrook | #endif
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331 | 54936004 | bellard | } |
332 | 54936004 | bellard | return p + (index & (L2_SIZE - 1)); |
333 | 54936004 | bellard | } |
334 | 54936004 | bellard | |
335 | 00f82b8a | aurel32 | static inline PageDesc *page_find(target_ulong index) |
336 | 54936004 | bellard | { |
337 | 434929bf | aliguori | PageDesc **lp, *p; |
338 | 434929bf | aliguori | lp = page_l1_map(index); |
339 | 434929bf | aliguori | if (!lp)
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340 | 434929bf | aliguori | return NULL; |
341 | 54936004 | bellard | |
342 | 434929bf | aliguori | p = *lp; |
343 | 660f11be | Blue Swirl | if (!p) {
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344 | 660f11be | Blue Swirl | return NULL; |
345 | 660f11be | Blue Swirl | } |
346 | fd6ce8f6 | bellard | return p + (index & (L2_SIZE - 1)); |
347 | fd6ce8f6 | bellard | } |
348 | fd6ce8f6 | bellard | |
349 | c227f099 | Anthony Liguori | static PhysPageDesc *phys_page_find_alloc(target_phys_addr_t index, int alloc) |
350 | 92e873b9 | bellard | { |
351 | 108c49b8 | bellard | void **lp, **p;
|
352 | e3f4e2a4 | pbrook | PhysPageDesc *pd; |
353 | 92e873b9 | bellard | |
354 | 108c49b8 | bellard | p = (void **)l1_phys_map;
|
355 | 108c49b8 | bellard | #if TARGET_PHYS_ADDR_SPACE_BITS > 32 |
356 | 108c49b8 | bellard | |
357 | 108c49b8 | bellard | #if TARGET_PHYS_ADDR_SPACE_BITS > (32 + L1_BITS) |
358 | 108c49b8 | bellard | #error unsupported TARGET_PHYS_ADDR_SPACE_BITS
|
359 | 108c49b8 | bellard | #endif
|
360 | 108c49b8 | bellard | lp = p + ((index >> (L1_BITS + L2_BITS)) & (L1_SIZE - 1));
|
361 | 92e873b9 | bellard | p = *lp; |
362 | 92e873b9 | bellard | if (!p) {
|
363 | 92e873b9 | bellard | /* allocate if not found */
|
364 | 108c49b8 | bellard | if (!alloc)
|
365 | 108c49b8 | bellard | return NULL; |
366 | 108c49b8 | bellard | p = qemu_vmalloc(sizeof(void *) * L1_SIZE); |
367 | 108c49b8 | bellard | memset(p, 0, sizeof(void *) * L1_SIZE); |
368 | 108c49b8 | bellard | *lp = p; |
369 | 108c49b8 | bellard | } |
370 | 108c49b8 | bellard | #endif
|
371 | 108c49b8 | bellard | lp = p + ((index >> L2_BITS) & (L1_SIZE - 1));
|
372 | e3f4e2a4 | pbrook | pd = *lp; |
373 | e3f4e2a4 | pbrook | if (!pd) {
|
374 | e3f4e2a4 | pbrook | int i;
|
375 | 108c49b8 | bellard | /* allocate if not found */
|
376 | 108c49b8 | bellard | if (!alloc)
|
377 | 108c49b8 | bellard | return NULL; |
378 | e3f4e2a4 | pbrook | pd = qemu_vmalloc(sizeof(PhysPageDesc) * L2_SIZE);
|
379 | e3f4e2a4 | pbrook | *lp = pd; |
380 | 67c4d23c | pbrook | for (i = 0; i < L2_SIZE; i++) { |
381 | e3f4e2a4 | pbrook | pd[i].phys_offset = IO_MEM_UNASSIGNED; |
382 | 67c4d23c | pbrook | pd[i].region_offset = (index + i) << TARGET_PAGE_BITS; |
383 | 67c4d23c | pbrook | } |
384 | 92e873b9 | bellard | } |
385 | e3f4e2a4 | pbrook | return ((PhysPageDesc *)pd) + (index & (L2_SIZE - 1)); |
386 | 92e873b9 | bellard | } |
387 | 92e873b9 | bellard | |
388 | c227f099 | Anthony Liguori | static inline PhysPageDesc *phys_page_find(target_phys_addr_t index) |
389 | 92e873b9 | bellard | { |
390 | 108c49b8 | bellard | return phys_page_find_alloc(index, 0); |
391 | 92e873b9 | bellard | } |
392 | 92e873b9 | bellard | |
393 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
394 | c227f099 | Anthony Liguori | static void tlb_protect_code(ram_addr_t ram_addr); |
395 | c227f099 | Anthony Liguori | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, |
396 | 3a7d929e | bellard | target_ulong vaddr); |
397 | c8a706fe | pbrook | #define mmap_lock() do { } while(0) |
398 | c8a706fe | pbrook | #define mmap_unlock() do { } while(0) |
399 | 9fa3e853 | bellard | #endif
|
400 | fd6ce8f6 | bellard | |
401 | 4369415f | bellard | #define DEFAULT_CODE_GEN_BUFFER_SIZE (32 * 1024 * 1024) |
402 | 4369415f | bellard | |
403 | 4369415f | bellard | #if defined(CONFIG_USER_ONLY)
|
404 | ccbb4d44 | Stuart Brady | /* Currently it is not recommended to allocate big chunks of data in
|
405 | 4369415f | bellard | user mode. It will change when a dedicated libc will be used */
|
406 | 4369415f | bellard | #define USE_STATIC_CODE_GEN_BUFFER
|
407 | 4369415f | bellard | #endif
|
408 | 4369415f | bellard | |
409 | 4369415f | bellard | #ifdef USE_STATIC_CODE_GEN_BUFFER
|
410 | 4369415f | bellard | static uint8_t static_code_gen_buffer[DEFAULT_CODE_GEN_BUFFER_SIZE];
|
411 | 4369415f | bellard | #endif
|
412 | 4369415f | bellard | |
413 | 8fcd3692 | blueswir1 | static void code_gen_alloc(unsigned long tb_size) |
414 | 26a5f13b | bellard | { |
415 | 4369415f | bellard | #ifdef USE_STATIC_CODE_GEN_BUFFER
|
416 | 4369415f | bellard | code_gen_buffer = static_code_gen_buffer; |
417 | 4369415f | bellard | code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE; |
418 | 4369415f | bellard | map_exec(code_gen_buffer, code_gen_buffer_size); |
419 | 4369415f | bellard | #else
|
420 | 26a5f13b | bellard | code_gen_buffer_size = tb_size; |
421 | 26a5f13b | bellard | if (code_gen_buffer_size == 0) { |
422 | 4369415f | bellard | #if defined(CONFIG_USER_ONLY)
|
423 | 4369415f | bellard | /* in user mode, phys_ram_size is not meaningful */
|
424 | 4369415f | bellard | code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE; |
425 | 4369415f | bellard | #else
|
426 | ccbb4d44 | Stuart Brady | /* XXX: needs adjustments */
|
427 | 94a6b54f | pbrook | code_gen_buffer_size = (unsigned long)(ram_size / 4); |
428 | 4369415f | bellard | #endif
|
429 | 26a5f13b | bellard | } |
430 | 26a5f13b | bellard | if (code_gen_buffer_size < MIN_CODE_GEN_BUFFER_SIZE)
|
431 | 26a5f13b | bellard | code_gen_buffer_size = MIN_CODE_GEN_BUFFER_SIZE; |
432 | 26a5f13b | bellard | /* The code gen buffer location may have constraints depending on
|
433 | 26a5f13b | bellard | the host cpu and OS */
|
434 | 26a5f13b | bellard | #if defined(__linux__)
|
435 | 26a5f13b | bellard | { |
436 | 26a5f13b | bellard | int flags;
|
437 | 141ac468 | blueswir1 | void *start = NULL; |
438 | 141ac468 | blueswir1 | |
439 | 26a5f13b | bellard | flags = MAP_PRIVATE | MAP_ANONYMOUS; |
440 | 26a5f13b | bellard | #if defined(__x86_64__)
|
441 | 26a5f13b | bellard | flags |= MAP_32BIT; |
442 | 26a5f13b | bellard | /* Cannot map more than that */
|
443 | 26a5f13b | bellard | if (code_gen_buffer_size > (800 * 1024 * 1024)) |
444 | 26a5f13b | bellard | code_gen_buffer_size = (800 * 1024 * 1024); |
445 | 141ac468 | blueswir1 | #elif defined(__sparc_v9__)
|
446 | 141ac468 | blueswir1 | // Map the buffer below 2G, so we can use direct calls and branches
|
447 | 141ac468 | blueswir1 | flags |= MAP_FIXED; |
448 | 141ac468 | blueswir1 | start = (void *) 0x60000000UL; |
449 | 141ac468 | blueswir1 | if (code_gen_buffer_size > (512 * 1024 * 1024)) |
450 | 141ac468 | blueswir1 | code_gen_buffer_size = (512 * 1024 * 1024); |
451 | 1cb0661e | balrog | #elif defined(__arm__)
|
452 | 63d41246 | balrog | /* Map the buffer below 32M, so we can use direct calls and branches */
|
453 | 1cb0661e | balrog | flags |= MAP_FIXED; |
454 | 1cb0661e | balrog | start = (void *) 0x01000000UL; |
455 | 1cb0661e | balrog | if (code_gen_buffer_size > 16 * 1024 * 1024) |
456 | 1cb0661e | balrog | code_gen_buffer_size = 16 * 1024 * 1024; |
457 | 26a5f13b | bellard | #endif
|
458 | 141ac468 | blueswir1 | code_gen_buffer = mmap(start, code_gen_buffer_size, |
459 | 141ac468 | blueswir1 | PROT_WRITE | PROT_READ | PROT_EXEC, |
460 | 26a5f13b | bellard | flags, -1, 0); |
461 | 26a5f13b | bellard | if (code_gen_buffer == MAP_FAILED) {
|
462 | 26a5f13b | bellard | fprintf(stderr, "Could not allocate dynamic translator buffer\n");
|
463 | 26a5f13b | bellard | exit(1);
|
464 | 26a5f13b | bellard | } |
465 | 26a5f13b | bellard | } |
466 | c5e97233 | blueswir1 | #elif defined(__FreeBSD__) || defined(__DragonFly__)
|
467 | 06e67a82 | aliguori | { |
468 | 06e67a82 | aliguori | int flags;
|
469 | 06e67a82 | aliguori | void *addr = NULL; |
470 | 06e67a82 | aliguori | flags = MAP_PRIVATE | MAP_ANONYMOUS; |
471 | 06e67a82 | aliguori | #if defined(__x86_64__)
|
472 | 06e67a82 | aliguori | /* FreeBSD doesn't have MAP_32BIT, use MAP_FIXED and assume
|
473 | 06e67a82 | aliguori | * 0x40000000 is free */
|
474 | 06e67a82 | aliguori | flags |= MAP_FIXED; |
475 | 06e67a82 | aliguori | addr = (void *)0x40000000; |
476 | 06e67a82 | aliguori | /* Cannot map more than that */
|
477 | 06e67a82 | aliguori | if (code_gen_buffer_size > (800 * 1024 * 1024)) |
478 | 06e67a82 | aliguori | code_gen_buffer_size = (800 * 1024 * 1024); |
479 | 06e67a82 | aliguori | #endif
|
480 | 06e67a82 | aliguori | code_gen_buffer = mmap(addr, code_gen_buffer_size, |
481 | 06e67a82 | aliguori | PROT_WRITE | PROT_READ | PROT_EXEC, |
482 | 06e67a82 | aliguori | flags, -1, 0); |
483 | 06e67a82 | aliguori | if (code_gen_buffer == MAP_FAILED) {
|
484 | 06e67a82 | aliguori | fprintf(stderr, "Could not allocate dynamic translator buffer\n");
|
485 | 06e67a82 | aliguori | exit(1);
|
486 | 06e67a82 | aliguori | } |
487 | 06e67a82 | aliguori | } |
488 | 26a5f13b | bellard | #else
|
489 | 26a5f13b | bellard | code_gen_buffer = qemu_malloc(code_gen_buffer_size); |
490 | 26a5f13b | bellard | map_exec(code_gen_buffer, code_gen_buffer_size); |
491 | 26a5f13b | bellard | #endif
|
492 | 4369415f | bellard | #endif /* !USE_STATIC_CODE_GEN_BUFFER */ |
493 | 26a5f13b | bellard | map_exec(code_gen_prologue, sizeof(code_gen_prologue));
|
494 | 26a5f13b | bellard | code_gen_buffer_max_size = code_gen_buffer_size - |
495 | 26a5f13b | bellard | code_gen_max_block_size(); |
496 | 26a5f13b | bellard | code_gen_max_blocks = code_gen_buffer_size / CODE_GEN_AVG_BLOCK_SIZE; |
497 | 26a5f13b | bellard | tbs = qemu_malloc(code_gen_max_blocks * sizeof(TranslationBlock));
|
498 | 26a5f13b | bellard | } |
499 | 26a5f13b | bellard | |
500 | 26a5f13b | bellard | /* Must be called before using the QEMU cpus. 'tb_size' is the size
|
501 | 26a5f13b | bellard | (in bytes) allocated to the translation buffer. Zero means default
|
502 | 26a5f13b | bellard | size. */
|
503 | 26a5f13b | bellard | void cpu_exec_init_all(unsigned long tb_size) |
504 | 26a5f13b | bellard | { |
505 | 26a5f13b | bellard | cpu_gen_init(); |
506 | 26a5f13b | bellard | code_gen_alloc(tb_size); |
507 | 26a5f13b | bellard | code_gen_ptr = code_gen_buffer; |
508 | 4369415f | bellard | page_init(); |
509 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
|
510 | 26a5f13b | bellard | io_mem_init(); |
511 | e2eef170 | pbrook | #endif
|
512 | 26a5f13b | bellard | } |
513 | 26a5f13b | bellard | |
514 | 9656f324 | pbrook | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY)
|
515 | 9656f324 | pbrook | |
516 | d4bfa4d7 | Juan Quintela | static void cpu_common_pre_save(void *opaque) |
517 | 9656f324 | pbrook | { |
518 | d4bfa4d7 | Juan Quintela | CPUState *env = opaque; |
519 | 9656f324 | pbrook | |
520 | 4c0960c0 | Avi Kivity | cpu_synchronize_state(env); |
521 | 9656f324 | pbrook | } |
522 | 9656f324 | pbrook | |
523 | e7f4eff7 | Juan Quintela | static int cpu_common_pre_load(void *opaque) |
524 | 9656f324 | pbrook | { |
525 | 9656f324 | pbrook | CPUState *env = opaque; |
526 | 9656f324 | pbrook | |
527 | 4c0960c0 | Avi Kivity | cpu_synchronize_state(env); |
528 | e7f4eff7 | Juan Quintela | return 0; |
529 | e7f4eff7 | Juan Quintela | } |
530 | e7f4eff7 | Juan Quintela | |
531 | e59fb374 | Juan Quintela | static int cpu_common_post_load(void *opaque, int version_id) |
532 | e7f4eff7 | Juan Quintela | { |
533 | e7f4eff7 | Juan Quintela | CPUState *env = opaque; |
534 | 9656f324 | pbrook | |
535 | 3098dba0 | aurel32 | /* 0x01 was CPU_INTERRUPT_EXIT. This line can be removed when the
|
536 | 3098dba0 | aurel32 | version_id is increased. */
|
537 | 3098dba0 | aurel32 | env->interrupt_request &= ~0x01;
|
538 | 9656f324 | pbrook | tlb_flush(env, 1);
|
539 | 9656f324 | pbrook | |
540 | 9656f324 | pbrook | return 0; |
541 | 9656f324 | pbrook | } |
542 | e7f4eff7 | Juan Quintela | |
543 | e7f4eff7 | Juan Quintela | static const VMStateDescription vmstate_cpu_common = { |
544 | e7f4eff7 | Juan Quintela | .name = "cpu_common",
|
545 | e7f4eff7 | Juan Quintela | .version_id = 1,
|
546 | e7f4eff7 | Juan Quintela | .minimum_version_id = 1,
|
547 | e7f4eff7 | Juan Quintela | .minimum_version_id_old = 1,
|
548 | e7f4eff7 | Juan Quintela | .pre_save = cpu_common_pre_save, |
549 | e7f4eff7 | Juan Quintela | .pre_load = cpu_common_pre_load, |
550 | e7f4eff7 | Juan Quintela | .post_load = cpu_common_post_load, |
551 | e7f4eff7 | Juan Quintela | .fields = (VMStateField []) { |
552 | e7f4eff7 | Juan Quintela | VMSTATE_UINT32(halted, CPUState), |
553 | e7f4eff7 | Juan Quintela | VMSTATE_UINT32(interrupt_request, CPUState), |
554 | e7f4eff7 | Juan Quintela | VMSTATE_END_OF_LIST() |
555 | e7f4eff7 | Juan Quintela | } |
556 | e7f4eff7 | Juan Quintela | }; |
557 | 9656f324 | pbrook | #endif
|
558 | 9656f324 | pbrook | |
559 | 950f1472 | Glauber Costa | CPUState *qemu_get_cpu(int cpu)
|
560 | 950f1472 | Glauber Costa | { |
561 | 950f1472 | Glauber Costa | CPUState *env = first_cpu; |
562 | 950f1472 | Glauber Costa | |
563 | 950f1472 | Glauber Costa | while (env) {
|
564 | 950f1472 | Glauber Costa | if (env->cpu_index == cpu)
|
565 | 950f1472 | Glauber Costa | break;
|
566 | 950f1472 | Glauber Costa | env = env->next_cpu; |
567 | 950f1472 | Glauber Costa | } |
568 | 950f1472 | Glauber Costa | |
569 | 950f1472 | Glauber Costa | return env;
|
570 | 950f1472 | Glauber Costa | } |
571 | 950f1472 | Glauber Costa | |
572 | 6a00d601 | bellard | void cpu_exec_init(CPUState *env)
|
573 | fd6ce8f6 | bellard | { |
574 | 6a00d601 | bellard | CPUState **penv; |
575 | 6a00d601 | bellard | int cpu_index;
|
576 | 6a00d601 | bellard | |
577 | c2764719 | pbrook | #if defined(CONFIG_USER_ONLY)
|
578 | c2764719 | pbrook | cpu_list_lock(); |
579 | c2764719 | pbrook | #endif
|
580 | 6a00d601 | bellard | env->next_cpu = NULL;
|
581 | 6a00d601 | bellard | penv = &first_cpu; |
582 | 6a00d601 | bellard | cpu_index = 0;
|
583 | 6a00d601 | bellard | while (*penv != NULL) { |
584 | 1e9fa730 | Nathan Froyd | penv = &(*penv)->next_cpu; |
585 | 6a00d601 | bellard | cpu_index++; |
586 | 6a00d601 | bellard | } |
587 | 6a00d601 | bellard | env->cpu_index = cpu_index; |
588 | 268a362c | aliguori | env->numa_node = 0;
|
589 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->breakpoints); |
590 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->watchpoints); |
591 | 6a00d601 | bellard | *penv = env; |
592 | c2764719 | pbrook | #if defined(CONFIG_USER_ONLY)
|
593 | c2764719 | pbrook | cpu_list_unlock(); |
594 | c2764719 | pbrook | #endif
|
595 | b3c7724c | pbrook | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY)
|
596 | e7f4eff7 | Juan Quintela | vmstate_register(cpu_index, &vmstate_cpu_common, env); |
597 | b3c7724c | pbrook | register_savevm("cpu", cpu_index, CPU_SAVE_VERSION,
|
598 | b3c7724c | pbrook | cpu_save, cpu_load, env); |
599 | b3c7724c | pbrook | #endif
|
600 | fd6ce8f6 | bellard | } |
601 | fd6ce8f6 | bellard | |
602 | 9fa3e853 | bellard | static inline void invalidate_page_bitmap(PageDesc *p) |
603 | 9fa3e853 | bellard | { |
604 | 9fa3e853 | bellard | if (p->code_bitmap) {
|
605 | 59817ccb | bellard | qemu_free(p->code_bitmap); |
606 | 9fa3e853 | bellard | p->code_bitmap = NULL;
|
607 | 9fa3e853 | bellard | } |
608 | 9fa3e853 | bellard | p->code_write_count = 0;
|
609 | 9fa3e853 | bellard | } |
610 | 9fa3e853 | bellard | |
611 | fd6ce8f6 | bellard | /* set to NULL all the 'first_tb' fields in all PageDescs */
|
612 | fd6ce8f6 | bellard | static void page_flush_tb(void) |
613 | fd6ce8f6 | bellard | { |
614 | fd6ce8f6 | bellard | int i, j;
|
615 | fd6ce8f6 | bellard | PageDesc *p; |
616 | fd6ce8f6 | bellard | |
617 | fd6ce8f6 | bellard | for(i = 0; i < L1_SIZE; i++) { |
618 | fd6ce8f6 | bellard | p = l1_map[i]; |
619 | fd6ce8f6 | bellard | if (p) {
|
620 | 9fa3e853 | bellard | for(j = 0; j < L2_SIZE; j++) { |
621 | 9fa3e853 | bellard | p->first_tb = NULL;
|
622 | 9fa3e853 | bellard | invalidate_page_bitmap(p); |
623 | 9fa3e853 | bellard | p++; |
624 | 9fa3e853 | bellard | } |
625 | fd6ce8f6 | bellard | } |
626 | fd6ce8f6 | bellard | } |
627 | fd6ce8f6 | bellard | } |
628 | fd6ce8f6 | bellard | |
629 | fd6ce8f6 | bellard | /* flush all the translation blocks */
|
630 | d4e8164f | bellard | /* XXX: tb_flush is currently not thread safe */
|
631 | 6a00d601 | bellard | void tb_flush(CPUState *env1)
|
632 | fd6ce8f6 | bellard | { |
633 | 6a00d601 | bellard | CPUState *env; |
634 | 0124311e | bellard | #if defined(DEBUG_FLUSH)
|
635 | ab3d1727 | blueswir1 | printf("qemu: flush code_size=%ld nb_tbs=%d avg_tb_size=%ld\n",
|
636 | ab3d1727 | blueswir1 | (unsigned long)(code_gen_ptr - code_gen_buffer), |
637 | ab3d1727 | blueswir1 | nb_tbs, nb_tbs > 0 ?
|
638 | ab3d1727 | blueswir1 | ((unsigned long)(code_gen_ptr - code_gen_buffer)) / nb_tbs : 0); |
639 | fd6ce8f6 | bellard | #endif
|
640 | 26a5f13b | bellard | if ((unsigned long)(code_gen_ptr - code_gen_buffer) > code_gen_buffer_size) |
641 | a208e54a | pbrook | cpu_abort(env1, "Internal error: code buffer overflow\n");
|
642 | a208e54a | pbrook | |
643 | fd6ce8f6 | bellard | nb_tbs = 0;
|
644 | 3b46e624 | ths | |
645 | 6a00d601 | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
646 | 6a00d601 | bellard | memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *)); |
647 | 6a00d601 | bellard | } |
648 | 9fa3e853 | bellard | |
649 | 8a8a608f | bellard | memset (tb_phys_hash, 0, CODE_GEN_PHYS_HASH_SIZE * sizeof (void *)); |
650 | fd6ce8f6 | bellard | page_flush_tb(); |
651 | 9fa3e853 | bellard | |
652 | fd6ce8f6 | bellard | code_gen_ptr = code_gen_buffer; |
653 | d4e8164f | bellard | /* XXX: flush processor icache at this point if cache flush is
|
654 | d4e8164f | bellard | expensive */
|
655 | e3db7226 | bellard | tb_flush_count++; |
656 | fd6ce8f6 | bellard | } |
657 | fd6ce8f6 | bellard | |
658 | fd6ce8f6 | bellard | #ifdef DEBUG_TB_CHECK
|
659 | fd6ce8f6 | bellard | |
660 | bc98a7ef | j_mayer | static void tb_invalidate_check(target_ulong address) |
661 | fd6ce8f6 | bellard | { |
662 | fd6ce8f6 | bellard | TranslationBlock *tb; |
663 | fd6ce8f6 | bellard | int i;
|
664 | fd6ce8f6 | bellard | address &= TARGET_PAGE_MASK; |
665 | 99773bd4 | pbrook | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
666 | 99773bd4 | pbrook | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { |
667 | fd6ce8f6 | bellard | if (!(address + TARGET_PAGE_SIZE <= tb->pc ||
|
668 | fd6ce8f6 | bellard | address >= tb->pc + tb->size)) { |
669 | 0bf9e31a | Blue Swirl | printf("ERROR invalidate: address=" TARGET_FMT_lx
|
670 | 0bf9e31a | Blue Swirl | " PC=%08lx size=%04x\n",
|
671 | 99773bd4 | pbrook | address, (long)tb->pc, tb->size);
|
672 | fd6ce8f6 | bellard | } |
673 | fd6ce8f6 | bellard | } |
674 | fd6ce8f6 | bellard | } |
675 | fd6ce8f6 | bellard | } |
676 | fd6ce8f6 | bellard | |
677 | fd6ce8f6 | bellard | /* verify that all the pages have correct rights for code */
|
678 | fd6ce8f6 | bellard | static void tb_page_check(void) |
679 | fd6ce8f6 | bellard | { |
680 | fd6ce8f6 | bellard | TranslationBlock *tb; |
681 | fd6ce8f6 | bellard | int i, flags1, flags2;
|
682 | 3b46e624 | ths | |
683 | 99773bd4 | pbrook | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
684 | 99773bd4 | pbrook | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { |
685 | fd6ce8f6 | bellard | flags1 = page_get_flags(tb->pc); |
686 | fd6ce8f6 | bellard | flags2 = page_get_flags(tb->pc + tb->size - 1);
|
687 | fd6ce8f6 | bellard | if ((flags1 & PAGE_WRITE) || (flags2 & PAGE_WRITE)) {
|
688 | fd6ce8f6 | bellard | printf("ERROR page flags: PC=%08lx size=%04x f1=%x f2=%x\n",
|
689 | 99773bd4 | pbrook | (long)tb->pc, tb->size, flags1, flags2);
|
690 | fd6ce8f6 | bellard | } |
691 | fd6ce8f6 | bellard | } |
692 | fd6ce8f6 | bellard | } |
693 | fd6ce8f6 | bellard | } |
694 | fd6ce8f6 | bellard | |
695 | fd6ce8f6 | bellard | #endif
|
696 | fd6ce8f6 | bellard | |
697 | fd6ce8f6 | bellard | /* invalidate one TB */
|
698 | fd6ce8f6 | bellard | static inline void tb_remove(TranslationBlock **ptb, TranslationBlock *tb, |
699 | fd6ce8f6 | bellard | int next_offset)
|
700 | fd6ce8f6 | bellard | { |
701 | fd6ce8f6 | bellard | TranslationBlock *tb1; |
702 | fd6ce8f6 | bellard | for(;;) {
|
703 | fd6ce8f6 | bellard | tb1 = *ptb; |
704 | fd6ce8f6 | bellard | if (tb1 == tb) {
|
705 | fd6ce8f6 | bellard | *ptb = *(TranslationBlock **)((char *)tb1 + next_offset);
|
706 | fd6ce8f6 | bellard | break;
|
707 | fd6ce8f6 | bellard | } |
708 | fd6ce8f6 | bellard | ptb = (TranslationBlock **)((char *)tb1 + next_offset);
|
709 | fd6ce8f6 | bellard | } |
710 | fd6ce8f6 | bellard | } |
711 | fd6ce8f6 | bellard | |
712 | 9fa3e853 | bellard | static inline void tb_page_remove(TranslationBlock **ptb, TranslationBlock *tb) |
713 | 9fa3e853 | bellard | { |
714 | 9fa3e853 | bellard | TranslationBlock *tb1; |
715 | 9fa3e853 | bellard | unsigned int n1; |
716 | 9fa3e853 | bellard | |
717 | 9fa3e853 | bellard | for(;;) {
|
718 | 9fa3e853 | bellard | tb1 = *ptb; |
719 | 9fa3e853 | bellard | n1 = (long)tb1 & 3; |
720 | 9fa3e853 | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
721 | 9fa3e853 | bellard | if (tb1 == tb) {
|
722 | 9fa3e853 | bellard | *ptb = tb1->page_next[n1]; |
723 | 9fa3e853 | bellard | break;
|
724 | 9fa3e853 | bellard | } |
725 | 9fa3e853 | bellard | ptb = &tb1->page_next[n1]; |
726 | 9fa3e853 | bellard | } |
727 | 9fa3e853 | bellard | } |
728 | 9fa3e853 | bellard | |
729 | d4e8164f | bellard | static inline void tb_jmp_remove(TranslationBlock *tb, int n) |
730 | d4e8164f | bellard | { |
731 | d4e8164f | bellard | TranslationBlock *tb1, **ptb; |
732 | d4e8164f | bellard | unsigned int n1; |
733 | d4e8164f | bellard | |
734 | d4e8164f | bellard | ptb = &tb->jmp_next[n]; |
735 | d4e8164f | bellard | tb1 = *ptb; |
736 | d4e8164f | bellard | if (tb1) {
|
737 | d4e8164f | bellard | /* find tb(n) in circular list */
|
738 | d4e8164f | bellard | for(;;) {
|
739 | d4e8164f | bellard | tb1 = *ptb; |
740 | d4e8164f | bellard | n1 = (long)tb1 & 3; |
741 | d4e8164f | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
742 | d4e8164f | bellard | if (n1 == n && tb1 == tb)
|
743 | d4e8164f | bellard | break;
|
744 | d4e8164f | bellard | if (n1 == 2) { |
745 | d4e8164f | bellard | ptb = &tb1->jmp_first; |
746 | d4e8164f | bellard | } else {
|
747 | d4e8164f | bellard | ptb = &tb1->jmp_next[n1]; |
748 | d4e8164f | bellard | } |
749 | d4e8164f | bellard | } |
750 | d4e8164f | bellard | /* now we can suppress tb(n) from the list */
|
751 | d4e8164f | bellard | *ptb = tb->jmp_next[n]; |
752 | d4e8164f | bellard | |
753 | d4e8164f | bellard | tb->jmp_next[n] = NULL;
|
754 | d4e8164f | bellard | } |
755 | d4e8164f | bellard | } |
756 | d4e8164f | bellard | |
757 | d4e8164f | bellard | /* reset the jump entry 'n' of a TB so that it is not chained to
|
758 | d4e8164f | bellard | another TB */
|
759 | d4e8164f | bellard | static inline void tb_reset_jump(TranslationBlock *tb, int n) |
760 | d4e8164f | bellard | { |
761 | d4e8164f | bellard | tb_set_jmp_target(tb, n, (unsigned long)(tb->tc_ptr + tb->tb_next_offset[n])); |
762 | d4e8164f | bellard | } |
763 | d4e8164f | bellard | |
764 | 2e70f6ef | pbrook | void tb_phys_invalidate(TranslationBlock *tb, target_ulong page_addr)
|
765 | fd6ce8f6 | bellard | { |
766 | 6a00d601 | bellard | CPUState *env; |
767 | 8a40a180 | bellard | PageDesc *p; |
768 | d4e8164f | bellard | unsigned int h, n1; |
769 | c227f099 | Anthony Liguori | target_phys_addr_t phys_pc; |
770 | 8a40a180 | bellard | TranslationBlock *tb1, *tb2; |
771 | 3b46e624 | ths | |
772 | 8a40a180 | bellard | /* remove the TB from the hash list */
|
773 | 8a40a180 | bellard | phys_pc = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK);
|
774 | 8a40a180 | bellard | h = tb_phys_hash_func(phys_pc); |
775 | 5fafdf24 | ths | tb_remove(&tb_phys_hash[h], tb, |
776 | 8a40a180 | bellard | offsetof(TranslationBlock, phys_hash_next)); |
777 | 8a40a180 | bellard | |
778 | 8a40a180 | bellard | /* remove the TB from the page list */
|
779 | 8a40a180 | bellard | if (tb->page_addr[0] != page_addr) { |
780 | 8a40a180 | bellard | p = page_find(tb->page_addr[0] >> TARGET_PAGE_BITS);
|
781 | 8a40a180 | bellard | tb_page_remove(&p->first_tb, tb); |
782 | 8a40a180 | bellard | invalidate_page_bitmap(p); |
783 | 8a40a180 | bellard | } |
784 | 8a40a180 | bellard | if (tb->page_addr[1] != -1 && tb->page_addr[1] != page_addr) { |
785 | 8a40a180 | bellard | p = page_find(tb->page_addr[1] >> TARGET_PAGE_BITS);
|
786 | 8a40a180 | bellard | tb_page_remove(&p->first_tb, tb); |
787 | 8a40a180 | bellard | invalidate_page_bitmap(p); |
788 | 8a40a180 | bellard | } |
789 | 8a40a180 | bellard | |
790 | 36bdbe54 | bellard | tb_invalidated_flag = 1;
|
791 | 59817ccb | bellard | |
792 | fd6ce8f6 | bellard | /* remove the TB from the hash list */
|
793 | 8a40a180 | bellard | h = tb_jmp_cache_hash_func(tb->pc); |
794 | 6a00d601 | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
795 | 6a00d601 | bellard | if (env->tb_jmp_cache[h] == tb)
|
796 | 6a00d601 | bellard | env->tb_jmp_cache[h] = NULL;
|
797 | 6a00d601 | bellard | } |
798 | d4e8164f | bellard | |
799 | d4e8164f | bellard | /* suppress this TB from the two jump lists */
|
800 | d4e8164f | bellard | tb_jmp_remove(tb, 0);
|
801 | d4e8164f | bellard | tb_jmp_remove(tb, 1);
|
802 | d4e8164f | bellard | |
803 | d4e8164f | bellard | /* suppress any remaining jumps to this TB */
|
804 | d4e8164f | bellard | tb1 = tb->jmp_first; |
805 | d4e8164f | bellard | for(;;) {
|
806 | d4e8164f | bellard | n1 = (long)tb1 & 3; |
807 | d4e8164f | bellard | if (n1 == 2) |
808 | d4e8164f | bellard | break;
|
809 | d4e8164f | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
810 | d4e8164f | bellard | tb2 = tb1->jmp_next[n1]; |
811 | d4e8164f | bellard | tb_reset_jump(tb1, n1); |
812 | d4e8164f | bellard | tb1->jmp_next[n1] = NULL;
|
813 | d4e8164f | bellard | tb1 = tb2; |
814 | d4e8164f | bellard | } |
815 | d4e8164f | bellard | tb->jmp_first = (TranslationBlock *)((long)tb | 2); /* fail safe */ |
816 | 9fa3e853 | bellard | |
817 | e3db7226 | bellard | tb_phys_invalidate_count++; |
818 | 9fa3e853 | bellard | } |
819 | 9fa3e853 | bellard | |
820 | 9fa3e853 | bellard | static inline void set_bits(uint8_t *tab, int start, int len) |
821 | 9fa3e853 | bellard | { |
822 | 9fa3e853 | bellard | int end, mask, end1;
|
823 | 9fa3e853 | bellard | |
824 | 9fa3e853 | bellard | end = start + len; |
825 | 9fa3e853 | bellard | tab += start >> 3;
|
826 | 9fa3e853 | bellard | mask = 0xff << (start & 7); |
827 | 9fa3e853 | bellard | if ((start & ~7) == (end & ~7)) { |
828 | 9fa3e853 | bellard | if (start < end) {
|
829 | 9fa3e853 | bellard | mask &= ~(0xff << (end & 7)); |
830 | 9fa3e853 | bellard | *tab |= mask; |
831 | 9fa3e853 | bellard | } |
832 | 9fa3e853 | bellard | } else {
|
833 | 9fa3e853 | bellard | *tab++ |= mask; |
834 | 9fa3e853 | bellard | start = (start + 8) & ~7; |
835 | 9fa3e853 | bellard | end1 = end & ~7;
|
836 | 9fa3e853 | bellard | while (start < end1) {
|
837 | 9fa3e853 | bellard | *tab++ = 0xff;
|
838 | 9fa3e853 | bellard | start += 8;
|
839 | 9fa3e853 | bellard | } |
840 | 9fa3e853 | bellard | if (start < end) {
|
841 | 9fa3e853 | bellard | mask = ~(0xff << (end & 7)); |
842 | 9fa3e853 | bellard | *tab |= mask; |
843 | 9fa3e853 | bellard | } |
844 | 9fa3e853 | bellard | } |
845 | 9fa3e853 | bellard | } |
846 | 9fa3e853 | bellard | |
847 | 9fa3e853 | bellard | static void build_page_bitmap(PageDesc *p) |
848 | 9fa3e853 | bellard | { |
849 | 9fa3e853 | bellard | int n, tb_start, tb_end;
|
850 | 9fa3e853 | bellard | TranslationBlock *tb; |
851 | 3b46e624 | ths | |
852 | b2a7081a | pbrook | p->code_bitmap = qemu_mallocz(TARGET_PAGE_SIZE / 8);
|
853 | 9fa3e853 | bellard | |
854 | 9fa3e853 | bellard | tb = p->first_tb; |
855 | 9fa3e853 | bellard | while (tb != NULL) { |
856 | 9fa3e853 | bellard | n = (long)tb & 3; |
857 | 9fa3e853 | bellard | tb = (TranslationBlock *)((long)tb & ~3); |
858 | 9fa3e853 | bellard | /* NOTE: this is subtle as a TB may span two physical pages */
|
859 | 9fa3e853 | bellard | if (n == 0) { |
860 | 9fa3e853 | bellard | /* NOTE: tb_end may be after the end of the page, but
|
861 | 9fa3e853 | bellard | it is not a problem */
|
862 | 9fa3e853 | bellard | tb_start = tb->pc & ~TARGET_PAGE_MASK; |
863 | 9fa3e853 | bellard | tb_end = tb_start + tb->size; |
864 | 9fa3e853 | bellard | if (tb_end > TARGET_PAGE_SIZE)
|
865 | 9fa3e853 | bellard | tb_end = TARGET_PAGE_SIZE; |
866 | 9fa3e853 | bellard | } else {
|
867 | 9fa3e853 | bellard | tb_start = 0;
|
868 | 9fa3e853 | bellard | tb_end = ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); |
869 | 9fa3e853 | bellard | } |
870 | 9fa3e853 | bellard | set_bits(p->code_bitmap, tb_start, tb_end - tb_start); |
871 | 9fa3e853 | bellard | tb = tb->page_next[n]; |
872 | 9fa3e853 | bellard | } |
873 | 9fa3e853 | bellard | } |
874 | 9fa3e853 | bellard | |
875 | 2e70f6ef | pbrook | TranslationBlock *tb_gen_code(CPUState *env, |
876 | 2e70f6ef | pbrook | target_ulong pc, target_ulong cs_base, |
877 | 2e70f6ef | pbrook | int flags, int cflags) |
878 | d720b93d | bellard | { |
879 | d720b93d | bellard | TranslationBlock *tb; |
880 | d720b93d | bellard | uint8_t *tc_ptr; |
881 | d720b93d | bellard | target_ulong phys_pc, phys_page2, virt_page2; |
882 | d720b93d | bellard | int code_gen_size;
|
883 | d720b93d | bellard | |
884 | c27004ec | bellard | phys_pc = get_phys_addr_code(env, pc); |
885 | c27004ec | bellard | tb = tb_alloc(pc); |
886 | d720b93d | bellard | if (!tb) {
|
887 | d720b93d | bellard | /* flush must be done */
|
888 | d720b93d | bellard | tb_flush(env); |
889 | d720b93d | bellard | /* cannot fail at this point */
|
890 | c27004ec | bellard | tb = tb_alloc(pc); |
891 | 2e70f6ef | pbrook | /* Don't forget to invalidate previous TB info. */
|
892 | 2e70f6ef | pbrook | tb_invalidated_flag = 1;
|
893 | d720b93d | bellard | } |
894 | d720b93d | bellard | tc_ptr = code_gen_ptr; |
895 | d720b93d | bellard | tb->tc_ptr = tc_ptr; |
896 | d720b93d | bellard | tb->cs_base = cs_base; |
897 | d720b93d | bellard | tb->flags = flags; |
898 | d720b93d | bellard | tb->cflags = cflags; |
899 | d07bde88 | blueswir1 | cpu_gen_code(env, tb, &code_gen_size); |
900 | d720b93d | bellard | code_gen_ptr = (void *)(((unsigned long)code_gen_ptr + code_gen_size + CODE_GEN_ALIGN - 1) & ~(CODE_GEN_ALIGN - 1)); |
901 | 3b46e624 | ths | |
902 | d720b93d | bellard | /* check next page if needed */
|
903 | c27004ec | bellard | virt_page2 = (pc + tb->size - 1) & TARGET_PAGE_MASK;
|
904 | d720b93d | bellard | phys_page2 = -1;
|
905 | c27004ec | bellard | if ((pc & TARGET_PAGE_MASK) != virt_page2) {
|
906 | d720b93d | bellard | phys_page2 = get_phys_addr_code(env, virt_page2); |
907 | d720b93d | bellard | } |
908 | d720b93d | bellard | tb_link_phys(tb, phys_pc, phys_page2); |
909 | 2e70f6ef | pbrook | return tb;
|
910 | d720b93d | bellard | } |
911 | 3b46e624 | ths | |
912 | 9fa3e853 | bellard | /* invalidate all TBs which intersect with the target physical page
|
913 | 9fa3e853 | bellard | starting in range [start;end[. NOTE: start and end must refer to
|
914 | d720b93d | bellard | the same physical page. 'is_cpu_write_access' should be true if called
|
915 | d720b93d | bellard | from a real cpu write access: the virtual CPU will exit the current
|
916 | d720b93d | bellard | TB if code is modified inside this TB. */
|
917 | c227f099 | Anthony Liguori | void tb_invalidate_phys_page_range(target_phys_addr_t start, target_phys_addr_t end,
|
918 | d720b93d | bellard | int is_cpu_write_access)
|
919 | d720b93d | bellard | { |
920 | 6b917547 | aliguori | TranslationBlock *tb, *tb_next, *saved_tb; |
921 | d720b93d | bellard | CPUState *env = cpu_single_env; |
922 | 9fa3e853 | bellard | target_ulong tb_start, tb_end; |
923 | 6b917547 | aliguori | PageDesc *p; |
924 | 6b917547 | aliguori | int n;
|
925 | 6b917547 | aliguori | #ifdef TARGET_HAS_PRECISE_SMC
|
926 | 6b917547 | aliguori | int current_tb_not_found = is_cpu_write_access;
|
927 | 6b917547 | aliguori | TranslationBlock *current_tb = NULL;
|
928 | 6b917547 | aliguori | int current_tb_modified = 0; |
929 | 6b917547 | aliguori | target_ulong current_pc = 0;
|
930 | 6b917547 | aliguori | target_ulong current_cs_base = 0;
|
931 | 6b917547 | aliguori | int current_flags = 0; |
932 | 6b917547 | aliguori | #endif /* TARGET_HAS_PRECISE_SMC */ |
933 | 9fa3e853 | bellard | |
934 | 9fa3e853 | bellard | p = page_find(start >> TARGET_PAGE_BITS); |
935 | 5fafdf24 | ths | if (!p)
|
936 | 9fa3e853 | bellard | return;
|
937 | 5fafdf24 | ths | if (!p->code_bitmap &&
|
938 | d720b93d | bellard | ++p->code_write_count >= SMC_BITMAP_USE_THRESHOLD && |
939 | d720b93d | bellard | is_cpu_write_access) { |
940 | 9fa3e853 | bellard | /* build code bitmap */
|
941 | 9fa3e853 | bellard | build_page_bitmap(p); |
942 | 9fa3e853 | bellard | } |
943 | 9fa3e853 | bellard | |
944 | 9fa3e853 | bellard | /* we remove all the TBs in the range [start, end[ */
|
945 | 9fa3e853 | bellard | /* XXX: see if in some cases it could be faster to invalidate all the code */
|
946 | 9fa3e853 | bellard | tb = p->first_tb; |
947 | 9fa3e853 | bellard | while (tb != NULL) { |
948 | 9fa3e853 | bellard | n = (long)tb & 3; |
949 | 9fa3e853 | bellard | tb = (TranslationBlock *)((long)tb & ~3); |
950 | 9fa3e853 | bellard | tb_next = tb->page_next[n]; |
951 | 9fa3e853 | bellard | /* NOTE: this is subtle as a TB may span two physical pages */
|
952 | 9fa3e853 | bellard | if (n == 0) { |
953 | 9fa3e853 | bellard | /* NOTE: tb_end may be after the end of the page, but
|
954 | 9fa3e853 | bellard | it is not a problem */
|
955 | 9fa3e853 | bellard | tb_start = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK);
|
956 | 9fa3e853 | bellard | tb_end = tb_start + tb->size; |
957 | 9fa3e853 | bellard | } else {
|
958 | 9fa3e853 | bellard | tb_start = tb->page_addr[1];
|
959 | 9fa3e853 | bellard | tb_end = tb_start + ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); |
960 | 9fa3e853 | bellard | } |
961 | 9fa3e853 | bellard | if (!(tb_end <= start || tb_start >= end)) {
|
962 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
963 | d720b93d | bellard | if (current_tb_not_found) {
|
964 | d720b93d | bellard | current_tb_not_found = 0;
|
965 | d720b93d | bellard | current_tb = NULL;
|
966 | 2e70f6ef | pbrook | if (env->mem_io_pc) {
|
967 | d720b93d | bellard | /* now we have a real cpu fault */
|
968 | 2e70f6ef | pbrook | current_tb = tb_find_pc(env->mem_io_pc); |
969 | d720b93d | bellard | } |
970 | d720b93d | bellard | } |
971 | d720b93d | bellard | if (current_tb == tb &&
|
972 | 2e70f6ef | pbrook | (current_tb->cflags & CF_COUNT_MASK) != 1) {
|
973 | d720b93d | bellard | /* If we are modifying the current TB, we must stop
|
974 | d720b93d | bellard | its execution. We could be more precise by checking
|
975 | d720b93d | bellard | that the modification is after the current PC, but it
|
976 | d720b93d | bellard | would require a specialized function to partially
|
977 | d720b93d | bellard | restore the CPU state */
|
978 | 3b46e624 | ths | |
979 | d720b93d | bellard | current_tb_modified = 1;
|
980 | 5fafdf24 | ths | cpu_restore_state(current_tb, env, |
981 | 2e70f6ef | pbrook | env->mem_io_pc, NULL);
|
982 | 6b917547 | aliguori | cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, |
983 | 6b917547 | aliguori | ¤t_flags); |
984 | d720b93d | bellard | } |
985 | d720b93d | bellard | #endif /* TARGET_HAS_PRECISE_SMC */ |
986 | 6f5a9f7e | bellard | /* we need to do that to handle the case where a signal
|
987 | 6f5a9f7e | bellard | occurs while doing tb_phys_invalidate() */
|
988 | 6f5a9f7e | bellard | saved_tb = NULL;
|
989 | 6f5a9f7e | bellard | if (env) {
|
990 | 6f5a9f7e | bellard | saved_tb = env->current_tb; |
991 | 6f5a9f7e | bellard | env->current_tb = NULL;
|
992 | 6f5a9f7e | bellard | } |
993 | 9fa3e853 | bellard | tb_phys_invalidate(tb, -1);
|
994 | 6f5a9f7e | bellard | if (env) {
|
995 | 6f5a9f7e | bellard | env->current_tb = saved_tb; |
996 | 6f5a9f7e | bellard | if (env->interrupt_request && env->current_tb)
|
997 | 6f5a9f7e | bellard | cpu_interrupt(env, env->interrupt_request); |
998 | 6f5a9f7e | bellard | } |
999 | 9fa3e853 | bellard | } |
1000 | 9fa3e853 | bellard | tb = tb_next; |
1001 | 9fa3e853 | bellard | } |
1002 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
1003 | 9fa3e853 | bellard | /* if no code remaining, no need to continue to use slow writes */
|
1004 | 9fa3e853 | bellard | if (!p->first_tb) {
|
1005 | 9fa3e853 | bellard | invalidate_page_bitmap(p); |
1006 | d720b93d | bellard | if (is_cpu_write_access) {
|
1007 | 2e70f6ef | pbrook | tlb_unprotect_code_phys(env, start, env->mem_io_vaddr); |
1008 | d720b93d | bellard | } |
1009 | d720b93d | bellard | } |
1010 | d720b93d | bellard | #endif
|
1011 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1012 | d720b93d | bellard | if (current_tb_modified) {
|
1013 | d720b93d | bellard | /* we generate a block containing just the instruction
|
1014 | d720b93d | bellard | modifying the memory. It will ensure that it cannot modify
|
1015 | d720b93d | bellard | itself */
|
1016 | ea1c1802 | bellard | env->current_tb = NULL;
|
1017 | 2e70f6ef | pbrook | tb_gen_code(env, current_pc, current_cs_base, current_flags, 1);
|
1018 | d720b93d | bellard | cpu_resume_from_signal(env, NULL);
|
1019 | 9fa3e853 | bellard | } |
1020 | fd6ce8f6 | bellard | #endif
|
1021 | 9fa3e853 | bellard | } |
1022 | fd6ce8f6 | bellard | |
1023 | 9fa3e853 | bellard | /* len must be <= 8 and start must be a multiple of len */
|
1024 | c227f099 | Anthony Liguori | static inline void tb_invalidate_phys_page_fast(target_phys_addr_t start, int len) |
1025 | 9fa3e853 | bellard | { |
1026 | 9fa3e853 | bellard | PageDesc *p; |
1027 | 9fa3e853 | bellard | int offset, b;
|
1028 | 59817ccb | bellard | #if 0
|
1029 | a4193c8a | bellard | if (1) {
|
1030 | 93fcfe39 | aliguori | qemu_log("modifying code at 0x%x size=%d EIP=%x PC=%08x\n",
|
1031 | 93fcfe39 | aliguori | cpu_single_env->mem_io_vaddr, len,
|
1032 | 93fcfe39 | aliguori | cpu_single_env->eip,
|
1033 | 93fcfe39 | aliguori | cpu_single_env->eip + (long)cpu_single_env->segs[R_CS].base);
|
1034 | 59817ccb | bellard | }
|
1035 | 59817ccb | bellard | #endif
|
1036 | 9fa3e853 | bellard | p = page_find(start >> TARGET_PAGE_BITS); |
1037 | 5fafdf24 | ths | if (!p)
|
1038 | 9fa3e853 | bellard | return;
|
1039 | 9fa3e853 | bellard | if (p->code_bitmap) {
|
1040 | 9fa3e853 | bellard | offset = start & ~TARGET_PAGE_MASK; |
1041 | 9fa3e853 | bellard | b = p->code_bitmap[offset >> 3] >> (offset & 7); |
1042 | 9fa3e853 | bellard | if (b & ((1 << len) - 1)) |
1043 | 9fa3e853 | bellard | goto do_invalidate;
|
1044 | 9fa3e853 | bellard | } else {
|
1045 | 9fa3e853 | bellard | do_invalidate:
|
1046 | d720b93d | bellard | tb_invalidate_phys_page_range(start, start + len, 1);
|
1047 | 9fa3e853 | bellard | } |
1048 | 9fa3e853 | bellard | } |
1049 | 9fa3e853 | bellard | |
1050 | 9fa3e853 | bellard | #if !defined(CONFIG_SOFTMMU)
|
1051 | c227f099 | Anthony Liguori | static void tb_invalidate_phys_page(target_phys_addr_t addr, |
1052 | d720b93d | bellard | unsigned long pc, void *puc) |
1053 | 9fa3e853 | bellard | { |
1054 | 6b917547 | aliguori | TranslationBlock *tb; |
1055 | 9fa3e853 | bellard | PageDesc *p; |
1056 | 6b917547 | aliguori | int n;
|
1057 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1058 | 6b917547 | aliguori | TranslationBlock *current_tb = NULL;
|
1059 | d720b93d | bellard | CPUState *env = cpu_single_env; |
1060 | 6b917547 | aliguori | int current_tb_modified = 0; |
1061 | 6b917547 | aliguori | target_ulong current_pc = 0;
|
1062 | 6b917547 | aliguori | target_ulong current_cs_base = 0;
|
1063 | 6b917547 | aliguori | int current_flags = 0; |
1064 | d720b93d | bellard | #endif
|
1065 | 9fa3e853 | bellard | |
1066 | 9fa3e853 | bellard | addr &= TARGET_PAGE_MASK; |
1067 | 9fa3e853 | bellard | p = page_find(addr >> TARGET_PAGE_BITS); |
1068 | 5fafdf24 | ths | if (!p)
|
1069 | 9fa3e853 | bellard | return;
|
1070 | 9fa3e853 | bellard | tb = p->first_tb; |
1071 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1072 | d720b93d | bellard | if (tb && pc != 0) { |
1073 | d720b93d | bellard | current_tb = tb_find_pc(pc); |
1074 | d720b93d | bellard | } |
1075 | d720b93d | bellard | #endif
|
1076 | 9fa3e853 | bellard | while (tb != NULL) { |
1077 | 9fa3e853 | bellard | n = (long)tb & 3; |
1078 | 9fa3e853 | bellard | tb = (TranslationBlock *)((long)tb & ~3); |
1079 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1080 | d720b93d | bellard | if (current_tb == tb &&
|
1081 | 2e70f6ef | pbrook | (current_tb->cflags & CF_COUNT_MASK) != 1) {
|
1082 | d720b93d | bellard | /* If we are modifying the current TB, we must stop
|
1083 | d720b93d | bellard | its execution. We could be more precise by checking
|
1084 | d720b93d | bellard | that the modification is after the current PC, but it
|
1085 | d720b93d | bellard | would require a specialized function to partially
|
1086 | d720b93d | bellard | restore the CPU state */
|
1087 | 3b46e624 | ths | |
1088 | d720b93d | bellard | current_tb_modified = 1;
|
1089 | d720b93d | bellard | cpu_restore_state(current_tb, env, pc, puc); |
1090 | 6b917547 | aliguori | cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, |
1091 | 6b917547 | aliguori | ¤t_flags); |
1092 | d720b93d | bellard | } |
1093 | d720b93d | bellard | #endif /* TARGET_HAS_PRECISE_SMC */ |
1094 | 9fa3e853 | bellard | tb_phys_invalidate(tb, addr); |
1095 | 9fa3e853 | bellard | tb = tb->page_next[n]; |
1096 | 9fa3e853 | bellard | } |
1097 | fd6ce8f6 | bellard | p->first_tb = NULL;
|
1098 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1099 | d720b93d | bellard | if (current_tb_modified) {
|
1100 | d720b93d | bellard | /* we generate a block containing just the instruction
|
1101 | d720b93d | bellard | modifying the memory. It will ensure that it cannot modify
|
1102 | d720b93d | bellard | itself */
|
1103 | ea1c1802 | bellard | env->current_tb = NULL;
|
1104 | 2e70f6ef | pbrook | tb_gen_code(env, current_pc, current_cs_base, current_flags, 1);
|
1105 | d720b93d | bellard | cpu_resume_from_signal(env, puc); |
1106 | d720b93d | bellard | } |
1107 | d720b93d | bellard | #endif
|
1108 | fd6ce8f6 | bellard | } |
1109 | 9fa3e853 | bellard | #endif
|
1110 | fd6ce8f6 | bellard | |
1111 | fd6ce8f6 | bellard | /* add the tb in the target page and protect it if necessary */
|
1112 | 5fafdf24 | ths | static inline void tb_alloc_page(TranslationBlock *tb, |
1113 | 53a5960a | pbrook | unsigned int n, target_ulong page_addr) |
1114 | fd6ce8f6 | bellard | { |
1115 | fd6ce8f6 | bellard | PageDesc *p; |
1116 | 9fa3e853 | bellard | TranslationBlock *last_first_tb; |
1117 | 9fa3e853 | bellard | |
1118 | 9fa3e853 | bellard | tb->page_addr[n] = page_addr; |
1119 | 3a7d929e | bellard | p = page_find_alloc(page_addr >> TARGET_PAGE_BITS); |
1120 | 9fa3e853 | bellard | tb->page_next[n] = p->first_tb; |
1121 | 9fa3e853 | bellard | last_first_tb = p->first_tb; |
1122 | 9fa3e853 | bellard | p->first_tb = (TranslationBlock *)((long)tb | n);
|
1123 | 9fa3e853 | bellard | invalidate_page_bitmap(p); |
1124 | fd6ce8f6 | bellard | |
1125 | 107db443 | bellard | #if defined(TARGET_HAS_SMC) || 1 |
1126 | d720b93d | bellard | |
1127 | 9fa3e853 | bellard | #if defined(CONFIG_USER_ONLY)
|
1128 | fd6ce8f6 | bellard | if (p->flags & PAGE_WRITE) {
|
1129 | 53a5960a | pbrook | target_ulong addr; |
1130 | 53a5960a | pbrook | PageDesc *p2; |
1131 | 9fa3e853 | bellard | int prot;
|
1132 | 9fa3e853 | bellard | |
1133 | fd6ce8f6 | bellard | /* force the host page as non writable (writes will have a
|
1134 | fd6ce8f6 | bellard | page fault + mprotect overhead) */
|
1135 | 53a5960a | pbrook | page_addr &= qemu_host_page_mask; |
1136 | fd6ce8f6 | bellard | prot = 0;
|
1137 | 53a5960a | pbrook | for(addr = page_addr; addr < page_addr + qemu_host_page_size;
|
1138 | 53a5960a | pbrook | addr += TARGET_PAGE_SIZE) { |
1139 | 53a5960a | pbrook | |
1140 | 53a5960a | pbrook | p2 = page_find (addr >> TARGET_PAGE_BITS); |
1141 | 53a5960a | pbrook | if (!p2)
|
1142 | 53a5960a | pbrook | continue;
|
1143 | 53a5960a | pbrook | prot |= p2->flags; |
1144 | 53a5960a | pbrook | p2->flags &= ~PAGE_WRITE; |
1145 | 53a5960a | pbrook | page_get_flags(addr); |
1146 | 53a5960a | pbrook | } |
1147 | 5fafdf24 | ths | mprotect(g2h(page_addr), qemu_host_page_size, |
1148 | fd6ce8f6 | bellard | (prot & PAGE_BITS) & ~PAGE_WRITE); |
1149 | fd6ce8f6 | bellard | #ifdef DEBUG_TB_INVALIDATE
|
1150 | ab3d1727 | blueswir1 | printf("protecting code page: 0x" TARGET_FMT_lx "\n", |
1151 | 53a5960a | pbrook | page_addr); |
1152 | fd6ce8f6 | bellard | #endif
|
1153 | fd6ce8f6 | bellard | } |
1154 | 9fa3e853 | bellard | #else
|
1155 | 9fa3e853 | bellard | /* if some code is already present, then the pages are already
|
1156 | 9fa3e853 | bellard | protected. So we handle the case where only the first TB is
|
1157 | 9fa3e853 | bellard | allocated in a physical page */
|
1158 | 9fa3e853 | bellard | if (!last_first_tb) {
|
1159 | 6a00d601 | bellard | tlb_protect_code(page_addr); |
1160 | 9fa3e853 | bellard | } |
1161 | 9fa3e853 | bellard | #endif
|
1162 | d720b93d | bellard | |
1163 | d720b93d | bellard | #endif /* TARGET_HAS_SMC */ |
1164 | fd6ce8f6 | bellard | } |
1165 | fd6ce8f6 | bellard | |
1166 | fd6ce8f6 | bellard | /* Allocate a new translation block. Flush the translation buffer if
|
1167 | fd6ce8f6 | bellard | too many translation blocks or too much generated code. */
|
1168 | c27004ec | bellard | TranslationBlock *tb_alloc(target_ulong pc) |
1169 | fd6ce8f6 | bellard | { |
1170 | fd6ce8f6 | bellard | TranslationBlock *tb; |
1171 | fd6ce8f6 | bellard | |
1172 | 26a5f13b | bellard | if (nb_tbs >= code_gen_max_blocks ||
|
1173 | 26a5f13b | bellard | (code_gen_ptr - code_gen_buffer) >= code_gen_buffer_max_size) |
1174 | d4e8164f | bellard | return NULL; |
1175 | fd6ce8f6 | bellard | tb = &tbs[nb_tbs++]; |
1176 | fd6ce8f6 | bellard | tb->pc = pc; |
1177 | b448f2f3 | bellard | tb->cflags = 0;
|
1178 | d4e8164f | bellard | return tb;
|
1179 | d4e8164f | bellard | } |
1180 | d4e8164f | bellard | |
1181 | 2e70f6ef | pbrook | void tb_free(TranslationBlock *tb)
|
1182 | 2e70f6ef | pbrook | { |
1183 | bf20dc07 | ths | /* In practice this is mostly used for single use temporary TB
|
1184 | 2e70f6ef | pbrook | Ignore the hard cases and just back up if this TB happens to
|
1185 | 2e70f6ef | pbrook | be the last one generated. */
|
1186 | 2e70f6ef | pbrook | if (nb_tbs > 0 && tb == &tbs[nb_tbs - 1]) { |
1187 | 2e70f6ef | pbrook | code_gen_ptr = tb->tc_ptr; |
1188 | 2e70f6ef | pbrook | nb_tbs--; |
1189 | 2e70f6ef | pbrook | } |
1190 | 2e70f6ef | pbrook | } |
1191 | 2e70f6ef | pbrook | |
1192 | 9fa3e853 | bellard | /* add a new TB and link it to the physical page tables. phys_page2 is
|
1193 | 9fa3e853 | bellard | (-1) to indicate that only one page contains the TB. */
|
1194 | 5fafdf24 | ths | void tb_link_phys(TranslationBlock *tb,
|
1195 | 9fa3e853 | bellard | target_ulong phys_pc, target_ulong phys_page2) |
1196 | d4e8164f | bellard | { |
1197 | 9fa3e853 | bellard | unsigned int h; |
1198 | 9fa3e853 | bellard | TranslationBlock **ptb; |
1199 | 9fa3e853 | bellard | |
1200 | c8a706fe | pbrook | /* Grab the mmap lock to stop another thread invalidating this TB
|
1201 | c8a706fe | pbrook | before we are done. */
|
1202 | c8a706fe | pbrook | mmap_lock(); |
1203 | 9fa3e853 | bellard | /* add in the physical hash table */
|
1204 | 9fa3e853 | bellard | h = tb_phys_hash_func(phys_pc); |
1205 | 9fa3e853 | bellard | ptb = &tb_phys_hash[h]; |
1206 | 9fa3e853 | bellard | tb->phys_hash_next = *ptb; |
1207 | 9fa3e853 | bellard | *ptb = tb; |
1208 | fd6ce8f6 | bellard | |
1209 | fd6ce8f6 | bellard | /* add in the page list */
|
1210 | 9fa3e853 | bellard | tb_alloc_page(tb, 0, phys_pc & TARGET_PAGE_MASK);
|
1211 | 9fa3e853 | bellard | if (phys_page2 != -1) |
1212 | 9fa3e853 | bellard | tb_alloc_page(tb, 1, phys_page2);
|
1213 | 9fa3e853 | bellard | else
|
1214 | 9fa3e853 | bellard | tb->page_addr[1] = -1; |
1215 | 9fa3e853 | bellard | |
1216 | d4e8164f | bellard | tb->jmp_first = (TranslationBlock *)((long)tb | 2); |
1217 | d4e8164f | bellard | tb->jmp_next[0] = NULL; |
1218 | d4e8164f | bellard | tb->jmp_next[1] = NULL; |
1219 | d4e8164f | bellard | |
1220 | d4e8164f | bellard | /* init original jump addresses */
|
1221 | d4e8164f | bellard | if (tb->tb_next_offset[0] != 0xffff) |
1222 | d4e8164f | bellard | tb_reset_jump(tb, 0);
|
1223 | d4e8164f | bellard | if (tb->tb_next_offset[1] != 0xffff) |
1224 | d4e8164f | bellard | tb_reset_jump(tb, 1);
|
1225 | 8a40a180 | bellard | |
1226 | 8a40a180 | bellard | #ifdef DEBUG_TB_CHECK
|
1227 | 8a40a180 | bellard | tb_page_check(); |
1228 | 8a40a180 | bellard | #endif
|
1229 | c8a706fe | pbrook | mmap_unlock(); |
1230 | fd6ce8f6 | bellard | } |
1231 | fd6ce8f6 | bellard | |
1232 | 9fa3e853 | bellard | /* find the TB 'tb' such that tb[0].tc_ptr <= tc_ptr <
|
1233 | 9fa3e853 | bellard | tb[1].tc_ptr. Return NULL if not found */
|
1234 | 9fa3e853 | bellard | TranslationBlock *tb_find_pc(unsigned long tc_ptr) |
1235 | fd6ce8f6 | bellard | { |
1236 | 9fa3e853 | bellard | int m_min, m_max, m;
|
1237 | 9fa3e853 | bellard | unsigned long v; |
1238 | 9fa3e853 | bellard | TranslationBlock *tb; |
1239 | a513fe19 | bellard | |
1240 | a513fe19 | bellard | if (nb_tbs <= 0) |
1241 | a513fe19 | bellard | return NULL; |
1242 | a513fe19 | bellard | if (tc_ptr < (unsigned long)code_gen_buffer || |
1243 | a513fe19 | bellard | tc_ptr >= (unsigned long)code_gen_ptr) |
1244 | a513fe19 | bellard | return NULL; |
1245 | a513fe19 | bellard | /* binary search (cf Knuth) */
|
1246 | a513fe19 | bellard | m_min = 0;
|
1247 | a513fe19 | bellard | m_max = nb_tbs - 1;
|
1248 | a513fe19 | bellard | while (m_min <= m_max) {
|
1249 | a513fe19 | bellard | m = (m_min + m_max) >> 1;
|
1250 | a513fe19 | bellard | tb = &tbs[m]; |
1251 | a513fe19 | bellard | v = (unsigned long)tb->tc_ptr; |
1252 | a513fe19 | bellard | if (v == tc_ptr)
|
1253 | a513fe19 | bellard | return tb;
|
1254 | a513fe19 | bellard | else if (tc_ptr < v) { |
1255 | a513fe19 | bellard | m_max = m - 1;
|
1256 | a513fe19 | bellard | } else {
|
1257 | a513fe19 | bellard | m_min = m + 1;
|
1258 | a513fe19 | bellard | } |
1259 | 5fafdf24 | ths | } |
1260 | a513fe19 | bellard | return &tbs[m_max];
|
1261 | a513fe19 | bellard | } |
1262 | 7501267e | bellard | |
1263 | ea041c0e | bellard | static void tb_reset_jump_recursive(TranslationBlock *tb); |
1264 | ea041c0e | bellard | |
1265 | ea041c0e | bellard | static inline void tb_reset_jump_recursive2(TranslationBlock *tb, int n) |
1266 | ea041c0e | bellard | { |
1267 | ea041c0e | bellard | TranslationBlock *tb1, *tb_next, **ptb; |
1268 | ea041c0e | bellard | unsigned int n1; |
1269 | ea041c0e | bellard | |
1270 | ea041c0e | bellard | tb1 = tb->jmp_next[n]; |
1271 | ea041c0e | bellard | if (tb1 != NULL) { |
1272 | ea041c0e | bellard | /* find head of list */
|
1273 | ea041c0e | bellard | for(;;) {
|
1274 | ea041c0e | bellard | n1 = (long)tb1 & 3; |
1275 | ea041c0e | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
1276 | ea041c0e | bellard | if (n1 == 2) |
1277 | ea041c0e | bellard | break;
|
1278 | ea041c0e | bellard | tb1 = tb1->jmp_next[n1]; |
1279 | ea041c0e | bellard | } |
1280 | ea041c0e | bellard | /* we are now sure now that tb jumps to tb1 */
|
1281 | ea041c0e | bellard | tb_next = tb1; |
1282 | ea041c0e | bellard | |
1283 | ea041c0e | bellard | /* remove tb from the jmp_first list */
|
1284 | ea041c0e | bellard | ptb = &tb_next->jmp_first; |
1285 | ea041c0e | bellard | for(;;) {
|
1286 | ea041c0e | bellard | tb1 = *ptb; |
1287 | ea041c0e | bellard | n1 = (long)tb1 & 3; |
1288 | ea041c0e | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
1289 | ea041c0e | bellard | if (n1 == n && tb1 == tb)
|
1290 | ea041c0e | bellard | break;
|
1291 | ea041c0e | bellard | ptb = &tb1->jmp_next[n1]; |
1292 | ea041c0e | bellard | } |
1293 | ea041c0e | bellard | *ptb = tb->jmp_next[n]; |
1294 | ea041c0e | bellard | tb->jmp_next[n] = NULL;
|
1295 | 3b46e624 | ths | |
1296 | ea041c0e | bellard | /* suppress the jump to next tb in generated code */
|
1297 | ea041c0e | bellard | tb_reset_jump(tb, n); |
1298 | ea041c0e | bellard | |
1299 | 0124311e | bellard | /* suppress jumps in the tb on which we could have jumped */
|
1300 | ea041c0e | bellard | tb_reset_jump_recursive(tb_next); |
1301 | ea041c0e | bellard | } |
1302 | ea041c0e | bellard | } |
1303 | ea041c0e | bellard | |
1304 | ea041c0e | bellard | static void tb_reset_jump_recursive(TranslationBlock *tb) |
1305 | ea041c0e | bellard | { |
1306 | ea041c0e | bellard | tb_reset_jump_recursive2(tb, 0);
|
1307 | ea041c0e | bellard | tb_reset_jump_recursive2(tb, 1);
|
1308 | ea041c0e | bellard | } |
1309 | ea041c0e | bellard | |
1310 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1311 | d720b93d | bellard | static void breakpoint_invalidate(CPUState *env, target_ulong pc) |
1312 | d720b93d | bellard | { |
1313 | c227f099 | Anthony Liguori | target_phys_addr_t addr; |
1314 | 9b3c35e0 | j_mayer | target_ulong pd; |
1315 | c227f099 | Anthony Liguori | ram_addr_t ram_addr; |
1316 | c2f07f81 | pbrook | PhysPageDesc *p; |
1317 | d720b93d | bellard | |
1318 | c2f07f81 | pbrook | addr = cpu_get_phys_page_debug(env, pc); |
1319 | c2f07f81 | pbrook | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
1320 | c2f07f81 | pbrook | if (!p) {
|
1321 | c2f07f81 | pbrook | pd = IO_MEM_UNASSIGNED; |
1322 | c2f07f81 | pbrook | } else {
|
1323 | c2f07f81 | pbrook | pd = p->phys_offset; |
1324 | c2f07f81 | pbrook | } |
1325 | c2f07f81 | pbrook | ram_addr = (pd & TARGET_PAGE_MASK) | (pc & ~TARGET_PAGE_MASK); |
1326 | 706cd4b5 | pbrook | tb_invalidate_phys_page_range(ram_addr, ram_addr + 1, 0); |
1327 | d720b93d | bellard | } |
1328 | c27004ec | bellard | #endif
|
1329 | d720b93d | bellard | |
1330 | 6658ffb8 | pbrook | /* Add a watchpoint. */
|
1331 | a1d1bb31 | aliguori | int cpu_watchpoint_insert(CPUState *env, target_ulong addr, target_ulong len,
|
1332 | a1d1bb31 | aliguori | int flags, CPUWatchpoint **watchpoint)
|
1333 | 6658ffb8 | pbrook | { |
1334 | b4051334 | aliguori | target_ulong len_mask = ~(len - 1);
|
1335 | c0ce998e | aliguori | CPUWatchpoint *wp; |
1336 | 6658ffb8 | pbrook | |
1337 | b4051334 | aliguori | /* sanity checks: allow power-of-2 lengths, deny unaligned watchpoints */
|
1338 | b4051334 | aliguori | if ((len != 1 && len != 2 && len != 4 && len != 8) || (addr & ~len_mask)) { |
1339 | b4051334 | aliguori | fprintf(stderr, "qemu: tried to set invalid watchpoint at "
|
1340 | b4051334 | aliguori | TARGET_FMT_lx ", len=" TARGET_FMT_lu "\n", addr, len); |
1341 | b4051334 | aliguori | return -EINVAL;
|
1342 | b4051334 | aliguori | } |
1343 | a1d1bb31 | aliguori | wp = qemu_malloc(sizeof(*wp));
|
1344 | a1d1bb31 | aliguori | |
1345 | a1d1bb31 | aliguori | wp->vaddr = addr; |
1346 | b4051334 | aliguori | wp->len_mask = len_mask; |
1347 | a1d1bb31 | aliguori | wp->flags = flags; |
1348 | a1d1bb31 | aliguori | |
1349 | 2dc9f411 | aliguori | /* keep all GDB-injected watchpoints in front */
|
1350 | c0ce998e | aliguori | if (flags & BP_GDB)
|
1351 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_HEAD(&env->watchpoints, wp, entry); |
1352 | c0ce998e | aliguori | else
|
1353 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&env->watchpoints, wp, entry); |
1354 | 6658ffb8 | pbrook | |
1355 | 6658ffb8 | pbrook | tlb_flush_page(env, addr); |
1356 | a1d1bb31 | aliguori | |
1357 | a1d1bb31 | aliguori | if (watchpoint)
|
1358 | a1d1bb31 | aliguori | *watchpoint = wp; |
1359 | a1d1bb31 | aliguori | return 0; |
1360 | 6658ffb8 | pbrook | } |
1361 | 6658ffb8 | pbrook | |
1362 | a1d1bb31 | aliguori | /* Remove a specific watchpoint. */
|
1363 | a1d1bb31 | aliguori | int cpu_watchpoint_remove(CPUState *env, target_ulong addr, target_ulong len,
|
1364 | a1d1bb31 | aliguori | int flags)
|
1365 | 6658ffb8 | pbrook | { |
1366 | b4051334 | aliguori | target_ulong len_mask = ~(len - 1);
|
1367 | a1d1bb31 | aliguori | CPUWatchpoint *wp; |
1368 | 6658ffb8 | pbrook | |
1369 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
1370 | b4051334 | aliguori | if (addr == wp->vaddr && len_mask == wp->len_mask
|
1371 | 6e140f28 | aliguori | && flags == (wp->flags & ~BP_WATCHPOINT_HIT)) { |
1372 | a1d1bb31 | aliguori | cpu_watchpoint_remove_by_ref(env, wp); |
1373 | 6658ffb8 | pbrook | return 0; |
1374 | 6658ffb8 | pbrook | } |
1375 | 6658ffb8 | pbrook | } |
1376 | a1d1bb31 | aliguori | return -ENOENT;
|
1377 | 6658ffb8 | pbrook | } |
1378 | 6658ffb8 | pbrook | |
1379 | a1d1bb31 | aliguori | /* Remove a specific watchpoint by reference. */
|
1380 | a1d1bb31 | aliguori | void cpu_watchpoint_remove_by_ref(CPUState *env, CPUWatchpoint *watchpoint)
|
1381 | a1d1bb31 | aliguori | { |
1382 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&env->watchpoints, watchpoint, entry); |
1383 | 7d03f82f | edgar_igl | |
1384 | a1d1bb31 | aliguori | tlb_flush_page(env, watchpoint->vaddr); |
1385 | a1d1bb31 | aliguori | |
1386 | a1d1bb31 | aliguori | qemu_free(watchpoint); |
1387 | a1d1bb31 | aliguori | } |
1388 | a1d1bb31 | aliguori | |
1389 | a1d1bb31 | aliguori | /* Remove all matching watchpoints. */
|
1390 | a1d1bb31 | aliguori | void cpu_watchpoint_remove_all(CPUState *env, int mask) |
1391 | a1d1bb31 | aliguori | { |
1392 | c0ce998e | aliguori | CPUWatchpoint *wp, *next; |
1393 | a1d1bb31 | aliguori | |
1394 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH_SAFE(wp, &env->watchpoints, entry, next) { |
1395 | a1d1bb31 | aliguori | if (wp->flags & mask)
|
1396 | a1d1bb31 | aliguori | cpu_watchpoint_remove_by_ref(env, wp); |
1397 | c0ce998e | aliguori | } |
1398 | 7d03f82f | edgar_igl | } |
1399 | 7d03f82f | edgar_igl | |
1400 | a1d1bb31 | aliguori | /* Add a breakpoint. */
|
1401 | a1d1bb31 | aliguori | int cpu_breakpoint_insert(CPUState *env, target_ulong pc, int flags, |
1402 | a1d1bb31 | aliguori | CPUBreakpoint **breakpoint) |
1403 | 4c3a88a2 | bellard | { |
1404 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1405 | c0ce998e | aliguori | CPUBreakpoint *bp; |
1406 | 3b46e624 | ths | |
1407 | a1d1bb31 | aliguori | bp = qemu_malloc(sizeof(*bp));
|
1408 | 4c3a88a2 | bellard | |
1409 | a1d1bb31 | aliguori | bp->pc = pc; |
1410 | a1d1bb31 | aliguori | bp->flags = flags; |
1411 | a1d1bb31 | aliguori | |
1412 | 2dc9f411 | aliguori | /* keep all GDB-injected breakpoints in front */
|
1413 | c0ce998e | aliguori | if (flags & BP_GDB)
|
1414 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_HEAD(&env->breakpoints, bp, entry); |
1415 | c0ce998e | aliguori | else
|
1416 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&env->breakpoints, bp, entry); |
1417 | 3b46e624 | ths | |
1418 | d720b93d | bellard | breakpoint_invalidate(env, pc); |
1419 | a1d1bb31 | aliguori | |
1420 | a1d1bb31 | aliguori | if (breakpoint)
|
1421 | a1d1bb31 | aliguori | *breakpoint = bp; |
1422 | 4c3a88a2 | bellard | return 0; |
1423 | 4c3a88a2 | bellard | #else
|
1424 | a1d1bb31 | aliguori | return -ENOSYS;
|
1425 | 4c3a88a2 | bellard | #endif
|
1426 | 4c3a88a2 | bellard | } |
1427 | 4c3a88a2 | bellard | |
1428 | a1d1bb31 | aliguori | /* Remove a specific breakpoint. */
|
1429 | a1d1bb31 | aliguori | int cpu_breakpoint_remove(CPUState *env, target_ulong pc, int flags) |
1430 | a1d1bb31 | aliguori | { |
1431 | 7d03f82f | edgar_igl | #if defined(TARGET_HAS_ICE)
|
1432 | a1d1bb31 | aliguori | CPUBreakpoint *bp; |
1433 | a1d1bb31 | aliguori | |
1434 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
1435 | a1d1bb31 | aliguori | if (bp->pc == pc && bp->flags == flags) {
|
1436 | a1d1bb31 | aliguori | cpu_breakpoint_remove_by_ref(env, bp); |
1437 | a1d1bb31 | aliguori | return 0; |
1438 | a1d1bb31 | aliguori | } |
1439 | 7d03f82f | edgar_igl | } |
1440 | a1d1bb31 | aliguori | return -ENOENT;
|
1441 | a1d1bb31 | aliguori | #else
|
1442 | a1d1bb31 | aliguori | return -ENOSYS;
|
1443 | 7d03f82f | edgar_igl | #endif
|
1444 | 7d03f82f | edgar_igl | } |
1445 | 7d03f82f | edgar_igl | |
1446 | a1d1bb31 | aliguori | /* Remove a specific breakpoint by reference. */
|
1447 | a1d1bb31 | aliguori | void cpu_breakpoint_remove_by_ref(CPUState *env, CPUBreakpoint *breakpoint)
|
1448 | 4c3a88a2 | bellard | { |
1449 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1450 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&env->breakpoints, breakpoint, entry); |
1451 | d720b93d | bellard | |
1452 | a1d1bb31 | aliguori | breakpoint_invalidate(env, breakpoint->pc); |
1453 | a1d1bb31 | aliguori | |
1454 | a1d1bb31 | aliguori | qemu_free(breakpoint); |
1455 | a1d1bb31 | aliguori | #endif
|
1456 | a1d1bb31 | aliguori | } |
1457 | a1d1bb31 | aliguori | |
1458 | a1d1bb31 | aliguori | /* Remove all matching breakpoints. */
|
1459 | a1d1bb31 | aliguori | void cpu_breakpoint_remove_all(CPUState *env, int mask) |
1460 | a1d1bb31 | aliguori | { |
1461 | a1d1bb31 | aliguori | #if defined(TARGET_HAS_ICE)
|
1462 | c0ce998e | aliguori | CPUBreakpoint *bp, *next; |
1463 | a1d1bb31 | aliguori | |
1464 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH_SAFE(bp, &env->breakpoints, entry, next) { |
1465 | a1d1bb31 | aliguori | if (bp->flags & mask)
|
1466 | a1d1bb31 | aliguori | cpu_breakpoint_remove_by_ref(env, bp); |
1467 | c0ce998e | aliguori | } |
1468 | 4c3a88a2 | bellard | #endif
|
1469 | 4c3a88a2 | bellard | } |
1470 | 4c3a88a2 | bellard | |
1471 | c33a346e | bellard | /* enable or disable single step mode. EXCP_DEBUG is returned by the
|
1472 | c33a346e | bellard | CPU loop after each instruction */
|
1473 | c33a346e | bellard | void cpu_single_step(CPUState *env, int enabled) |
1474 | c33a346e | bellard | { |
1475 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1476 | c33a346e | bellard | if (env->singlestep_enabled != enabled) {
|
1477 | c33a346e | bellard | env->singlestep_enabled = enabled; |
1478 | e22a25c9 | aliguori | if (kvm_enabled())
|
1479 | e22a25c9 | aliguori | kvm_update_guest_debug(env, 0);
|
1480 | e22a25c9 | aliguori | else {
|
1481 | ccbb4d44 | Stuart Brady | /* must flush all the translated code to avoid inconsistencies */
|
1482 | e22a25c9 | aliguori | /* XXX: only flush what is necessary */
|
1483 | e22a25c9 | aliguori | tb_flush(env); |
1484 | e22a25c9 | aliguori | } |
1485 | c33a346e | bellard | } |
1486 | c33a346e | bellard | #endif
|
1487 | c33a346e | bellard | } |
1488 | c33a346e | bellard | |
1489 | 34865134 | bellard | /* enable or disable low levels log */
|
1490 | 34865134 | bellard | void cpu_set_log(int log_flags) |
1491 | 34865134 | bellard | { |
1492 | 34865134 | bellard | loglevel = log_flags; |
1493 | 34865134 | bellard | if (loglevel && !logfile) {
|
1494 | 11fcfab4 | pbrook | logfile = fopen(logfilename, log_append ? "a" : "w"); |
1495 | 34865134 | bellard | if (!logfile) {
|
1496 | 34865134 | bellard | perror(logfilename); |
1497 | 34865134 | bellard | _exit(1);
|
1498 | 34865134 | bellard | } |
1499 | 9fa3e853 | bellard | #if !defined(CONFIG_SOFTMMU)
|
1500 | 9fa3e853 | bellard | /* must avoid mmap() usage of glibc by setting a buffer "by hand" */
|
1501 | 9fa3e853 | bellard | { |
1502 | b55266b5 | blueswir1 | static char logfile_buf[4096]; |
1503 | 9fa3e853 | bellard | setvbuf(logfile, logfile_buf, _IOLBF, sizeof(logfile_buf));
|
1504 | 9fa3e853 | bellard | } |
1505 | bf65f53f | Filip Navara | #elif !defined(_WIN32)
|
1506 | bf65f53f | Filip Navara | /* Win32 doesn't support line-buffering and requires size >= 2 */
|
1507 | 34865134 | bellard | setvbuf(logfile, NULL, _IOLBF, 0); |
1508 | 9fa3e853 | bellard | #endif
|
1509 | e735b91c | pbrook | log_append = 1;
|
1510 | e735b91c | pbrook | } |
1511 | e735b91c | pbrook | if (!loglevel && logfile) {
|
1512 | e735b91c | pbrook | fclose(logfile); |
1513 | e735b91c | pbrook | logfile = NULL;
|
1514 | 34865134 | bellard | } |
1515 | 34865134 | bellard | } |
1516 | 34865134 | bellard | |
1517 | 34865134 | bellard | void cpu_set_log_filename(const char *filename) |
1518 | 34865134 | bellard | { |
1519 | 34865134 | bellard | logfilename = strdup(filename); |
1520 | e735b91c | pbrook | if (logfile) {
|
1521 | e735b91c | pbrook | fclose(logfile); |
1522 | e735b91c | pbrook | logfile = NULL;
|
1523 | e735b91c | pbrook | } |
1524 | e735b91c | pbrook | cpu_set_log(loglevel); |
1525 | 34865134 | bellard | } |
1526 | c33a346e | bellard | |
1527 | 3098dba0 | aurel32 | static void cpu_unlink_tb(CPUState *env) |
1528 | ea041c0e | bellard | { |
1529 | 2f7bb878 | Juan Quintela | #if defined(CONFIG_USE_NPTL)
|
1530 | 3098dba0 | aurel32 | /* FIXME: TB unchaining isn't SMP safe. For now just ignore the
|
1531 | 3098dba0 | aurel32 | problem and hope the cpu will stop of its own accord. For userspace
|
1532 | 3098dba0 | aurel32 | emulation this often isn't actually as bad as it sounds. Often
|
1533 | 3098dba0 | aurel32 | signals are used primarily to interrupt blocking syscalls. */
|
1534 | 3098dba0 | aurel32 | #else
|
1535 | ea041c0e | bellard | TranslationBlock *tb; |
1536 | c227f099 | Anthony Liguori | static spinlock_t interrupt_lock = SPIN_LOCK_UNLOCKED;
|
1537 | 59817ccb | bellard | |
1538 | 3098dba0 | aurel32 | tb = env->current_tb; |
1539 | 3098dba0 | aurel32 | /* if the cpu is currently executing code, we must unlink it and
|
1540 | 3098dba0 | aurel32 | all the potentially executing TB */
|
1541 | 3098dba0 | aurel32 | if (tb && !testandset(&interrupt_lock)) {
|
1542 | 3098dba0 | aurel32 | env->current_tb = NULL;
|
1543 | 3098dba0 | aurel32 | tb_reset_jump_recursive(tb); |
1544 | 3098dba0 | aurel32 | resetlock(&interrupt_lock); |
1545 | be214e6c | aurel32 | } |
1546 | 3098dba0 | aurel32 | #endif
|
1547 | 3098dba0 | aurel32 | } |
1548 | 3098dba0 | aurel32 | |
1549 | 3098dba0 | aurel32 | /* mask must never be zero, except for A20 change call */
|
1550 | 3098dba0 | aurel32 | void cpu_interrupt(CPUState *env, int mask) |
1551 | 3098dba0 | aurel32 | { |
1552 | 3098dba0 | aurel32 | int old_mask;
|
1553 | be214e6c | aurel32 | |
1554 | 2e70f6ef | pbrook | old_mask = env->interrupt_request; |
1555 | 68a79315 | bellard | env->interrupt_request |= mask; |
1556 | 3098dba0 | aurel32 | |
1557 | 8edac960 | aliguori | #ifndef CONFIG_USER_ONLY
|
1558 | 8edac960 | aliguori | /*
|
1559 | 8edac960 | aliguori | * If called from iothread context, wake the target cpu in
|
1560 | 8edac960 | aliguori | * case its halted.
|
1561 | 8edac960 | aliguori | */
|
1562 | 8edac960 | aliguori | if (!qemu_cpu_self(env)) {
|
1563 | 8edac960 | aliguori | qemu_cpu_kick(env); |
1564 | 8edac960 | aliguori | return;
|
1565 | 8edac960 | aliguori | } |
1566 | 8edac960 | aliguori | #endif
|
1567 | 8edac960 | aliguori | |
1568 | 2e70f6ef | pbrook | if (use_icount) {
|
1569 | 266910c4 | pbrook | env->icount_decr.u16.high = 0xffff;
|
1570 | 2e70f6ef | pbrook | #ifndef CONFIG_USER_ONLY
|
1571 | 2e70f6ef | pbrook | if (!can_do_io(env)
|
1572 | be214e6c | aurel32 | && (mask & ~old_mask) != 0) {
|
1573 | 2e70f6ef | pbrook | cpu_abort(env, "Raised interrupt while not in I/O function");
|
1574 | 2e70f6ef | pbrook | } |
1575 | 2e70f6ef | pbrook | #endif
|
1576 | 2e70f6ef | pbrook | } else {
|
1577 | 3098dba0 | aurel32 | cpu_unlink_tb(env); |
1578 | ea041c0e | bellard | } |
1579 | ea041c0e | bellard | } |
1580 | ea041c0e | bellard | |
1581 | b54ad049 | bellard | void cpu_reset_interrupt(CPUState *env, int mask) |
1582 | b54ad049 | bellard | { |
1583 | b54ad049 | bellard | env->interrupt_request &= ~mask; |
1584 | b54ad049 | bellard | } |
1585 | b54ad049 | bellard | |
1586 | 3098dba0 | aurel32 | void cpu_exit(CPUState *env)
|
1587 | 3098dba0 | aurel32 | { |
1588 | 3098dba0 | aurel32 | env->exit_request = 1;
|
1589 | 3098dba0 | aurel32 | cpu_unlink_tb(env); |
1590 | 3098dba0 | aurel32 | } |
1591 | 3098dba0 | aurel32 | |
1592 | c7cd6a37 | blueswir1 | const CPULogItem cpu_log_items[] = {
|
1593 | 5fafdf24 | ths | { CPU_LOG_TB_OUT_ASM, "out_asm",
|
1594 | f193c797 | bellard | "show generated host assembly code for each compiled TB" },
|
1595 | f193c797 | bellard | { CPU_LOG_TB_IN_ASM, "in_asm",
|
1596 | f193c797 | bellard | "show target assembly code for each compiled TB" },
|
1597 | 5fafdf24 | ths | { CPU_LOG_TB_OP, "op",
|
1598 | 57fec1fe | bellard | "show micro ops for each compiled TB" },
|
1599 | f193c797 | bellard | { CPU_LOG_TB_OP_OPT, "op_opt",
|
1600 | e01a1157 | blueswir1 | "show micro ops "
|
1601 | e01a1157 | blueswir1 | #ifdef TARGET_I386
|
1602 | e01a1157 | blueswir1 | "before eflags optimization and "
|
1603 | f193c797 | bellard | #endif
|
1604 | e01a1157 | blueswir1 | "after liveness analysis" },
|
1605 | f193c797 | bellard | { CPU_LOG_INT, "int",
|
1606 | f193c797 | bellard | "show interrupts/exceptions in short format" },
|
1607 | f193c797 | bellard | { CPU_LOG_EXEC, "exec",
|
1608 | f193c797 | bellard | "show trace before each executed TB (lots of logs)" },
|
1609 | 9fddaa0c | bellard | { CPU_LOG_TB_CPU, "cpu",
|
1610 | e91c8a77 | ths | "show CPU state before block translation" },
|
1611 | f193c797 | bellard | #ifdef TARGET_I386
|
1612 | f193c797 | bellard | { CPU_LOG_PCALL, "pcall",
|
1613 | f193c797 | bellard | "show protected mode far calls/returns/exceptions" },
|
1614 | eca1bdf4 | aliguori | { CPU_LOG_RESET, "cpu_reset",
|
1615 | eca1bdf4 | aliguori | "show CPU state before CPU resets" },
|
1616 | f193c797 | bellard | #endif
|
1617 | 8e3a9fd2 | bellard | #ifdef DEBUG_IOPORT
|
1618 | fd872598 | bellard | { CPU_LOG_IOPORT, "ioport",
|
1619 | fd872598 | bellard | "show all i/o ports accesses" },
|
1620 | 8e3a9fd2 | bellard | #endif
|
1621 | f193c797 | bellard | { 0, NULL, NULL }, |
1622 | f193c797 | bellard | }; |
1623 | f193c797 | bellard | |
1624 | f193c797 | bellard | static int cmp1(const char *s1, int n, const char *s2) |
1625 | f193c797 | bellard | { |
1626 | f193c797 | bellard | if (strlen(s2) != n)
|
1627 | f193c797 | bellard | return 0; |
1628 | f193c797 | bellard | return memcmp(s1, s2, n) == 0; |
1629 | f193c797 | bellard | } |
1630 | 3b46e624 | ths | |
1631 | f193c797 | bellard | /* takes a comma separated list of log masks. Return 0 if error. */
|
1632 | f193c797 | bellard | int cpu_str_to_log_mask(const char *str) |
1633 | f193c797 | bellard | { |
1634 | c7cd6a37 | blueswir1 | const CPULogItem *item;
|
1635 | f193c797 | bellard | int mask;
|
1636 | f193c797 | bellard | const char *p, *p1; |
1637 | f193c797 | bellard | |
1638 | f193c797 | bellard | p = str; |
1639 | f193c797 | bellard | mask = 0;
|
1640 | f193c797 | bellard | for(;;) {
|
1641 | f193c797 | bellard | p1 = strchr(p, ',');
|
1642 | f193c797 | bellard | if (!p1)
|
1643 | f193c797 | bellard | p1 = p + strlen(p); |
1644 | 8e3a9fd2 | bellard | if(cmp1(p,p1-p,"all")) { |
1645 | 8e3a9fd2 | bellard | for(item = cpu_log_items; item->mask != 0; item++) { |
1646 | 8e3a9fd2 | bellard | mask |= item->mask; |
1647 | 8e3a9fd2 | bellard | } |
1648 | 8e3a9fd2 | bellard | } else {
|
1649 | f193c797 | bellard | for(item = cpu_log_items; item->mask != 0; item++) { |
1650 | f193c797 | bellard | if (cmp1(p, p1 - p, item->name))
|
1651 | f193c797 | bellard | goto found;
|
1652 | f193c797 | bellard | } |
1653 | f193c797 | bellard | return 0; |
1654 | 8e3a9fd2 | bellard | } |
1655 | f193c797 | bellard | found:
|
1656 | f193c797 | bellard | mask |= item->mask; |
1657 | f193c797 | bellard | if (*p1 != ',') |
1658 | f193c797 | bellard | break;
|
1659 | f193c797 | bellard | p = p1 + 1;
|
1660 | f193c797 | bellard | } |
1661 | f193c797 | bellard | return mask;
|
1662 | f193c797 | bellard | } |
1663 | ea041c0e | bellard | |
1664 | 7501267e | bellard | void cpu_abort(CPUState *env, const char *fmt, ...) |
1665 | 7501267e | bellard | { |
1666 | 7501267e | bellard | va_list ap; |
1667 | 493ae1f0 | pbrook | va_list ap2; |
1668 | 7501267e | bellard | |
1669 | 7501267e | bellard | va_start(ap, fmt); |
1670 | 493ae1f0 | pbrook | va_copy(ap2, ap); |
1671 | 7501267e | bellard | fprintf(stderr, "qemu: fatal: ");
|
1672 | 7501267e | bellard | vfprintf(stderr, fmt, ap); |
1673 | 7501267e | bellard | fprintf(stderr, "\n");
|
1674 | 7501267e | bellard | #ifdef TARGET_I386
|
1675 | 7fe48483 | bellard | cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU | X86_DUMP_CCOP); |
1676 | 7fe48483 | bellard | #else
|
1677 | 7fe48483 | bellard | cpu_dump_state(env, stderr, fprintf, 0);
|
1678 | 7501267e | bellard | #endif
|
1679 | 93fcfe39 | aliguori | if (qemu_log_enabled()) {
|
1680 | 93fcfe39 | aliguori | qemu_log("qemu: fatal: ");
|
1681 | 93fcfe39 | aliguori | qemu_log_vprintf(fmt, ap2); |
1682 | 93fcfe39 | aliguori | qemu_log("\n");
|
1683 | f9373291 | j_mayer | #ifdef TARGET_I386
|
1684 | 93fcfe39 | aliguori | log_cpu_state(env, X86_DUMP_FPU | X86_DUMP_CCOP); |
1685 | f9373291 | j_mayer | #else
|
1686 | 93fcfe39 | aliguori | log_cpu_state(env, 0);
|
1687 | f9373291 | j_mayer | #endif
|
1688 | 31b1a7b4 | aliguori | qemu_log_flush(); |
1689 | 93fcfe39 | aliguori | qemu_log_close(); |
1690 | 924edcae | balrog | } |
1691 | 493ae1f0 | pbrook | va_end(ap2); |
1692 | f9373291 | j_mayer | va_end(ap); |
1693 | 7501267e | bellard | abort(); |
1694 | 7501267e | bellard | } |
1695 | 7501267e | bellard | |
1696 | c5be9f08 | ths | CPUState *cpu_copy(CPUState *env) |
1697 | c5be9f08 | ths | { |
1698 | 01ba9816 | ths | CPUState *new_env = cpu_init(env->cpu_model_str); |
1699 | c5be9f08 | ths | CPUState *next_cpu = new_env->next_cpu; |
1700 | c5be9f08 | ths | int cpu_index = new_env->cpu_index;
|
1701 | 5a38f081 | aliguori | #if defined(TARGET_HAS_ICE)
|
1702 | 5a38f081 | aliguori | CPUBreakpoint *bp; |
1703 | 5a38f081 | aliguori | CPUWatchpoint *wp; |
1704 | 5a38f081 | aliguori | #endif
|
1705 | 5a38f081 | aliguori | |
1706 | c5be9f08 | ths | memcpy(new_env, env, sizeof(CPUState));
|
1707 | 5a38f081 | aliguori | |
1708 | 5a38f081 | aliguori | /* Preserve chaining and index. */
|
1709 | c5be9f08 | ths | new_env->next_cpu = next_cpu; |
1710 | c5be9f08 | ths | new_env->cpu_index = cpu_index; |
1711 | 5a38f081 | aliguori | |
1712 | 5a38f081 | aliguori | /* Clone all break/watchpoints.
|
1713 | 5a38f081 | aliguori | Note: Once we support ptrace with hw-debug register access, make sure
|
1714 | 5a38f081 | aliguori | BP_CPU break/watchpoints are handled correctly on clone. */
|
1715 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->breakpoints); |
1716 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->watchpoints); |
1717 | 5a38f081 | aliguori | #if defined(TARGET_HAS_ICE)
|
1718 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
1719 | 5a38f081 | aliguori | cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL);
|
1720 | 5a38f081 | aliguori | } |
1721 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
1722 | 5a38f081 | aliguori | cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1,
|
1723 | 5a38f081 | aliguori | wp->flags, NULL);
|
1724 | 5a38f081 | aliguori | } |
1725 | 5a38f081 | aliguori | #endif
|
1726 | 5a38f081 | aliguori | |
1727 | c5be9f08 | ths | return new_env;
|
1728 | c5be9f08 | ths | } |
1729 | c5be9f08 | ths | |
1730 | 0124311e | bellard | #if !defined(CONFIG_USER_ONLY)
|
1731 | 0124311e | bellard | |
1732 | 5c751e99 | edgar_igl | static inline void tlb_flush_jmp_cache(CPUState *env, target_ulong addr) |
1733 | 5c751e99 | edgar_igl | { |
1734 | 5c751e99 | edgar_igl | unsigned int i; |
1735 | 5c751e99 | edgar_igl | |
1736 | 5c751e99 | edgar_igl | /* Discard jump cache entries for any tb which might potentially
|
1737 | 5c751e99 | edgar_igl | overlap the flushed page. */
|
1738 | 5c751e99 | edgar_igl | i = tb_jmp_cache_hash_page(addr - TARGET_PAGE_SIZE); |
1739 | 5c751e99 | edgar_igl | memset (&env->tb_jmp_cache[i], 0,
|
1740 | 5c751e99 | edgar_igl | TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *));
|
1741 | 5c751e99 | edgar_igl | |
1742 | 5c751e99 | edgar_igl | i = tb_jmp_cache_hash_page(addr); |
1743 | 5c751e99 | edgar_igl | memset (&env->tb_jmp_cache[i], 0,
|
1744 | 5c751e99 | edgar_igl | TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *));
|
1745 | 5c751e99 | edgar_igl | } |
1746 | 5c751e99 | edgar_igl | |
1747 | 08738984 | Igor Kovalenko | static CPUTLBEntry s_cputlb_empty_entry = {
|
1748 | 08738984 | Igor Kovalenko | .addr_read = -1,
|
1749 | 08738984 | Igor Kovalenko | .addr_write = -1,
|
1750 | 08738984 | Igor Kovalenko | .addr_code = -1,
|
1751 | 08738984 | Igor Kovalenko | .addend = -1,
|
1752 | 08738984 | Igor Kovalenko | }; |
1753 | 08738984 | Igor Kovalenko | |
1754 | ee8b7021 | bellard | /* NOTE: if flush_global is true, also flush global entries (not
|
1755 | ee8b7021 | bellard | implemented yet) */
|
1756 | ee8b7021 | bellard | void tlb_flush(CPUState *env, int flush_global) |
1757 | 33417e70 | bellard | { |
1758 | 33417e70 | bellard | int i;
|
1759 | 0124311e | bellard | |
1760 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
1761 | 9fa3e853 | bellard | printf("tlb_flush:\n");
|
1762 | 9fa3e853 | bellard | #endif
|
1763 | 0124311e | bellard | /* must reset current TB so that interrupts cannot modify the
|
1764 | 0124311e | bellard | links while we are modifying them */
|
1765 | 0124311e | bellard | env->current_tb = NULL;
|
1766 | 0124311e | bellard | |
1767 | 33417e70 | bellard | for(i = 0; i < CPU_TLB_SIZE; i++) { |
1768 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
1769 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
1770 | 08738984 | Igor Kovalenko | env->tlb_table[mmu_idx][i] = s_cputlb_empty_entry; |
1771 | cfde4bd9 | Isaku Yamahata | } |
1772 | 33417e70 | bellard | } |
1773 | 9fa3e853 | bellard | |
1774 | 8a40a180 | bellard | memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *)); |
1775 | 9fa3e853 | bellard | |
1776 | e3db7226 | bellard | tlb_flush_count++; |
1777 | 33417e70 | bellard | } |
1778 | 33417e70 | bellard | |
1779 | 274da6b2 | bellard | static inline void tlb_flush_entry(CPUTLBEntry *tlb_entry, target_ulong addr) |
1780 | 61382a50 | bellard | { |
1781 | 5fafdf24 | ths | if (addr == (tlb_entry->addr_read &
|
1782 | 84b7b8e7 | bellard | (TARGET_PAGE_MASK | TLB_INVALID_MASK)) || |
1783 | 5fafdf24 | ths | addr == (tlb_entry->addr_write & |
1784 | 84b7b8e7 | bellard | (TARGET_PAGE_MASK | TLB_INVALID_MASK)) || |
1785 | 5fafdf24 | ths | addr == (tlb_entry->addr_code & |
1786 | 84b7b8e7 | bellard | (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { |
1787 | 08738984 | Igor Kovalenko | *tlb_entry = s_cputlb_empty_entry; |
1788 | 84b7b8e7 | bellard | } |
1789 | 61382a50 | bellard | } |
1790 | 61382a50 | bellard | |
1791 | 2e12669a | bellard | void tlb_flush_page(CPUState *env, target_ulong addr)
|
1792 | 33417e70 | bellard | { |
1793 | 8a40a180 | bellard | int i;
|
1794 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
1795 | 0124311e | bellard | |
1796 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
1797 | 108c49b8 | bellard | printf("tlb_flush_page: " TARGET_FMT_lx "\n", addr); |
1798 | 9fa3e853 | bellard | #endif
|
1799 | 0124311e | bellard | /* must reset current TB so that interrupts cannot modify the
|
1800 | 0124311e | bellard | links while we are modifying them */
|
1801 | 0124311e | bellard | env->current_tb = NULL;
|
1802 | 61382a50 | bellard | |
1803 | 61382a50 | bellard | addr &= TARGET_PAGE_MASK; |
1804 | 61382a50 | bellard | i = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
1805 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) |
1806 | cfde4bd9 | Isaku Yamahata | tlb_flush_entry(&env->tlb_table[mmu_idx][i], addr); |
1807 | 0124311e | bellard | |
1808 | 5c751e99 | edgar_igl | tlb_flush_jmp_cache(env, addr); |
1809 | 9fa3e853 | bellard | } |
1810 | 9fa3e853 | bellard | |
1811 | 9fa3e853 | bellard | /* update the TLBs so that writes to code in the virtual page 'addr'
|
1812 | 9fa3e853 | bellard | can be detected */
|
1813 | c227f099 | Anthony Liguori | static void tlb_protect_code(ram_addr_t ram_addr) |
1814 | 9fa3e853 | bellard | { |
1815 | 5fafdf24 | ths | cpu_physical_memory_reset_dirty(ram_addr, |
1816 | 6a00d601 | bellard | ram_addr + TARGET_PAGE_SIZE, |
1817 | 6a00d601 | bellard | CODE_DIRTY_FLAG); |
1818 | 9fa3e853 | bellard | } |
1819 | 9fa3e853 | bellard | |
1820 | 9fa3e853 | bellard | /* update the TLB so that writes in physical page 'phys_addr' are no longer
|
1821 | 3a7d929e | bellard | tested for self modifying code */
|
1822 | c227f099 | Anthony Liguori | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, |
1823 | 3a7d929e | bellard | target_ulong vaddr) |
1824 | 9fa3e853 | bellard | { |
1825 | 3a7d929e | bellard | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] |= CODE_DIRTY_FLAG; |
1826 | 1ccde1cb | bellard | } |
1827 | 1ccde1cb | bellard | |
1828 | 5fafdf24 | ths | static inline void tlb_reset_dirty_range(CPUTLBEntry *tlb_entry, |
1829 | 1ccde1cb | bellard | unsigned long start, unsigned long length) |
1830 | 1ccde1cb | bellard | { |
1831 | 1ccde1cb | bellard | unsigned long addr; |
1832 | 84b7b8e7 | bellard | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) {
|
1833 | 84b7b8e7 | bellard | addr = (tlb_entry->addr_write & TARGET_PAGE_MASK) + tlb_entry->addend; |
1834 | 1ccde1cb | bellard | if ((addr - start) < length) {
|
1835 | 0f459d16 | pbrook | tlb_entry->addr_write = (tlb_entry->addr_write & TARGET_PAGE_MASK) | TLB_NOTDIRTY; |
1836 | 1ccde1cb | bellard | } |
1837 | 1ccde1cb | bellard | } |
1838 | 1ccde1cb | bellard | } |
1839 | 1ccde1cb | bellard | |
1840 | 5579c7f3 | pbrook | /* Note: start and end must be within the same ram block. */
|
1841 | c227f099 | Anthony Liguori | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,
|
1842 | 0a962c02 | bellard | int dirty_flags)
|
1843 | 1ccde1cb | bellard | { |
1844 | 1ccde1cb | bellard | CPUState *env; |
1845 | 4f2ac237 | bellard | unsigned long length, start1; |
1846 | 0a962c02 | bellard | int i, mask, len;
|
1847 | 0a962c02 | bellard | uint8_t *p; |
1848 | 1ccde1cb | bellard | |
1849 | 1ccde1cb | bellard | start &= TARGET_PAGE_MASK; |
1850 | 1ccde1cb | bellard | end = TARGET_PAGE_ALIGN(end); |
1851 | 1ccde1cb | bellard | |
1852 | 1ccde1cb | bellard | length = end - start; |
1853 | 1ccde1cb | bellard | if (length == 0) |
1854 | 1ccde1cb | bellard | return;
|
1855 | 0a962c02 | bellard | len = length >> TARGET_PAGE_BITS; |
1856 | f23db169 | bellard | mask = ~dirty_flags; |
1857 | f23db169 | bellard | p = phys_ram_dirty + (start >> TARGET_PAGE_BITS); |
1858 | f23db169 | bellard | for(i = 0; i < len; i++) |
1859 | f23db169 | bellard | p[i] &= mask; |
1860 | f23db169 | bellard | |
1861 | 1ccde1cb | bellard | /* we modify the TLB cache so that the dirty bit will be set again
|
1862 | 1ccde1cb | bellard | when accessing the range */
|
1863 | 5579c7f3 | pbrook | start1 = (unsigned long)qemu_get_ram_ptr(start); |
1864 | 5579c7f3 | pbrook | /* Chek that we don't span multiple blocks - this breaks the
|
1865 | 5579c7f3 | pbrook | address comparisons below. */
|
1866 | 5579c7f3 | pbrook | if ((unsigned long)qemu_get_ram_ptr(end - 1) - start1 |
1867 | 5579c7f3 | pbrook | != (end - 1) - start) {
|
1868 | 5579c7f3 | pbrook | abort(); |
1869 | 5579c7f3 | pbrook | } |
1870 | 5579c7f3 | pbrook | |
1871 | 6a00d601 | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
1872 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
1873 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
1874 | cfde4bd9 | Isaku Yamahata | for(i = 0; i < CPU_TLB_SIZE; i++) |
1875 | cfde4bd9 | Isaku Yamahata | tlb_reset_dirty_range(&env->tlb_table[mmu_idx][i], |
1876 | cfde4bd9 | Isaku Yamahata | start1, length); |
1877 | cfde4bd9 | Isaku Yamahata | } |
1878 | 6a00d601 | bellard | } |
1879 | 1ccde1cb | bellard | } |
1880 | 1ccde1cb | bellard | |
1881 | 74576198 | aliguori | int cpu_physical_memory_set_dirty_tracking(int enable) |
1882 | 74576198 | aliguori | { |
1883 | 74576198 | aliguori | in_migration = enable; |
1884 | b0a46a33 | Jan Kiszka | if (kvm_enabled()) {
|
1885 | b0a46a33 | Jan Kiszka | return kvm_set_migration_log(enable);
|
1886 | b0a46a33 | Jan Kiszka | } |
1887 | 74576198 | aliguori | return 0; |
1888 | 74576198 | aliguori | } |
1889 | 74576198 | aliguori | |
1890 | 74576198 | aliguori | int cpu_physical_memory_get_dirty_tracking(void) |
1891 | 74576198 | aliguori | { |
1892 | 74576198 | aliguori | return in_migration;
|
1893 | 74576198 | aliguori | } |
1894 | 74576198 | aliguori | |
1895 | c227f099 | Anthony Liguori | int cpu_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
|
1896 | c227f099 | Anthony Liguori | target_phys_addr_t end_addr) |
1897 | 2bec46dc | aliguori | { |
1898 | 151f7749 | Jan Kiszka | int ret = 0; |
1899 | 151f7749 | Jan Kiszka | |
1900 | 2bec46dc | aliguori | if (kvm_enabled())
|
1901 | 151f7749 | Jan Kiszka | ret = kvm_physical_sync_dirty_bitmap(start_addr, end_addr); |
1902 | 151f7749 | Jan Kiszka | return ret;
|
1903 | 2bec46dc | aliguori | } |
1904 | 2bec46dc | aliguori | |
1905 | 3a7d929e | bellard | static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry) |
1906 | 3a7d929e | bellard | { |
1907 | c227f099 | Anthony Liguori | ram_addr_t ram_addr; |
1908 | 5579c7f3 | pbrook | void *p;
|
1909 | 3a7d929e | bellard | |
1910 | 84b7b8e7 | bellard | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) {
|
1911 | 5579c7f3 | pbrook | p = (void *)(unsigned long)((tlb_entry->addr_write & TARGET_PAGE_MASK) |
1912 | 5579c7f3 | pbrook | + tlb_entry->addend); |
1913 | 5579c7f3 | pbrook | ram_addr = qemu_ram_addr_from_host(p); |
1914 | 3a7d929e | bellard | if (!cpu_physical_memory_is_dirty(ram_addr)) {
|
1915 | 0f459d16 | pbrook | tlb_entry->addr_write |= TLB_NOTDIRTY; |
1916 | 3a7d929e | bellard | } |
1917 | 3a7d929e | bellard | } |
1918 | 3a7d929e | bellard | } |
1919 | 3a7d929e | bellard | |
1920 | 3a7d929e | bellard | /* update the TLB according to the current state of the dirty bits */
|
1921 | 3a7d929e | bellard | void cpu_tlb_update_dirty(CPUState *env)
|
1922 | 3a7d929e | bellard | { |
1923 | 3a7d929e | bellard | int i;
|
1924 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
1925 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
1926 | cfde4bd9 | Isaku Yamahata | for(i = 0; i < CPU_TLB_SIZE; i++) |
1927 | cfde4bd9 | Isaku Yamahata | tlb_update_dirty(&env->tlb_table[mmu_idx][i]); |
1928 | cfde4bd9 | Isaku Yamahata | } |
1929 | 3a7d929e | bellard | } |
1930 | 3a7d929e | bellard | |
1931 | 0f459d16 | pbrook | static inline void tlb_set_dirty1(CPUTLBEntry *tlb_entry, target_ulong vaddr) |
1932 | 1ccde1cb | bellard | { |
1933 | 0f459d16 | pbrook | if (tlb_entry->addr_write == (vaddr | TLB_NOTDIRTY))
|
1934 | 0f459d16 | pbrook | tlb_entry->addr_write = vaddr; |
1935 | 1ccde1cb | bellard | } |
1936 | 1ccde1cb | bellard | |
1937 | 0f459d16 | pbrook | /* update the TLB corresponding to virtual page vaddr
|
1938 | 0f459d16 | pbrook | so that it is no longer dirty */
|
1939 | 0f459d16 | pbrook | static inline void tlb_set_dirty(CPUState *env, target_ulong vaddr) |
1940 | 1ccde1cb | bellard | { |
1941 | 1ccde1cb | bellard | int i;
|
1942 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
1943 | 1ccde1cb | bellard | |
1944 | 0f459d16 | pbrook | vaddr &= TARGET_PAGE_MASK; |
1945 | 1ccde1cb | bellard | i = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
1946 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) |
1947 | cfde4bd9 | Isaku Yamahata | tlb_set_dirty1(&env->tlb_table[mmu_idx][i], vaddr); |
1948 | 9fa3e853 | bellard | } |
1949 | 9fa3e853 | bellard | |
1950 | 59817ccb | bellard | /* add a new TLB entry. At most one entry for a given virtual address
|
1951 | 59817ccb | bellard | is permitted. Return 0 if OK or 2 if the page could not be mapped
|
1952 | 59817ccb | bellard | (can only happen in non SOFTMMU mode for I/O pages or pages
|
1953 | 59817ccb | bellard | conflicting with the host address space). */
|
1954 | 5fafdf24 | ths | int tlb_set_page_exec(CPUState *env, target_ulong vaddr,
|
1955 | c227f099 | Anthony Liguori | target_phys_addr_t paddr, int prot,
|
1956 | 6ebbf390 | j_mayer | int mmu_idx, int is_softmmu) |
1957 | 9fa3e853 | bellard | { |
1958 | 92e873b9 | bellard | PhysPageDesc *p; |
1959 | 4f2ac237 | bellard | unsigned long pd; |
1960 | 9fa3e853 | bellard | unsigned int index; |
1961 | 4f2ac237 | bellard | target_ulong address; |
1962 | 0f459d16 | pbrook | target_ulong code_address; |
1963 | c227f099 | Anthony Liguori | target_phys_addr_t addend; |
1964 | 9fa3e853 | bellard | int ret;
|
1965 | 84b7b8e7 | bellard | CPUTLBEntry *te; |
1966 | a1d1bb31 | aliguori | CPUWatchpoint *wp; |
1967 | c227f099 | Anthony Liguori | target_phys_addr_t iotlb; |
1968 | 9fa3e853 | bellard | |
1969 | 92e873b9 | bellard | p = phys_page_find(paddr >> TARGET_PAGE_BITS); |
1970 | 9fa3e853 | bellard | if (!p) {
|
1971 | 9fa3e853 | bellard | pd = IO_MEM_UNASSIGNED; |
1972 | 9fa3e853 | bellard | } else {
|
1973 | 9fa3e853 | bellard | pd = p->phys_offset; |
1974 | 9fa3e853 | bellard | } |
1975 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
1976 | 6ebbf390 | j_mayer | printf("tlb_set_page: vaddr=" TARGET_FMT_lx " paddr=0x%08x prot=%x idx=%d smmu=%d pd=0x%08lx\n", |
1977 | 6ebbf390 | j_mayer | vaddr, (int)paddr, prot, mmu_idx, is_softmmu, pd);
|
1978 | 9fa3e853 | bellard | #endif
|
1979 | 9fa3e853 | bellard | |
1980 | 9fa3e853 | bellard | ret = 0;
|
1981 | 0f459d16 | pbrook | address = vaddr; |
1982 | 0f459d16 | pbrook | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) {
|
1983 | 0f459d16 | pbrook | /* IO memory case (romd handled later) */
|
1984 | 0f459d16 | pbrook | address |= TLB_MMIO; |
1985 | 0f459d16 | pbrook | } |
1986 | 5579c7f3 | pbrook | addend = (unsigned long)qemu_get_ram_ptr(pd & TARGET_PAGE_MASK); |
1987 | 0f459d16 | pbrook | if ((pd & ~TARGET_PAGE_MASK) <= IO_MEM_ROM) {
|
1988 | 0f459d16 | pbrook | /* Normal RAM. */
|
1989 | 0f459d16 | pbrook | iotlb = pd & TARGET_PAGE_MASK; |
1990 | 0f459d16 | pbrook | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM)
|
1991 | 0f459d16 | pbrook | iotlb |= IO_MEM_NOTDIRTY; |
1992 | 0f459d16 | pbrook | else
|
1993 | 0f459d16 | pbrook | iotlb |= IO_MEM_ROM; |
1994 | 0f459d16 | pbrook | } else {
|
1995 | ccbb4d44 | Stuart Brady | /* IO handlers are currently passed a physical address.
|
1996 | 0f459d16 | pbrook | It would be nice to pass an offset from the base address
|
1997 | 0f459d16 | pbrook | of that region. This would avoid having to special case RAM,
|
1998 | 0f459d16 | pbrook | and avoid full address decoding in every device.
|
1999 | 0f459d16 | pbrook | We can't use the high bits of pd for this because
|
2000 | 0f459d16 | pbrook | IO_MEM_ROMD uses these as a ram address. */
|
2001 | 8da3ff18 | pbrook | iotlb = (pd & ~TARGET_PAGE_MASK); |
2002 | 8da3ff18 | pbrook | if (p) {
|
2003 | 8da3ff18 | pbrook | iotlb += p->region_offset; |
2004 | 8da3ff18 | pbrook | } else {
|
2005 | 8da3ff18 | pbrook | iotlb += paddr; |
2006 | 8da3ff18 | pbrook | } |
2007 | 0f459d16 | pbrook | } |
2008 | 0f459d16 | pbrook | |
2009 | 0f459d16 | pbrook | code_address = address; |
2010 | 0f459d16 | pbrook | /* Make accesses to pages with watchpoints go via the
|
2011 | 0f459d16 | pbrook | watchpoint trap routines. */
|
2012 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
2013 | a1d1bb31 | aliguori | if (vaddr == (wp->vaddr & TARGET_PAGE_MASK)) {
|
2014 | 0f459d16 | pbrook | iotlb = io_mem_watch + paddr; |
2015 | 0f459d16 | pbrook | /* TODO: The memory case can be optimized by not trapping
|
2016 | 0f459d16 | pbrook | reads of pages with a write breakpoint. */
|
2017 | 0f459d16 | pbrook | address |= TLB_MMIO; |
2018 | 6658ffb8 | pbrook | } |
2019 | 0f459d16 | pbrook | } |
2020 | d79acba4 | balrog | |
2021 | 0f459d16 | pbrook | index = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
2022 | 0f459d16 | pbrook | env->iotlb[mmu_idx][index] = iotlb - vaddr; |
2023 | 0f459d16 | pbrook | te = &env->tlb_table[mmu_idx][index]; |
2024 | 0f459d16 | pbrook | te->addend = addend - vaddr; |
2025 | 0f459d16 | pbrook | if (prot & PAGE_READ) {
|
2026 | 0f459d16 | pbrook | te->addr_read = address; |
2027 | 0f459d16 | pbrook | } else {
|
2028 | 0f459d16 | pbrook | te->addr_read = -1;
|
2029 | 0f459d16 | pbrook | } |
2030 | 5c751e99 | edgar_igl | |
2031 | 0f459d16 | pbrook | if (prot & PAGE_EXEC) {
|
2032 | 0f459d16 | pbrook | te->addr_code = code_address; |
2033 | 0f459d16 | pbrook | } else {
|
2034 | 0f459d16 | pbrook | te->addr_code = -1;
|
2035 | 0f459d16 | pbrook | } |
2036 | 0f459d16 | pbrook | if (prot & PAGE_WRITE) {
|
2037 | 0f459d16 | pbrook | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_ROM ||
|
2038 | 0f459d16 | pbrook | (pd & IO_MEM_ROMD)) { |
2039 | 0f459d16 | pbrook | /* Write access calls the I/O callback. */
|
2040 | 0f459d16 | pbrook | te->addr_write = address | TLB_MMIO; |
2041 | 0f459d16 | pbrook | } else if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM && |
2042 | 0f459d16 | pbrook | !cpu_physical_memory_is_dirty(pd)) { |
2043 | 0f459d16 | pbrook | te->addr_write = address | TLB_NOTDIRTY; |
2044 | 9fa3e853 | bellard | } else {
|
2045 | 0f459d16 | pbrook | te->addr_write = address; |
2046 | 9fa3e853 | bellard | } |
2047 | 0f459d16 | pbrook | } else {
|
2048 | 0f459d16 | pbrook | te->addr_write = -1;
|
2049 | 9fa3e853 | bellard | } |
2050 | 9fa3e853 | bellard | return ret;
|
2051 | 9fa3e853 | bellard | } |
2052 | 9fa3e853 | bellard | |
2053 | 0124311e | bellard | #else
|
2054 | 0124311e | bellard | |
2055 | ee8b7021 | bellard | void tlb_flush(CPUState *env, int flush_global) |
2056 | 0124311e | bellard | { |
2057 | 0124311e | bellard | } |
2058 | 0124311e | bellard | |
2059 | 2e12669a | bellard | void tlb_flush_page(CPUState *env, target_ulong addr)
|
2060 | 0124311e | bellard | { |
2061 | 0124311e | bellard | } |
2062 | 0124311e | bellard | |
2063 | 5fafdf24 | ths | int tlb_set_page_exec(CPUState *env, target_ulong vaddr,
|
2064 | c227f099 | Anthony Liguori | target_phys_addr_t paddr, int prot,
|
2065 | 6ebbf390 | j_mayer | int mmu_idx, int is_softmmu) |
2066 | 9fa3e853 | bellard | { |
2067 | 9fa3e853 | bellard | return 0; |
2068 | 9fa3e853 | bellard | } |
2069 | 0124311e | bellard | |
2070 | edf8e2af | Mika Westerberg | /*
|
2071 | edf8e2af | Mika Westerberg | * Walks guest process memory "regions" one by one
|
2072 | edf8e2af | Mika Westerberg | * and calls callback function 'fn' for each region.
|
2073 | edf8e2af | Mika Westerberg | */
|
2074 | edf8e2af | Mika Westerberg | int walk_memory_regions(void *priv, |
2075 | edf8e2af | Mika Westerberg | int (*fn)(void *, unsigned long, unsigned long, unsigned long)) |
2076 | 33417e70 | bellard | { |
2077 | 9fa3e853 | bellard | unsigned long start, end; |
2078 | edf8e2af | Mika Westerberg | PageDesc *p = NULL;
|
2079 | 9fa3e853 | bellard | int i, j, prot, prot1;
|
2080 | edf8e2af | Mika Westerberg | int rc = 0; |
2081 | 33417e70 | bellard | |
2082 | edf8e2af | Mika Westerberg | start = end = -1;
|
2083 | 9fa3e853 | bellard | prot = 0;
|
2084 | edf8e2af | Mika Westerberg | |
2085 | edf8e2af | Mika Westerberg | for (i = 0; i <= L1_SIZE; i++) { |
2086 | edf8e2af | Mika Westerberg | p = (i < L1_SIZE) ? l1_map[i] : NULL;
|
2087 | edf8e2af | Mika Westerberg | for (j = 0; j < L2_SIZE; j++) { |
2088 | edf8e2af | Mika Westerberg | prot1 = (p == NULL) ? 0 : p[j].flags; |
2089 | edf8e2af | Mika Westerberg | /*
|
2090 | edf8e2af | Mika Westerberg | * "region" is one continuous chunk of memory
|
2091 | edf8e2af | Mika Westerberg | * that has same protection flags set.
|
2092 | edf8e2af | Mika Westerberg | */
|
2093 | 9fa3e853 | bellard | if (prot1 != prot) {
|
2094 | 9fa3e853 | bellard | end = (i << (32 - L1_BITS)) | (j << TARGET_PAGE_BITS);
|
2095 | 9fa3e853 | bellard | if (start != -1) { |
2096 | edf8e2af | Mika Westerberg | rc = (*fn)(priv, start, end, prot); |
2097 | edf8e2af | Mika Westerberg | /* callback can stop iteration by returning != 0 */
|
2098 | edf8e2af | Mika Westerberg | if (rc != 0) |
2099 | edf8e2af | Mika Westerberg | return (rc);
|
2100 | 9fa3e853 | bellard | } |
2101 | 9fa3e853 | bellard | if (prot1 != 0) |
2102 | 9fa3e853 | bellard | start = end; |
2103 | 9fa3e853 | bellard | else
|
2104 | 9fa3e853 | bellard | start = -1;
|
2105 | 9fa3e853 | bellard | prot = prot1; |
2106 | 9fa3e853 | bellard | } |
2107 | edf8e2af | Mika Westerberg | if (p == NULL) |
2108 | 9fa3e853 | bellard | break;
|
2109 | 9fa3e853 | bellard | } |
2110 | 33417e70 | bellard | } |
2111 | edf8e2af | Mika Westerberg | return (rc);
|
2112 | edf8e2af | Mika Westerberg | } |
2113 | edf8e2af | Mika Westerberg | |
2114 | edf8e2af | Mika Westerberg | static int dump_region(void *priv, unsigned long start, |
2115 | edf8e2af | Mika Westerberg | unsigned long end, unsigned long prot) |
2116 | edf8e2af | Mika Westerberg | { |
2117 | edf8e2af | Mika Westerberg | FILE *f = (FILE *)priv; |
2118 | edf8e2af | Mika Westerberg | |
2119 | edf8e2af | Mika Westerberg | (void) fprintf(f, "%08lx-%08lx %08lx %c%c%c\n", |
2120 | edf8e2af | Mika Westerberg | start, end, end - start, |
2121 | edf8e2af | Mika Westerberg | ((prot & PAGE_READ) ? 'r' : '-'), |
2122 | edf8e2af | Mika Westerberg | ((prot & PAGE_WRITE) ? 'w' : '-'), |
2123 | edf8e2af | Mika Westerberg | ((prot & PAGE_EXEC) ? 'x' : '-')); |
2124 | edf8e2af | Mika Westerberg | |
2125 | edf8e2af | Mika Westerberg | return (0); |
2126 | edf8e2af | Mika Westerberg | } |
2127 | edf8e2af | Mika Westerberg | |
2128 | edf8e2af | Mika Westerberg | /* dump memory mappings */
|
2129 | edf8e2af | Mika Westerberg | void page_dump(FILE *f)
|
2130 | edf8e2af | Mika Westerberg | { |
2131 | edf8e2af | Mika Westerberg | (void) fprintf(f, "%-8s %-8s %-8s %s\n", |
2132 | edf8e2af | Mika Westerberg | "start", "end", "size", "prot"); |
2133 | edf8e2af | Mika Westerberg | walk_memory_regions(f, dump_region); |
2134 | 33417e70 | bellard | } |
2135 | 33417e70 | bellard | |
2136 | 53a5960a | pbrook | int page_get_flags(target_ulong address)
|
2137 | 33417e70 | bellard | { |
2138 | 9fa3e853 | bellard | PageDesc *p; |
2139 | 9fa3e853 | bellard | |
2140 | 9fa3e853 | bellard | p = page_find(address >> TARGET_PAGE_BITS); |
2141 | 33417e70 | bellard | if (!p)
|
2142 | 9fa3e853 | bellard | return 0; |
2143 | 9fa3e853 | bellard | return p->flags;
|
2144 | 9fa3e853 | bellard | } |
2145 | 9fa3e853 | bellard | |
2146 | 9fa3e853 | bellard | /* modify the flags of a page and invalidate the code if
|
2147 | ccbb4d44 | Stuart Brady | necessary. The flag PAGE_WRITE_ORG is positioned automatically
|
2148 | 9fa3e853 | bellard | depending on PAGE_WRITE */
|
2149 | 53a5960a | pbrook | void page_set_flags(target_ulong start, target_ulong end, int flags) |
2150 | 9fa3e853 | bellard | { |
2151 | 9fa3e853 | bellard | PageDesc *p; |
2152 | 53a5960a | pbrook | target_ulong addr; |
2153 | 9fa3e853 | bellard | |
2154 | c8a706fe | pbrook | /* mmap_lock should already be held. */
|
2155 | 9fa3e853 | bellard | start = start & TARGET_PAGE_MASK; |
2156 | 9fa3e853 | bellard | end = TARGET_PAGE_ALIGN(end); |
2157 | 9fa3e853 | bellard | if (flags & PAGE_WRITE)
|
2158 | 9fa3e853 | bellard | flags |= PAGE_WRITE_ORG; |
2159 | 9fa3e853 | bellard | for(addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
|
2160 | 9fa3e853 | bellard | p = page_find_alloc(addr >> TARGET_PAGE_BITS); |
2161 | 17e2377a | pbrook | /* We may be called for host regions that are outside guest
|
2162 | 17e2377a | pbrook | address space. */
|
2163 | 17e2377a | pbrook | if (!p)
|
2164 | 17e2377a | pbrook | return;
|
2165 | 9fa3e853 | bellard | /* if the write protection is set, then we invalidate the code
|
2166 | 9fa3e853 | bellard | inside */
|
2167 | 5fafdf24 | ths | if (!(p->flags & PAGE_WRITE) &&
|
2168 | 9fa3e853 | bellard | (flags & PAGE_WRITE) && |
2169 | 9fa3e853 | bellard | p->first_tb) { |
2170 | d720b93d | bellard | tb_invalidate_phys_page(addr, 0, NULL); |
2171 | 9fa3e853 | bellard | } |
2172 | 9fa3e853 | bellard | p->flags = flags; |
2173 | 9fa3e853 | bellard | } |
2174 | 33417e70 | bellard | } |
2175 | 33417e70 | bellard | |
2176 | 3d97b40b | ths | int page_check_range(target_ulong start, target_ulong len, int flags) |
2177 | 3d97b40b | ths | { |
2178 | 3d97b40b | ths | PageDesc *p; |
2179 | 3d97b40b | ths | target_ulong end; |
2180 | 3d97b40b | ths | target_ulong addr; |
2181 | 3d97b40b | ths | |
2182 | 55f280c9 | balrog | if (start + len < start)
|
2183 | 55f280c9 | balrog | /* we've wrapped around */
|
2184 | 55f280c9 | balrog | return -1; |
2185 | 55f280c9 | balrog | |
2186 | 3d97b40b | ths | end = TARGET_PAGE_ALIGN(start+len); /* must do before we loose bits in the next step */
|
2187 | 3d97b40b | ths | start = start & TARGET_PAGE_MASK; |
2188 | 3d97b40b | ths | |
2189 | 3d97b40b | ths | for(addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
|
2190 | 3d97b40b | ths | p = page_find(addr >> TARGET_PAGE_BITS); |
2191 | 3d97b40b | ths | if( !p )
|
2192 | 3d97b40b | ths | return -1; |
2193 | 3d97b40b | ths | if( !(p->flags & PAGE_VALID) )
|
2194 | 3d97b40b | ths | return -1; |
2195 | 3d97b40b | ths | |
2196 | dae3270c | bellard | if ((flags & PAGE_READ) && !(p->flags & PAGE_READ))
|
2197 | 3d97b40b | ths | return -1; |
2198 | dae3270c | bellard | if (flags & PAGE_WRITE) {
|
2199 | dae3270c | bellard | if (!(p->flags & PAGE_WRITE_ORG))
|
2200 | dae3270c | bellard | return -1; |
2201 | dae3270c | bellard | /* unprotect the page if it was put read-only because it
|
2202 | dae3270c | bellard | contains translated code */
|
2203 | dae3270c | bellard | if (!(p->flags & PAGE_WRITE)) {
|
2204 | dae3270c | bellard | if (!page_unprotect(addr, 0, NULL)) |
2205 | dae3270c | bellard | return -1; |
2206 | dae3270c | bellard | } |
2207 | dae3270c | bellard | return 0; |
2208 | dae3270c | bellard | } |
2209 | 3d97b40b | ths | } |
2210 | 3d97b40b | ths | return 0; |
2211 | 3d97b40b | ths | } |
2212 | 3d97b40b | ths | |
2213 | 9fa3e853 | bellard | /* called from signal handler: invalidate the code and unprotect the
|
2214 | ccbb4d44 | Stuart Brady | page. Return TRUE if the fault was successfully handled. */
|
2215 | 53a5960a | pbrook | int page_unprotect(target_ulong address, unsigned long pc, void *puc) |
2216 | 9fa3e853 | bellard | { |
2217 | 9fa3e853 | bellard | unsigned int page_index, prot, pindex; |
2218 | 9fa3e853 | bellard | PageDesc *p, *p1; |
2219 | 53a5960a | pbrook | target_ulong host_start, host_end, addr; |
2220 | 9fa3e853 | bellard | |
2221 | c8a706fe | pbrook | /* Technically this isn't safe inside a signal handler. However we
|
2222 | c8a706fe | pbrook | know this only ever happens in a synchronous SEGV handler, so in
|
2223 | c8a706fe | pbrook | practice it seems to be ok. */
|
2224 | c8a706fe | pbrook | mmap_lock(); |
2225 | c8a706fe | pbrook | |
2226 | 83fb7adf | bellard | host_start = address & qemu_host_page_mask; |
2227 | 9fa3e853 | bellard | page_index = host_start >> TARGET_PAGE_BITS; |
2228 | 9fa3e853 | bellard | p1 = page_find(page_index); |
2229 | c8a706fe | pbrook | if (!p1) {
|
2230 | c8a706fe | pbrook | mmap_unlock(); |
2231 | 9fa3e853 | bellard | return 0; |
2232 | c8a706fe | pbrook | } |
2233 | 83fb7adf | bellard | host_end = host_start + qemu_host_page_size; |
2234 | 9fa3e853 | bellard | p = p1; |
2235 | 9fa3e853 | bellard | prot = 0;
|
2236 | 9fa3e853 | bellard | for(addr = host_start;addr < host_end; addr += TARGET_PAGE_SIZE) {
|
2237 | 9fa3e853 | bellard | prot |= p->flags; |
2238 | 9fa3e853 | bellard | p++; |
2239 | 9fa3e853 | bellard | } |
2240 | 9fa3e853 | bellard | /* if the page was really writable, then we change its
|
2241 | 9fa3e853 | bellard | protection back to writable */
|
2242 | 9fa3e853 | bellard | if (prot & PAGE_WRITE_ORG) {
|
2243 | 9fa3e853 | bellard | pindex = (address - host_start) >> TARGET_PAGE_BITS; |
2244 | 9fa3e853 | bellard | if (!(p1[pindex].flags & PAGE_WRITE)) {
|
2245 | 5fafdf24 | ths | mprotect((void *)g2h(host_start), qemu_host_page_size,
|
2246 | 9fa3e853 | bellard | (prot & PAGE_BITS) | PAGE_WRITE); |
2247 | 9fa3e853 | bellard | p1[pindex].flags |= PAGE_WRITE; |
2248 | 9fa3e853 | bellard | /* and since the content will be modified, we must invalidate
|
2249 | 9fa3e853 | bellard | the corresponding translated code. */
|
2250 | d720b93d | bellard | tb_invalidate_phys_page(address, pc, puc); |
2251 | 9fa3e853 | bellard | #ifdef DEBUG_TB_CHECK
|
2252 | 9fa3e853 | bellard | tb_invalidate_check(address); |
2253 | 9fa3e853 | bellard | #endif
|
2254 | c8a706fe | pbrook | mmap_unlock(); |
2255 | 9fa3e853 | bellard | return 1; |
2256 | 9fa3e853 | bellard | } |
2257 | 9fa3e853 | bellard | } |
2258 | c8a706fe | pbrook | mmap_unlock(); |
2259 | 9fa3e853 | bellard | return 0; |
2260 | 9fa3e853 | bellard | } |
2261 | 9fa3e853 | bellard | |
2262 | 6a00d601 | bellard | static inline void tlb_set_dirty(CPUState *env, |
2263 | 6a00d601 | bellard | unsigned long addr, target_ulong vaddr) |
2264 | 1ccde1cb | bellard | { |
2265 | 1ccde1cb | bellard | } |
2266 | 9fa3e853 | bellard | #endif /* defined(CONFIG_USER_ONLY) */ |
2267 | 9fa3e853 | bellard | |
2268 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
|
2269 | 8da3ff18 | pbrook | |
2270 | c227f099 | Anthony Liguori | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
2271 | c227f099 | Anthony Liguori | ram_addr_t memory, ram_addr_t region_offset); |
2272 | c227f099 | Anthony Liguori | static void *subpage_init (target_phys_addr_t base, ram_addr_t *phys, |
2273 | c227f099 | Anthony Liguori | ram_addr_t orig_memory, ram_addr_t region_offset); |
2274 | db7b5426 | blueswir1 | #define CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, \
|
2275 | db7b5426 | blueswir1 | need_subpage) \ |
2276 | db7b5426 | blueswir1 | do { \
|
2277 | db7b5426 | blueswir1 | if (addr > start_addr) \
|
2278 | db7b5426 | blueswir1 | start_addr2 = 0; \
|
2279 | db7b5426 | blueswir1 | else { \
|
2280 | db7b5426 | blueswir1 | start_addr2 = start_addr & ~TARGET_PAGE_MASK; \ |
2281 | db7b5426 | blueswir1 | if (start_addr2 > 0) \ |
2282 | db7b5426 | blueswir1 | need_subpage = 1; \
|
2283 | db7b5426 | blueswir1 | } \ |
2284 | db7b5426 | blueswir1 | \ |
2285 | 49e9fba2 | blueswir1 | if ((start_addr + orig_size) - addr >= TARGET_PAGE_SIZE) \
|
2286 | db7b5426 | blueswir1 | end_addr2 = TARGET_PAGE_SIZE - 1; \
|
2287 | db7b5426 | blueswir1 | else { \
|
2288 | db7b5426 | blueswir1 | end_addr2 = (start_addr + orig_size - 1) & ~TARGET_PAGE_MASK; \
|
2289 | db7b5426 | blueswir1 | if (end_addr2 < TARGET_PAGE_SIZE - 1) \ |
2290 | db7b5426 | blueswir1 | need_subpage = 1; \
|
2291 | db7b5426 | blueswir1 | } \ |
2292 | db7b5426 | blueswir1 | } while (0) |
2293 | db7b5426 | blueswir1 | |
2294 | 8f2498f9 | Michael S. Tsirkin | /* register physical memory.
|
2295 | 8f2498f9 | Michael S. Tsirkin | For RAM, 'size' must be a multiple of the target page size.
|
2296 | 8f2498f9 | Michael S. Tsirkin | If (phys_offset & ~TARGET_PAGE_MASK) != 0, then it is an
|
2297 | 8da3ff18 | pbrook | io memory page. The address used when calling the IO function is
|
2298 | 8da3ff18 | pbrook | the offset from the start of the region, plus region_offset. Both
|
2299 | ccbb4d44 | Stuart Brady | start_addr and region_offset are rounded down to a page boundary
|
2300 | 8da3ff18 | pbrook | before calculating this offset. This should not be a problem unless
|
2301 | 8da3ff18 | pbrook | the low bits of start_addr and region_offset differ. */
|
2302 | c227f099 | Anthony Liguori | void cpu_register_physical_memory_offset(target_phys_addr_t start_addr,
|
2303 | c227f099 | Anthony Liguori | ram_addr_t size, |
2304 | c227f099 | Anthony Liguori | ram_addr_t phys_offset, |
2305 | c227f099 | Anthony Liguori | ram_addr_t region_offset) |
2306 | 33417e70 | bellard | { |
2307 | c227f099 | Anthony Liguori | target_phys_addr_t addr, end_addr; |
2308 | 92e873b9 | bellard | PhysPageDesc *p; |
2309 | 9d42037b | bellard | CPUState *env; |
2310 | c227f099 | Anthony Liguori | ram_addr_t orig_size = size; |
2311 | db7b5426 | blueswir1 | void *subpage;
|
2312 | 33417e70 | bellard | |
2313 | 7ba1e619 | aliguori | if (kvm_enabled())
|
2314 | 7ba1e619 | aliguori | kvm_set_phys_mem(start_addr, size, phys_offset); |
2315 | 7ba1e619 | aliguori | |
2316 | 67c4d23c | pbrook | if (phys_offset == IO_MEM_UNASSIGNED) {
|
2317 | 67c4d23c | pbrook | region_offset = start_addr; |
2318 | 67c4d23c | pbrook | } |
2319 | 8da3ff18 | pbrook | region_offset &= TARGET_PAGE_MASK; |
2320 | 5fd386f6 | bellard | size = (size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
|
2321 | c227f099 | Anthony Liguori | end_addr = start_addr + (target_phys_addr_t)size; |
2322 | 49e9fba2 | blueswir1 | for(addr = start_addr; addr != end_addr; addr += TARGET_PAGE_SIZE) {
|
2323 | db7b5426 | blueswir1 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
2324 | db7b5426 | blueswir1 | if (p && p->phys_offset != IO_MEM_UNASSIGNED) {
|
2325 | c227f099 | Anthony Liguori | ram_addr_t orig_memory = p->phys_offset; |
2326 | c227f099 | Anthony Liguori | target_phys_addr_t start_addr2, end_addr2; |
2327 | db7b5426 | blueswir1 | int need_subpage = 0; |
2328 | db7b5426 | blueswir1 | |
2329 | db7b5426 | blueswir1 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, |
2330 | db7b5426 | blueswir1 | need_subpage); |
2331 | 4254fab8 | blueswir1 | if (need_subpage || phys_offset & IO_MEM_SUBWIDTH) {
|
2332 | db7b5426 | blueswir1 | if (!(orig_memory & IO_MEM_SUBPAGE)) {
|
2333 | db7b5426 | blueswir1 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
2334 | 8da3ff18 | pbrook | &p->phys_offset, orig_memory, |
2335 | 8da3ff18 | pbrook | p->region_offset); |
2336 | db7b5426 | blueswir1 | } else {
|
2337 | db7b5426 | blueswir1 | subpage = io_mem_opaque[(orig_memory & ~TARGET_PAGE_MASK) |
2338 | db7b5426 | blueswir1 | >> IO_MEM_SHIFT]; |
2339 | db7b5426 | blueswir1 | } |
2340 | 8da3ff18 | pbrook | subpage_register(subpage, start_addr2, end_addr2, phys_offset, |
2341 | 8da3ff18 | pbrook | region_offset); |
2342 | 8da3ff18 | pbrook | p->region_offset = 0;
|
2343 | db7b5426 | blueswir1 | } else {
|
2344 | db7b5426 | blueswir1 | p->phys_offset = phys_offset; |
2345 | db7b5426 | blueswir1 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM ||
|
2346 | db7b5426 | blueswir1 | (phys_offset & IO_MEM_ROMD)) |
2347 | db7b5426 | blueswir1 | phys_offset += TARGET_PAGE_SIZE; |
2348 | db7b5426 | blueswir1 | } |
2349 | db7b5426 | blueswir1 | } else {
|
2350 | db7b5426 | blueswir1 | p = phys_page_find_alloc(addr >> TARGET_PAGE_BITS, 1);
|
2351 | db7b5426 | blueswir1 | p->phys_offset = phys_offset; |
2352 | 8da3ff18 | pbrook | p->region_offset = region_offset; |
2353 | db7b5426 | blueswir1 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM ||
|
2354 | 8da3ff18 | pbrook | (phys_offset & IO_MEM_ROMD)) { |
2355 | db7b5426 | blueswir1 | phys_offset += TARGET_PAGE_SIZE; |
2356 | 0e8f0967 | pbrook | } else {
|
2357 | c227f099 | Anthony Liguori | target_phys_addr_t start_addr2, end_addr2; |
2358 | db7b5426 | blueswir1 | int need_subpage = 0; |
2359 | db7b5426 | blueswir1 | |
2360 | db7b5426 | blueswir1 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, |
2361 | db7b5426 | blueswir1 | end_addr2, need_subpage); |
2362 | db7b5426 | blueswir1 | |
2363 | 4254fab8 | blueswir1 | if (need_subpage || phys_offset & IO_MEM_SUBWIDTH) {
|
2364 | db7b5426 | blueswir1 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
2365 | 8da3ff18 | pbrook | &p->phys_offset, IO_MEM_UNASSIGNED, |
2366 | 67c4d23c | pbrook | addr & TARGET_PAGE_MASK); |
2367 | db7b5426 | blueswir1 | subpage_register(subpage, start_addr2, end_addr2, |
2368 | 8da3ff18 | pbrook | phys_offset, region_offset); |
2369 | 8da3ff18 | pbrook | p->region_offset = 0;
|
2370 | db7b5426 | blueswir1 | } |
2371 | db7b5426 | blueswir1 | } |
2372 | db7b5426 | blueswir1 | } |
2373 | 8da3ff18 | pbrook | region_offset += TARGET_PAGE_SIZE; |
2374 | 33417e70 | bellard | } |
2375 | 3b46e624 | ths | |
2376 | 9d42037b | bellard | /* since each CPU stores ram addresses in its TLB cache, we must
|
2377 | 9d42037b | bellard | reset the modified entries */
|
2378 | 9d42037b | bellard | /* XXX: slow ! */
|
2379 | 9d42037b | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
2380 | 9d42037b | bellard | tlb_flush(env, 1);
|
2381 | 9d42037b | bellard | } |
2382 | 33417e70 | bellard | } |
2383 | 33417e70 | bellard | |
2384 | ba863458 | bellard | /* XXX: temporary until new memory mapping API */
|
2385 | c227f099 | Anthony Liguori | ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr) |
2386 | ba863458 | bellard | { |
2387 | ba863458 | bellard | PhysPageDesc *p; |
2388 | ba863458 | bellard | |
2389 | ba863458 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
2390 | ba863458 | bellard | if (!p)
|
2391 | ba863458 | bellard | return IO_MEM_UNASSIGNED;
|
2392 | ba863458 | bellard | return p->phys_offset;
|
2393 | ba863458 | bellard | } |
2394 | ba863458 | bellard | |
2395 | c227f099 | Anthony Liguori | void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size)
|
2396 | f65ed4c1 | aliguori | { |
2397 | f65ed4c1 | aliguori | if (kvm_enabled())
|
2398 | f65ed4c1 | aliguori | kvm_coalesce_mmio_region(addr, size); |
2399 | f65ed4c1 | aliguori | } |
2400 | f65ed4c1 | aliguori | |
2401 | c227f099 | Anthony Liguori | void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size)
|
2402 | f65ed4c1 | aliguori | { |
2403 | f65ed4c1 | aliguori | if (kvm_enabled())
|
2404 | f65ed4c1 | aliguori | kvm_uncoalesce_mmio_region(addr, size); |
2405 | f65ed4c1 | aliguori | } |
2406 | f65ed4c1 | aliguori | |
2407 | c227f099 | Anthony Liguori | ram_addr_t qemu_ram_alloc(ram_addr_t size) |
2408 | 94a6b54f | pbrook | { |
2409 | 94a6b54f | pbrook | RAMBlock *new_block; |
2410 | 94a6b54f | pbrook | |
2411 | 94a6b54f | pbrook | size = TARGET_PAGE_ALIGN(size); |
2412 | 94a6b54f | pbrook | new_block = qemu_malloc(sizeof(*new_block));
|
2413 | 94a6b54f | pbrook | |
2414 | 94a6b54f | pbrook | new_block->host = qemu_vmalloc(size); |
2415 | ccb167e9 | Izik Eidus | #ifdef MADV_MERGEABLE
|
2416 | ccb167e9 | Izik Eidus | madvise(new_block->host, size, MADV_MERGEABLE); |
2417 | ccb167e9 | Izik Eidus | #endif
|
2418 | 94a6b54f | pbrook | new_block->offset = last_ram_offset; |
2419 | 94a6b54f | pbrook | new_block->length = size; |
2420 | 94a6b54f | pbrook | |
2421 | 94a6b54f | pbrook | new_block->next = ram_blocks; |
2422 | 94a6b54f | pbrook | ram_blocks = new_block; |
2423 | 94a6b54f | pbrook | |
2424 | 94a6b54f | pbrook | phys_ram_dirty = qemu_realloc(phys_ram_dirty, |
2425 | 94a6b54f | pbrook | (last_ram_offset + size) >> TARGET_PAGE_BITS); |
2426 | 94a6b54f | pbrook | memset(phys_ram_dirty + (last_ram_offset >> TARGET_PAGE_BITS), |
2427 | 94a6b54f | pbrook | 0xff, size >> TARGET_PAGE_BITS);
|
2428 | 94a6b54f | pbrook | |
2429 | 94a6b54f | pbrook | last_ram_offset += size; |
2430 | 94a6b54f | pbrook | |
2431 | 6f0437e8 | Jan Kiszka | if (kvm_enabled())
|
2432 | 6f0437e8 | Jan Kiszka | kvm_setup_guest_memory(new_block->host, size); |
2433 | 6f0437e8 | Jan Kiszka | |
2434 | 94a6b54f | pbrook | return new_block->offset;
|
2435 | 94a6b54f | pbrook | } |
2436 | e9a1ab19 | bellard | |
2437 | c227f099 | Anthony Liguori | void qemu_ram_free(ram_addr_t addr)
|
2438 | e9a1ab19 | bellard | { |
2439 | 94a6b54f | pbrook | /* TODO: implement this. */
|
2440 | e9a1ab19 | bellard | } |
2441 | e9a1ab19 | bellard | |
2442 | dc828ca1 | pbrook | /* Return a host pointer to ram allocated with qemu_ram_alloc.
|
2443 | 5579c7f3 | pbrook | With the exception of the softmmu code in this file, this should
|
2444 | 5579c7f3 | pbrook | only be used for local memory (e.g. video ram) that the device owns,
|
2445 | 5579c7f3 | pbrook | and knows it isn't going to access beyond the end of the block.
|
2446 | 5579c7f3 | pbrook | |
2447 | 5579c7f3 | pbrook | It should not be used for general purpose DMA.
|
2448 | 5579c7f3 | pbrook | Use cpu_physical_memory_map/cpu_physical_memory_rw instead.
|
2449 | 5579c7f3 | pbrook | */
|
2450 | c227f099 | Anthony Liguori | void *qemu_get_ram_ptr(ram_addr_t addr)
|
2451 | dc828ca1 | pbrook | { |
2452 | 94a6b54f | pbrook | RAMBlock *prev; |
2453 | 94a6b54f | pbrook | RAMBlock **prevp; |
2454 | 94a6b54f | pbrook | RAMBlock *block; |
2455 | 94a6b54f | pbrook | |
2456 | 94a6b54f | pbrook | prev = NULL;
|
2457 | 94a6b54f | pbrook | prevp = &ram_blocks; |
2458 | 94a6b54f | pbrook | block = ram_blocks; |
2459 | 94a6b54f | pbrook | while (block && (block->offset > addr
|
2460 | 94a6b54f | pbrook | || block->offset + block->length <= addr)) { |
2461 | 94a6b54f | pbrook | if (prev)
|
2462 | 94a6b54f | pbrook | prevp = &prev->next; |
2463 | 94a6b54f | pbrook | prev = block; |
2464 | 94a6b54f | pbrook | block = block->next; |
2465 | 94a6b54f | pbrook | } |
2466 | 94a6b54f | pbrook | if (!block) {
|
2467 | 94a6b54f | pbrook | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
2468 | 94a6b54f | pbrook | abort(); |
2469 | 94a6b54f | pbrook | } |
2470 | 94a6b54f | pbrook | /* Move this entry to to start of the list. */
|
2471 | 94a6b54f | pbrook | if (prev) {
|
2472 | 94a6b54f | pbrook | prev->next = block->next; |
2473 | 94a6b54f | pbrook | block->next = *prevp; |
2474 | 94a6b54f | pbrook | *prevp = block; |
2475 | 94a6b54f | pbrook | } |
2476 | 94a6b54f | pbrook | return block->host + (addr - block->offset);
|
2477 | dc828ca1 | pbrook | } |
2478 | dc828ca1 | pbrook | |
2479 | 5579c7f3 | pbrook | /* Some of the softmmu routines need to translate from a host pointer
|
2480 | 5579c7f3 | pbrook | (typically a TLB entry) back to a ram offset. */
|
2481 | c227f099 | Anthony Liguori | ram_addr_t qemu_ram_addr_from_host(void *ptr)
|
2482 | 5579c7f3 | pbrook | { |
2483 | 94a6b54f | pbrook | RAMBlock *prev; |
2484 | 94a6b54f | pbrook | RAMBlock **prevp; |
2485 | 94a6b54f | pbrook | RAMBlock *block; |
2486 | 94a6b54f | pbrook | uint8_t *host = ptr; |
2487 | 94a6b54f | pbrook | |
2488 | 94a6b54f | pbrook | prev = NULL;
|
2489 | 94a6b54f | pbrook | prevp = &ram_blocks; |
2490 | 94a6b54f | pbrook | block = ram_blocks; |
2491 | 94a6b54f | pbrook | while (block && (block->host > host
|
2492 | 94a6b54f | pbrook | || block->host + block->length <= host)) { |
2493 | 94a6b54f | pbrook | if (prev)
|
2494 | 94a6b54f | pbrook | prevp = &prev->next; |
2495 | 94a6b54f | pbrook | prev = block; |
2496 | 94a6b54f | pbrook | block = block->next; |
2497 | 94a6b54f | pbrook | } |
2498 | 94a6b54f | pbrook | if (!block) {
|
2499 | 94a6b54f | pbrook | fprintf(stderr, "Bad ram pointer %p\n", ptr);
|
2500 | 94a6b54f | pbrook | abort(); |
2501 | 94a6b54f | pbrook | } |
2502 | 94a6b54f | pbrook | return block->offset + (host - block->host);
|
2503 | 5579c7f3 | pbrook | } |
2504 | 5579c7f3 | pbrook | |
2505 | c227f099 | Anthony Liguori | static uint32_t unassigned_mem_readb(void *opaque, target_phys_addr_t addr) |
2506 | 33417e70 | bellard | { |
2507 | 67d3b957 | pbrook | #ifdef DEBUG_UNASSIGNED
|
2508 | ab3d1727 | blueswir1 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
2509 | 67d3b957 | pbrook | #endif
|
2510 | faed1c2a | Edgar E. Iglesias | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
2511 | e18231a3 | blueswir1 | do_unassigned_access(addr, 0, 0, 0, 1); |
2512 | e18231a3 | blueswir1 | #endif
|
2513 | e18231a3 | blueswir1 | return 0; |
2514 | e18231a3 | blueswir1 | } |
2515 | e18231a3 | blueswir1 | |
2516 | c227f099 | Anthony Liguori | static uint32_t unassigned_mem_readw(void *opaque, target_phys_addr_t addr) |
2517 | e18231a3 | blueswir1 | { |
2518 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
2519 | e18231a3 | blueswir1 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
2520 | e18231a3 | blueswir1 | #endif
|
2521 | faed1c2a | Edgar E. Iglesias | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
2522 | e18231a3 | blueswir1 | do_unassigned_access(addr, 0, 0, 0, 2); |
2523 | e18231a3 | blueswir1 | #endif
|
2524 | e18231a3 | blueswir1 | return 0; |
2525 | e18231a3 | blueswir1 | } |
2526 | e18231a3 | blueswir1 | |
2527 | c227f099 | Anthony Liguori | static uint32_t unassigned_mem_readl(void *opaque, target_phys_addr_t addr) |
2528 | e18231a3 | blueswir1 | { |
2529 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
2530 | e18231a3 | blueswir1 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
2531 | e18231a3 | blueswir1 | #endif
|
2532 | faed1c2a | Edgar E. Iglesias | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
2533 | e18231a3 | blueswir1 | do_unassigned_access(addr, 0, 0, 0, 4); |
2534 | b4f0a316 | blueswir1 | #endif
|
2535 | 33417e70 | bellard | return 0; |
2536 | 33417e70 | bellard | } |
2537 | 33417e70 | bellard | |
2538 | c227f099 | Anthony Liguori | static void unassigned_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
2539 | 33417e70 | bellard | { |
2540 | 67d3b957 | pbrook | #ifdef DEBUG_UNASSIGNED
|
2541 | ab3d1727 | blueswir1 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
2542 | 67d3b957 | pbrook | #endif
|
2543 | faed1c2a | Edgar E. Iglesias | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
2544 | e18231a3 | blueswir1 | do_unassigned_access(addr, 1, 0, 0, 1); |
2545 | e18231a3 | blueswir1 | #endif
|
2546 | e18231a3 | blueswir1 | } |
2547 | e18231a3 | blueswir1 | |
2548 | c227f099 | Anthony Liguori | static void unassigned_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val) |
2549 | e18231a3 | blueswir1 | { |
2550 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
2551 | e18231a3 | blueswir1 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
2552 | e18231a3 | blueswir1 | #endif
|
2553 | faed1c2a | Edgar E. Iglesias | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
2554 | e18231a3 | blueswir1 | do_unassigned_access(addr, 1, 0, 0, 2); |
2555 | e18231a3 | blueswir1 | #endif
|
2556 | e18231a3 | blueswir1 | } |
2557 | e18231a3 | blueswir1 | |
2558 | c227f099 | Anthony Liguori | static void unassigned_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val) |
2559 | e18231a3 | blueswir1 | { |
2560 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
2561 | e18231a3 | blueswir1 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
2562 | e18231a3 | blueswir1 | #endif
|
2563 | faed1c2a | Edgar E. Iglesias | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
2564 | e18231a3 | blueswir1 | do_unassigned_access(addr, 1, 0, 0, 4); |
2565 | b4f0a316 | blueswir1 | #endif
|
2566 | 33417e70 | bellard | } |
2567 | 33417e70 | bellard | |
2568 | d60efc6b | Blue Swirl | static CPUReadMemoryFunc * const unassigned_mem_read[3] = { |
2569 | 33417e70 | bellard | unassigned_mem_readb, |
2570 | e18231a3 | blueswir1 | unassigned_mem_readw, |
2571 | e18231a3 | blueswir1 | unassigned_mem_readl, |
2572 | 33417e70 | bellard | }; |
2573 | 33417e70 | bellard | |
2574 | d60efc6b | Blue Swirl | static CPUWriteMemoryFunc * const unassigned_mem_write[3] = { |
2575 | 33417e70 | bellard | unassigned_mem_writeb, |
2576 | e18231a3 | blueswir1 | unassigned_mem_writew, |
2577 | e18231a3 | blueswir1 | unassigned_mem_writel, |
2578 | 33417e70 | bellard | }; |
2579 | 33417e70 | bellard | |
2580 | c227f099 | Anthony Liguori | static void notdirty_mem_writeb(void *opaque, target_phys_addr_t ram_addr, |
2581 | 0f459d16 | pbrook | uint32_t val) |
2582 | 9fa3e853 | bellard | { |
2583 | 3a7d929e | bellard | int dirty_flags;
|
2584 | 3a7d929e | bellard | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
2585 | 3a7d929e | bellard | if (!(dirty_flags & CODE_DIRTY_FLAG)) {
|
2586 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
2587 | 3a7d929e | bellard | tb_invalidate_phys_page_fast(ram_addr, 1);
|
2588 | 3a7d929e | bellard | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
2589 | 9fa3e853 | bellard | #endif
|
2590 | 3a7d929e | bellard | } |
2591 | 5579c7f3 | pbrook | stb_p(qemu_get_ram_ptr(ram_addr), val); |
2592 | f23db169 | bellard | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG);
|
2593 | f23db169 | bellard | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] = dirty_flags; |
2594 | f23db169 | bellard | /* we remove the notdirty callback only if the code has been
|
2595 | f23db169 | bellard | flushed */
|
2596 | f23db169 | bellard | if (dirty_flags == 0xff) |
2597 | 2e70f6ef | pbrook | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
2598 | 9fa3e853 | bellard | } |
2599 | 9fa3e853 | bellard | |
2600 | c227f099 | Anthony Liguori | static void notdirty_mem_writew(void *opaque, target_phys_addr_t ram_addr, |
2601 | 0f459d16 | pbrook | uint32_t val) |
2602 | 9fa3e853 | bellard | { |
2603 | 3a7d929e | bellard | int dirty_flags;
|
2604 | 3a7d929e | bellard | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
2605 | 3a7d929e | bellard | if (!(dirty_flags & CODE_DIRTY_FLAG)) {
|
2606 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
2607 | 3a7d929e | bellard | tb_invalidate_phys_page_fast(ram_addr, 2);
|
2608 | 3a7d929e | bellard | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
2609 | 9fa3e853 | bellard | #endif
|
2610 | 3a7d929e | bellard | } |
2611 | 5579c7f3 | pbrook | stw_p(qemu_get_ram_ptr(ram_addr), val); |
2612 | f23db169 | bellard | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG);
|
2613 | f23db169 | bellard | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] = dirty_flags; |
2614 | f23db169 | bellard | /* we remove the notdirty callback only if the code has been
|
2615 | f23db169 | bellard | flushed */
|
2616 | f23db169 | bellard | if (dirty_flags == 0xff) |
2617 | 2e70f6ef | pbrook | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
2618 | 9fa3e853 | bellard | } |
2619 | 9fa3e853 | bellard | |
2620 | c227f099 | Anthony Liguori | static void notdirty_mem_writel(void *opaque, target_phys_addr_t ram_addr, |
2621 | 0f459d16 | pbrook | uint32_t val) |
2622 | 9fa3e853 | bellard | { |
2623 | 3a7d929e | bellard | int dirty_flags;
|
2624 | 3a7d929e | bellard | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
2625 | 3a7d929e | bellard | if (!(dirty_flags & CODE_DIRTY_FLAG)) {
|
2626 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
2627 | 3a7d929e | bellard | tb_invalidate_phys_page_fast(ram_addr, 4);
|
2628 | 3a7d929e | bellard | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
2629 | 9fa3e853 | bellard | #endif
|
2630 | 3a7d929e | bellard | } |
2631 | 5579c7f3 | pbrook | stl_p(qemu_get_ram_ptr(ram_addr), val); |
2632 | f23db169 | bellard | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG);
|
2633 | f23db169 | bellard | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] = dirty_flags; |
2634 | f23db169 | bellard | /* we remove the notdirty callback only if the code has been
|
2635 | f23db169 | bellard | flushed */
|
2636 | f23db169 | bellard | if (dirty_flags == 0xff) |
2637 | 2e70f6ef | pbrook | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
2638 | 9fa3e853 | bellard | } |
2639 | 9fa3e853 | bellard | |
2640 | d60efc6b | Blue Swirl | static CPUReadMemoryFunc * const error_mem_read[3] = { |
2641 | 9fa3e853 | bellard | NULL, /* never used */ |
2642 | 9fa3e853 | bellard | NULL, /* never used */ |
2643 | 9fa3e853 | bellard | NULL, /* never used */ |
2644 | 9fa3e853 | bellard | }; |
2645 | 9fa3e853 | bellard | |
2646 | d60efc6b | Blue Swirl | static CPUWriteMemoryFunc * const notdirty_mem_write[3] = { |
2647 | 1ccde1cb | bellard | notdirty_mem_writeb, |
2648 | 1ccde1cb | bellard | notdirty_mem_writew, |
2649 | 1ccde1cb | bellard | notdirty_mem_writel, |
2650 | 1ccde1cb | bellard | }; |
2651 | 1ccde1cb | bellard | |
2652 | 0f459d16 | pbrook | /* Generate a debug exception if a watchpoint has been hit. */
|
2653 | b4051334 | aliguori | static void check_watchpoint(int offset, int len_mask, int flags) |
2654 | 0f459d16 | pbrook | { |
2655 | 0f459d16 | pbrook | CPUState *env = cpu_single_env; |
2656 | 06d55cc1 | aliguori | target_ulong pc, cs_base; |
2657 | 06d55cc1 | aliguori | TranslationBlock *tb; |
2658 | 0f459d16 | pbrook | target_ulong vaddr; |
2659 | a1d1bb31 | aliguori | CPUWatchpoint *wp; |
2660 | 06d55cc1 | aliguori | int cpu_flags;
|
2661 | 0f459d16 | pbrook | |
2662 | 06d55cc1 | aliguori | if (env->watchpoint_hit) {
|
2663 | 06d55cc1 | aliguori | /* We re-entered the check after replacing the TB. Now raise
|
2664 | 06d55cc1 | aliguori | * the debug interrupt so that is will trigger after the
|
2665 | 06d55cc1 | aliguori | * current instruction. */
|
2666 | 06d55cc1 | aliguori | cpu_interrupt(env, CPU_INTERRUPT_DEBUG); |
2667 | 06d55cc1 | aliguori | return;
|
2668 | 06d55cc1 | aliguori | } |
2669 | 2e70f6ef | pbrook | vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset; |
2670 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
2671 | b4051334 | aliguori | if ((vaddr == (wp->vaddr & len_mask) ||
|
2672 | b4051334 | aliguori | (vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) { |
2673 | 6e140f28 | aliguori | wp->flags |= BP_WATCHPOINT_HIT; |
2674 | 6e140f28 | aliguori | if (!env->watchpoint_hit) {
|
2675 | 6e140f28 | aliguori | env->watchpoint_hit = wp; |
2676 | 6e140f28 | aliguori | tb = tb_find_pc(env->mem_io_pc); |
2677 | 6e140f28 | aliguori | if (!tb) {
|
2678 | 6e140f28 | aliguori | cpu_abort(env, "check_watchpoint: could not find TB for "
|
2679 | 6e140f28 | aliguori | "pc=%p", (void *)env->mem_io_pc); |
2680 | 6e140f28 | aliguori | } |
2681 | 6e140f28 | aliguori | cpu_restore_state(tb, env, env->mem_io_pc, NULL);
|
2682 | 6e140f28 | aliguori | tb_phys_invalidate(tb, -1);
|
2683 | 6e140f28 | aliguori | if (wp->flags & BP_STOP_BEFORE_ACCESS) {
|
2684 | 6e140f28 | aliguori | env->exception_index = EXCP_DEBUG; |
2685 | 6e140f28 | aliguori | } else {
|
2686 | 6e140f28 | aliguori | cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags); |
2687 | 6e140f28 | aliguori | tb_gen_code(env, pc, cs_base, cpu_flags, 1);
|
2688 | 6e140f28 | aliguori | } |
2689 | 6e140f28 | aliguori | cpu_resume_from_signal(env, NULL);
|
2690 | 06d55cc1 | aliguori | } |
2691 | 6e140f28 | aliguori | } else {
|
2692 | 6e140f28 | aliguori | wp->flags &= ~BP_WATCHPOINT_HIT; |
2693 | 0f459d16 | pbrook | } |
2694 | 0f459d16 | pbrook | } |
2695 | 0f459d16 | pbrook | } |
2696 | 0f459d16 | pbrook | |
2697 | 6658ffb8 | pbrook | /* Watchpoint access routines. Watchpoints are inserted using TLB tricks,
|
2698 | 6658ffb8 | pbrook | so these check for a hit then pass through to the normal out-of-line
|
2699 | 6658ffb8 | pbrook | phys routines. */
|
2700 | c227f099 | Anthony Liguori | static uint32_t watch_mem_readb(void *opaque, target_phys_addr_t addr) |
2701 | 6658ffb8 | pbrook | { |
2702 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x0, BP_MEM_READ);
|
2703 | 6658ffb8 | pbrook | return ldub_phys(addr);
|
2704 | 6658ffb8 | pbrook | } |
2705 | 6658ffb8 | pbrook | |
2706 | c227f099 | Anthony Liguori | static uint32_t watch_mem_readw(void *opaque, target_phys_addr_t addr) |
2707 | 6658ffb8 | pbrook | { |
2708 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x1, BP_MEM_READ);
|
2709 | 6658ffb8 | pbrook | return lduw_phys(addr);
|
2710 | 6658ffb8 | pbrook | } |
2711 | 6658ffb8 | pbrook | |
2712 | c227f099 | Anthony Liguori | static uint32_t watch_mem_readl(void *opaque, target_phys_addr_t addr) |
2713 | 6658ffb8 | pbrook | { |
2714 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x3, BP_MEM_READ);
|
2715 | 6658ffb8 | pbrook | return ldl_phys(addr);
|
2716 | 6658ffb8 | pbrook | } |
2717 | 6658ffb8 | pbrook | |
2718 | c227f099 | Anthony Liguori | static void watch_mem_writeb(void *opaque, target_phys_addr_t addr, |
2719 | 6658ffb8 | pbrook | uint32_t val) |
2720 | 6658ffb8 | pbrook | { |
2721 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x0, BP_MEM_WRITE);
|
2722 | 6658ffb8 | pbrook | stb_phys(addr, val); |
2723 | 6658ffb8 | pbrook | } |
2724 | 6658ffb8 | pbrook | |
2725 | c227f099 | Anthony Liguori | static void watch_mem_writew(void *opaque, target_phys_addr_t addr, |
2726 | 6658ffb8 | pbrook | uint32_t val) |
2727 | 6658ffb8 | pbrook | { |
2728 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x1, BP_MEM_WRITE);
|
2729 | 6658ffb8 | pbrook | stw_phys(addr, val); |
2730 | 6658ffb8 | pbrook | } |
2731 | 6658ffb8 | pbrook | |
2732 | c227f099 | Anthony Liguori | static void watch_mem_writel(void *opaque, target_phys_addr_t addr, |
2733 | 6658ffb8 | pbrook | uint32_t val) |
2734 | 6658ffb8 | pbrook | { |
2735 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x3, BP_MEM_WRITE);
|
2736 | 6658ffb8 | pbrook | stl_phys(addr, val); |
2737 | 6658ffb8 | pbrook | } |
2738 | 6658ffb8 | pbrook | |
2739 | d60efc6b | Blue Swirl | static CPUReadMemoryFunc * const watch_mem_read[3] = { |
2740 | 6658ffb8 | pbrook | watch_mem_readb, |
2741 | 6658ffb8 | pbrook | watch_mem_readw, |
2742 | 6658ffb8 | pbrook | watch_mem_readl, |
2743 | 6658ffb8 | pbrook | }; |
2744 | 6658ffb8 | pbrook | |
2745 | d60efc6b | Blue Swirl | static CPUWriteMemoryFunc * const watch_mem_write[3] = { |
2746 | 6658ffb8 | pbrook | watch_mem_writeb, |
2747 | 6658ffb8 | pbrook | watch_mem_writew, |
2748 | 6658ffb8 | pbrook | watch_mem_writel, |
2749 | 6658ffb8 | pbrook | }; |
2750 | 6658ffb8 | pbrook | |
2751 | c227f099 | Anthony Liguori | static inline uint32_t subpage_readlen (subpage_t *mmio, target_phys_addr_t addr, |
2752 | db7b5426 | blueswir1 | unsigned int len) |
2753 | db7b5426 | blueswir1 | { |
2754 | db7b5426 | blueswir1 | uint32_t ret; |
2755 | db7b5426 | blueswir1 | unsigned int idx; |
2756 | db7b5426 | blueswir1 | |
2757 | 8da3ff18 | pbrook | idx = SUBPAGE_IDX(addr); |
2758 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2759 | db7b5426 | blueswir1 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d\n", __func__, |
2760 | db7b5426 | blueswir1 | mmio, len, addr, idx); |
2761 | db7b5426 | blueswir1 | #endif
|
2762 | 8da3ff18 | pbrook | ret = (**mmio->mem_read[idx][len])(mmio->opaque[idx][0][len],
|
2763 | 8da3ff18 | pbrook | addr + mmio->region_offset[idx][0][len]);
|
2764 | db7b5426 | blueswir1 | |
2765 | db7b5426 | blueswir1 | return ret;
|
2766 | db7b5426 | blueswir1 | } |
2767 | db7b5426 | blueswir1 | |
2768 | c227f099 | Anthony Liguori | static inline void subpage_writelen (subpage_t *mmio, target_phys_addr_t addr, |
2769 | db7b5426 | blueswir1 | uint32_t value, unsigned int len) |
2770 | db7b5426 | blueswir1 | { |
2771 | db7b5426 | blueswir1 | unsigned int idx; |
2772 | db7b5426 | blueswir1 | |
2773 | 8da3ff18 | pbrook | idx = SUBPAGE_IDX(addr); |
2774 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2775 | db7b5426 | blueswir1 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d value %08x\n", __func__, |
2776 | db7b5426 | blueswir1 | mmio, len, addr, idx, value); |
2777 | db7b5426 | blueswir1 | #endif
|
2778 | 8da3ff18 | pbrook | (**mmio->mem_write[idx][len])(mmio->opaque[idx][1][len],
|
2779 | 8da3ff18 | pbrook | addr + mmio->region_offset[idx][1][len],
|
2780 | 8da3ff18 | pbrook | value); |
2781 | db7b5426 | blueswir1 | } |
2782 | db7b5426 | blueswir1 | |
2783 | c227f099 | Anthony Liguori | static uint32_t subpage_readb (void *opaque, target_phys_addr_t addr) |
2784 | db7b5426 | blueswir1 | { |
2785 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2786 | db7b5426 | blueswir1 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
2787 | db7b5426 | blueswir1 | #endif
|
2788 | db7b5426 | blueswir1 | |
2789 | db7b5426 | blueswir1 | return subpage_readlen(opaque, addr, 0); |
2790 | db7b5426 | blueswir1 | } |
2791 | db7b5426 | blueswir1 | |
2792 | c227f099 | Anthony Liguori | static void subpage_writeb (void *opaque, target_phys_addr_t addr, |
2793 | db7b5426 | blueswir1 | uint32_t value) |
2794 | db7b5426 | blueswir1 | { |
2795 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2796 | db7b5426 | blueswir1 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
2797 | db7b5426 | blueswir1 | #endif
|
2798 | db7b5426 | blueswir1 | subpage_writelen(opaque, addr, value, 0);
|
2799 | db7b5426 | blueswir1 | } |
2800 | db7b5426 | blueswir1 | |
2801 | c227f099 | Anthony Liguori | static uint32_t subpage_readw (void *opaque, target_phys_addr_t addr) |
2802 | db7b5426 | blueswir1 | { |
2803 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2804 | db7b5426 | blueswir1 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
2805 | db7b5426 | blueswir1 | #endif
|
2806 | db7b5426 | blueswir1 | |
2807 | db7b5426 | blueswir1 | return subpage_readlen(opaque, addr, 1); |
2808 | db7b5426 | blueswir1 | } |
2809 | db7b5426 | blueswir1 | |
2810 | c227f099 | Anthony Liguori | static void subpage_writew (void *opaque, target_phys_addr_t addr, |
2811 | db7b5426 | blueswir1 | uint32_t value) |
2812 | db7b5426 | blueswir1 | { |
2813 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2814 | db7b5426 | blueswir1 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
2815 | db7b5426 | blueswir1 | #endif
|
2816 | db7b5426 | blueswir1 | subpage_writelen(opaque, addr, value, 1);
|
2817 | db7b5426 | blueswir1 | } |
2818 | db7b5426 | blueswir1 | |
2819 | c227f099 | Anthony Liguori | static uint32_t subpage_readl (void *opaque, target_phys_addr_t addr) |
2820 | db7b5426 | blueswir1 | { |
2821 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2822 | db7b5426 | blueswir1 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
2823 | db7b5426 | blueswir1 | #endif
|
2824 | db7b5426 | blueswir1 | |
2825 | db7b5426 | blueswir1 | return subpage_readlen(opaque, addr, 2); |
2826 | db7b5426 | blueswir1 | } |
2827 | db7b5426 | blueswir1 | |
2828 | db7b5426 | blueswir1 | static void subpage_writel (void *opaque, |
2829 | c227f099 | Anthony Liguori | target_phys_addr_t addr, uint32_t value) |
2830 | db7b5426 | blueswir1 | { |
2831 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2832 | db7b5426 | blueswir1 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
2833 | db7b5426 | blueswir1 | #endif
|
2834 | db7b5426 | blueswir1 | subpage_writelen(opaque, addr, value, 2);
|
2835 | db7b5426 | blueswir1 | } |
2836 | db7b5426 | blueswir1 | |
2837 | d60efc6b | Blue Swirl | static CPUReadMemoryFunc * const subpage_read[] = { |
2838 | db7b5426 | blueswir1 | &subpage_readb, |
2839 | db7b5426 | blueswir1 | &subpage_readw, |
2840 | db7b5426 | blueswir1 | &subpage_readl, |
2841 | db7b5426 | blueswir1 | }; |
2842 | db7b5426 | blueswir1 | |
2843 | d60efc6b | Blue Swirl | static CPUWriteMemoryFunc * const subpage_write[] = { |
2844 | db7b5426 | blueswir1 | &subpage_writeb, |
2845 | db7b5426 | blueswir1 | &subpage_writew, |
2846 | db7b5426 | blueswir1 | &subpage_writel, |
2847 | db7b5426 | blueswir1 | }; |
2848 | db7b5426 | blueswir1 | |
2849 | c227f099 | Anthony Liguori | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
2850 | c227f099 | Anthony Liguori | ram_addr_t memory, ram_addr_t region_offset) |
2851 | db7b5426 | blueswir1 | { |
2852 | db7b5426 | blueswir1 | int idx, eidx;
|
2853 | 4254fab8 | blueswir1 | unsigned int i; |
2854 | db7b5426 | blueswir1 | |
2855 | db7b5426 | blueswir1 | if (start >= TARGET_PAGE_SIZE || end >= TARGET_PAGE_SIZE)
|
2856 | db7b5426 | blueswir1 | return -1; |
2857 | db7b5426 | blueswir1 | idx = SUBPAGE_IDX(start); |
2858 | db7b5426 | blueswir1 | eidx = SUBPAGE_IDX(end); |
2859 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2860 | 0bf9e31a | Blue Swirl | printf("%s: %p start %08x end %08x idx %08x eidx %08x mem %ld\n", __func__,
|
2861 | db7b5426 | blueswir1 | mmio, start, end, idx, eidx, memory); |
2862 | db7b5426 | blueswir1 | #endif
|
2863 | db7b5426 | blueswir1 | memory >>= IO_MEM_SHIFT; |
2864 | db7b5426 | blueswir1 | for (; idx <= eidx; idx++) {
|
2865 | 4254fab8 | blueswir1 | for (i = 0; i < 4; i++) { |
2866 | 3ee89922 | blueswir1 | if (io_mem_read[memory][i]) {
|
2867 | 3ee89922 | blueswir1 | mmio->mem_read[idx][i] = &io_mem_read[memory][i]; |
2868 | 3ee89922 | blueswir1 | mmio->opaque[idx][0][i] = io_mem_opaque[memory];
|
2869 | 8da3ff18 | pbrook | mmio->region_offset[idx][0][i] = region_offset;
|
2870 | 3ee89922 | blueswir1 | } |
2871 | 3ee89922 | blueswir1 | if (io_mem_write[memory][i]) {
|
2872 | 3ee89922 | blueswir1 | mmio->mem_write[idx][i] = &io_mem_write[memory][i]; |
2873 | 3ee89922 | blueswir1 | mmio->opaque[idx][1][i] = io_mem_opaque[memory];
|
2874 | 8da3ff18 | pbrook | mmio->region_offset[idx][1][i] = region_offset;
|
2875 | 3ee89922 | blueswir1 | } |
2876 | 4254fab8 | blueswir1 | } |
2877 | db7b5426 | blueswir1 | } |
2878 | db7b5426 | blueswir1 | |
2879 | db7b5426 | blueswir1 | return 0; |
2880 | db7b5426 | blueswir1 | } |
2881 | db7b5426 | blueswir1 | |
2882 | c227f099 | Anthony Liguori | static void *subpage_init (target_phys_addr_t base, ram_addr_t *phys, |
2883 | c227f099 | Anthony Liguori | ram_addr_t orig_memory, ram_addr_t region_offset) |
2884 | db7b5426 | blueswir1 | { |
2885 | c227f099 | Anthony Liguori | subpage_t *mmio; |
2886 | db7b5426 | blueswir1 | int subpage_memory;
|
2887 | db7b5426 | blueswir1 | |
2888 | c227f099 | Anthony Liguori | mmio = qemu_mallocz(sizeof(subpage_t));
|
2889 | 1eec614b | aliguori | |
2890 | 1eec614b | aliguori | mmio->base = base; |
2891 | 1eed09cb | Avi Kivity | subpage_memory = cpu_register_io_memory(subpage_read, subpage_write, mmio); |
2892 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2893 | 1eec614b | aliguori | printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__, |
2894 | 1eec614b | aliguori | mmio, base, TARGET_PAGE_SIZE, subpage_memory); |
2895 | db7b5426 | blueswir1 | #endif
|
2896 | 1eec614b | aliguori | *phys = subpage_memory | IO_MEM_SUBPAGE; |
2897 | 1eec614b | aliguori | subpage_register(mmio, 0, TARGET_PAGE_SIZE - 1, orig_memory, |
2898 | 8da3ff18 | pbrook | region_offset); |
2899 | db7b5426 | blueswir1 | |
2900 | db7b5426 | blueswir1 | return mmio;
|
2901 | db7b5426 | blueswir1 | } |
2902 | db7b5426 | blueswir1 | |
2903 | 88715657 | aliguori | static int get_free_io_mem_idx(void) |
2904 | 88715657 | aliguori | { |
2905 | 88715657 | aliguori | int i;
|
2906 | 88715657 | aliguori | |
2907 | 88715657 | aliguori | for (i = 0; i<IO_MEM_NB_ENTRIES; i++) |
2908 | 88715657 | aliguori | if (!io_mem_used[i]) {
|
2909 | 88715657 | aliguori | io_mem_used[i] = 1;
|
2910 | 88715657 | aliguori | return i;
|
2911 | 88715657 | aliguori | } |
2912 | 88715657 | aliguori | |
2913 | 88715657 | aliguori | return -1; |
2914 | 88715657 | aliguori | } |
2915 | 88715657 | aliguori | |
2916 | 33417e70 | bellard | /* mem_read and mem_write are arrays of functions containing the
|
2917 | 33417e70 | bellard | function to access byte (index 0), word (index 1) and dword (index
|
2918 | 0b4e6e3e | Paul Brook | 2). Functions can be omitted with a NULL function pointer.
|
2919 | 3ee89922 | blueswir1 | If io_index is non zero, the corresponding io zone is
|
2920 | 4254fab8 | blueswir1 | modified. If it is zero, a new io zone is allocated. The return
|
2921 | 4254fab8 | blueswir1 | value can be used with cpu_register_physical_memory(). (-1) is
|
2922 | 4254fab8 | blueswir1 | returned if error. */
|
2923 | 1eed09cb | Avi Kivity | static int cpu_register_io_memory_fixed(int io_index, |
2924 | d60efc6b | Blue Swirl | CPUReadMemoryFunc * const *mem_read,
|
2925 | d60efc6b | Blue Swirl | CPUWriteMemoryFunc * const *mem_write,
|
2926 | 1eed09cb | Avi Kivity | void *opaque)
|
2927 | 33417e70 | bellard | { |
2928 | 4254fab8 | blueswir1 | int i, subwidth = 0; |
2929 | 33417e70 | bellard | |
2930 | 33417e70 | bellard | if (io_index <= 0) { |
2931 | 88715657 | aliguori | io_index = get_free_io_mem_idx(); |
2932 | 88715657 | aliguori | if (io_index == -1) |
2933 | 88715657 | aliguori | return io_index;
|
2934 | 33417e70 | bellard | } else {
|
2935 | 1eed09cb | Avi Kivity | io_index >>= IO_MEM_SHIFT; |
2936 | 33417e70 | bellard | if (io_index >= IO_MEM_NB_ENTRIES)
|
2937 | 33417e70 | bellard | return -1; |
2938 | 33417e70 | bellard | } |
2939 | b5ff1b31 | bellard | |
2940 | 33417e70 | bellard | for(i = 0;i < 3; i++) { |
2941 | 4254fab8 | blueswir1 | if (!mem_read[i] || !mem_write[i])
|
2942 | 4254fab8 | blueswir1 | subwidth = IO_MEM_SUBWIDTH; |
2943 | 33417e70 | bellard | io_mem_read[io_index][i] = mem_read[i]; |
2944 | 33417e70 | bellard | io_mem_write[io_index][i] = mem_write[i]; |
2945 | 33417e70 | bellard | } |
2946 | a4193c8a | bellard | io_mem_opaque[io_index] = opaque; |
2947 | 4254fab8 | blueswir1 | return (io_index << IO_MEM_SHIFT) | subwidth;
|
2948 | 33417e70 | bellard | } |
2949 | 61382a50 | bellard | |
2950 | d60efc6b | Blue Swirl | int cpu_register_io_memory(CPUReadMemoryFunc * const *mem_read, |
2951 | d60efc6b | Blue Swirl | CPUWriteMemoryFunc * const *mem_write,
|
2952 | 1eed09cb | Avi Kivity | void *opaque)
|
2953 | 1eed09cb | Avi Kivity | { |
2954 | 1eed09cb | Avi Kivity | return cpu_register_io_memory_fixed(0, mem_read, mem_write, opaque); |
2955 | 1eed09cb | Avi Kivity | } |
2956 | 1eed09cb | Avi Kivity | |
2957 | 88715657 | aliguori | void cpu_unregister_io_memory(int io_table_address) |
2958 | 88715657 | aliguori | { |
2959 | 88715657 | aliguori | int i;
|
2960 | 88715657 | aliguori | int io_index = io_table_address >> IO_MEM_SHIFT;
|
2961 | 88715657 | aliguori | |
2962 | 88715657 | aliguori | for (i=0;i < 3; i++) { |
2963 | 88715657 | aliguori | io_mem_read[io_index][i] = unassigned_mem_read[i]; |
2964 | 88715657 | aliguori | io_mem_write[io_index][i] = unassigned_mem_write[i]; |
2965 | 88715657 | aliguori | } |
2966 | 88715657 | aliguori | io_mem_opaque[io_index] = NULL;
|
2967 | 88715657 | aliguori | io_mem_used[io_index] = 0;
|
2968 | 88715657 | aliguori | } |
2969 | 88715657 | aliguori | |
2970 | e9179ce1 | Avi Kivity | static void io_mem_init(void) |
2971 | e9179ce1 | Avi Kivity | { |
2972 | e9179ce1 | Avi Kivity | int i;
|
2973 | e9179ce1 | Avi Kivity | |
2974 | e9179ce1 | Avi Kivity | cpu_register_io_memory_fixed(IO_MEM_ROM, error_mem_read, unassigned_mem_write, NULL);
|
2975 | e9179ce1 | Avi Kivity | cpu_register_io_memory_fixed(IO_MEM_UNASSIGNED, unassigned_mem_read, unassigned_mem_write, NULL);
|
2976 | e9179ce1 | Avi Kivity | cpu_register_io_memory_fixed(IO_MEM_NOTDIRTY, error_mem_read, notdirty_mem_write, NULL);
|
2977 | e9179ce1 | Avi Kivity | for (i=0; i<5; i++) |
2978 | e9179ce1 | Avi Kivity | io_mem_used[i] = 1;
|
2979 | e9179ce1 | Avi Kivity | |
2980 | e9179ce1 | Avi Kivity | io_mem_watch = cpu_register_io_memory(watch_mem_read, |
2981 | e9179ce1 | Avi Kivity | watch_mem_write, NULL);
|
2982 | e9179ce1 | Avi Kivity | } |
2983 | e9179ce1 | Avi Kivity | |
2984 | e2eef170 | pbrook | #endif /* !defined(CONFIG_USER_ONLY) */ |
2985 | e2eef170 | pbrook | |
2986 | 13eb76e0 | bellard | /* physical memory access (slow version, mainly for debug) */
|
2987 | 13eb76e0 | bellard | #if defined(CONFIG_USER_ONLY)
|
2988 | c227f099 | Anthony Liguori | void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
|
2989 | 13eb76e0 | bellard | int len, int is_write) |
2990 | 13eb76e0 | bellard | { |
2991 | 13eb76e0 | bellard | int l, flags;
|
2992 | 13eb76e0 | bellard | target_ulong page; |
2993 | 53a5960a | pbrook | void * p;
|
2994 | 13eb76e0 | bellard | |
2995 | 13eb76e0 | bellard | while (len > 0) { |
2996 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
2997 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
2998 | 13eb76e0 | bellard | if (l > len)
|
2999 | 13eb76e0 | bellard | l = len; |
3000 | 13eb76e0 | bellard | flags = page_get_flags(page); |
3001 | 13eb76e0 | bellard | if (!(flags & PAGE_VALID))
|
3002 | 13eb76e0 | bellard | return;
|
3003 | 13eb76e0 | bellard | if (is_write) {
|
3004 | 13eb76e0 | bellard | if (!(flags & PAGE_WRITE))
|
3005 | 13eb76e0 | bellard | return;
|
3006 | 579a97f7 | bellard | /* XXX: this code should not depend on lock_user */
|
3007 | 72fb7daa | aurel32 | if (!(p = lock_user(VERIFY_WRITE, addr, l, 0))) |
3008 | 579a97f7 | bellard | /* FIXME - should this return an error rather than just fail? */
|
3009 | 579a97f7 | bellard | return;
|
3010 | 72fb7daa | aurel32 | memcpy(p, buf, l); |
3011 | 72fb7daa | aurel32 | unlock_user(p, addr, l); |
3012 | 13eb76e0 | bellard | } else {
|
3013 | 13eb76e0 | bellard | if (!(flags & PAGE_READ))
|
3014 | 13eb76e0 | bellard | return;
|
3015 | 579a97f7 | bellard | /* XXX: this code should not depend on lock_user */
|
3016 | 72fb7daa | aurel32 | if (!(p = lock_user(VERIFY_READ, addr, l, 1))) |
3017 | 579a97f7 | bellard | /* FIXME - should this return an error rather than just fail? */
|
3018 | 579a97f7 | bellard | return;
|
3019 | 72fb7daa | aurel32 | memcpy(buf, p, l); |
3020 | 5b257578 | aurel32 | unlock_user(p, addr, 0);
|
3021 | 13eb76e0 | bellard | } |
3022 | 13eb76e0 | bellard | len -= l; |
3023 | 13eb76e0 | bellard | buf += l; |
3024 | 13eb76e0 | bellard | addr += l; |
3025 | 13eb76e0 | bellard | } |
3026 | 13eb76e0 | bellard | } |
3027 | 8df1cd07 | bellard | |
3028 | 13eb76e0 | bellard | #else
|
3029 | c227f099 | Anthony Liguori | void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
|
3030 | 13eb76e0 | bellard | int len, int is_write) |
3031 | 13eb76e0 | bellard | { |
3032 | 13eb76e0 | bellard | int l, io_index;
|
3033 | 13eb76e0 | bellard | uint8_t *ptr; |
3034 | 13eb76e0 | bellard | uint32_t val; |
3035 | c227f099 | Anthony Liguori | target_phys_addr_t page; |
3036 | 2e12669a | bellard | unsigned long pd; |
3037 | 92e873b9 | bellard | PhysPageDesc *p; |
3038 | 3b46e624 | ths | |
3039 | 13eb76e0 | bellard | while (len > 0) { |
3040 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
3041 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
3042 | 13eb76e0 | bellard | if (l > len)
|
3043 | 13eb76e0 | bellard | l = len; |
3044 | 92e873b9 | bellard | p = phys_page_find(page >> TARGET_PAGE_BITS); |
3045 | 13eb76e0 | bellard | if (!p) {
|
3046 | 13eb76e0 | bellard | pd = IO_MEM_UNASSIGNED; |
3047 | 13eb76e0 | bellard | } else {
|
3048 | 13eb76e0 | bellard | pd = p->phys_offset; |
3049 | 13eb76e0 | bellard | } |
3050 | 3b46e624 | ths | |
3051 | 13eb76e0 | bellard | if (is_write) {
|
3052 | 3a7d929e | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
3053 | c227f099 | Anthony Liguori | target_phys_addr_t addr1 = addr; |
3054 | 13eb76e0 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3055 | 8da3ff18 | pbrook | if (p)
|
3056 | 6c2934db | aurel32 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3057 | 6a00d601 | bellard | /* XXX: could force cpu_single_env to NULL to avoid
|
3058 | 6a00d601 | bellard | potential bugs */
|
3059 | 6c2934db | aurel32 | if (l >= 4 && ((addr1 & 3) == 0)) { |
3060 | 1c213d19 | bellard | /* 32 bit write access */
|
3061 | c27004ec | bellard | val = ldl_p(buf); |
3062 | 6c2934db | aurel32 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr1, val);
|
3063 | 13eb76e0 | bellard | l = 4;
|
3064 | 6c2934db | aurel32 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
3065 | 1c213d19 | bellard | /* 16 bit write access */
|
3066 | c27004ec | bellard | val = lduw_p(buf); |
3067 | 6c2934db | aurel32 | io_mem_write[io_index][1](io_mem_opaque[io_index], addr1, val);
|
3068 | 13eb76e0 | bellard | l = 2;
|
3069 | 13eb76e0 | bellard | } else {
|
3070 | 1c213d19 | bellard | /* 8 bit write access */
|
3071 | c27004ec | bellard | val = ldub_p(buf); |
3072 | 6c2934db | aurel32 | io_mem_write[io_index][0](io_mem_opaque[io_index], addr1, val);
|
3073 | 13eb76e0 | bellard | l = 1;
|
3074 | 13eb76e0 | bellard | } |
3075 | 13eb76e0 | bellard | } else {
|
3076 | b448f2f3 | bellard | unsigned long addr1; |
3077 | b448f2f3 | bellard | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
3078 | 13eb76e0 | bellard | /* RAM case */
|
3079 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
3080 | 13eb76e0 | bellard | memcpy(ptr, buf, l); |
3081 | 3a7d929e | bellard | if (!cpu_physical_memory_is_dirty(addr1)) {
|
3082 | 3a7d929e | bellard | /* invalidate code */
|
3083 | 3a7d929e | bellard | tb_invalidate_phys_page_range(addr1, addr1 + l, 0);
|
3084 | 3a7d929e | bellard | /* set dirty bit */
|
3085 | 5fafdf24 | ths | phys_ram_dirty[addr1 >> TARGET_PAGE_BITS] |= |
3086 | f23db169 | bellard | (0xff & ~CODE_DIRTY_FLAG);
|
3087 | 3a7d929e | bellard | } |
3088 | 13eb76e0 | bellard | } |
3089 | 13eb76e0 | bellard | } else {
|
3090 | 5fafdf24 | ths | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
3091 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
3092 | c227f099 | Anthony Liguori | target_phys_addr_t addr1 = addr; |
3093 | 13eb76e0 | bellard | /* I/O case */
|
3094 | 13eb76e0 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3095 | 8da3ff18 | pbrook | if (p)
|
3096 | 6c2934db | aurel32 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3097 | 6c2934db | aurel32 | if (l >= 4 && ((addr1 & 3) == 0)) { |
3098 | 13eb76e0 | bellard | /* 32 bit read access */
|
3099 | 6c2934db | aurel32 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr1);
|
3100 | c27004ec | bellard | stl_p(buf, val); |
3101 | 13eb76e0 | bellard | l = 4;
|
3102 | 6c2934db | aurel32 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
3103 | 13eb76e0 | bellard | /* 16 bit read access */
|
3104 | 6c2934db | aurel32 | val = io_mem_read[io_index][1](io_mem_opaque[io_index], addr1);
|
3105 | c27004ec | bellard | stw_p(buf, val); |
3106 | 13eb76e0 | bellard | l = 2;
|
3107 | 13eb76e0 | bellard | } else {
|
3108 | 1c213d19 | bellard | /* 8 bit read access */
|
3109 | 6c2934db | aurel32 | val = io_mem_read[io_index][0](io_mem_opaque[io_index], addr1);
|
3110 | c27004ec | bellard | stb_p(buf, val); |
3111 | 13eb76e0 | bellard | l = 1;
|
3112 | 13eb76e0 | bellard | } |
3113 | 13eb76e0 | bellard | } else {
|
3114 | 13eb76e0 | bellard | /* RAM case */
|
3115 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
3116 | 13eb76e0 | bellard | (addr & ~TARGET_PAGE_MASK); |
3117 | 13eb76e0 | bellard | memcpy(buf, ptr, l); |
3118 | 13eb76e0 | bellard | } |
3119 | 13eb76e0 | bellard | } |
3120 | 13eb76e0 | bellard | len -= l; |
3121 | 13eb76e0 | bellard | buf += l; |
3122 | 13eb76e0 | bellard | addr += l; |
3123 | 13eb76e0 | bellard | } |
3124 | 13eb76e0 | bellard | } |
3125 | 8df1cd07 | bellard | |
3126 | d0ecd2aa | bellard | /* used for ROM loading : can write in RAM and ROM */
|
3127 | c227f099 | Anthony Liguori | void cpu_physical_memory_write_rom(target_phys_addr_t addr,
|
3128 | d0ecd2aa | bellard | const uint8_t *buf, int len) |
3129 | d0ecd2aa | bellard | { |
3130 | d0ecd2aa | bellard | int l;
|
3131 | d0ecd2aa | bellard | uint8_t *ptr; |
3132 | c227f099 | Anthony Liguori | target_phys_addr_t page; |
3133 | d0ecd2aa | bellard | unsigned long pd; |
3134 | d0ecd2aa | bellard | PhysPageDesc *p; |
3135 | 3b46e624 | ths | |
3136 | d0ecd2aa | bellard | while (len > 0) { |
3137 | d0ecd2aa | bellard | page = addr & TARGET_PAGE_MASK; |
3138 | d0ecd2aa | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
3139 | d0ecd2aa | bellard | if (l > len)
|
3140 | d0ecd2aa | bellard | l = len; |
3141 | d0ecd2aa | bellard | p = phys_page_find(page >> TARGET_PAGE_BITS); |
3142 | d0ecd2aa | bellard | if (!p) {
|
3143 | d0ecd2aa | bellard | pd = IO_MEM_UNASSIGNED; |
3144 | d0ecd2aa | bellard | } else {
|
3145 | d0ecd2aa | bellard | pd = p->phys_offset; |
3146 | d0ecd2aa | bellard | } |
3147 | 3b46e624 | ths | |
3148 | d0ecd2aa | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM &&
|
3149 | 2a4188a3 | bellard | (pd & ~TARGET_PAGE_MASK) != IO_MEM_ROM && |
3150 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
3151 | d0ecd2aa | bellard | /* do nothing */
|
3152 | d0ecd2aa | bellard | } else {
|
3153 | d0ecd2aa | bellard | unsigned long addr1; |
3154 | d0ecd2aa | bellard | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
3155 | d0ecd2aa | bellard | /* ROM/RAM case */
|
3156 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
3157 | d0ecd2aa | bellard | memcpy(ptr, buf, l); |
3158 | d0ecd2aa | bellard | } |
3159 | d0ecd2aa | bellard | len -= l; |
3160 | d0ecd2aa | bellard | buf += l; |
3161 | d0ecd2aa | bellard | addr += l; |
3162 | d0ecd2aa | bellard | } |
3163 | d0ecd2aa | bellard | } |
3164 | d0ecd2aa | bellard | |
3165 | 6d16c2f8 | aliguori | typedef struct { |
3166 | 6d16c2f8 | aliguori | void *buffer;
|
3167 | c227f099 | Anthony Liguori | target_phys_addr_t addr; |
3168 | c227f099 | Anthony Liguori | target_phys_addr_t len; |
3169 | 6d16c2f8 | aliguori | } BounceBuffer; |
3170 | 6d16c2f8 | aliguori | |
3171 | 6d16c2f8 | aliguori | static BounceBuffer bounce;
|
3172 | 6d16c2f8 | aliguori | |
3173 | ba223c29 | aliguori | typedef struct MapClient { |
3174 | ba223c29 | aliguori | void *opaque;
|
3175 | ba223c29 | aliguori | void (*callback)(void *opaque); |
3176 | 72cf2d4f | Blue Swirl | QLIST_ENTRY(MapClient) link; |
3177 | ba223c29 | aliguori | } MapClient; |
3178 | ba223c29 | aliguori | |
3179 | 72cf2d4f | Blue Swirl | static QLIST_HEAD(map_client_list, MapClient) map_client_list
|
3180 | 72cf2d4f | Blue Swirl | = QLIST_HEAD_INITIALIZER(map_client_list); |
3181 | ba223c29 | aliguori | |
3182 | ba223c29 | aliguori | void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque)) |
3183 | ba223c29 | aliguori | { |
3184 | ba223c29 | aliguori | MapClient *client = qemu_malloc(sizeof(*client));
|
3185 | ba223c29 | aliguori | |
3186 | ba223c29 | aliguori | client->opaque = opaque; |
3187 | ba223c29 | aliguori | client->callback = callback; |
3188 | 72cf2d4f | Blue Swirl | QLIST_INSERT_HEAD(&map_client_list, client, link); |
3189 | ba223c29 | aliguori | return client;
|
3190 | ba223c29 | aliguori | } |
3191 | ba223c29 | aliguori | |
3192 | ba223c29 | aliguori | void cpu_unregister_map_client(void *_client) |
3193 | ba223c29 | aliguori | { |
3194 | ba223c29 | aliguori | MapClient *client = (MapClient *)_client; |
3195 | ba223c29 | aliguori | |
3196 | 72cf2d4f | Blue Swirl | QLIST_REMOVE(client, link); |
3197 | 34d5e948 | Isaku Yamahata | qemu_free(client); |
3198 | ba223c29 | aliguori | } |
3199 | ba223c29 | aliguori | |
3200 | ba223c29 | aliguori | static void cpu_notify_map_clients(void) |
3201 | ba223c29 | aliguori | { |
3202 | ba223c29 | aliguori | MapClient *client; |
3203 | ba223c29 | aliguori | |
3204 | 72cf2d4f | Blue Swirl | while (!QLIST_EMPTY(&map_client_list)) {
|
3205 | 72cf2d4f | Blue Swirl | client = QLIST_FIRST(&map_client_list); |
3206 | ba223c29 | aliguori | client->callback(client->opaque); |
3207 | 34d5e948 | Isaku Yamahata | cpu_unregister_map_client(client); |
3208 | ba223c29 | aliguori | } |
3209 | ba223c29 | aliguori | } |
3210 | ba223c29 | aliguori | |
3211 | 6d16c2f8 | aliguori | /* Map a physical memory region into a host virtual address.
|
3212 | 6d16c2f8 | aliguori | * May map a subset of the requested range, given by and returned in *plen.
|
3213 | 6d16c2f8 | aliguori | * May return NULL if resources needed to perform the mapping are exhausted.
|
3214 | 6d16c2f8 | aliguori | * Use only for reads OR writes - not for read-modify-write operations.
|
3215 | ba223c29 | aliguori | * Use cpu_register_map_client() to know when retrying the map operation is
|
3216 | ba223c29 | aliguori | * likely to succeed.
|
3217 | 6d16c2f8 | aliguori | */
|
3218 | c227f099 | Anthony Liguori | void *cpu_physical_memory_map(target_phys_addr_t addr,
|
3219 | c227f099 | Anthony Liguori | target_phys_addr_t *plen, |
3220 | 6d16c2f8 | aliguori | int is_write)
|
3221 | 6d16c2f8 | aliguori | { |
3222 | c227f099 | Anthony Liguori | target_phys_addr_t len = *plen; |
3223 | c227f099 | Anthony Liguori | target_phys_addr_t done = 0;
|
3224 | 6d16c2f8 | aliguori | int l;
|
3225 | 6d16c2f8 | aliguori | uint8_t *ret = NULL;
|
3226 | 6d16c2f8 | aliguori | uint8_t *ptr; |
3227 | c227f099 | Anthony Liguori | target_phys_addr_t page; |
3228 | 6d16c2f8 | aliguori | unsigned long pd; |
3229 | 6d16c2f8 | aliguori | PhysPageDesc *p; |
3230 | 6d16c2f8 | aliguori | unsigned long addr1; |
3231 | 6d16c2f8 | aliguori | |
3232 | 6d16c2f8 | aliguori | while (len > 0) { |
3233 | 6d16c2f8 | aliguori | page = addr & TARGET_PAGE_MASK; |
3234 | 6d16c2f8 | aliguori | l = (page + TARGET_PAGE_SIZE) - addr; |
3235 | 6d16c2f8 | aliguori | if (l > len)
|
3236 | 6d16c2f8 | aliguori | l = len; |
3237 | 6d16c2f8 | aliguori | p = phys_page_find(page >> TARGET_PAGE_BITS); |
3238 | 6d16c2f8 | aliguori | if (!p) {
|
3239 | 6d16c2f8 | aliguori | pd = IO_MEM_UNASSIGNED; |
3240 | 6d16c2f8 | aliguori | } else {
|
3241 | 6d16c2f8 | aliguori | pd = p->phys_offset; |
3242 | 6d16c2f8 | aliguori | } |
3243 | 6d16c2f8 | aliguori | |
3244 | 6d16c2f8 | aliguori | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
3245 | 6d16c2f8 | aliguori | if (done || bounce.buffer) {
|
3246 | 6d16c2f8 | aliguori | break;
|
3247 | 6d16c2f8 | aliguori | } |
3248 | 6d16c2f8 | aliguori | bounce.buffer = qemu_memalign(TARGET_PAGE_SIZE, TARGET_PAGE_SIZE); |
3249 | 6d16c2f8 | aliguori | bounce.addr = addr; |
3250 | 6d16c2f8 | aliguori | bounce.len = l; |
3251 | 6d16c2f8 | aliguori | if (!is_write) {
|
3252 | 6d16c2f8 | aliguori | cpu_physical_memory_rw(addr, bounce.buffer, l, 0);
|
3253 | 6d16c2f8 | aliguori | } |
3254 | 6d16c2f8 | aliguori | ptr = bounce.buffer; |
3255 | 6d16c2f8 | aliguori | } else {
|
3256 | 6d16c2f8 | aliguori | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
3257 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
3258 | 6d16c2f8 | aliguori | } |
3259 | 6d16c2f8 | aliguori | if (!done) {
|
3260 | 6d16c2f8 | aliguori | ret = ptr; |
3261 | 6d16c2f8 | aliguori | } else if (ret + done != ptr) { |
3262 | 6d16c2f8 | aliguori | break;
|
3263 | 6d16c2f8 | aliguori | } |
3264 | 6d16c2f8 | aliguori | |
3265 | 6d16c2f8 | aliguori | len -= l; |
3266 | 6d16c2f8 | aliguori | addr += l; |
3267 | 6d16c2f8 | aliguori | done += l; |
3268 | 6d16c2f8 | aliguori | } |
3269 | 6d16c2f8 | aliguori | *plen = done; |
3270 | 6d16c2f8 | aliguori | return ret;
|
3271 | 6d16c2f8 | aliguori | } |
3272 | 6d16c2f8 | aliguori | |
3273 | 6d16c2f8 | aliguori | /* Unmaps a memory region previously mapped by cpu_physical_memory_map().
|
3274 | 6d16c2f8 | aliguori | * Will also mark the memory as dirty if is_write == 1. access_len gives
|
3275 | 6d16c2f8 | aliguori | * the amount of memory that was actually read or written by the caller.
|
3276 | 6d16c2f8 | aliguori | */
|
3277 | c227f099 | Anthony Liguori | void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len, |
3278 | c227f099 | Anthony Liguori | int is_write, target_phys_addr_t access_len)
|
3279 | 6d16c2f8 | aliguori | { |
3280 | 6d16c2f8 | aliguori | if (buffer != bounce.buffer) {
|
3281 | 6d16c2f8 | aliguori | if (is_write) {
|
3282 | c227f099 | Anthony Liguori | ram_addr_t addr1 = qemu_ram_addr_from_host(buffer); |
3283 | 6d16c2f8 | aliguori | while (access_len) {
|
3284 | 6d16c2f8 | aliguori | unsigned l;
|
3285 | 6d16c2f8 | aliguori | l = TARGET_PAGE_SIZE; |
3286 | 6d16c2f8 | aliguori | if (l > access_len)
|
3287 | 6d16c2f8 | aliguori | l = access_len; |
3288 | 6d16c2f8 | aliguori | if (!cpu_physical_memory_is_dirty(addr1)) {
|
3289 | 6d16c2f8 | aliguori | /* invalidate code */
|
3290 | 6d16c2f8 | aliguori | tb_invalidate_phys_page_range(addr1, addr1 + l, 0);
|
3291 | 6d16c2f8 | aliguori | /* set dirty bit */
|
3292 | 6d16c2f8 | aliguori | phys_ram_dirty[addr1 >> TARGET_PAGE_BITS] |= |
3293 | 6d16c2f8 | aliguori | (0xff & ~CODE_DIRTY_FLAG);
|
3294 | 6d16c2f8 | aliguori | } |
3295 | 6d16c2f8 | aliguori | addr1 += l; |
3296 | 6d16c2f8 | aliguori | access_len -= l; |
3297 | 6d16c2f8 | aliguori | } |
3298 | 6d16c2f8 | aliguori | } |
3299 | 6d16c2f8 | aliguori | return;
|
3300 | 6d16c2f8 | aliguori | } |
3301 | 6d16c2f8 | aliguori | if (is_write) {
|
3302 | 6d16c2f8 | aliguori | cpu_physical_memory_write(bounce.addr, bounce.buffer, access_len); |
3303 | 6d16c2f8 | aliguori | } |
3304 | 6d16c2f8 | aliguori | qemu_free(bounce.buffer); |
3305 | 6d16c2f8 | aliguori | bounce.buffer = NULL;
|
3306 | ba223c29 | aliguori | cpu_notify_map_clients(); |
3307 | 6d16c2f8 | aliguori | } |
3308 | d0ecd2aa | bellard | |
3309 | 8df1cd07 | bellard | /* warning: addr must be aligned */
|
3310 | c227f099 | Anthony Liguori | uint32_t ldl_phys(target_phys_addr_t addr) |
3311 | 8df1cd07 | bellard | { |
3312 | 8df1cd07 | bellard | int io_index;
|
3313 | 8df1cd07 | bellard | uint8_t *ptr; |
3314 | 8df1cd07 | bellard | uint32_t val; |
3315 | 8df1cd07 | bellard | unsigned long pd; |
3316 | 8df1cd07 | bellard | PhysPageDesc *p; |
3317 | 8df1cd07 | bellard | |
3318 | 8df1cd07 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
3319 | 8df1cd07 | bellard | if (!p) {
|
3320 | 8df1cd07 | bellard | pd = IO_MEM_UNASSIGNED; |
3321 | 8df1cd07 | bellard | } else {
|
3322 | 8df1cd07 | bellard | pd = p->phys_offset; |
3323 | 8df1cd07 | bellard | } |
3324 | 3b46e624 | ths | |
3325 | 5fafdf24 | ths | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
3326 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
3327 | 8df1cd07 | bellard | /* I/O case */
|
3328 | 8df1cd07 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3329 | 8da3ff18 | pbrook | if (p)
|
3330 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3331 | 8df1cd07 | bellard | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr);
|
3332 | 8df1cd07 | bellard | } else {
|
3333 | 8df1cd07 | bellard | /* RAM case */
|
3334 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
3335 | 8df1cd07 | bellard | (addr & ~TARGET_PAGE_MASK); |
3336 | 8df1cd07 | bellard | val = ldl_p(ptr); |
3337 | 8df1cd07 | bellard | } |
3338 | 8df1cd07 | bellard | return val;
|
3339 | 8df1cd07 | bellard | } |
3340 | 8df1cd07 | bellard | |
3341 | 84b7b8e7 | bellard | /* warning: addr must be aligned */
|
3342 | c227f099 | Anthony Liguori | uint64_t ldq_phys(target_phys_addr_t addr) |
3343 | 84b7b8e7 | bellard | { |
3344 | 84b7b8e7 | bellard | int io_index;
|
3345 | 84b7b8e7 | bellard | uint8_t *ptr; |
3346 | 84b7b8e7 | bellard | uint64_t val; |
3347 | 84b7b8e7 | bellard | unsigned long pd; |
3348 | 84b7b8e7 | bellard | PhysPageDesc *p; |
3349 | 84b7b8e7 | bellard | |
3350 | 84b7b8e7 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
3351 | 84b7b8e7 | bellard | if (!p) {
|
3352 | 84b7b8e7 | bellard | pd = IO_MEM_UNASSIGNED; |
3353 | 84b7b8e7 | bellard | } else {
|
3354 | 84b7b8e7 | bellard | pd = p->phys_offset; |
3355 | 84b7b8e7 | bellard | } |
3356 | 3b46e624 | ths | |
3357 | 2a4188a3 | bellard | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
3358 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
3359 | 84b7b8e7 | bellard | /* I/O case */
|
3360 | 84b7b8e7 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3361 | 8da3ff18 | pbrook | if (p)
|
3362 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3363 | 84b7b8e7 | bellard | #ifdef TARGET_WORDS_BIGENDIAN
|
3364 | 84b7b8e7 | bellard | val = (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr) << 32; |
3365 | 84b7b8e7 | bellard | val |= io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4); |
3366 | 84b7b8e7 | bellard | #else
|
3367 | 84b7b8e7 | bellard | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr);
|
3368 | 84b7b8e7 | bellard | val |= (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4) << 32; |
3369 | 84b7b8e7 | bellard | #endif
|
3370 | 84b7b8e7 | bellard | } else {
|
3371 | 84b7b8e7 | bellard | /* RAM case */
|
3372 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
3373 | 84b7b8e7 | bellard | (addr & ~TARGET_PAGE_MASK); |
3374 | 84b7b8e7 | bellard | val = ldq_p(ptr); |
3375 | 84b7b8e7 | bellard | } |
3376 | 84b7b8e7 | bellard | return val;
|
3377 | 84b7b8e7 | bellard | } |
3378 | 84b7b8e7 | bellard | |
3379 | aab33094 | bellard | /* XXX: optimize */
|
3380 | c227f099 | Anthony Liguori | uint32_t ldub_phys(target_phys_addr_t addr) |
3381 | aab33094 | bellard | { |
3382 | aab33094 | bellard | uint8_t val; |
3383 | aab33094 | bellard | cpu_physical_memory_read(addr, &val, 1);
|
3384 | aab33094 | bellard | return val;
|
3385 | aab33094 | bellard | } |
3386 | aab33094 | bellard | |
3387 | aab33094 | bellard | /* XXX: optimize */
|
3388 | c227f099 | Anthony Liguori | uint32_t lduw_phys(target_phys_addr_t addr) |
3389 | aab33094 | bellard | { |
3390 | aab33094 | bellard | uint16_t val; |
3391 | aab33094 | bellard | cpu_physical_memory_read(addr, (uint8_t *)&val, 2);
|
3392 | aab33094 | bellard | return tswap16(val);
|
3393 | aab33094 | bellard | } |
3394 | aab33094 | bellard | |
3395 | 8df1cd07 | bellard | /* warning: addr must be aligned. The ram page is not masked as dirty
|
3396 | 8df1cd07 | bellard | and the code inside is not invalidated. It is useful if the dirty
|
3397 | 8df1cd07 | bellard | bits are used to track modified PTEs */
|
3398 | c227f099 | Anthony Liguori | void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val)
|
3399 | 8df1cd07 | bellard | { |
3400 | 8df1cd07 | bellard | int io_index;
|
3401 | 8df1cd07 | bellard | uint8_t *ptr; |
3402 | 8df1cd07 | bellard | unsigned long pd; |
3403 | 8df1cd07 | bellard | PhysPageDesc *p; |
3404 | 8df1cd07 | bellard | |
3405 | 8df1cd07 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
3406 | 8df1cd07 | bellard | if (!p) {
|
3407 | 8df1cd07 | bellard | pd = IO_MEM_UNASSIGNED; |
3408 | 8df1cd07 | bellard | } else {
|
3409 | 8df1cd07 | bellard | pd = p->phys_offset; |
3410 | 8df1cd07 | bellard | } |
3411 | 3b46e624 | ths | |
3412 | 3a7d929e | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
3413 | 8df1cd07 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3414 | 8da3ff18 | pbrook | if (p)
|
3415 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3416 | 8df1cd07 | bellard | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
|
3417 | 8df1cd07 | bellard | } else {
|
3418 | 74576198 | aliguori | unsigned long addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
3419 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
3420 | 8df1cd07 | bellard | stl_p(ptr, val); |
3421 | 74576198 | aliguori | |
3422 | 74576198 | aliguori | if (unlikely(in_migration)) {
|
3423 | 74576198 | aliguori | if (!cpu_physical_memory_is_dirty(addr1)) {
|
3424 | 74576198 | aliguori | /* invalidate code */
|
3425 | 74576198 | aliguori | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
3426 | 74576198 | aliguori | /* set dirty bit */
|
3427 | 74576198 | aliguori | phys_ram_dirty[addr1 >> TARGET_PAGE_BITS] |= |
3428 | 74576198 | aliguori | (0xff & ~CODE_DIRTY_FLAG);
|
3429 | 74576198 | aliguori | } |
3430 | 74576198 | aliguori | } |
3431 | 8df1cd07 | bellard | } |
3432 | 8df1cd07 | bellard | } |
3433 | 8df1cd07 | bellard | |
3434 | c227f099 | Anthony Liguori | void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val)
|
3435 | bc98a7ef | j_mayer | { |
3436 | bc98a7ef | j_mayer | int io_index;
|
3437 | bc98a7ef | j_mayer | uint8_t *ptr; |
3438 | bc98a7ef | j_mayer | unsigned long pd; |
3439 | bc98a7ef | j_mayer | PhysPageDesc *p; |
3440 | bc98a7ef | j_mayer | |
3441 | bc98a7ef | j_mayer | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
3442 | bc98a7ef | j_mayer | if (!p) {
|
3443 | bc98a7ef | j_mayer | pd = IO_MEM_UNASSIGNED; |
3444 | bc98a7ef | j_mayer | } else {
|
3445 | bc98a7ef | j_mayer | pd = p->phys_offset; |
3446 | bc98a7ef | j_mayer | } |
3447 | 3b46e624 | ths | |
3448 | bc98a7ef | j_mayer | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
3449 | bc98a7ef | j_mayer | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3450 | 8da3ff18 | pbrook | if (p)
|
3451 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3452 | bc98a7ef | j_mayer | #ifdef TARGET_WORDS_BIGENDIAN
|
3453 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val >> 32); |
3454 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val); |
3455 | bc98a7ef | j_mayer | #else
|
3456 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
|
3457 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val >> 32); |
3458 | bc98a7ef | j_mayer | #endif
|
3459 | bc98a7ef | j_mayer | } else {
|
3460 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
3461 | bc98a7ef | j_mayer | (addr & ~TARGET_PAGE_MASK); |
3462 | bc98a7ef | j_mayer | stq_p(ptr, val); |
3463 | bc98a7ef | j_mayer | } |
3464 | bc98a7ef | j_mayer | } |
3465 | bc98a7ef | j_mayer | |
3466 | 8df1cd07 | bellard | /* warning: addr must be aligned */
|
3467 | c227f099 | Anthony Liguori | void stl_phys(target_phys_addr_t addr, uint32_t val)
|
3468 | 8df1cd07 | bellard | { |
3469 | 8df1cd07 | bellard | int io_index;
|
3470 | 8df1cd07 | bellard | uint8_t *ptr; |
3471 | 8df1cd07 | bellard | unsigned long pd; |
3472 | 8df1cd07 | bellard | PhysPageDesc *p; |
3473 | 8df1cd07 | bellard | |
3474 | 8df1cd07 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
3475 | 8df1cd07 | bellard | if (!p) {
|
3476 | 8df1cd07 | bellard | pd = IO_MEM_UNASSIGNED; |
3477 | 8df1cd07 | bellard | } else {
|
3478 | 8df1cd07 | bellard | pd = p->phys_offset; |
3479 | 8df1cd07 | bellard | } |
3480 | 3b46e624 | ths | |
3481 | 3a7d929e | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
3482 | 8df1cd07 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3483 | 8da3ff18 | pbrook | if (p)
|
3484 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3485 | 8df1cd07 | bellard | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
|
3486 | 8df1cd07 | bellard | } else {
|
3487 | 8df1cd07 | bellard | unsigned long addr1; |
3488 | 8df1cd07 | bellard | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
3489 | 8df1cd07 | bellard | /* RAM case */
|
3490 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
3491 | 8df1cd07 | bellard | stl_p(ptr, val); |
3492 | 3a7d929e | bellard | if (!cpu_physical_memory_is_dirty(addr1)) {
|
3493 | 3a7d929e | bellard | /* invalidate code */
|
3494 | 3a7d929e | bellard | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
3495 | 3a7d929e | bellard | /* set dirty bit */
|
3496 | f23db169 | bellard | phys_ram_dirty[addr1 >> TARGET_PAGE_BITS] |= |
3497 | f23db169 | bellard | (0xff & ~CODE_DIRTY_FLAG);
|
3498 | 3a7d929e | bellard | } |
3499 | 8df1cd07 | bellard | } |
3500 | 8df1cd07 | bellard | } |
3501 | 8df1cd07 | bellard | |
3502 | aab33094 | bellard | /* XXX: optimize */
|
3503 | c227f099 | Anthony Liguori | void stb_phys(target_phys_addr_t addr, uint32_t val)
|
3504 | aab33094 | bellard | { |
3505 | aab33094 | bellard | uint8_t v = val; |
3506 | aab33094 | bellard | cpu_physical_memory_write(addr, &v, 1);
|
3507 | aab33094 | bellard | } |
3508 | aab33094 | bellard | |
3509 | aab33094 | bellard | /* XXX: optimize */
|
3510 | c227f099 | Anthony Liguori | void stw_phys(target_phys_addr_t addr, uint32_t val)
|
3511 | aab33094 | bellard | { |
3512 | aab33094 | bellard | uint16_t v = tswap16(val); |
3513 | aab33094 | bellard | cpu_physical_memory_write(addr, (const uint8_t *)&v, 2); |
3514 | aab33094 | bellard | } |
3515 | aab33094 | bellard | |
3516 | aab33094 | bellard | /* XXX: optimize */
|
3517 | c227f099 | Anthony Liguori | void stq_phys(target_phys_addr_t addr, uint64_t val)
|
3518 | aab33094 | bellard | { |
3519 | aab33094 | bellard | val = tswap64(val); |
3520 | aab33094 | bellard | cpu_physical_memory_write(addr, (const uint8_t *)&val, 8); |
3521 | aab33094 | bellard | } |
3522 | aab33094 | bellard | |
3523 | 13eb76e0 | bellard | #endif
|
3524 | 13eb76e0 | bellard | |
3525 | 5e2972fd | aliguori | /* virtual memory access for debug (includes writing to ROM) */
|
3526 | 5fafdf24 | ths | int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
|
3527 | b448f2f3 | bellard | uint8_t *buf, int len, int is_write) |
3528 | 13eb76e0 | bellard | { |
3529 | 13eb76e0 | bellard | int l;
|
3530 | c227f099 | Anthony Liguori | target_phys_addr_t phys_addr; |
3531 | 9b3c35e0 | j_mayer | target_ulong page; |
3532 | 13eb76e0 | bellard | |
3533 | 13eb76e0 | bellard | while (len > 0) { |
3534 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
3535 | 13eb76e0 | bellard | phys_addr = cpu_get_phys_page_debug(env, page); |
3536 | 13eb76e0 | bellard | /* if no physical page mapped, return an error */
|
3537 | 13eb76e0 | bellard | if (phys_addr == -1) |
3538 | 13eb76e0 | bellard | return -1; |
3539 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
3540 | 13eb76e0 | bellard | if (l > len)
|
3541 | 13eb76e0 | bellard | l = len; |
3542 | 5e2972fd | aliguori | phys_addr += (addr & ~TARGET_PAGE_MASK); |
3543 | 5e2972fd | aliguori | #if !defined(CONFIG_USER_ONLY)
|
3544 | 5e2972fd | aliguori | if (is_write)
|
3545 | 5e2972fd | aliguori | cpu_physical_memory_write_rom(phys_addr, buf, l); |
3546 | 5e2972fd | aliguori | else
|
3547 | 5e2972fd | aliguori | #endif
|
3548 | 5e2972fd | aliguori | cpu_physical_memory_rw(phys_addr, buf, l, is_write); |
3549 | 13eb76e0 | bellard | len -= l; |
3550 | 13eb76e0 | bellard | buf += l; |
3551 | 13eb76e0 | bellard | addr += l; |
3552 | 13eb76e0 | bellard | } |
3553 | 13eb76e0 | bellard | return 0; |
3554 | 13eb76e0 | bellard | } |
3555 | 13eb76e0 | bellard | |
3556 | 2e70f6ef | pbrook | /* in deterministic execution mode, instructions doing device I/Os
|
3557 | 2e70f6ef | pbrook | must be at the end of the TB */
|
3558 | 2e70f6ef | pbrook | void cpu_io_recompile(CPUState *env, void *retaddr) |
3559 | 2e70f6ef | pbrook | { |
3560 | 2e70f6ef | pbrook | TranslationBlock *tb; |
3561 | 2e70f6ef | pbrook | uint32_t n, cflags; |
3562 | 2e70f6ef | pbrook | target_ulong pc, cs_base; |
3563 | 2e70f6ef | pbrook | uint64_t flags; |
3564 | 2e70f6ef | pbrook | |
3565 | 2e70f6ef | pbrook | tb = tb_find_pc((unsigned long)retaddr); |
3566 | 2e70f6ef | pbrook | if (!tb) {
|
3567 | 2e70f6ef | pbrook | cpu_abort(env, "cpu_io_recompile: could not find TB for pc=%p",
|
3568 | 2e70f6ef | pbrook | retaddr); |
3569 | 2e70f6ef | pbrook | } |
3570 | 2e70f6ef | pbrook | n = env->icount_decr.u16.low + tb->icount; |
3571 | 2e70f6ef | pbrook | cpu_restore_state(tb, env, (unsigned long)retaddr, NULL); |
3572 | 2e70f6ef | pbrook | /* Calculate how many instructions had been executed before the fault
|
3573 | bf20dc07 | ths | occurred. */
|
3574 | 2e70f6ef | pbrook | n = n - env->icount_decr.u16.low; |
3575 | 2e70f6ef | pbrook | /* Generate a new TB ending on the I/O insn. */
|
3576 | 2e70f6ef | pbrook | n++; |
3577 | 2e70f6ef | pbrook | /* On MIPS and SH, delay slot instructions can only be restarted if
|
3578 | 2e70f6ef | pbrook | they were already the first instruction in the TB. If this is not
|
3579 | bf20dc07 | ths | the first instruction in a TB then re-execute the preceding
|
3580 | 2e70f6ef | pbrook | branch. */
|
3581 | 2e70f6ef | pbrook | #if defined(TARGET_MIPS)
|
3582 | 2e70f6ef | pbrook | if ((env->hflags & MIPS_HFLAG_BMASK) != 0 && n > 1) { |
3583 | 2e70f6ef | pbrook | env->active_tc.PC -= 4;
|
3584 | 2e70f6ef | pbrook | env->icount_decr.u16.low++; |
3585 | 2e70f6ef | pbrook | env->hflags &= ~MIPS_HFLAG_BMASK; |
3586 | 2e70f6ef | pbrook | } |
3587 | 2e70f6ef | pbrook | #elif defined(TARGET_SH4)
|
3588 | 2e70f6ef | pbrook | if ((env->flags & ((DELAY_SLOT | DELAY_SLOT_CONDITIONAL))) != 0 |
3589 | 2e70f6ef | pbrook | && n > 1) {
|
3590 | 2e70f6ef | pbrook | env->pc -= 2;
|
3591 | 2e70f6ef | pbrook | env->icount_decr.u16.low++; |
3592 | 2e70f6ef | pbrook | env->flags &= ~(DELAY_SLOT | DELAY_SLOT_CONDITIONAL); |
3593 | 2e70f6ef | pbrook | } |
3594 | 2e70f6ef | pbrook | #endif
|
3595 | 2e70f6ef | pbrook | /* This should never happen. */
|
3596 | 2e70f6ef | pbrook | if (n > CF_COUNT_MASK)
|
3597 | 2e70f6ef | pbrook | cpu_abort(env, "TB too big during recompile");
|
3598 | 2e70f6ef | pbrook | |
3599 | 2e70f6ef | pbrook | cflags = n | CF_LAST_IO; |
3600 | 2e70f6ef | pbrook | pc = tb->pc; |
3601 | 2e70f6ef | pbrook | cs_base = tb->cs_base; |
3602 | 2e70f6ef | pbrook | flags = tb->flags; |
3603 | 2e70f6ef | pbrook | tb_phys_invalidate(tb, -1);
|
3604 | 2e70f6ef | pbrook | /* FIXME: In theory this could raise an exception. In practice
|
3605 | 2e70f6ef | pbrook | we have already translated the block once so it's probably ok. */
|
3606 | 2e70f6ef | pbrook | tb_gen_code(env, pc, cs_base, flags, cflags); |
3607 | bf20dc07 | ths | /* TODO: If env->pc != tb->pc (i.e. the faulting instruction was not
|
3608 | 2e70f6ef | pbrook | the first in the TB) then we end up generating a whole new TB and
|
3609 | 2e70f6ef | pbrook | repeating the fault, which is horribly inefficient.
|
3610 | 2e70f6ef | pbrook | Better would be to execute just this insn uncached, or generate a
|
3611 | 2e70f6ef | pbrook | second new TB. */
|
3612 | 2e70f6ef | pbrook | cpu_resume_from_signal(env, NULL);
|
3613 | 2e70f6ef | pbrook | } |
3614 | 2e70f6ef | pbrook | |
3615 | e3db7226 | bellard | void dump_exec_info(FILE *f,
|
3616 | e3db7226 | bellard | int (*cpu_fprintf)(FILE *f, const char *fmt, ...)) |
3617 | e3db7226 | bellard | { |
3618 | e3db7226 | bellard | int i, target_code_size, max_target_code_size;
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3619 | e3db7226 | bellard | int direct_jmp_count, direct_jmp2_count, cross_page;
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3620 | e3db7226 | bellard | TranslationBlock *tb; |
3621 | 3b46e624 | ths | |
3622 | e3db7226 | bellard | target_code_size = 0;
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3623 | e3db7226 | bellard | max_target_code_size = 0;
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3624 | e3db7226 | bellard | cross_page = 0;
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3625 | e3db7226 | bellard | direct_jmp_count = 0;
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3626 | e3db7226 | bellard | direct_jmp2_count = 0;
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3627 | e3db7226 | bellard | for(i = 0; i < nb_tbs; i++) { |
3628 | e3db7226 | bellard | tb = &tbs[i]; |
3629 | e3db7226 | bellard | target_code_size += tb->size; |
3630 | e3db7226 | bellard | if (tb->size > max_target_code_size)
|
3631 | e3db7226 | bellard | max_target_code_size = tb->size; |
3632 | e3db7226 | bellard | if (tb->page_addr[1] != -1) |
3633 | e3db7226 | bellard | cross_page++; |
3634 | e3db7226 | bellard | if (tb->tb_next_offset[0] != 0xffff) { |
3635 | e3db7226 | bellard | direct_jmp_count++; |
3636 | e3db7226 | bellard | if (tb->tb_next_offset[1] != 0xffff) { |
3637 | e3db7226 | bellard | direct_jmp2_count++; |
3638 | e3db7226 | bellard | } |
3639 | e3db7226 | bellard | } |
3640 | e3db7226 | bellard | } |
3641 | e3db7226 | bellard | /* XXX: avoid using doubles ? */
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3642 | 57fec1fe | bellard | cpu_fprintf(f, "Translation buffer state:\n");
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3643 | 26a5f13b | bellard | cpu_fprintf(f, "gen code size %ld/%ld\n",
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3644 | 26a5f13b | bellard | code_gen_ptr - code_gen_buffer, code_gen_buffer_max_size); |
3645 | 26a5f13b | bellard | cpu_fprintf(f, "TB count %d/%d\n",
|
3646 | 26a5f13b | bellard | nb_tbs, code_gen_max_blocks); |
3647 | 5fafdf24 | ths | cpu_fprintf(f, "TB avg target size %d max=%d bytes\n",
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3648 | e3db7226 | bellard | nb_tbs ? target_code_size / nb_tbs : 0,
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3649 | e3db7226 | bellard | max_target_code_size); |
3650 | 5fafdf24 | ths | cpu_fprintf(f, "TB avg host size %d bytes (expansion ratio: %0.1f)\n",
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3651 | e3db7226 | bellard | nb_tbs ? (code_gen_ptr - code_gen_buffer) / nb_tbs : 0,
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3652 | e3db7226 | bellard | target_code_size ? (double) (code_gen_ptr - code_gen_buffer) / target_code_size : 0); |
3653 | 5fafdf24 | ths | cpu_fprintf(f, "cross page TB count %d (%d%%)\n",
|
3654 | 5fafdf24 | ths | cross_page, |
3655 | e3db7226 | bellard | nb_tbs ? (cross_page * 100) / nb_tbs : 0); |
3656 | e3db7226 | bellard | cpu_fprintf(f, "direct jump count %d (%d%%) (2 jumps=%d %d%%)\n",
|
3657 | 5fafdf24 | ths | direct_jmp_count, |
3658 | e3db7226 | bellard | nb_tbs ? (direct_jmp_count * 100) / nb_tbs : 0, |
3659 | e3db7226 | bellard | direct_jmp2_count, |
3660 | e3db7226 | bellard | nb_tbs ? (direct_jmp2_count * 100) / nb_tbs : 0); |
3661 | 57fec1fe | bellard | cpu_fprintf(f, "\nStatistics:\n");
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3662 | e3db7226 | bellard | cpu_fprintf(f, "TB flush count %d\n", tb_flush_count);
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3663 | e3db7226 | bellard | cpu_fprintf(f, "TB invalidate count %d\n", tb_phys_invalidate_count);
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3664 | e3db7226 | bellard | cpu_fprintf(f, "TLB flush count %d\n", tlb_flush_count);
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3665 | b67d9a52 | bellard | tcg_dump_info(f, cpu_fprintf); |
3666 | e3db7226 | bellard | } |
3667 | e3db7226 | bellard | |
3668 | 5fafdf24 | ths | #if !defined(CONFIG_USER_ONLY)
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3669 | 61382a50 | bellard | |
3670 | 61382a50 | bellard | #define MMUSUFFIX _cmmu
|
3671 | 61382a50 | bellard | #define GETPC() NULL |
3672 | 61382a50 | bellard | #define env cpu_single_env
|
3673 | b769d8fe | bellard | #define SOFTMMU_CODE_ACCESS
|
3674 | 61382a50 | bellard | |
3675 | 61382a50 | bellard | #define SHIFT 0 |
3676 | 61382a50 | bellard | #include "softmmu_template.h" |
3677 | 61382a50 | bellard | |
3678 | 61382a50 | bellard | #define SHIFT 1 |
3679 | 61382a50 | bellard | #include "softmmu_template.h" |
3680 | 61382a50 | bellard | |
3681 | 61382a50 | bellard | #define SHIFT 2 |
3682 | 61382a50 | bellard | #include "softmmu_template.h" |
3683 | 61382a50 | bellard | |
3684 | 61382a50 | bellard | #define SHIFT 3 |
3685 | 61382a50 | bellard | #include "softmmu_template.h" |
3686 | 61382a50 | bellard | |
3687 | 61382a50 | bellard | #undef env
|
3688 | 61382a50 | bellard | |
3689 | 61382a50 | bellard | #endif |