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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 | 54936004 | bellard | *
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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 | 54936004 | bellard | * License along with this library; if not, write to the Free Software
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18 | 54936004 | bellard | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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19 | 54936004 | bellard | */
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20 | 67b915a5 | bellard | #include "config.h" |
21 | d5a8f07c | bellard | #ifdef _WIN32
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22 | d5a8f07c | bellard | #include <windows.h> |
23 | d5a8f07c | bellard | #else
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24 | a98d49b1 | bellard | #include <sys/types.h> |
25 | d5a8f07c | bellard | #include <sys/mman.h> |
26 | d5a8f07c | bellard | #endif
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27 | 54936004 | bellard | #include <stdlib.h> |
28 | 54936004 | bellard | #include <stdio.h> |
29 | 54936004 | bellard | #include <stdarg.h> |
30 | 54936004 | bellard | #include <string.h> |
31 | 54936004 | bellard | #include <errno.h> |
32 | 54936004 | bellard | #include <unistd.h> |
33 | 54936004 | bellard | #include <inttypes.h> |
34 | 54936004 | bellard | |
35 | 6180a181 | bellard | #include "cpu.h" |
36 | 6180a181 | bellard | #include "exec-all.h" |
37 | 53a5960a | pbrook | #if defined(CONFIG_USER_ONLY)
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38 | 53a5960a | pbrook | #include <qemu.h> |
39 | 53a5960a | pbrook | #endif
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40 | 54936004 | bellard | |
41 | fd6ce8f6 | bellard | //#define DEBUG_TB_INVALIDATE
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42 | 66e85a21 | bellard | //#define DEBUG_FLUSH
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43 | 9fa3e853 | bellard | //#define DEBUG_TLB
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44 | 67d3b957 | pbrook | //#define DEBUG_UNASSIGNED
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45 | fd6ce8f6 | bellard | |
46 | fd6ce8f6 | bellard | /* make various TB consistency checks */
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47 | fd6ce8f6 | bellard | //#define DEBUG_TB_CHECK
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48 | 98857888 | bellard | //#define DEBUG_TLB_CHECK
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49 | fd6ce8f6 | bellard | |
50 | 1196be37 | ths | //#define DEBUG_IOPORT
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51 | db7b5426 | blueswir1 | //#define DEBUG_SUBPAGE
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52 | 1196be37 | ths | |
53 | 99773bd4 | pbrook | #if !defined(CONFIG_USER_ONLY)
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54 | 99773bd4 | pbrook | /* TB consistency checks only implemented for usermode emulation. */
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55 | 99773bd4 | pbrook | #undef DEBUG_TB_CHECK
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56 | 99773bd4 | pbrook | #endif
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57 | 99773bd4 | pbrook | |
58 | fd6ce8f6 | bellard | /* threshold to flush the translated code buffer */
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59 | fd6ce8f6 | bellard | #define CODE_GEN_BUFFER_MAX_SIZE (CODE_GEN_BUFFER_SIZE - CODE_GEN_MAX_SIZE)
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60 | fd6ce8f6 | bellard | |
61 | 9fa3e853 | bellard | #define SMC_BITMAP_USE_THRESHOLD 10 |
62 | 9fa3e853 | bellard | |
63 | 9fa3e853 | bellard | #define MMAP_AREA_START 0x00000000 |
64 | 9fa3e853 | bellard | #define MMAP_AREA_END 0xa8000000 |
65 | fd6ce8f6 | bellard | |
66 | 108c49b8 | bellard | #if defined(TARGET_SPARC64)
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67 | 108c49b8 | bellard | #define TARGET_PHYS_ADDR_SPACE_BITS 41 |
68 | 5dcb6b91 | blueswir1 | #elif defined(TARGET_SPARC)
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69 | 5dcb6b91 | blueswir1 | #define TARGET_PHYS_ADDR_SPACE_BITS 36 |
70 | bedb69ea | j_mayer | #elif defined(TARGET_ALPHA)
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71 | bedb69ea | j_mayer | #define TARGET_PHYS_ADDR_SPACE_BITS 42 |
72 | bedb69ea | j_mayer | #define TARGET_VIRT_ADDR_SPACE_BITS 42 |
73 | 108c49b8 | bellard | #elif defined(TARGET_PPC64)
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74 | 108c49b8 | bellard | #define TARGET_PHYS_ADDR_SPACE_BITS 42 |
75 | 108c49b8 | bellard | #else
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76 | 108c49b8 | bellard | /* Note: for compatibility with kqemu, we use 32 bits for x86_64 */
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77 | 108c49b8 | bellard | #define TARGET_PHYS_ADDR_SPACE_BITS 32 |
78 | 108c49b8 | bellard | #endif
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79 | 108c49b8 | bellard | |
80 | fd6ce8f6 | bellard | TranslationBlock tbs[CODE_GEN_MAX_BLOCKS]; |
81 | 9fa3e853 | bellard | TranslationBlock *tb_phys_hash[CODE_GEN_PHYS_HASH_SIZE]; |
82 | fd6ce8f6 | bellard | int nb_tbs;
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83 | eb51d102 | bellard | /* any access to the tbs or the page table must use this lock */
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84 | eb51d102 | bellard | spinlock_t tb_lock = SPIN_LOCK_UNLOCKED; |
85 | fd6ce8f6 | bellard | |
86 | b8076a74 | bellard | uint8_t code_gen_buffer[CODE_GEN_BUFFER_SIZE] __attribute__((aligned (32)));
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87 | fd6ce8f6 | bellard | uint8_t *code_gen_ptr; |
88 | fd6ce8f6 | bellard | |
89 | 9fa3e853 | bellard | int phys_ram_size;
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90 | 9fa3e853 | bellard | int phys_ram_fd;
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91 | 9fa3e853 | bellard | uint8_t *phys_ram_base; |
92 | 1ccde1cb | bellard | uint8_t *phys_ram_dirty; |
93 | e9a1ab19 | bellard | static ram_addr_t phys_ram_alloc_offset = 0; |
94 | 9fa3e853 | bellard | |
95 | 6a00d601 | bellard | CPUState *first_cpu; |
96 | 6a00d601 | bellard | /* current CPU in the current thread. It is only valid inside
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97 | 6a00d601 | bellard | cpu_exec() */
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98 | 6a00d601 | bellard | CPUState *cpu_single_env; |
99 | 6a00d601 | bellard | |
100 | 54936004 | bellard | typedef struct PageDesc { |
101 | 92e873b9 | bellard | /* list of TBs intersecting this ram page */
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102 | fd6ce8f6 | bellard | TranslationBlock *first_tb; |
103 | 9fa3e853 | bellard | /* in order to optimize self modifying code, we count the number
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104 | 9fa3e853 | bellard | of lookups we do to a given page to use a bitmap */
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105 | 9fa3e853 | bellard | unsigned int code_write_count; |
106 | 9fa3e853 | bellard | uint8_t *code_bitmap; |
107 | 9fa3e853 | bellard | #if defined(CONFIG_USER_ONLY)
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108 | 9fa3e853 | bellard | unsigned long flags; |
109 | 9fa3e853 | bellard | #endif
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110 | 54936004 | bellard | } PageDesc; |
111 | 54936004 | bellard | |
112 | 92e873b9 | bellard | typedef struct PhysPageDesc { |
113 | 92e873b9 | bellard | /* offset in host memory of the page + io_index in the low 12 bits */
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114 | e04f40b5 | bellard | uint32_t phys_offset; |
115 | 92e873b9 | bellard | } PhysPageDesc; |
116 | 92e873b9 | bellard | |
117 | 54936004 | bellard | #define L2_BITS 10 |
118 | bedb69ea | j_mayer | #if defined(CONFIG_USER_ONLY) && defined(TARGET_VIRT_ADDR_SPACE_BITS)
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119 | bedb69ea | j_mayer | /* XXX: this is a temporary hack for alpha target.
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120 | bedb69ea | j_mayer | * In the future, this is to be replaced by a multi-level table
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121 | bedb69ea | j_mayer | * to actually be able to handle the complete 64 bits address space.
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122 | bedb69ea | j_mayer | */
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123 | bedb69ea | j_mayer | #define L1_BITS (TARGET_VIRT_ADDR_SPACE_BITS - L2_BITS - TARGET_PAGE_BITS)
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124 | bedb69ea | j_mayer | #else
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125 | 54936004 | bellard | #define L1_BITS (32 - L2_BITS - TARGET_PAGE_BITS) |
126 | bedb69ea | j_mayer | #endif
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127 | 54936004 | bellard | |
128 | 54936004 | bellard | #define L1_SIZE (1 << L1_BITS) |
129 | 54936004 | bellard | #define L2_SIZE (1 << L2_BITS) |
130 | 54936004 | bellard | |
131 | 33417e70 | bellard | static void io_mem_init(void); |
132 | fd6ce8f6 | bellard | |
133 | 83fb7adf | bellard | unsigned long qemu_real_host_page_size; |
134 | 83fb7adf | bellard | unsigned long qemu_host_page_bits; |
135 | 83fb7adf | bellard | unsigned long qemu_host_page_size; |
136 | 83fb7adf | bellard | unsigned long qemu_host_page_mask; |
137 | 54936004 | bellard | |
138 | 92e873b9 | bellard | /* XXX: for system emulation, it could just be an array */
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139 | 54936004 | bellard | static PageDesc *l1_map[L1_SIZE];
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140 | 0a962c02 | bellard | PhysPageDesc **l1_phys_map; |
141 | 54936004 | bellard | |
142 | 33417e70 | bellard | /* io memory support */
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143 | 33417e70 | bellard | CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4];
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144 | 33417e70 | bellard | CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4];
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145 | a4193c8a | bellard | void *io_mem_opaque[IO_MEM_NB_ENTRIES];
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146 | 33417e70 | bellard | static int io_mem_nb; |
147 | 6658ffb8 | pbrook | #if defined(CONFIG_SOFTMMU)
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148 | 6658ffb8 | pbrook | static int io_mem_watch; |
149 | 6658ffb8 | pbrook | #endif
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150 | 33417e70 | bellard | |
151 | 34865134 | bellard | /* log support */
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152 | 34865134 | bellard | char *logfilename = "/tmp/qemu.log"; |
153 | 34865134 | bellard | FILE *logfile; |
154 | 34865134 | bellard | int loglevel;
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155 | e735b91c | pbrook | static int log_append = 0; |
156 | 34865134 | bellard | |
157 | e3db7226 | bellard | /* statistics */
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158 | e3db7226 | bellard | static int tlb_flush_count; |
159 | e3db7226 | bellard | static int tb_flush_count; |
160 | e3db7226 | bellard | static int tb_phys_invalidate_count; |
161 | e3db7226 | bellard | |
162 | db7b5426 | blueswir1 | #define SUBPAGE_IDX(addr) ((addr) & ~TARGET_PAGE_MASK)
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163 | db7b5426 | blueswir1 | typedef struct subpage_t { |
164 | db7b5426 | blueswir1 | target_phys_addr_t base; |
165 | db7b5426 | blueswir1 | CPUReadMemoryFunc **mem_read[TARGET_PAGE_SIZE]; |
166 | db7b5426 | blueswir1 | CPUWriteMemoryFunc **mem_write[TARGET_PAGE_SIZE]; |
167 | db7b5426 | blueswir1 | void *opaque[TARGET_PAGE_SIZE];
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168 | db7b5426 | blueswir1 | } subpage_t; |
169 | db7b5426 | blueswir1 | |
170 | b346ff46 | bellard | static void page_init(void) |
171 | 54936004 | bellard | { |
172 | 83fb7adf | bellard | /* NOTE: we can always suppose that qemu_host_page_size >=
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173 | 54936004 | bellard | TARGET_PAGE_SIZE */
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174 | 67b915a5 | bellard | #ifdef _WIN32
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175 | d5a8f07c | bellard | { |
176 | d5a8f07c | bellard | SYSTEM_INFO system_info; |
177 | d5a8f07c | bellard | DWORD old_protect; |
178 | d5a8f07c | bellard | |
179 | d5a8f07c | bellard | GetSystemInfo(&system_info); |
180 | d5a8f07c | bellard | qemu_real_host_page_size = system_info.dwPageSize; |
181 | d5a8f07c | bellard | |
182 | d5a8f07c | bellard | VirtualProtect(code_gen_buffer, sizeof(code_gen_buffer),
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183 | d5a8f07c | bellard | PAGE_EXECUTE_READWRITE, &old_protect); |
184 | d5a8f07c | bellard | } |
185 | 67b915a5 | bellard | #else
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186 | 83fb7adf | bellard | qemu_real_host_page_size = getpagesize(); |
187 | d5a8f07c | bellard | { |
188 | d5a8f07c | bellard | unsigned long start, end; |
189 | d5a8f07c | bellard | |
190 | d5a8f07c | bellard | start = (unsigned long)code_gen_buffer; |
191 | d5a8f07c | bellard | start &= ~(qemu_real_host_page_size - 1);
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192 | d5a8f07c | bellard | |
193 | d5a8f07c | bellard | end = (unsigned long)code_gen_buffer + sizeof(code_gen_buffer); |
194 | d5a8f07c | bellard | end += qemu_real_host_page_size - 1;
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195 | d5a8f07c | bellard | end &= ~(qemu_real_host_page_size - 1);
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196 | d5a8f07c | bellard | |
197 | d5a8f07c | bellard | mprotect((void *)start, end - start,
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198 | d5a8f07c | bellard | PROT_READ | PROT_WRITE | PROT_EXEC); |
199 | d5a8f07c | bellard | } |
200 | 67b915a5 | bellard | #endif
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201 | d5a8f07c | bellard | |
202 | 83fb7adf | bellard | if (qemu_host_page_size == 0) |
203 | 83fb7adf | bellard | qemu_host_page_size = qemu_real_host_page_size; |
204 | 83fb7adf | bellard | if (qemu_host_page_size < TARGET_PAGE_SIZE)
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205 | 83fb7adf | bellard | qemu_host_page_size = TARGET_PAGE_SIZE; |
206 | 83fb7adf | bellard | qemu_host_page_bits = 0;
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207 | 83fb7adf | bellard | while ((1 << qemu_host_page_bits) < qemu_host_page_size) |
208 | 83fb7adf | bellard | qemu_host_page_bits++; |
209 | 83fb7adf | bellard | qemu_host_page_mask = ~(qemu_host_page_size - 1);
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210 | 108c49b8 | bellard | l1_phys_map = qemu_vmalloc(L1_SIZE * sizeof(void *)); |
211 | 108c49b8 | bellard | memset(l1_phys_map, 0, L1_SIZE * sizeof(void *)); |
212 | 54936004 | bellard | } |
213 | 54936004 | bellard | |
214 | fd6ce8f6 | bellard | static inline PageDesc *page_find_alloc(unsigned int index) |
215 | 54936004 | bellard | { |
216 | 54936004 | bellard | PageDesc **lp, *p; |
217 | 54936004 | bellard | |
218 | 54936004 | bellard | lp = &l1_map[index >> L2_BITS]; |
219 | 54936004 | bellard | p = *lp; |
220 | 54936004 | bellard | if (!p) {
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221 | 54936004 | bellard | /* allocate if not found */
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222 | 59817ccb | bellard | p = qemu_malloc(sizeof(PageDesc) * L2_SIZE);
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223 | fd6ce8f6 | bellard | memset(p, 0, sizeof(PageDesc) * L2_SIZE); |
224 | 54936004 | bellard | *lp = p; |
225 | 54936004 | bellard | } |
226 | 54936004 | bellard | return p + (index & (L2_SIZE - 1)); |
227 | 54936004 | bellard | } |
228 | 54936004 | bellard | |
229 | fd6ce8f6 | bellard | static inline PageDesc *page_find(unsigned int index) |
230 | 54936004 | bellard | { |
231 | 54936004 | bellard | PageDesc *p; |
232 | 54936004 | bellard | |
233 | 54936004 | bellard | p = l1_map[index >> L2_BITS]; |
234 | 54936004 | bellard | if (!p)
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235 | 54936004 | bellard | return 0; |
236 | fd6ce8f6 | bellard | return p + (index & (L2_SIZE - 1)); |
237 | fd6ce8f6 | bellard | } |
238 | fd6ce8f6 | bellard | |
239 | 108c49b8 | bellard | static PhysPageDesc *phys_page_find_alloc(target_phys_addr_t index, int alloc) |
240 | 92e873b9 | bellard | { |
241 | 108c49b8 | bellard | void **lp, **p;
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242 | e3f4e2a4 | pbrook | PhysPageDesc *pd; |
243 | 92e873b9 | bellard | |
244 | 108c49b8 | bellard | p = (void **)l1_phys_map;
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245 | 108c49b8 | bellard | #if TARGET_PHYS_ADDR_SPACE_BITS > 32 |
246 | 108c49b8 | bellard | |
247 | 108c49b8 | bellard | #if TARGET_PHYS_ADDR_SPACE_BITS > (32 + L1_BITS) |
248 | 108c49b8 | bellard | #error unsupported TARGET_PHYS_ADDR_SPACE_BITS
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249 | 108c49b8 | bellard | #endif
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250 | 108c49b8 | bellard | lp = p + ((index >> (L1_BITS + L2_BITS)) & (L1_SIZE - 1));
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251 | 92e873b9 | bellard | p = *lp; |
252 | 92e873b9 | bellard | if (!p) {
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253 | 92e873b9 | bellard | /* allocate if not found */
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254 | 108c49b8 | bellard | if (!alloc)
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255 | 108c49b8 | bellard | return NULL; |
256 | 108c49b8 | bellard | p = qemu_vmalloc(sizeof(void *) * L1_SIZE); |
257 | 108c49b8 | bellard | memset(p, 0, sizeof(void *) * L1_SIZE); |
258 | 108c49b8 | bellard | *lp = p; |
259 | 108c49b8 | bellard | } |
260 | 108c49b8 | bellard | #endif
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261 | 108c49b8 | bellard | lp = p + ((index >> L2_BITS) & (L1_SIZE - 1));
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262 | e3f4e2a4 | pbrook | pd = *lp; |
263 | e3f4e2a4 | pbrook | if (!pd) {
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264 | e3f4e2a4 | pbrook | int i;
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265 | 108c49b8 | bellard | /* allocate if not found */
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266 | 108c49b8 | bellard | if (!alloc)
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267 | 108c49b8 | bellard | return NULL; |
268 | e3f4e2a4 | pbrook | pd = qemu_vmalloc(sizeof(PhysPageDesc) * L2_SIZE);
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269 | e3f4e2a4 | pbrook | *lp = pd; |
270 | e3f4e2a4 | pbrook | for (i = 0; i < L2_SIZE; i++) |
271 | e3f4e2a4 | pbrook | pd[i].phys_offset = IO_MEM_UNASSIGNED; |
272 | 92e873b9 | bellard | } |
273 | e3f4e2a4 | pbrook | return ((PhysPageDesc *)pd) + (index & (L2_SIZE - 1)); |
274 | 92e873b9 | bellard | } |
275 | 92e873b9 | bellard | |
276 | 108c49b8 | bellard | static inline PhysPageDesc *phys_page_find(target_phys_addr_t index) |
277 | 92e873b9 | bellard | { |
278 | 108c49b8 | bellard | return phys_page_find_alloc(index, 0); |
279 | 92e873b9 | bellard | } |
280 | 92e873b9 | bellard | |
281 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
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282 | 6a00d601 | bellard | static void tlb_protect_code(ram_addr_t ram_addr); |
283 | 3a7d929e | bellard | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, |
284 | 3a7d929e | bellard | target_ulong vaddr); |
285 | 9fa3e853 | bellard | #endif
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286 | fd6ce8f6 | bellard | |
287 | 6a00d601 | bellard | void cpu_exec_init(CPUState *env)
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288 | fd6ce8f6 | bellard | { |
289 | 6a00d601 | bellard | CPUState **penv; |
290 | 6a00d601 | bellard | int cpu_index;
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291 | 6a00d601 | bellard | |
292 | fd6ce8f6 | bellard | if (!code_gen_ptr) {
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293 | fd6ce8f6 | bellard | code_gen_ptr = code_gen_buffer; |
294 | b346ff46 | bellard | page_init(); |
295 | 33417e70 | bellard | io_mem_init(); |
296 | fd6ce8f6 | bellard | } |
297 | 6a00d601 | bellard | env->next_cpu = NULL;
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298 | 6a00d601 | bellard | penv = &first_cpu; |
299 | 6a00d601 | bellard | cpu_index = 0;
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300 | 6a00d601 | bellard | while (*penv != NULL) { |
301 | 6a00d601 | bellard | penv = (CPUState **)&(*penv)->next_cpu; |
302 | 6a00d601 | bellard | cpu_index++; |
303 | 6a00d601 | bellard | } |
304 | 6a00d601 | bellard | env->cpu_index = cpu_index; |
305 | 6658ffb8 | pbrook | env->nb_watchpoints = 0;
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306 | 6a00d601 | bellard | *penv = env; |
307 | fd6ce8f6 | bellard | } |
308 | fd6ce8f6 | bellard | |
309 | 9fa3e853 | bellard | static inline void invalidate_page_bitmap(PageDesc *p) |
310 | 9fa3e853 | bellard | { |
311 | 9fa3e853 | bellard | if (p->code_bitmap) {
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312 | 59817ccb | bellard | qemu_free(p->code_bitmap); |
313 | 9fa3e853 | bellard | p->code_bitmap = NULL;
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314 | 9fa3e853 | bellard | } |
315 | 9fa3e853 | bellard | p->code_write_count = 0;
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316 | 9fa3e853 | bellard | } |
317 | 9fa3e853 | bellard | |
318 | fd6ce8f6 | bellard | /* set to NULL all the 'first_tb' fields in all PageDescs */
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319 | fd6ce8f6 | bellard | static void page_flush_tb(void) |
320 | fd6ce8f6 | bellard | { |
321 | fd6ce8f6 | bellard | int i, j;
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322 | fd6ce8f6 | bellard | PageDesc *p; |
323 | fd6ce8f6 | bellard | |
324 | fd6ce8f6 | bellard | for(i = 0; i < L1_SIZE; i++) { |
325 | fd6ce8f6 | bellard | p = l1_map[i]; |
326 | fd6ce8f6 | bellard | if (p) {
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327 | 9fa3e853 | bellard | for(j = 0; j < L2_SIZE; j++) { |
328 | 9fa3e853 | bellard | p->first_tb = NULL;
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329 | 9fa3e853 | bellard | invalidate_page_bitmap(p); |
330 | 9fa3e853 | bellard | p++; |
331 | 9fa3e853 | bellard | } |
332 | fd6ce8f6 | bellard | } |
333 | fd6ce8f6 | bellard | } |
334 | fd6ce8f6 | bellard | } |
335 | fd6ce8f6 | bellard | |
336 | fd6ce8f6 | bellard | /* flush all the translation blocks */
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337 | d4e8164f | bellard | /* XXX: tb_flush is currently not thread safe */
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338 | 6a00d601 | bellard | void tb_flush(CPUState *env1)
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339 | fd6ce8f6 | bellard | { |
340 | 6a00d601 | bellard | CPUState *env; |
341 | 0124311e | bellard | #if defined(DEBUG_FLUSH)
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342 | fd6ce8f6 | bellard | printf("qemu: flush code_size=%d nb_tbs=%d avg_tb_size=%d\n",
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343 | fd6ce8f6 | bellard | code_gen_ptr - code_gen_buffer, |
344 | fd6ce8f6 | bellard | nb_tbs, |
345 | 0124311e | bellard | nb_tbs > 0 ? (code_gen_ptr - code_gen_buffer) / nb_tbs : 0); |
346 | fd6ce8f6 | bellard | #endif
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347 | fd6ce8f6 | bellard | nb_tbs = 0;
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348 | 6a00d601 | bellard | |
349 | 6a00d601 | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
350 | 6a00d601 | bellard | memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *)); |
351 | 6a00d601 | bellard | } |
352 | 9fa3e853 | bellard | |
353 | 8a8a608f | bellard | memset (tb_phys_hash, 0, CODE_GEN_PHYS_HASH_SIZE * sizeof (void *)); |
354 | fd6ce8f6 | bellard | page_flush_tb(); |
355 | 9fa3e853 | bellard | |
356 | fd6ce8f6 | bellard | code_gen_ptr = code_gen_buffer; |
357 | d4e8164f | bellard | /* XXX: flush processor icache at this point if cache flush is
|
358 | d4e8164f | bellard | expensive */
|
359 | e3db7226 | bellard | tb_flush_count++; |
360 | fd6ce8f6 | bellard | } |
361 | fd6ce8f6 | bellard | |
362 | fd6ce8f6 | bellard | #ifdef DEBUG_TB_CHECK
|
363 | fd6ce8f6 | bellard | |
364 | bc98a7ef | j_mayer | static void tb_invalidate_check(target_ulong address) |
365 | fd6ce8f6 | bellard | { |
366 | fd6ce8f6 | bellard | TranslationBlock *tb; |
367 | fd6ce8f6 | bellard | int i;
|
368 | fd6ce8f6 | bellard | address &= TARGET_PAGE_MASK; |
369 | 99773bd4 | pbrook | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
370 | 99773bd4 | pbrook | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { |
371 | fd6ce8f6 | bellard | if (!(address + TARGET_PAGE_SIZE <= tb->pc ||
|
372 | fd6ce8f6 | bellard | address >= tb->pc + tb->size)) { |
373 | fd6ce8f6 | bellard | printf("ERROR invalidate: address=%08lx PC=%08lx size=%04x\n",
|
374 | 99773bd4 | pbrook | address, (long)tb->pc, tb->size);
|
375 | fd6ce8f6 | bellard | } |
376 | fd6ce8f6 | bellard | } |
377 | fd6ce8f6 | bellard | } |
378 | fd6ce8f6 | bellard | } |
379 | fd6ce8f6 | bellard | |
380 | fd6ce8f6 | bellard | /* verify that all the pages have correct rights for code */
|
381 | fd6ce8f6 | bellard | static void tb_page_check(void) |
382 | fd6ce8f6 | bellard | { |
383 | fd6ce8f6 | bellard | TranslationBlock *tb; |
384 | fd6ce8f6 | bellard | int i, flags1, flags2;
|
385 | fd6ce8f6 | bellard | |
386 | 99773bd4 | pbrook | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
387 | 99773bd4 | pbrook | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { |
388 | fd6ce8f6 | bellard | flags1 = page_get_flags(tb->pc); |
389 | fd6ce8f6 | bellard | flags2 = page_get_flags(tb->pc + tb->size - 1);
|
390 | fd6ce8f6 | bellard | if ((flags1 & PAGE_WRITE) || (flags2 & PAGE_WRITE)) {
|
391 | fd6ce8f6 | bellard | printf("ERROR page flags: PC=%08lx size=%04x f1=%x f2=%x\n",
|
392 | 99773bd4 | pbrook | (long)tb->pc, tb->size, flags1, flags2);
|
393 | fd6ce8f6 | bellard | } |
394 | fd6ce8f6 | bellard | } |
395 | fd6ce8f6 | bellard | } |
396 | fd6ce8f6 | bellard | } |
397 | fd6ce8f6 | bellard | |
398 | d4e8164f | bellard | void tb_jmp_check(TranslationBlock *tb)
|
399 | d4e8164f | bellard | { |
400 | d4e8164f | bellard | TranslationBlock *tb1; |
401 | d4e8164f | bellard | unsigned int n1; |
402 | d4e8164f | bellard | |
403 | d4e8164f | bellard | /* suppress any remaining jumps to this TB */
|
404 | d4e8164f | bellard | tb1 = tb->jmp_first; |
405 | d4e8164f | bellard | for(;;) {
|
406 | d4e8164f | bellard | n1 = (long)tb1 & 3; |
407 | d4e8164f | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
408 | d4e8164f | bellard | if (n1 == 2) |
409 | d4e8164f | bellard | break;
|
410 | d4e8164f | bellard | tb1 = tb1->jmp_next[n1]; |
411 | d4e8164f | bellard | } |
412 | d4e8164f | bellard | /* check end of list */
|
413 | d4e8164f | bellard | if (tb1 != tb) {
|
414 | d4e8164f | bellard | printf("ERROR: jmp_list from 0x%08lx\n", (long)tb); |
415 | d4e8164f | bellard | } |
416 | d4e8164f | bellard | } |
417 | d4e8164f | bellard | |
418 | fd6ce8f6 | bellard | #endif
|
419 | fd6ce8f6 | bellard | |
420 | fd6ce8f6 | bellard | /* invalidate one TB */
|
421 | fd6ce8f6 | bellard | static inline void tb_remove(TranslationBlock **ptb, TranslationBlock *tb, |
422 | fd6ce8f6 | bellard | int next_offset)
|
423 | fd6ce8f6 | bellard | { |
424 | fd6ce8f6 | bellard | TranslationBlock *tb1; |
425 | fd6ce8f6 | bellard | for(;;) {
|
426 | fd6ce8f6 | bellard | tb1 = *ptb; |
427 | fd6ce8f6 | bellard | if (tb1 == tb) {
|
428 | fd6ce8f6 | bellard | *ptb = *(TranslationBlock **)((char *)tb1 + next_offset);
|
429 | fd6ce8f6 | bellard | break;
|
430 | fd6ce8f6 | bellard | } |
431 | fd6ce8f6 | bellard | ptb = (TranslationBlock **)((char *)tb1 + next_offset);
|
432 | fd6ce8f6 | bellard | } |
433 | fd6ce8f6 | bellard | } |
434 | fd6ce8f6 | bellard | |
435 | 9fa3e853 | bellard | static inline void tb_page_remove(TranslationBlock **ptb, TranslationBlock *tb) |
436 | 9fa3e853 | bellard | { |
437 | 9fa3e853 | bellard | TranslationBlock *tb1; |
438 | 9fa3e853 | bellard | unsigned int n1; |
439 | 9fa3e853 | bellard | |
440 | 9fa3e853 | bellard | for(;;) {
|
441 | 9fa3e853 | bellard | tb1 = *ptb; |
442 | 9fa3e853 | bellard | n1 = (long)tb1 & 3; |
443 | 9fa3e853 | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
444 | 9fa3e853 | bellard | if (tb1 == tb) {
|
445 | 9fa3e853 | bellard | *ptb = tb1->page_next[n1]; |
446 | 9fa3e853 | bellard | break;
|
447 | 9fa3e853 | bellard | } |
448 | 9fa3e853 | bellard | ptb = &tb1->page_next[n1]; |
449 | 9fa3e853 | bellard | } |
450 | 9fa3e853 | bellard | } |
451 | 9fa3e853 | bellard | |
452 | d4e8164f | bellard | static inline void tb_jmp_remove(TranslationBlock *tb, int n) |
453 | d4e8164f | bellard | { |
454 | d4e8164f | bellard | TranslationBlock *tb1, **ptb; |
455 | d4e8164f | bellard | unsigned int n1; |
456 | d4e8164f | bellard | |
457 | d4e8164f | bellard | ptb = &tb->jmp_next[n]; |
458 | d4e8164f | bellard | tb1 = *ptb; |
459 | d4e8164f | bellard | if (tb1) {
|
460 | d4e8164f | bellard | /* find tb(n) in circular list */
|
461 | d4e8164f | bellard | for(;;) {
|
462 | d4e8164f | bellard | tb1 = *ptb; |
463 | d4e8164f | bellard | n1 = (long)tb1 & 3; |
464 | d4e8164f | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
465 | d4e8164f | bellard | if (n1 == n && tb1 == tb)
|
466 | d4e8164f | bellard | break;
|
467 | d4e8164f | bellard | if (n1 == 2) { |
468 | d4e8164f | bellard | ptb = &tb1->jmp_first; |
469 | d4e8164f | bellard | } else {
|
470 | d4e8164f | bellard | ptb = &tb1->jmp_next[n1]; |
471 | d4e8164f | bellard | } |
472 | d4e8164f | bellard | } |
473 | d4e8164f | bellard | /* now we can suppress tb(n) from the list */
|
474 | d4e8164f | bellard | *ptb = tb->jmp_next[n]; |
475 | d4e8164f | bellard | |
476 | d4e8164f | bellard | tb->jmp_next[n] = NULL;
|
477 | d4e8164f | bellard | } |
478 | d4e8164f | bellard | } |
479 | d4e8164f | bellard | |
480 | d4e8164f | bellard | /* reset the jump entry 'n' of a TB so that it is not chained to
|
481 | d4e8164f | bellard | another TB */
|
482 | d4e8164f | bellard | static inline void tb_reset_jump(TranslationBlock *tb, int n) |
483 | d4e8164f | bellard | { |
484 | d4e8164f | bellard | tb_set_jmp_target(tb, n, (unsigned long)(tb->tc_ptr + tb->tb_next_offset[n])); |
485 | d4e8164f | bellard | } |
486 | d4e8164f | bellard | |
487 | 8a40a180 | bellard | static inline void tb_phys_invalidate(TranslationBlock *tb, unsigned int page_addr) |
488 | fd6ce8f6 | bellard | { |
489 | 6a00d601 | bellard | CPUState *env; |
490 | 8a40a180 | bellard | PageDesc *p; |
491 | d4e8164f | bellard | unsigned int h, n1; |
492 | 8a40a180 | bellard | target_ulong phys_pc; |
493 | 8a40a180 | bellard | TranslationBlock *tb1, *tb2; |
494 | d4e8164f | bellard | |
495 | 8a40a180 | bellard | /* remove the TB from the hash list */
|
496 | 8a40a180 | bellard | phys_pc = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK);
|
497 | 8a40a180 | bellard | h = tb_phys_hash_func(phys_pc); |
498 | 8a40a180 | bellard | tb_remove(&tb_phys_hash[h], tb, |
499 | 8a40a180 | bellard | offsetof(TranslationBlock, phys_hash_next)); |
500 | 8a40a180 | bellard | |
501 | 8a40a180 | bellard | /* remove the TB from the page list */
|
502 | 8a40a180 | bellard | if (tb->page_addr[0] != page_addr) { |
503 | 8a40a180 | bellard | p = page_find(tb->page_addr[0] >> TARGET_PAGE_BITS);
|
504 | 8a40a180 | bellard | tb_page_remove(&p->first_tb, tb); |
505 | 8a40a180 | bellard | invalidate_page_bitmap(p); |
506 | 8a40a180 | bellard | } |
507 | 8a40a180 | bellard | if (tb->page_addr[1] != -1 && tb->page_addr[1] != page_addr) { |
508 | 8a40a180 | bellard | p = page_find(tb->page_addr[1] >> TARGET_PAGE_BITS);
|
509 | 8a40a180 | bellard | tb_page_remove(&p->first_tb, tb); |
510 | 8a40a180 | bellard | invalidate_page_bitmap(p); |
511 | 8a40a180 | bellard | } |
512 | 8a40a180 | bellard | |
513 | 36bdbe54 | bellard | tb_invalidated_flag = 1;
|
514 | 59817ccb | bellard | |
515 | fd6ce8f6 | bellard | /* remove the TB from the hash list */
|
516 | 8a40a180 | bellard | h = tb_jmp_cache_hash_func(tb->pc); |
517 | 6a00d601 | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
518 | 6a00d601 | bellard | if (env->tb_jmp_cache[h] == tb)
|
519 | 6a00d601 | bellard | env->tb_jmp_cache[h] = NULL;
|
520 | 6a00d601 | bellard | } |
521 | d4e8164f | bellard | |
522 | d4e8164f | bellard | /* suppress this TB from the two jump lists */
|
523 | d4e8164f | bellard | tb_jmp_remove(tb, 0);
|
524 | d4e8164f | bellard | tb_jmp_remove(tb, 1);
|
525 | d4e8164f | bellard | |
526 | d4e8164f | bellard | /* suppress any remaining jumps to this TB */
|
527 | d4e8164f | bellard | tb1 = tb->jmp_first; |
528 | d4e8164f | bellard | for(;;) {
|
529 | d4e8164f | bellard | n1 = (long)tb1 & 3; |
530 | d4e8164f | bellard | if (n1 == 2) |
531 | d4e8164f | bellard | break;
|
532 | d4e8164f | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
533 | d4e8164f | bellard | tb2 = tb1->jmp_next[n1]; |
534 | d4e8164f | bellard | tb_reset_jump(tb1, n1); |
535 | d4e8164f | bellard | tb1->jmp_next[n1] = NULL;
|
536 | d4e8164f | bellard | tb1 = tb2; |
537 | d4e8164f | bellard | } |
538 | d4e8164f | bellard | tb->jmp_first = (TranslationBlock *)((long)tb | 2); /* fail safe */ |
539 | 9fa3e853 | bellard | |
540 | e3db7226 | bellard | tb_phys_invalidate_count++; |
541 | 9fa3e853 | bellard | } |
542 | 9fa3e853 | bellard | |
543 | 9fa3e853 | bellard | static inline void set_bits(uint8_t *tab, int start, int len) |
544 | 9fa3e853 | bellard | { |
545 | 9fa3e853 | bellard | int end, mask, end1;
|
546 | 9fa3e853 | bellard | |
547 | 9fa3e853 | bellard | end = start + len; |
548 | 9fa3e853 | bellard | tab += start >> 3;
|
549 | 9fa3e853 | bellard | mask = 0xff << (start & 7); |
550 | 9fa3e853 | bellard | if ((start & ~7) == (end & ~7)) { |
551 | 9fa3e853 | bellard | if (start < end) {
|
552 | 9fa3e853 | bellard | mask &= ~(0xff << (end & 7)); |
553 | 9fa3e853 | bellard | *tab |= mask; |
554 | 9fa3e853 | bellard | } |
555 | 9fa3e853 | bellard | } else {
|
556 | 9fa3e853 | bellard | *tab++ |= mask; |
557 | 9fa3e853 | bellard | start = (start + 8) & ~7; |
558 | 9fa3e853 | bellard | end1 = end & ~7;
|
559 | 9fa3e853 | bellard | while (start < end1) {
|
560 | 9fa3e853 | bellard | *tab++ = 0xff;
|
561 | 9fa3e853 | bellard | start += 8;
|
562 | 9fa3e853 | bellard | } |
563 | 9fa3e853 | bellard | if (start < end) {
|
564 | 9fa3e853 | bellard | mask = ~(0xff << (end & 7)); |
565 | 9fa3e853 | bellard | *tab |= mask; |
566 | 9fa3e853 | bellard | } |
567 | 9fa3e853 | bellard | } |
568 | 9fa3e853 | bellard | } |
569 | 9fa3e853 | bellard | |
570 | 9fa3e853 | bellard | static void build_page_bitmap(PageDesc *p) |
571 | 9fa3e853 | bellard | { |
572 | 9fa3e853 | bellard | int n, tb_start, tb_end;
|
573 | 9fa3e853 | bellard | TranslationBlock *tb; |
574 | 9fa3e853 | bellard | |
575 | 59817ccb | bellard | p->code_bitmap = qemu_malloc(TARGET_PAGE_SIZE / 8);
|
576 | 9fa3e853 | bellard | if (!p->code_bitmap)
|
577 | 9fa3e853 | bellard | return;
|
578 | 9fa3e853 | bellard | memset(p->code_bitmap, 0, TARGET_PAGE_SIZE / 8); |
579 | 9fa3e853 | bellard | |
580 | 9fa3e853 | bellard | tb = p->first_tb; |
581 | 9fa3e853 | bellard | while (tb != NULL) { |
582 | 9fa3e853 | bellard | n = (long)tb & 3; |
583 | 9fa3e853 | bellard | tb = (TranslationBlock *)((long)tb & ~3); |
584 | 9fa3e853 | bellard | /* NOTE: this is subtle as a TB may span two physical pages */
|
585 | 9fa3e853 | bellard | if (n == 0) { |
586 | 9fa3e853 | bellard | /* NOTE: tb_end may be after the end of the page, but
|
587 | 9fa3e853 | bellard | it is not a problem */
|
588 | 9fa3e853 | bellard | tb_start = tb->pc & ~TARGET_PAGE_MASK; |
589 | 9fa3e853 | bellard | tb_end = tb_start + tb->size; |
590 | 9fa3e853 | bellard | if (tb_end > TARGET_PAGE_SIZE)
|
591 | 9fa3e853 | bellard | tb_end = TARGET_PAGE_SIZE; |
592 | 9fa3e853 | bellard | } else {
|
593 | 9fa3e853 | bellard | tb_start = 0;
|
594 | 9fa3e853 | bellard | tb_end = ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); |
595 | 9fa3e853 | bellard | } |
596 | 9fa3e853 | bellard | set_bits(p->code_bitmap, tb_start, tb_end - tb_start); |
597 | 9fa3e853 | bellard | tb = tb->page_next[n]; |
598 | 9fa3e853 | bellard | } |
599 | 9fa3e853 | bellard | } |
600 | 9fa3e853 | bellard | |
601 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
602 | d720b93d | bellard | |
603 | d720b93d | bellard | static void tb_gen_code(CPUState *env, |
604 | d720b93d | bellard | target_ulong pc, target_ulong cs_base, int flags,
|
605 | d720b93d | bellard | int cflags)
|
606 | d720b93d | bellard | { |
607 | d720b93d | bellard | TranslationBlock *tb; |
608 | d720b93d | bellard | uint8_t *tc_ptr; |
609 | d720b93d | bellard | target_ulong phys_pc, phys_page2, virt_page2; |
610 | d720b93d | bellard | int code_gen_size;
|
611 | d720b93d | bellard | |
612 | c27004ec | bellard | phys_pc = get_phys_addr_code(env, pc); |
613 | c27004ec | bellard | tb = tb_alloc(pc); |
614 | d720b93d | bellard | if (!tb) {
|
615 | d720b93d | bellard | /* flush must be done */
|
616 | d720b93d | bellard | tb_flush(env); |
617 | d720b93d | bellard | /* cannot fail at this point */
|
618 | c27004ec | bellard | tb = tb_alloc(pc); |
619 | d720b93d | bellard | } |
620 | d720b93d | bellard | tc_ptr = code_gen_ptr; |
621 | d720b93d | bellard | tb->tc_ptr = tc_ptr; |
622 | d720b93d | bellard | tb->cs_base = cs_base; |
623 | d720b93d | bellard | tb->flags = flags; |
624 | d720b93d | bellard | tb->cflags = cflags; |
625 | d720b93d | bellard | cpu_gen_code(env, tb, CODE_GEN_MAX_SIZE, &code_gen_size); |
626 | d720b93d | bellard | code_gen_ptr = (void *)(((unsigned long)code_gen_ptr + code_gen_size + CODE_GEN_ALIGN - 1) & ~(CODE_GEN_ALIGN - 1)); |
627 | d720b93d | bellard | |
628 | d720b93d | bellard | /* check next page if needed */
|
629 | c27004ec | bellard | virt_page2 = (pc + tb->size - 1) & TARGET_PAGE_MASK;
|
630 | d720b93d | bellard | phys_page2 = -1;
|
631 | c27004ec | bellard | if ((pc & TARGET_PAGE_MASK) != virt_page2) {
|
632 | d720b93d | bellard | phys_page2 = get_phys_addr_code(env, virt_page2); |
633 | d720b93d | bellard | } |
634 | d720b93d | bellard | tb_link_phys(tb, phys_pc, phys_page2); |
635 | d720b93d | bellard | } |
636 | d720b93d | bellard | #endif
|
637 | d720b93d | bellard | |
638 | 9fa3e853 | bellard | /* invalidate all TBs which intersect with the target physical page
|
639 | 9fa3e853 | bellard | starting in range [start;end[. NOTE: start and end must refer to
|
640 | d720b93d | bellard | the same physical page. 'is_cpu_write_access' should be true if called
|
641 | d720b93d | bellard | from a real cpu write access: the virtual CPU will exit the current
|
642 | d720b93d | bellard | TB if code is modified inside this TB. */
|
643 | d720b93d | bellard | void tb_invalidate_phys_page_range(target_ulong start, target_ulong end,
|
644 | d720b93d | bellard | int is_cpu_write_access)
|
645 | d720b93d | bellard | { |
646 | d720b93d | bellard | int n, current_tb_modified, current_tb_not_found, current_flags;
|
647 | d720b93d | bellard | CPUState *env = cpu_single_env; |
648 | 9fa3e853 | bellard | PageDesc *p; |
649 | ea1c1802 | bellard | TranslationBlock *tb, *tb_next, *current_tb, *saved_tb; |
650 | 9fa3e853 | bellard | target_ulong tb_start, tb_end; |
651 | d720b93d | bellard | target_ulong current_pc, current_cs_base; |
652 | 9fa3e853 | bellard | |
653 | 9fa3e853 | bellard | p = page_find(start >> TARGET_PAGE_BITS); |
654 | 9fa3e853 | bellard | if (!p)
|
655 | 9fa3e853 | bellard | return;
|
656 | 9fa3e853 | bellard | if (!p->code_bitmap &&
|
657 | d720b93d | bellard | ++p->code_write_count >= SMC_BITMAP_USE_THRESHOLD && |
658 | d720b93d | bellard | is_cpu_write_access) { |
659 | 9fa3e853 | bellard | /* build code bitmap */
|
660 | 9fa3e853 | bellard | build_page_bitmap(p); |
661 | 9fa3e853 | bellard | } |
662 | 9fa3e853 | bellard | |
663 | 9fa3e853 | bellard | /* we remove all the TBs in the range [start, end[ */
|
664 | 9fa3e853 | bellard | /* XXX: see if in some cases it could be faster to invalidate all the code */
|
665 | d720b93d | bellard | current_tb_not_found = is_cpu_write_access; |
666 | d720b93d | bellard | current_tb_modified = 0;
|
667 | d720b93d | bellard | current_tb = NULL; /* avoid warning */ |
668 | d720b93d | bellard | current_pc = 0; /* avoid warning */ |
669 | d720b93d | bellard | current_cs_base = 0; /* avoid warning */ |
670 | d720b93d | bellard | current_flags = 0; /* avoid warning */ |
671 | 9fa3e853 | bellard | tb = p->first_tb; |
672 | 9fa3e853 | bellard | while (tb != NULL) { |
673 | 9fa3e853 | bellard | n = (long)tb & 3; |
674 | 9fa3e853 | bellard | tb = (TranslationBlock *)((long)tb & ~3); |
675 | 9fa3e853 | bellard | tb_next = tb->page_next[n]; |
676 | 9fa3e853 | bellard | /* NOTE: this is subtle as a TB may span two physical pages */
|
677 | 9fa3e853 | bellard | if (n == 0) { |
678 | 9fa3e853 | bellard | /* NOTE: tb_end may be after the end of the page, but
|
679 | 9fa3e853 | bellard | it is not a problem */
|
680 | 9fa3e853 | bellard | tb_start = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK);
|
681 | 9fa3e853 | bellard | tb_end = tb_start + tb->size; |
682 | 9fa3e853 | bellard | } else {
|
683 | 9fa3e853 | bellard | tb_start = tb->page_addr[1];
|
684 | 9fa3e853 | bellard | tb_end = tb_start + ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); |
685 | 9fa3e853 | bellard | } |
686 | 9fa3e853 | bellard | if (!(tb_end <= start || tb_start >= end)) {
|
687 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
688 | d720b93d | bellard | if (current_tb_not_found) {
|
689 | d720b93d | bellard | current_tb_not_found = 0;
|
690 | d720b93d | bellard | current_tb = NULL;
|
691 | d720b93d | bellard | if (env->mem_write_pc) {
|
692 | d720b93d | bellard | /* now we have a real cpu fault */
|
693 | d720b93d | bellard | current_tb = tb_find_pc(env->mem_write_pc); |
694 | d720b93d | bellard | } |
695 | d720b93d | bellard | } |
696 | d720b93d | bellard | if (current_tb == tb &&
|
697 | d720b93d | bellard | !(current_tb->cflags & CF_SINGLE_INSN)) { |
698 | d720b93d | bellard | /* If we are modifying the current TB, we must stop
|
699 | d720b93d | bellard | its execution. We could be more precise by checking
|
700 | d720b93d | bellard | that the modification is after the current PC, but it
|
701 | d720b93d | bellard | would require a specialized function to partially
|
702 | d720b93d | bellard | restore the CPU state */
|
703 | d720b93d | bellard | |
704 | d720b93d | bellard | current_tb_modified = 1;
|
705 | d720b93d | bellard | cpu_restore_state(current_tb, env, |
706 | d720b93d | bellard | env->mem_write_pc, NULL);
|
707 | d720b93d | bellard | #if defined(TARGET_I386)
|
708 | d720b93d | bellard | current_flags = env->hflags; |
709 | d720b93d | bellard | current_flags |= (env->eflags & (IOPL_MASK | TF_MASK | VM_MASK)); |
710 | d720b93d | bellard | current_cs_base = (target_ulong)env->segs[R_CS].base; |
711 | d720b93d | bellard | current_pc = current_cs_base + env->eip; |
712 | d720b93d | bellard | #else
|
713 | d720b93d | bellard | #error unsupported CPU
|
714 | d720b93d | bellard | #endif
|
715 | d720b93d | bellard | } |
716 | d720b93d | bellard | #endif /* TARGET_HAS_PRECISE_SMC */ |
717 | 6f5a9f7e | bellard | /* we need to do that to handle the case where a signal
|
718 | 6f5a9f7e | bellard | occurs while doing tb_phys_invalidate() */
|
719 | 6f5a9f7e | bellard | saved_tb = NULL;
|
720 | 6f5a9f7e | bellard | if (env) {
|
721 | 6f5a9f7e | bellard | saved_tb = env->current_tb; |
722 | 6f5a9f7e | bellard | env->current_tb = NULL;
|
723 | 6f5a9f7e | bellard | } |
724 | 9fa3e853 | bellard | tb_phys_invalidate(tb, -1);
|
725 | 6f5a9f7e | bellard | if (env) {
|
726 | 6f5a9f7e | bellard | env->current_tb = saved_tb; |
727 | 6f5a9f7e | bellard | if (env->interrupt_request && env->current_tb)
|
728 | 6f5a9f7e | bellard | cpu_interrupt(env, env->interrupt_request); |
729 | 6f5a9f7e | bellard | } |
730 | 9fa3e853 | bellard | } |
731 | 9fa3e853 | bellard | tb = tb_next; |
732 | 9fa3e853 | bellard | } |
733 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
734 | 9fa3e853 | bellard | /* if no code remaining, no need to continue to use slow writes */
|
735 | 9fa3e853 | bellard | if (!p->first_tb) {
|
736 | 9fa3e853 | bellard | invalidate_page_bitmap(p); |
737 | d720b93d | bellard | if (is_cpu_write_access) {
|
738 | d720b93d | bellard | tlb_unprotect_code_phys(env, start, env->mem_write_vaddr); |
739 | d720b93d | bellard | } |
740 | d720b93d | bellard | } |
741 | d720b93d | bellard | #endif
|
742 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
743 | d720b93d | bellard | if (current_tb_modified) {
|
744 | d720b93d | bellard | /* we generate a block containing just the instruction
|
745 | d720b93d | bellard | modifying the memory. It will ensure that it cannot modify
|
746 | d720b93d | bellard | itself */
|
747 | ea1c1802 | bellard | env->current_tb = NULL;
|
748 | d720b93d | bellard | tb_gen_code(env, current_pc, current_cs_base, current_flags, |
749 | d720b93d | bellard | CF_SINGLE_INSN); |
750 | d720b93d | bellard | cpu_resume_from_signal(env, NULL);
|
751 | 9fa3e853 | bellard | } |
752 | fd6ce8f6 | bellard | #endif
|
753 | 9fa3e853 | bellard | } |
754 | fd6ce8f6 | bellard | |
755 | 9fa3e853 | bellard | /* len must be <= 8 and start must be a multiple of len */
|
756 | d720b93d | bellard | static inline void tb_invalidate_phys_page_fast(target_ulong start, int len) |
757 | 9fa3e853 | bellard | { |
758 | 9fa3e853 | bellard | PageDesc *p; |
759 | 9fa3e853 | bellard | int offset, b;
|
760 | 59817ccb | bellard | #if 0
|
761 | a4193c8a | bellard | if (1) {
|
762 | a4193c8a | bellard | if (loglevel) {
|
763 | a4193c8a | bellard | fprintf(logfile, "modifying code at 0x%x size=%d EIP=%x PC=%08x\n",
|
764 | a4193c8a | bellard | cpu_single_env->mem_write_vaddr, len,
|
765 | a4193c8a | bellard | cpu_single_env->eip,
|
766 | a4193c8a | bellard | cpu_single_env->eip + (long)cpu_single_env->segs[R_CS].base);
|
767 | a4193c8a | bellard | }
|
768 | 59817ccb | bellard | }
|
769 | 59817ccb | bellard | #endif
|
770 | 9fa3e853 | bellard | p = page_find(start >> TARGET_PAGE_BITS); |
771 | 9fa3e853 | bellard | if (!p)
|
772 | 9fa3e853 | bellard | return;
|
773 | 9fa3e853 | bellard | if (p->code_bitmap) {
|
774 | 9fa3e853 | bellard | offset = start & ~TARGET_PAGE_MASK; |
775 | 9fa3e853 | bellard | b = p->code_bitmap[offset >> 3] >> (offset & 7); |
776 | 9fa3e853 | bellard | if (b & ((1 << len) - 1)) |
777 | 9fa3e853 | bellard | goto do_invalidate;
|
778 | 9fa3e853 | bellard | } else {
|
779 | 9fa3e853 | bellard | do_invalidate:
|
780 | d720b93d | bellard | tb_invalidate_phys_page_range(start, start + len, 1);
|
781 | 9fa3e853 | bellard | } |
782 | 9fa3e853 | bellard | } |
783 | 9fa3e853 | bellard | |
784 | 9fa3e853 | bellard | #if !defined(CONFIG_SOFTMMU)
|
785 | d720b93d | bellard | static void tb_invalidate_phys_page(target_ulong addr, |
786 | d720b93d | bellard | unsigned long pc, void *puc) |
787 | 9fa3e853 | bellard | { |
788 | d720b93d | bellard | int n, current_flags, current_tb_modified;
|
789 | d720b93d | bellard | target_ulong current_pc, current_cs_base; |
790 | 9fa3e853 | bellard | PageDesc *p; |
791 | d720b93d | bellard | TranslationBlock *tb, *current_tb; |
792 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
793 | d720b93d | bellard | CPUState *env = cpu_single_env; |
794 | d720b93d | bellard | #endif
|
795 | 9fa3e853 | bellard | |
796 | 9fa3e853 | bellard | addr &= TARGET_PAGE_MASK; |
797 | 9fa3e853 | bellard | p = page_find(addr >> TARGET_PAGE_BITS); |
798 | 9fa3e853 | bellard | if (!p)
|
799 | 9fa3e853 | bellard | return;
|
800 | 9fa3e853 | bellard | tb = p->first_tb; |
801 | d720b93d | bellard | current_tb_modified = 0;
|
802 | d720b93d | bellard | current_tb = NULL;
|
803 | d720b93d | bellard | current_pc = 0; /* avoid warning */ |
804 | d720b93d | bellard | current_cs_base = 0; /* avoid warning */ |
805 | d720b93d | bellard | current_flags = 0; /* avoid warning */ |
806 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
807 | d720b93d | bellard | if (tb && pc != 0) { |
808 | d720b93d | bellard | current_tb = tb_find_pc(pc); |
809 | d720b93d | bellard | } |
810 | d720b93d | bellard | #endif
|
811 | 9fa3e853 | bellard | while (tb != NULL) { |
812 | 9fa3e853 | bellard | n = (long)tb & 3; |
813 | 9fa3e853 | bellard | tb = (TranslationBlock *)((long)tb & ~3); |
814 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
815 | d720b93d | bellard | if (current_tb == tb &&
|
816 | d720b93d | bellard | !(current_tb->cflags & CF_SINGLE_INSN)) { |
817 | d720b93d | bellard | /* If we are modifying the current TB, we must stop
|
818 | d720b93d | bellard | its execution. We could be more precise by checking
|
819 | d720b93d | bellard | that the modification is after the current PC, but it
|
820 | d720b93d | bellard | would require a specialized function to partially
|
821 | d720b93d | bellard | restore the CPU state */
|
822 | d720b93d | bellard | |
823 | d720b93d | bellard | current_tb_modified = 1;
|
824 | d720b93d | bellard | cpu_restore_state(current_tb, env, pc, puc); |
825 | d720b93d | bellard | #if defined(TARGET_I386)
|
826 | d720b93d | bellard | current_flags = env->hflags; |
827 | d720b93d | bellard | current_flags |= (env->eflags & (IOPL_MASK | TF_MASK | VM_MASK)); |
828 | d720b93d | bellard | current_cs_base = (target_ulong)env->segs[R_CS].base; |
829 | d720b93d | bellard | current_pc = current_cs_base + env->eip; |
830 | d720b93d | bellard | #else
|
831 | d720b93d | bellard | #error unsupported CPU
|
832 | d720b93d | bellard | #endif
|
833 | d720b93d | bellard | } |
834 | d720b93d | bellard | #endif /* TARGET_HAS_PRECISE_SMC */ |
835 | 9fa3e853 | bellard | tb_phys_invalidate(tb, addr); |
836 | 9fa3e853 | bellard | tb = tb->page_next[n]; |
837 | 9fa3e853 | bellard | } |
838 | fd6ce8f6 | bellard | p->first_tb = NULL;
|
839 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
840 | d720b93d | bellard | if (current_tb_modified) {
|
841 | d720b93d | bellard | /* we generate a block containing just the instruction
|
842 | d720b93d | bellard | modifying the memory. It will ensure that it cannot modify
|
843 | d720b93d | bellard | itself */
|
844 | ea1c1802 | bellard | env->current_tb = NULL;
|
845 | d720b93d | bellard | tb_gen_code(env, current_pc, current_cs_base, current_flags, |
846 | d720b93d | bellard | CF_SINGLE_INSN); |
847 | d720b93d | bellard | cpu_resume_from_signal(env, puc); |
848 | d720b93d | bellard | } |
849 | d720b93d | bellard | #endif
|
850 | fd6ce8f6 | bellard | } |
851 | 9fa3e853 | bellard | #endif
|
852 | fd6ce8f6 | bellard | |
853 | fd6ce8f6 | bellard | /* add the tb in the target page and protect it if necessary */
|
854 | 9fa3e853 | bellard | static inline void tb_alloc_page(TranslationBlock *tb, |
855 | 53a5960a | pbrook | unsigned int n, target_ulong page_addr) |
856 | fd6ce8f6 | bellard | { |
857 | fd6ce8f6 | bellard | PageDesc *p; |
858 | 9fa3e853 | bellard | TranslationBlock *last_first_tb; |
859 | 9fa3e853 | bellard | |
860 | 9fa3e853 | bellard | tb->page_addr[n] = page_addr; |
861 | 3a7d929e | bellard | p = page_find_alloc(page_addr >> TARGET_PAGE_BITS); |
862 | 9fa3e853 | bellard | tb->page_next[n] = p->first_tb; |
863 | 9fa3e853 | bellard | last_first_tb = p->first_tb; |
864 | 9fa3e853 | bellard | p->first_tb = (TranslationBlock *)((long)tb | n);
|
865 | 9fa3e853 | bellard | invalidate_page_bitmap(p); |
866 | fd6ce8f6 | bellard | |
867 | 107db443 | bellard | #if defined(TARGET_HAS_SMC) || 1 |
868 | d720b93d | bellard | |
869 | 9fa3e853 | bellard | #if defined(CONFIG_USER_ONLY)
|
870 | fd6ce8f6 | bellard | if (p->flags & PAGE_WRITE) {
|
871 | 53a5960a | pbrook | target_ulong addr; |
872 | 53a5960a | pbrook | PageDesc *p2; |
873 | 9fa3e853 | bellard | int prot;
|
874 | 9fa3e853 | bellard | |
875 | fd6ce8f6 | bellard | /* force the host page as non writable (writes will have a
|
876 | fd6ce8f6 | bellard | page fault + mprotect overhead) */
|
877 | 53a5960a | pbrook | page_addr &= qemu_host_page_mask; |
878 | fd6ce8f6 | bellard | prot = 0;
|
879 | 53a5960a | pbrook | for(addr = page_addr; addr < page_addr + qemu_host_page_size;
|
880 | 53a5960a | pbrook | addr += TARGET_PAGE_SIZE) { |
881 | 53a5960a | pbrook | |
882 | 53a5960a | pbrook | p2 = page_find (addr >> TARGET_PAGE_BITS); |
883 | 53a5960a | pbrook | if (!p2)
|
884 | 53a5960a | pbrook | continue;
|
885 | 53a5960a | pbrook | prot |= p2->flags; |
886 | 53a5960a | pbrook | p2->flags &= ~PAGE_WRITE; |
887 | 53a5960a | pbrook | page_get_flags(addr); |
888 | 53a5960a | pbrook | } |
889 | 53a5960a | pbrook | mprotect(g2h(page_addr), qemu_host_page_size, |
890 | fd6ce8f6 | bellard | (prot & PAGE_BITS) & ~PAGE_WRITE); |
891 | fd6ce8f6 | bellard | #ifdef DEBUG_TB_INVALIDATE
|
892 | fd6ce8f6 | bellard | printf("protecting code page: 0x%08lx\n",
|
893 | 53a5960a | pbrook | page_addr); |
894 | fd6ce8f6 | bellard | #endif
|
895 | fd6ce8f6 | bellard | } |
896 | 9fa3e853 | bellard | #else
|
897 | 9fa3e853 | bellard | /* if some code is already present, then the pages are already
|
898 | 9fa3e853 | bellard | protected. So we handle the case where only the first TB is
|
899 | 9fa3e853 | bellard | allocated in a physical page */
|
900 | 9fa3e853 | bellard | if (!last_first_tb) {
|
901 | 6a00d601 | bellard | tlb_protect_code(page_addr); |
902 | 9fa3e853 | bellard | } |
903 | 9fa3e853 | bellard | #endif
|
904 | d720b93d | bellard | |
905 | d720b93d | bellard | #endif /* TARGET_HAS_SMC */ |
906 | fd6ce8f6 | bellard | } |
907 | fd6ce8f6 | bellard | |
908 | fd6ce8f6 | bellard | /* Allocate a new translation block. Flush the translation buffer if
|
909 | fd6ce8f6 | bellard | too many translation blocks or too much generated code. */
|
910 | c27004ec | bellard | TranslationBlock *tb_alloc(target_ulong pc) |
911 | fd6ce8f6 | bellard | { |
912 | fd6ce8f6 | bellard | TranslationBlock *tb; |
913 | fd6ce8f6 | bellard | |
914 | fd6ce8f6 | bellard | if (nb_tbs >= CODE_GEN_MAX_BLOCKS ||
|
915 | fd6ce8f6 | bellard | (code_gen_ptr - code_gen_buffer) >= CODE_GEN_BUFFER_MAX_SIZE) |
916 | d4e8164f | bellard | return NULL; |
917 | fd6ce8f6 | bellard | tb = &tbs[nb_tbs++]; |
918 | fd6ce8f6 | bellard | tb->pc = pc; |
919 | b448f2f3 | bellard | tb->cflags = 0;
|
920 | d4e8164f | bellard | return tb;
|
921 | d4e8164f | bellard | } |
922 | d4e8164f | bellard | |
923 | 9fa3e853 | bellard | /* add a new TB and link it to the physical page tables. phys_page2 is
|
924 | 9fa3e853 | bellard | (-1) to indicate that only one page contains the TB. */
|
925 | 9fa3e853 | bellard | void tb_link_phys(TranslationBlock *tb,
|
926 | 9fa3e853 | bellard | target_ulong phys_pc, target_ulong phys_page2) |
927 | d4e8164f | bellard | { |
928 | 9fa3e853 | bellard | unsigned int h; |
929 | 9fa3e853 | bellard | TranslationBlock **ptb; |
930 | 9fa3e853 | bellard | |
931 | 9fa3e853 | bellard | /* add in the physical hash table */
|
932 | 9fa3e853 | bellard | h = tb_phys_hash_func(phys_pc); |
933 | 9fa3e853 | bellard | ptb = &tb_phys_hash[h]; |
934 | 9fa3e853 | bellard | tb->phys_hash_next = *ptb; |
935 | 9fa3e853 | bellard | *ptb = tb; |
936 | fd6ce8f6 | bellard | |
937 | fd6ce8f6 | bellard | /* add in the page list */
|
938 | 9fa3e853 | bellard | tb_alloc_page(tb, 0, phys_pc & TARGET_PAGE_MASK);
|
939 | 9fa3e853 | bellard | if (phys_page2 != -1) |
940 | 9fa3e853 | bellard | tb_alloc_page(tb, 1, phys_page2);
|
941 | 9fa3e853 | bellard | else
|
942 | 9fa3e853 | bellard | tb->page_addr[1] = -1; |
943 | 9fa3e853 | bellard | |
944 | d4e8164f | bellard | tb->jmp_first = (TranslationBlock *)((long)tb | 2); |
945 | d4e8164f | bellard | tb->jmp_next[0] = NULL; |
946 | d4e8164f | bellard | tb->jmp_next[1] = NULL; |
947 | b448f2f3 | bellard | #ifdef USE_CODE_COPY
|
948 | b448f2f3 | bellard | tb->cflags &= ~CF_FP_USED; |
949 | b448f2f3 | bellard | if (tb->cflags & CF_TB_FP_USED)
|
950 | b448f2f3 | bellard | tb->cflags |= CF_FP_USED; |
951 | b448f2f3 | bellard | #endif
|
952 | d4e8164f | bellard | |
953 | d4e8164f | bellard | /* init original jump addresses */
|
954 | d4e8164f | bellard | if (tb->tb_next_offset[0] != 0xffff) |
955 | d4e8164f | bellard | tb_reset_jump(tb, 0);
|
956 | d4e8164f | bellard | if (tb->tb_next_offset[1] != 0xffff) |
957 | d4e8164f | bellard | tb_reset_jump(tb, 1);
|
958 | 8a40a180 | bellard | |
959 | 8a40a180 | bellard | #ifdef DEBUG_TB_CHECK
|
960 | 8a40a180 | bellard | tb_page_check(); |
961 | 8a40a180 | bellard | #endif
|
962 | fd6ce8f6 | bellard | } |
963 | fd6ce8f6 | bellard | |
964 | 9fa3e853 | bellard | /* find the TB 'tb' such that tb[0].tc_ptr <= tc_ptr <
|
965 | 9fa3e853 | bellard | tb[1].tc_ptr. Return NULL if not found */
|
966 | 9fa3e853 | bellard | TranslationBlock *tb_find_pc(unsigned long tc_ptr) |
967 | fd6ce8f6 | bellard | { |
968 | 9fa3e853 | bellard | int m_min, m_max, m;
|
969 | 9fa3e853 | bellard | unsigned long v; |
970 | 9fa3e853 | bellard | TranslationBlock *tb; |
971 | a513fe19 | bellard | |
972 | a513fe19 | bellard | if (nb_tbs <= 0) |
973 | a513fe19 | bellard | return NULL; |
974 | a513fe19 | bellard | if (tc_ptr < (unsigned long)code_gen_buffer || |
975 | a513fe19 | bellard | tc_ptr >= (unsigned long)code_gen_ptr) |
976 | a513fe19 | bellard | return NULL; |
977 | a513fe19 | bellard | /* binary search (cf Knuth) */
|
978 | a513fe19 | bellard | m_min = 0;
|
979 | a513fe19 | bellard | m_max = nb_tbs - 1;
|
980 | a513fe19 | bellard | while (m_min <= m_max) {
|
981 | a513fe19 | bellard | m = (m_min + m_max) >> 1;
|
982 | a513fe19 | bellard | tb = &tbs[m]; |
983 | a513fe19 | bellard | v = (unsigned long)tb->tc_ptr; |
984 | a513fe19 | bellard | if (v == tc_ptr)
|
985 | a513fe19 | bellard | return tb;
|
986 | a513fe19 | bellard | else if (tc_ptr < v) { |
987 | a513fe19 | bellard | m_max = m - 1;
|
988 | a513fe19 | bellard | } else {
|
989 | a513fe19 | bellard | m_min = m + 1;
|
990 | a513fe19 | bellard | } |
991 | a513fe19 | bellard | } |
992 | a513fe19 | bellard | return &tbs[m_max];
|
993 | a513fe19 | bellard | } |
994 | 7501267e | bellard | |
995 | ea041c0e | bellard | static void tb_reset_jump_recursive(TranslationBlock *tb); |
996 | ea041c0e | bellard | |
997 | ea041c0e | bellard | static inline void tb_reset_jump_recursive2(TranslationBlock *tb, int n) |
998 | ea041c0e | bellard | { |
999 | ea041c0e | bellard | TranslationBlock *tb1, *tb_next, **ptb; |
1000 | ea041c0e | bellard | unsigned int n1; |
1001 | ea041c0e | bellard | |
1002 | ea041c0e | bellard | tb1 = tb->jmp_next[n]; |
1003 | ea041c0e | bellard | if (tb1 != NULL) { |
1004 | ea041c0e | bellard | /* find head of list */
|
1005 | ea041c0e | bellard | for(;;) {
|
1006 | ea041c0e | bellard | n1 = (long)tb1 & 3; |
1007 | ea041c0e | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
1008 | ea041c0e | bellard | if (n1 == 2) |
1009 | ea041c0e | bellard | break;
|
1010 | ea041c0e | bellard | tb1 = tb1->jmp_next[n1]; |
1011 | ea041c0e | bellard | } |
1012 | ea041c0e | bellard | /* we are now sure now that tb jumps to tb1 */
|
1013 | ea041c0e | bellard | tb_next = tb1; |
1014 | ea041c0e | bellard | |
1015 | ea041c0e | bellard | /* remove tb from the jmp_first list */
|
1016 | ea041c0e | bellard | ptb = &tb_next->jmp_first; |
1017 | ea041c0e | bellard | for(;;) {
|
1018 | ea041c0e | bellard | tb1 = *ptb; |
1019 | ea041c0e | bellard | n1 = (long)tb1 & 3; |
1020 | ea041c0e | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
1021 | ea041c0e | bellard | if (n1 == n && tb1 == tb)
|
1022 | ea041c0e | bellard | break;
|
1023 | ea041c0e | bellard | ptb = &tb1->jmp_next[n1]; |
1024 | ea041c0e | bellard | } |
1025 | ea041c0e | bellard | *ptb = tb->jmp_next[n]; |
1026 | ea041c0e | bellard | tb->jmp_next[n] = NULL;
|
1027 | ea041c0e | bellard | |
1028 | ea041c0e | bellard | /* suppress the jump to next tb in generated code */
|
1029 | ea041c0e | bellard | tb_reset_jump(tb, n); |
1030 | ea041c0e | bellard | |
1031 | 0124311e | bellard | /* suppress jumps in the tb on which we could have jumped */
|
1032 | ea041c0e | bellard | tb_reset_jump_recursive(tb_next); |
1033 | ea041c0e | bellard | } |
1034 | ea041c0e | bellard | } |
1035 | ea041c0e | bellard | |
1036 | ea041c0e | bellard | static void tb_reset_jump_recursive(TranslationBlock *tb) |
1037 | ea041c0e | bellard | { |
1038 | ea041c0e | bellard | tb_reset_jump_recursive2(tb, 0);
|
1039 | ea041c0e | bellard | tb_reset_jump_recursive2(tb, 1);
|
1040 | ea041c0e | bellard | } |
1041 | ea041c0e | bellard | |
1042 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1043 | d720b93d | bellard | static void breakpoint_invalidate(CPUState *env, target_ulong pc) |
1044 | d720b93d | bellard | { |
1045 | 9b3c35e0 | j_mayer | target_phys_addr_t addr; |
1046 | 9b3c35e0 | j_mayer | target_ulong pd; |
1047 | c2f07f81 | pbrook | ram_addr_t ram_addr; |
1048 | c2f07f81 | pbrook | PhysPageDesc *p; |
1049 | d720b93d | bellard | |
1050 | c2f07f81 | pbrook | addr = cpu_get_phys_page_debug(env, pc); |
1051 | c2f07f81 | pbrook | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
1052 | c2f07f81 | pbrook | if (!p) {
|
1053 | c2f07f81 | pbrook | pd = IO_MEM_UNASSIGNED; |
1054 | c2f07f81 | pbrook | } else {
|
1055 | c2f07f81 | pbrook | pd = p->phys_offset; |
1056 | c2f07f81 | pbrook | } |
1057 | c2f07f81 | pbrook | ram_addr = (pd & TARGET_PAGE_MASK) | (pc & ~TARGET_PAGE_MASK); |
1058 | 706cd4b5 | pbrook | tb_invalidate_phys_page_range(ram_addr, ram_addr + 1, 0); |
1059 | d720b93d | bellard | } |
1060 | c27004ec | bellard | #endif
|
1061 | d720b93d | bellard | |
1062 | 6658ffb8 | pbrook | /* Add a watchpoint. */
|
1063 | 6658ffb8 | pbrook | int cpu_watchpoint_insert(CPUState *env, target_ulong addr)
|
1064 | 6658ffb8 | pbrook | { |
1065 | 6658ffb8 | pbrook | int i;
|
1066 | 6658ffb8 | pbrook | |
1067 | 6658ffb8 | pbrook | for (i = 0; i < env->nb_watchpoints; i++) { |
1068 | 6658ffb8 | pbrook | if (addr == env->watchpoint[i].vaddr)
|
1069 | 6658ffb8 | pbrook | return 0; |
1070 | 6658ffb8 | pbrook | } |
1071 | 6658ffb8 | pbrook | if (env->nb_watchpoints >= MAX_WATCHPOINTS)
|
1072 | 6658ffb8 | pbrook | return -1; |
1073 | 6658ffb8 | pbrook | |
1074 | 6658ffb8 | pbrook | i = env->nb_watchpoints++; |
1075 | 6658ffb8 | pbrook | env->watchpoint[i].vaddr = addr; |
1076 | 6658ffb8 | pbrook | tlb_flush_page(env, addr); |
1077 | 6658ffb8 | pbrook | /* FIXME: This flush is needed because of the hack to make memory ops
|
1078 | 6658ffb8 | pbrook | terminate the TB. It can be removed once the proper IO trap and
|
1079 | 6658ffb8 | pbrook | re-execute bits are in. */
|
1080 | 6658ffb8 | pbrook | tb_flush(env); |
1081 | 6658ffb8 | pbrook | return i;
|
1082 | 6658ffb8 | pbrook | } |
1083 | 6658ffb8 | pbrook | |
1084 | 6658ffb8 | pbrook | /* Remove a watchpoint. */
|
1085 | 6658ffb8 | pbrook | int cpu_watchpoint_remove(CPUState *env, target_ulong addr)
|
1086 | 6658ffb8 | pbrook | { |
1087 | 6658ffb8 | pbrook | int i;
|
1088 | 6658ffb8 | pbrook | |
1089 | 6658ffb8 | pbrook | for (i = 0; i < env->nb_watchpoints; i++) { |
1090 | 6658ffb8 | pbrook | if (addr == env->watchpoint[i].vaddr) {
|
1091 | 6658ffb8 | pbrook | env->nb_watchpoints--; |
1092 | 6658ffb8 | pbrook | env->watchpoint[i] = env->watchpoint[env->nb_watchpoints]; |
1093 | 6658ffb8 | pbrook | tlb_flush_page(env, addr); |
1094 | 6658ffb8 | pbrook | return 0; |
1095 | 6658ffb8 | pbrook | } |
1096 | 6658ffb8 | pbrook | } |
1097 | 6658ffb8 | pbrook | return -1; |
1098 | 6658ffb8 | pbrook | } |
1099 | 6658ffb8 | pbrook | |
1100 | c33a346e | bellard | /* add a breakpoint. EXCP_DEBUG is returned by the CPU loop if a
|
1101 | c33a346e | bellard | breakpoint is reached */
|
1102 | 2e12669a | bellard | int cpu_breakpoint_insert(CPUState *env, target_ulong pc)
|
1103 | 4c3a88a2 | bellard | { |
1104 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1105 | 4c3a88a2 | bellard | int i;
|
1106 | d720b93d | bellard | |
1107 | 4c3a88a2 | bellard | for(i = 0; i < env->nb_breakpoints; i++) { |
1108 | 4c3a88a2 | bellard | if (env->breakpoints[i] == pc)
|
1109 | 4c3a88a2 | bellard | return 0; |
1110 | 4c3a88a2 | bellard | } |
1111 | 4c3a88a2 | bellard | |
1112 | 4c3a88a2 | bellard | if (env->nb_breakpoints >= MAX_BREAKPOINTS)
|
1113 | 4c3a88a2 | bellard | return -1; |
1114 | 4c3a88a2 | bellard | env->breakpoints[env->nb_breakpoints++] = pc; |
1115 | d720b93d | bellard | |
1116 | d720b93d | bellard | breakpoint_invalidate(env, pc); |
1117 | 4c3a88a2 | bellard | return 0; |
1118 | 4c3a88a2 | bellard | #else
|
1119 | 4c3a88a2 | bellard | return -1; |
1120 | 4c3a88a2 | bellard | #endif
|
1121 | 4c3a88a2 | bellard | } |
1122 | 4c3a88a2 | bellard | |
1123 | 4c3a88a2 | bellard | /* remove a breakpoint */
|
1124 | 2e12669a | bellard | int cpu_breakpoint_remove(CPUState *env, target_ulong pc)
|
1125 | 4c3a88a2 | bellard | { |
1126 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1127 | 4c3a88a2 | bellard | int i;
|
1128 | 4c3a88a2 | bellard | for(i = 0; i < env->nb_breakpoints; i++) { |
1129 | 4c3a88a2 | bellard | if (env->breakpoints[i] == pc)
|
1130 | 4c3a88a2 | bellard | goto found;
|
1131 | 4c3a88a2 | bellard | } |
1132 | 4c3a88a2 | bellard | return -1; |
1133 | 4c3a88a2 | bellard | found:
|
1134 | 4c3a88a2 | bellard | env->nb_breakpoints--; |
1135 | 1fddef4b | bellard | if (i < env->nb_breakpoints)
|
1136 | 1fddef4b | bellard | env->breakpoints[i] = env->breakpoints[env->nb_breakpoints]; |
1137 | d720b93d | bellard | |
1138 | d720b93d | bellard | breakpoint_invalidate(env, pc); |
1139 | 4c3a88a2 | bellard | return 0; |
1140 | 4c3a88a2 | bellard | #else
|
1141 | 4c3a88a2 | bellard | return -1; |
1142 | 4c3a88a2 | bellard | #endif
|
1143 | 4c3a88a2 | bellard | } |
1144 | 4c3a88a2 | bellard | |
1145 | c33a346e | bellard | /* enable or disable single step mode. EXCP_DEBUG is returned by the
|
1146 | c33a346e | bellard | CPU loop after each instruction */
|
1147 | c33a346e | bellard | void cpu_single_step(CPUState *env, int enabled) |
1148 | c33a346e | bellard | { |
1149 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1150 | c33a346e | bellard | if (env->singlestep_enabled != enabled) {
|
1151 | c33a346e | bellard | env->singlestep_enabled = enabled; |
1152 | c33a346e | bellard | /* must flush all the translated code to avoid inconsistancies */
|
1153 | 9fa3e853 | bellard | /* XXX: only flush what is necessary */
|
1154 | 0124311e | bellard | tb_flush(env); |
1155 | c33a346e | bellard | } |
1156 | c33a346e | bellard | #endif
|
1157 | c33a346e | bellard | } |
1158 | c33a346e | bellard | |
1159 | 34865134 | bellard | /* enable or disable low levels log */
|
1160 | 34865134 | bellard | void cpu_set_log(int log_flags) |
1161 | 34865134 | bellard | { |
1162 | 34865134 | bellard | loglevel = log_flags; |
1163 | 34865134 | bellard | if (loglevel && !logfile) {
|
1164 | 11fcfab4 | pbrook | logfile = fopen(logfilename, log_append ? "a" : "w"); |
1165 | 34865134 | bellard | if (!logfile) {
|
1166 | 34865134 | bellard | perror(logfilename); |
1167 | 34865134 | bellard | _exit(1);
|
1168 | 34865134 | bellard | } |
1169 | 9fa3e853 | bellard | #if !defined(CONFIG_SOFTMMU)
|
1170 | 9fa3e853 | bellard | /* must avoid mmap() usage of glibc by setting a buffer "by hand" */
|
1171 | 9fa3e853 | bellard | { |
1172 | 9fa3e853 | bellard | static uint8_t logfile_buf[4096]; |
1173 | 9fa3e853 | bellard | setvbuf(logfile, logfile_buf, _IOLBF, sizeof(logfile_buf));
|
1174 | 9fa3e853 | bellard | } |
1175 | 9fa3e853 | bellard | #else
|
1176 | 34865134 | bellard | setvbuf(logfile, NULL, _IOLBF, 0); |
1177 | 9fa3e853 | bellard | #endif
|
1178 | e735b91c | pbrook | log_append = 1;
|
1179 | e735b91c | pbrook | } |
1180 | e735b91c | pbrook | if (!loglevel && logfile) {
|
1181 | e735b91c | pbrook | fclose(logfile); |
1182 | e735b91c | pbrook | logfile = NULL;
|
1183 | 34865134 | bellard | } |
1184 | 34865134 | bellard | } |
1185 | 34865134 | bellard | |
1186 | 34865134 | bellard | void cpu_set_log_filename(const char *filename) |
1187 | 34865134 | bellard | { |
1188 | 34865134 | bellard | logfilename = strdup(filename); |
1189 | e735b91c | pbrook | if (logfile) {
|
1190 | e735b91c | pbrook | fclose(logfile); |
1191 | e735b91c | pbrook | logfile = NULL;
|
1192 | e735b91c | pbrook | } |
1193 | e735b91c | pbrook | cpu_set_log(loglevel); |
1194 | 34865134 | bellard | } |
1195 | c33a346e | bellard | |
1196 | 0124311e | bellard | /* mask must never be zero, except for A20 change call */
|
1197 | 68a79315 | bellard | void cpu_interrupt(CPUState *env, int mask) |
1198 | ea041c0e | bellard | { |
1199 | ea041c0e | bellard | TranslationBlock *tb; |
1200 | ee8b7021 | bellard | static int interrupt_lock; |
1201 | 59817ccb | bellard | |
1202 | 68a79315 | bellard | env->interrupt_request |= mask; |
1203 | ea041c0e | bellard | /* if the cpu is currently executing code, we must unlink it and
|
1204 | ea041c0e | bellard | all the potentially executing TB */
|
1205 | ea041c0e | bellard | tb = env->current_tb; |
1206 | ee8b7021 | bellard | if (tb && !testandset(&interrupt_lock)) {
|
1207 | ee8b7021 | bellard | env->current_tb = NULL;
|
1208 | ea041c0e | bellard | tb_reset_jump_recursive(tb); |
1209 | ee8b7021 | bellard | interrupt_lock = 0;
|
1210 | ea041c0e | bellard | } |
1211 | ea041c0e | bellard | } |
1212 | ea041c0e | bellard | |
1213 | b54ad049 | bellard | void cpu_reset_interrupt(CPUState *env, int mask) |
1214 | b54ad049 | bellard | { |
1215 | b54ad049 | bellard | env->interrupt_request &= ~mask; |
1216 | b54ad049 | bellard | } |
1217 | b54ad049 | bellard | |
1218 | f193c797 | bellard | CPULogItem cpu_log_items[] = { |
1219 | f193c797 | bellard | { CPU_LOG_TB_OUT_ASM, "out_asm",
|
1220 | f193c797 | bellard | "show generated host assembly code for each compiled TB" },
|
1221 | f193c797 | bellard | { CPU_LOG_TB_IN_ASM, "in_asm",
|
1222 | f193c797 | bellard | "show target assembly code for each compiled TB" },
|
1223 | f193c797 | bellard | { CPU_LOG_TB_OP, "op",
|
1224 | f193c797 | bellard | "show micro ops for each compiled TB (only usable if 'in_asm' used)" },
|
1225 | f193c797 | bellard | #ifdef TARGET_I386
|
1226 | f193c797 | bellard | { CPU_LOG_TB_OP_OPT, "op_opt",
|
1227 | f193c797 | bellard | "show micro ops after optimization for each compiled TB" },
|
1228 | f193c797 | bellard | #endif
|
1229 | f193c797 | bellard | { CPU_LOG_INT, "int",
|
1230 | f193c797 | bellard | "show interrupts/exceptions in short format" },
|
1231 | f193c797 | bellard | { CPU_LOG_EXEC, "exec",
|
1232 | f193c797 | bellard | "show trace before each executed TB (lots of logs)" },
|
1233 | 9fddaa0c | bellard | { CPU_LOG_TB_CPU, "cpu",
|
1234 | e91c8a77 | ths | "show CPU state before block translation" },
|
1235 | f193c797 | bellard | #ifdef TARGET_I386
|
1236 | f193c797 | bellard | { CPU_LOG_PCALL, "pcall",
|
1237 | f193c797 | bellard | "show protected mode far calls/returns/exceptions" },
|
1238 | f193c797 | bellard | #endif
|
1239 | 8e3a9fd2 | bellard | #ifdef DEBUG_IOPORT
|
1240 | fd872598 | bellard | { CPU_LOG_IOPORT, "ioport",
|
1241 | fd872598 | bellard | "show all i/o ports accesses" },
|
1242 | 8e3a9fd2 | bellard | #endif
|
1243 | f193c797 | bellard | { 0, NULL, NULL }, |
1244 | f193c797 | bellard | }; |
1245 | f193c797 | bellard | |
1246 | f193c797 | bellard | static int cmp1(const char *s1, int n, const char *s2) |
1247 | f193c797 | bellard | { |
1248 | f193c797 | bellard | if (strlen(s2) != n)
|
1249 | f193c797 | bellard | return 0; |
1250 | f193c797 | bellard | return memcmp(s1, s2, n) == 0; |
1251 | f193c797 | bellard | } |
1252 | f193c797 | bellard | |
1253 | f193c797 | bellard | /* takes a comma separated list of log masks. Return 0 if error. */
|
1254 | f193c797 | bellard | int cpu_str_to_log_mask(const char *str) |
1255 | f193c797 | bellard | { |
1256 | f193c797 | bellard | CPULogItem *item; |
1257 | f193c797 | bellard | int mask;
|
1258 | f193c797 | bellard | const char *p, *p1; |
1259 | f193c797 | bellard | |
1260 | f193c797 | bellard | p = str; |
1261 | f193c797 | bellard | mask = 0;
|
1262 | f193c797 | bellard | for(;;) {
|
1263 | f193c797 | bellard | p1 = strchr(p, ',');
|
1264 | f193c797 | bellard | if (!p1)
|
1265 | f193c797 | bellard | p1 = p + strlen(p); |
1266 | 8e3a9fd2 | bellard | if(cmp1(p,p1-p,"all")) { |
1267 | 8e3a9fd2 | bellard | for(item = cpu_log_items; item->mask != 0; item++) { |
1268 | 8e3a9fd2 | bellard | mask |= item->mask; |
1269 | 8e3a9fd2 | bellard | } |
1270 | 8e3a9fd2 | bellard | } else {
|
1271 | f193c797 | bellard | for(item = cpu_log_items; item->mask != 0; item++) { |
1272 | f193c797 | bellard | if (cmp1(p, p1 - p, item->name))
|
1273 | f193c797 | bellard | goto found;
|
1274 | f193c797 | bellard | } |
1275 | f193c797 | bellard | return 0; |
1276 | 8e3a9fd2 | bellard | } |
1277 | f193c797 | bellard | found:
|
1278 | f193c797 | bellard | mask |= item->mask; |
1279 | f193c797 | bellard | if (*p1 != ',') |
1280 | f193c797 | bellard | break;
|
1281 | f193c797 | bellard | p = p1 + 1;
|
1282 | f193c797 | bellard | } |
1283 | f193c797 | bellard | return mask;
|
1284 | f193c797 | bellard | } |
1285 | ea041c0e | bellard | |
1286 | 7501267e | bellard | void cpu_abort(CPUState *env, const char *fmt, ...) |
1287 | 7501267e | bellard | { |
1288 | 7501267e | bellard | va_list ap; |
1289 | 7501267e | bellard | |
1290 | 7501267e | bellard | va_start(ap, fmt); |
1291 | 7501267e | bellard | fprintf(stderr, "qemu: fatal: ");
|
1292 | 7501267e | bellard | vfprintf(stderr, fmt, ap); |
1293 | 7501267e | bellard | fprintf(stderr, "\n");
|
1294 | 7501267e | bellard | #ifdef TARGET_I386
|
1295 | 7fe48483 | bellard | cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU | X86_DUMP_CCOP); |
1296 | 7fe48483 | bellard | #else
|
1297 | 7fe48483 | bellard | cpu_dump_state(env, stderr, fprintf, 0);
|
1298 | 7501267e | bellard | #endif
|
1299 | 7501267e | bellard | va_end(ap); |
1300 | 924edcae | balrog | if (logfile) {
|
1301 | 924edcae | balrog | fflush(logfile); |
1302 | 924edcae | balrog | fclose(logfile); |
1303 | 924edcae | balrog | } |
1304 | 7501267e | bellard | abort(); |
1305 | 7501267e | bellard | } |
1306 | 7501267e | bellard | |
1307 | c5be9f08 | ths | CPUState *cpu_copy(CPUState *env) |
1308 | c5be9f08 | ths | { |
1309 | c5be9f08 | ths | CPUState *new_env = cpu_init(); |
1310 | c5be9f08 | ths | /* preserve chaining and index */
|
1311 | c5be9f08 | ths | CPUState *next_cpu = new_env->next_cpu; |
1312 | c5be9f08 | ths | int cpu_index = new_env->cpu_index;
|
1313 | c5be9f08 | ths | memcpy(new_env, env, sizeof(CPUState));
|
1314 | c5be9f08 | ths | new_env->next_cpu = next_cpu; |
1315 | c5be9f08 | ths | new_env->cpu_index = cpu_index; |
1316 | c5be9f08 | ths | return new_env;
|
1317 | c5be9f08 | ths | } |
1318 | c5be9f08 | ths | |
1319 | 0124311e | bellard | #if !defined(CONFIG_USER_ONLY)
|
1320 | 0124311e | bellard | |
1321 | ee8b7021 | bellard | /* NOTE: if flush_global is true, also flush global entries (not
|
1322 | ee8b7021 | bellard | implemented yet) */
|
1323 | ee8b7021 | bellard | void tlb_flush(CPUState *env, int flush_global) |
1324 | 33417e70 | bellard | { |
1325 | 33417e70 | bellard | int i;
|
1326 | 0124311e | bellard | |
1327 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
1328 | 9fa3e853 | bellard | printf("tlb_flush:\n");
|
1329 | 9fa3e853 | bellard | #endif
|
1330 | 0124311e | bellard | /* must reset current TB so that interrupts cannot modify the
|
1331 | 0124311e | bellard | links while we are modifying them */
|
1332 | 0124311e | bellard | env->current_tb = NULL;
|
1333 | 0124311e | bellard | |
1334 | 33417e70 | bellard | for(i = 0; i < CPU_TLB_SIZE; i++) { |
1335 | 84b7b8e7 | bellard | env->tlb_table[0][i].addr_read = -1; |
1336 | 84b7b8e7 | bellard | env->tlb_table[0][i].addr_write = -1; |
1337 | 84b7b8e7 | bellard | env->tlb_table[0][i].addr_code = -1; |
1338 | 84b7b8e7 | bellard | env->tlb_table[1][i].addr_read = -1; |
1339 | 84b7b8e7 | bellard | env->tlb_table[1][i].addr_write = -1; |
1340 | 84b7b8e7 | bellard | env->tlb_table[1][i].addr_code = -1; |
1341 | 6fa4cea9 | j_mayer | #if (NB_MMU_MODES >= 3) |
1342 | 6fa4cea9 | j_mayer | env->tlb_table[2][i].addr_read = -1; |
1343 | 6fa4cea9 | j_mayer | env->tlb_table[2][i].addr_write = -1; |
1344 | 6fa4cea9 | j_mayer | env->tlb_table[2][i].addr_code = -1; |
1345 | 6fa4cea9 | j_mayer | #if (NB_MMU_MODES == 4) |
1346 | 6fa4cea9 | j_mayer | env->tlb_table[3][i].addr_read = -1; |
1347 | 6fa4cea9 | j_mayer | env->tlb_table[3][i].addr_write = -1; |
1348 | 6fa4cea9 | j_mayer | env->tlb_table[3][i].addr_code = -1; |
1349 | 6fa4cea9 | j_mayer | #endif
|
1350 | 6fa4cea9 | j_mayer | #endif
|
1351 | 33417e70 | bellard | } |
1352 | 9fa3e853 | bellard | |
1353 | 8a40a180 | bellard | memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *)); |
1354 | 9fa3e853 | bellard | |
1355 | 9fa3e853 | bellard | #if !defined(CONFIG_SOFTMMU)
|
1356 | 9fa3e853 | bellard | munmap((void *)MMAP_AREA_START, MMAP_AREA_END - MMAP_AREA_START);
|
1357 | 9fa3e853 | bellard | #endif
|
1358 | 0a962c02 | bellard | #ifdef USE_KQEMU
|
1359 | 0a962c02 | bellard | if (env->kqemu_enabled) {
|
1360 | 0a962c02 | bellard | kqemu_flush(env, flush_global); |
1361 | 0a962c02 | bellard | } |
1362 | 0a962c02 | bellard | #endif
|
1363 | e3db7226 | bellard | tlb_flush_count++; |
1364 | 33417e70 | bellard | } |
1365 | 33417e70 | bellard | |
1366 | 274da6b2 | bellard | static inline void tlb_flush_entry(CPUTLBEntry *tlb_entry, target_ulong addr) |
1367 | 61382a50 | bellard | { |
1368 | 84b7b8e7 | bellard | if (addr == (tlb_entry->addr_read &
|
1369 | 84b7b8e7 | bellard | (TARGET_PAGE_MASK | TLB_INVALID_MASK)) || |
1370 | 84b7b8e7 | bellard | addr == (tlb_entry->addr_write & |
1371 | 84b7b8e7 | bellard | (TARGET_PAGE_MASK | TLB_INVALID_MASK)) || |
1372 | 84b7b8e7 | bellard | addr == (tlb_entry->addr_code & |
1373 | 84b7b8e7 | bellard | (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { |
1374 | 84b7b8e7 | bellard | tlb_entry->addr_read = -1;
|
1375 | 84b7b8e7 | bellard | tlb_entry->addr_write = -1;
|
1376 | 84b7b8e7 | bellard | tlb_entry->addr_code = -1;
|
1377 | 84b7b8e7 | bellard | } |
1378 | 61382a50 | bellard | } |
1379 | 61382a50 | bellard | |
1380 | 2e12669a | bellard | void tlb_flush_page(CPUState *env, target_ulong addr)
|
1381 | 33417e70 | bellard | { |
1382 | 8a40a180 | bellard | int i;
|
1383 | 9fa3e853 | bellard | TranslationBlock *tb; |
1384 | 0124311e | bellard | |
1385 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
1386 | 108c49b8 | bellard | printf("tlb_flush_page: " TARGET_FMT_lx "\n", addr); |
1387 | 9fa3e853 | bellard | #endif
|
1388 | 0124311e | bellard | /* must reset current TB so that interrupts cannot modify the
|
1389 | 0124311e | bellard | links while we are modifying them */
|
1390 | 0124311e | bellard | env->current_tb = NULL;
|
1391 | 61382a50 | bellard | |
1392 | 61382a50 | bellard | addr &= TARGET_PAGE_MASK; |
1393 | 61382a50 | bellard | i = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
1394 | 84b7b8e7 | bellard | tlb_flush_entry(&env->tlb_table[0][i], addr);
|
1395 | 84b7b8e7 | bellard | tlb_flush_entry(&env->tlb_table[1][i], addr);
|
1396 | 6fa4cea9 | j_mayer | #if (NB_MMU_MODES >= 3) |
1397 | 6fa4cea9 | j_mayer | tlb_flush_entry(&env->tlb_table[2][i], addr);
|
1398 | 6fa4cea9 | j_mayer | #if (NB_MMU_MODES == 4) |
1399 | 6fa4cea9 | j_mayer | tlb_flush_entry(&env->tlb_table[3][i], addr);
|
1400 | 6fa4cea9 | j_mayer | #endif
|
1401 | 6fa4cea9 | j_mayer | #endif
|
1402 | 0124311e | bellard | |
1403 | b362e5e0 | pbrook | /* Discard jump cache entries for any tb which might potentially
|
1404 | b362e5e0 | pbrook | overlap the flushed page. */
|
1405 | b362e5e0 | pbrook | i = tb_jmp_cache_hash_page(addr - TARGET_PAGE_SIZE); |
1406 | b362e5e0 | pbrook | memset (&env->tb_jmp_cache[i], 0, TB_JMP_PAGE_SIZE * sizeof(tb)); |
1407 | b362e5e0 | pbrook | |
1408 | b362e5e0 | pbrook | i = tb_jmp_cache_hash_page(addr); |
1409 | b362e5e0 | pbrook | memset (&env->tb_jmp_cache[i], 0, TB_JMP_PAGE_SIZE * sizeof(tb)); |
1410 | 9fa3e853 | bellard | |
1411 | 0124311e | bellard | #if !defined(CONFIG_SOFTMMU)
|
1412 | 9fa3e853 | bellard | if (addr < MMAP_AREA_END)
|
1413 | 0124311e | bellard | munmap((void *)addr, TARGET_PAGE_SIZE);
|
1414 | 61382a50 | bellard | #endif
|
1415 | 0a962c02 | bellard | #ifdef USE_KQEMU
|
1416 | 0a962c02 | bellard | if (env->kqemu_enabled) {
|
1417 | 0a962c02 | bellard | kqemu_flush_page(env, addr); |
1418 | 0a962c02 | bellard | } |
1419 | 0a962c02 | bellard | #endif
|
1420 | 9fa3e853 | bellard | } |
1421 | 9fa3e853 | bellard | |
1422 | 9fa3e853 | bellard | /* update the TLBs so that writes to code in the virtual page 'addr'
|
1423 | 9fa3e853 | bellard | can be detected */
|
1424 | 6a00d601 | bellard | static void tlb_protect_code(ram_addr_t ram_addr) |
1425 | 9fa3e853 | bellard | { |
1426 | 6a00d601 | bellard | cpu_physical_memory_reset_dirty(ram_addr, |
1427 | 6a00d601 | bellard | ram_addr + TARGET_PAGE_SIZE, |
1428 | 6a00d601 | bellard | CODE_DIRTY_FLAG); |
1429 | 9fa3e853 | bellard | } |
1430 | 9fa3e853 | bellard | |
1431 | 9fa3e853 | bellard | /* update the TLB so that writes in physical page 'phys_addr' are no longer
|
1432 | 3a7d929e | bellard | tested for self modifying code */
|
1433 | 3a7d929e | bellard | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, |
1434 | 3a7d929e | bellard | target_ulong vaddr) |
1435 | 9fa3e853 | bellard | { |
1436 | 3a7d929e | bellard | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] |= CODE_DIRTY_FLAG; |
1437 | 1ccde1cb | bellard | } |
1438 | 1ccde1cb | bellard | |
1439 | 1ccde1cb | bellard | static inline void tlb_reset_dirty_range(CPUTLBEntry *tlb_entry, |
1440 | 1ccde1cb | bellard | unsigned long start, unsigned long length) |
1441 | 1ccde1cb | bellard | { |
1442 | 1ccde1cb | bellard | unsigned long addr; |
1443 | 84b7b8e7 | bellard | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) {
|
1444 | 84b7b8e7 | bellard | addr = (tlb_entry->addr_write & TARGET_PAGE_MASK) + tlb_entry->addend; |
1445 | 1ccde1cb | bellard | if ((addr - start) < length) {
|
1446 | 84b7b8e7 | bellard | tlb_entry->addr_write = (tlb_entry->addr_write & TARGET_PAGE_MASK) | IO_MEM_NOTDIRTY; |
1447 | 1ccde1cb | bellard | } |
1448 | 1ccde1cb | bellard | } |
1449 | 1ccde1cb | bellard | } |
1450 | 1ccde1cb | bellard | |
1451 | 3a7d929e | bellard | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,
|
1452 | 0a962c02 | bellard | int dirty_flags)
|
1453 | 1ccde1cb | bellard | { |
1454 | 1ccde1cb | bellard | CPUState *env; |
1455 | 4f2ac237 | bellard | unsigned long length, start1; |
1456 | 0a962c02 | bellard | int i, mask, len;
|
1457 | 0a962c02 | bellard | uint8_t *p; |
1458 | 1ccde1cb | bellard | |
1459 | 1ccde1cb | bellard | start &= TARGET_PAGE_MASK; |
1460 | 1ccde1cb | bellard | end = TARGET_PAGE_ALIGN(end); |
1461 | 1ccde1cb | bellard | |
1462 | 1ccde1cb | bellard | length = end - start; |
1463 | 1ccde1cb | bellard | if (length == 0) |
1464 | 1ccde1cb | bellard | return;
|
1465 | 0a962c02 | bellard | len = length >> TARGET_PAGE_BITS; |
1466 | 3a7d929e | bellard | #ifdef USE_KQEMU
|
1467 | 6a00d601 | bellard | /* XXX: should not depend on cpu context */
|
1468 | 6a00d601 | bellard | env = first_cpu; |
1469 | 3a7d929e | bellard | if (env->kqemu_enabled) {
|
1470 | f23db169 | bellard | ram_addr_t addr; |
1471 | f23db169 | bellard | addr = start; |
1472 | f23db169 | bellard | for(i = 0; i < len; i++) { |
1473 | f23db169 | bellard | kqemu_set_notdirty(env, addr); |
1474 | f23db169 | bellard | addr += TARGET_PAGE_SIZE; |
1475 | f23db169 | bellard | } |
1476 | 3a7d929e | bellard | } |
1477 | 3a7d929e | bellard | #endif
|
1478 | f23db169 | bellard | mask = ~dirty_flags; |
1479 | f23db169 | bellard | p = phys_ram_dirty + (start >> TARGET_PAGE_BITS); |
1480 | f23db169 | bellard | for(i = 0; i < len; i++) |
1481 | f23db169 | bellard | p[i] &= mask; |
1482 | f23db169 | bellard | |
1483 | 1ccde1cb | bellard | /* we modify the TLB cache so that the dirty bit will be set again
|
1484 | 1ccde1cb | bellard | when accessing the range */
|
1485 | 59817ccb | bellard | start1 = start + (unsigned long)phys_ram_base; |
1486 | 6a00d601 | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
1487 | 6a00d601 | bellard | for(i = 0; i < CPU_TLB_SIZE; i++) |
1488 | 84b7b8e7 | bellard | tlb_reset_dirty_range(&env->tlb_table[0][i], start1, length);
|
1489 | 6a00d601 | bellard | for(i = 0; i < CPU_TLB_SIZE; i++) |
1490 | 84b7b8e7 | bellard | tlb_reset_dirty_range(&env->tlb_table[1][i], start1, length);
|
1491 | 6fa4cea9 | j_mayer | #if (NB_MMU_MODES >= 3) |
1492 | 6fa4cea9 | j_mayer | for(i = 0; i < CPU_TLB_SIZE; i++) |
1493 | 6fa4cea9 | j_mayer | tlb_reset_dirty_range(&env->tlb_table[2][i], start1, length);
|
1494 | 6fa4cea9 | j_mayer | #if (NB_MMU_MODES == 4) |
1495 | 6fa4cea9 | j_mayer | for(i = 0; i < CPU_TLB_SIZE; i++) |
1496 | 6fa4cea9 | j_mayer | tlb_reset_dirty_range(&env->tlb_table[3][i], start1, length);
|
1497 | 6fa4cea9 | j_mayer | #endif
|
1498 | 6fa4cea9 | j_mayer | #endif
|
1499 | 6a00d601 | bellard | } |
1500 | 59817ccb | bellard | |
1501 | 59817ccb | bellard | #if !defined(CONFIG_SOFTMMU)
|
1502 | 59817ccb | bellard | /* XXX: this is expensive */
|
1503 | 59817ccb | bellard | { |
1504 | 59817ccb | bellard | VirtPageDesc *p; |
1505 | 59817ccb | bellard | int j;
|
1506 | 59817ccb | bellard | target_ulong addr; |
1507 | 59817ccb | bellard | |
1508 | 59817ccb | bellard | for(i = 0; i < L1_SIZE; i++) { |
1509 | 59817ccb | bellard | p = l1_virt_map[i]; |
1510 | 59817ccb | bellard | if (p) {
|
1511 | 59817ccb | bellard | addr = i << (TARGET_PAGE_BITS + L2_BITS); |
1512 | 59817ccb | bellard | for(j = 0; j < L2_SIZE; j++) { |
1513 | 59817ccb | bellard | if (p->valid_tag == virt_valid_tag &&
|
1514 | 59817ccb | bellard | p->phys_addr >= start && p->phys_addr < end && |
1515 | 59817ccb | bellard | (p->prot & PROT_WRITE)) { |
1516 | 59817ccb | bellard | if (addr < MMAP_AREA_END) {
|
1517 | 59817ccb | bellard | mprotect((void *)addr, TARGET_PAGE_SIZE,
|
1518 | 59817ccb | bellard | p->prot & ~PROT_WRITE); |
1519 | 59817ccb | bellard | } |
1520 | 59817ccb | bellard | } |
1521 | 59817ccb | bellard | addr += TARGET_PAGE_SIZE; |
1522 | 59817ccb | bellard | p++; |
1523 | 59817ccb | bellard | } |
1524 | 59817ccb | bellard | } |
1525 | 59817ccb | bellard | } |
1526 | 59817ccb | bellard | } |
1527 | 59817ccb | bellard | #endif
|
1528 | 1ccde1cb | bellard | } |
1529 | 1ccde1cb | bellard | |
1530 | 3a7d929e | bellard | static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry) |
1531 | 3a7d929e | bellard | { |
1532 | 3a7d929e | bellard | ram_addr_t ram_addr; |
1533 | 3a7d929e | bellard | |
1534 | 84b7b8e7 | bellard | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) {
|
1535 | 84b7b8e7 | bellard | ram_addr = (tlb_entry->addr_write & TARGET_PAGE_MASK) + |
1536 | 3a7d929e | bellard | tlb_entry->addend - (unsigned long)phys_ram_base; |
1537 | 3a7d929e | bellard | if (!cpu_physical_memory_is_dirty(ram_addr)) {
|
1538 | 84b7b8e7 | bellard | tlb_entry->addr_write |= IO_MEM_NOTDIRTY; |
1539 | 3a7d929e | bellard | } |
1540 | 3a7d929e | bellard | } |
1541 | 3a7d929e | bellard | } |
1542 | 3a7d929e | bellard | |
1543 | 3a7d929e | bellard | /* update the TLB according to the current state of the dirty bits */
|
1544 | 3a7d929e | bellard | void cpu_tlb_update_dirty(CPUState *env)
|
1545 | 3a7d929e | bellard | { |
1546 | 3a7d929e | bellard | int i;
|
1547 | 3a7d929e | bellard | for(i = 0; i < CPU_TLB_SIZE; i++) |
1548 | 84b7b8e7 | bellard | tlb_update_dirty(&env->tlb_table[0][i]);
|
1549 | 3a7d929e | bellard | for(i = 0; i < CPU_TLB_SIZE; i++) |
1550 | 84b7b8e7 | bellard | tlb_update_dirty(&env->tlb_table[1][i]);
|
1551 | 6fa4cea9 | j_mayer | #if (NB_MMU_MODES >= 3) |
1552 | 6fa4cea9 | j_mayer | for(i = 0; i < CPU_TLB_SIZE; i++) |
1553 | 6fa4cea9 | j_mayer | tlb_update_dirty(&env->tlb_table[2][i]);
|
1554 | 6fa4cea9 | j_mayer | #if (NB_MMU_MODES == 4) |
1555 | 6fa4cea9 | j_mayer | for(i = 0; i < CPU_TLB_SIZE; i++) |
1556 | 6fa4cea9 | j_mayer | tlb_update_dirty(&env->tlb_table[3][i]);
|
1557 | 6fa4cea9 | j_mayer | #endif
|
1558 | 6fa4cea9 | j_mayer | #endif
|
1559 | 3a7d929e | bellard | } |
1560 | 3a7d929e | bellard | |
1561 | 1ccde1cb | bellard | static inline void tlb_set_dirty1(CPUTLBEntry *tlb_entry, |
1562 | 108c49b8 | bellard | unsigned long start) |
1563 | 1ccde1cb | bellard | { |
1564 | 1ccde1cb | bellard | unsigned long addr; |
1565 | 84b7b8e7 | bellard | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_NOTDIRTY) {
|
1566 | 84b7b8e7 | bellard | addr = (tlb_entry->addr_write & TARGET_PAGE_MASK) + tlb_entry->addend; |
1567 | 1ccde1cb | bellard | if (addr == start) {
|
1568 | 84b7b8e7 | bellard | tlb_entry->addr_write = (tlb_entry->addr_write & TARGET_PAGE_MASK) | IO_MEM_RAM; |
1569 | 1ccde1cb | bellard | } |
1570 | 1ccde1cb | bellard | } |
1571 | 1ccde1cb | bellard | } |
1572 | 1ccde1cb | bellard | |
1573 | 1ccde1cb | bellard | /* update the TLB corresponding to virtual page vaddr and phys addr
|
1574 | 1ccde1cb | bellard | addr so that it is no longer dirty */
|
1575 | 6a00d601 | bellard | static inline void tlb_set_dirty(CPUState *env, |
1576 | 6a00d601 | bellard | unsigned long addr, target_ulong vaddr) |
1577 | 1ccde1cb | bellard | { |
1578 | 1ccde1cb | bellard | int i;
|
1579 | 1ccde1cb | bellard | |
1580 | 1ccde1cb | bellard | addr &= TARGET_PAGE_MASK; |
1581 | 1ccde1cb | bellard | i = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
1582 | 84b7b8e7 | bellard | tlb_set_dirty1(&env->tlb_table[0][i], addr);
|
1583 | 84b7b8e7 | bellard | tlb_set_dirty1(&env->tlb_table[1][i], addr);
|
1584 | 6fa4cea9 | j_mayer | #if (NB_MMU_MODES >= 3) |
1585 | 6fa4cea9 | j_mayer | tlb_set_dirty1(&env->tlb_table[2][i], addr);
|
1586 | 6fa4cea9 | j_mayer | #if (NB_MMU_MODES == 4) |
1587 | 6fa4cea9 | j_mayer | tlb_set_dirty1(&env->tlb_table[3][i], addr);
|
1588 | 6fa4cea9 | j_mayer | #endif
|
1589 | 6fa4cea9 | j_mayer | #endif
|
1590 | 9fa3e853 | bellard | } |
1591 | 9fa3e853 | bellard | |
1592 | 59817ccb | bellard | /* add a new TLB entry. At most one entry for a given virtual address
|
1593 | 59817ccb | bellard | is permitted. Return 0 if OK or 2 if the page could not be mapped
|
1594 | 59817ccb | bellard | (can only happen in non SOFTMMU mode for I/O pages or pages
|
1595 | 59817ccb | bellard | conflicting with the host address space). */
|
1596 | 84b7b8e7 | bellard | int tlb_set_page_exec(CPUState *env, target_ulong vaddr,
|
1597 | 84b7b8e7 | bellard | target_phys_addr_t paddr, int prot,
|
1598 | 84b7b8e7 | bellard | int is_user, int is_softmmu) |
1599 | 9fa3e853 | bellard | { |
1600 | 92e873b9 | bellard | PhysPageDesc *p; |
1601 | 4f2ac237 | bellard | unsigned long pd; |
1602 | 9fa3e853 | bellard | unsigned int index; |
1603 | 4f2ac237 | bellard | target_ulong address; |
1604 | 108c49b8 | bellard | target_phys_addr_t addend; |
1605 | 9fa3e853 | bellard | int ret;
|
1606 | 84b7b8e7 | bellard | CPUTLBEntry *te; |
1607 | 6658ffb8 | pbrook | int i;
|
1608 | 9fa3e853 | bellard | |
1609 | 92e873b9 | bellard | p = phys_page_find(paddr >> TARGET_PAGE_BITS); |
1610 | 9fa3e853 | bellard | if (!p) {
|
1611 | 9fa3e853 | bellard | pd = IO_MEM_UNASSIGNED; |
1612 | 9fa3e853 | bellard | } else {
|
1613 | 9fa3e853 | bellard | pd = p->phys_offset; |
1614 | 9fa3e853 | bellard | } |
1615 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
1616 | 3a7d929e | bellard | printf("tlb_set_page: vaddr=" TARGET_FMT_lx " paddr=0x%08x prot=%x u=%d smmu=%d pd=0x%08lx\n", |
1617 | 84b7b8e7 | bellard | vaddr, (int)paddr, prot, is_user, is_softmmu, pd);
|
1618 | 9fa3e853 | bellard | #endif
|
1619 | 9fa3e853 | bellard | |
1620 | 9fa3e853 | bellard | ret = 0;
|
1621 | 9fa3e853 | bellard | #if !defined(CONFIG_SOFTMMU)
|
1622 | 9fa3e853 | bellard | if (is_softmmu)
|
1623 | 9fa3e853 | bellard | #endif
|
1624 | 9fa3e853 | bellard | { |
1625 | 2a4188a3 | bellard | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) {
|
1626 | 9fa3e853 | bellard | /* IO memory case */
|
1627 | 9fa3e853 | bellard | address = vaddr | pd; |
1628 | 9fa3e853 | bellard | addend = paddr; |
1629 | 9fa3e853 | bellard | } else {
|
1630 | 9fa3e853 | bellard | /* standard memory */
|
1631 | 9fa3e853 | bellard | address = vaddr; |
1632 | 9fa3e853 | bellard | addend = (unsigned long)phys_ram_base + (pd & TARGET_PAGE_MASK); |
1633 | 9fa3e853 | bellard | } |
1634 | 6658ffb8 | pbrook | |
1635 | 6658ffb8 | pbrook | /* Make accesses to pages with watchpoints go via the
|
1636 | 6658ffb8 | pbrook | watchpoint trap routines. */
|
1637 | 6658ffb8 | pbrook | for (i = 0; i < env->nb_watchpoints; i++) { |
1638 | 6658ffb8 | pbrook | if (vaddr == (env->watchpoint[i].vaddr & TARGET_PAGE_MASK)) {
|
1639 | 6658ffb8 | pbrook | if (address & ~TARGET_PAGE_MASK) {
|
1640 | d79acba4 | balrog | env->watchpoint[i].addend = 0;
|
1641 | 6658ffb8 | pbrook | address = vaddr | io_mem_watch; |
1642 | 6658ffb8 | pbrook | } else {
|
1643 | d79acba4 | balrog | env->watchpoint[i].addend = pd - paddr + |
1644 | d79acba4 | balrog | (unsigned long) phys_ram_base; |
1645 | 6658ffb8 | pbrook | /* TODO: Figure out how to make read watchpoints coexist
|
1646 | 6658ffb8 | pbrook | with code. */
|
1647 | 6658ffb8 | pbrook | pd = (pd & TARGET_PAGE_MASK) | io_mem_watch | IO_MEM_ROMD; |
1648 | 6658ffb8 | pbrook | } |
1649 | 6658ffb8 | pbrook | } |
1650 | 6658ffb8 | pbrook | } |
1651 | d79acba4 | balrog | |
1652 | 90f18422 | bellard | index = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
1653 | 9fa3e853 | bellard | addend -= vaddr; |
1654 | 84b7b8e7 | bellard | te = &env->tlb_table[is_user][index]; |
1655 | 84b7b8e7 | bellard | te->addend = addend; |
1656 | 67b915a5 | bellard | if (prot & PAGE_READ) {
|
1657 | 84b7b8e7 | bellard | te->addr_read = address; |
1658 | 84b7b8e7 | bellard | } else {
|
1659 | 84b7b8e7 | bellard | te->addr_read = -1;
|
1660 | 84b7b8e7 | bellard | } |
1661 | 84b7b8e7 | bellard | if (prot & PAGE_EXEC) {
|
1662 | 84b7b8e7 | bellard | te->addr_code = address; |
1663 | 9fa3e853 | bellard | } else {
|
1664 | 84b7b8e7 | bellard | te->addr_code = -1;
|
1665 | 9fa3e853 | bellard | } |
1666 | 67b915a5 | bellard | if (prot & PAGE_WRITE) {
|
1667 | 856074ec | bellard | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_ROM ||
|
1668 | 856074ec | bellard | (pd & IO_MEM_ROMD)) { |
1669 | 856074ec | bellard | /* write access calls the I/O callback */
|
1670 | 856074ec | bellard | te->addr_write = vaddr | |
1671 | 856074ec | bellard | (pd & ~(TARGET_PAGE_MASK | IO_MEM_ROMD)); |
1672 | 3a7d929e | bellard | } else if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM && |
1673 | 1ccde1cb | bellard | !cpu_physical_memory_is_dirty(pd)) { |
1674 | 84b7b8e7 | bellard | te->addr_write = vaddr | IO_MEM_NOTDIRTY; |
1675 | 9fa3e853 | bellard | } else {
|
1676 | 84b7b8e7 | bellard | te->addr_write = address; |
1677 | 9fa3e853 | bellard | } |
1678 | 9fa3e853 | bellard | } else {
|
1679 | 84b7b8e7 | bellard | te->addr_write = -1;
|
1680 | 9fa3e853 | bellard | } |
1681 | 9fa3e853 | bellard | } |
1682 | 9fa3e853 | bellard | #if !defined(CONFIG_SOFTMMU)
|
1683 | 9fa3e853 | bellard | else {
|
1684 | 9fa3e853 | bellard | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM) {
|
1685 | 9fa3e853 | bellard | /* IO access: no mapping is done as it will be handled by the
|
1686 | 9fa3e853 | bellard | soft MMU */
|
1687 | 9fa3e853 | bellard | if (!(env->hflags & HF_SOFTMMU_MASK))
|
1688 | 9fa3e853 | bellard | ret = 2;
|
1689 | 9fa3e853 | bellard | } else {
|
1690 | 9fa3e853 | bellard | void *map_addr;
|
1691 | 59817ccb | bellard | |
1692 | 59817ccb | bellard | if (vaddr >= MMAP_AREA_END) {
|
1693 | 59817ccb | bellard | ret = 2;
|
1694 | 59817ccb | bellard | } else {
|
1695 | 59817ccb | bellard | if (prot & PROT_WRITE) {
|
1696 | 59817ccb | bellard | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_ROM ||
|
1697 | d720b93d | bellard | #if defined(TARGET_HAS_SMC) || 1 |
1698 | 59817ccb | bellard | first_tb || |
1699 | d720b93d | bellard | #endif
|
1700 | 59817ccb | bellard | ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM && |
1701 | 59817ccb | bellard | !cpu_physical_memory_is_dirty(pd))) { |
1702 | 59817ccb | bellard | /* ROM: we do as if code was inside */
|
1703 | 59817ccb | bellard | /* if code is present, we only map as read only and save the
|
1704 | 59817ccb | bellard | original mapping */
|
1705 | 59817ccb | bellard | VirtPageDesc *vp; |
1706 | 59817ccb | bellard | |
1707 | 90f18422 | bellard | vp = virt_page_find_alloc(vaddr >> TARGET_PAGE_BITS, 1);
|
1708 | 59817ccb | bellard | vp->phys_addr = pd; |
1709 | 59817ccb | bellard | vp->prot = prot; |
1710 | 59817ccb | bellard | vp->valid_tag = virt_valid_tag; |
1711 | 59817ccb | bellard | prot &= ~PAGE_WRITE; |
1712 | 59817ccb | bellard | } |
1713 | 59817ccb | bellard | } |
1714 | 59817ccb | bellard | map_addr = mmap((void *)vaddr, TARGET_PAGE_SIZE, prot,
|
1715 | 59817ccb | bellard | MAP_SHARED | MAP_FIXED, phys_ram_fd, (pd & TARGET_PAGE_MASK)); |
1716 | 59817ccb | bellard | if (map_addr == MAP_FAILED) {
|
1717 | 59817ccb | bellard | cpu_abort(env, "mmap failed when mapped physical address 0x%08x to virtual address 0x%08x\n",
|
1718 | 59817ccb | bellard | paddr, vaddr); |
1719 | 9fa3e853 | bellard | } |
1720 | 9fa3e853 | bellard | } |
1721 | 9fa3e853 | bellard | } |
1722 | 9fa3e853 | bellard | } |
1723 | 9fa3e853 | bellard | #endif
|
1724 | 9fa3e853 | bellard | return ret;
|
1725 | 9fa3e853 | bellard | } |
1726 | 9fa3e853 | bellard | |
1727 | 9fa3e853 | bellard | /* called from signal handler: invalidate the code and unprotect the
|
1728 | 9fa3e853 | bellard | page. Return TRUE if the fault was succesfully handled. */
|
1729 | 53a5960a | pbrook | int page_unprotect(target_ulong addr, unsigned long pc, void *puc) |
1730 | 9fa3e853 | bellard | { |
1731 | 9fa3e853 | bellard | #if !defined(CONFIG_SOFTMMU)
|
1732 | 9fa3e853 | bellard | VirtPageDesc *vp; |
1733 | 9fa3e853 | bellard | |
1734 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
1735 | 9fa3e853 | bellard | printf("page_unprotect: addr=0x%08x\n", addr);
|
1736 | 9fa3e853 | bellard | #endif
|
1737 | 9fa3e853 | bellard | addr &= TARGET_PAGE_MASK; |
1738 | 59817ccb | bellard | |
1739 | 59817ccb | bellard | /* if it is not mapped, no need to worry here */
|
1740 | 59817ccb | bellard | if (addr >= MMAP_AREA_END)
|
1741 | 59817ccb | bellard | return 0; |
1742 | 9fa3e853 | bellard | vp = virt_page_find(addr >> TARGET_PAGE_BITS); |
1743 | 9fa3e853 | bellard | if (!vp)
|
1744 | 9fa3e853 | bellard | return 0; |
1745 | 9fa3e853 | bellard | /* NOTE: in this case, validate_tag is _not_ tested as it
|
1746 | 9fa3e853 | bellard | validates only the code TLB */
|
1747 | 9fa3e853 | bellard | if (vp->valid_tag != virt_valid_tag)
|
1748 | 9fa3e853 | bellard | return 0; |
1749 | 9fa3e853 | bellard | if (!(vp->prot & PAGE_WRITE))
|
1750 | 9fa3e853 | bellard | return 0; |
1751 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
1752 | 9fa3e853 | bellard | printf("page_unprotect: addr=0x%08x phys_addr=0x%08x prot=%x\n",
|
1753 | 9fa3e853 | bellard | addr, vp->phys_addr, vp->prot); |
1754 | 9fa3e853 | bellard | #endif
|
1755 | 59817ccb | bellard | if (mprotect((void *)addr, TARGET_PAGE_SIZE, vp->prot) < 0) |
1756 | 59817ccb | bellard | cpu_abort(cpu_single_env, "error mprotect addr=0x%lx prot=%d\n",
|
1757 | 59817ccb | bellard | (unsigned long)addr, vp->prot); |
1758 | d720b93d | bellard | /* set the dirty bit */
|
1759 | 0a962c02 | bellard | phys_ram_dirty[vp->phys_addr >> TARGET_PAGE_BITS] = 0xff;
|
1760 | d720b93d | bellard | /* flush the code inside */
|
1761 | d720b93d | bellard | tb_invalidate_phys_page(vp->phys_addr, pc, puc); |
1762 | 9fa3e853 | bellard | return 1; |
1763 | 9fa3e853 | bellard | #else
|
1764 | 9fa3e853 | bellard | return 0; |
1765 | 9fa3e853 | bellard | #endif
|
1766 | 33417e70 | bellard | } |
1767 | 33417e70 | bellard | |
1768 | 0124311e | bellard | #else
|
1769 | 0124311e | bellard | |
1770 | ee8b7021 | bellard | void tlb_flush(CPUState *env, int flush_global) |
1771 | 0124311e | bellard | { |
1772 | 0124311e | bellard | } |
1773 | 0124311e | bellard | |
1774 | 2e12669a | bellard | void tlb_flush_page(CPUState *env, target_ulong addr)
|
1775 | 0124311e | bellard | { |
1776 | 0124311e | bellard | } |
1777 | 0124311e | bellard | |
1778 | 84b7b8e7 | bellard | int tlb_set_page_exec(CPUState *env, target_ulong vaddr,
|
1779 | 84b7b8e7 | bellard | target_phys_addr_t paddr, int prot,
|
1780 | 84b7b8e7 | bellard | int is_user, int is_softmmu) |
1781 | 9fa3e853 | bellard | { |
1782 | 9fa3e853 | bellard | return 0; |
1783 | 9fa3e853 | bellard | } |
1784 | 0124311e | bellard | |
1785 | 9fa3e853 | bellard | /* dump memory mappings */
|
1786 | 9fa3e853 | bellard | void page_dump(FILE *f)
|
1787 | 33417e70 | bellard | { |
1788 | 9fa3e853 | bellard | unsigned long start, end; |
1789 | 9fa3e853 | bellard | int i, j, prot, prot1;
|
1790 | 9fa3e853 | bellard | PageDesc *p; |
1791 | 33417e70 | bellard | |
1792 | 9fa3e853 | bellard | fprintf(f, "%-8s %-8s %-8s %s\n",
|
1793 | 9fa3e853 | bellard | "start", "end", "size", "prot"); |
1794 | 9fa3e853 | bellard | start = -1;
|
1795 | 9fa3e853 | bellard | end = -1;
|
1796 | 9fa3e853 | bellard | prot = 0;
|
1797 | 9fa3e853 | bellard | for(i = 0; i <= L1_SIZE; i++) { |
1798 | 9fa3e853 | bellard | if (i < L1_SIZE)
|
1799 | 9fa3e853 | bellard | p = l1_map[i]; |
1800 | 9fa3e853 | bellard | else
|
1801 | 9fa3e853 | bellard | p = NULL;
|
1802 | 9fa3e853 | bellard | for(j = 0;j < L2_SIZE; j++) { |
1803 | 9fa3e853 | bellard | if (!p)
|
1804 | 9fa3e853 | bellard | prot1 = 0;
|
1805 | 9fa3e853 | bellard | else
|
1806 | 9fa3e853 | bellard | prot1 = p[j].flags; |
1807 | 9fa3e853 | bellard | if (prot1 != prot) {
|
1808 | 9fa3e853 | bellard | end = (i << (32 - L1_BITS)) | (j << TARGET_PAGE_BITS);
|
1809 | 9fa3e853 | bellard | if (start != -1) { |
1810 | 9fa3e853 | bellard | fprintf(f, "%08lx-%08lx %08lx %c%c%c\n",
|
1811 | 9fa3e853 | bellard | start, end, end - start, |
1812 | 9fa3e853 | bellard | prot & PAGE_READ ? 'r' : '-', |
1813 | 9fa3e853 | bellard | prot & PAGE_WRITE ? 'w' : '-', |
1814 | 9fa3e853 | bellard | prot & PAGE_EXEC ? 'x' : '-'); |
1815 | 9fa3e853 | bellard | } |
1816 | 9fa3e853 | bellard | if (prot1 != 0) |
1817 | 9fa3e853 | bellard | start = end; |
1818 | 9fa3e853 | bellard | else
|
1819 | 9fa3e853 | bellard | start = -1;
|
1820 | 9fa3e853 | bellard | prot = prot1; |
1821 | 9fa3e853 | bellard | } |
1822 | 9fa3e853 | bellard | if (!p)
|
1823 | 9fa3e853 | bellard | break;
|
1824 | 9fa3e853 | bellard | } |
1825 | 33417e70 | bellard | } |
1826 | 33417e70 | bellard | } |
1827 | 33417e70 | bellard | |
1828 | 53a5960a | pbrook | int page_get_flags(target_ulong address)
|
1829 | 33417e70 | bellard | { |
1830 | 9fa3e853 | bellard | PageDesc *p; |
1831 | 9fa3e853 | bellard | |
1832 | 9fa3e853 | bellard | p = page_find(address >> TARGET_PAGE_BITS); |
1833 | 33417e70 | bellard | if (!p)
|
1834 | 9fa3e853 | bellard | return 0; |
1835 | 9fa3e853 | bellard | return p->flags;
|
1836 | 9fa3e853 | bellard | } |
1837 | 9fa3e853 | bellard | |
1838 | 9fa3e853 | bellard | /* modify the flags of a page and invalidate the code if
|
1839 | 9fa3e853 | bellard | necessary. The flag PAGE_WRITE_ORG is positionned automatically
|
1840 | 9fa3e853 | bellard | depending on PAGE_WRITE */
|
1841 | 53a5960a | pbrook | void page_set_flags(target_ulong start, target_ulong end, int flags) |
1842 | 9fa3e853 | bellard | { |
1843 | 9fa3e853 | bellard | PageDesc *p; |
1844 | 53a5960a | pbrook | target_ulong addr; |
1845 | 9fa3e853 | bellard | |
1846 | 9fa3e853 | bellard | start = start & TARGET_PAGE_MASK; |
1847 | 9fa3e853 | bellard | end = TARGET_PAGE_ALIGN(end); |
1848 | 9fa3e853 | bellard | if (flags & PAGE_WRITE)
|
1849 | 9fa3e853 | bellard | flags |= PAGE_WRITE_ORG; |
1850 | 9fa3e853 | bellard | spin_lock(&tb_lock); |
1851 | 9fa3e853 | bellard | for(addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
|
1852 | 9fa3e853 | bellard | p = page_find_alloc(addr >> TARGET_PAGE_BITS); |
1853 | 9fa3e853 | bellard | /* if the write protection is set, then we invalidate the code
|
1854 | 9fa3e853 | bellard | inside */
|
1855 | 9fa3e853 | bellard | if (!(p->flags & PAGE_WRITE) &&
|
1856 | 9fa3e853 | bellard | (flags & PAGE_WRITE) && |
1857 | 9fa3e853 | bellard | p->first_tb) { |
1858 | d720b93d | bellard | tb_invalidate_phys_page(addr, 0, NULL); |
1859 | 9fa3e853 | bellard | } |
1860 | 9fa3e853 | bellard | p->flags = flags; |
1861 | 9fa3e853 | bellard | } |
1862 | 9fa3e853 | bellard | spin_unlock(&tb_lock); |
1863 | 33417e70 | bellard | } |
1864 | 33417e70 | bellard | |
1865 | 9fa3e853 | bellard | /* called from signal handler: invalidate the code and unprotect the
|
1866 | 9fa3e853 | bellard | page. Return TRUE if the fault was succesfully handled. */
|
1867 | 53a5960a | pbrook | int page_unprotect(target_ulong address, unsigned long pc, void *puc) |
1868 | 9fa3e853 | bellard | { |
1869 | 9fa3e853 | bellard | unsigned int page_index, prot, pindex; |
1870 | 9fa3e853 | bellard | PageDesc *p, *p1; |
1871 | 53a5960a | pbrook | target_ulong host_start, host_end, addr; |
1872 | 9fa3e853 | bellard | |
1873 | 83fb7adf | bellard | host_start = address & qemu_host_page_mask; |
1874 | 9fa3e853 | bellard | page_index = host_start >> TARGET_PAGE_BITS; |
1875 | 9fa3e853 | bellard | p1 = page_find(page_index); |
1876 | 9fa3e853 | bellard | if (!p1)
|
1877 | 9fa3e853 | bellard | return 0; |
1878 | 83fb7adf | bellard | host_end = host_start + qemu_host_page_size; |
1879 | 9fa3e853 | bellard | p = p1; |
1880 | 9fa3e853 | bellard | prot = 0;
|
1881 | 9fa3e853 | bellard | for(addr = host_start;addr < host_end; addr += TARGET_PAGE_SIZE) {
|
1882 | 9fa3e853 | bellard | prot |= p->flags; |
1883 | 9fa3e853 | bellard | p++; |
1884 | 9fa3e853 | bellard | } |
1885 | 9fa3e853 | bellard | /* if the page was really writable, then we change its
|
1886 | 9fa3e853 | bellard | protection back to writable */
|
1887 | 9fa3e853 | bellard | if (prot & PAGE_WRITE_ORG) {
|
1888 | 9fa3e853 | bellard | pindex = (address - host_start) >> TARGET_PAGE_BITS; |
1889 | 9fa3e853 | bellard | if (!(p1[pindex].flags & PAGE_WRITE)) {
|
1890 | 53a5960a | pbrook | mprotect((void *)g2h(host_start), qemu_host_page_size,
|
1891 | 9fa3e853 | bellard | (prot & PAGE_BITS) | PAGE_WRITE); |
1892 | 9fa3e853 | bellard | p1[pindex].flags |= PAGE_WRITE; |
1893 | 9fa3e853 | bellard | /* and since the content will be modified, we must invalidate
|
1894 | 9fa3e853 | bellard | the corresponding translated code. */
|
1895 | d720b93d | bellard | tb_invalidate_phys_page(address, pc, puc); |
1896 | 9fa3e853 | bellard | #ifdef DEBUG_TB_CHECK
|
1897 | 9fa3e853 | bellard | tb_invalidate_check(address); |
1898 | 9fa3e853 | bellard | #endif
|
1899 | 9fa3e853 | bellard | return 1; |
1900 | 9fa3e853 | bellard | } |
1901 | 9fa3e853 | bellard | } |
1902 | 9fa3e853 | bellard | return 0; |
1903 | 9fa3e853 | bellard | } |
1904 | 9fa3e853 | bellard | |
1905 | 9fa3e853 | bellard | /* call this function when system calls directly modify a memory area */
|
1906 | 53a5960a | pbrook | /* ??? This should be redundant now we have lock_user. */
|
1907 | 53a5960a | pbrook | void page_unprotect_range(target_ulong data, target_ulong data_size)
|
1908 | 9fa3e853 | bellard | { |
1909 | 53a5960a | pbrook | target_ulong start, end, addr; |
1910 | 9fa3e853 | bellard | |
1911 | 53a5960a | pbrook | start = data; |
1912 | 9fa3e853 | bellard | end = start + data_size; |
1913 | 9fa3e853 | bellard | start &= TARGET_PAGE_MASK; |
1914 | 9fa3e853 | bellard | end = TARGET_PAGE_ALIGN(end); |
1915 | 9fa3e853 | bellard | for(addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
|
1916 | d720b93d | bellard | page_unprotect(addr, 0, NULL); |
1917 | 9fa3e853 | bellard | } |
1918 | 9fa3e853 | bellard | } |
1919 | 9fa3e853 | bellard | |
1920 | 6a00d601 | bellard | static inline void tlb_set_dirty(CPUState *env, |
1921 | 6a00d601 | bellard | unsigned long addr, target_ulong vaddr) |
1922 | 1ccde1cb | bellard | { |
1923 | 1ccde1cb | bellard | } |
1924 | 9fa3e853 | bellard | #endif /* defined(CONFIG_USER_ONLY) */ |
1925 | 9fa3e853 | bellard | |
1926 | db7b5426 | blueswir1 | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
1927 | db7b5426 | blueswir1 | int memory);
|
1928 | db7b5426 | blueswir1 | static void *subpage_init (target_phys_addr_t base, uint32_t *phys, |
1929 | db7b5426 | blueswir1 | int orig_memory);
|
1930 | db7b5426 | blueswir1 | #define CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, \
|
1931 | db7b5426 | blueswir1 | need_subpage) \ |
1932 | db7b5426 | blueswir1 | do { \
|
1933 | db7b5426 | blueswir1 | if (addr > start_addr) \
|
1934 | db7b5426 | blueswir1 | start_addr2 = 0; \
|
1935 | db7b5426 | blueswir1 | else { \
|
1936 | db7b5426 | blueswir1 | start_addr2 = start_addr & ~TARGET_PAGE_MASK; \ |
1937 | db7b5426 | blueswir1 | if (start_addr2 > 0) \ |
1938 | db7b5426 | blueswir1 | need_subpage = 1; \
|
1939 | db7b5426 | blueswir1 | } \ |
1940 | db7b5426 | blueswir1 | \ |
1941 | 49e9fba2 | blueswir1 | if ((start_addr + orig_size) - addr >= TARGET_PAGE_SIZE) \
|
1942 | db7b5426 | blueswir1 | end_addr2 = TARGET_PAGE_SIZE - 1; \
|
1943 | db7b5426 | blueswir1 | else { \
|
1944 | db7b5426 | blueswir1 | end_addr2 = (start_addr + orig_size - 1) & ~TARGET_PAGE_MASK; \
|
1945 | db7b5426 | blueswir1 | if (end_addr2 < TARGET_PAGE_SIZE - 1) \ |
1946 | db7b5426 | blueswir1 | need_subpage = 1; \
|
1947 | db7b5426 | blueswir1 | } \ |
1948 | db7b5426 | blueswir1 | } while (0) |
1949 | db7b5426 | blueswir1 | |
1950 | 33417e70 | bellard | /* register physical memory. 'size' must be a multiple of the target
|
1951 | 33417e70 | bellard | page size. If (phys_offset & ~TARGET_PAGE_MASK) != 0, then it is an
|
1952 | 33417e70 | bellard | io memory page */
|
1953 | 2e12669a | bellard | void cpu_register_physical_memory(target_phys_addr_t start_addr,
|
1954 | 2e12669a | bellard | unsigned long size, |
1955 | 2e12669a | bellard | unsigned long phys_offset) |
1956 | 33417e70 | bellard | { |
1957 | 108c49b8 | bellard | target_phys_addr_t addr, end_addr; |
1958 | 92e873b9 | bellard | PhysPageDesc *p; |
1959 | 9d42037b | bellard | CPUState *env; |
1960 | db7b5426 | blueswir1 | unsigned long orig_size = size; |
1961 | db7b5426 | blueswir1 | void *subpage;
|
1962 | 33417e70 | bellard | |
1963 | 5fd386f6 | bellard | size = (size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
|
1964 | 49e9fba2 | blueswir1 | end_addr = start_addr + (target_phys_addr_t)size; |
1965 | 49e9fba2 | blueswir1 | for(addr = start_addr; addr != end_addr; addr += TARGET_PAGE_SIZE) {
|
1966 | db7b5426 | blueswir1 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
1967 | db7b5426 | blueswir1 | if (p && p->phys_offset != IO_MEM_UNASSIGNED) {
|
1968 | db7b5426 | blueswir1 | unsigned long orig_memory = p->phys_offset; |
1969 | db7b5426 | blueswir1 | target_phys_addr_t start_addr2, end_addr2; |
1970 | db7b5426 | blueswir1 | int need_subpage = 0; |
1971 | db7b5426 | blueswir1 | |
1972 | db7b5426 | blueswir1 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, |
1973 | db7b5426 | blueswir1 | need_subpage); |
1974 | db7b5426 | blueswir1 | if (need_subpage) {
|
1975 | db7b5426 | blueswir1 | if (!(orig_memory & IO_MEM_SUBPAGE)) {
|
1976 | db7b5426 | blueswir1 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
1977 | db7b5426 | blueswir1 | &p->phys_offset, orig_memory); |
1978 | db7b5426 | blueswir1 | } else {
|
1979 | db7b5426 | blueswir1 | subpage = io_mem_opaque[(orig_memory & ~TARGET_PAGE_MASK) |
1980 | db7b5426 | blueswir1 | >> IO_MEM_SHIFT]; |
1981 | db7b5426 | blueswir1 | } |
1982 | db7b5426 | blueswir1 | subpage_register(subpage, start_addr2, end_addr2, phys_offset); |
1983 | db7b5426 | blueswir1 | } else {
|
1984 | db7b5426 | blueswir1 | p->phys_offset = phys_offset; |
1985 | db7b5426 | blueswir1 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM ||
|
1986 | db7b5426 | blueswir1 | (phys_offset & IO_MEM_ROMD)) |
1987 | db7b5426 | blueswir1 | phys_offset += TARGET_PAGE_SIZE; |
1988 | db7b5426 | blueswir1 | } |
1989 | db7b5426 | blueswir1 | } else {
|
1990 | db7b5426 | blueswir1 | p = phys_page_find_alloc(addr >> TARGET_PAGE_BITS, 1);
|
1991 | db7b5426 | blueswir1 | p->phys_offset = phys_offset; |
1992 | db7b5426 | blueswir1 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM ||
|
1993 | db7b5426 | blueswir1 | (phys_offset & IO_MEM_ROMD)) |
1994 | db7b5426 | blueswir1 | phys_offset += TARGET_PAGE_SIZE; |
1995 | db7b5426 | blueswir1 | else {
|
1996 | db7b5426 | blueswir1 | target_phys_addr_t start_addr2, end_addr2; |
1997 | db7b5426 | blueswir1 | int need_subpage = 0; |
1998 | db7b5426 | blueswir1 | |
1999 | db7b5426 | blueswir1 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, |
2000 | db7b5426 | blueswir1 | end_addr2, need_subpage); |
2001 | db7b5426 | blueswir1 | |
2002 | db7b5426 | blueswir1 | if (need_subpage) {
|
2003 | db7b5426 | blueswir1 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
2004 | db7b5426 | blueswir1 | &p->phys_offset, IO_MEM_UNASSIGNED); |
2005 | db7b5426 | blueswir1 | subpage_register(subpage, start_addr2, end_addr2, |
2006 | db7b5426 | blueswir1 | phys_offset); |
2007 | db7b5426 | blueswir1 | } |
2008 | db7b5426 | blueswir1 | } |
2009 | db7b5426 | blueswir1 | } |
2010 | 33417e70 | bellard | } |
2011 | 9d42037b | bellard | |
2012 | 9d42037b | bellard | /* since each CPU stores ram addresses in its TLB cache, we must
|
2013 | 9d42037b | bellard | reset the modified entries */
|
2014 | 9d42037b | bellard | /* XXX: slow ! */
|
2015 | 9d42037b | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
2016 | 9d42037b | bellard | tlb_flush(env, 1);
|
2017 | 9d42037b | bellard | } |
2018 | 33417e70 | bellard | } |
2019 | 33417e70 | bellard | |
2020 | ba863458 | bellard | /* XXX: temporary until new memory mapping API */
|
2021 | ba863458 | bellard | uint32_t cpu_get_physical_page_desc(target_phys_addr_t addr) |
2022 | ba863458 | bellard | { |
2023 | ba863458 | bellard | PhysPageDesc *p; |
2024 | ba863458 | bellard | |
2025 | ba863458 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
2026 | ba863458 | bellard | if (!p)
|
2027 | ba863458 | bellard | return IO_MEM_UNASSIGNED;
|
2028 | ba863458 | bellard | return p->phys_offset;
|
2029 | ba863458 | bellard | } |
2030 | ba863458 | bellard | |
2031 | e9a1ab19 | bellard | /* XXX: better than nothing */
|
2032 | e9a1ab19 | bellard | ram_addr_t qemu_ram_alloc(unsigned int size) |
2033 | e9a1ab19 | bellard | { |
2034 | e9a1ab19 | bellard | ram_addr_t addr; |
2035 | e9a1ab19 | bellard | if ((phys_ram_alloc_offset + size) >= phys_ram_size) {
|
2036 | e9a1ab19 | bellard | fprintf(stderr, "Not enough memory (requested_size = %u, max memory = %d)\n",
|
2037 | e9a1ab19 | bellard | size, phys_ram_size); |
2038 | e9a1ab19 | bellard | abort(); |
2039 | e9a1ab19 | bellard | } |
2040 | e9a1ab19 | bellard | addr = phys_ram_alloc_offset; |
2041 | e9a1ab19 | bellard | phys_ram_alloc_offset = TARGET_PAGE_ALIGN(phys_ram_alloc_offset + size); |
2042 | e9a1ab19 | bellard | return addr;
|
2043 | e9a1ab19 | bellard | } |
2044 | e9a1ab19 | bellard | |
2045 | e9a1ab19 | bellard | void qemu_ram_free(ram_addr_t addr)
|
2046 | e9a1ab19 | bellard | { |
2047 | e9a1ab19 | bellard | } |
2048 | e9a1ab19 | bellard | |
2049 | a4193c8a | bellard | static uint32_t unassigned_mem_readb(void *opaque, target_phys_addr_t addr) |
2050 | 33417e70 | bellard | { |
2051 | 67d3b957 | pbrook | #ifdef DEBUG_UNASSIGNED
|
2052 | 6c36d3fa | blueswir1 | printf("Unassigned mem read " TARGET_FMT_lx "\n", addr); |
2053 | 67d3b957 | pbrook | #endif
|
2054 | b4f0a316 | blueswir1 | #ifdef TARGET_SPARC
|
2055 | 6c36d3fa | blueswir1 | do_unassigned_access(addr, 0, 0, 0); |
2056 | b4f0a316 | blueswir1 | #endif
|
2057 | 33417e70 | bellard | return 0; |
2058 | 33417e70 | bellard | } |
2059 | 33417e70 | bellard | |
2060 | a4193c8a | bellard | static void unassigned_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
2061 | 33417e70 | bellard | { |
2062 | 67d3b957 | pbrook | #ifdef DEBUG_UNASSIGNED
|
2063 | 6c36d3fa | blueswir1 | printf("Unassigned mem write " TARGET_FMT_lx " = 0x%x\n", addr, val); |
2064 | 67d3b957 | pbrook | #endif
|
2065 | b4f0a316 | blueswir1 | #ifdef TARGET_SPARC
|
2066 | 6c36d3fa | blueswir1 | do_unassigned_access(addr, 1, 0, 0); |
2067 | b4f0a316 | blueswir1 | #endif
|
2068 | 33417e70 | bellard | } |
2069 | 33417e70 | bellard | |
2070 | 33417e70 | bellard | static CPUReadMemoryFunc *unassigned_mem_read[3] = { |
2071 | 33417e70 | bellard | unassigned_mem_readb, |
2072 | 33417e70 | bellard | unassigned_mem_readb, |
2073 | 33417e70 | bellard | unassigned_mem_readb, |
2074 | 33417e70 | bellard | }; |
2075 | 33417e70 | bellard | |
2076 | 33417e70 | bellard | static CPUWriteMemoryFunc *unassigned_mem_write[3] = { |
2077 | 33417e70 | bellard | unassigned_mem_writeb, |
2078 | 33417e70 | bellard | unassigned_mem_writeb, |
2079 | 33417e70 | bellard | unassigned_mem_writeb, |
2080 | 33417e70 | bellard | }; |
2081 | 33417e70 | bellard | |
2082 | 3a7d929e | bellard | static void notdirty_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
2083 | 9fa3e853 | bellard | { |
2084 | 3a7d929e | bellard | unsigned long ram_addr; |
2085 | 3a7d929e | bellard | int dirty_flags;
|
2086 | 3a7d929e | bellard | ram_addr = addr - (unsigned long)phys_ram_base; |
2087 | 3a7d929e | bellard | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
2088 | 3a7d929e | bellard | if (!(dirty_flags & CODE_DIRTY_FLAG)) {
|
2089 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
2090 | 3a7d929e | bellard | tb_invalidate_phys_page_fast(ram_addr, 1);
|
2091 | 3a7d929e | bellard | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
2092 | 9fa3e853 | bellard | #endif
|
2093 | 3a7d929e | bellard | } |
2094 | c27004ec | bellard | stb_p((uint8_t *)(long)addr, val);
|
2095 | f32fc648 | bellard | #ifdef USE_KQEMU
|
2096 | f32fc648 | bellard | if (cpu_single_env->kqemu_enabled &&
|
2097 | f32fc648 | bellard | (dirty_flags & KQEMU_MODIFY_PAGE_MASK) != KQEMU_MODIFY_PAGE_MASK) |
2098 | f32fc648 | bellard | kqemu_modify_page(cpu_single_env, ram_addr); |
2099 | f32fc648 | bellard | #endif
|
2100 | f23db169 | bellard | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG);
|
2101 | f23db169 | bellard | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] = dirty_flags; |
2102 | f23db169 | bellard | /* we remove the notdirty callback only if the code has been
|
2103 | f23db169 | bellard | flushed */
|
2104 | f23db169 | bellard | if (dirty_flags == 0xff) |
2105 | 6a00d601 | bellard | tlb_set_dirty(cpu_single_env, addr, cpu_single_env->mem_write_vaddr); |
2106 | 9fa3e853 | bellard | } |
2107 | 9fa3e853 | bellard | |
2108 | 3a7d929e | bellard | static void notdirty_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val) |
2109 | 9fa3e853 | bellard | { |
2110 | 3a7d929e | bellard | unsigned long ram_addr; |
2111 | 3a7d929e | bellard | int dirty_flags;
|
2112 | 3a7d929e | bellard | ram_addr = addr - (unsigned long)phys_ram_base; |
2113 | 3a7d929e | bellard | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
2114 | 3a7d929e | bellard | if (!(dirty_flags & CODE_DIRTY_FLAG)) {
|
2115 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
2116 | 3a7d929e | bellard | tb_invalidate_phys_page_fast(ram_addr, 2);
|
2117 | 3a7d929e | bellard | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
2118 | 9fa3e853 | bellard | #endif
|
2119 | 3a7d929e | bellard | } |
2120 | c27004ec | bellard | stw_p((uint8_t *)(long)addr, val);
|
2121 | f32fc648 | bellard | #ifdef USE_KQEMU
|
2122 | f32fc648 | bellard | if (cpu_single_env->kqemu_enabled &&
|
2123 | f32fc648 | bellard | (dirty_flags & KQEMU_MODIFY_PAGE_MASK) != KQEMU_MODIFY_PAGE_MASK) |
2124 | f32fc648 | bellard | kqemu_modify_page(cpu_single_env, ram_addr); |
2125 | f32fc648 | bellard | #endif
|
2126 | f23db169 | bellard | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG);
|
2127 | f23db169 | bellard | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] = dirty_flags; |
2128 | f23db169 | bellard | /* we remove the notdirty callback only if the code has been
|
2129 | f23db169 | bellard | flushed */
|
2130 | f23db169 | bellard | if (dirty_flags == 0xff) |
2131 | 6a00d601 | bellard | tlb_set_dirty(cpu_single_env, addr, cpu_single_env->mem_write_vaddr); |
2132 | 9fa3e853 | bellard | } |
2133 | 9fa3e853 | bellard | |
2134 | 3a7d929e | bellard | static void notdirty_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val) |
2135 | 9fa3e853 | bellard | { |
2136 | 3a7d929e | bellard | unsigned long ram_addr; |
2137 | 3a7d929e | bellard | int dirty_flags;
|
2138 | 3a7d929e | bellard | ram_addr = addr - (unsigned long)phys_ram_base; |
2139 | 3a7d929e | bellard | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
2140 | 3a7d929e | bellard | if (!(dirty_flags & CODE_DIRTY_FLAG)) {
|
2141 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
2142 | 3a7d929e | bellard | tb_invalidate_phys_page_fast(ram_addr, 4);
|
2143 | 3a7d929e | bellard | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
2144 | 9fa3e853 | bellard | #endif
|
2145 | 3a7d929e | bellard | } |
2146 | c27004ec | bellard | stl_p((uint8_t *)(long)addr, val);
|
2147 | f32fc648 | bellard | #ifdef USE_KQEMU
|
2148 | f32fc648 | bellard | if (cpu_single_env->kqemu_enabled &&
|
2149 | f32fc648 | bellard | (dirty_flags & KQEMU_MODIFY_PAGE_MASK) != KQEMU_MODIFY_PAGE_MASK) |
2150 | f32fc648 | bellard | kqemu_modify_page(cpu_single_env, ram_addr); |
2151 | f32fc648 | bellard | #endif
|
2152 | f23db169 | bellard | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG);
|
2153 | f23db169 | bellard | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] = dirty_flags; |
2154 | f23db169 | bellard | /* we remove the notdirty callback only if the code has been
|
2155 | f23db169 | bellard | flushed */
|
2156 | f23db169 | bellard | if (dirty_flags == 0xff) |
2157 | 6a00d601 | bellard | tlb_set_dirty(cpu_single_env, addr, cpu_single_env->mem_write_vaddr); |
2158 | 9fa3e853 | bellard | } |
2159 | 9fa3e853 | bellard | |
2160 | 3a7d929e | bellard | static CPUReadMemoryFunc *error_mem_read[3] = { |
2161 | 9fa3e853 | bellard | NULL, /* never used */ |
2162 | 9fa3e853 | bellard | NULL, /* never used */ |
2163 | 9fa3e853 | bellard | NULL, /* never used */ |
2164 | 9fa3e853 | bellard | }; |
2165 | 9fa3e853 | bellard | |
2166 | 1ccde1cb | bellard | static CPUWriteMemoryFunc *notdirty_mem_write[3] = { |
2167 | 1ccde1cb | bellard | notdirty_mem_writeb, |
2168 | 1ccde1cb | bellard | notdirty_mem_writew, |
2169 | 1ccde1cb | bellard | notdirty_mem_writel, |
2170 | 1ccde1cb | bellard | }; |
2171 | 1ccde1cb | bellard | |
2172 | 6658ffb8 | pbrook | #if defined(CONFIG_SOFTMMU)
|
2173 | 6658ffb8 | pbrook | /* Watchpoint access routines. Watchpoints are inserted using TLB tricks,
|
2174 | 6658ffb8 | pbrook | so these check for a hit then pass through to the normal out-of-line
|
2175 | 6658ffb8 | pbrook | phys routines. */
|
2176 | 6658ffb8 | pbrook | static uint32_t watch_mem_readb(void *opaque, target_phys_addr_t addr) |
2177 | 6658ffb8 | pbrook | { |
2178 | 6658ffb8 | pbrook | return ldub_phys(addr);
|
2179 | 6658ffb8 | pbrook | } |
2180 | 6658ffb8 | pbrook | |
2181 | 6658ffb8 | pbrook | static uint32_t watch_mem_readw(void *opaque, target_phys_addr_t addr) |
2182 | 6658ffb8 | pbrook | { |
2183 | 6658ffb8 | pbrook | return lduw_phys(addr);
|
2184 | 6658ffb8 | pbrook | } |
2185 | 6658ffb8 | pbrook | |
2186 | 6658ffb8 | pbrook | static uint32_t watch_mem_readl(void *opaque, target_phys_addr_t addr) |
2187 | 6658ffb8 | pbrook | { |
2188 | 6658ffb8 | pbrook | return ldl_phys(addr);
|
2189 | 6658ffb8 | pbrook | } |
2190 | 6658ffb8 | pbrook | |
2191 | 6658ffb8 | pbrook | /* Generate a debug exception if a watchpoint has been hit.
|
2192 | 6658ffb8 | pbrook | Returns the real physical address of the access. addr will be a host
|
2193 | d79acba4 | balrog | address in case of a RAM location. */
|
2194 | 6658ffb8 | pbrook | static target_ulong check_watchpoint(target_phys_addr_t addr)
|
2195 | 6658ffb8 | pbrook | { |
2196 | 6658ffb8 | pbrook | CPUState *env = cpu_single_env; |
2197 | 6658ffb8 | pbrook | target_ulong watch; |
2198 | 6658ffb8 | pbrook | target_ulong retaddr; |
2199 | 6658ffb8 | pbrook | int i;
|
2200 | 6658ffb8 | pbrook | |
2201 | 6658ffb8 | pbrook | retaddr = addr; |
2202 | 6658ffb8 | pbrook | for (i = 0; i < env->nb_watchpoints; i++) { |
2203 | 6658ffb8 | pbrook | watch = env->watchpoint[i].vaddr; |
2204 | 6658ffb8 | pbrook | if (((env->mem_write_vaddr ^ watch) & TARGET_PAGE_MASK) == 0) { |
2205 | d79acba4 | balrog | retaddr = addr - env->watchpoint[i].addend; |
2206 | 6658ffb8 | pbrook | if (((addr ^ watch) & ~TARGET_PAGE_MASK) == 0) { |
2207 | 6658ffb8 | pbrook | cpu_single_env->watchpoint_hit = i + 1;
|
2208 | 6658ffb8 | pbrook | cpu_interrupt(cpu_single_env, CPU_INTERRUPT_DEBUG); |
2209 | 6658ffb8 | pbrook | break;
|
2210 | 6658ffb8 | pbrook | } |
2211 | 6658ffb8 | pbrook | } |
2212 | 6658ffb8 | pbrook | } |
2213 | 6658ffb8 | pbrook | return retaddr;
|
2214 | 6658ffb8 | pbrook | } |
2215 | 6658ffb8 | pbrook | |
2216 | 6658ffb8 | pbrook | static void watch_mem_writeb(void *opaque, target_phys_addr_t addr, |
2217 | 6658ffb8 | pbrook | uint32_t val) |
2218 | 6658ffb8 | pbrook | { |
2219 | 6658ffb8 | pbrook | addr = check_watchpoint(addr); |
2220 | 6658ffb8 | pbrook | stb_phys(addr, val); |
2221 | 6658ffb8 | pbrook | } |
2222 | 6658ffb8 | pbrook | |
2223 | 6658ffb8 | pbrook | static void watch_mem_writew(void *opaque, target_phys_addr_t addr, |
2224 | 6658ffb8 | pbrook | uint32_t val) |
2225 | 6658ffb8 | pbrook | { |
2226 | 6658ffb8 | pbrook | addr = check_watchpoint(addr); |
2227 | 6658ffb8 | pbrook | stw_phys(addr, val); |
2228 | 6658ffb8 | pbrook | } |
2229 | 6658ffb8 | pbrook | |
2230 | 6658ffb8 | pbrook | static void watch_mem_writel(void *opaque, target_phys_addr_t addr, |
2231 | 6658ffb8 | pbrook | uint32_t val) |
2232 | 6658ffb8 | pbrook | { |
2233 | 6658ffb8 | pbrook | addr = check_watchpoint(addr); |
2234 | 6658ffb8 | pbrook | stl_phys(addr, val); |
2235 | 6658ffb8 | pbrook | } |
2236 | 6658ffb8 | pbrook | |
2237 | 6658ffb8 | pbrook | static CPUReadMemoryFunc *watch_mem_read[3] = { |
2238 | 6658ffb8 | pbrook | watch_mem_readb, |
2239 | 6658ffb8 | pbrook | watch_mem_readw, |
2240 | 6658ffb8 | pbrook | watch_mem_readl, |
2241 | 6658ffb8 | pbrook | }; |
2242 | 6658ffb8 | pbrook | |
2243 | 6658ffb8 | pbrook | static CPUWriteMemoryFunc *watch_mem_write[3] = { |
2244 | 6658ffb8 | pbrook | watch_mem_writeb, |
2245 | 6658ffb8 | pbrook | watch_mem_writew, |
2246 | 6658ffb8 | pbrook | watch_mem_writel, |
2247 | 6658ffb8 | pbrook | }; |
2248 | 6658ffb8 | pbrook | #endif
|
2249 | 6658ffb8 | pbrook | |
2250 | db7b5426 | blueswir1 | static inline uint32_t subpage_readlen (subpage_t *mmio, target_phys_addr_t addr, |
2251 | db7b5426 | blueswir1 | unsigned int len) |
2252 | db7b5426 | blueswir1 | { |
2253 | db7b5426 | blueswir1 | CPUReadMemoryFunc **mem_read; |
2254 | db7b5426 | blueswir1 | uint32_t ret; |
2255 | db7b5426 | blueswir1 | unsigned int idx; |
2256 | db7b5426 | blueswir1 | |
2257 | db7b5426 | blueswir1 | idx = SUBPAGE_IDX(addr - mmio->base); |
2258 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2259 | db7b5426 | blueswir1 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d\n", __func__, |
2260 | db7b5426 | blueswir1 | mmio, len, addr, idx); |
2261 | db7b5426 | blueswir1 | #endif
|
2262 | db7b5426 | blueswir1 | mem_read = mmio->mem_read[idx]; |
2263 | db7b5426 | blueswir1 | ret = (*mem_read[len])(mmio->opaque[idx], addr); |
2264 | db7b5426 | blueswir1 | |
2265 | db7b5426 | blueswir1 | return ret;
|
2266 | db7b5426 | blueswir1 | } |
2267 | db7b5426 | blueswir1 | |
2268 | db7b5426 | blueswir1 | static inline void subpage_writelen (subpage_t *mmio, target_phys_addr_t addr, |
2269 | db7b5426 | blueswir1 | uint32_t value, unsigned int len) |
2270 | db7b5426 | blueswir1 | { |
2271 | db7b5426 | blueswir1 | CPUWriteMemoryFunc **mem_write; |
2272 | db7b5426 | blueswir1 | unsigned int idx; |
2273 | db7b5426 | blueswir1 | |
2274 | db7b5426 | blueswir1 | idx = SUBPAGE_IDX(addr - mmio->base); |
2275 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2276 | db7b5426 | blueswir1 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d value %08x\n", __func__, |
2277 | db7b5426 | blueswir1 | mmio, len, addr, idx, value); |
2278 | db7b5426 | blueswir1 | #endif
|
2279 | db7b5426 | blueswir1 | mem_write = mmio->mem_write[idx]; |
2280 | db7b5426 | blueswir1 | (*mem_write[len])(mmio->opaque[idx], addr, value); |
2281 | db7b5426 | blueswir1 | } |
2282 | db7b5426 | blueswir1 | |
2283 | db7b5426 | blueswir1 | static uint32_t subpage_readb (void *opaque, target_phys_addr_t addr) |
2284 | db7b5426 | blueswir1 | { |
2285 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2286 | db7b5426 | blueswir1 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
2287 | db7b5426 | blueswir1 | #endif
|
2288 | db7b5426 | blueswir1 | |
2289 | db7b5426 | blueswir1 | return subpage_readlen(opaque, addr, 0); |
2290 | db7b5426 | blueswir1 | } |
2291 | db7b5426 | blueswir1 | |
2292 | db7b5426 | blueswir1 | static void subpage_writeb (void *opaque, target_phys_addr_t addr, |
2293 | db7b5426 | blueswir1 | uint32_t value) |
2294 | db7b5426 | blueswir1 | { |
2295 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2296 | db7b5426 | blueswir1 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
2297 | db7b5426 | blueswir1 | #endif
|
2298 | db7b5426 | blueswir1 | subpage_writelen(opaque, addr, value, 0);
|
2299 | db7b5426 | blueswir1 | } |
2300 | db7b5426 | blueswir1 | |
2301 | db7b5426 | blueswir1 | static uint32_t subpage_readw (void *opaque, target_phys_addr_t addr) |
2302 | db7b5426 | blueswir1 | { |
2303 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2304 | db7b5426 | blueswir1 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
2305 | db7b5426 | blueswir1 | #endif
|
2306 | db7b5426 | blueswir1 | |
2307 | db7b5426 | blueswir1 | return subpage_readlen(opaque, addr, 1); |
2308 | db7b5426 | blueswir1 | } |
2309 | db7b5426 | blueswir1 | |
2310 | db7b5426 | blueswir1 | static void subpage_writew (void *opaque, target_phys_addr_t addr, |
2311 | db7b5426 | blueswir1 | uint32_t value) |
2312 | db7b5426 | blueswir1 | { |
2313 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2314 | db7b5426 | blueswir1 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
2315 | db7b5426 | blueswir1 | #endif
|
2316 | db7b5426 | blueswir1 | subpage_writelen(opaque, addr, value, 1);
|
2317 | db7b5426 | blueswir1 | } |
2318 | db7b5426 | blueswir1 | |
2319 | db7b5426 | blueswir1 | static uint32_t subpage_readl (void *opaque, target_phys_addr_t addr) |
2320 | db7b5426 | blueswir1 | { |
2321 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2322 | db7b5426 | blueswir1 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
2323 | db7b5426 | blueswir1 | #endif
|
2324 | db7b5426 | blueswir1 | |
2325 | db7b5426 | blueswir1 | return subpage_readlen(opaque, addr, 2); |
2326 | db7b5426 | blueswir1 | } |
2327 | db7b5426 | blueswir1 | |
2328 | db7b5426 | blueswir1 | static void subpage_writel (void *opaque, |
2329 | db7b5426 | blueswir1 | target_phys_addr_t addr, uint32_t value) |
2330 | db7b5426 | blueswir1 | { |
2331 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2332 | db7b5426 | blueswir1 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
2333 | db7b5426 | blueswir1 | #endif
|
2334 | db7b5426 | blueswir1 | subpage_writelen(opaque, addr, value, 2);
|
2335 | db7b5426 | blueswir1 | } |
2336 | db7b5426 | blueswir1 | |
2337 | db7b5426 | blueswir1 | static CPUReadMemoryFunc *subpage_read[] = {
|
2338 | db7b5426 | blueswir1 | &subpage_readb, |
2339 | db7b5426 | blueswir1 | &subpage_readw, |
2340 | db7b5426 | blueswir1 | &subpage_readl, |
2341 | db7b5426 | blueswir1 | }; |
2342 | db7b5426 | blueswir1 | |
2343 | db7b5426 | blueswir1 | static CPUWriteMemoryFunc *subpage_write[] = {
|
2344 | db7b5426 | blueswir1 | &subpage_writeb, |
2345 | db7b5426 | blueswir1 | &subpage_writew, |
2346 | db7b5426 | blueswir1 | &subpage_writel, |
2347 | db7b5426 | blueswir1 | }; |
2348 | db7b5426 | blueswir1 | |
2349 | db7b5426 | blueswir1 | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
2350 | db7b5426 | blueswir1 | int memory)
|
2351 | db7b5426 | blueswir1 | { |
2352 | db7b5426 | blueswir1 | int idx, eidx;
|
2353 | db7b5426 | blueswir1 | |
2354 | db7b5426 | blueswir1 | if (start >= TARGET_PAGE_SIZE || end >= TARGET_PAGE_SIZE)
|
2355 | db7b5426 | blueswir1 | return -1; |
2356 | db7b5426 | blueswir1 | idx = SUBPAGE_IDX(start); |
2357 | db7b5426 | blueswir1 | eidx = SUBPAGE_IDX(end); |
2358 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2359 | db7b5426 | blueswir1 | printf("%s: %p start %08x end %08x idx %08x eidx %08x mem %d\n", __func__,
|
2360 | db7b5426 | blueswir1 | mmio, start, end, idx, eidx, memory); |
2361 | db7b5426 | blueswir1 | #endif
|
2362 | db7b5426 | blueswir1 | memory >>= IO_MEM_SHIFT; |
2363 | db7b5426 | blueswir1 | for (; idx <= eidx; idx++) {
|
2364 | db7b5426 | blueswir1 | mmio->mem_read[idx] = io_mem_read[memory]; |
2365 | db7b5426 | blueswir1 | mmio->mem_write[idx] = io_mem_write[memory]; |
2366 | db7b5426 | blueswir1 | mmio->opaque[idx] = io_mem_opaque[memory]; |
2367 | db7b5426 | blueswir1 | } |
2368 | db7b5426 | blueswir1 | |
2369 | db7b5426 | blueswir1 | return 0; |
2370 | db7b5426 | blueswir1 | } |
2371 | db7b5426 | blueswir1 | |
2372 | db7b5426 | blueswir1 | static void *subpage_init (target_phys_addr_t base, uint32_t *phys, |
2373 | db7b5426 | blueswir1 | int orig_memory)
|
2374 | db7b5426 | blueswir1 | { |
2375 | db7b5426 | blueswir1 | subpage_t *mmio; |
2376 | db7b5426 | blueswir1 | int subpage_memory;
|
2377 | db7b5426 | blueswir1 | |
2378 | db7b5426 | blueswir1 | mmio = qemu_mallocz(sizeof(subpage_t));
|
2379 | db7b5426 | blueswir1 | if (mmio != NULL) { |
2380 | db7b5426 | blueswir1 | mmio->base = base; |
2381 | db7b5426 | blueswir1 | subpage_memory = cpu_register_io_memory(0, subpage_read, subpage_write, mmio);
|
2382 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
2383 | db7b5426 | blueswir1 | printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__, |
2384 | db7b5426 | blueswir1 | mmio, base, TARGET_PAGE_SIZE, subpage_memory); |
2385 | db7b5426 | blueswir1 | #endif
|
2386 | db7b5426 | blueswir1 | *phys = subpage_memory | IO_MEM_SUBPAGE; |
2387 | db7b5426 | blueswir1 | subpage_register(mmio, 0, TARGET_PAGE_SIZE - 1, orig_memory); |
2388 | db7b5426 | blueswir1 | } |
2389 | db7b5426 | blueswir1 | |
2390 | db7b5426 | blueswir1 | return mmio;
|
2391 | db7b5426 | blueswir1 | } |
2392 | db7b5426 | blueswir1 | |
2393 | 33417e70 | bellard | static void io_mem_init(void) |
2394 | 33417e70 | bellard | { |
2395 | 3a7d929e | bellard | cpu_register_io_memory(IO_MEM_ROM >> IO_MEM_SHIFT, error_mem_read, unassigned_mem_write, NULL);
|
2396 | a4193c8a | bellard | cpu_register_io_memory(IO_MEM_UNASSIGNED >> IO_MEM_SHIFT, unassigned_mem_read, unassigned_mem_write, NULL);
|
2397 | 3a7d929e | bellard | cpu_register_io_memory(IO_MEM_NOTDIRTY >> IO_MEM_SHIFT, error_mem_read, notdirty_mem_write, NULL);
|
2398 | 1ccde1cb | bellard | io_mem_nb = 5;
|
2399 | 1ccde1cb | bellard | |
2400 | 6658ffb8 | pbrook | #if defined(CONFIG_SOFTMMU)
|
2401 | 6658ffb8 | pbrook | io_mem_watch = cpu_register_io_memory(-1, watch_mem_read,
|
2402 | 6658ffb8 | pbrook | watch_mem_write, NULL);
|
2403 | 6658ffb8 | pbrook | #endif
|
2404 | 1ccde1cb | bellard | /* alloc dirty bits array */
|
2405 | 0a962c02 | bellard | phys_ram_dirty = qemu_vmalloc(phys_ram_size >> TARGET_PAGE_BITS); |
2406 | 3a7d929e | bellard | memset(phys_ram_dirty, 0xff, phys_ram_size >> TARGET_PAGE_BITS);
|
2407 | 33417e70 | bellard | } |
2408 | 33417e70 | bellard | |
2409 | 33417e70 | bellard | /* mem_read and mem_write are arrays of functions containing the
|
2410 | 33417e70 | bellard | function to access byte (index 0), word (index 1) and dword (index
|
2411 | 33417e70 | bellard | 2). All functions must be supplied. If io_index is non zero, the
|
2412 | 33417e70 | bellard | corresponding io zone is modified. If it is zero, a new io zone is
|
2413 | 33417e70 | bellard | allocated. The return value can be used with
|
2414 | 33417e70 | bellard | cpu_register_physical_memory(). (-1) is returned if error. */
|
2415 | 33417e70 | bellard | int cpu_register_io_memory(int io_index, |
2416 | 33417e70 | bellard | CPUReadMemoryFunc **mem_read, |
2417 | a4193c8a | bellard | CPUWriteMemoryFunc **mem_write, |
2418 | a4193c8a | bellard | void *opaque)
|
2419 | 33417e70 | bellard | { |
2420 | 33417e70 | bellard | int i;
|
2421 | 33417e70 | bellard | |
2422 | 33417e70 | bellard | if (io_index <= 0) { |
2423 | b5ff1b31 | bellard | if (io_mem_nb >= IO_MEM_NB_ENTRIES)
|
2424 | 33417e70 | bellard | return -1; |
2425 | 33417e70 | bellard | io_index = io_mem_nb++; |
2426 | 33417e70 | bellard | } else {
|
2427 | 33417e70 | bellard | if (io_index >= IO_MEM_NB_ENTRIES)
|
2428 | 33417e70 | bellard | return -1; |
2429 | 33417e70 | bellard | } |
2430 | b5ff1b31 | bellard | |
2431 | 33417e70 | bellard | for(i = 0;i < 3; i++) { |
2432 | 33417e70 | bellard | io_mem_read[io_index][i] = mem_read[i]; |
2433 | 33417e70 | bellard | io_mem_write[io_index][i] = mem_write[i]; |
2434 | 33417e70 | bellard | } |
2435 | a4193c8a | bellard | io_mem_opaque[io_index] = opaque; |
2436 | 33417e70 | bellard | return io_index << IO_MEM_SHIFT;
|
2437 | 33417e70 | bellard | } |
2438 | 61382a50 | bellard | |
2439 | 8926b517 | bellard | CPUWriteMemoryFunc **cpu_get_io_memory_write(int io_index)
|
2440 | 8926b517 | bellard | { |
2441 | 8926b517 | bellard | return io_mem_write[io_index >> IO_MEM_SHIFT];
|
2442 | 8926b517 | bellard | } |
2443 | 8926b517 | bellard | |
2444 | 8926b517 | bellard | CPUReadMemoryFunc **cpu_get_io_memory_read(int io_index)
|
2445 | 8926b517 | bellard | { |
2446 | 8926b517 | bellard | return io_mem_read[io_index >> IO_MEM_SHIFT];
|
2447 | 8926b517 | bellard | } |
2448 | 8926b517 | bellard | |
2449 | 13eb76e0 | bellard | /* physical memory access (slow version, mainly for debug) */
|
2450 | 13eb76e0 | bellard | #if defined(CONFIG_USER_ONLY)
|
2451 | 2e12669a | bellard | void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
|
2452 | 13eb76e0 | bellard | int len, int is_write) |
2453 | 13eb76e0 | bellard | { |
2454 | 13eb76e0 | bellard | int l, flags;
|
2455 | 13eb76e0 | bellard | target_ulong page; |
2456 | 53a5960a | pbrook | void * p;
|
2457 | 13eb76e0 | bellard | |
2458 | 13eb76e0 | bellard | while (len > 0) { |
2459 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
2460 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
2461 | 13eb76e0 | bellard | if (l > len)
|
2462 | 13eb76e0 | bellard | l = len; |
2463 | 13eb76e0 | bellard | flags = page_get_flags(page); |
2464 | 13eb76e0 | bellard | if (!(flags & PAGE_VALID))
|
2465 | 13eb76e0 | bellard | return;
|
2466 | 13eb76e0 | bellard | if (is_write) {
|
2467 | 13eb76e0 | bellard | if (!(flags & PAGE_WRITE))
|
2468 | 13eb76e0 | bellard | return;
|
2469 | 53a5960a | pbrook | p = lock_user(addr, len, 0);
|
2470 | 53a5960a | pbrook | memcpy(p, buf, len); |
2471 | 53a5960a | pbrook | unlock_user(p, addr, len); |
2472 | 13eb76e0 | bellard | } else {
|
2473 | 13eb76e0 | bellard | if (!(flags & PAGE_READ))
|
2474 | 13eb76e0 | bellard | return;
|
2475 | 53a5960a | pbrook | p = lock_user(addr, len, 1);
|
2476 | 53a5960a | pbrook | memcpy(buf, p, len); |
2477 | 53a5960a | pbrook | unlock_user(p, addr, 0);
|
2478 | 13eb76e0 | bellard | } |
2479 | 13eb76e0 | bellard | len -= l; |
2480 | 13eb76e0 | bellard | buf += l; |
2481 | 13eb76e0 | bellard | addr += l; |
2482 | 13eb76e0 | bellard | } |
2483 | 13eb76e0 | bellard | } |
2484 | 8df1cd07 | bellard | |
2485 | 13eb76e0 | bellard | #else
|
2486 | 2e12669a | bellard | void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
|
2487 | 13eb76e0 | bellard | int len, int is_write) |
2488 | 13eb76e0 | bellard | { |
2489 | 13eb76e0 | bellard | int l, io_index;
|
2490 | 13eb76e0 | bellard | uint8_t *ptr; |
2491 | 13eb76e0 | bellard | uint32_t val; |
2492 | 2e12669a | bellard | target_phys_addr_t page; |
2493 | 2e12669a | bellard | unsigned long pd; |
2494 | 92e873b9 | bellard | PhysPageDesc *p; |
2495 | 13eb76e0 | bellard | |
2496 | 13eb76e0 | bellard | while (len > 0) { |
2497 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
2498 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
2499 | 13eb76e0 | bellard | if (l > len)
|
2500 | 13eb76e0 | bellard | l = len; |
2501 | 92e873b9 | bellard | p = phys_page_find(page >> TARGET_PAGE_BITS); |
2502 | 13eb76e0 | bellard | if (!p) {
|
2503 | 13eb76e0 | bellard | pd = IO_MEM_UNASSIGNED; |
2504 | 13eb76e0 | bellard | } else {
|
2505 | 13eb76e0 | bellard | pd = p->phys_offset; |
2506 | 13eb76e0 | bellard | } |
2507 | 13eb76e0 | bellard | |
2508 | 13eb76e0 | bellard | if (is_write) {
|
2509 | 3a7d929e | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
2510 | 13eb76e0 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
2511 | 6a00d601 | bellard | /* XXX: could force cpu_single_env to NULL to avoid
|
2512 | 6a00d601 | bellard | potential bugs */
|
2513 | 13eb76e0 | bellard | if (l >= 4 && ((addr & 3) == 0)) { |
2514 | 1c213d19 | bellard | /* 32 bit write access */
|
2515 | c27004ec | bellard | val = ldl_p(buf); |
2516 | a4193c8a | bellard | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
|
2517 | 13eb76e0 | bellard | l = 4;
|
2518 | 13eb76e0 | bellard | } else if (l >= 2 && ((addr & 1) == 0)) { |
2519 | 1c213d19 | bellard | /* 16 bit write access */
|
2520 | c27004ec | bellard | val = lduw_p(buf); |
2521 | a4193c8a | bellard | io_mem_write[io_index][1](io_mem_opaque[io_index], addr, val);
|
2522 | 13eb76e0 | bellard | l = 2;
|
2523 | 13eb76e0 | bellard | } else {
|
2524 | 1c213d19 | bellard | /* 8 bit write access */
|
2525 | c27004ec | bellard | val = ldub_p(buf); |
2526 | a4193c8a | bellard | io_mem_write[io_index][0](io_mem_opaque[io_index], addr, val);
|
2527 | 13eb76e0 | bellard | l = 1;
|
2528 | 13eb76e0 | bellard | } |
2529 | 13eb76e0 | bellard | } else {
|
2530 | b448f2f3 | bellard | unsigned long addr1; |
2531 | b448f2f3 | bellard | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
2532 | 13eb76e0 | bellard | /* RAM case */
|
2533 | b448f2f3 | bellard | ptr = phys_ram_base + addr1; |
2534 | 13eb76e0 | bellard | memcpy(ptr, buf, l); |
2535 | 3a7d929e | bellard | if (!cpu_physical_memory_is_dirty(addr1)) {
|
2536 | 3a7d929e | bellard | /* invalidate code */
|
2537 | 3a7d929e | bellard | tb_invalidate_phys_page_range(addr1, addr1 + l, 0);
|
2538 | 3a7d929e | bellard | /* set dirty bit */
|
2539 | f23db169 | bellard | phys_ram_dirty[addr1 >> TARGET_PAGE_BITS] |= |
2540 | f23db169 | bellard | (0xff & ~CODE_DIRTY_FLAG);
|
2541 | 3a7d929e | bellard | } |
2542 | 13eb76e0 | bellard | } |
2543 | 13eb76e0 | bellard | } else {
|
2544 | 2a4188a3 | bellard | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
2545 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
2546 | 13eb76e0 | bellard | /* I/O case */
|
2547 | 13eb76e0 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
2548 | 13eb76e0 | bellard | if (l >= 4 && ((addr & 3) == 0)) { |
2549 | 13eb76e0 | bellard | /* 32 bit read access */
|
2550 | a4193c8a | bellard | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr);
|
2551 | c27004ec | bellard | stl_p(buf, val); |
2552 | 13eb76e0 | bellard | l = 4;
|
2553 | 13eb76e0 | bellard | } else if (l >= 2 && ((addr & 1) == 0)) { |
2554 | 13eb76e0 | bellard | /* 16 bit read access */
|
2555 | a4193c8a | bellard | val = io_mem_read[io_index][1](io_mem_opaque[io_index], addr);
|
2556 | c27004ec | bellard | stw_p(buf, val); |
2557 | 13eb76e0 | bellard | l = 2;
|
2558 | 13eb76e0 | bellard | } else {
|
2559 | 1c213d19 | bellard | /* 8 bit read access */
|
2560 | a4193c8a | bellard | val = io_mem_read[io_index][0](io_mem_opaque[io_index], addr);
|
2561 | c27004ec | bellard | stb_p(buf, val); |
2562 | 13eb76e0 | bellard | l = 1;
|
2563 | 13eb76e0 | bellard | } |
2564 | 13eb76e0 | bellard | } else {
|
2565 | 13eb76e0 | bellard | /* RAM case */
|
2566 | 13eb76e0 | bellard | ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) + |
2567 | 13eb76e0 | bellard | (addr & ~TARGET_PAGE_MASK); |
2568 | 13eb76e0 | bellard | memcpy(buf, ptr, l); |
2569 | 13eb76e0 | bellard | } |
2570 | 13eb76e0 | bellard | } |
2571 | 13eb76e0 | bellard | len -= l; |
2572 | 13eb76e0 | bellard | buf += l; |
2573 | 13eb76e0 | bellard | addr += l; |
2574 | 13eb76e0 | bellard | } |
2575 | 13eb76e0 | bellard | } |
2576 | 8df1cd07 | bellard | |
2577 | d0ecd2aa | bellard | /* used for ROM loading : can write in RAM and ROM */
|
2578 | d0ecd2aa | bellard | void cpu_physical_memory_write_rom(target_phys_addr_t addr,
|
2579 | d0ecd2aa | bellard | const uint8_t *buf, int len) |
2580 | d0ecd2aa | bellard | { |
2581 | d0ecd2aa | bellard | int l;
|
2582 | d0ecd2aa | bellard | uint8_t *ptr; |
2583 | d0ecd2aa | bellard | target_phys_addr_t page; |
2584 | d0ecd2aa | bellard | unsigned long pd; |
2585 | d0ecd2aa | bellard | PhysPageDesc *p; |
2586 | d0ecd2aa | bellard | |
2587 | d0ecd2aa | bellard | while (len > 0) { |
2588 | d0ecd2aa | bellard | page = addr & TARGET_PAGE_MASK; |
2589 | d0ecd2aa | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
2590 | d0ecd2aa | bellard | if (l > len)
|
2591 | d0ecd2aa | bellard | l = len; |
2592 | d0ecd2aa | bellard | p = phys_page_find(page >> TARGET_PAGE_BITS); |
2593 | d0ecd2aa | bellard | if (!p) {
|
2594 | d0ecd2aa | bellard | pd = IO_MEM_UNASSIGNED; |
2595 | d0ecd2aa | bellard | } else {
|
2596 | d0ecd2aa | bellard | pd = p->phys_offset; |
2597 | d0ecd2aa | bellard | } |
2598 | d0ecd2aa | bellard | |
2599 | d0ecd2aa | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM &&
|
2600 | 2a4188a3 | bellard | (pd & ~TARGET_PAGE_MASK) != IO_MEM_ROM && |
2601 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
2602 | d0ecd2aa | bellard | /* do nothing */
|
2603 | d0ecd2aa | bellard | } else {
|
2604 | d0ecd2aa | bellard | unsigned long addr1; |
2605 | d0ecd2aa | bellard | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
2606 | d0ecd2aa | bellard | /* ROM/RAM case */
|
2607 | d0ecd2aa | bellard | ptr = phys_ram_base + addr1; |
2608 | d0ecd2aa | bellard | memcpy(ptr, buf, l); |
2609 | d0ecd2aa | bellard | } |
2610 | d0ecd2aa | bellard | len -= l; |
2611 | d0ecd2aa | bellard | buf += l; |
2612 | d0ecd2aa | bellard | addr += l; |
2613 | d0ecd2aa | bellard | } |
2614 | d0ecd2aa | bellard | } |
2615 | d0ecd2aa | bellard | |
2616 | d0ecd2aa | bellard | |
2617 | 8df1cd07 | bellard | /* warning: addr must be aligned */
|
2618 | 8df1cd07 | bellard | uint32_t ldl_phys(target_phys_addr_t addr) |
2619 | 8df1cd07 | bellard | { |
2620 | 8df1cd07 | bellard | int io_index;
|
2621 | 8df1cd07 | bellard | uint8_t *ptr; |
2622 | 8df1cd07 | bellard | uint32_t val; |
2623 | 8df1cd07 | bellard | unsigned long pd; |
2624 | 8df1cd07 | bellard | PhysPageDesc *p; |
2625 | 8df1cd07 | bellard | |
2626 | 8df1cd07 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
2627 | 8df1cd07 | bellard | if (!p) {
|
2628 | 8df1cd07 | bellard | pd = IO_MEM_UNASSIGNED; |
2629 | 8df1cd07 | bellard | } else {
|
2630 | 8df1cd07 | bellard | pd = p->phys_offset; |
2631 | 8df1cd07 | bellard | } |
2632 | 8df1cd07 | bellard | |
2633 | 2a4188a3 | bellard | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
2634 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
2635 | 8df1cd07 | bellard | /* I/O case */
|
2636 | 8df1cd07 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
2637 | 8df1cd07 | bellard | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr);
|
2638 | 8df1cd07 | bellard | } else {
|
2639 | 8df1cd07 | bellard | /* RAM case */
|
2640 | 8df1cd07 | bellard | ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) + |
2641 | 8df1cd07 | bellard | (addr & ~TARGET_PAGE_MASK); |
2642 | 8df1cd07 | bellard | val = ldl_p(ptr); |
2643 | 8df1cd07 | bellard | } |
2644 | 8df1cd07 | bellard | return val;
|
2645 | 8df1cd07 | bellard | } |
2646 | 8df1cd07 | bellard | |
2647 | 84b7b8e7 | bellard | /* warning: addr must be aligned */
|
2648 | 84b7b8e7 | bellard | uint64_t ldq_phys(target_phys_addr_t addr) |
2649 | 84b7b8e7 | bellard | { |
2650 | 84b7b8e7 | bellard | int io_index;
|
2651 | 84b7b8e7 | bellard | uint8_t *ptr; |
2652 | 84b7b8e7 | bellard | uint64_t val; |
2653 | 84b7b8e7 | bellard | unsigned long pd; |
2654 | 84b7b8e7 | bellard | PhysPageDesc *p; |
2655 | 84b7b8e7 | bellard | |
2656 | 84b7b8e7 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
2657 | 84b7b8e7 | bellard | if (!p) {
|
2658 | 84b7b8e7 | bellard | pd = IO_MEM_UNASSIGNED; |
2659 | 84b7b8e7 | bellard | } else {
|
2660 | 84b7b8e7 | bellard | pd = p->phys_offset; |
2661 | 84b7b8e7 | bellard | } |
2662 | 84b7b8e7 | bellard | |
2663 | 2a4188a3 | bellard | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
2664 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
2665 | 84b7b8e7 | bellard | /* I/O case */
|
2666 | 84b7b8e7 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
2667 | 84b7b8e7 | bellard | #ifdef TARGET_WORDS_BIGENDIAN
|
2668 | 84b7b8e7 | bellard | val = (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr) << 32; |
2669 | 84b7b8e7 | bellard | val |= io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4); |
2670 | 84b7b8e7 | bellard | #else
|
2671 | 84b7b8e7 | bellard | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr);
|
2672 | 84b7b8e7 | bellard | val |= (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4) << 32; |
2673 | 84b7b8e7 | bellard | #endif
|
2674 | 84b7b8e7 | bellard | } else {
|
2675 | 84b7b8e7 | bellard | /* RAM case */
|
2676 | 84b7b8e7 | bellard | ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) + |
2677 | 84b7b8e7 | bellard | (addr & ~TARGET_PAGE_MASK); |
2678 | 84b7b8e7 | bellard | val = ldq_p(ptr); |
2679 | 84b7b8e7 | bellard | } |
2680 | 84b7b8e7 | bellard | return val;
|
2681 | 84b7b8e7 | bellard | } |
2682 | 84b7b8e7 | bellard | |
2683 | aab33094 | bellard | /* XXX: optimize */
|
2684 | aab33094 | bellard | uint32_t ldub_phys(target_phys_addr_t addr) |
2685 | aab33094 | bellard | { |
2686 | aab33094 | bellard | uint8_t val; |
2687 | aab33094 | bellard | cpu_physical_memory_read(addr, &val, 1);
|
2688 | aab33094 | bellard | return val;
|
2689 | aab33094 | bellard | } |
2690 | aab33094 | bellard | |
2691 | aab33094 | bellard | /* XXX: optimize */
|
2692 | aab33094 | bellard | uint32_t lduw_phys(target_phys_addr_t addr) |
2693 | aab33094 | bellard | { |
2694 | aab33094 | bellard | uint16_t val; |
2695 | aab33094 | bellard | cpu_physical_memory_read(addr, (uint8_t *)&val, 2);
|
2696 | aab33094 | bellard | return tswap16(val);
|
2697 | aab33094 | bellard | } |
2698 | aab33094 | bellard | |
2699 | 8df1cd07 | bellard | /* warning: addr must be aligned. The ram page is not masked as dirty
|
2700 | 8df1cd07 | bellard | and the code inside is not invalidated. It is useful if the dirty
|
2701 | 8df1cd07 | bellard | bits are used to track modified PTEs */
|
2702 | 8df1cd07 | bellard | void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val)
|
2703 | 8df1cd07 | bellard | { |
2704 | 8df1cd07 | bellard | int io_index;
|
2705 | 8df1cd07 | bellard | uint8_t *ptr; |
2706 | 8df1cd07 | bellard | unsigned long pd; |
2707 | 8df1cd07 | bellard | PhysPageDesc *p; |
2708 | 8df1cd07 | bellard | |
2709 | 8df1cd07 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
2710 | 8df1cd07 | bellard | if (!p) {
|
2711 | 8df1cd07 | bellard | pd = IO_MEM_UNASSIGNED; |
2712 | 8df1cd07 | bellard | } else {
|
2713 | 8df1cd07 | bellard | pd = p->phys_offset; |
2714 | 8df1cd07 | bellard | } |
2715 | 8df1cd07 | bellard | |
2716 | 3a7d929e | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
2717 | 8df1cd07 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
2718 | 8df1cd07 | bellard | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
|
2719 | 8df1cd07 | bellard | } else {
|
2720 | 8df1cd07 | bellard | ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) + |
2721 | 8df1cd07 | bellard | (addr & ~TARGET_PAGE_MASK); |
2722 | 8df1cd07 | bellard | stl_p(ptr, val); |
2723 | 8df1cd07 | bellard | } |
2724 | 8df1cd07 | bellard | } |
2725 | 8df1cd07 | bellard | |
2726 | bc98a7ef | j_mayer | void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val)
|
2727 | bc98a7ef | j_mayer | { |
2728 | bc98a7ef | j_mayer | int io_index;
|
2729 | bc98a7ef | j_mayer | uint8_t *ptr; |
2730 | bc98a7ef | j_mayer | unsigned long pd; |
2731 | bc98a7ef | j_mayer | PhysPageDesc *p; |
2732 | bc98a7ef | j_mayer | |
2733 | bc98a7ef | j_mayer | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
2734 | bc98a7ef | j_mayer | if (!p) {
|
2735 | bc98a7ef | j_mayer | pd = IO_MEM_UNASSIGNED; |
2736 | bc98a7ef | j_mayer | } else {
|
2737 | bc98a7ef | j_mayer | pd = p->phys_offset; |
2738 | bc98a7ef | j_mayer | } |
2739 | bc98a7ef | j_mayer | |
2740 | bc98a7ef | j_mayer | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
2741 | bc98a7ef | j_mayer | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
2742 | bc98a7ef | j_mayer | #ifdef TARGET_WORDS_BIGENDIAN
|
2743 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val >> 32); |
2744 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val); |
2745 | bc98a7ef | j_mayer | #else
|
2746 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
|
2747 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val >> 32); |
2748 | bc98a7ef | j_mayer | #endif
|
2749 | bc98a7ef | j_mayer | } else {
|
2750 | bc98a7ef | j_mayer | ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) + |
2751 | bc98a7ef | j_mayer | (addr & ~TARGET_PAGE_MASK); |
2752 | bc98a7ef | j_mayer | stq_p(ptr, val); |
2753 | bc98a7ef | j_mayer | } |
2754 | bc98a7ef | j_mayer | } |
2755 | bc98a7ef | j_mayer | |
2756 | 8df1cd07 | bellard | /* warning: addr must be aligned */
|
2757 | 8df1cd07 | bellard | void stl_phys(target_phys_addr_t addr, uint32_t val)
|
2758 | 8df1cd07 | bellard | { |
2759 | 8df1cd07 | bellard | int io_index;
|
2760 | 8df1cd07 | bellard | uint8_t *ptr; |
2761 | 8df1cd07 | bellard | unsigned long pd; |
2762 | 8df1cd07 | bellard | PhysPageDesc *p; |
2763 | 8df1cd07 | bellard | |
2764 | 8df1cd07 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
2765 | 8df1cd07 | bellard | if (!p) {
|
2766 | 8df1cd07 | bellard | pd = IO_MEM_UNASSIGNED; |
2767 | 8df1cd07 | bellard | } else {
|
2768 | 8df1cd07 | bellard | pd = p->phys_offset; |
2769 | 8df1cd07 | bellard | } |
2770 | 8df1cd07 | bellard | |
2771 | 3a7d929e | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
2772 | 8df1cd07 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
2773 | 8df1cd07 | bellard | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
|
2774 | 8df1cd07 | bellard | } else {
|
2775 | 8df1cd07 | bellard | unsigned long addr1; |
2776 | 8df1cd07 | bellard | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
2777 | 8df1cd07 | bellard | /* RAM case */
|
2778 | 8df1cd07 | bellard | ptr = phys_ram_base + addr1; |
2779 | 8df1cd07 | bellard | stl_p(ptr, val); |
2780 | 3a7d929e | bellard | if (!cpu_physical_memory_is_dirty(addr1)) {
|
2781 | 3a7d929e | bellard | /* invalidate code */
|
2782 | 3a7d929e | bellard | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
2783 | 3a7d929e | bellard | /* set dirty bit */
|
2784 | f23db169 | bellard | phys_ram_dirty[addr1 >> TARGET_PAGE_BITS] |= |
2785 | f23db169 | bellard | (0xff & ~CODE_DIRTY_FLAG);
|
2786 | 3a7d929e | bellard | } |
2787 | 8df1cd07 | bellard | } |
2788 | 8df1cd07 | bellard | } |
2789 | 8df1cd07 | bellard | |
2790 | aab33094 | bellard | /* XXX: optimize */
|
2791 | aab33094 | bellard | void stb_phys(target_phys_addr_t addr, uint32_t val)
|
2792 | aab33094 | bellard | { |
2793 | aab33094 | bellard | uint8_t v = val; |
2794 | aab33094 | bellard | cpu_physical_memory_write(addr, &v, 1);
|
2795 | aab33094 | bellard | } |
2796 | aab33094 | bellard | |
2797 | aab33094 | bellard | /* XXX: optimize */
|
2798 | aab33094 | bellard | void stw_phys(target_phys_addr_t addr, uint32_t val)
|
2799 | aab33094 | bellard | { |
2800 | aab33094 | bellard | uint16_t v = tswap16(val); |
2801 | aab33094 | bellard | cpu_physical_memory_write(addr, (const uint8_t *)&v, 2); |
2802 | aab33094 | bellard | } |
2803 | aab33094 | bellard | |
2804 | aab33094 | bellard | /* XXX: optimize */
|
2805 | aab33094 | bellard | void stq_phys(target_phys_addr_t addr, uint64_t val)
|
2806 | aab33094 | bellard | { |
2807 | aab33094 | bellard | val = tswap64(val); |
2808 | aab33094 | bellard | cpu_physical_memory_write(addr, (const uint8_t *)&val, 8); |
2809 | aab33094 | bellard | } |
2810 | aab33094 | bellard | |
2811 | 13eb76e0 | bellard | #endif
|
2812 | 13eb76e0 | bellard | |
2813 | 13eb76e0 | bellard | /* virtual memory access for debug */
|
2814 | b448f2f3 | bellard | int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
|
2815 | b448f2f3 | bellard | uint8_t *buf, int len, int is_write) |
2816 | 13eb76e0 | bellard | { |
2817 | 13eb76e0 | bellard | int l;
|
2818 | 9b3c35e0 | j_mayer | target_phys_addr_t phys_addr; |
2819 | 9b3c35e0 | j_mayer | target_ulong page; |
2820 | 13eb76e0 | bellard | |
2821 | 13eb76e0 | bellard | while (len > 0) { |
2822 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
2823 | 13eb76e0 | bellard | phys_addr = cpu_get_phys_page_debug(env, page); |
2824 | 13eb76e0 | bellard | /* if no physical page mapped, return an error */
|
2825 | 13eb76e0 | bellard | if (phys_addr == -1) |
2826 | 13eb76e0 | bellard | return -1; |
2827 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
2828 | 13eb76e0 | bellard | if (l > len)
|
2829 | 13eb76e0 | bellard | l = len; |
2830 | b448f2f3 | bellard | cpu_physical_memory_rw(phys_addr + (addr & ~TARGET_PAGE_MASK), |
2831 | b448f2f3 | bellard | buf, l, is_write); |
2832 | 13eb76e0 | bellard | len -= l; |
2833 | 13eb76e0 | bellard | buf += l; |
2834 | 13eb76e0 | bellard | addr += l; |
2835 | 13eb76e0 | bellard | } |
2836 | 13eb76e0 | bellard | return 0; |
2837 | 13eb76e0 | bellard | } |
2838 | 13eb76e0 | bellard | |
2839 | e3db7226 | bellard | void dump_exec_info(FILE *f,
|
2840 | e3db7226 | bellard | int (*cpu_fprintf)(FILE *f, const char *fmt, ...)) |
2841 | e3db7226 | bellard | { |
2842 | e3db7226 | bellard | int i, target_code_size, max_target_code_size;
|
2843 | e3db7226 | bellard | int direct_jmp_count, direct_jmp2_count, cross_page;
|
2844 | e3db7226 | bellard | TranslationBlock *tb; |
2845 | e3db7226 | bellard | |
2846 | e3db7226 | bellard | target_code_size = 0;
|
2847 | e3db7226 | bellard | max_target_code_size = 0;
|
2848 | e3db7226 | bellard | cross_page = 0;
|
2849 | e3db7226 | bellard | direct_jmp_count = 0;
|
2850 | e3db7226 | bellard | direct_jmp2_count = 0;
|
2851 | e3db7226 | bellard | for(i = 0; i < nb_tbs; i++) { |
2852 | e3db7226 | bellard | tb = &tbs[i]; |
2853 | e3db7226 | bellard | target_code_size += tb->size; |
2854 | e3db7226 | bellard | if (tb->size > max_target_code_size)
|
2855 | e3db7226 | bellard | max_target_code_size = tb->size; |
2856 | e3db7226 | bellard | if (tb->page_addr[1] != -1) |
2857 | e3db7226 | bellard | cross_page++; |
2858 | e3db7226 | bellard | if (tb->tb_next_offset[0] != 0xffff) { |
2859 | e3db7226 | bellard | direct_jmp_count++; |
2860 | e3db7226 | bellard | if (tb->tb_next_offset[1] != 0xffff) { |
2861 | e3db7226 | bellard | direct_jmp2_count++; |
2862 | e3db7226 | bellard | } |
2863 | e3db7226 | bellard | } |
2864 | e3db7226 | bellard | } |
2865 | e3db7226 | bellard | /* XXX: avoid using doubles ? */
|
2866 | e3db7226 | bellard | cpu_fprintf(f, "TB count %d\n", nb_tbs);
|
2867 | e3db7226 | bellard | cpu_fprintf(f, "TB avg target size %d max=%d bytes\n",
|
2868 | e3db7226 | bellard | nb_tbs ? target_code_size / nb_tbs : 0,
|
2869 | e3db7226 | bellard | max_target_code_size); |
2870 | e3db7226 | bellard | cpu_fprintf(f, "TB avg host size %d bytes (expansion ratio: %0.1f)\n",
|
2871 | e3db7226 | bellard | nb_tbs ? (code_gen_ptr - code_gen_buffer) / nb_tbs : 0,
|
2872 | e3db7226 | bellard | target_code_size ? (double) (code_gen_ptr - code_gen_buffer) / target_code_size : 0); |
2873 | e3db7226 | bellard | cpu_fprintf(f, "cross page TB count %d (%d%%)\n",
|
2874 | e3db7226 | bellard | cross_page, |
2875 | e3db7226 | bellard | nb_tbs ? (cross_page * 100) / nb_tbs : 0); |
2876 | e3db7226 | bellard | cpu_fprintf(f, "direct jump count %d (%d%%) (2 jumps=%d %d%%)\n",
|
2877 | e3db7226 | bellard | direct_jmp_count, |
2878 | e3db7226 | bellard | nb_tbs ? (direct_jmp_count * 100) / nb_tbs : 0, |
2879 | e3db7226 | bellard | direct_jmp2_count, |
2880 | e3db7226 | bellard | nb_tbs ? (direct_jmp2_count * 100) / nb_tbs : 0); |
2881 | e3db7226 | bellard | cpu_fprintf(f, "TB flush count %d\n", tb_flush_count);
|
2882 | e3db7226 | bellard | cpu_fprintf(f, "TB invalidate count %d\n", tb_phys_invalidate_count);
|
2883 | e3db7226 | bellard | cpu_fprintf(f, "TLB flush count %d\n", tlb_flush_count);
|
2884 | e3db7226 | bellard | } |
2885 | e3db7226 | bellard | |
2886 | 61382a50 | bellard | #if !defined(CONFIG_USER_ONLY)
|
2887 | 61382a50 | bellard | |
2888 | 61382a50 | bellard | #define MMUSUFFIX _cmmu
|
2889 | 61382a50 | bellard | #define GETPC() NULL |
2890 | 61382a50 | bellard | #define env cpu_single_env
|
2891 | b769d8fe | bellard | #define SOFTMMU_CODE_ACCESS
|
2892 | 61382a50 | bellard | |
2893 | 61382a50 | bellard | #define SHIFT 0 |
2894 | 61382a50 | bellard | #include "softmmu_template.h" |
2895 | 61382a50 | bellard | |
2896 | 61382a50 | bellard | #define SHIFT 1 |
2897 | 61382a50 | bellard | #include "softmmu_template.h" |
2898 | 61382a50 | bellard | |
2899 | 61382a50 | bellard | #define SHIFT 2 |
2900 | 61382a50 | bellard | #include "softmmu_template.h" |
2901 | 61382a50 | bellard | |
2902 | 61382a50 | bellard | #define SHIFT 3 |
2903 | 61382a50 | bellard | #include "softmmu_template.h" |
2904 | 61382a50 | bellard | |
2905 | 61382a50 | bellard | #undef env
|
2906 | 61382a50 | bellard | |
2907 | 61382a50 | bellard | #endif |