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Commit | Line | Data |
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54936004 | 1 | /* |
fd6ce8f6 | 2 | * virtual page mapping and translated block handling |
54936004 FB |
3 | * |
4 | * Copyright (c) 2003 Fabrice Bellard | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with this library; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
67b915a5 | 20 | #include "config.h" |
d5a8f07c FB |
21 | #ifdef _WIN32 |
22 | #include <windows.h> | |
23 | #else | |
a98d49b1 | 24 | #include <sys/types.h> |
d5a8f07c FB |
25 | #include <sys/mman.h> |
26 | #endif | |
54936004 FB |
27 | #include <stdlib.h> |
28 | #include <stdio.h> | |
29 | #include <stdarg.h> | |
30 | #include <string.h> | |
31 | #include <errno.h> | |
32 | #include <unistd.h> | |
33 | #include <inttypes.h> | |
34 | ||
6180a181 FB |
35 | #include "cpu.h" |
36 | #include "exec-all.h" | |
54936004 | 37 | |
fd6ce8f6 | 38 | //#define DEBUG_TB_INVALIDATE |
66e85a21 | 39 | //#define DEBUG_FLUSH |
9fa3e853 | 40 | //#define DEBUG_TLB |
fd6ce8f6 FB |
41 | |
42 | /* make various TB consistency checks */ | |
43 | //#define DEBUG_TB_CHECK | |
98857888 | 44 | //#define DEBUG_TLB_CHECK |
fd6ce8f6 FB |
45 | |
46 | /* threshold to flush the translated code buffer */ | |
47 | #define CODE_GEN_BUFFER_MAX_SIZE (CODE_GEN_BUFFER_SIZE - CODE_GEN_MAX_SIZE) | |
48 | ||
9fa3e853 FB |
49 | #define SMC_BITMAP_USE_THRESHOLD 10 |
50 | ||
51 | #define MMAP_AREA_START 0x00000000 | |
52 | #define MMAP_AREA_END 0xa8000000 | |
fd6ce8f6 | 53 | |
108c49b8 FB |
54 | #if defined(TARGET_SPARC64) |
55 | #define TARGET_PHYS_ADDR_SPACE_BITS 41 | |
56 | #elif defined(TARGET_PPC64) | |
57 | #define TARGET_PHYS_ADDR_SPACE_BITS 42 | |
58 | #else | |
59 | /* Note: for compatibility with kqemu, we use 32 bits for x86_64 */ | |
60 | #define TARGET_PHYS_ADDR_SPACE_BITS 32 | |
61 | #endif | |
62 | ||
fd6ce8f6 FB |
63 | TranslationBlock tbs[CODE_GEN_MAX_BLOCKS]; |
64 | TranslationBlock *tb_hash[CODE_GEN_HASH_SIZE]; | |
9fa3e853 | 65 | TranslationBlock *tb_phys_hash[CODE_GEN_PHYS_HASH_SIZE]; |
fd6ce8f6 | 66 | int nb_tbs; |
eb51d102 FB |
67 | /* any access to the tbs or the page table must use this lock */ |
68 | spinlock_t tb_lock = SPIN_LOCK_UNLOCKED; | |
fd6ce8f6 | 69 | |
b8076a74 | 70 | uint8_t code_gen_buffer[CODE_GEN_BUFFER_SIZE] __attribute__((aligned (32))); |
fd6ce8f6 FB |
71 | uint8_t *code_gen_ptr; |
72 | ||
9fa3e853 FB |
73 | int phys_ram_size; |
74 | int phys_ram_fd; | |
75 | uint8_t *phys_ram_base; | |
1ccde1cb | 76 | uint8_t *phys_ram_dirty; |
9fa3e853 | 77 | |
54936004 | 78 | typedef struct PageDesc { |
92e873b9 | 79 | /* list of TBs intersecting this ram page */ |
fd6ce8f6 | 80 | TranslationBlock *first_tb; |
9fa3e853 FB |
81 | /* in order to optimize self modifying code, we count the number |
82 | of lookups we do to a given page to use a bitmap */ | |
83 | unsigned int code_write_count; | |
84 | uint8_t *code_bitmap; | |
85 | #if defined(CONFIG_USER_ONLY) | |
86 | unsigned long flags; | |
87 | #endif | |
54936004 FB |
88 | } PageDesc; |
89 | ||
92e873b9 FB |
90 | typedef struct PhysPageDesc { |
91 | /* offset in host memory of the page + io_index in the low 12 bits */ | |
e04f40b5 | 92 | uint32_t phys_offset; |
92e873b9 FB |
93 | } PhysPageDesc; |
94 | ||
90f18422 FB |
95 | /* Note: the VirtPage handling is absolete and will be suppressed |
96 | ASAP */ | |
9fa3e853 FB |
97 | typedef struct VirtPageDesc { |
98 | /* physical address of code page. It is valid only if 'valid_tag' | |
99 | matches 'virt_valid_tag' */ | |
100 | target_ulong phys_addr; | |
101 | unsigned int valid_tag; | |
102 | #if !defined(CONFIG_SOFTMMU) | |
103 | /* original page access rights. It is valid only if 'valid_tag' | |
104 | matches 'virt_valid_tag' */ | |
105 | unsigned int prot; | |
106 | #endif | |
107 | } VirtPageDesc; | |
108 | ||
54936004 FB |
109 | #define L2_BITS 10 |
110 | #define L1_BITS (32 - L2_BITS - TARGET_PAGE_BITS) | |
111 | ||
112 | #define L1_SIZE (1 << L1_BITS) | |
113 | #define L2_SIZE (1 << L2_BITS) | |
114 | ||
33417e70 | 115 | static void io_mem_init(void); |
fd6ce8f6 | 116 | |
83fb7adf FB |
117 | unsigned long qemu_real_host_page_size; |
118 | unsigned long qemu_host_page_bits; | |
119 | unsigned long qemu_host_page_size; | |
120 | unsigned long qemu_host_page_mask; | |
54936004 | 121 | |
92e873b9 | 122 | /* XXX: for system emulation, it could just be an array */ |
54936004 | 123 | static PageDesc *l1_map[L1_SIZE]; |
0a962c02 | 124 | PhysPageDesc **l1_phys_map; |
54936004 | 125 | |
9fa3e853 | 126 | #if !defined(CONFIG_USER_ONLY) |
90f18422 FB |
127 | #if TARGET_LONG_BITS > 32 |
128 | #define VIRT_L_BITS 9 | |
129 | #define VIRT_L_SIZE (1 << VIRT_L_BITS) | |
130 | static void *l1_virt_map[VIRT_L_SIZE]; | |
131 | #else | |
9fa3e853 | 132 | static VirtPageDesc *l1_virt_map[L1_SIZE]; |
90f18422 | 133 | #endif |
9fa3e853 FB |
134 | static unsigned int virt_valid_tag; |
135 | #endif | |
136 | ||
33417e70 | 137 | /* io memory support */ |
33417e70 FB |
138 | CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4]; |
139 | CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4]; | |
a4193c8a | 140 | void *io_mem_opaque[IO_MEM_NB_ENTRIES]; |
33417e70 FB |
141 | static int io_mem_nb; |
142 | ||
34865134 FB |
143 | /* log support */ |
144 | char *logfilename = "/tmp/qemu.log"; | |
145 | FILE *logfile; | |
146 | int loglevel; | |
147 | ||
e3db7226 FB |
148 | /* statistics */ |
149 | static int tlb_flush_count; | |
150 | static int tb_flush_count; | |
151 | static int tb_phys_invalidate_count; | |
152 | ||
b346ff46 | 153 | static void page_init(void) |
54936004 | 154 | { |
83fb7adf | 155 | /* NOTE: we can always suppose that qemu_host_page_size >= |
54936004 | 156 | TARGET_PAGE_SIZE */ |
67b915a5 | 157 | #ifdef _WIN32 |
d5a8f07c FB |
158 | { |
159 | SYSTEM_INFO system_info; | |
160 | DWORD old_protect; | |
161 | ||
162 | GetSystemInfo(&system_info); | |
163 | qemu_real_host_page_size = system_info.dwPageSize; | |
164 | ||
165 | VirtualProtect(code_gen_buffer, sizeof(code_gen_buffer), | |
166 | PAGE_EXECUTE_READWRITE, &old_protect); | |
167 | } | |
67b915a5 | 168 | #else |
83fb7adf | 169 | qemu_real_host_page_size = getpagesize(); |
d5a8f07c FB |
170 | { |
171 | unsigned long start, end; | |
172 | ||
173 | start = (unsigned long)code_gen_buffer; | |
174 | start &= ~(qemu_real_host_page_size - 1); | |
175 | ||
176 | end = (unsigned long)code_gen_buffer + sizeof(code_gen_buffer); | |
177 | end += qemu_real_host_page_size - 1; | |
178 | end &= ~(qemu_real_host_page_size - 1); | |
179 | ||
180 | mprotect((void *)start, end - start, | |
181 | PROT_READ | PROT_WRITE | PROT_EXEC); | |
182 | } | |
67b915a5 | 183 | #endif |
d5a8f07c | 184 | |
83fb7adf FB |
185 | if (qemu_host_page_size == 0) |
186 | qemu_host_page_size = qemu_real_host_page_size; | |
187 | if (qemu_host_page_size < TARGET_PAGE_SIZE) | |
188 | qemu_host_page_size = TARGET_PAGE_SIZE; | |
189 | qemu_host_page_bits = 0; | |
190 | while ((1 << qemu_host_page_bits) < qemu_host_page_size) | |
191 | qemu_host_page_bits++; | |
192 | qemu_host_page_mask = ~(qemu_host_page_size - 1); | |
9fa3e853 FB |
193 | #if !defined(CONFIG_USER_ONLY) |
194 | virt_valid_tag = 1; | |
195 | #endif | |
108c49b8 FB |
196 | l1_phys_map = qemu_vmalloc(L1_SIZE * sizeof(void *)); |
197 | memset(l1_phys_map, 0, L1_SIZE * sizeof(void *)); | |
54936004 FB |
198 | } |
199 | ||
fd6ce8f6 | 200 | static inline PageDesc *page_find_alloc(unsigned int index) |
54936004 | 201 | { |
54936004 FB |
202 | PageDesc **lp, *p; |
203 | ||
54936004 FB |
204 | lp = &l1_map[index >> L2_BITS]; |
205 | p = *lp; | |
206 | if (!p) { | |
207 | /* allocate if not found */ | |
59817ccb | 208 | p = qemu_malloc(sizeof(PageDesc) * L2_SIZE); |
fd6ce8f6 | 209 | memset(p, 0, sizeof(PageDesc) * L2_SIZE); |
54936004 FB |
210 | *lp = p; |
211 | } | |
212 | return p + (index & (L2_SIZE - 1)); | |
213 | } | |
214 | ||
fd6ce8f6 | 215 | static inline PageDesc *page_find(unsigned int index) |
54936004 | 216 | { |
54936004 FB |
217 | PageDesc *p; |
218 | ||
54936004 FB |
219 | p = l1_map[index >> L2_BITS]; |
220 | if (!p) | |
221 | return 0; | |
fd6ce8f6 FB |
222 | return p + (index & (L2_SIZE - 1)); |
223 | } | |
224 | ||
108c49b8 | 225 | static PhysPageDesc *phys_page_find_alloc(target_phys_addr_t index, int alloc) |
92e873b9 | 226 | { |
108c49b8 | 227 | void **lp, **p; |
92e873b9 | 228 | |
108c49b8 FB |
229 | p = (void **)l1_phys_map; |
230 | #if TARGET_PHYS_ADDR_SPACE_BITS > 32 | |
231 | ||
232 | #if TARGET_PHYS_ADDR_SPACE_BITS > (32 + L1_BITS) | |
233 | #error unsupported TARGET_PHYS_ADDR_SPACE_BITS | |
234 | #endif | |
235 | lp = p + ((index >> (L1_BITS + L2_BITS)) & (L1_SIZE - 1)); | |
92e873b9 FB |
236 | p = *lp; |
237 | if (!p) { | |
238 | /* allocate if not found */ | |
108c49b8 FB |
239 | if (!alloc) |
240 | return NULL; | |
241 | p = qemu_vmalloc(sizeof(void *) * L1_SIZE); | |
242 | memset(p, 0, sizeof(void *) * L1_SIZE); | |
243 | *lp = p; | |
244 | } | |
245 | #endif | |
246 | lp = p + ((index >> L2_BITS) & (L1_SIZE - 1)); | |
247 | p = *lp; | |
248 | if (!p) { | |
249 | /* allocate if not found */ | |
250 | if (!alloc) | |
251 | return NULL; | |
0a962c02 | 252 | p = qemu_vmalloc(sizeof(PhysPageDesc) * L2_SIZE); |
92e873b9 FB |
253 | memset(p, 0, sizeof(PhysPageDesc) * L2_SIZE); |
254 | *lp = p; | |
255 | } | |
108c49b8 | 256 | return ((PhysPageDesc *)p) + (index & (L2_SIZE - 1)); |
92e873b9 FB |
257 | } |
258 | ||
108c49b8 | 259 | static inline PhysPageDesc *phys_page_find(target_phys_addr_t index) |
92e873b9 | 260 | { |
108c49b8 | 261 | return phys_page_find_alloc(index, 0); |
92e873b9 FB |
262 | } |
263 | ||
9fa3e853 | 264 | #if !defined(CONFIG_USER_ONLY) |
3a7d929e FB |
265 | static void tlb_protect_code(CPUState *env, ram_addr_t ram_addr, |
266 | target_ulong vaddr); | |
267 | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, | |
268 | target_ulong vaddr); | |
9fa3e853 | 269 | |
90f18422 | 270 | static VirtPageDesc *virt_page_find_alloc(target_ulong index, int alloc) |
fd6ce8f6 | 271 | { |
c27004ec | 272 | #if TARGET_LONG_BITS > 32 |
90f18422 FB |
273 | void **p, **lp; |
274 | ||
275 | p = l1_virt_map; | |
276 | lp = p + ((index >> (5 * VIRT_L_BITS)) & (VIRT_L_SIZE - 1)); | |
277 | p = *lp; | |
278 | if (!p) { | |
279 | if (!alloc) | |
280 | return NULL; | |
281 | p = qemu_mallocz(sizeof(void *) * VIRT_L_SIZE); | |
282 | *lp = p; | |
283 | } | |
284 | lp = p + ((index >> (4 * VIRT_L_BITS)) & (VIRT_L_SIZE - 1)); | |
285 | p = *lp; | |
286 | if (!p) { | |
287 | if (!alloc) | |
288 | return NULL; | |
289 | p = qemu_mallocz(sizeof(void *) * VIRT_L_SIZE); | |
290 | *lp = p; | |
291 | } | |
292 | lp = p + ((index >> (3 * VIRT_L_BITS)) & (VIRT_L_SIZE - 1)); | |
293 | p = *lp; | |
294 | if (!p) { | |
295 | if (!alloc) | |
296 | return NULL; | |
297 | p = qemu_mallocz(sizeof(void *) * VIRT_L_SIZE); | |
298 | *lp = p; | |
299 | } | |
300 | lp = p + ((index >> (2 * VIRT_L_BITS)) & (VIRT_L_SIZE - 1)); | |
301 | p = *lp; | |
302 | if (!p) { | |
303 | if (!alloc) | |
304 | return NULL; | |
305 | p = qemu_mallocz(sizeof(void *) * VIRT_L_SIZE); | |
306 | *lp = p; | |
307 | } | |
308 | lp = p + ((index >> (1 * VIRT_L_BITS)) & (VIRT_L_SIZE - 1)); | |
309 | p = *lp; | |
310 | if (!p) { | |
311 | if (!alloc) | |
312 | return NULL; | |
313 | p = qemu_mallocz(sizeof(VirtPageDesc) * VIRT_L_SIZE); | |
314 | *lp = p; | |
315 | } | |
316 | return ((VirtPageDesc *)p) + (index & (VIRT_L_SIZE - 1)); | |
317 | #else | |
318 | VirtPageDesc *p, **lp; | |
319 | ||
9fa3e853 FB |
320 | lp = &l1_virt_map[index >> L2_BITS]; |
321 | p = *lp; | |
322 | if (!p) { | |
323 | /* allocate if not found */ | |
90f18422 FB |
324 | if (!alloc) |
325 | return NULL; | |
326 | p = qemu_mallocz(sizeof(VirtPageDesc) * L2_SIZE); | |
9fa3e853 FB |
327 | *lp = p; |
328 | } | |
329 | return p + (index & (L2_SIZE - 1)); | |
90f18422 | 330 | #endif |
9fa3e853 FB |
331 | } |
332 | ||
90f18422 | 333 | static inline VirtPageDesc *virt_page_find(target_ulong index) |
9fa3e853 | 334 | { |
90f18422 FB |
335 | return virt_page_find_alloc(index, 0); |
336 | } | |
9fa3e853 | 337 | |
90f18422 FB |
338 | #if TARGET_LONG_BITS > 32 |
339 | static void virt_page_flush_internal(void **p, int level) | |
340 | { | |
341 | int i; | |
342 | if (level == 0) { | |
343 | VirtPageDesc *q = (VirtPageDesc *)p; | |
344 | for(i = 0; i < VIRT_L_SIZE; i++) | |
345 | q[i].valid_tag = 0; | |
346 | } else { | |
347 | level--; | |
348 | for(i = 0; i < VIRT_L_SIZE; i++) { | |
349 | if (p[i]) | |
350 | virt_page_flush_internal(p[i], level); | |
351 | } | |
352 | } | |
54936004 | 353 | } |
90f18422 | 354 | #endif |
54936004 | 355 | |
9fa3e853 | 356 | static void virt_page_flush(void) |
54936004 | 357 | { |
9fa3e853 FB |
358 | virt_valid_tag++; |
359 | ||
360 | if (virt_valid_tag == 0) { | |
361 | virt_valid_tag = 1; | |
90f18422 FB |
362 | #if TARGET_LONG_BITS > 32 |
363 | virt_page_flush_internal(l1_virt_map, 5); | |
364 | #else | |
365 | { | |
366 | int i, j; | |
367 | VirtPageDesc *p; | |
368 | for(i = 0; i < L1_SIZE; i++) { | |
369 | p = l1_virt_map[i]; | |
370 | if (p) { | |
371 | for(j = 0; j < L2_SIZE; j++) | |
372 | p[j].valid_tag = 0; | |
373 | } | |
9fa3e853 | 374 | } |
fd6ce8f6 | 375 | } |
90f18422 | 376 | #endif |
54936004 FB |
377 | } |
378 | } | |
9fa3e853 FB |
379 | #else |
380 | static void virt_page_flush(void) | |
381 | { | |
382 | } | |
383 | #endif | |
fd6ce8f6 | 384 | |
b346ff46 | 385 | void cpu_exec_init(void) |
fd6ce8f6 FB |
386 | { |
387 | if (!code_gen_ptr) { | |
388 | code_gen_ptr = code_gen_buffer; | |
b346ff46 | 389 | page_init(); |
33417e70 | 390 | io_mem_init(); |
fd6ce8f6 FB |
391 | } |
392 | } | |
393 | ||
9fa3e853 FB |
394 | static inline void invalidate_page_bitmap(PageDesc *p) |
395 | { | |
396 | if (p->code_bitmap) { | |
59817ccb | 397 | qemu_free(p->code_bitmap); |
9fa3e853 FB |
398 | p->code_bitmap = NULL; |
399 | } | |
400 | p->code_write_count = 0; | |
401 | } | |
402 | ||
fd6ce8f6 FB |
403 | /* set to NULL all the 'first_tb' fields in all PageDescs */ |
404 | static void page_flush_tb(void) | |
405 | { | |
406 | int i, j; | |
407 | PageDesc *p; | |
408 | ||
409 | for(i = 0; i < L1_SIZE; i++) { | |
410 | p = l1_map[i]; | |
411 | if (p) { | |
9fa3e853 FB |
412 | for(j = 0; j < L2_SIZE; j++) { |
413 | p->first_tb = NULL; | |
414 | invalidate_page_bitmap(p); | |
415 | p++; | |
416 | } | |
fd6ce8f6 FB |
417 | } |
418 | } | |
419 | } | |
420 | ||
421 | /* flush all the translation blocks */ | |
d4e8164f | 422 | /* XXX: tb_flush is currently not thread safe */ |
0124311e | 423 | void tb_flush(CPUState *env) |
fd6ce8f6 | 424 | { |
0124311e | 425 | #if defined(DEBUG_FLUSH) |
fd6ce8f6 FB |
426 | printf("qemu: flush code_size=%d nb_tbs=%d avg_tb_size=%d\n", |
427 | code_gen_ptr - code_gen_buffer, | |
428 | nb_tbs, | |
0124311e | 429 | nb_tbs > 0 ? (code_gen_ptr - code_gen_buffer) / nb_tbs : 0); |
fd6ce8f6 FB |
430 | #endif |
431 | nb_tbs = 0; | |
8a8a608f | 432 | memset (tb_hash, 0, CODE_GEN_HASH_SIZE * sizeof (void *)); |
9fa3e853 FB |
433 | virt_page_flush(); |
434 | ||
8a8a608f | 435 | memset (tb_phys_hash, 0, CODE_GEN_PHYS_HASH_SIZE * sizeof (void *)); |
fd6ce8f6 | 436 | page_flush_tb(); |
9fa3e853 | 437 | |
fd6ce8f6 | 438 | code_gen_ptr = code_gen_buffer; |
d4e8164f FB |
439 | /* XXX: flush processor icache at this point if cache flush is |
440 | expensive */ | |
e3db7226 | 441 | tb_flush_count++; |
fd6ce8f6 FB |
442 | } |
443 | ||
444 | #ifdef DEBUG_TB_CHECK | |
445 | ||
446 | static void tb_invalidate_check(unsigned long address) | |
447 | { | |
448 | TranslationBlock *tb; | |
449 | int i; | |
450 | address &= TARGET_PAGE_MASK; | |
451 | for(i = 0;i < CODE_GEN_HASH_SIZE; i++) { | |
452 | for(tb = tb_hash[i]; tb != NULL; tb = tb->hash_next) { | |
453 | if (!(address + TARGET_PAGE_SIZE <= tb->pc || | |
454 | address >= tb->pc + tb->size)) { | |
455 | printf("ERROR invalidate: address=%08lx PC=%08lx size=%04x\n", | |
456 | address, tb->pc, tb->size); | |
457 | } | |
458 | } | |
459 | } | |
460 | } | |
461 | ||
462 | /* verify that all the pages have correct rights for code */ | |
463 | static void tb_page_check(void) | |
464 | { | |
465 | TranslationBlock *tb; | |
466 | int i, flags1, flags2; | |
467 | ||
468 | for(i = 0;i < CODE_GEN_HASH_SIZE; i++) { | |
469 | for(tb = tb_hash[i]; tb != NULL; tb = tb->hash_next) { | |
470 | flags1 = page_get_flags(tb->pc); | |
471 | flags2 = page_get_flags(tb->pc + tb->size - 1); | |
472 | if ((flags1 & PAGE_WRITE) || (flags2 & PAGE_WRITE)) { | |
473 | printf("ERROR page flags: PC=%08lx size=%04x f1=%x f2=%x\n", | |
474 | tb->pc, tb->size, flags1, flags2); | |
475 | } | |
476 | } | |
477 | } | |
478 | } | |
479 | ||
d4e8164f FB |
480 | void tb_jmp_check(TranslationBlock *tb) |
481 | { | |
482 | TranslationBlock *tb1; | |
483 | unsigned int n1; | |
484 | ||
485 | /* suppress any remaining jumps to this TB */ | |
486 | tb1 = tb->jmp_first; | |
487 | for(;;) { | |
488 | n1 = (long)tb1 & 3; | |
489 | tb1 = (TranslationBlock *)((long)tb1 & ~3); | |
490 | if (n1 == 2) | |
491 | break; | |
492 | tb1 = tb1->jmp_next[n1]; | |
493 | } | |
494 | /* check end of list */ | |
495 | if (tb1 != tb) { | |
496 | printf("ERROR: jmp_list from 0x%08lx\n", (long)tb); | |
497 | } | |
498 | } | |
499 | ||
fd6ce8f6 FB |
500 | #endif |
501 | ||
502 | /* invalidate one TB */ | |
503 | static inline void tb_remove(TranslationBlock **ptb, TranslationBlock *tb, | |
504 | int next_offset) | |
505 | { | |
506 | TranslationBlock *tb1; | |
507 | for(;;) { | |
508 | tb1 = *ptb; | |
509 | if (tb1 == tb) { | |
510 | *ptb = *(TranslationBlock **)((char *)tb1 + next_offset); | |
511 | break; | |
512 | } | |
513 | ptb = (TranslationBlock **)((char *)tb1 + next_offset); | |
514 | } | |
515 | } | |
516 | ||
9fa3e853 FB |
517 | static inline void tb_page_remove(TranslationBlock **ptb, TranslationBlock *tb) |
518 | { | |
519 | TranslationBlock *tb1; | |
520 | unsigned int n1; | |
521 | ||
522 | for(;;) { | |
523 | tb1 = *ptb; | |
524 | n1 = (long)tb1 & 3; | |
525 | tb1 = (TranslationBlock *)((long)tb1 & ~3); | |
526 | if (tb1 == tb) { | |
527 | *ptb = tb1->page_next[n1]; | |
528 | break; | |
529 | } | |
530 | ptb = &tb1->page_next[n1]; | |
531 | } | |
532 | } | |
533 | ||
d4e8164f FB |
534 | static inline void tb_jmp_remove(TranslationBlock *tb, int n) |
535 | { | |
536 | TranslationBlock *tb1, **ptb; | |
537 | unsigned int n1; | |
538 | ||
539 | ptb = &tb->jmp_next[n]; | |
540 | tb1 = *ptb; | |
541 | if (tb1) { | |
542 | /* find tb(n) in circular list */ | |
543 | for(;;) { | |
544 | tb1 = *ptb; | |
545 | n1 = (long)tb1 & 3; | |
546 | tb1 = (TranslationBlock *)((long)tb1 & ~3); | |
547 | if (n1 == n && tb1 == tb) | |
548 | break; | |
549 | if (n1 == 2) { | |
550 | ptb = &tb1->jmp_first; | |
551 | } else { | |
552 | ptb = &tb1->jmp_next[n1]; | |
553 | } | |
554 | } | |
555 | /* now we can suppress tb(n) from the list */ | |
556 | *ptb = tb->jmp_next[n]; | |
557 | ||
558 | tb->jmp_next[n] = NULL; | |
559 | } | |
560 | } | |
561 | ||
562 | /* reset the jump entry 'n' of a TB so that it is not chained to | |
563 | another TB */ | |
564 | static inline void tb_reset_jump(TranslationBlock *tb, int n) | |
565 | { | |
566 | tb_set_jmp_target(tb, n, (unsigned long)(tb->tc_ptr + tb->tb_next_offset[n])); | |
567 | } | |
568 | ||
9fa3e853 | 569 | static inline void tb_invalidate(TranslationBlock *tb) |
fd6ce8f6 | 570 | { |
d4e8164f | 571 | unsigned int h, n1; |
9fa3e853 | 572 | TranslationBlock *tb1, *tb2, **ptb; |
d4e8164f | 573 | |
36bdbe54 | 574 | tb_invalidated_flag = 1; |
59817ccb | 575 | |
fd6ce8f6 FB |
576 | /* remove the TB from the hash list */ |
577 | h = tb_hash_func(tb->pc); | |
9fa3e853 FB |
578 | ptb = &tb_hash[h]; |
579 | for(;;) { | |
580 | tb1 = *ptb; | |
581 | /* NOTE: the TB is not necessarily linked in the hash. It | |
582 | indicates that it is not currently used */ | |
583 | if (tb1 == NULL) | |
584 | return; | |
585 | if (tb1 == tb) { | |
586 | *ptb = tb1->hash_next; | |
587 | break; | |
588 | } | |
589 | ptb = &tb1->hash_next; | |
fd6ce8f6 | 590 | } |
d4e8164f FB |
591 | |
592 | /* suppress this TB from the two jump lists */ | |
593 | tb_jmp_remove(tb, 0); | |
594 | tb_jmp_remove(tb, 1); | |
595 | ||
596 | /* suppress any remaining jumps to this TB */ | |
597 | tb1 = tb->jmp_first; | |
598 | for(;;) { | |
599 | n1 = (long)tb1 & 3; | |
600 | if (n1 == 2) | |
601 | break; | |
602 | tb1 = (TranslationBlock *)((long)tb1 & ~3); | |
603 | tb2 = tb1->jmp_next[n1]; | |
604 | tb_reset_jump(tb1, n1); | |
605 | tb1->jmp_next[n1] = NULL; | |
606 | tb1 = tb2; | |
607 | } | |
608 | tb->jmp_first = (TranslationBlock *)((long)tb | 2); /* fail safe */ | |
fd6ce8f6 FB |
609 | } |
610 | ||
9fa3e853 | 611 | static inline void tb_phys_invalidate(TranslationBlock *tb, unsigned int page_addr) |
fd6ce8f6 | 612 | { |
fd6ce8f6 | 613 | PageDesc *p; |
9fa3e853 FB |
614 | unsigned int h; |
615 | target_ulong phys_pc; | |
616 | ||
617 | /* remove the TB from the hash list */ | |
618 | phys_pc = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK); | |
619 | h = tb_phys_hash_func(phys_pc); | |
620 | tb_remove(&tb_phys_hash[h], tb, | |
621 | offsetof(TranslationBlock, phys_hash_next)); | |
622 | ||
623 | /* remove the TB from the page list */ | |
624 | if (tb->page_addr[0] != page_addr) { | |
625 | p = page_find(tb->page_addr[0] >> TARGET_PAGE_BITS); | |
626 | tb_page_remove(&p->first_tb, tb); | |
627 | invalidate_page_bitmap(p); | |
628 | } | |
629 | if (tb->page_addr[1] != -1 && tb->page_addr[1] != page_addr) { | |
630 | p = page_find(tb->page_addr[1] >> TARGET_PAGE_BITS); | |
631 | tb_page_remove(&p->first_tb, tb); | |
632 | invalidate_page_bitmap(p); | |
633 | } | |
634 | ||
635 | tb_invalidate(tb); | |
e3db7226 | 636 | tb_phys_invalidate_count++; |
9fa3e853 FB |
637 | } |
638 | ||
639 | static inline void set_bits(uint8_t *tab, int start, int len) | |
640 | { | |
641 | int end, mask, end1; | |
642 | ||
643 | end = start + len; | |
644 | tab += start >> 3; | |
645 | mask = 0xff << (start & 7); | |
646 | if ((start & ~7) == (end & ~7)) { | |
647 | if (start < end) { | |
648 | mask &= ~(0xff << (end & 7)); | |
649 | *tab |= mask; | |
650 | } | |
651 | } else { | |
652 | *tab++ |= mask; | |
653 | start = (start + 8) & ~7; | |
654 | end1 = end & ~7; | |
655 | while (start < end1) { | |
656 | *tab++ = 0xff; | |
657 | start += 8; | |
658 | } | |
659 | if (start < end) { | |
660 | mask = ~(0xff << (end & 7)); | |
661 | *tab |= mask; | |
662 | } | |
663 | } | |
664 | } | |
665 | ||
666 | static void build_page_bitmap(PageDesc *p) | |
667 | { | |
668 | int n, tb_start, tb_end; | |
669 | TranslationBlock *tb; | |
670 | ||
59817ccb | 671 | p->code_bitmap = qemu_malloc(TARGET_PAGE_SIZE / 8); |
9fa3e853 FB |
672 | if (!p->code_bitmap) |
673 | return; | |
674 | memset(p->code_bitmap, 0, TARGET_PAGE_SIZE / 8); | |
675 | ||
676 | tb = p->first_tb; | |
677 | while (tb != NULL) { | |
678 | n = (long)tb & 3; | |
679 | tb = (TranslationBlock *)((long)tb & ~3); | |
680 | /* NOTE: this is subtle as a TB may span two physical pages */ | |
681 | if (n == 0) { | |
682 | /* NOTE: tb_end may be after the end of the page, but | |
683 | it is not a problem */ | |
684 | tb_start = tb->pc & ~TARGET_PAGE_MASK; | |
685 | tb_end = tb_start + tb->size; | |
686 | if (tb_end > TARGET_PAGE_SIZE) | |
687 | tb_end = TARGET_PAGE_SIZE; | |
688 | } else { | |
689 | tb_start = 0; | |
690 | tb_end = ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); | |
691 | } | |
692 | set_bits(p->code_bitmap, tb_start, tb_end - tb_start); | |
693 | tb = tb->page_next[n]; | |
694 | } | |
695 | } | |
696 | ||
d720b93d FB |
697 | #ifdef TARGET_HAS_PRECISE_SMC |
698 | ||
699 | static void tb_gen_code(CPUState *env, | |
700 | target_ulong pc, target_ulong cs_base, int flags, | |
701 | int cflags) | |
702 | { | |
703 | TranslationBlock *tb; | |
704 | uint8_t *tc_ptr; | |
705 | target_ulong phys_pc, phys_page2, virt_page2; | |
706 | int code_gen_size; | |
707 | ||
c27004ec FB |
708 | phys_pc = get_phys_addr_code(env, pc); |
709 | tb = tb_alloc(pc); | |
d720b93d FB |
710 | if (!tb) { |
711 | /* flush must be done */ | |
712 | tb_flush(env); | |
713 | /* cannot fail at this point */ | |
c27004ec | 714 | tb = tb_alloc(pc); |
d720b93d FB |
715 | } |
716 | tc_ptr = code_gen_ptr; | |
717 | tb->tc_ptr = tc_ptr; | |
718 | tb->cs_base = cs_base; | |
719 | tb->flags = flags; | |
720 | tb->cflags = cflags; | |
721 | cpu_gen_code(env, tb, CODE_GEN_MAX_SIZE, &code_gen_size); | |
722 | code_gen_ptr = (void *)(((unsigned long)code_gen_ptr + code_gen_size + CODE_GEN_ALIGN - 1) & ~(CODE_GEN_ALIGN - 1)); | |
723 | ||
724 | /* check next page if needed */ | |
c27004ec | 725 | virt_page2 = (pc + tb->size - 1) & TARGET_PAGE_MASK; |
d720b93d | 726 | phys_page2 = -1; |
c27004ec | 727 | if ((pc & TARGET_PAGE_MASK) != virt_page2) { |
d720b93d FB |
728 | phys_page2 = get_phys_addr_code(env, virt_page2); |
729 | } | |
730 | tb_link_phys(tb, phys_pc, phys_page2); | |
731 | } | |
732 | #endif | |
733 | ||
9fa3e853 FB |
734 | /* invalidate all TBs which intersect with the target physical page |
735 | starting in range [start;end[. NOTE: start and end must refer to | |
d720b93d FB |
736 | the same physical page. 'is_cpu_write_access' should be true if called |
737 | from a real cpu write access: the virtual CPU will exit the current | |
738 | TB if code is modified inside this TB. */ | |
739 | void tb_invalidate_phys_page_range(target_ulong start, target_ulong end, | |
740 | int is_cpu_write_access) | |
741 | { | |
742 | int n, current_tb_modified, current_tb_not_found, current_flags; | |
d720b93d | 743 | CPUState *env = cpu_single_env; |
9fa3e853 | 744 | PageDesc *p; |
ea1c1802 | 745 | TranslationBlock *tb, *tb_next, *current_tb, *saved_tb; |
9fa3e853 | 746 | target_ulong tb_start, tb_end; |
d720b93d | 747 | target_ulong current_pc, current_cs_base; |
9fa3e853 FB |
748 | |
749 | p = page_find(start >> TARGET_PAGE_BITS); | |
750 | if (!p) | |
751 | return; | |
752 | if (!p->code_bitmap && | |
d720b93d FB |
753 | ++p->code_write_count >= SMC_BITMAP_USE_THRESHOLD && |
754 | is_cpu_write_access) { | |
9fa3e853 FB |
755 | /* build code bitmap */ |
756 | build_page_bitmap(p); | |
757 | } | |
758 | ||
759 | /* we remove all the TBs in the range [start, end[ */ | |
760 | /* XXX: see if in some cases it could be faster to invalidate all the code */ | |
d720b93d FB |
761 | current_tb_not_found = is_cpu_write_access; |
762 | current_tb_modified = 0; | |
763 | current_tb = NULL; /* avoid warning */ | |
764 | current_pc = 0; /* avoid warning */ | |
765 | current_cs_base = 0; /* avoid warning */ | |
766 | current_flags = 0; /* avoid warning */ | |
9fa3e853 FB |
767 | tb = p->first_tb; |
768 | while (tb != NULL) { | |
769 | n = (long)tb & 3; | |
770 | tb = (TranslationBlock *)((long)tb & ~3); | |
771 | tb_next = tb->page_next[n]; | |
772 | /* NOTE: this is subtle as a TB may span two physical pages */ | |
773 | if (n == 0) { | |
774 | /* NOTE: tb_end may be after the end of the page, but | |
775 | it is not a problem */ | |
776 | tb_start = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK); | |
777 | tb_end = tb_start + tb->size; | |
778 | } else { | |
779 | tb_start = tb->page_addr[1]; | |
780 | tb_end = tb_start + ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); | |
781 | } | |
782 | if (!(tb_end <= start || tb_start >= end)) { | |
d720b93d FB |
783 | #ifdef TARGET_HAS_PRECISE_SMC |
784 | if (current_tb_not_found) { | |
785 | current_tb_not_found = 0; | |
786 | current_tb = NULL; | |
787 | if (env->mem_write_pc) { | |
788 | /* now we have a real cpu fault */ | |
789 | current_tb = tb_find_pc(env->mem_write_pc); | |
790 | } | |
791 | } | |
792 | if (current_tb == tb && | |
793 | !(current_tb->cflags & CF_SINGLE_INSN)) { | |
794 | /* If we are modifying the current TB, we must stop | |
795 | its execution. We could be more precise by checking | |
796 | that the modification is after the current PC, but it | |
797 | would require a specialized function to partially | |
798 | restore the CPU state */ | |
799 | ||
800 | current_tb_modified = 1; | |
801 | cpu_restore_state(current_tb, env, | |
802 | env->mem_write_pc, NULL); | |
803 | #if defined(TARGET_I386) | |
804 | current_flags = env->hflags; | |
805 | current_flags |= (env->eflags & (IOPL_MASK | TF_MASK | VM_MASK)); | |
806 | current_cs_base = (target_ulong)env->segs[R_CS].base; | |
807 | current_pc = current_cs_base + env->eip; | |
808 | #else | |
809 | #error unsupported CPU | |
810 | #endif | |
811 | } | |
812 | #endif /* TARGET_HAS_PRECISE_SMC */ | |
ea1c1802 FB |
813 | saved_tb = env->current_tb; |
814 | env->current_tb = NULL; | |
9fa3e853 | 815 | tb_phys_invalidate(tb, -1); |
ea1c1802 FB |
816 | env->current_tb = saved_tb; |
817 | if (env->interrupt_request && env->current_tb) | |
818 | cpu_interrupt(env, env->interrupt_request); | |
9fa3e853 FB |
819 | } |
820 | tb = tb_next; | |
821 | } | |
822 | #if !defined(CONFIG_USER_ONLY) | |
823 | /* if no code remaining, no need to continue to use slow writes */ | |
824 | if (!p->first_tb) { | |
825 | invalidate_page_bitmap(p); | |
d720b93d FB |
826 | if (is_cpu_write_access) { |
827 | tlb_unprotect_code_phys(env, start, env->mem_write_vaddr); | |
828 | } | |
829 | } | |
830 | #endif | |
831 | #ifdef TARGET_HAS_PRECISE_SMC | |
832 | if (current_tb_modified) { | |
833 | /* we generate a block containing just the instruction | |
834 | modifying the memory. It will ensure that it cannot modify | |
835 | itself */ | |
ea1c1802 | 836 | env->current_tb = NULL; |
d720b93d FB |
837 | tb_gen_code(env, current_pc, current_cs_base, current_flags, |
838 | CF_SINGLE_INSN); | |
839 | cpu_resume_from_signal(env, NULL); | |
9fa3e853 | 840 | } |
fd6ce8f6 | 841 | #endif |
9fa3e853 | 842 | } |
fd6ce8f6 | 843 | |
9fa3e853 | 844 | /* len must be <= 8 and start must be a multiple of len */ |
d720b93d | 845 | static inline void tb_invalidate_phys_page_fast(target_ulong start, int len) |
9fa3e853 FB |
846 | { |
847 | PageDesc *p; | |
848 | int offset, b; | |
59817ccb | 849 | #if 0 |
a4193c8a FB |
850 | if (1) { |
851 | if (loglevel) { | |
852 | fprintf(logfile, "modifying code at 0x%x size=%d EIP=%x PC=%08x\n", | |
853 | cpu_single_env->mem_write_vaddr, len, | |
854 | cpu_single_env->eip, | |
855 | cpu_single_env->eip + (long)cpu_single_env->segs[R_CS].base); | |
856 | } | |
59817ccb FB |
857 | } |
858 | #endif | |
9fa3e853 FB |
859 | p = page_find(start >> TARGET_PAGE_BITS); |
860 | if (!p) | |
861 | return; | |
862 | if (p->code_bitmap) { | |
863 | offset = start & ~TARGET_PAGE_MASK; | |
864 | b = p->code_bitmap[offset >> 3] >> (offset & 7); | |
865 | if (b & ((1 << len) - 1)) | |
866 | goto do_invalidate; | |
867 | } else { | |
868 | do_invalidate: | |
d720b93d | 869 | tb_invalidate_phys_page_range(start, start + len, 1); |
9fa3e853 FB |
870 | } |
871 | } | |
872 | ||
9fa3e853 | 873 | #if !defined(CONFIG_SOFTMMU) |
d720b93d FB |
874 | static void tb_invalidate_phys_page(target_ulong addr, |
875 | unsigned long pc, void *puc) | |
9fa3e853 | 876 | { |
d720b93d FB |
877 | int n, current_flags, current_tb_modified; |
878 | target_ulong current_pc, current_cs_base; | |
9fa3e853 | 879 | PageDesc *p; |
d720b93d FB |
880 | TranslationBlock *tb, *current_tb; |
881 | #ifdef TARGET_HAS_PRECISE_SMC | |
882 | CPUState *env = cpu_single_env; | |
883 | #endif | |
9fa3e853 FB |
884 | |
885 | addr &= TARGET_PAGE_MASK; | |
886 | p = page_find(addr >> TARGET_PAGE_BITS); | |
887 | if (!p) | |
888 | return; | |
889 | tb = p->first_tb; | |
d720b93d FB |
890 | current_tb_modified = 0; |
891 | current_tb = NULL; | |
892 | current_pc = 0; /* avoid warning */ | |
893 | current_cs_base = 0; /* avoid warning */ | |
894 | current_flags = 0; /* avoid warning */ | |
895 | #ifdef TARGET_HAS_PRECISE_SMC | |
896 | if (tb && pc != 0) { | |
897 | current_tb = tb_find_pc(pc); | |
898 | } | |
899 | #endif | |
9fa3e853 FB |
900 | while (tb != NULL) { |
901 | n = (long)tb & 3; | |
902 | tb = (TranslationBlock *)((long)tb & ~3); | |
d720b93d FB |
903 | #ifdef TARGET_HAS_PRECISE_SMC |
904 | if (current_tb == tb && | |
905 | !(current_tb->cflags & CF_SINGLE_INSN)) { | |
906 | /* If we are modifying the current TB, we must stop | |
907 | its execution. We could be more precise by checking | |
908 | that the modification is after the current PC, but it | |
909 | would require a specialized function to partially | |
910 | restore the CPU state */ | |
911 | ||
912 | current_tb_modified = 1; | |
913 | cpu_restore_state(current_tb, env, pc, puc); | |
914 | #if defined(TARGET_I386) | |
915 | current_flags = env->hflags; | |
916 | current_flags |= (env->eflags & (IOPL_MASK | TF_MASK | VM_MASK)); | |
917 | current_cs_base = (target_ulong)env->segs[R_CS].base; | |
918 | current_pc = current_cs_base + env->eip; | |
919 | #else | |
920 | #error unsupported CPU | |
921 | #endif | |
922 | } | |
923 | #endif /* TARGET_HAS_PRECISE_SMC */ | |
9fa3e853 FB |
924 | tb_phys_invalidate(tb, addr); |
925 | tb = tb->page_next[n]; | |
926 | } | |
fd6ce8f6 | 927 | p->first_tb = NULL; |
d720b93d FB |
928 | #ifdef TARGET_HAS_PRECISE_SMC |
929 | if (current_tb_modified) { | |
930 | /* we generate a block containing just the instruction | |
931 | modifying the memory. It will ensure that it cannot modify | |
932 | itself */ | |
ea1c1802 | 933 | env->current_tb = NULL; |
d720b93d FB |
934 | tb_gen_code(env, current_pc, current_cs_base, current_flags, |
935 | CF_SINGLE_INSN); | |
936 | cpu_resume_from_signal(env, puc); | |
937 | } | |
938 | #endif | |
fd6ce8f6 | 939 | } |
9fa3e853 | 940 | #endif |
fd6ce8f6 FB |
941 | |
942 | /* add the tb in the target page and protect it if necessary */ | |
9fa3e853 FB |
943 | static inline void tb_alloc_page(TranslationBlock *tb, |
944 | unsigned int n, unsigned int page_addr) | |
fd6ce8f6 FB |
945 | { |
946 | PageDesc *p; | |
9fa3e853 FB |
947 | TranslationBlock *last_first_tb; |
948 | ||
949 | tb->page_addr[n] = page_addr; | |
3a7d929e | 950 | p = page_find_alloc(page_addr >> TARGET_PAGE_BITS); |
9fa3e853 FB |
951 | tb->page_next[n] = p->first_tb; |
952 | last_first_tb = p->first_tb; | |
953 | p->first_tb = (TranslationBlock *)((long)tb | n); | |
954 | invalidate_page_bitmap(p); | |
fd6ce8f6 | 955 | |
107db443 | 956 | #if defined(TARGET_HAS_SMC) || 1 |
d720b93d | 957 | |
9fa3e853 | 958 | #if defined(CONFIG_USER_ONLY) |
fd6ce8f6 | 959 | if (p->flags & PAGE_WRITE) { |
9fa3e853 FB |
960 | unsigned long host_start, host_end, addr; |
961 | int prot; | |
962 | ||
fd6ce8f6 FB |
963 | /* force the host page as non writable (writes will have a |
964 | page fault + mprotect overhead) */ | |
83fb7adf FB |
965 | host_start = page_addr & qemu_host_page_mask; |
966 | host_end = host_start + qemu_host_page_size; | |
fd6ce8f6 FB |
967 | prot = 0; |
968 | for(addr = host_start; addr < host_end; addr += TARGET_PAGE_SIZE) | |
969 | prot |= page_get_flags(addr); | |
83fb7adf | 970 | mprotect((void *)host_start, qemu_host_page_size, |
fd6ce8f6 FB |
971 | (prot & PAGE_BITS) & ~PAGE_WRITE); |
972 | #ifdef DEBUG_TB_INVALIDATE | |
973 | printf("protecting code page: 0x%08lx\n", | |
974 | host_start); | |
975 | #endif | |
976 | p->flags &= ~PAGE_WRITE; | |
fd6ce8f6 | 977 | } |
9fa3e853 FB |
978 | #else |
979 | /* if some code is already present, then the pages are already | |
980 | protected. So we handle the case where only the first TB is | |
981 | allocated in a physical page */ | |
982 | if (!last_first_tb) { | |
983 | target_ulong virt_addr; | |
984 | ||
985 | virt_addr = (tb->pc & TARGET_PAGE_MASK) + (n << TARGET_PAGE_BITS); | |
3a7d929e | 986 | tlb_protect_code(cpu_single_env, page_addr, virt_addr); |
9fa3e853 FB |
987 | } |
988 | #endif | |
d720b93d FB |
989 | |
990 | #endif /* TARGET_HAS_SMC */ | |
fd6ce8f6 FB |
991 | } |
992 | ||
993 | /* Allocate a new translation block. Flush the translation buffer if | |
994 | too many translation blocks or too much generated code. */ | |
c27004ec | 995 | TranslationBlock *tb_alloc(target_ulong pc) |
fd6ce8f6 FB |
996 | { |
997 | TranslationBlock *tb; | |
fd6ce8f6 FB |
998 | |
999 | if (nb_tbs >= CODE_GEN_MAX_BLOCKS || | |
1000 | (code_gen_ptr - code_gen_buffer) >= CODE_GEN_BUFFER_MAX_SIZE) | |
d4e8164f | 1001 | return NULL; |
fd6ce8f6 FB |
1002 | tb = &tbs[nb_tbs++]; |
1003 | tb->pc = pc; | |
b448f2f3 | 1004 | tb->cflags = 0; |
d4e8164f FB |
1005 | return tb; |
1006 | } | |
1007 | ||
9fa3e853 FB |
1008 | /* add a new TB and link it to the physical page tables. phys_page2 is |
1009 | (-1) to indicate that only one page contains the TB. */ | |
1010 | void tb_link_phys(TranslationBlock *tb, | |
1011 | target_ulong phys_pc, target_ulong phys_page2) | |
d4e8164f | 1012 | { |
9fa3e853 FB |
1013 | unsigned int h; |
1014 | TranslationBlock **ptb; | |
1015 | ||
1016 | /* add in the physical hash table */ | |
1017 | h = tb_phys_hash_func(phys_pc); | |
1018 | ptb = &tb_phys_hash[h]; | |
1019 | tb->phys_hash_next = *ptb; | |
1020 | *ptb = tb; | |
fd6ce8f6 FB |
1021 | |
1022 | /* add in the page list */ | |
9fa3e853 FB |
1023 | tb_alloc_page(tb, 0, phys_pc & TARGET_PAGE_MASK); |
1024 | if (phys_page2 != -1) | |
1025 | tb_alloc_page(tb, 1, phys_page2); | |
1026 | else | |
1027 | tb->page_addr[1] = -1; | |
61382a50 FB |
1028 | #ifdef DEBUG_TB_CHECK |
1029 | tb_page_check(); | |
1030 | #endif | |
9fa3e853 FB |
1031 | } |
1032 | ||
1033 | /* link the tb with the other TBs */ | |
1034 | void tb_link(TranslationBlock *tb) | |
1035 | { | |
1036 | #if !defined(CONFIG_USER_ONLY) | |
1037 | { | |
1038 | VirtPageDesc *vp; | |
1039 | target_ulong addr; | |
1040 | ||
1041 | /* save the code memory mappings (needed to invalidate the code) */ | |
1042 | addr = tb->pc & TARGET_PAGE_MASK; | |
90f18422 | 1043 | vp = virt_page_find_alloc(addr >> TARGET_PAGE_BITS, 1); |
98857888 FB |
1044 | #ifdef DEBUG_TLB_CHECK |
1045 | if (vp->valid_tag == virt_valid_tag && | |
1046 | vp->phys_addr != tb->page_addr[0]) { | |
1047 | printf("Error tb addr=0x%x phys=0x%x vp->phys_addr=0x%x\n", | |
1048 | addr, tb->page_addr[0], vp->phys_addr); | |
1049 | } | |
1050 | #endif | |
9fa3e853 | 1051 | vp->phys_addr = tb->page_addr[0]; |
59817ccb FB |
1052 | if (vp->valid_tag != virt_valid_tag) { |
1053 | vp->valid_tag = virt_valid_tag; | |
1054 | #if !defined(CONFIG_SOFTMMU) | |
1055 | vp->prot = 0; | |
1056 | #endif | |
1057 | } | |
9fa3e853 FB |
1058 | |
1059 | if (tb->page_addr[1] != -1) { | |
1060 | addr += TARGET_PAGE_SIZE; | |
90f18422 | 1061 | vp = virt_page_find_alloc(addr >> TARGET_PAGE_BITS, 1); |
98857888 FB |
1062 | #ifdef DEBUG_TLB_CHECK |
1063 | if (vp->valid_tag == virt_valid_tag && | |
1064 | vp->phys_addr != tb->page_addr[1]) { | |
1065 | printf("Error tb addr=0x%x phys=0x%x vp->phys_addr=0x%x\n", | |
1066 | addr, tb->page_addr[1], vp->phys_addr); | |
1067 | } | |
1068 | #endif | |
9fa3e853 | 1069 | vp->phys_addr = tb->page_addr[1]; |
59817ccb FB |
1070 | if (vp->valid_tag != virt_valid_tag) { |
1071 | vp->valid_tag = virt_valid_tag; | |
1072 | #if !defined(CONFIG_SOFTMMU) | |
1073 | vp->prot = 0; | |
1074 | #endif | |
1075 | } | |
9fa3e853 FB |
1076 | } |
1077 | } | |
1078 | #endif | |
1079 | ||
d4e8164f FB |
1080 | tb->jmp_first = (TranslationBlock *)((long)tb | 2); |
1081 | tb->jmp_next[0] = NULL; | |
1082 | tb->jmp_next[1] = NULL; | |
b448f2f3 FB |
1083 | #ifdef USE_CODE_COPY |
1084 | tb->cflags &= ~CF_FP_USED; | |
1085 | if (tb->cflags & CF_TB_FP_USED) | |
1086 | tb->cflags |= CF_FP_USED; | |
1087 | #endif | |
d4e8164f FB |
1088 | |
1089 | /* init original jump addresses */ | |
1090 | if (tb->tb_next_offset[0] != 0xffff) | |
1091 | tb_reset_jump(tb, 0); | |
1092 | if (tb->tb_next_offset[1] != 0xffff) | |
1093 | tb_reset_jump(tb, 1); | |
fd6ce8f6 FB |
1094 | } |
1095 | ||
9fa3e853 FB |
1096 | /* find the TB 'tb' such that tb[0].tc_ptr <= tc_ptr < |
1097 | tb[1].tc_ptr. Return NULL if not found */ | |
1098 | TranslationBlock *tb_find_pc(unsigned long tc_ptr) | |
fd6ce8f6 | 1099 | { |
9fa3e853 FB |
1100 | int m_min, m_max, m; |
1101 | unsigned long v; | |
1102 | TranslationBlock *tb; | |
a513fe19 FB |
1103 | |
1104 | if (nb_tbs <= 0) | |
1105 | return NULL; | |
1106 | if (tc_ptr < (unsigned long)code_gen_buffer || | |
1107 | tc_ptr >= (unsigned long)code_gen_ptr) | |
1108 | return NULL; | |
1109 | /* binary search (cf Knuth) */ | |
1110 | m_min = 0; | |
1111 | m_max = nb_tbs - 1; | |
1112 | while (m_min <= m_max) { | |
1113 | m = (m_min + m_max) >> 1; | |
1114 | tb = &tbs[m]; | |
1115 | v = (unsigned long)tb->tc_ptr; | |
1116 | if (v == tc_ptr) | |
1117 | return tb; | |
1118 | else if (tc_ptr < v) { | |
1119 | m_max = m - 1; | |
1120 | } else { | |
1121 | m_min = m + 1; | |
1122 | } | |
1123 | } | |
1124 | return &tbs[m_max]; | |
1125 | } | |
7501267e | 1126 | |
ea041c0e FB |
1127 | static void tb_reset_jump_recursive(TranslationBlock *tb); |
1128 | ||
1129 | static inline void tb_reset_jump_recursive2(TranslationBlock *tb, int n) | |
1130 | { | |
1131 | TranslationBlock *tb1, *tb_next, **ptb; | |
1132 | unsigned int n1; | |
1133 | ||
1134 | tb1 = tb->jmp_next[n]; | |
1135 | if (tb1 != NULL) { | |
1136 | /* find head of list */ | |
1137 | for(;;) { | |
1138 | n1 = (long)tb1 & 3; | |
1139 | tb1 = (TranslationBlock *)((long)tb1 & ~3); | |
1140 | if (n1 == 2) | |
1141 | break; | |
1142 | tb1 = tb1->jmp_next[n1]; | |
1143 | } | |
1144 | /* we are now sure now that tb jumps to tb1 */ | |
1145 | tb_next = tb1; | |
1146 | ||
1147 | /* remove tb from the jmp_first list */ | |
1148 | ptb = &tb_next->jmp_first; | |
1149 | for(;;) { | |
1150 | tb1 = *ptb; | |
1151 | n1 = (long)tb1 & 3; | |
1152 | tb1 = (TranslationBlock *)((long)tb1 & ~3); | |
1153 | if (n1 == n && tb1 == tb) | |
1154 | break; | |
1155 | ptb = &tb1->jmp_next[n1]; | |
1156 | } | |
1157 | *ptb = tb->jmp_next[n]; | |
1158 | tb->jmp_next[n] = NULL; | |
1159 | ||
1160 | /* suppress the jump to next tb in generated code */ | |
1161 | tb_reset_jump(tb, n); | |
1162 | ||
0124311e | 1163 | /* suppress jumps in the tb on which we could have jumped */ |
ea041c0e FB |
1164 | tb_reset_jump_recursive(tb_next); |
1165 | } | |
1166 | } | |
1167 | ||
1168 | static void tb_reset_jump_recursive(TranslationBlock *tb) | |
1169 | { | |
1170 | tb_reset_jump_recursive2(tb, 0); | |
1171 | tb_reset_jump_recursive2(tb, 1); | |
1172 | } | |
1173 | ||
1fddef4b | 1174 | #if defined(TARGET_HAS_ICE) |
d720b93d FB |
1175 | static void breakpoint_invalidate(CPUState *env, target_ulong pc) |
1176 | { | |
1177 | target_ulong phys_addr; | |
1178 | ||
1179 | phys_addr = cpu_get_phys_page_debug(env, pc); | |
1180 | tb_invalidate_phys_page_range(phys_addr, phys_addr + 1, 0); | |
1181 | } | |
c27004ec | 1182 | #endif |
d720b93d | 1183 | |
c33a346e FB |
1184 | /* add a breakpoint. EXCP_DEBUG is returned by the CPU loop if a |
1185 | breakpoint is reached */ | |
2e12669a | 1186 | int cpu_breakpoint_insert(CPUState *env, target_ulong pc) |
4c3a88a2 | 1187 | { |
1fddef4b | 1188 | #if defined(TARGET_HAS_ICE) |
4c3a88a2 | 1189 | int i; |
d720b93d | 1190 | |
4c3a88a2 FB |
1191 | for(i = 0; i < env->nb_breakpoints; i++) { |
1192 | if (env->breakpoints[i] == pc) | |
1193 | return 0; | |
1194 | } | |
1195 | ||
1196 | if (env->nb_breakpoints >= MAX_BREAKPOINTS) | |
1197 | return -1; | |
1198 | env->breakpoints[env->nb_breakpoints++] = pc; | |
d720b93d FB |
1199 | |
1200 | breakpoint_invalidate(env, pc); | |
4c3a88a2 FB |
1201 | return 0; |
1202 | #else | |
1203 | return -1; | |
1204 | #endif | |
1205 | } | |
1206 | ||
1207 | /* remove a breakpoint */ | |
2e12669a | 1208 | int cpu_breakpoint_remove(CPUState *env, target_ulong pc) |
4c3a88a2 | 1209 | { |
1fddef4b | 1210 | #if defined(TARGET_HAS_ICE) |
4c3a88a2 FB |
1211 | int i; |
1212 | for(i = 0; i < env->nb_breakpoints; i++) { | |
1213 | if (env->breakpoints[i] == pc) | |
1214 | goto found; | |
1215 | } | |
1216 | return -1; | |
1217 | found: | |
4c3a88a2 | 1218 | env->nb_breakpoints--; |
1fddef4b FB |
1219 | if (i < env->nb_breakpoints) |
1220 | env->breakpoints[i] = env->breakpoints[env->nb_breakpoints]; | |
d720b93d FB |
1221 | |
1222 | breakpoint_invalidate(env, pc); | |
4c3a88a2 FB |
1223 | return 0; |
1224 | #else | |
1225 | return -1; | |
1226 | #endif | |
1227 | } | |
1228 | ||
c33a346e FB |
1229 | /* enable or disable single step mode. EXCP_DEBUG is returned by the |
1230 | CPU loop after each instruction */ | |
1231 | void cpu_single_step(CPUState *env, int enabled) | |
1232 | { | |
1fddef4b | 1233 | #if defined(TARGET_HAS_ICE) |
c33a346e FB |
1234 | if (env->singlestep_enabled != enabled) { |
1235 | env->singlestep_enabled = enabled; | |
1236 | /* must flush all the translated code to avoid inconsistancies */ | |
9fa3e853 | 1237 | /* XXX: only flush what is necessary */ |
0124311e | 1238 | tb_flush(env); |
c33a346e FB |
1239 | } |
1240 | #endif | |
1241 | } | |
1242 | ||
34865134 FB |
1243 | /* enable or disable low levels log */ |
1244 | void cpu_set_log(int log_flags) | |
1245 | { | |
1246 | loglevel = log_flags; | |
1247 | if (loglevel && !logfile) { | |
1248 | logfile = fopen(logfilename, "w"); | |
1249 | if (!logfile) { | |
1250 | perror(logfilename); | |
1251 | _exit(1); | |
1252 | } | |
9fa3e853 FB |
1253 | #if !defined(CONFIG_SOFTMMU) |
1254 | /* must avoid mmap() usage of glibc by setting a buffer "by hand" */ | |
1255 | { | |
1256 | static uint8_t logfile_buf[4096]; | |
1257 | setvbuf(logfile, logfile_buf, _IOLBF, sizeof(logfile_buf)); | |
1258 | } | |
1259 | #else | |
34865134 | 1260 | setvbuf(logfile, NULL, _IOLBF, 0); |
9fa3e853 | 1261 | #endif |
34865134 FB |
1262 | } |
1263 | } | |
1264 | ||
1265 | void cpu_set_log_filename(const char *filename) | |
1266 | { | |
1267 | logfilename = strdup(filename); | |
1268 | } | |
c33a346e | 1269 | |
0124311e | 1270 | /* mask must never be zero, except for A20 change call */ |
68a79315 | 1271 | void cpu_interrupt(CPUState *env, int mask) |
ea041c0e FB |
1272 | { |
1273 | TranslationBlock *tb; | |
ee8b7021 | 1274 | static int interrupt_lock; |
59817ccb | 1275 | |
68a79315 | 1276 | env->interrupt_request |= mask; |
ea041c0e FB |
1277 | /* if the cpu is currently executing code, we must unlink it and |
1278 | all the potentially executing TB */ | |
1279 | tb = env->current_tb; | |
ee8b7021 FB |
1280 | if (tb && !testandset(&interrupt_lock)) { |
1281 | env->current_tb = NULL; | |
ea041c0e | 1282 | tb_reset_jump_recursive(tb); |
ee8b7021 | 1283 | interrupt_lock = 0; |
ea041c0e FB |
1284 | } |
1285 | } | |
1286 | ||
b54ad049 FB |
1287 | void cpu_reset_interrupt(CPUState *env, int mask) |
1288 | { | |
1289 | env->interrupt_request &= ~mask; | |
1290 | } | |
1291 | ||
f193c797 FB |
1292 | CPULogItem cpu_log_items[] = { |
1293 | { CPU_LOG_TB_OUT_ASM, "out_asm", | |
1294 | "show generated host assembly code for each compiled TB" }, | |
1295 | { CPU_LOG_TB_IN_ASM, "in_asm", | |
1296 | "show target assembly code for each compiled TB" }, | |
1297 | { CPU_LOG_TB_OP, "op", | |
1298 | "show micro ops for each compiled TB (only usable if 'in_asm' used)" }, | |
1299 | #ifdef TARGET_I386 | |
1300 | { CPU_LOG_TB_OP_OPT, "op_opt", | |
1301 | "show micro ops after optimization for each compiled TB" }, | |
1302 | #endif | |
1303 | { CPU_LOG_INT, "int", | |
1304 | "show interrupts/exceptions in short format" }, | |
1305 | { CPU_LOG_EXEC, "exec", | |
1306 | "show trace before each executed TB (lots of logs)" }, | |
9fddaa0c FB |
1307 | { CPU_LOG_TB_CPU, "cpu", |
1308 | "show CPU state before bloc translation" }, | |
f193c797 FB |
1309 | #ifdef TARGET_I386 |
1310 | { CPU_LOG_PCALL, "pcall", | |
1311 | "show protected mode far calls/returns/exceptions" }, | |
1312 | #endif | |
8e3a9fd2 | 1313 | #ifdef DEBUG_IOPORT |
fd872598 FB |
1314 | { CPU_LOG_IOPORT, "ioport", |
1315 | "show all i/o ports accesses" }, | |
8e3a9fd2 | 1316 | #endif |
f193c797 FB |
1317 | { 0, NULL, NULL }, |
1318 | }; | |
1319 | ||
1320 | static int cmp1(const char *s1, int n, const char *s2) | |
1321 | { | |
1322 | if (strlen(s2) != n) | |
1323 | return 0; | |
1324 | return memcmp(s1, s2, n) == 0; | |
1325 | } | |
1326 | ||
1327 | /* takes a comma separated list of log masks. Return 0 if error. */ | |
1328 | int cpu_str_to_log_mask(const char *str) | |
1329 | { | |
1330 | CPULogItem *item; | |
1331 | int mask; | |
1332 | const char *p, *p1; | |
1333 | ||
1334 | p = str; | |
1335 | mask = 0; | |
1336 | for(;;) { | |
1337 | p1 = strchr(p, ','); | |
1338 | if (!p1) | |
1339 | p1 = p + strlen(p); | |
8e3a9fd2 FB |
1340 | if(cmp1(p,p1-p,"all")) { |
1341 | for(item = cpu_log_items; item->mask != 0; item++) { | |
1342 | mask |= item->mask; | |
1343 | } | |
1344 | } else { | |
f193c797 FB |
1345 | for(item = cpu_log_items; item->mask != 0; item++) { |
1346 | if (cmp1(p, p1 - p, item->name)) | |
1347 | goto found; | |
1348 | } | |
1349 | return 0; | |
8e3a9fd2 | 1350 | } |
f193c797 FB |
1351 | found: |
1352 | mask |= item->mask; | |
1353 | if (*p1 != ',') | |
1354 | break; | |
1355 | p = p1 + 1; | |
1356 | } | |
1357 | return mask; | |
1358 | } | |
ea041c0e | 1359 | |
7501267e FB |
1360 | void cpu_abort(CPUState *env, const char *fmt, ...) |
1361 | { | |
1362 | va_list ap; | |
1363 | ||
1364 | va_start(ap, fmt); | |
1365 | fprintf(stderr, "qemu: fatal: "); | |
1366 | vfprintf(stderr, fmt, ap); | |
1367 | fprintf(stderr, "\n"); | |
1368 | #ifdef TARGET_I386 | |
7fe48483 FB |
1369 | cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU | X86_DUMP_CCOP); |
1370 | #else | |
1371 | cpu_dump_state(env, stderr, fprintf, 0); | |
7501267e FB |
1372 | #endif |
1373 | va_end(ap); | |
1374 | abort(); | |
1375 | } | |
1376 | ||
0124311e FB |
1377 | #if !defined(CONFIG_USER_ONLY) |
1378 | ||
ee8b7021 FB |
1379 | /* NOTE: if flush_global is true, also flush global entries (not |
1380 | implemented yet) */ | |
1381 | void tlb_flush(CPUState *env, int flush_global) | |
33417e70 | 1382 | { |
33417e70 | 1383 | int i; |
0124311e | 1384 | |
9fa3e853 FB |
1385 | #if defined(DEBUG_TLB) |
1386 | printf("tlb_flush:\n"); | |
1387 | #endif | |
0124311e FB |
1388 | /* must reset current TB so that interrupts cannot modify the |
1389 | links while we are modifying them */ | |
1390 | env->current_tb = NULL; | |
1391 | ||
33417e70 FB |
1392 | for(i = 0; i < CPU_TLB_SIZE; i++) { |
1393 | env->tlb_read[0][i].address = -1; | |
1394 | env->tlb_write[0][i].address = -1; | |
1395 | env->tlb_read[1][i].address = -1; | |
1396 | env->tlb_write[1][i].address = -1; | |
1397 | } | |
9fa3e853 FB |
1398 | |
1399 | virt_page_flush(); | |
8a8a608f | 1400 | memset (tb_hash, 0, CODE_GEN_HASH_SIZE * sizeof (void *)); |
9fa3e853 FB |
1401 | |
1402 | #if !defined(CONFIG_SOFTMMU) | |
1403 | munmap((void *)MMAP_AREA_START, MMAP_AREA_END - MMAP_AREA_START); | |
0a962c02 FB |
1404 | #endif |
1405 | #ifdef USE_KQEMU | |
1406 | if (env->kqemu_enabled) { | |
1407 | kqemu_flush(env, flush_global); | |
1408 | } | |
9fa3e853 | 1409 | #endif |
e3db7226 | 1410 | tlb_flush_count++; |
33417e70 FB |
1411 | } |
1412 | ||
274da6b2 | 1413 | static inline void tlb_flush_entry(CPUTLBEntry *tlb_entry, target_ulong addr) |
61382a50 FB |
1414 | { |
1415 | if (addr == (tlb_entry->address & | |
1416 | (TARGET_PAGE_MASK | TLB_INVALID_MASK))) | |
1417 | tlb_entry->address = -1; | |
1418 | } | |
1419 | ||
2e12669a | 1420 | void tlb_flush_page(CPUState *env, target_ulong addr) |
33417e70 | 1421 | { |
9fa3e853 FB |
1422 | int i, n; |
1423 | VirtPageDesc *vp; | |
1424 | PageDesc *p; | |
1425 | TranslationBlock *tb; | |
0124311e | 1426 | |
9fa3e853 | 1427 | #if defined(DEBUG_TLB) |
108c49b8 | 1428 | printf("tlb_flush_page: " TARGET_FMT_lx "\n", addr); |
9fa3e853 | 1429 | #endif |
0124311e FB |
1430 | /* must reset current TB so that interrupts cannot modify the |
1431 | links while we are modifying them */ | |
1432 | env->current_tb = NULL; | |
61382a50 FB |
1433 | |
1434 | addr &= TARGET_PAGE_MASK; | |
1435 | i = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); | |
1436 | tlb_flush_entry(&env->tlb_read[0][i], addr); | |
1437 | tlb_flush_entry(&env->tlb_write[0][i], addr); | |
1438 | tlb_flush_entry(&env->tlb_read[1][i], addr); | |
1439 | tlb_flush_entry(&env->tlb_write[1][i], addr); | |
0124311e | 1440 | |
9fa3e853 FB |
1441 | /* remove from the virtual pc hash table all the TB at this |
1442 | virtual address */ | |
1443 | ||
1444 | vp = virt_page_find(addr >> TARGET_PAGE_BITS); | |
1445 | if (vp && vp->valid_tag == virt_valid_tag) { | |
1446 | p = page_find(vp->phys_addr >> TARGET_PAGE_BITS); | |
1447 | if (p) { | |
1448 | /* we remove all the links to the TBs in this virtual page */ | |
1449 | tb = p->first_tb; | |
1450 | while (tb != NULL) { | |
1451 | n = (long)tb & 3; | |
1452 | tb = (TranslationBlock *)((long)tb & ~3); | |
1453 | if ((tb->pc & TARGET_PAGE_MASK) == addr || | |
1454 | ((tb->pc + tb->size - 1) & TARGET_PAGE_MASK) == addr) { | |
1455 | tb_invalidate(tb); | |
1456 | } | |
1457 | tb = tb->page_next[n]; | |
1458 | } | |
1459 | } | |
98857888 | 1460 | vp->valid_tag = 0; |
9fa3e853 FB |
1461 | } |
1462 | ||
0124311e | 1463 | #if !defined(CONFIG_SOFTMMU) |
9fa3e853 | 1464 | if (addr < MMAP_AREA_END) |
0124311e | 1465 | munmap((void *)addr, TARGET_PAGE_SIZE); |
61382a50 | 1466 | #endif |
0a962c02 FB |
1467 | #ifdef USE_KQEMU |
1468 | if (env->kqemu_enabled) { | |
1469 | kqemu_flush_page(env, addr); | |
1470 | } | |
1471 | #endif | |
9fa3e853 FB |
1472 | } |
1473 | ||
4f2ac237 | 1474 | static inline void tlb_protect_code1(CPUTLBEntry *tlb_entry, target_ulong addr) |
9fa3e853 FB |
1475 | { |
1476 | if (addr == (tlb_entry->address & | |
1477 | (TARGET_PAGE_MASK | TLB_INVALID_MASK)) && | |
3a7d929e FB |
1478 | (tlb_entry->address & ~TARGET_PAGE_MASK) == IO_MEM_RAM) { |
1479 | tlb_entry->address = (tlb_entry->address & TARGET_PAGE_MASK) | IO_MEM_NOTDIRTY; | |
9fa3e853 FB |
1480 | } |
1481 | } | |
1482 | ||
1483 | /* update the TLBs so that writes to code in the virtual page 'addr' | |
1484 | can be detected */ | |
3a7d929e FB |
1485 | static void tlb_protect_code(CPUState *env, ram_addr_t ram_addr, |
1486 | target_ulong vaddr) | |
9fa3e853 FB |
1487 | { |
1488 | int i; | |
1489 | ||
3a7d929e FB |
1490 | vaddr &= TARGET_PAGE_MASK; |
1491 | i = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); | |
1492 | tlb_protect_code1(&env->tlb_write[0][i], vaddr); | |
1493 | tlb_protect_code1(&env->tlb_write[1][i], vaddr); | |
1494 | ||
3a7d929e FB |
1495 | #ifdef USE_KQEMU |
1496 | if (env->kqemu_enabled) { | |
1497 | kqemu_set_notdirty(env, ram_addr); | |
1498 | } | |
1499 | #endif | |
f23db169 | 1500 | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] &= ~CODE_DIRTY_FLAG; |
3a7d929e | 1501 | |
9fa3e853 FB |
1502 | #if !defined(CONFIG_SOFTMMU) |
1503 | /* NOTE: as we generated the code for this page, it is already at | |
1504 | least readable */ | |
3a7d929e FB |
1505 | if (vaddr < MMAP_AREA_END) |
1506 | mprotect((void *)vaddr, TARGET_PAGE_SIZE, PROT_READ); | |
9fa3e853 FB |
1507 | #endif |
1508 | } | |
1509 | ||
9fa3e853 | 1510 | /* update the TLB so that writes in physical page 'phys_addr' are no longer |
3a7d929e FB |
1511 | tested for self modifying code */ |
1512 | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, | |
1513 | target_ulong vaddr) | |
9fa3e853 | 1514 | { |
3a7d929e | 1515 | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] |= CODE_DIRTY_FLAG; |
1ccde1cb FB |
1516 | } |
1517 | ||
1518 | static inline void tlb_reset_dirty_range(CPUTLBEntry *tlb_entry, | |
1519 | unsigned long start, unsigned long length) | |
1520 | { | |
1521 | unsigned long addr; | |
1522 | if ((tlb_entry->address & ~TARGET_PAGE_MASK) == IO_MEM_RAM) { | |
1523 | addr = (tlb_entry->address & TARGET_PAGE_MASK) + tlb_entry->addend; | |
1524 | if ((addr - start) < length) { | |
1525 | tlb_entry->address = (tlb_entry->address & TARGET_PAGE_MASK) | IO_MEM_NOTDIRTY; | |
1526 | } | |
1527 | } | |
1528 | } | |
1529 | ||
3a7d929e | 1530 | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end, |
0a962c02 | 1531 | int dirty_flags) |
1ccde1cb FB |
1532 | { |
1533 | CPUState *env; | |
4f2ac237 | 1534 | unsigned long length, start1; |
0a962c02 FB |
1535 | int i, mask, len; |
1536 | uint8_t *p; | |
1ccde1cb FB |
1537 | |
1538 | start &= TARGET_PAGE_MASK; | |
1539 | end = TARGET_PAGE_ALIGN(end); | |
1540 | ||
1541 | length = end - start; | |
1542 | if (length == 0) | |
1543 | return; | |
0a962c02 | 1544 | len = length >> TARGET_PAGE_BITS; |
1ccde1cb | 1545 | env = cpu_single_env; |
3a7d929e FB |
1546 | #ifdef USE_KQEMU |
1547 | if (env->kqemu_enabled) { | |
f23db169 FB |
1548 | ram_addr_t addr; |
1549 | addr = start; | |
1550 | for(i = 0; i < len; i++) { | |
1551 | kqemu_set_notdirty(env, addr); | |
1552 | addr += TARGET_PAGE_SIZE; | |
1553 | } | |
3a7d929e FB |
1554 | } |
1555 | #endif | |
f23db169 FB |
1556 | mask = ~dirty_flags; |
1557 | p = phys_ram_dirty + (start >> TARGET_PAGE_BITS); | |
1558 | for(i = 0; i < len; i++) | |
1559 | p[i] &= mask; | |
1560 | ||
1ccde1cb FB |
1561 | /* we modify the TLB cache so that the dirty bit will be set again |
1562 | when accessing the range */ | |
59817ccb | 1563 | start1 = start + (unsigned long)phys_ram_base; |
9fa3e853 | 1564 | for(i = 0; i < CPU_TLB_SIZE; i++) |
59817ccb | 1565 | tlb_reset_dirty_range(&env->tlb_write[0][i], start1, length); |
9fa3e853 | 1566 | for(i = 0; i < CPU_TLB_SIZE; i++) |
59817ccb FB |
1567 | tlb_reset_dirty_range(&env->tlb_write[1][i], start1, length); |
1568 | ||
1569 | #if !defined(CONFIG_SOFTMMU) | |
1570 | /* XXX: this is expensive */ | |
1571 | { | |
1572 | VirtPageDesc *p; | |
1573 | int j; | |
1574 | target_ulong addr; | |
1575 | ||
1576 | for(i = 0; i < L1_SIZE; i++) { | |
1577 | p = l1_virt_map[i]; | |
1578 | if (p) { | |
1579 | addr = i << (TARGET_PAGE_BITS + L2_BITS); | |
1580 | for(j = 0; j < L2_SIZE; j++) { | |
1581 | if (p->valid_tag == virt_valid_tag && | |
1582 | p->phys_addr >= start && p->phys_addr < end && | |
1583 | (p->prot & PROT_WRITE)) { | |
1584 | if (addr < MMAP_AREA_END) { | |
1585 | mprotect((void *)addr, TARGET_PAGE_SIZE, | |
1586 | p->prot & ~PROT_WRITE); | |
1587 | } | |
1588 | } | |
1589 | addr += TARGET_PAGE_SIZE; | |
1590 | p++; | |
1591 | } | |
1592 | } | |
1593 | } | |
1594 | } | |
1595 | #endif | |
1ccde1cb FB |
1596 | } |
1597 | ||
3a7d929e FB |
1598 | static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry) |
1599 | { | |
1600 | ram_addr_t ram_addr; | |
1601 | ||
1602 | if ((tlb_entry->address & ~TARGET_PAGE_MASK) == IO_MEM_RAM) { | |
1603 | ram_addr = (tlb_entry->address & TARGET_PAGE_MASK) + | |
1604 | tlb_entry->addend - (unsigned long)phys_ram_base; | |
1605 | if (!cpu_physical_memory_is_dirty(ram_addr)) { | |
1606 | tlb_entry->address |= IO_MEM_NOTDIRTY; | |
1607 | } | |
1608 | } | |
1609 | } | |
1610 | ||
1611 | /* update the TLB according to the current state of the dirty bits */ | |
1612 | void cpu_tlb_update_dirty(CPUState *env) | |
1613 | { | |
1614 | int i; | |
1615 | for(i = 0; i < CPU_TLB_SIZE; i++) | |
1616 | tlb_update_dirty(&env->tlb_write[0][i]); | |
1617 | for(i = 0; i < CPU_TLB_SIZE; i++) | |
1618 | tlb_update_dirty(&env->tlb_write[1][i]); | |
1619 | } | |
1620 | ||
1ccde1cb | 1621 | static inline void tlb_set_dirty1(CPUTLBEntry *tlb_entry, |
108c49b8 | 1622 | unsigned long start) |
1ccde1cb FB |
1623 | { |
1624 | unsigned long addr; | |
1625 | if ((tlb_entry->address & ~TARGET_PAGE_MASK) == IO_MEM_NOTDIRTY) { | |
1626 | addr = (tlb_entry->address & TARGET_PAGE_MASK) + tlb_entry->addend; | |
1627 | if (addr == start) { | |
1628 | tlb_entry->address = (tlb_entry->address & TARGET_PAGE_MASK) | IO_MEM_RAM; | |
1629 | } | |
1630 | } | |
1631 | } | |
1632 | ||
1633 | /* update the TLB corresponding to virtual page vaddr and phys addr | |
1634 | addr so that it is no longer dirty */ | |
1635 | static inline void tlb_set_dirty(unsigned long addr, target_ulong vaddr) | |
1636 | { | |
1637 | CPUState *env = cpu_single_env; | |
1638 | int i; | |
1639 | ||
1ccde1cb FB |
1640 | addr &= TARGET_PAGE_MASK; |
1641 | i = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); | |
1642 | tlb_set_dirty1(&env->tlb_write[0][i], addr); | |
1643 | tlb_set_dirty1(&env->tlb_write[1][i], addr); | |
9fa3e853 FB |
1644 | } |
1645 | ||
59817ccb FB |
1646 | /* add a new TLB entry. At most one entry for a given virtual address |
1647 | is permitted. Return 0 if OK or 2 if the page could not be mapped | |
1648 | (can only happen in non SOFTMMU mode for I/O pages or pages | |
1649 | conflicting with the host address space). */ | |
2e12669a FB |
1650 | int tlb_set_page(CPUState *env, target_ulong vaddr, |
1651 | target_phys_addr_t paddr, int prot, | |
9fa3e853 FB |
1652 | int is_user, int is_softmmu) |
1653 | { | |
92e873b9 | 1654 | PhysPageDesc *p; |
4f2ac237 | 1655 | unsigned long pd; |
9fa3e853 | 1656 | unsigned int index; |
4f2ac237 | 1657 | target_ulong address; |
108c49b8 | 1658 | target_phys_addr_t addend; |
9fa3e853 FB |
1659 | int ret; |
1660 | ||
92e873b9 | 1661 | p = phys_page_find(paddr >> TARGET_PAGE_BITS); |
9fa3e853 FB |
1662 | if (!p) { |
1663 | pd = IO_MEM_UNASSIGNED; | |
9fa3e853 FB |
1664 | } else { |
1665 | pd = p->phys_offset; | |
9fa3e853 FB |
1666 | } |
1667 | #if defined(DEBUG_TLB) | |
3a7d929e FB |
1668 | printf("tlb_set_page: vaddr=" TARGET_FMT_lx " paddr=0x%08x prot=%x u=%d smmu=%d pd=0x%08lx\n", |
1669 | vaddr, paddr, prot, is_user, is_softmmu, pd); | |
9fa3e853 FB |
1670 | #endif |
1671 | ||
1672 | ret = 0; | |
1673 | #if !defined(CONFIG_SOFTMMU) | |
1674 | if (is_softmmu) | |
1675 | #endif | |
1676 | { | |
1677 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM) { | |
1678 | /* IO memory case */ | |
1679 | address = vaddr | pd; | |
1680 | addend = paddr; | |
1681 | } else { | |
1682 | /* standard memory */ | |
1683 | address = vaddr; | |
1684 | addend = (unsigned long)phys_ram_base + (pd & TARGET_PAGE_MASK); | |
1685 | } | |
1686 | ||
90f18422 | 1687 | index = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); |
9fa3e853 | 1688 | addend -= vaddr; |
67b915a5 | 1689 | if (prot & PAGE_READ) { |
9fa3e853 FB |
1690 | env->tlb_read[is_user][index].address = address; |
1691 | env->tlb_read[is_user][index].addend = addend; | |
1692 | } else { | |
1693 | env->tlb_read[is_user][index].address = -1; | |
1694 | env->tlb_read[is_user][index].addend = -1; | |
1695 | } | |
67b915a5 | 1696 | if (prot & PAGE_WRITE) { |
9fa3e853 FB |
1697 | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_ROM) { |
1698 | /* ROM: access is ignored (same as unassigned) */ | |
1699 | env->tlb_write[is_user][index].address = vaddr | IO_MEM_ROM; | |
1ccde1cb | 1700 | env->tlb_write[is_user][index].addend = addend; |
3a7d929e | 1701 | } else if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM && |
1ccde1cb FB |
1702 | !cpu_physical_memory_is_dirty(pd)) { |
1703 | env->tlb_write[is_user][index].address = vaddr | IO_MEM_NOTDIRTY; | |
1704 | env->tlb_write[is_user][index].addend = addend; | |
9fa3e853 FB |
1705 | } else { |
1706 | env->tlb_write[is_user][index].address = address; | |
1707 | env->tlb_write[is_user][index].addend = addend; | |
1708 | } | |
1709 | } else { | |
1710 | env->tlb_write[is_user][index].address = -1; | |
1711 | env->tlb_write[is_user][index].addend = -1; | |
1712 | } | |
1713 | } | |
1714 | #if !defined(CONFIG_SOFTMMU) | |
1715 | else { | |
1716 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM) { | |
1717 | /* IO access: no mapping is done as it will be handled by the | |
1718 | soft MMU */ | |
1719 | if (!(env->hflags & HF_SOFTMMU_MASK)) | |
1720 | ret = 2; | |
1721 | } else { | |
1722 | void *map_addr; | |
59817ccb FB |
1723 | |
1724 | if (vaddr >= MMAP_AREA_END) { | |
1725 | ret = 2; | |
1726 | } else { | |
1727 | if (prot & PROT_WRITE) { | |
1728 | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_ROM || | |
d720b93d | 1729 | #if defined(TARGET_HAS_SMC) || 1 |
59817ccb | 1730 | first_tb || |
d720b93d | 1731 | #endif |
59817ccb FB |
1732 | ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM && |
1733 | !cpu_physical_memory_is_dirty(pd))) { | |
1734 | /* ROM: we do as if code was inside */ | |
1735 | /* if code is present, we only map as read only and save the | |
1736 | original mapping */ | |
1737 | VirtPageDesc *vp; | |
1738 | ||
90f18422 | 1739 | vp = virt_page_find_alloc(vaddr >> TARGET_PAGE_BITS, 1); |
59817ccb FB |
1740 | vp->phys_addr = pd; |
1741 | vp->prot = prot; | |
1742 | vp->valid_tag = virt_valid_tag; | |
1743 | prot &= ~PAGE_WRITE; | |
1744 | } | |
1745 | } | |
1746 | map_addr = mmap((void *)vaddr, TARGET_PAGE_SIZE, prot, | |
1747 | MAP_SHARED | MAP_FIXED, phys_ram_fd, (pd & TARGET_PAGE_MASK)); | |
1748 | if (map_addr == MAP_FAILED) { | |
1749 | cpu_abort(env, "mmap failed when mapped physical address 0x%08x to virtual address 0x%08x\n", | |
1750 | paddr, vaddr); | |
9fa3e853 | 1751 | } |
9fa3e853 FB |
1752 | } |
1753 | } | |
1754 | } | |
1755 | #endif | |
1756 | return ret; | |
1757 | } | |
1758 | ||
1759 | /* called from signal handler: invalidate the code and unprotect the | |
1760 | page. Return TRUE if the fault was succesfully handled. */ | |
d720b93d | 1761 | int page_unprotect(unsigned long addr, unsigned long pc, void *puc) |
9fa3e853 FB |
1762 | { |
1763 | #if !defined(CONFIG_SOFTMMU) | |
1764 | VirtPageDesc *vp; | |
1765 | ||
1766 | #if defined(DEBUG_TLB) | |
1767 | printf("page_unprotect: addr=0x%08x\n", addr); | |
1768 | #endif | |
1769 | addr &= TARGET_PAGE_MASK; | |
59817ccb FB |
1770 | |
1771 | /* if it is not mapped, no need to worry here */ | |
1772 | if (addr >= MMAP_AREA_END) | |
1773 | return 0; | |
9fa3e853 FB |
1774 | vp = virt_page_find(addr >> TARGET_PAGE_BITS); |
1775 | if (!vp) | |
1776 | return 0; | |
1777 | /* NOTE: in this case, validate_tag is _not_ tested as it | |
1778 | validates only the code TLB */ | |
1779 | if (vp->valid_tag != virt_valid_tag) | |
1780 | return 0; | |
1781 | if (!(vp->prot & PAGE_WRITE)) | |
1782 | return 0; | |
1783 | #if defined(DEBUG_TLB) | |
1784 | printf("page_unprotect: addr=0x%08x phys_addr=0x%08x prot=%x\n", | |
1785 | addr, vp->phys_addr, vp->prot); | |
1786 | #endif | |
59817ccb FB |
1787 | if (mprotect((void *)addr, TARGET_PAGE_SIZE, vp->prot) < 0) |
1788 | cpu_abort(cpu_single_env, "error mprotect addr=0x%lx prot=%d\n", | |
1789 | (unsigned long)addr, vp->prot); | |
d720b93d | 1790 | /* set the dirty bit */ |
0a962c02 | 1791 | phys_ram_dirty[vp->phys_addr >> TARGET_PAGE_BITS] = 0xff; |
d720b93d FB |
1792 | /* flush the code inside */ |
1793 | tb_invalidate_phys_page(vp->phys_addr, pc, puc); | |
9fa3e853 FB |
1794 | return 1; |
1795 | #else | |
1796 | return 0; | |
1797 | #endif | |
33417e70 FB |
1798 | } |
1799 | ||
0124311e FB |
1800 | #else |
1801 | ||
ee8b7021 | 1802 | void tlb_flush(CPUState *env, int flush_global) |
0124311e FB |
1803 | { |
1804 | } | |
1805 | ||
2e12669a | 1806 | void tlb_flush_page(CPUState *env, target_ulong addr) |
0124311e FB |
1807 | { |
1808 | } | |
1809 | ||
2e12669a FB |
1810 | int tlb_set_page(CPUState *env, target_ulong vaddr, |
1811 | target_phys_addr_t paddr, int prot, | |
9fa3e853 FB |
1812 | int is_user, int is_softmmu) |
1813 | { | |
1814 | return 0; | |
1815 | } | |
0124311e | 1816 | |
9fa3e853 FB |
1817 | /* dump memory mappings */ |
1818 | void page_dump(FILE *f) | |
33417e70 | 1819 | { |
9fa3e853 FB |
1820 | unsigned long start, end; |
1821 | int i, j, prot, prot1; | |
1822 | PageDesc *p; | |
33417e70 | 1823 | |
9fa3e853 FB |
1824 | fprintf(f, "%-8s %-8s %-8s %s\n", |
1825 | "start", "end", "size", "prot"); | |
1826 | start = -1; | |
1827 | end = -1; | |
1828 | prot = 0; | |
1829 | for(i = 0; i <= L1_SIZE; i++) { | |
1830 | if (i < L1_SIZE) | |
1831 | p = l1_map[i]; | |
1832 | else | |
1833 | p = NULL; | |
1834 | for(j = 0;j < L2_SIZE; j++) { | |
1835 | if (!p) | |
1836 | prot1 = 0; | |
1837 | else | |
1838 | prot1 = p[j].flags; | |
1839 | if (prot1 != prot) { | |
1840 | end = (i << (32 - L1_BITS)) | (j << TARGET_PAGE_BITS); | |
1841 | if (start != -1) { | |
1842 | fprintf(f, "%08lx-%08lx %08lx %c%c%c\n", | |
1843 | start, end, end - start, | |
1844 | prot & PAGE_READ ? 'r' : '-', | |
1845 | prot & PAGE_WRITE ? 'w' : '-', | |
1846 | prot & PAGE_EXEC ? 'x' : '-'); | |
1847 | } | |
1848 | if (prot1 != 0) | |
1849 | start = end; | |
1850 | else | |
1851 | start = -1; | |
1852 | prot = prot1; | |
1853 | } | |
1854 | if (!p) | |
1855 | break; | |
1856 | } | |
33417e70 | 1857 | } |
33417e70 FB |
1858 | } |
1859 | ||
9fa3e853 | 1860 | int page_get_flags(unsigned long address) |
33417e70 | 1861 | { |
9fa3e853 FB |
1862 | PageDesc *p; |
1863 | ||
1864 | p = page_find(address >> TARGET_PAGE_BITS); | |
33417e70 | 1865 | if (!p) |
9fa3e853 FB |
1866 | return 0; |
1867 | return p->flags; | |
1868 | } | |
1869 | ||
1870 | /* modify the flags of a page and invalidate the code if | |
1871 | necessary. The flag PAGE_WRITE_ORG is positionned automatically | |
1872 | depending on PAGE_WRITE */ | |
1873 | void page_set_flags(unsigned long start, unsigned long end, int flags) | |
1874 | { | |
1875 | PageDesc *p; | |
1876 | unsigned long addr; | |
1877 | ||
1878 | start = start & TARGET_PAGE_MASK; | |
1879 | end = TARGET_PAGE_ALIGN(end); | |
1880 | if (flags & PAGE_WRITE) | |
1881 | flags |= PAGE_WRITE_ORG; | |
1882 | spin_lock(&tb_lock); | |
1883 | for(addr = start; addr < end; addr += TARGET_PAGE_SIZE) { | |
1884 | p = page_find_alloc(addr >> TARGET_PAGE_BITS); | |
1885 | /* if the write protection is set, then we invalidate the code | |
1886 | inside */ | |
1887 | if (!(p->flags & PAGE_WRITE) && | |
1888 | (flags & PAGE_WRITE) && | |
1889 | p->first_tb) { | |
d720b93d | 1890 | tb_invalidate_phys_page(addr, 0, NULL); |
9fa3e853 FB |
1891 | } |
1892 | p->flags = flags; | |
1893 | } | |
1894 | spin_unlock(&tb_lock); | |
33417e70 FB |
1895 | } |
1896 | ||
9fa3e853 FB |
1897 | /* called from signal handler: invalidate the code and unprotect the |
1898 | page. Return TRUE if the fault was succesfully handled. */ | |
d720b93d | 1899 | int page_unprotect(unsigned long address, unsigned long pc, void *puc) |
9fa3e853 FB |
1900 | { |
1901 | unsigned int page_index, prot, pindex; | |
1902 | PageDesc *p, *p1; | |
1903 | unsigned long host_start, host_end, addr; | |
1904 | ||
83fb7adf | 1905 | host_start = address & qemu_host_page_mask; |
9fa3e853 FB |
1906 | page_index = host_start >> TARGET_PAGE_BITS; |
1907 | p1 = page_find(page_index); | |
1908 | if (!p1) | |
1909 | return 0; | |
83fb7adf | 1910 | host_end = host_start + qemu_host_page_size; |
9fa3e853 FB |
1911 | p = p1; |
1912 | prot = 0; | |
1913 | for(addr = host_start;addr < host_end; addr += TARGET_PAGE_SIZE) { | |
1914 | prot |= p->flags; | |
1915 | p++; | |
1916 | } | |
1917 | /* if the page was really writable, then we change its | |
1918 | protection back to writable */ | |
1919 | if (prot & PAGE_WRITE_ORG) { | |
1920 | pindex = (address - host_start) >> TARGET_PAGE_BITS; | |
1921 | if (!(p1[pindex].flags & PAGE_WRITE)) { | |
83fb7adf | 1922 | mprotect((void *)host_start, qemu_host_page_size, |
9fa3e853 FB |
1923 | (prot & PAGE_BITS) | PAGE_WRITE); |
1924 | p1[pindex].flags |= PAGE_WRITE; | |
1925 | /* and since the content will be modified, we must invalidate | |
1926 | the corresponding translated code. */ | |
d720b93d | 1927 | tb_invalidate_phys_page(address, pc, puc); |
9fa3e853 FB |
1928 | #ifdef DEBUG_TB_CHECK |
1929 | tb_invalidate_check(address); | |
1930 | #endif | |
1931 | return 1; | |
1932 | } | |
1933 | } | |
1934 | return 0; | |
1935 | } | |
1936 | ||
1937 | /* call this function when system calls directly modify a memory area */ | |
1938 | void page_unprotect_range(uint8_t *data, unsigned long data_size) | |
1939 | { | |
1940 | unsigned long start, end, addr; | |
1941 | ||
1942 | start = (unsigned long)data; | |
1943 | end = start + data_size; | |
1944 | start &= TARGET_PAGE_MASK; | |
1945 | end = TARGET_PAGE_ALIGN(end); | |
1946 | for(addr = start; addr < end; addr += TARGET_PAGE_SIZE) { | |
d720b93d | 1947 | page_unprotect(addr, 0, NULL); |
9fa3e853 FB |
1948 | } |
1949 | } | |
1950 | ||
1ccde1cb FB |
1951 | static inline void tlb_set_dirty(unsigned long addr, target_ulong vaddr) |
1952 | { | |
1953 | } | |
9fa3e853 FB |
1954 | #endif /* defined(CONFIG_USER_ONLY) */ |
1955 | ||
33417e70 FB |
1956 | /* register physical memory. 'size' must be a multiple of the target |
1957 | page size. If (phys_offset & ~TARGET_PAGE_MASK) != 0, then it is an | |
1958 | io memory page */ | |
2e12669a FB |
1959 | void cpu_register_physical_memory(target_phys_addr_t start_addr, |
1960 | unsigned long size, | |
1961 | unsigned long phys_offset) | |
33417e70 | 1962 | { |
108c49b8 | 1963 | target_phys_addr_t addr, end_addr; |
92e873b9 | 1964 | PhysPageDesc *p; |
33417e70 | 1965 | |
5fd386f6 | 1966 | size = (size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK; |
33417e70 | 1967 | end_addr = start_addr + size; |
5fd386f6 | 1968 | for(addr = start_addr; addr != end_addr; addr += TARGET_PAGE_SIZE) { |
108c49b8 | 1969 | p = phys_page_find_alloc(addr >> TARGET_PAGE_BITS, 1); |
9fa3e853 FB |
1970 | p->phys_offset = phys_offset; |
1971 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM) | |
33417e70 FB |
1972 | phys_offset += TARGET_PAGE_SIZE; |
1973 | } | |
1974 | } | |
1975 | ||
a4193c8a | 1976 | static uint32_t unassigned_mem_readb(void *opaque, target_phys_addr_t addr) |
33417e70 FB |
1977 | { |
1978 | return 0; | |
1979 | } | |
1980 | ||
a4193c8a | 1981 | static void unassigned_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
33417e70 FB |
1982 | { |
1983 | } | |
1984 | ||
1985 | static CPUReadMemoryFunc *unassigned_mem_read[3] = { | |
1986 | unassigned_mem_readb, | |
1987 | unassigned_mem_readb, | |
1988 | unassigned_mem_readb, | |
1989 | }; | |
1990 | ||
1991 | static CPUWriteMemoryFunc *unassigned_mem_write[3] = { | |
1992 | unassigned_mem_writeb, | |
1993 | unassigned_mem_writeb, | |
1994 | unassigned_mem_writeb, | |
1995 | }; | |
1996 | ||
3a7d929e | 1997 | static void notdirty_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
9fa3e853 | 1998 | { |
3a7d929e FB |
1999 | unsigned long ram_addr; |
2000 | int dirty_flags; | |
2001 | ram_addr = addr - (unsigned long)phys_ram_base; | |
2002 | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; | |
2003 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { | |
9fa3e853 | 2004 | #if !defined(CONFIG_USER_ONLY) |
3a7d929e FB |
2005 | tb_invalidate_phys_page_fast(ram_addr, 1); |
2006 | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; | |
9fa3e853 | 2007 | #endif |
3a7d929e | 2008 | } |
c27004ec | 2009 | stb_p((uint8_t *)(long)addr, val); |
f23db169 FB |
2010 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
2011 | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] = dirty_flags; | |
2012 | /* we remove the notdirty callback only if the code has been | |
2013 | flushed */ | |
2014 | if (dirty_flags == 0xff) | |
3a7d929e | 2015 | tlb_set_dirty(addr, cpu_single_env->mem_write_vaddr); |
9fa3e853 FB |
2016 | } |
2017 | ||
3a7d929e | 2018 | static void notdirty_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val) |
9fa3e853 | 2019 | { |
3a7d929e FB |
2020 | unsigned long ram_addr; |
2021 | int dirty_flags; | |
2022 | ram_addr = addr - (unsigned long)phys_ram_base; | |
2023 | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; | |
2024 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { | |
9fa3e853 | 2025 | #if !defined(CONFIG_USER_ONLY) |
3a7d929e FB |
2026 | tb_invalidate_phys_page_fast(ram_addr, 2); |
2027 | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; | |
9fa3e853 | 2028 | #endif |
3a7d929e | 2029 | } |
c27004ec | 2030 | stw_p((uint8_t *)(long)addr, val); |
f23db169 FB |
2031 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
2032 | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] = dirty_flags; | |
2033 | /* we remove the notdirty callback only if the code has been | |
2034 | flushed */ | |
2035 | if (dirty_flags == 0xff) | |
3a7d929e | 2036 | tlb_set_dirty(addr, cpu_single_env->mem_write_vaddr); |
9fa3e853 FB |
2037 | } |
2038 | ||
3a7d929e | 2039 | static void notdirty_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val) |
9fa3e853 | 2040 | { |
3a7d929e FB |
2041 | unsigned long ram_addr; |
2042 | int dirty_flags; | |
2043 | ram_addr = addr - (unsigned long)phys_ram_base; | |
2044 | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; | |
2045 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { | |
9fa3e853 | 2046 | #if !defined(CONFIG_USER_ONLY) |
3a7d929e FB |
2047 | tb_invalidate_phys_page_fast(ram_addr, 4); |
2048 | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; | |
9fa3e853 | 2049 | #endif |
3a7d929e | 2050 | } |
c27004ec | 2051 | stl_p((uint8_t *)(long)addr, val); |
f23db169 FB |
2052 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
2053 | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] = dirty_flags; | |
2054 | /* we remove the notdirty callback only if the code has been | |
2055 | flushed */ | |
2056 | if (dirty_flags == 0xff) | |
3a7d929e | 2057 | tlb_set_dirty(addr, cpu_single_env->mem_write_vaddr); |
9fa3e853 FB |
2058 | } |
2059 | ||
3a7d929e | 2060 | static CPUReadMemoryFunc *error_mem_read[3] = { |
9fa3e853 FB |
2061 | NULL, /* never used */ |
2062 | NULL, /* never used */ | |
2063 | NULL, /* never used */ | |
2064 | }; | |
2065 | ||
1ccde1cb FB |
2066 | static CPUWriteMemoryFunc *notdirty_mem_write[3] = { |
2067 | notdirty_mem_writeb, | |
2068 | notdirty_mem_writew, | |
2069 | notdirty_mem_writel, | |
2070 | }; | |
2071 | ||
33417e70 FB |
2072 | static void io_mem_init(void) |
2073 | { | |
3a7d929e | 2074 | cpu_register_io_memory(IO_MEM_ROM >> IO_MEM_SHIFT, error_mem_read, unassigned_mem_write, NULL); |
a4193c8a | 2075 | cpu_register_io_memory(IO_MEM_UNASSIGNED >> IO_MEM_SHIFT, unassigned_mem_read, unassigned_mem_write, NULL); |
3a7d929e | 2076 | cpu_register_io_memory(IO_MEM_NOTDIRTY >> IO_MEM_SHIFT, error_mem_read, notdirty_mem_write, NULL); |
1ccde1cb FB |
2077 | io_mem_nb = 5; |
2078 | ||
2079 | /* alloc dirty bits array */ | |
0a962c02 | 2080 | phys_ram_dirty = qemu_vmalloc(phys_ram_size >> TARGET_PAGE_BITS); |
3a7d929e | 2081 | memset(phys_ram_dirty, 0xff, phys_ram_size >> TARGET_PAGE_BITS); |
33417e70 FB |
2082 | } |
2083 | ||
2084 | /* mem_read and mem_write are arrays of functions containing the | |
2085 | function to access byte (index 0), word (index 1) and dword (index | |
2086 | 2). All functions must be supplied. If io_index is non zero, the | |
2087 | corresponding io zone is modified. If it is zero, a new io zone is | |
2088 | allocated. The return value can be used with | |
2089 | cpu_register_physical_memory(). (-1) is returned if error. */ | |
2090 | int cpu_register_io_memory(int io_index, | |
2091 | CPUReadMemoryFunc **mem_read, | |
a4193c8a FB |
2092 | CPUWriteMemoryFunc **mem_write, |
2093 | void *opaque) | |
33417e70 FB |
2094 | { |
2095 | int i; | |
2096 | ||
2097 | if (io_index <= 0) { | |
2098 | if (io_index >= IO_MEM_NB_ENTRIES) | |
2099 | return -1; | |
2100 | io_index = io_mem_nb++; | |
2101 | } else { | |
2102 | if (io_index >= IO_MEM_NB_ENTRIES) | |
2103 | return -1; | |
2104 | } | |
2105 | ||
2106 | for(i = 0;i < 3; i++) { | |
2107 | io_mem_read[io_index][i] = mem_read[i]; | |
2108 | io_mem_write[io_index][i] = mem_write[i]; | |
2109 | } | |
a4193c8a | 2110 | io_mem_opaque[io_index] = opaque; |
33417e70 FB |
2111 | return io_index << IO_MEM_SHIFT; |
2112 | } | |
61382a50 | 2113 | |
8926b517 FB |
2114 | CPUWriteMemoryFunc **cpu_get_io_memory_write(int io_index) |
2115 | { | |
2116 | return io_mem_write[io_index >> IO_MEM_SHIFT]; | |
2117 | } | |
2118 | ||
2119 | CPUReadMemoryFunc **cpu_get_io_memory_read(int io_index) | |
2120 | { | |
2121 | return io_mem_read[io_index >> IO_MEM_SHIFT]; | |
2122 | } | |
2123 | ||
13eb76e0 FB |
2124 | /* physical memory access (slow version, mainly for debug) */ |
2125 | #if defined(CONFIG_USER_ONLY) | |
2e12669a | 2126 | void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf, |
13eb76e0 FB |
2127 | int len, int is_write) |
2128 | { | |
2129 | int l, flags; | |
2130 | target_ulong page; | |
2131 | ||
2132 | while (len > 0) { | |
2133 | page = addr & TARGET_PAGE_MASK; | |
2134 | l = (page + TARGET_PAGE_SIZE) - addr; | |
2135 | if (l > len) | |
2136 | l = len; | |
2137 | flags = page_get_flags(page); | |
2138 | if (!(flags & PAGE_VALID)) | |
2139 | return; | |
2140 | if (is_write) { | |
2141 | if (!(flags & PAGE_WRITE)) | |
2142 | return; | |
2143 | memcpy((uint8_t *)addr, buf, len); | |
2144 | } else { | |
2145 | if (!(flags & PAGE_READ)) | |
2146 | return; | |
2147 | memcpy(buf, (uint8_t *)addr, len); | |
2148 | } | |
2149 | len -= l; | |
2150 | buf += l; | |
2151 | addr += l; | |
2152 | } | |
2153 | } | |
8df1cd07 FB |
2154 | |
2155 | /* never used */ | |
2156 | uint32_t ldl_phys(target_phys_addr_t addr) | |
2157 | { | |
2158 | return 0; | |
2159 | } | |
2160 | ||
2161 | void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val) | |
2162 | { | |
2163 | } | |
2164 | ||
2165 | void stl_phys(target_phys_addr_t addr, uint32_t val) | |
2166 | { | |
2167 | } | |
2168 | ||
13eb76e0 | 2169 | #else |
2e12669a | 2170 | void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf, |
13eb76e0 FB |
2171 | int len, int is_write) |
2172 | { | |
2173 | int l, io_index; | |
2174 | uint8_t *ptr; | |
2175 | uint32_t val; | |
2e12669a FB |
2176 | target_phys_addr_t page; |
2177 | unsigned long pd; | |
92e873b9 | 2178 | PhysPageDesc *p; |
13eb76e0 FB |
2179 | |
2180 | while (len > 0) { | |
2181 | page = addr & TARGET_PAGE_MASK; | |
2182 | l = (page + TARGET_PAGE_SIZE) - addr; | |
2183 | if (l > len) | |
2184 | l = len; | |
92e873b9 | 2185 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
13eb76e0 FB |
2186 | if (!p) { |
2187 | pd = IO_MEM_UNASSIGNED; | |
2188 | } else { | |
2189 | pd = p->phys_offset; | |
2190 | } | |
2191 | ||
2192 | if (is_write) { | |
3a7d929e | 2193 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
13eb76e0 FB |
2194 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
2195 | if (l >= 4 && ((addr & 3) == 0)) { | |
1c213d19 | 2196 | /* 32 bit write access */ |
c27004ec | 2197 | val = ldl_p(buf); |
a4193c8a | 2198 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); |
13eb76e0 FB |
2199 | l = 4; |
2200 | } else if (l >= 2 && ((addr & 1) == 0)) { | |
1c213d19 | 2201 | /* 16 bit write access */ |
c27004ec | 2202 | val = lduw_p(buf); |
a4193c8a | 2203 | io_mem_write[io_index][1](io_mem_opaque[io_index], addr, val); |
13eb76e0 FB |
2204 | l = 2; |
2205 | } else { | |
1c213d19 | 2206 | /* 8 bit write access */ |
c27004ec | 2207 | val = ldub_p(buf); |
a4193c8a | 2208 | io_mem_write[io_index][0](io_mem_opaque[io_index], addr, val); |
13eb76e0 FB |
2209 | l = 1; |
2210 | } | |
2211 | } else { | |
b448f2f3 FB |
2212 | unsigned long addr1; |
2213 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); | |
13eb76e0 | 2214 | /* RAM case */ |
b448f2f3 | 2215 | ptr = phys_ram_base + addr1; |
13eb76e0 | 2216 | memcpy(ptr, buf, l); |
3a7d929e FB |
2217 | if (!cpu_physical_memory_is_dirty(addr1)) { |
2218 | /* invalidate code */ | |
2219 | tb_invalidate_phys_page_range(addr1, addr1 + l, 0); | |
2220 | /* set dirty bit */ | |
f23db169 FB |
2221 | phys_ram_dirty[addr1 >> TARGET_PAGE_BITS] |= |
2222 | (0xff & ~CODE_DIRTY_FLAG); | |
3a7d929e | 2223 | } |
13eb76e0 FB |
2224 | } |
2225 | } else { | |
3a7d929e | 2226 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM) { |
13eb76e0 FB |
2227 | /* I/O case */ |
2228 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); | |
2229 | if (l >= 4 && ((addr & 3) == 0)) { | |
2230 | /* 32 bit read access */ | |
a4193c8a | 2231 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr); |
c27004ec | 2232 | stl_p(buf, val); |
13eb76e0 FB |
2233 | l = 4; |
2234 | } else if (l >= 2 && ((addr & 1) == 0)) { | |
2235 | /* 16 bit read access */ | |
a4193c8a | 2236 | val = io_mem_read[io_index][1](io_mem_opaque[io_index], addr); |
c27004ec | 2237 | stw_p(buf, val); |
13eb76e0 FB |
2238 | l = 2; |
2239 | } else { | |
1c213d19 | 2240 | /* 8 bit read access */ |
a4193c8a | 2241 | val = io_mem_read[io_index][0](io_mem_opaque[io_index], addr); |
c27004ec | 2242 | stb_p(buf, val); |
13eb76e0 FB |
2243 | l = 1; |
2244 | } | |
2245 | } else { | |
2246 | /* RAM case */ | |
2247 | ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) + | |
2248 | (addr & ~TARGET_PAGE_MASK); | |
2249 | memcpy(buf, ptr, l); | |
2250 | } | |
2251 | } | |
2252 | len -= l; | |
2253 | buf += l; | |
2254 | addr += l; | |
2255 | } | |
2256 | } | |
8df1cd07 FB |
2257 | |
2258 | /* warning: addr must be aligned */ | |
2259 | uint32_t ldl_phys(target_phys_addr_t addr) | |
2260 | { | |
2261 | int io_index; | |
2262 | uint8_t *ptr; | |
2263 | uint32_t val; | |
2264 | unsigned long pd; | |
2265 | PhysPageDesc *p; | |
2266 | ||
2267 | p = phys_page_find(addr >> TARGET_PAGE_BITS); | |
2268 | if (!p) { | |
2269 | pd = IO_MEM_UNASSIGNED; | |
2270 | } else { | |
2271 | pd = p->phys_offset; | |
2272 | } | |
2273 | ||
3a7d929e | 2274 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM) { |
8df1cd07 FB |
2275 | /* I/O case */ |
2276 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); | |
2277 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr); | |
2278 | } else { | |
2279 | /* RAM case */ | |
2280 | ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) + | |
2281 | (addr & ~TARGET_PAGE_MASK); | |
2282 | val = ldl_p(ptr); | |
2283 | } | |
2284 | return val; | |
2285 | } | |
2286 | ||
2287 | /* warning: addr must be aligned. The ram page is not masked as dirty | |
2288 | and the code inside is not invalidated. It is useful if the dirty | |
2289 | bits are used to track modified PTEs */ | |
2290 | void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val) | |
2291 | { | |
2292 | int io_index; | |
2293 | uint8_t *ptr; | |
2294 | unsigned long pd; | |
2295 | PhysPageDesc *p; | |
2296 | ||
2297 | p = phys_page_find(addr >> TARGET_PAGE_BITS); | |
2298 | if (!p) { | |
2299 | pd = IO_MEM_UNASSIGNED; | |
2300 | } else { | |
2301 | pd = p->phys_offset; | |
2302 | } | |
2303 | ||
3a7d929e | 2304 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
8df1cd07 FB |
2305 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
2306 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); | |
2307 | } else { | |
2308 | ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) + | |
2309 | (addr & ~TARGET_PAGE_MASK); | |
2310 | stl_p(ptr, val); | |
2311 | } | |
2312 | } | |
2313 | ||
2314 | /* warning: addr must be aligned */ | |
8df1cd07 FB |
2315 | void stl_phys(target_phys_addr_t addr, uint32_t val) |
2316 | { | |
2317 | int io_index; | |
2318 | uint8_t *ptr; | |
2319 | unsigned long pd; | |
2320 | PhysPageDesc *p; | |
2321 | ||
2322 | p = phys_page_find(addr >> TARGET_PAGE_BITS); | |
2323 | if (!p) { | |
2324 | pd = IO_MEM_UNASSIGNED; | |
2325 | } else { | |
2326 | pd = p->phys_offset; | |
2327 | } | |
2328 | ||
3a7d929e | 2329 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
8df1cd07 FB |
2330 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
2331 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); | |
2332 | } else { | |
2333 | unsigned long addr1; | |
2334 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); | |
2335 | /* RAM case */ | |
2336 | ptr = phys_ram_base + addr1; | |
2337 | stl_p(ptr, val); | |
3a7d929e FB |
2338 | if (!cpu_physical_memory_is_dirty(addr1)) { |
2339 | /* invalidate code */ | |
2340 | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); | |
2341 | /* set dirty bit */ | |
f23db169 FB |
2342 | phys_ram_dirty[addr1 >> TARGET_PAGE_BITS] |= |
2343 | (0xff & ~CODE_DIRTY_FLAG); | |
3a7d929e | 2344 | } |
8df1cd07 FB |
2345 | } |
2346 | } | |
2347 | ||
13eb76e0 FB |
2348 | #endif |
2349 | ||
2350 | /* virtual memory access for debug */ | |
b448f2f3 FB |
2351 | int cpu_memory_rw_debug(CPUState *env, target_ulong addr, |
2352 | uint8_t *buf, int len, int is_write) | |
13eb76e0 FB |
2353 | { |
2354 | int l; | |
2355 | target_ulong page, phys_addr; | |
2356 | ||
2357 | while (len > 0) { | |
2358 | page = addr & TARGET_PAGE_MASK; | |
2359 | phys_addr = cpu_get_phys_page_debug(env, page); | |
2360 | /* if no physical page mapped, return an error */ | |
2361 | if (phys_addr == -1) | |
2362 | return -1; | |
2363 | l = (page + TARGET_PAGE_SIZE) - addr; | |
2364 | if (l > len) | |
2365 | l = len; | |
b448f2f3 FB |
2366 | cpu_physical_memory_rw(phys_addr + (addr & ~TARGET_PAGE_MASK), |
2367 | buf, l, is_write); | |
13eb76e0 FB |
2368 | len -= l; |
2369 | buf += l; | |
2370 | addr += l; | |
2371 | } | |
2372 | return 0; | |
2373 | } | |
2374 | ||
e3db7226 FB |
2375 | void dump_exec_info(FILE *f, |
2376 | int (*cpu_fprintf)(FILE *f, const char *fmt, ...)) | |
2377 | { | |
2378 | int i, target_code_size, max_target_code_size; | |
2379 | int direct_jmp_count, direct_jmp2_count, cross_page; | |
2380 | TranslationBlock *tb; | |
2381 | ||
2382 | target_code_size = 0; | |
2383 | max_target_code_size = 0; | |
2384 | cross_page = 0; | |
2385 | direct_jmp_count = 0; | |
2386 | direct_jmp2_count = 0; | |
2387 | for(i = 0; i < nb_tbs; i++) { | |
2388 | tb = &tbs[i]; | |
2389 | target_code_size += tb->size; | |
2390 | if (tb->size > max_target_code_size) | |
2391 | max_target_code_size = tb->size; | |
2392 | if (tb->page_addr[1] != -1) | |
2393 | cross_page++; | |
2394 | if (tb->tb_next_offset[0] != 0xffff) { | |
2395 | direct_jmp_count++; | |
2396 | if (tb->tb_next_offset[1] != 0xffff) { | |
2397 | direct_jmp2_count++; | |
2398 | } | |
2399 | } | |
2400 | } | |
2401 | /* XXX: avoid using doubles ? */ | |
2402 | cpu_fprintf(f, "TB count %d\n", nb_tbs); | |
2403 | cpu_fprintf(f, "TB avg target size %d max=%d bytes\n", | |
2404 | nb_tbs ? target_code_size / nb_tbs : 0, | |
2405 | max_target_code_size); | |
2406 | cpu_fprintf(f, "TB avg host size %d bytes (expansion ratio: %0.1f)\n", | |
2407 | nb_tbs ? (code_gen_ptr - code_gen_buffer) / nb_tbs : 0, | |
2408 | target_code_size ? (double) (code_gen_ptr - code_gen_buffer) / target_code_size : 0); | |
2409 | cpu_fprintf(f, "cross page TB count %d (%d%%)\n", | |
2410 | cross_page, | |
2411 | nb_tbs ? (cross_page * 100) / nb_tbs : 0); | |
2412 | cpu_fprintf(f, "direct jump count %d (%d%%) (2 jumps=%d %d%%)\n", | |
2413 | direct_jmp_count, | |
2414 | nb_tbs ? (direct_jmp_count * 100) / nb_tbs : 0, | |
2415 | direct_jmp2_count, | |
2416 | nb_tbs ? (direct_jmp2_count * 100) / nb_tbs : 0); | |
2417 | cpu_fprintf(f, "TB flush count %d\n", tb_flush_count); | |
2418 | cpu_fprintf(f, "TB invalidate count %d\n", tb_phys_invalidate_count); | |
2419 | cpu_fprintf(f, "TLB flush count %d\n", tlb_flush_count); | |
2420 | } | |
2421 | ||
61382a50 FB |
2422 | #if !defined(CONFIG_USER_ONLY) |
2423 | ||
2424 | #define MMUSUFFIX _cmmu | |
2425 | #define GETPC() NULL | |
2426 | #define env cpu_single_env | |
b769d8fe | 2427 | #define SOFTMMU_CODE_ACCESS |
61382a50 FB |
2428 | |
2429 | #define SHIFT 0 | |
2430 | #include "softmmu_template.h" | |
2431 | ||
2432 | #define SHIFT 1 | |
2433 | #include "softmmu_template.h" | |
2434 | ||
2435 | #define SHIFT 2 | |
2436 | #include "softmmu_template.h" | |
2437 | ||
2438 | #define SHIFT 3 | |
2439 | #include "softmmu_template.h" | |
2440 | ||
2441 | #undef env | |
2442 | ||
2443 | #endif |