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Commit | Line | Data |
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54936004 | 1 | /* |
fd6ce8f6 | 2 | * virtual page mapping and translated block handling |
5fafdf24 | 3 | * |
54936004 FB |
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 | |
8167ee88 | 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
54936004 | 18 | */ |
67b915a5 | 19 | #include "config.h" |
d5a8f07c FB |
20 | #ifdef _WIN32 |
21 | #include <windows.h> | |
22 | #else | |
a98d49b1 | 23 | #include <sys/types.h> |
d5a8f07c FB |
24 | #include <sys/mman.h> |
25 | #endif | |
54936004 | 26 | |
055403b2 | 27 | #include "qemu-common.h" |
6180a181 | 28 | #include "cpu.h" |
b67d9a52 | 29 | #include "tcg.h" |
b3c7724c | 30 | #include "hw/hw.h" |
cc9e98cb | 31 | #include "hw/qdev.h" |
74576198 | 32 | #include "osdep.h" |
7ba1e619 | 33 | #include "kvm.h" |
432d268c | 34 | #include "hw/xen.h" |
29e922b6 | 35 | #include "qemu-timer.h" |
62152b8a AK |
36 | #include "memory.h" |
37 | #include "exec-memory.h" | |
53a5960a PB |
38 | #if defined(CONFIG_USER_ONLY) |
39 | #include <qemu.h> | |
f01576f1 JL |
40 | #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) |
41 | #include <sys/param.h> | |
42 | #if __FreeBSD_version >= 700104 | |
43 | #define HAVE_KINFO_GETVMMAP | |
44 | #define sigqueue sigqueue_freebsd /* avoid redefinition */ | |
45 | #include <sys/time.h> | |
46 | #include <sys/proc.h> | |
47 | #include <machine/profile.h> | |
48 | #define _KERNEL | |
49 | #include <sys/user.h> | |
50 | #undef _KERNEL | |
51 | #undef sigqueue | |
52 | #include <libutil.h> | |
53 | #endif | |
54 | #endif | |
432d268c JN |
55 | #else /* !CONFIG_USER_ONLY */ |
56 | #include "xen-mapcache.h" | |
6506e4f9 | 57 | #include "trace.h" |
53a5960a | 58 | #endif |
54936004 | 59 | |
67d95c15 AK |
60 | #define WANT_EXEC_OBSOLETE |
61 | #include "exec-obsolete.h" | |
62 | ||
fd6ce8f6 | 63 | //#define DEBUG_TB_INVALIDATE |
66e85a21 | 64 | //#define DEBUG_FLUSH |
9fa3e853 | 65 | //#define DEBUG_TLB |
67d3b957 | 66 | //#define DEBUG_UNASSIGNED |
fd6ce8f6 FB |
67 | |
68 | /* make various TB consistency checks */ | |
5fafdf24 TS |
69 | //#define DEBUG_TB_CHECK |
70 | //#define DEBUG_TLB_CHECK | |
fd6ce8f6 | 71 | |
1196be37 | 72 | //#define DEBUG_IOPORT |
db7b5426 | 73 | //#define DEBUG_SUBPAGE |
1196be37 | 74 | |
99773bd4 PB |
75 | #if !defined(CONFIG_USER_ONLY) |
76 | /* TB consistency checks only implemented for usermode emulation. */ | |
77 | #undef DEBUG_TB_CHECK | |
78 | #endif | |
79 | ||
9fa3e853 FB |
80 | #define SMC_BITMAP_USE_THRESHOLD 10 |
81 | ||
bdaf78e0 | 82 | static TranslationBlock *tbs; |
24ab68ac | 83 | static int code_gen_max_blocks; |
9fa3e853 | 84 | TranslationBlock *tb_phys_hash[CODE_GEN_PHYS_HASH_SIZE]; |
bdaf78e0 | 85 | static int nb_tbs; |
eb51d102 | 86 | /* any access to the tbs or the page table must use this lock */ |
c227f099 | 87 | spinlock_t tb_lock = SPIN_LOCK_UNLOCKED; |
fd6ce8f6 | 88 | |
141ac468 BS |
89 | #if defined(__arm__) || defined(__sparc_v9__) |
90 | /* The prologue must be reachable with a direct jump. ARM and Sparc64 | |
91 | have limited branch ranges (possibly also PPC) so place it in a | |
d03d860b BS |
92 | section close to code segment. */ |
93 | #define code_gen_section \ | |
94 | __attribute__((__section__(".gen_code"))) \ | |
95 | __attribute__((aligned (32))) | |
f8e2af11 SW |
96 | #elif defined(_WIN32) |
97 | /* Maximum alignment for Win32 is 16. */ | |
98 | #define code_gen_section \ | |
99 | __attribute__((aligned (16))) | |
d03d860b BS |
100 | #else |
101 | #define code_gen_section \ | |
102 | __attribute__((aligned (32))) | |
103 | #endif | |
104 | ||
105 | uint8_t code_gen_prologue[1024] code_gen_section; | |
bdaf78e0 BS |
106 | static uint8_t *code_gen_buffer; |
107 | static unsigned long code_gen_buffer_size; | |
26a5f13b | 108 | /* threshold to flush the translated code buffer */ |
bdaf78e0 | 109 | static unsigned long code_gen_buffer_max_size; |
24ab68ac | 110 | static uint8_t *code_gen_ptr; |
fd6ce8f6 | 111 | |
e2eef170 | 112 | #if !defined(CONFIG_USER_ONLY) |
9fa3e853 | 113 | int phys_ram_fd; |
74576198 | 114 | static int in_migration; |
94a6b54f | 115 | |
85d59fef | 116 | RAMList ram_list = { .blocks = QLIST_HEAD_INITIALIZER(ram_list.blocks) }; |
62152b8a AK |
117 | |
118 | static MemoryRegion *system_memory; | |
309cb471 | 119 | static MemoryRegion *system_io; |
62152b8a | 120 | |
e2eef170 | 121 | #endif |
9fa3e853 | 122 | |
6a00d601 FB |
123 | CPUState *first_cpu; |
124 | /* current CPU in the current thread. It is only valid inside | |
125 | cpu_exec() */ | |
b3c4bbe5 | 126 | DEFINE_TLS(CPUState *,cpu_single_env); |
2e70f6ef | 127 | /* 0 = Do not count executed instructions. |
bf20dc07 | 128 | 1 = Precise instruction counting. |
2e70f6ef PB |
129 | 2 = Adaptive rate instruction counting. */ |
130 | int use_icount = 0; | |
6a00d601 | 131 | |
54936004 | 132 | typedef struct PageDesc { |
92e873b9 | 133 | /* list of TBs intersecting this ram page */ |
fd6ce8f6 | 134 | TranslationBlock *first_tb; |
9fa3e853 FB |
135 | /* in order to optimize self modifying code, we count the number |
136 | of lookups we do to a given page to use a bitmap */ | |
137 | unsigned int code_write_count; | |
138 | uint8_t *code_bitmap; | |
139 | #if defined(CONFIG_USER_ONLY) | |
140 | unsigned long flags; | |
141 | #endif | |
54936004 FB |
142 | } PageDesc; |
143 | ||
41c1b1c9 | 144 | /* In system mode we want L1_MAP to be based on ram offsets, |
5cd2c5b6 RH |
145 | while in user mode we want it to be based on virtual addresses. */ |
146 | #if !defined(CONFIG_USER_ONLY) | |
41c1b1c9 PB |
147 | #if HOST_LONG_BITS < TARGET_PHYS_ADDR_SPACE_BITS |
148 | # define L1_MAP_ADDR_SPACE_BITS HOST_LONG_BITS | |
149 | #else | |
5cd2c5b6 | 150 | # define L1_MAP_ADDR_SPACE_BITS TARGET_PHYS_ADDR_SPACE_BITS |
41c1b1c9 | 151 | #endif |
bedb69ea | 152 | #else |
5cd2c5b6 | 153 | # define L1_MAP_ADDR_SPACE_BITS TARGET_VIRT_ADDR_SPACE_BITS |
bedb69ea | 154 | #endif |
54936004 | 155 | |
5cd2c5b6 RH |
156 | /* Size of the L2 (and L3, etc) page tables. */ |
157 | #define L2_BITS 10 | |
54936004 FB |
158 | #define L2_SIZE (1 << L2_BITS) |
159 | ||
5cd2c5b6 RH |
160 | /* The bits remaining after N lower levels of page tables. */ |
161 | #define P_L1_BITS_REM \ | |
162 | ((TARGET_PHYS_ADDR_SPACE_BITS - TARGET_PAGE_BITS) % L2_BITS) | |
163 | #define V_L1_BITS_REM \ | |
164 | ((L1_MAP_ADDR_SPACE_BITS - TARGET_PAGE_BITS) % L2_BITS) | |
165 | ||
166 | /* Size of the L1 page table. Avoid silly small sizes. */ | |
167 | #if P_L1_BITS_REM < 4 | |
168 | #define P_L1_BITS (P_L1_BITS_REM + L2_BITS) | |
169 | #else | |
170 | #define P_L1_BITS P_L1_BITS_REM | |
171 | #endif | |
172 | ||
173 | #if V_L1_BITS_REM < 4 | |
174 | #define V_L1_BITS (V_L1_BITS_REM + L2_BITS) | |
175 | #else | |
176 | #define V_L1_BITS V_L1_BITS_REM | |
177 | #endif | |
178 | ||
179 | #define P_L1_SIZE ((target_phys_addr_t)1 << P_L1_BITS) | |
180 | #define V_L1_SIZE ((target_ulong)1 << V_L1_BITS) | |
181 | ||
182 | #define P_L1_SHIFT (TARGET_PHYS_ADDR_SPACE_BITS - TARGET_PAGE_BITS - P_L1_BITS) | |
183 | #define V_L1_SHIFT (L1_MAP_ADDR_SPACE_BITS - TARGET_PAGE_BITS - V_L1_BITS) | |
184 | ||
83fb7adf | 185 | unsigned long qemu_real_host_page_size; |
83fb7adf FB |
186 | unsigned long qemu_host_page_size; |
187 | unsigned long qemu_host_page_mask; | |
54936004 | 188 | |
5cd2c5b6 RH |
189 | /* This is a multi-level map on the virtual address space. |
190 | The bottom level has pointers to PageDesc. */ | |
191 | static void *l1_map[V_L1_SIZE]; | |
54936004 | 192 | |
e2eef170 | 193 | #if !defined(CONFIG_USER_ONLY) |
41c1b1c9 PB |
194 | typedef struct PhysPageDesc { |
195 | /* offset in host memory of the page + io_index in the low bits */ | |
196 | ram_addr_t phys_offset; | |
197 | ram_addr_t region_offset; | |
198 | } PhysPageDesc; | |
199 | ||
5cd2c5b6 RH |
200 | /* This is a multi-level map on the physical address space. |
201 | The bottom level has pointers to PhysPageDesc. */ | |
202 | static void *l1_phys_map[P_L1_SIZE]; | |
6d9a1304 | 203 | |
e2eef170 | 204 | static void io_mem_init(void); |
62152b8a | 205 | static void memory_map_init(void); |
e2eef170 | 206 | |
33417e70 | 207 | /* io memory support */ |
33417e70 FB |
208 | CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4]; |
209 | CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4]; | |
a4193c8a | 210 | void *io_mem_opaque[IO_MEM_NB_ENTRIES]; |
511d2b14 | 211 | static char io_mem_used[IO_MEM_NB_ENTRIES]; |
6658ffb8 PB |
212 | static int io_mem_watch; |
213 | #endif | |
33417e70 | 214 | |
34865134 | 215 | /* log support */ |
1e8b27ca JR |
216 | #ifdef WIN32 |
217 | static const char *logfilename = "qemu.log"; | |
218 | #else | |
d9b630fd | 219 | static const char *logfilename = "/tmp/qemu.log"; |
1e8b27ca | 220 | #endif |
34865134 FB |
221 | FILE *logfile; |
222 | int loglevel; | |
e735b91c | 223 | static int log_append = 0; |
34865134 | 224 | |
e3db7226 | 225 | /* statistics */ |
b3755a91 | 226 | #if !defined(CONFIG_USER_ONLY) |
e3db7226 | 227 | static int tlb_flush_count; |
b3755a91 | 228 | #endif |
e3db7226 FB |
229 | static int tb_flush_count; |
230 | static int tb_phys_invalidate_count; | |
231 | ||
7cb69cae FB |
232 | #ifdef _WIN32 |
233 | static void map_exec(void *addr, long size) | |
234 | { | |
235 | DWORD old_protect; | |
236 | VirtualProtect(addr, size, | |
237 | PAGE_EXECUTE_READWRITE, &old_protect); | |
238 | ||
239 | } | |
240 | #else | |
241 | static void map_exec(void *addr, long size) | |
242 | { | |
4369415f | 243 | unsigned long start, end, page_size; |
7cb69cae | 244 | |
4369415f | 245 | page_size = getpagesize(); |
7cb69cae | 246 | start = (unsigned long)addr; |
4369415f | 247 | start &= ~(page_size - 1); |
7cb69cae FB |
248 | |
249 | end = (unsigned long)addr + size; | |
4369415f FB |
250 | end += page_size - 1; |
251 | end &= ~(page_size - 1); | |
7cb69cae FB |
252 | |
253 | mprotect((void *)start, end - start, | |
254 | PROT_READ | PROT_WRITE | PROT_EXEC); | |
255 | } | |
256 | #endif | |
257 | ||
b346ff46 | 258 | static void page_init(void) |
54936004 | 259 | { |
83fb7adf | 260 | /* NOTE: we can always suppose that qemu_host_page_size >= |
54936004 | 261 | TARGET_PAGE_SIZE */ |
c2b48b69 AL |
262 | #ifdef _WIN32 |
263 | { | |
264 | SYSTEM_INFO system_info; | |
265 | ||
266 | GetSystemInfo(&system_info); | |
267 | qemu_real_host_page_size = system_info.dwPageSize; | |
268 | } | |
269 | #else | |
270 | qemu_real_host_page_size = getpagesize(); | |
271 | #endif | |
83fb7adf FB |
272 | if (qemu_host_page_size == 0) |
273 | qemu_host_page_size = qemu_real_host_page_size; | |
274 | if (qemu_host_page_size < TARGET_PAGE_SIZE) | |
275 | qemu_host_page_size = TARGET_PAGE_SIZE; | |
83fb7adf | 276 | qemu_host_page_mask = ~(qemu_host_page_size - 1); |
50a9569b | 277 | |
2e9a5713 | 278 | #if defined(CONFIG_BSD) && defined(CONFIG_USER_ONLY) |
50a9569b | 279 | { |
f01576f1 JL |
280 | #ifdef HAVE_KINFO_GETVMMAP |
281 | struct kinfo_vmentry *freep; | |
282 | int i, cnt; | |
283 | ||
284 | freep = kinfo_getvmmap(getpid(), &cnt); | |
285 | if (freep) { | |
286 | mmap_lock(); | |
287 | for (i = 0; i < cnt; i++) { | |
288 | unsigned long startaddr, endaddr; | |
289 | ||
290 | startaddr = freep[i].kve_start; | |
291 | endaddr = freep[i].kve_end; | |
292 | if (h2g_valid(startaddr)) { | |
293 | startaddr = h2g(startaddr) & TARGET_PAGE_MASK; | |
294 | ||
295 | if (h2g_valid(endaddr)) { | |
296 | endaddr = h2g(endaddr); | |
fd436907 | 297 | page_set_flags(startaddr, endaddr, PAGE_RESERVED); |
f01576f1 JL |
298 | } else { |
299 | #if TARGET_ABI_BITS <= L1_MAP_ADDR_SPACE_BITS | |
300 | endaddr = ~0ul; | |
fd436907 | 301 | page_set_flags(startaddr, endaddr, PAGE_RESERVED); |
f01576f1 JL |
302 | #endif |
303 | } | |
304 | } | |
305 | } | |
306 | free(freep); | |
307 | mmap_unlock(); | |
308 | } | |
309 | #else | |
50a9569b | 310 | FILE *f; |
50a9569b | 311 | |
0776590d | 312 | last_brk = (unsigned long)sbrk(0); |
5cd2c5b6 | 313 | |
fd436907 | 314 | f = fopen("/compat/linux/proc/self/maps", "r"); |
50a9569b | 315 | if (f) { |
5cd2c5b6 RH |
316 | mmap_lock(); |
317 | ||
50a9569b | 318 | do { |
5cd2c5b6 RH |
319 | unsigned long startaddr, endaddr; |
320 | int n; | |
321 | ||
322 | n = fscanf (f, "%lx-%lx %*[^\n]\n", &startaddr, &endaddr); | |
323 | ||
324 | if (n == 2 && h2g_valid(startaddr)) { | |
325 | startaddr = h2g(startaddr) & TARGET_PAGE_MASK; | |
326 | ||
327 | if (h2g_valid(endaddr)) { | |
328 | endaddr = h2g(endaddr); | |
329 | } else { | |
330 | endaddr = ~0ul; | |
331 | } | |
332 | page_set_flags(startaddr, endaddr, PAGE_RESERVED); | |
50a9569b AZ |
333 | } |
334 | } while (!feof(f)); | |
5cd2c5b6 | 335 | |
50a9569b | 336 | fclose(f); |
5cd2c5b6 | 337 | mmap_unlock(); |
50a9569b | 338 | } |
f01576f1 | 339 | #endif |
50a9569b AZ |
340 | } |
341 | #endif | |
54936004 FB |
342 | } |
343 | ||
41c1b1c9 | 344 | static PageDesc *page_find_alloc(tb_page_addr_t index, int alloc) |
54936004 | 345 | { |
41c1b1c9 PB |
346 | PageDesc *pd; |
347 | void **lp; | |
348 | int i; | |
349 | ||
5cd2c5b6 | 350 | #if defined(CONFIG_USER_ONLY) |
7267c094 | 351 | /* We can't use g_malloc because it may recurse into a locked mutex. */ |
5cd2c5b6 RH |
352 | # define ALLOC(P, SIZE) \ |
353 | do { \ | |
354 | P = mmap(NULL, SIZE, PROT_READ | PROT_WRITE, \ | |
355 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); \ | |
5cd2c5b6 RH |
356 | } while (0) |
357 | #else | |
358 | # define ALLOC(P, SIZE) \ | |
7267c094 | 359 | do { P = g_malloc0(SIZE); } while (0) |
17e2377a | 360 | #endif |
434929bf | 361 | |
5cd2c5b6 RH |
362 | /* Level 1. Always allocated. */ |
363 | lp = l1_map + ((index >> V_L1_SHIFT) & (V_L1_SIZE - 1)); | |
364 | ||
365 | /* Level 2..N-1. */ | |
366 | for (i = V_L1_SHIFT / L2_BITS - 1; i > 0; i--) { | |
367 | void **p = *lp; | |
368 | ||
369 | if (p == NULL) { | |
370 | if (!alloc) { | |
371 | return NULL; | |
372 | } | |
373 | ALLOC(p, sizeof(void *) * L2_SIZE); | |
374 | *lp = p; | |
17e2377a | 375 | } |
5cd2c5b6 RH |
376 | |
377 | lp = p + ((index >> (i * L2_BITS)) & (L2_SIZE - 1)); | |
378 | } | |
379 | ||
380 | pd = *lp; | |
381 | if (pd == NULL) { | |
382 | if (!alloc) { | |
383 | return NULL; | |
384 | } | |
385 | ALLOC(pd, sizeof(PageDesc) * L2_SIZE); | |
386 | *lp = pd; | |
54936004 | 387 | } |
5cd2c5b6 RH |
388 | |
389 | #undef ALLOC | |
5cd2c5b6 RH |
390 | |
391 | return pd + (index & (L2_SIZE - 1)); | |
54936004 FB |
392 | } |
393 | ||
41c1b1c9 | 394 | static inline PageDesc *page_find(tb_page_addr_t index) |
54936004 | 395 | { |
5cd2c5b6 | 396 | return page_find_alloc(index, 0); |
fd6ce8f6 FB |
397 | } |
398 | ||
6d9a1304 | 399 | #if !defined(CONFIG_USER_ONLY) |
c227f099 | 400 | static PhysPageDesc *phys_page_find_alloc(target_phys_addr_t index, int alloc) |
92e873b9 | 401 | { |
e3f4e2a4 | 402 | PhysPageDesc *pd; |
5cd2c5b6 RH |
403 | void **lp; |
404 | int i; | |
92e873b9 | 405 | |
5cd2c5b6 RH |
406 | /* Level 1. Always allocated. */ |
407 | lp = l1_phys_map + ((index >> P_L1_SHIFT) & (P_L1_SIZE - 1)); | |
108c49b8 | 408 | |
5cd2c5b6 RH |
409 | /* Level 2..N-1. */ |
410 | for (i = P_L1_SHIFT / L2_BITS - 1; i > 0; i--) { | |
411 | void **p = *lp; | |
412 | if (p == NULL) { | |
413 | if (!alloc) { | |
414 | return NULL; | |
415 | } | |
7267c094 | 416 | *lp = p = g_malloc0(sizeof(void *) * L2_SIZE); |
5cd2c5b6 RH |
417 | } |
418 | lp = p + ((index >> (i * L2_BITS)) & (L2_SIZE - 1)); | |
108c49b8 | 419 | } |
5cd2c5b6 | 420 | |
e3f4e2a4 | 421 | pd = *lp; |
5cd2c5b6 | 422 | if (pd == NULL) { |
e3f4e2a4 | 423 | int i; |
5ab97b7f | 424 | int first_index = index & ~(L2_SIZE - 1); |
5cd2c5b6 RH |
425 | |
426 | if (!alloc) { | |
108c49b8 | 427 | return NULL; |
5cd2c5b6 RH |
428 | } |
429 | ||
7267c094 | 430 | *lp = pd = g_malloc(sizeof(PhysPageDesc) * L2_SIZE); |
5cd2c5b6 | 431 | |
67c4d23c | 432 | for (i = 0; i < L2_SIZE; i++) { |
5cd2c5b6 | 433 | pd[i].phys_offset = IO_MEM_UNASSIGNED; |
5ab97b7f | 434 | pd[i].region_offset = (first_index + i) << TARGET_PAGE_BITS; |
67c4d23c | 435 | } |
92e873b9 | 436 | } |
5cd2c5b6 RH |
437 | |
438 | return pd + (index & (L2_SIZE - 1)); | |
92e873b9 FB |
439 | } |
440 | ||
c227f099 | 441 | static inline PhysPageDesc *phys_page_find(target_phys_addr_t index) |
92e873b9 | 442 | { |
108c49b8 | 443 | return phys_page_find_alloc(index, 0); |
92e873b9 FB |
444 | } |
445 | ||
c227f099 AL |
446 | static void tlb_protect_code(ram_addr_t ram_addr); |
447 | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, | |
3a7d929e | 448 | target_ulong vaddr); |
c8a706fe PB |
449 | #define mmap_lock() do { } while(0) |
450 | #define mmap_unlock() do { } while(0) | |
9fa3e853 | 451 | #endif |
fd6ce8f6 | 452 | |
4369415f FB |
453 | #define DEFAULT_CODE_GEN_BUFFER_SIZE (32 * 1024 * 1024) |
454 | ||
455 | #if defined(CONFIG_USER_ONLY) | |
ccbb4d44 | 456 | /* Currently it is not recommended to allocate big chunks of data in |
4369415f FB |
457 | user mode. It will change when a dedicated libc will be used */ |
458 | #define USE_STATIC_CODE_GEN_BUFFER | |
459 | #endif | |
460 | ||
461 | #ifdef USE_STATIC_CODE_GEN_BUFFER | |
ebf50fb3 AJ |
462 | static uint8_t static_code_gen_buffer[DEFAULT_CODE_GEN_BUFFER_SIZE] |
463 | __attribute__((aligned (CODE_GEN_ALIGN))); | |
4369415f FB |
464 | #endif |
465 | ||
8fcd3692 | 466 | static void code_gen_alloc(unsigned long tb_size) |
26a5f13b | 467 | { |
4369415f FB |
468 | #ifdef USE_STATIC_CODE_GEN_BUFFER |
469 | code_gen_buffer = static_code_gen_buffer; | |
470 | code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE; | |
471 | map_exec(code_gen_buffer, code_gen_buffer_size); | |
472 | #else | |
26a5f13b FB |
473 | code_gen_buffer_size = tb_size; |
474 | if (code_gen_buffer_size == 0) { | |
4369415f | 475 | #if defined(CONFIG_USER_ONLY) |
4369415f FB |
476 | code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE; |
477 | #else | |
ccbb4d44 | 478 | /* XXX: needs adjustments */ |
94a6b54f | 479 | code_gen_buffer_size = (unsigned long)(ram_size / 4); |
4369415f | 480 | #endif |
26a5f13b FB |
481 | } |
482 | if (code_gen_buffer_size < MIN_CODE_GEN_BUFFER_SIZE) | |
483 | code_gen_buffer_size = MIN_CODE_GEN_BUFFER_SIZE; | |
484 | /* The code gen buffer location may have constraints depending on | |
485 | the host cpu and OS */ | |
486 | #if defined(__linux__) | |
487 | { | |
488 | int flags; | |
141ac468 BS |
489 | void *start = NULL; |
490 | ||
26a5f13b FB |
491 | flags = MAP_PRIVATE | MAP_ANONYMOUS; |
492 | #if defined(__x86_64__) | |
493 | flags |= MAP_32BIT; | |
494 | /* Cannot map more than that */ | |
495 | if (code_gen_buffer_size > (800 * 1024 * 1024)) | |
496 | code_gen_buffer_size = (800 * 1024 * 1024); | |
141ac468 BS |
497 | #elif defined(__sparc_v9__) |
498 | // Map the buffer below 2G, so we can use direct calls and branches | |
499 | flags |= MAP_FIXED; | |
500 | start = (void *) 0x60000000UL; | |
501 | if (code_gen_buffer_size > (512 * 1024 * 1024)) | |
502 | code_gen_buffer_size = (512 * 1024 * 1024); | |
1cb0661e | 503 | #elif defined(__arm__) |
222f23f5 | 504 | /* Keep the buffer no bigger than 16GB to branch between blocks */ |
1cb0661e AZ |
505 | if (code_gen_buffer_size > 16 * 1024 * 1024) |
506 | code_gen_buffer_size = 16 * 1024 * 1024; | |
eba0b893 RH |
507 | #elif defined(__s390x__) |
508 | /* Map the buffer so that we can use direct calls and branches. */ | |
509 | /* We have a +- 4GB range on the branches; leave some slop. */ | |
510 | if (code_gen_buffer_size > (3ul * 1024 * 1024 * 1024)) { | |
511 | code_gen_buffer_size = 3ul * 1024 * 1024 * 1024; | |
512 | } | |
513 | start = (void *)0x90000000UL; | |
26a5f13b | 514 | #endif |
141ac468 BS |
515 | code_gen_buffer = mmap(start, code_gen_buffer_size, |
516 | PROT_WRITE | PROT_READ | PROT_EXEC, | |
26a5f13b FB |
517 | flags, -1, 0); |
518 | if (code_gen_buffer == MAP_FAILED) { | |
519 | fprintf(stderr, "Could not allocate dynamic translator buffer\n"); | |
520 | exit(1); | |
521 | } | |
522 | } | |
cbb608a5 | 523 | #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) \ |
9f4b09a4 TN |
524 | || defined(__DragonFly__) || defined(__OpenBSD__) \ |
525 | || defined(__NetBSD__) | |
06e67a82 AL |
526 | { |
527 | int flags; | |
528 | void *addr = NULL; | |
529 | flags = MAP_PRIVATE | MAP_ANONYMOUS; | |
530 | #if defined(__x86_64__) | |
531 | /* FreeBSD doesn't have MAP_32BIT, use MAP_FIXED and assume | |
532 | * 0x40000000 is free */ | |
533 | flags |= MAP_FIXED; | |
534 | addr = (void *)0x40000000; | |
535 | /* Cannot map more than that */ | |
536 | if (code_gen_buffer_size > (800 * 1024 * 1024)) | |
537 | code_gen_buffer_size = (800 * 1024 * 1024); | |
4cd31ad2 BS |
538 | #elif defined(__sparc_v9__) |
539 | // Map the buffer below 2G, so we can use direct calls and branches | |
540 | flags |= MAP_FIXED; | |
541 | addr = (void *) 0x60000000UL; | |
542 | if (code_gen_buffer_size > (512 * 1024 * 1024)) { | |
543 | code_gen_buffer_size = (512 * 1024 * 1024); | |
544 | } | |
06e67a82 AL |
545 | #endif |
546 | code_gen_buffer = mmap(addr, code_gen_buffer_size, | |
547 | PROT_WRITE | PROT_READ | PROT_EXEC, | |
548 | flags, -1, 0); | |
549 | if (code_gen_buffer == MAP_FAILED) { | |
550 | fprintf(stderr, "Could not allocate dynamic translator buffer\n"); | |
551 | exit(1); | |
552 | } | |
553 | } | |
26a5f13b | 554 | #else |
7267c094 | 555 | code_gen_buffer = g_malloc(code_gen_buffer_size); |
26a5f13b FB |
556 | map_exec(code_gen_buffer, code_gen_buffer_size); |
557 | #endif | |
4369415f | 558 | #endif /* !USE_STATIC_CODE_GEN_BUFFER */ |
26a5f13b | 559 | map_exec(code_gen_prologue, sizeof(code_gen_prologue)); |
a884da8a PM |
560 | code_gen_buffer_max_size = code_gen_buffer_size - |
561 | (TCG_MAX_OP_SIZE * OPC_BUF_SIZE); | |
26a5f13b | 562 | code_gen_max_blocks = code_gen_buffer_size / CODE_GEN_AVG_BLOCK_SIZE; |
7267c094 | 563 | tbs = g_malloc(code_gen_max_blocks * sizeof(TranslationBlock)); |
26a5f13b FB |
564 | } |
565 | ||
566 | /* Must be called before using the QEMU cpus. 'tb_size' is the size | |
567 | (in bytes) allocated to the translation buffer. Zero means default | |
568 | size. */ | |
d5ab9713 | 569 | void tcg_exec_init(unsigned long tb_size) |
26a5f13b | 570 | { |
26a5f13b FB |
571 | cpu_gen_init(); |
572 | code_gen_alloc(tb_size); | |
573 | code_gen_ptr = code_gen_buffer; | |
4369415f | 574 | page_init(); |
9002ec79 RH |
575 | #if !defined(CONFIG_USER_ONLY) || !defined(CONFIG_USE_GUEST_BASE) |
576 | /* There's no guest base to take into account, so go ahead and | |
577 | initialize the prologue now. */ | |
578 | tcg_prologue_init(&tcg_ctx); | |
579 | #endif | |
26a5f13b FB |
580 | } |
581 | ||
d5ab9713 JK |
582 | bool tcg_enabled(void) |
583 | { | |
584 | return code_gen_buffer != NULL; | |
585 | } | |
586 | ||
587 | void cpu_exec_init_all(void) | |
588 | { | |
589 | #if !defined(CONFIG_USER_ONLY) | |
590 | memory_map_init(); | |
591 | io_mem_init(); | |
592 | #endif | |
593 | } | |
594 | ||
9656f324 PB |
595 | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY) |
596 | ||
e59fb374 | 597 | static int cpu_common_post_load(void *opaque, int version_id) |
e7f4eff7 JQ |
598 | { |
599 | CPUState *env = opaque; | |
9656f324 | 600 | |
3098dba0 AJ |
601 | /* 0x01 was CPU_INTERRUPT_EXIT. This line can be removed when the |
602 | version_id is increased. */ | |
603 | env->interrupt_request &= ~0x01; | |
9656f324 PB |
604 | tlb_flush(env, 1); |
605 | ||
606 | return 0; | |
607 | } | |
e7f4eff7 JQ |
608 | |
609 | static const VMStateDescription vmstate_cpu_common = { | |
610 | .name = "cpu_common", | |
611 | .version_id = 1, | |
612 | .minimum_version_id = 1, | |
613 | .minimum_version_id_old = 1, | |
e7f4eff7 JQ |
614 | .post_load = cpu_common_post_load, |
615 | .fields = (VMStateField []) { | |
616 | VMSTATE_UINT32(halted, CPUState), | |
617 | VMSTATE_UINT32(interrupt_request, CPUState), | |
618 | VMSTATE_END_OF_LIST() | |
619 | } | |
620 | }; | |
9656f324 PB |
621 | #endif |
622 | ||
950f1472 GC |
623 | CPUState *qemu_get_cpu(int cpu) |
624 | { | |
625 | CPUState *env = first_cpu; | |
626 | ||
627 | while (env) { | |
628 | if (env->cpu_index == cpu) | |
629 | break; | |
630 | env = env->next_cpu; | |
631 | } | |
632 | ||
633 | return env; | |
634 | } | |
635 | ||
6a00d601 | 636 | void cpu_exec_init(CPUState *env) |
fd6ce8f6 | 637 | { |
6a00d601 FB |
638 | CPUState **penv; |
639 | int cpu_index; | |
640 | ||
c2764719 PB |
641 | #if defined(CONFIG_USER_ONLY) |
642 | cpu_list_lock(); | |
643 | #endif | |
6a00d601 FB |
644 | env->next_cpu = NULL; |
645 | penv = &first_cpu; | |
646 | cpu_index = 0; | |
647 | while (*penv != NULL) { | |
1e9fa730 | 648 | penv = &(*penv)->next_cpu; |
6a00d601 FB |
649 | cpu_index++; |
650 | } | |
651 | env->cpu_index = cpu_index; | |
268a362c | 652 | env->numa_node = 0; |
72cf2d4f BS |
653 | QTAILQ_INIT(&env->breakpoints); |
654 | QTAILQ_INIT(&env->watchpoints); | |
dc7a09cf JK |
655 | #ifndef CONFIG_USER_ONLY |
656 | env->thread_id = qemu_get_thread_id(); | |
657 | #endif | |
6a00d601 | 658 | *penv = env; |
c2764719 PB |
659 | #if defined(CONFIG_USER_ONLY) |
660 | cpu_list_unlock(); | |
661 | #endif | |
b3c7724c | 662 | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY) |
0be71e32 AW |
663 | vmstate_register(NULL, cpu_index, &vmstate_cpu_common, env); |
664 | register_savevm(NULL, "cpu", cpu_index, CPU_SAVE_VERSION, | |
b3c7724c PB |
665 | cpu_save, cpu_load, env); |
666 | #endif | |
fd6ce8f6 FB |
667 | } |
668 | ||
d1a1eb74 TG |
669 | /* Allocate a new translation block. Flush the translation buffer if |
670 | too many translation blocks or too much generated code. */ | |
671 | static TranslationBlock *tb_alloc(target_ulong pc) | |
672 | { | |
673 | TranslationBlock *tb; | |
674 | ||
675 | if (nb_tbs >= code_gen_max_blocks || | |
676 | (code_gen_ptr - code_gen_buffer) >= code_gen_buffer_max_size) | |
677 | return NULL; | |
678 | tb = &tbs[nb_tbs++]; | |
679 | tb->pc = pc; | |
680 | tb->cflags = 0; | |
681 | return tb; | |
682 | } | |
683 | ||
684 | void tb_free(TranslationBlock *tb) | |
685 | { | |
686 | /* In practice this is mostly used for single use temporary TB | |
687 | Ignore the hard cases and just back up if this TB happens to | |
688 | be the last one generated. */ | |
689 | if (nb_tbs > 0 && tb == &tbs[nb_tbs - 1]) { | |
690 | code_gen_ptr = tb->tc_ptr; | |
691 | nb_tbs--; | |
692 | } | |
693 | } | |
694 | ||
9fa3e853 FB |
695 | static inline void invalidate_page_bitmap(PageDesc *p) |
696 | { | |
697 | if (p->code_bitmap) { | |
7267c094 | 698 | g_free(p->code_bitmap); |
9fa3e853 FB |
699 | p->code_bitmap = NULL; |
700 | } | |
701 | p->code_write_count = 0; | |
702 | } | |
703 | ||
5cd2c5b6 RH |
704 | /* Set to NULL all the 'first_tb' fields in all PageDescs. */ |
705 | ||
706 | static void page_flush_tb_1 (int level, void **lp) | |
fd6ce8f6 | 707 | { |
5cd2c5b6 | 708 | int i; |
fd6ce8f6 | 709 | |
5cd2c5b6 RH |
710 | if (*lp == NULL) { |
711 | return; | |
712 | } | |
713 | if (level == 0) { | |
714 | PageDesc *pd = *lp; | |
7296abac | 715 | for (i = 0; i < L2_SIZE; ++i) { |
5cd2c5b6 RH |
716 | pd[i].first_tb = NULL; |
717 | invalidate_page_bitmap(pd + i); | |
fd6ce8f6 | 718 | } |
5cd2c5b6 RH |
719 | } else { |
720 | void **pp = *lp; | |
7296abac | 721 | for (i = 0; i < L2_SIZE; ++i) { |
5cd2c5b6 RH |
722 | page_flush_tb_1 (level - 1, pp + i); |
723 | } | |
724 | } | |
725 | } | |
726 | ||
727 | static void page_flush_tb(void) | |
728 | { | |
729 | int i; | |
730 | for (i = 0; i < V_L1_SIZE; i++) { | |
731 | page_flush_tb_1(V_L1_SHIFT / L2_BITS - 1, l1_map + i); | |
fd6ce8f6 FB |
732 | } |
733 | } | |
734 | ||
735 | /* flush all the translation blocks */ | |
d4e8164f | 736 | /* XXX: tb_flush is currently not thread safe */ |
6a00d601 | 737 | void tb_flush(CPUState *env1) |
fd6ce8f6 | 738 | { |
6a00d601 | 739 | CPUState *env; |
0124311e | 740 | #if defined(DEBUG_FLUSH) |
ab3d1727 BS |
741 | printf("qemu: flush code_size=%ld nb_tbs=%d avg_tb_size=%ld\n", |
742 | (unsigned long)(code_gen_ptr - code_gen_buffer), | |
743 | nb_tbs, nb_tbs > 0 ? | |
744 | ((unsigned long)(code_gen_ptr - code_gen_buffer)) / nb_tbs : 0); | |
fd6ce8f6 | 745 | #endif |
26a5f13b | 746 | if ((unsigned long)(code_gen_ptr - code_gen_buffer) > code_gen_buffer_size) |
a208e54a PB |
747 | cpu_abort(env1, "Internal error: code buffer overflow\n"); |
748 | ||
fd6ce8f6 | 749 | nb_tbs = 0; |
3b46e624 | 750 | |
6a00d601 FB |
751 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
752 | memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *)); | |
753 | } | |
9fa3e853 | 754 | |
8a8a608f | 755 | memset (tb_phys_hash, 0, CODE_GEN_PHYS_HASH_SIZE * sizeof (void *)); |
fd6ce8f6 | 756 | page_flush_tb(); |
9fa3e853 | 757 | |
fd6ce8f6 | 758 | code_gen_ptr = code_gen_buffer; |
d4e8164f FB |
759 | /* XXX: flush processor icache at this point if cache flush is |
760 | expensive */ | |
e3db7226 | 761 | tb_flush_count++; |
fd6ce8f6 FB |
762 | } |
763 | ||
764 | #ifdef DEBUG_TB_CHECK | |
765 | ||
bc98a7ef | 766 | static void tb_invalidate_check(target_ulong address) |
fd6ce8f6 FB |
767 | { |
768 | TranslationBlock *tb; | |
769 | int i; | |
770 | address &= TARGET_PAGE_MASK; | |
99773bd4 PB |
771 | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
772 | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { | |
fd6ce8f6 FB |
773 | if (!(address + TARGET_PAGE_SIZE <= tb->pc || |
774 | address >= tb->pc + tb->size)) { | |
0bf9e31a BS |
775 | printf("ERROR invalidate: address=" TARGET_FMT_lx |
776 | " PC=%08lx size=%04x\n", | |
99773bd4 | 777 | address, (long)tb->pc, tb->size); |
fd6ce8f6 FB |
778 | } |
779 | } | |
780 | } | |
781 | } | |
782 | ||
783 | /* verify that all the pages have correct rights for code */ | |
784 | static void tb_page_check(void) | |
785 | { | |
786 | TranslationBlock *tb; | |
787 | int i, flags1, flags2; | |
3b46e624 | 788 | |
99773bd4 PB |
789 | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
790 | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { | |
fd6ce8f6 FB |
791 | flags1 = page_get_flags(tb->pc); |
792 | flags2 = page_get_flags(tb->pc + tb->size - 1); | |
793 | if ((flags1 & PAGE_WRITE) || (flags2 & PAGE_WRITE)) { | |
794 | printf("ERROR page flags: PC=%08lx size=%04x f1=%x f2=%x\n", | |
99773bd4 | 795 | (long)tb->pc, tb->size, flags1, flags2); |
fd6ce8f6 FB |
796 | } |
797 | } | |
798 | } | |
799 | } | |
800 | ||
801 | #endif | |
802 | ||
803 | /* invalidate one TB */ | |
804 | static inline void tb_remove(TranslationBlock **ptb, TranslationBlock *tb, | |
805 | int next_offset) | |
806 | { | |
807 | TranslationBlock *tb1; | |
808 | for(;;) { | |
809 | tb1 = *ptb; | |
810 | if (tb1 == tb) { | |
811 | *ptb = *(TranslationBlock **)((char *)tb1 + next_offset); | |
812 | break; | |
813 | } | |
814 | ptb = (TranslationBlock **)((char *)tb1 + next_offset); | |
815 | } | |
816 | } | |
817 | ||
9fa3e853 FB |
818 | static inline void tb_page_remove(TranslationBlock **ptb, TranslationBlock *tb) |
819 | { | |
820 | TranslationBlock *tb1; | |
821 | unsigned int n1; | |
822 | ||
823 | for(;;) { | |
824 | tb1 = *ptb; | |
825 | n1 = (long)tb1 & 3; | |
826 | tb1 = (TranslationBlock *)((long)tb1 & ~3); | |
827 | if (tb1 == tb) { | |
828 | *ptb = tb1->page_next[n1]; | |
829 | break; | |
830 | } | |
831 | ptb = &tb1->page_next[n1]; | |
832 | } | |
833 | } | |
834 | ||
d4e8164f FB |
835 | static inline void tb_jmp_remove(TranslationBlock *tb, int n) |
836 | { | |
837 | TranslationBlock *tb1, **ptb; | |
838 | unsigned int n1; | |
839 | ||
840 | ptb = &tb->jmp_next[n]; | |
841 | tb1 = *ptb; | |
842 | if (tb1) { | |
843 | /* find tb(n) in circular list */ | |
844 | for(;;) { | |
845 | tb1 = *ptb; | |
846 | n1 = (long)tb1 & 3; | |
847 | tb1 = (TranslationBlock *)((long)tb1 & ~3); | |
848 | if (n1 == n && tb1 == tb) | |
849 | break; | |
850 | if (n1 == 2) { | |
851 | ptb = &tb1->jmp_first; | |
852 | } else { | |
853 | ptb = &tb1->jmp_next[n1]; | |
854 | } | |
855 | } | |
856 | /* now we can suppress tb(n) from the list */ | |
857 | *ptb = tb->jmp_next[n]; | |
858 | ||
859 | tb->jmp_next[n] = NULL; | |
860 | } | |
861 | } | |
862 | ||
863 | /* reset the jump entry 'n' of a TB so that it is not chained to | |
864 | another TB */ | |
865 | static inline void tb_reset_jump(TranslationBlock *tb, int n) | |
866 | { | |
867 | tb_set_jmp_target(tb, n, (unsigned long)(tb->tc_ptr + tb->tb_next_offset[n])); | |
868 | } | |
869 | ||
41c1b1c9 | 870 | void tb_phys_invalidate(TranslationBlock *tb, tb_page_addr_t page_addr) |
fd6ce8f6 | 871 | { |
6a00d601 | 872 | CPUState *env; |
8a40a180 | 873 | PageDesc *p; |
d4e8164f | 874 | unsigned int h, n1; |
41c1b1c9 | 875 | tb_page_addr_t phys_pc; |
8a40a180 | 876 | TranslationBlock *tb1, *tb2; |
3b46e624 | 877 | |
8a40a180 FB |
878 | /* remove the TB from the hash list */ |
879 | phys_pc = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK); | |
880 | h = tb_phys_hash_func(phys_pc); | |
5fafdf24 | 881 | tb_remove(&tb_phys_hash[h], tb, |
8a40a180 FB |
882 | offsetof(TranslationBlock, phys_hash_next)); |
883 | ||
884 | /* remove the TB from the page list */ | |
885 | if (tb->page_addr[0] != page_addr) { | |
886 | p = page_find(tb->page_addr[0] >> TARGET_PAGE_BITS); | |
887 | tb_page_remove(&p->first_tb, tb); | |
888 | invalidate_page_bitmap(p); | |
889 | } | |
890 | if (tb->page_addr[1] != -1 && tb->page_addr[1] != page_addr) { | |
891 | p = page_find(tb->page_addr[1] >> TARGET_PAGE_BITS); | |
892 | tb_page_remove(&p->first_tb, tb); | |
893 | invalidate_page_bitmap(p); | |
894 | } | |
895 | ||
36bdbe54 | 896 | tb_invalidated_flag = 1; |
59817ccb | 897 | |
fd6ce8f6 | 898 | /* remove the TB from the hash list */ |
8a40a180 | 899 | h = tb_jmp_cache_hash_func(tb->pc); |
6a00d601 FB |
900 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
901 | if (env->tb_jmp_cache[h] == tb) | |
902 | env->tb_jmp_cache[h] = NULL; | |
903 | } | |
d4e8164f FB |
904 | |
905 | /* suppress this TB from the two jump lists */ | |
906 | tb_jmp_remove(tb, 0); | |
907 | tb_jmp_remove(tb, 1); | |
908 | ||
909 | /* suppress any remaining jumps to this TB */ | |
910 | tb1 = tb->jmp_first; | |
911 | for(;;) { | |
912 | n1 = (long)tb1 & 3; | |
913 | if (n1 == 2) | |
914 | break; | |
915 | tb1 = (TranslationBlock *)((long)tb1 & ~3); | |
916 | tb2 = tb1->jmp_next[n1]; | |
917 | tb_reset_jump(tb1, n1); | |
918 | tb1->jmp_next[n1] = NULL; | |
919 | tb1 = tb2; | |
920 | } | |
921 | tb->jmp_first = (TranslationBlock *)((long)tb | 2); /* fail safe */ | |
9fa3e853 | 922 | |
e3db7226 | 923 | tb_phys_invalidate_count++; |
9fa3e853 FB |
924 | } |
925 | ||
926 | static inline void set_bits(uint8_t *tab, int start, int len) | |
927 | { | |
928 | int end, mask, end1; | |
929 | ||
930 | end = start + len; | |
931 | tab += start >> 3; | |
932 | mask = 0xff << (start & 7); | |
933 | if ((start & ~7) == (end & ~7)) { | |
934 | if (start < end) { | |
935 | mask &= ~(0xff << (end & 7)); | |
936 | *tab |= mask; | |
937 | } | |
938 | } else { | |
939 | *tab++ |= mask; | |
940 | start = (start + 8) & ~7; | |
941 | end1 = end & ~7; | |
942 | while (start < end1) { | |
943 | *tab++ = 0xff; | |
944 | start += 8; | |
945 | } | |
946 | if (start < end) { | |
947 | mask = ~(0xff << (end & 7)); | |
948 | *tab |= mask; | |
949 | } | |
950 | } | |
951 | } | |
952 | ||
953 | static void build_page_bitmap(PageDesc *p) | |
954 | { | |
955 | int n, tb_start, tb_end; | |
956 | TranslationBlock *tb; | |
3b46e624 | 957 | |
7267c094 | 958 | p->code_bitmap = g_malloc0(TARGET_PAGE_SIZE / 8); |
9fa3e853 FB |
959 | |
960 | tb = p->first_tb; | |
961 | while (tb != NULL) { | |
962 | n = (long)tb & 3; | |
963 | tb = (TranslationBlock *)((long)tb & ~3); | |
964 | /* NOTE: this is subtle as a TB may span two physical pages */ | |
965 | if (n == 0) { | |
966 | /* NOTE: tb_end may be after the end of the page, but | |
967 | it is not a problem */ | |
968 | tb_start = tb->pc & ~TARGET_PAGE_MASK; | |
969 | tb_end = tb_start + tb->size; | |
970 | if (tb_end > TARGET_PAGE_SIZE) | |
971 | tb_end = TARGET_PAGE_SIZE; | |
972 | } else { | |
973 | tb_start = 0; | |
974 | tb_end = ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); | |
975 | } | |
976 | set_bits(p->code_bitmap, tb_start, tb_end - tb_start); | |
977 | tb = tb->page_next[n]; | |
978 | } | |
979 | } | |
980 | ||
2e70f6ef PB |
981 | TranslationBlock *tb_gen_code(CPUState *env, |
982 | target_ulong pc, target_ulong cs_base, | |
983 | int flags, int cflags) | |
d720b93d FB |
984 | { |
985 | TranslationBlock *tb; | |
986 | uint8_t *tc_ptr; | |
41c1b1c9 PB |
987 | tb_page_addr_t phys_pc, phys_page2; |
988 | target_ulong virt_page2; | |
d720b93d FB |
989 | int code_gen_size; |
990 | ||
41c1b1c9 | 991 | phys_pc = get_page_addr_code(env, pc); |
c27004ec | 992 | tb = tb_alloc(pc); |
d720b93d FB |
993 | if (!tb) { |
994 | /* flush must be done */ | |
995 | tb_flush(env); | |
996 | /* cannot fail at this point */ | |
c27004ec | 997 | tb = tb_alloc(pc); |
2e70f6ef PB |
998 | /* Don't forget to invalidate previous TB info. */ |
999 | tb_invalidated_flag = 1; | |
d720b93d FB |
1000 | } |
1001 | tc_ptr = code_gen_ptr; | |
1002 | tb->tc_ptr = tc_ptr; | |
1003 | tb->cs_base = cs_base; | |
1004 | tb->flags = flags; | |
1005 | tb->cflags = cflags; | |
d07bde88 | 1006 | cpu_gen_code(env, tb, &code_gen_size); |
d720b93d | 1007 | code_gen_ptr = (void *)(((unsigned long)code_gen_ptr + code_gen_size + CODE_GEN_ALIGN - 1) & ~(CODE_GEN_ALIGN - 1)); |
3b46e624 | 1008 | |
d720b93d | 1009 | /* check next page if needed */ |
c27004ec | 1010 | virt_page2 = (pc + tb->size - 1) & TARGET_PAGE_MASK; |
d720b93d | 1011 | phys_page2 = -1; |
c27004ec | 1012 | if ((pc & TARGET_PAGE_MASK) != virt_page2) { |
41c1b1c9 | 1013 | phys_page2 = get_page_addr_code(env, virt_page2); |
d720b93d | 1014 | } |
41c1b1c9 | 1015 | tb_link_page(tb, phys_pc, phys_page2); |
2e70f6ef | 1016 | return tb; |
d720b93d | 1017 | } |
3b46e624 | 1018 | |
9fa3e853 FB |
1019 | /* invalidate all TBs which intersect with the target physical page |
1020 | starting in range [start;end[. NOTE: start and end must refer to | |
d720b93d FB |
1021 | the same physical page. 'is_cpu_write_access' should be true if called |
1022 | from a real cpu write access: the virtual CPU will exit the current | |
1023 | TB if code is modified inside this TB. */ | |
41c1b1c9 | 1024 | void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end, |
d720b93d FB |
1025 | int is_cpu_write_access) |
1026 | { | |
6b917547 | 1027 | TranslationBlock *tb, *tb_next, *saved_tb; |
d720b93d | 1028 | CPUState *env = cpu_single_env; |
41c1b1c9 | 1029 | tb_page_addr_t tb_start, tb_end; |
6b917547 AL |
1030 | PageDesc *p; |
1031 | int n; | |
1032 | #ifdef TARGET_HAS_PRECISE_SMC | |
1033 | int current_tb_not_found = is_cpu_write_access; | |
1034 | TranslationBlock *current_tb = NULL; | |
1035 | int current_tb_modified = 0; | |
1036 | target_ulong current_pc = 0; | |
1037 | target_ulong current_cs_base = 0; | |
1038 | int current_flags = 0; | |
1039 | #endif /* TARGET_HAS_PRECISE_SMC */ | |
9fa3e853 FB |
1040 | |
1041 | p = page_find(start >> TARGET_PAGE_BITS); | |
5fafdf24 | 1042 | if (!p) |
9fa3e853 | 1043 | return; |
5fafdf24 | 1044 | if (!p->code_bitmap && |
d720b93d FB |
1045 | ++p->code_write_count >= SMC_BITMAP_USE_THRESHOLD && |
1046 | is_cpu_write_access) { | |
9fa3e853 FB |
1047 | /* build code bitmap */ |
1048 | build_page_bitmap(p); | |
1049 | } | |
1050 | ||
1051 | /* we remove all the TBs in the range [start, end[ */ | |
1052 | /* XXX: see if in some cases it could be faster to invalidate all the code */ | |
1053 | tb = p->first_tb; | |
1054 | while (tb != NULL) { | |
1055 | n = (long)tb & 3; | |
1056 | tb = (TranslationBlock *)((long)tb & ~3); | |
1057 | tb_next = tb->page_next[n]; | |
1058 | /* NOTE: this is subtle as a TB may span two physical pages */ | |
1059 | if (n == 0) { | |
1060 | /* NOTE: tb_end may be after the end of the page, but | |
1061 | it is not a problem */ | |
1062 | tb_start = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK); | |
1063 | tb_end = tb_start + tb->size; | |
1064 | } else { | |
1065 | tb_start = tb->page_addr[1]; | |
1066 | tb_end = tb_start + ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); | |
1067 | } | |
1068 | if (!(tb_end <= start || tb_start >= end)) { | |
d720b93d FB |
1069 | #ifdef TARGET_HAS_PRECISE_SMC |
1070 | if (current_tb_not_found) { | |
1071 | current_tb_not_found = 0; | |
1072 | current_tb = NULL; | |
2e70f6ef | 1073 | if (env->mem_io_pc) { |
d720b93d | 1074 | /* now we have a real cpu fault */ |
2e70f6ef | 1075 | current_tb = tb_find_pc(env->mem_io_pc); |
d720b93d FB |
1076 | } |
1077 | } | |
1078 | if (current_tb == tb && | |
2e70f6ef | 1079 | (current_tb->cflags & CF_COUNT_MASK) != 1) { |
d720b93d FB |
1080 | /* If we are modifying the current TB, we must stop |
1081 | its execution. We could be more precise by checking | |
1082 | that the modification is after the current PC, but it | |
1083 | would require a specialized function to partially | |
1084 | restore the CPU state */ | |
3b46e624 | 1085 | |
d720b93d | 1086 | current_tb_modified = 1; |
618ba8e6 | 1087 | cpu_restore_state(current_tb, env, env->mem_io_pc); |
6b917547 AL |
1088 | cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, |
1089 | ¤t_flags); | |
d720b93d FB |
1090 | } |
1091 | #endif /* TARGET_HAS_PRECISE_SMC */ | |
6f5a9f7e FB |
1092 | /* we need to do that to handle the case where a signal |
1093 | occurs while doing tb_phys_invalidate() */ | |
1094 | saved_tb = NULL; | |
1095 | if (env) { | |
1096 | saved_tb = env->current_tb; | |
1097 | env->current_tb = NULL; | |
1098 | } | |
9fa3e853 | 1099 | tb_phys_invalidate(tb, -1); |
6f5a9f7e FB |
1100 | if (env) { |
1101 | env->current_tb = saved_tb; | |
1102 | if (env->interrupt_request && env->current_tb) | |
1103 | cpu_interrupt(env, env->interrupt_request); | |
1104 | } | |
9fa3e853 FB |
1105 | } |
1106 | tb = tb_next; | |
1107 | } | |
1108 | #if !defined(CONFIG_USER_ONLY) | |
1109 | /* if no code remaining, no need to continue to use slow writes */ | |
1110 | if (!p->first_tb) { | |
1111 | invalidate_page_bitmap(p); | |
d720b93d | 1112 | if (is_cpu_write_access) { |
2e70f6ef | 1113 | tlb_unprotect_code_phys(env, start, env->mem_io_vaddr); |
d720b93d FB |
1114 | } |
1115 | } | |
1116 | #endif | |
1117 | #ifdef TARGET_HAS_PRECISE_SMC | |
1118 | if (current_tb_modified) { | |
1119 | /* we generate a block containing just the instruction | |
1120 | modifying the memory. It will ensure that it cannot modify | |
1121 | itself */ | |
ea1c1802 | 1122 | env->current_tb = NULL; |
2e70f6ef | 1123 | tb_gen_code(env, current_pc, current_cs_base, current_flags, 1); |
d720b93d | 1124 | cpu_resume_from_signal(env, NULL); |
9fa3e853 | 1125 | } |
fd6ce8f6 | 1126 | #endif |
9fa3e853 | 1127 | } |
fd6ce8f6 | 1128 | |
9fa3e853 | 1129 | /* len must be <= 8 and start must be a multiple of len */ |
41c1b1c9 | 1130 | static inline void tb_invalidate_phys_page_fast(tb_page_addr_t start, int len) |
9fa3e853 FB |
1131 | { |
1132 | PageDesc *p; | |
1133 | int offset, b; | |
59817ccb | 1134 | #if 0 |
a4193c8a | 1135 | if (1) { |
93fcfe39 AL |
1136 | qemu_log("modifying code at 0x%x size=%d EIP=%x PC=%08x\n", |
1137 | cpu_single_env->mem_io_vaddr, len, | |
1138 | cpu_single_env->eip, | |
1139 | cpu_single_env->eip + (long)cpu_single_env->segs[R_CS].base); | |
59817ccb FB |
1140 | } |
1141 | #endif | |
9fa3e853 | 1142 | p = page_find(start >> TARGET_PAGE_BITS); |
5fafdf24 | 1143 | if (!p) |
9fa3e853 FB |
1144 | return; |
1145 | if (p->code_bitmap) { | |
1146 | offset = start & ~TARGET_PAGE_MASK; | |
1147 | b = p->code_bitmap[offset >> 3] >> (offset & 7); | |
1148 | if (b & ((1 << len) - 1)) | |
1149 | goto do_invalidate; | |
1150 | } else { | |
1151 | do_invalidate: | |
d720b93d | 1152 | tb_invalidate_phys_page_range(start, start + len, 1); |
9fa3e853 FB |
1153 | } |
1154 | } | |
1155 | ||
9fa3e853 | 1156 | #if !defined(CONFIG_SOFTMMU) |
41c1b1c9 | 1157 | static void tb_invalidate_phys_page(tb_page_addr_t addr, |
d720b93d | 1158 | unsigned long pc, void *puc) |
9fa3e853 | 1159 | { |
6b917547 | 1160 | TranslationBlock *tb; |
9fa3e853 | 1161 | PageDesc *p; |
6b917547 | 1162 | int n; |
d720b93d | 1163 | #ifdef TARGET_HAS_PRECISE_SMC |
6b917547 | 1164 | TranslationBlock *current_tb = NULL; |
d720b93d | 1165 | CPUState *env = cpu_single_env; |
6b917547 AL |
1166 | int current_tb_modified = 0; |
1167 | target_ulong current_pc = 0; | |
1168 | target_ulong current_cs_base = 0; | |
1169 | int current_flags = 0; | |
d720b93d | 1170 | #endif |
9fa3e853 FB |
1171 | |
1172 | addr &= TARGET_PAGE_MASK; | |
1173 | p = page_find(addr >> TARGET_PAGE_BITS); | |
5fafdf24 | 1174 | if (!p) |
9fa3e853 FB |
1175 | return; |
1176 | tb = p->first_tb; | |
d720b93d FB |
1177 | #ifdef TARGET_HAS_PRECISE_SMC |
1178 | if (tb && pc != 0) { | |
1179 | current_tb = tb_find_pc(pc); | |
1180 | } | |
1181 | #endif | |
9fa3e853 FB |
1182 | while (tb != NULL) { |
1183 | n = (long)tb & 3; | |
1184 | tb = (TranslationBlock *)((long)tb & ~3); | |
d720b93d FB |
1185 | #ifdef TARGET_HAS_PRECISE_SMC |
1186 | if (current_tb == tb && | |
2e70f6ef | 1187 | (current_tb->cflags & CF_COUNT_MASK) != 1) { |
d720b93d FB |
1188 | /* If we are modifying the current TB, we must stop |
1189 | its execution. We could be more precise by checking | |
1190 | that the modification is after the current PC, but it | |
1191 | would require a specialized function to partially | |
1192 | restore the CPU state */ | |
3b46e624 | 1193 | |
d720b93d | 1194 | current_tb_modified = 1; |
618ba8e6 | 1195 | cpu_restore_state(current_tb, env, pc); |
6b917547 AL |
1196 | cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, |
1197 | ¤t_flags); | |
d720b93d FB |
1198 | } |
1199 | #endif /* TARGET_HAS_PRECISE_SMC */ | |
9fa3e853 FB |
1200 | tb_phys_invalidate(tb, addr); |
1201 | tb = tb->page_next[n]; | |
1202 | } | |
fd6ce8f6 | 1203 | p->first_tb = NULL; |
d720b93d FB |
1204 | #ifdef TARGET_HAS_PRECISE_SMC |
1205 | if (current_tb_modified) { | |
1206 | /* we generate a block containing just the instruction | |
1207 | modifying the memory. It will ensure that it cannot modify | |
1208 | itself */ | |
ea1c1802 | 1209 | env->current_tb = NULL; |
2e70f6ef | 1210 | tb_gen_code(env, current_pc, current_cs_base, current_flags, 1); |
d720b93d FB |
1211 | cpu_resume_from_signal(env, puc); |
1212 | } | |
1213 | #endif | |
fd6ce8f6 | 1214 | } |
9fa3e853 | 1215 | #endif |
fd6ce8f6 FB |
1216 | |
1217 | /* add the tb in the target page and protect it if necessary */ | |
5fafdf24 | 1218 | static inline void tb_alloc_page(TranslationBlock *tb, |
41c1b1c9 | 1219 | unsigned int n, tb_page_addr_t page_addr) |
fd6ce8f6 FB |
1220 | { |
1221 | PageDesc *p; | |
4429ab44 JQ |
1222 | #ifndef CONFIG_USER_ONLY |
1223 | bool page_already_protected; | |
1224 | #endif | |
9fa3e853 FB |
1225 | |
1226 | tb->page_addr[n] = page_addr; | |
5cd2c5b6 | 1227 | p = page_find_alloc(page_addr >> TARGET_PAGE_BITS, 1); |
9fa3e853 | 1228 | tb->page_next[n] = p->first_tb; |
4429ab44 JQ |
1229 | #ifndef CONFIG_USER_ONLY |
1230 | page_already_protected = p->first_tb != NULL; | |
1231 | #endif | |
9fa3e853 FB |
1232 | p->first_tb = (TranslationBlock *)((long)tb | n); |
1233 | invalidate_page_bitmap(p); | |
fd6ce8f6 | 1234 | |
107db443 | 1235 | #if defined(TARGET_HAS_SMC) || 1 |
d720b93d | 1236 | |
9fa3e853 | 1237 | #if defined(CONFIG_USER_ONLY) |
fd6ce8f6 | 1238 | if (p->flags & PAGE_WRITE) { |
53a5960a PB |
1239 | target_ulong addr; |
1240 | PageDesc *p2; | |
9fa3e853 FB |
1241 | int prot; |
1242 | ||
fd6ce8f6 FB |
1243 | /* force the host page as non writable (writes will have a |
1244 | page fault + mprotect overhead) */ | |
53a5960a | 1245 | page_addr &= qemu_host_page_mask; |
fd6ce8f6 | 1246 | prot = 0; |
53a5960a PB |
1247 | for(addr = page_addr; addr < page_addr + qemu_host_page_size; |
1248 | addr += TARGET_PAGE_SIZE) { | |
1249 | ||
1250 | p2 = page_find (addr >> TARGET_PAGE_BITS); | |
1251 | if (!p2) | |
1252 | continue; | |
1253 | prot |= p2->flags; | |
1254 | p2->flags &= ~PAGE_WRITE; | |
53a5960a | 1255 | } |
5fafdf24 | 1256 | mprotect(g2h(page_addr), qemu_host_page_size, |
fd6ce8f6 FB |
1257 | (prot & PAGE_BITS) & ~PAGE_WRITE); |
1258 | #ifdef DEBUG_TB_INVALIDATE | |
ab3d1727 | 1259 | printf("protecting code page: 0x" TARGET_FMT_lx "\n", |
53a5960a | 1260 | page_addr); |
fd6ce8f6 | 1261 | #endif |
fd6ce8f6 | 1262 | } |
9fa3e853 FB |
1263 | #else |
1264 | /* if some code is already present, then the pages are already | |
1265 | protected. So we handle the case where only the first TB is | |
1266 | allocated in a physical page */ | |
4429ab44 | 1267 | if (!page_already_protected) { |
6a00d601 | 1268 | tlb_protect_code(page_addr); |
9fa3e853 FB |
1269 | } |
1270 | #endif | |
d720b93d FB |
1271 | |
1272 | #endif /* TARGET_HAS_SMC */ | |
fd6ce8f6 FB |
1273 | } |
1274 | ||
9fa3e853 FB |
1275 | /* add a new TB and link it to the physical page tables. phys_page2 is |
1276 | (-1) to indicate that only one page contains the TB. */ | |
41c1b1c9 PB |
1277 | void tb_link_page(TranslationBlock *tb, |
1278 | tb_page_addr_t phys_pc, tb_page_addr_t phys_page2) | |
d4e8164f | 1279 | { |
9fa3e853 FB |
1280 | unsigned int h; |
1281 | TranslationBlock **ptb; | |
1282 | ||
c8a706fe PB |
1283 | /* Grab the mmap lock to stop another thread invalidating this TB |
1284 | before we are done. */ | |
1285 | mmap_lock(); | |
9fa3e853 FB |
1286 | /* add in the physical hash table */ |
1287 | h = tb_phys_hash_func(phys_pc); | |
1288 | ptb = &tb_phys_hash[h]; | |
1289 | tb->phys_hash_next = *ptb; | |
1290 | *ptb = tb; | |
fd6ce8f6 FB |
1291 | |
1292 | /* add in the page list */ | |
9fa3e853 FB |
1293 | tb_alloc_page(tb, 0, phys_pc & TARGET_PAGE_MASK); |
1294 | if (phys_page2 != -1) | |
1295 | tb_alloc_page(tb, 1, phys_page2); | |
1296 | else | |
1297 | tb->page_addr[1] = -1; | |
9fa3e853 | 1298 | |
d4e8164f FB |
1299 | tb->jmp_first = (TranslationBlock *)((long)tb | 2); |
1300 | tb->jmp_next[0] = NULL; | |
1301 | tb->jmp_next[1] = NULL; | |
1302 | ||
1303 | /* init original jump addresses */ | |
1304 | if (tb->tb_next_offset[0] != 0xffff) | |
1305 | tb_reset_jump(tb, 0); | |
1306 | if (tb->tb_next_offset[1] != 0xffff) | |
1307 | tb_reset_jump(tb, 1); | |
8a40a180 FB |
1308 | |
1309 | #ifdef DEBUG_TB_CHECK | |
1310 | tb_page_check(); | |
1311 | #endif | |
c8a706fe | 1312 | mmap_unlock(); |
fd6ce8f6 FB |
1313 | } |
1314 | ||
9fa3e853 FB |
1315 | /* find the TB 'tb' such that tb[0].tc_ptr <= tc_ptr < |
1316 | tb[1].tc_ptr. Return NULL if not found */ | |
1317 | TranslationBlock *tb_find_pc(unsigned long tc_ptr) | |
fd6ce8f6 | 1318 | { |
9fa3e853 FB |
1319 | int m_min, m_max, m; |
1320 | unsigned long v; | |
1321 | TranslationBlock *tb; | |
a513fe19 FB |
1322 | |
1323 | if (nb_tbs <= 0) | |
1324 | return NULL; | |
1325 | if (tc_ptr < (unsigned long)code_gen_buffer || | |
1326 | tc_ptr >= (unsigned long)code_gen_ptr) | |
1327 | return NULL; | |
1328 | /* binary search (cf Knuth) */ | |
1329 | m_min = 0; | |
1330 | m_max = nb_tbs - 1; | |
1331 | while (m_min <= m_max) { | |
1332 | m = (m_min + m_max) >> 1; | |
1333 | tb = &tbs[m]; | |
1334 | v = (unsigned long)tb->tc_ptr; | |
1335 | if (v == tc_ptr) | |
1336 | return tb; | |
1337 | else if (tc_ptr < v) { | |
1338 | m_max = m - 1; | |
1339 | } else { | |
1340 | m_min = m + 1; | |
1341 | } | |
5fafdf24 | 1342 | } |
a513fe19 FB |
1343 | return &tbs[m_max]; |
1344 | } | |
7501267e | 1345 | |
ea041c0e FB |
1346 | static void tb_reset_jump_recursive(TranslationBlock *tb); |
1347 | ||
1348 | static inline void tb_reset_jump_recursive2(TranslationBlock *tb, int n) | |
1349 | { | |
1350 | TranslationBlock *tb1, *tb_next, **ptb; | |
1351 | unsigned int n1; | |
1352 | ||
1353 | tb1 = tb->jmp_next[n]; | |
1354 | if (tb1 != NULL) { | |
1355 | /* find head of list */ | |
1356 | for(;;) { | |
1357 | n1 = (long)tb1 & 3; | |
1358 | tb1 = (TranslationBlock *)((long)tb1 & ~3); | |
1359 | if (n1 == 2) | |
1360 | break; | |
1361 | tb1 = tb1->jmp_next[n1]; | |
1362 | } | |
1363 | /* we are now sure now that tb jumps to tb1 */ | |
1364 | tb_next = tb1; | |
1365 | ||
1366 | /* remove tb from the jmp_first list */ | |
1367 | ptb = &tb_next->jmp_first; | |
1368 | for(;;) { | |
1369 | tb1 = *ptb; | |
1370 | n1 = (long)tb1 & 3; | |
1371 | tb1 = (TranslationBlock *)((long)tb1 & ~3); | |
1372 | if (n1 == n && tb1 == tb) | |
1373 | break; | |
1374 | ptb = &tb1->jmp_next[n1]; | |
1375 | } | |
1376 | *ptb = tb->jmp_next[n]; | |
1377 | tb->jmp_next[n] = NULL; | |
3b46e624 | 1378 | |
ea041c0e FB |
1379 | /* suppress the jump to next tb in generated code */ |
1380 | tb_reset_jump(tb, n); | |
1381 | ||
0124311e | 1382 | /* suppress jumps in the tb on which we could have jumped */ |
ea041c0e FB |
1383 | tb_reset_jump_recursive(tb_next); |
1384 | } | |
1385 | } | |
1386 | ||
1387 | static void tb_reset_jump_recursive(TranslationBlock *tb) | |
1388 | { | |
1389 | tb_reset_jump_recursive2(tb, 0); | |
1390 | tb_reset_jump_recursive2(tb, 1); | |
1391 | } | |
1392 | ||
1fddef4b | 1393 | #if defined(TARGET_HAS_ICE) |
94df27fd PB |
1394 | #if defined(CONFIG_USER_ONLY) |
1395 | static void breakpoint_invalidate(CPUState *env, target_ulong pc) | |
1396 | { | |
1397 | tb_invalidate_phys_page_range(pc, pc + 1, 0); | |
1398 | } | |
1399 | #else | |
d720b93d FB |
1400 | static void breakpoint_invalidate(CPUState *env, target_ulong pc) |
1401 | { | |
c227f099 | 1402 | target_phys_addr_t addr; |
9b3c35e0 | 1403 | target_ulong pd; |
c227f099 | 1404 | ram_addr_t ram_addr; |
c2f07f81 | 1405 | PhysPageDesc *p; |
d720b93d | 1406 | |
c2f07f81 PB |
1407 | addr = cpu_get_phys_page_debug(env, pc); |
1408 | p = phys_page_find(addr >> TARGET_PAGE_BITS); | |
1409 | if (!p) { | |
1410 | pd = IO_MEM_UNASSIGNED; | |
1411 | } else { | |
1412 | pd = p->phys_offset; | |
1413 | } | |
1414 | ram_addr = (pd & TARGET_PAGE_MASK) | (pc & ~TARGET_PAGE_MASK); | |
706cd4b5 | 1415 | tb_invalidate_phys_page_range(ram_addr, ram_addr + 1, 0); |
d720b93d | 1416 | } |
c27004ec | 1417 | #endif |
94df27fd | 1418 | #endif /* TARGET_HAS_ICE */ |
d720b93d | 1419 | |
c527ee8f PB |
1420 | #if defined(CONFIG_USER_ONLY) |
1421 | void cpu_watchpoint_remove_all(CPUState *env, int mask) | |
1422 | ||
1423 | { | |
1424 | } | |
1425 | ||
1426 | int cpu_watchpoint_insert(CPUState *env, target_ulong addr, target_ulong len, | |
1427 | int flags, CPUWatchpoint **watchpoint) | |
1428 | { | |
1429 | return -ENOSYS; | |
1430 | } | |
1431 | #else | |
6658ffb8 | 1432 | /* Add a watchpoint. */ |
a1d1bb31 AL |
1433 | int cpu_watchpoint_insert(CPUState *env, target_ulong addr, target_ulong len, |
1434 | int flags, CPUWatchpoint **watchpoint) | |
6658ffb8 | 1435 | { |
b4051334 | 1436 | target_ulong len_mask = ~(len - 1); |
c0ce998e | 1437 | CPUWatchpoint *wp; |
6658ffb8 | 1438 | |
b4051334 AL |
1439 | /* sanity checks: allow power-of-2 lengths, deny unaligned watchpoints */ |
1440 | if ((len != 1 && len != 2 && len != 4 && len != 8) || (addr & ~len_mask)) { | |
1441 | fprintf(stderr, "qemu: tried to set invalid watchpoint at " | |
1442 | TARGET_FMT_lx ", len=" TARGET_FMT_lu "\n", addr, len); | |
1443 | return -EINVAL; | |
1444 | } | |
7267c094 | 1445 | wp = g_malloc(sizeof(*wp)); |
a1d1bb31 AL |
1446 | |
1447 | wp->vaddr = addr; | |
b4051334 | 1448 | wp->len_mask = len_mask; |
a1d1bb31 AL |
1449 | wp->flags = flags; |
1450 | ||
2dc9f411 | 1451 | /* keep all GDB-injected watchpoints in front */ |
c0ce998e | 1452 | if (flags & BP_GDB) |
72cf2d4f | 1453 | QTAILQ_INSERT_HEAD(&env->watchpoints, wp, entry); |
c0ce998e | 1454 | else |
72cf2d4f | 1455 | QTAILQ_INSERT_TAIL(&env->watchpoints, wp, entry); |
6658ffb8 | 1456 | |
6658ffb8 | 1457 | tlb_flush_page(env, addr); |
a1d1bb31 AL |
1458 | |
1459 | if (watchpoint) | |
1460 | *watchpoint = wp; | |
1461 | return 0; | |
6658ffb8 PB |
1462 | } |
1463 | ||
a1d1bb31 AL |
1464 | /* Remove a specific watchpoint. */ |
1465 | int cpu_watchpoint_remove(CPUState *env, target_ulong addr, target_ulong len, | |
1466 | int flags) | |
6658ffb8 | 1467 | { |
b4051334 | 1468 | target_ulong len_mask = ~(len - 1); |
a1d1bb31 | 1469 | CPUWatchpoint *wp; |
6658ffb8 | 1470 | |
72cf2d4f | 1471 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
b4051334 | 1472 | if (addr == wp->vaddr && len_mask == wp->len_mask |
6e140f28 | 1473 | && flags == (wp->flags & ~BP_WATCHPOINT_HIT)) { |
a1d1bb31 | 1474 | cpu_watchpoint_remove_by_ref(env, wp); |
6658ffb8 PB |
1475 | return 0; |
1476 | } | |
1477 | } | |
a1d1bb31 | 1478 | return -ENOENT; |
6658ffb8 PB |
1479 | } |
1480 | ||
a1d1bb31 AL |
1481 | /* Remove a specific watchpoint by reference. */ |
1482 | void cpu_watchpoint_remove_by_ref(CPUState *env, CPUWatchpoint *watchpoint) | |
1483 | { | |
72cf2d4f | 1484 | QTAILQ_REMOVE(&env->watchpoints, watchpoint, entry); |
7d03f82f | 1485 | |
a1d1bb31 AL |
1486 | tlb_flush_page(env, watchpoint->vaddr); |
1487 | ||
7267c094 | 1488 | g_free(watchpoint); |
a1d1bb31 AL |
1489 | } |
1490 | ||
1491 | /* Remove all matching watchpoints. */ | |
1492 | void cpu_watchpoint_remove_all(CPUState *env, int mask) | |
1493 | { | |
c0ce998e | 1494 | CPUWatchpoint *wp, *next; |
a1d1bb31 | 1495 | |
72cf2d4f | 1496 | QTAILQ_FOREACH_SAFE(wp, &env->watchpoints, entry, next) { |
a1d1bb31 AL |
1497 | if (wp->flags & mask) |
1498 | cpu_watchpoint_remove_by_ref(env, wp); | |
c0ce998e | 1499 | } |
7d03f82f | 1500 | } |
c527ee8f | 1501 | #endif |
7d03f82f | 1502 | |
a1d1bb31 AL |
1503 | /* Add a breakpoint. */ |
1504 | int cpu_breakpoint_insert(CPUState *env, target_ulong pc, int flags, | |
1505 | CPUBreakpoint **breakpoint) | |
4c3a88a2 | 1506 | { |
1fddef4b | 1507 | #if defined(TARGET_HAS_ICE) |
c0ce998e | 1508 | CPUBreakpoint *bp; |
3b46e624 | 1509 | |
7267c094 | 1510 | bp = g_malloc(sizeof(*bp)); |
4c3a88a2 | 1511 | |
a1d1bb31 AL |
1512 | bp->pc = pc; |
1513 | bp->flags = flags; | |
1514 | ||
2dc9f411 | 1515 | /* keep all GDB-injected breakpoints in front */ |
c0ce998e | 1516 | if (flags & BP_GDB) |
72cf2d4f | 1517 | QTAILQ_INSERT_HEAD(&env->breakpoints, bp, entry); |
c0ce998e | 1518 | else |
72cf2d4f | 1519 | QTAILQ_INSERT_TAIL(&env->breakpoints, bp, entry); |
3b46e624 | 1520 | |
d720b93d | 1521 | breakpoint_invalidate(env, pc); |
a1d1bb31 AL |
1522 | |
1523 | if (breakpoint) | |
1524 | *breakpoint = bp; | |
4c3a88a2 FB |
1525 | return 0; |
1526 | #else | |
a1d1bb31 | 1527 | return -ENOSYS; |
4c3a88a2 FB |
1528 | #endif |
1529 | } | |
1530 | ||
a1d1bb31 AL |
1531 | /* Remove a specific breakpoint. */ |
1532 | int cpu_breakpoint_remove(CPUState *env, target_ulong pc, int flags) | |
1533 | { | |
7d03f82f | 1534 | #if defined(TARGET_HAS_ICE) |
a1d1bb31 AL |
1535 | CPUBreakpoint *bp; |
1536 | ||
72cf2d4f | 1537 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
a1d1bb31 AL |
1538 | if (bp->pc == pc && bp->flags == flags) { |
1539 | cpu_breakpoint_remove_by_ref(env, bp); | |
1540 | return 0; | |
1541 | } | |
7d03f82f | 1542 | } |
a1d1bb31 AL |
1543 | return -ENOENT; |
1544 | #else | |
1545 | return -ENOSYS; | |
7d03f82f EI |
1546 | #endif |
1547 | } | |
1548 | ||
a1d1bb31 AL |
1549 | /* Remove a specific breakpoint by reference. */ |
1550 | void cpu_breakpoint_remove_by_ref(CPUState *env, CPUBreakpoint *breakpoint) | |
4c3a88a2 | 1551 | { |
1fddef4b | 1552 | #if defined(TARGET_HAS_ICE) |
72cf2d4f | 1553 | QTAILQ_REMOVE(&env->breakpoints, breakpoint, entry); |
d720b93d | 1554 | |
a1d1bb31 AL |
1555 | breakpoint_invalidate(env, breakpoint->pc); |
1556 | ||
7267c094 | 1557 | g_free(breakpoint); |
a1d1bb31 AL |
1558 | #endif |
1559 | } | |
1560 | ||
1561 | /* Remove all matching breakpoints. */ | |
1562 | void cpu_breakpoint_remove_all(CPUState *env, int mask) | |
1563 | { | |
1564 | #if defined(TARGET_HAS_ICE) | |
c0ce998e | 1565 | CPUBreakpoint *bp, *next; |
a1d1bb31 | 1566 | |
72cf2d4f | 1567 | QTAILQ_FOREACH_SAFE(bp, &env->breakpoints, entry, next) { |
a1d1bb31 AL |
1568 | if (bp->flags & mask) |
1569 | cpu_breakpoint_remove_by_ref(env, bp); | |
c0ce998e | 1570 | } |
4c3a88a2 FB |
1571 | #endif |
1572 | } | |
1573 | ||
c33a346e FB |
1574 | /* enable or disable single step mode. EXCP_DEBUG is returned by the |
1575 | CPU loop after each instruction */ | |
1576 | void cpu_single_step(CPUState *env, int enabled) | |
1577 | { | |
1fddef4b | 1578 | #if defined(TARGET_HAS_ICE) |
c33a346e FB |
1579 | if (env->singlestep_enabled != enabled) { |
1580 | env->singlestep_enabled = enabled; | |
e22a25c9 AL |
1581 | if (kvm_enabled()) |
1582 | kvm_update_guest_debug(env, 0); | |
1583 | else { | |
ccbb4d44 | 1584 | /* must flush all the translated code to avoid inconsistencies */ |
e22a25c9 AL |
1585 | /* XXX: only flush what is necessary */ |
1586 | tb_flush(env); | |
1587 | } | |
c33a346e FB |
1588 | } |
1589 | #endif | |
1590 | } | |
1591 | ||
34865134 FB |
1592 | /* enable or disable low levels log */ |
1593 | void cpu_set_log(int log_flags) | |
1594 | { | |
1595 | loglevel = log_flags; | |
1596 | if (loglevel && !logfile) { | |
11fcfab4 | 1597 | logfile = fopen(logfilename, log_append ? "a" : "w"); |
34865134 FB |
1598 | if (!logfile) { |
1599 | perror(logfilename); | |
1600 | _exit(1); | |
1601 | } | |
9fa3e853 FB |
1602 | #if !defined(CONFIG_SOFTMMU) |
1603 | /* must avoid mmap() usage of glibc by setting a buffer "by hand" */ | |
1604 | { | |
b55266b5 | 1605 | static char logfile_buf[4096]; |
9fa3e853 FB |
1606 | setvbuf(logfile, logfile_buf, _IOLBF, sizeof(logfile_buf)); |
1607 | } | |
daf767b1 SW |
1608 | #elif defined(_WIN32) |
1609 | /* Win32 doesn't support line-buffering, so use unbuffered output. */ | |
1610 | setvbuf(logfile, NULL, _IONBF, 0); | |
1611 | #else | |
34865134 | 1612 | setvbuf(logfile, NULL, _IOLBF, 0); |
9fa3e853 | 1613 | #endif |
e735b91c PB |
1614 | log_append = 1; |
1615 | } | |
1616 | if (!loglevel && logfile) { | |
1617 | fclose(logfile); | |
1618 | logfile = NULL; | |
34865134 FB |
1619 | } |
1620 | } | |
1621 | ||
1622 | void cpu_set_log_filename(const char *filename) | |
1623 | { | |
1624 | logfilename = strdup(filename); | |
e735b91c PB |
1625 | if (logfile) { |
1626 | fclose(logfile); | |
1627 | logfile = NULL; | |
1628 | } | |
1629 | cpu_set_log(loglevel); | |
34865134 | 1630 | } |
c33a346e | 1631 | |
3098dba0 | 1632 | static void cpu_unlink_tb(CPUState *env) |
ea041c0e | 1633 | { |
3098dba0 AJ |
1634 | /* FIXME: TB unchaining isn't SMP safe. For now just ignore the |
1635 | problem and hope the cpu will stop of its own accord. For userspace | |
1636 | emulation this often isn't actually as bad as it sounds. Often | |
1637 | signals are used primarily to interrupt blocking syscalls. */ | |
ea041c0e | 1638 | TranslationBlock *tb; |
c227f099 | 1639 | static spinlock_t interrupt_lock = SPIN_LOCK_UNLOCKED; |
59817ccb | 1640 | |
cab1b4bd | 1641 | spin_lock(&interrupt_lock); |
3098dba0 AJ |
1642 | tb = env->current_tb; |
1643 | /* if the cpu is currently executing code, we must unlink it and | |
1644 | all the potentially executing TB */ | |
f76cfe56 | 1645 | if (tb) { |
3098dba0 AJ |
1646 | env->current_tb = NULL; |
1647 | tb_reset_jump_recursive(tb); | |
be214e6c | 1648 | } |
cab1b4bd | 1649 | spin_unlock(&interrupt_lock); |
3098dba0 AJ |
1650 | } |
1651 | ||
97ffbd8d | 1652 | #ifndef CONFIG_USER_ONLY |
3098dba0 | 1653 | /* mask must never be zero, except for A20 change call */ |
ec6959d0 | 1654 | static void tcg_handle_interrupt(CPUState *env, int mask) |
3098dba0 AJ |
1655 | { |
1656 | int old_mask; | |
be214e6c | 1657 | |
2e70f6ef | 1658 | old_mask = env->interrupt_request; |
68a79315 | 1659 | env->interrupt_request |= mask; |
3098dba0 | 1660 | |
8edac960 AL |
1661 | /* |
1662 | * If called from iothread context, wake the target cpu in | |
1663 | * case its halted. | |
1664 | */ | |
b7680cb6 | 1665 | if (!qemu_cpu_is_self(env)) { |
8edac960 AL |
1666 | qemu_cpu_kick(env); |
1667 | return; | |
1668 | } | |
8edac960 | 1669 | |
2e70f6ef | 1670 | if (use_icount) { |
266910c4 | 1671 | env->icount_decr.u16.high = 0xffff; |
2e70f6ef | 1672 | if (!can_do_io(env) |
be214e6c | 1673 | && (mask & ~old_mask) != 0) { |
2e70f6ef PB |
1674 | cpu_abort(env, "Raised interrupt while not in I/O function"); |
1675 | } | |
2e70f6ef | 1676 | } else { |
3098dba0 | 1677 | cpu_unlink_tb(env); |
ea041c0e FB |
1678 | } |
1679 | } | |
1680 | ||
ec6959d0 JK |
1681 | CPUInterruptHandler cpu_interrupt_handler = tcg_handle_interrupt; |
1682 | ||
97ffbd8d JK |
1683 | #else /* CONFIG_USER_ONLY */ |
1684 | ||
1685 | void cpu_interrupt(CPUState *env, int mask) | |
1686 | { | |
1687 | env->interrupt_request |= mask; | |
1688 | cpu_unlink_tb(env); | |
1689 | } | |
1690 | #endif /* CONFIG_USER_ONLY */ | |
1691 | ||
b54ad049 FB |
1692 | void cpu_reset_interrupt(CPUState *env, int mask) |
1693 | { | |
1694 | env->interrupt_request &= ~mask; | |
1695 | } | |
1696 | ||
3098dba0 AJ |
1697 | void cpu_exit(CPUState *env) |
1698 | { | |
1699 | env->exit_request = 1; | |
1700 | cpu_unlink_tb(env); | |
1701 | } | |
1702 | ||
c7cd6a37 | 1703 | const CPULogItem cpu_log_items[] = { |
5fafdf24 | 1704 | { CPU_LOG_TB_OUT_ASM, "out_asm", |
f193c797 FB |
1705 | "show generated host assembly code for each compiled TB" }, |
1706 | { CPU_LOG_TB_IN_ASM, "in_asm", | |
1707 | "show target assembly code for each compiled TB" }, | |
5fafdf24 | 1708 | { CPU_LOG_TB_OP, "op", |
57fec1fe | 1709 | "show micro ops for each compiled TB" }, |
f193c797 | 1710 | { CPU_LOG_TB_OP_OPT, "op_opt", |
e01a1157 BS |
1711 | "show micro ops " |
1712 | #ifdef TARGET_I386 | |
1713 | "before eflags optimization and " | |
f193c797 | 1714 | #endif |
e01a1157 | 1715 | "after liveness analysis" }, |
f193c797 FB |
1716 | { CPU_LOG_INT, "int", |
1717 | "show interrupts/exceptions in short format" }, | |
1718 | { CPU_LOG_EXEC, "exec", | |
1719 | "show trace before each executed TB (lots of logs)" }, | |
9fddaa0c | 1720 | { CPU_LOG_TB_CPU, "cpu", |
e91c8a77 | 1721 | "show CPU state before block translation" }, |
f193c797 FB |
1722 | #ifdef TARGET_I386 |
1723 | { CPU_LOG_PCALL, "pcall", | |
1724 | "show protected mode far calls/returns/exceptions" }, | |
eca1bdf4 AL |
1725 | { CPU_LOG_RESET, "cpu_reset", |
1726 | "show CPU state before CPU resets" }, | |
f193c797 | 1727 | #endif |
8e3a9fd2 | 1728 | #ifdef DEBUG_IOPORT |
fd872598 FB |
1729 | { CPU_LOG_IOPORT, "ioport", |
1730 | "show all i/o ports accesses" }, | |
8e3a9fd2 | 1731 | #endif |
f193c797 FB |
1732 | { 0, NULL, NULL }, |
1733 | }; | |
1734 | ||
f6f3fbca MT |
1735 | #ifndef CONFIG_USER_ONLY |
1736 | static QLIST_HEAD(memory_client_list, CPUPhysMemoryClient) memory_client_list | |
1737 | = QLIST_HEAD_INITIALIZER(memory_client_list); | |
1738 | ||
1739 | static void cpu_notify_set_memory(target_phys_addr_t start_addr, | |
9742bf26 | 1740 | ram_addr_t size, |
0fd542fb MT |
1741 | ram_addr_t phys_offset, |
1742 | bool log_dirty) | |
f6f3fbca MT |
1743 | { |
1744 | CPUPhysMemoryClient *client; | |
1745 | QLIST_FOREACH(client, &memory_client_list, list) { | |
0fd542fb | 1746 | client->set_memory(client, start_addr, size, phys_offset, log_dirty); |
f6f3fbca MT |
1747 | } |
1748 | } | |
1749 | ||
1750 | static int cpu_notify_sync_dirty_bitmap(target_phys_addr_t start, | |
9742bf26 | 1751 | target_phys_addr_t end) |
f6f3fbca MT |
1752 | { |
1753 | CPUPhysMemoryClient *client; | |
1754 | QLIST_FOREACH(client, &memory_client_list, list) { | |
1755 | int r = client->sync_dirty_bitmap(client, start, end); | |
1756 | if (r < 0) | |
1757 | return r; | |
1758 | } | |
1759 | return 0; | |
1760 | } | |
1761 | ||
1762 | static int cpu_notify_migration_log(int enable) | |
1763 | { | |
1764 | CPUPhysMemoryClient *client; | |
1765 | QLIST_FOREACH(client, &memory_client_list, list) { | |
1766 | int r = client->migration_log(client, enable); | |
1767 | if (r < 0) | |
1768 | return r; | |
1769 | } | |
1770 | return 0; | |
1771 | } | |
1772 | ||
2173a75f AW |
1773 | struct last_map { |
1774 | target_phys_addr_t start_addr; | |
1775 | ram_addr_t size; | |
1776 | ram_addr_t phys_offset; | |
1777 | }; | |
1778 | ||
8d4c78e7 AW |
1779 | /* The l1_phys_map provides the upper P_L1_BITs of the guest physical |
1780 | * address. Each intermediate table provides the next L2_BITs of guest | |
1781 | * physical address space. The number of levels vary based on host and | |
1782 | * guest configuration, making it efficient to build the final guest | |
1783 | * physical address by seeding the L1 offset and shifting and adding in | |
1784 | * each L2 offset as we recurse through them. */ | |
2173a75f AW |
1785 | static void phys_page_for_each_1(CPUPhysMemoryClient *client, int level, |
1786 | void **lp, target_phys_addr_t addr, | |
1787 | struct last_map *map) | |
f6f3fbca | 1788 | { |
5cd2c5b6 | 1789 | int i; |
f6f3fbca | 1790 | |
5cd2c5b6 RH |
1791 | if (*lp == NULL) { |
1792 | return; | |
1793 | } | |
1794 | if (level == 0) { | |
1795 | PhysPageDesc *pd = *lp; | |
8d4c78e7 | 1796 | addr <<= L2_BITS + TARGET_PAGE_BITS; |
7296abac | 1797 | for (i = 0; i < L2_SIZE; ++i) { |
5cd2c5b6 | 1798 | if (pd[i].phys_offset != IO_MEM_UNASSIGNED) { |
2173a75f AW |
1799 | target_phys_addr_t start_addr = addr | i << TARGET_PAGE_BITS; |
1800 | ||
1801 | if (map->size && | |
1802 | start_addr == map->start_addr + map->size && | |
1803 | pd[i].phys_offset == map->phys_offset + map->size) { | |
1804 | ||
1805 | map->size += TARGET_PAGE_SIZE; | |
1806 | continue; | |
1807 | } else if (map->size) { | |
1808 | client->set_memory(client, map->start_addr, | |
1809 | map->size, map->phys_offset, false); | |
1810 | } | |
1811 | ||
1812 | map->start_addr = start_addr; | |
1813 | map->size = TARGET_PAGE_SIZE; | |
1814 | map->phys_offset = pd[i].phys_offset; | |
f6f3fbca | 1815 | } |
5cd2c5b6 RH |
1816 | } |
1817 | } else { | |
1818 | void **pp = *lp; | |
7296abac | 1819 | for (i = 0; i < L2_SIZE; ++i) { |
8d4c78e7 | 1820 | phys_page_for_each_1(client, level - 1, pp + i, |
2173a75f | 1821 | (addr << L2_BITS) | i, map); |
f6f3fbca MT |
1822 | } |
1823 | } | |
1824 | } | |
1825 | ||
1826 | static void phys_page_for_each(CPUPhysMemoryClient *client) | |
1827 | { | |
5cd2c5b6 | 1828 | int i; |
2173a75f AW |
1829 | struct last_map map = { }; |
1830 | ||
5cd2c5b6 RH |
1831 | for (i = 0; i < P_L1_SIZE; ++i) { |
1832 | phys_page_for_each_1(client, P_L1_SHIFT / L2_BITS - 1, | |
2173a75f AW |
1833 | l1_phys_map + i, i, &map); |
1834 | } | |
1835 | if (map.size) { | |
1836 | client->set_memory(client, map.start_addr, map.size, map.phys_offset, | |
1837 | false); | |
f6f3fbca | 1838 | } |
f6f3fbca MT |
1839 | } |
1840 | ||
1841 | void cpu_register_phys_memory_client(CPUPhysMemoryClient *client) | |
1842 | { | |
1843 | QLIST_INSERT_HEAD(&memory_client_list, client, list); | |
1844 | phys_page_for_each(client); | |
1845 | } | |
1846 | ||
1847 | void cpu_unregister_phys_memory_client(CPUPhysMemoryClient *client) | |
1848 | { | |
1849 | QLIST_REMOVE(client, list); | |
1850 | } | |
1851 | #endif | |
1852 | ||
f193c797 FB |
1853 | static int cmp1(const char *s1, int n, const char *s2) |
1854 | { | |
1855 | if (strlen(s2) != n) | |
1856 | return 0; | |
1857 | return memcmp(s1, s2, n) == 0; | |
1858 | } | |
3b46e624 | 1859 | |
f193c797 FB |
1860 | /* takes a comma separated list of log masks. Return 0 if error. */ |
1861 | int cpu_str_to_log_mask(const char *str) | |
1862 | { | |
c7cd6a37 | 1863 | const CPULogItem *item; |
f193c797 FB |
1864 | int mask; |
1865 | const char *p, *p1; | |
1866 | ||
1867 | p = str; | |
1868 | mask = 0; | |
1869 | for(;;) { | |
1870 | p1 = strchr(p, ','); | |
1871 | if (!p1) | |
1872 | p1 = p + strlen(p); | |
9742bf26 YT |
1873 | if(cmp1(p,p1-p,"all")) { |
1874 | for(item = cpu_log_items; item->mask != 0; item++) { | |
1875 | mask |= item->mask; | |
1876 | } | |
1877 | } else { | |
1878 | for(item = cpu_log_items; item->mask != 0; item++) { | |
1879 | if (cmp1(p, p1 - p, item->name)) | |
1880 | goto found; | |
1881 | } | |
1882 | return 0; | |
f193c797 | 1883 | } |
f193c797 FB |
1884 | found: |
1885 | mask |= item->mask; | |
1886 | if (*p1 != ',') | |
1887 | break; | |
1888 | p = p1 + 1; | |
1889 | } | |
1890 | return mask; | |
1891 | } | |
ea041c0e | 1892 | |
7501267e FB |
1893 | void cpu_abort(CPUState *env, const char *fmt, ...) |
1894 | { | |
1895 | va_list ap; | |
493ae1f0 | 1896 | va_list ap2; |
7501267e FB |
1897 | |
1898 | va_start(ap, fmt); | |
493ae1f0 | 1899 | va_copy(ap2, ap); |
7501267e FB |
1900 | fprintf(stderr, "qemu: fatal: "); |
1901 | vfprintf(stderr, fmt, ap); | |
1902 | fprintf(stderr, "\n"); | |
1903 | #ifdef TARGET_I386 | |
7fe48483 FB |
1904 | cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU | X86_DUMP_CCOP); |
1905 | #else | |
1906 | cpu_dump_state(env, stderr, fprintf, 0); | |
7501267e | 1907 | #endif |
93fcfe39 AL |
1908 | if (qemu_log_enabled()) { |
1909 | qemu_log("qemu: fatal: "); | |
1910 | qemu_log_vprintf(fmt, ap2); | |
1911 | qemu_log("\n"); | |
f9373291 | 1912 | #ifdef TARGET_I386 |
93fcfe39 | 1913 | log_cpu_state(env, X86_DUMP_FPU | X86_DUMP_CCOP); |
f9373291 | 1914 | #else |
93fcfe39 | 1915 | log_cpu_state(env, 0); |
f9373291 | 1916 | #endif |
31b1a7b4 | 1917 | qemu_log_flush(); |
93fcfe39 | 1918 | qemu_log_close(); |
924edcae | 1919 | } |
493ae1f0 | 1920 | va_end(ap2); |
f9373291 | 1921 | va_end(ap); |
fd052bf6 RV |
1922 | #if defined(CONFIG_USER_ONLY) |
1923 | { | |
1924 | struct sigaction act; | |
1925 | sigfillset(&act.sa_mask); | |
1926 | act.sa_handler = SIG_DFL; | |
1927 | sigaction(SIGABRT, &act, NULL); | |
1928 | } | |
1929 | #endif | |
7501267e FB |
1930 | abort(); |
1931 | } | |
1932 | ||
c5be9f08 TS |
1933 | CPUState *cpu_copy(CPUState *env) |
1934 | { | |
01ba9816 | 1935 | CPUState *new_env = cpu_init(env->cpu_model_str); |
c5be9f08 TS |
1936 | CPUState *next_cpu = new_env->next_cpu; |
1937 | int cpu_index = new_env->cpu_index; | |
5a38f081 AL |
1938 | #if defined(TARGET_HAS_ICE) |
1939 | CPUBreakpoint *bp; | |
1940 | CPUWatchpoint *wp; | |
1941 | #endif | |
1942 | ||
c5be9f08 | 1943 | memcpy(new_env, env, sizeof(CPUState)); |
5a38f081 AL |
1944 | |
1945 | /* Preserve chaining and index. */ | |
c5be9f08 TS |
1946 | new_env->next_cpu = next_cpu; |
1947 | new_env->cpu_index = cpu_index; | |
5a38f081 AL |
1948 | |
1949 | /* Clone all break/watchpoints. | |
1950 | Note: Once we support ptrace with hw-debug register access, make sure | |
1951 | BP_CPU break/watchpoints are handled correctly on clone. */ | |
72cf2d4f BS |
1952 | QTAILQ_INIT(&env->breakpoints); |
1953 | QTAILQ_INIT(&env->watchpoints); | |
5a38f081 | 1954 | #if defined(TARGET_HAS_ICE) |
72cf2d4f | 1955 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
5a38f081 AL |
1956 | cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL); |
1957 | } | |
72cf2d4f | 1958 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
5a38f081 AL |
1959 | cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1, |
1960 | wp->flags, NULL); | |
1961 | } | |
1962 | #endif | |
1963 | ||
c5be9f08 TS |
1964 | return new_env; |
1965 | } | |
1966 | ||
0124311e FB |
1967 | #if !defined(CONFIG_USER_ONLY) |
1968 | ||
5c751e99 EI |
1969 | static inline void tlb_flush_jmp_cache(CPUState *env, target_ulong addr) |
1970 | { | |
1971 | unsigned int i; | |
1972 | ||
1973 | /* Discard jump cache entries for any tb which might potentially | |
1974 | overlap the flushed page. */ | |
1975 | i = tb_jmp_cache_hash_page(addr - TARGET_PAGE_SIZE); | |
1976 | memset (&env->tb_jmp_cache[i], 0, | |
9742bf26 | 1977 | TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *)); |
5c751e99 EI |
1978 | |
1979 | i = tb_jmp_cache_hash_page(addr); | |
1980 | memset (&env->tb_jmp_cache[i], 0, | |
9742bf26 | 1981 | TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *)); |
5c751e99 EI |
1982 | } |
1983 | ||
08738984 IK |
1984 | static CPUTLBEntry s_cputlb_empty_entry = { |
1985 | .addr_read = -1, | |
1986 | .addr_write = -1, | |
1987 | .addr_code = -1, | |
1988 | .addend = -1, | |
1989 | }; | |
1990 | ||
ee8b7021 FB |
1991 | /* NOTE: if flush_global is true, also flush global entries (not |
1992 | implemented yet) */ | |
1993 | void tlb_flush(CPUState *env, int flush_global) | |
33417e70 | 1994 | { |
33417e70 | 1995 | int i; |
0124311e | 1996 | |
9fa3e853 FB |
1997 | #if defined(DEBUG_TLB) |
1998 | printf("tlb_flush:\n"); | |
1999 | #endif | |
0124311e FB |
2000 | /* must reset current TB so that interrupts cannot modify the |
2001 | links while we are modifying them */ | |
2002 | env->current_tb = NULL; | |
2003 | ||
33417e70 | 2004 | for(i = 0; i < CPU_TLB_SIZE; i++) { |
cfde4bd9 IY |
2005 | int mmu_idx; |
2006 | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { | |
08738984 | 2007 | env->tlb_table[mmu_idx][i] = s_cputlb_empty_entry; |
cfde4bd9 | 2008 | } |
33417e70 | 2009 | } |
9fa3e853 | 2010 | |
8a40a180 | 2011 | memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *)); |
9fa3e853 | 2012 | |
d4c430a8 PB |
2013 | env->tlb_flush_addr = -1; |
2014 | env->tlb_flush_mask = 0; | |
e3db7226 | 2015 | tlb_flush_count++; |
33417e70 FB |
2016 | } |
2017 | ||
274da6b2 | 2018 | static inline void tlb_flush_entry(CPUTLBEntry *tlb_entry, target_ulong addr) |
61382a50 | 2019 | { |
5fafdf24 | 2020 | if (addr == (tlb_entry->addr_read & |
84b7b8e7 | 2021 | (TARGET_PAGE_MASK | TLB_INVALID_MASK)) || |
5fafdf24 | 2022 | addr == (tlb_entry->addr_write & |
84b7b8e7 | 2023 | (TARGET_PAGE_MASK | TLB_INVALID_MASK)) || |
5fafdf24 | 2024 | addr == (tlb_entry->addr_code & |
84b7b8e7 | 2025 | (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { |
08738984 | 2026 | *tlb_entry = s_cputlb_empty_entry; |
84b7b8e7 | 2027 | } |
61382a50 FB |
2028 | } |
2029 | ||
2e12669a | 2030 | void tlb_flush_page(CPUState *env, target_ulong addr) |
33417e70 | 2031 | { |
8a40a180 | 2032 | int i; |
cfde4bd9 | 2033 | int mmu_idx; |
0124311e | 2034 | |
9fa3e853 | 2035 | #if defined(DEBUG_TLB) |
108c49b8 | 2036 | printf("tlb_flush_page: " TARGET_FMT_lx "\n", addr); |
9fa3e853 | 2037 | #endif |
d4c430a8 PB |
2038 | /* Check if we need to flush due to large pages. */ |
2039 | if ((addr & env->tlb_flush_mask) == env->tlb_flush_addr) { | |
2040 | #if defined(DEBUG_TLB) | |
2041 | printf("tlb_flush_page: forced full flush (" | |
2042 | TARGET_FMT_lx "/" TARGET_FMT_lx ")\n", | |
2043 | env->tlb_flush_addr, env->tlb_flush_mask); | |
2044 | #endif | |
2045 | tlb_flush(env, 1); | |
2046 | return; | |
2047 | } | |
0124311e FB |
2048 | /* must reset current TB so that interrupts cannot modify the |
2049 | links while we are modifying them */ | |
2050 | env->current_tb = NULL; | |
61382a50 FB |
2051 | |
2052 | addr &= TARGET_PAGE_MASK; | |
2053 | i = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); | |
cfde4bd9 IY |
2054 | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) |
2055 | tlb_flush_entry(&env->tlb_table[mmu_idx][i], addr); | |
0124311e | 2056 | |
5c751e99 | 2057 | tlb_flush_jmp_cache(env, addr); |
9fa3e853 FB |
2058 | } |
2059 | ||
9fa3e853 FB |
2060 | /* update the TLBs so that writes to code in the virtual page 'addr' |
2061 | can be detected */ | |
c227f099 | 2062 | static void tlb_protect_code(ram_addr_t ram_addr) |
9fa3e853 | 2063 | { |
5fafdf24 | 2064 | cpu_physical_memory_reset_dirty(ram_addr, |
6a00d601 FB |
2065 | ram_addr + TARGET_PAGE_SIZE, |
2066 | CODE_DIRTY_FLAG); | |
9fa3e853 FB |
2067 | } |
2068 | ||
9fa3e853 | 2069 | /* update the TLB so that writes in physical page 'phys_addr' are no longer |
3a7d929e | 2070 | tested for self modifying code */ |
c227f099 | 2071 | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, |
3a7d929e | 2072 | target_ulong vaddr) |
9fa3e853 | 2073 | { |
f7c11b53 | 2074 | cpu_physical_memory_set_dirty_flags(ram_addr, CODE_DIRTY_FLAG); |
1ccde1cb FB |
2075 | } |
2076 | ||
5fafdf24 | 2077 | static inline void tlb_reset_dirty_range(CPUTLBEntry *tlb_entry, |
1ccde1cb FB |
2078 | unsigned long start, unsigned long length) |
2079 | { | |
2080 | unsigned long addr; | |
84b7b8e7 FB |
2081 | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) { |
2082 | addr = (tlb_entry->addr_write & TARGET_PAGE_MASK) + tlb_entry->addend; | |
1ccde1cb | 2083 | if ((addr - start) < length) { |
0f459d16 | 2084 | tlb_entry->addr_write = (tlb_entry->addr_write & TARGET_PAGE_MASK) | TLB_NOTDIRTY; |
1ccde1cb FB |
2085 | } |
2086 | } | |
2087 | } | |
2088 | ||
5579c7f3 | 2089 | /* Note: start and end must be within the same ram block. */ |
c227f099 | 2090 | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end, |
0a962c02 | 2091 | int dirty_flags) |
1ccde1cb FB |
2092 | { |
2093 | CPUState *env; | |
4f2ac237 | 2094 | unsigned long length, start1; |
f7c11b53 | 2095 | int i; |
1ccde1cb FB |
2096 | |
2097 | start &= TARGET_PAGE_MASK; | |
2098 | end = TARGET_PAGE_ALIGN(end); | |
2099 | ||
2100 | length = end - start; | |
2101 | if (length == 0) | |
2102 | return; | |
f7c11b53 | 2103 | cpu_physical_memory_mask_dirty_range(start, length, dirty_flags); |
f23db169 | 2104 | |
1ccde1cb FB |
2105 | /* we modify the TLB cache so that the dirty bit will be set again |
2106 | when accessing the range */ | |
b2e0a138 | 2107 | start1 = (unsigned long)qemu_safe_ram_ptr(start); |
a57d23e4 | 2108 | /* Check that we don't span multiple blocks - this breaks the |
5579c7f3 | 2109 | address comparisons below. */ |
b2e0a138 | 2110 | if ((unsigned long)qemu_safe_ram_ptr(end - 1) - start1 |
5579c7f3 PB |
2111 | != (end - 1) - start) { |
2112 | abort(); | |
2113 | } | |
2114 | ||
6a00d601 | 2115 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
cfde4bd9 IY |
2116 | int mmu_idx; |
2117 | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { | |
2118 | for(i = 0; i < CPU_TLB_SIZE; i++) | |
2119 | tlb_reset_dirty_range(&env->tlb_table[mmu_idx][i], | |
2120 | start1, length); | |
2121 | } | |
6a00d601 | 2122 | } |
1ccde1cb FB |
2123 | } |
2124 | ||
74576198 AL |
2125 | int cpu_physical_memory_set_dirty_tracking(int enable) |
2126 | { | |
f6f3fbca | 2127 | int ret = 0; |
74576198 | 2128 | in_migration = enable; |
f6f3fbca MT |
2129 | ret = cpu_notify_migration_log(!!enable); |
2130 | return ret; | |
74576198 AL |
2131 | } |
2132 | ||
2133 | int cpu_physical_memory_get_dirty_tracking(void) | |
2134 | { | |
2135 | return in_migration; | |
2136 | } | |
2137 | ||
c227f099 AL |
2138 | int cpu_physical_sync_dirty_bitmap(target_phys_addr_t start_addr, |
2139 | target_phys_addr_t end_addr) | |
2bec46dc | 2140 | { |
7b8f3b78 | 2141 | int ret; |
151f7749 | 2142 | |
f6f3fbca | 2143 | ret = cpu_notify_sync_dirty_bitmap(start_addr, end_addr); |
151f7749 | 2144 | return ret; |
2bec46dc AL |
2145 | } |
2146 | ||
e5896b12 AP |
2147 | int cpu_physical_log_start(target_phys_addr_t start_addr, |
2148 | ram_addr_t size) | |
2149 | { | |
2150 | CPUPhysMemoryClient *client; | |
2151 | QLIST_FOREACH(client, &memory_client_list, list) { | |
2152 | if (client->log_start) { | |
2153 | int r = client->log_start(client, start_addr, size); | |
2154 | if (r < 0) { | |
2155 | return r; | |
2156 | } | |
2157 | } | |
2158 | } | |
2159 | return 0; | |
2160 | } | |
2161 | ||
2162 | int cpu_physical_log_stop(target_phys_addr_t start_addr, | |
2163 | ram_addr_t size) | |
2164 | { | |
2165 | CPUPhysMemoryClient *client; | |
2166 | QLIST_FOREACH(client, &memory_client_list, list) { | |
2167 | if (client->log_stop) { | |
2168 | int r = client->log_stop(client, start_addr, size); | |
2169 | if (r < 0) { | |
2170 | return r; | |
2171 | } | |
2172 | } | |
2173 | } | |
2174 | return 0; | |
2175 | } | |
2176 | ||
3a7d929e FB |
2177 | static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry) |
2178 | { | |
c227f099 | 2179 | ram_addr_t ram_addr; |
5579c7f3 | 2180 | void *p; |
3a7d929e | 2181 | |
84b7b8e7 | 2182 | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) { |
5579c7f3 PB |
2183 | p = (void *)(unsigned long)((tlb_entry->addr_write & TARGET_PAGE_MASK) |
2184 | + tlb_entry->addend); | |
e890261f | 2185 | ram_addr = qemu_ram_addr_from_host_nofail(p); |
3a7d929e | 2186 | if (!cpu_physical_memory_is_dirty(ram_addr)) { |
0f459d16 | 2187 | tlb_entry->addr_write |= TLB_NOTDIRTY; |
3a7d929e FB |
2188 | } |
2189 | } | |
2190 | } | |
2191 | ||
2192 | /* update the TLB according to the current state of the dirty bits */ | |
2193 | void cpu_tlb_update_dirty(CPUState *env) | |
2194 | { | |
2195 | int i; | |
cfde4bd9 IY |
2196 | int mmu_idx; |
2197 | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { | |
2198 | for(i = 0; i < CPU_TLB_SIZE; i++) | |
2199 | tlb_update_dirty(&env->tlb_table[mmu_idx][i]); | |
2200 | } | |
3a7d929e FB |
2201 | } |
2202 | ||
0f459d16 | 2203 | static inline void tlb_set_dirty1(CPUTLBEntry *tlb_entry, target_ulong vaddr) |
1ccde1cb | 2204 | { |
0f459d16 PB |
2205 | if (tlb_entry->addr_write == (vaddr | TLB_NOTDIRTY)) |
2206 | tlb_entry->addr_write = vaddr; | |
1ccde1cb FB |
2207 | } |
2208 | ||
0f459d16 PB |
2209 | /* update the TLB corresponding to virtual page vaddr |
2210 | so that it is no longer dirty */ | |
2211 | static inline void tlb_set_dirty(CPUState *env, target_ulong vaddr) | |
1ccde1cb | 2212 | { |
1ccde1cb | 2213 | int i; |
cfde4bd9 | 2214 | int mmu_idx; |
1ccde1cb | 2215 | |
0f459d16 | 2216 | vaddr &= TARGET_PAGE_MASK; |
1ccde1cb | 2217 | i = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); |
cfde4bd9 IY |
2218 | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) |
2219 | tlb_set_dirty1(&env->tlb_table[mmu_idx][i], vaddr); | |
9fa3e853 FB |
2220 | } |
2221 | ||
d4c430a8 PB |
2222 | /* Our TLB does not support large pages, so remember the area covered by |
2223 | large pages and trigger a full TLB flush if these are invalidated. */ | |
2224 | static void tlb_add_large_page(CPUState *env, target_ulong vaddr, | |
2225 | target_ulong size) | |
2226 | { | |
2227 | target_ulong mask = ~(size - 1); | |
2228 | ||
2229 | if (env->tlb_flush_addr == (target_ulong)-1) { | |
2230 | env->tlb_flush_addr = vaddr & mask; | |
2231 | env->tlb_flush_mask = mask; | |
2232 | return; | |
2233 | } | |
2234 | /* Extend the existing region to include the new page. | |
2235 | This is a compromise between unnecessary flushes and the cost | |
2236 | of maintaining a full variable size TLB. */ | |
2237 | mask &= env->tlb_flush_mask; | |
2238 | while (((env->tlb_flush_addr ^ vaddr) & mask) != 0) { | |
2239 | mask <<= 1; | |
2240 | } | |
2241 | env->tlb_flush_addr &= mask; | |
2242 | env->tlb_flush_mask = mask; | |
2243 | } | |
2244 | ||
2245 | /* Add a new TLB entry. At most one entry for a given virtual address | |
2246 | is permitted. Only a single TARGET_PAGE_SIZE region is mapped, the | |
2247 | supplied size is only used by tlb_flush_page. */ | |
2248 | void tlb_set_page(CPUState *env, target_ulong vaddr, | |
2249 | target_phys_addr_t paddr, int prot, | |
2250 | int mmu_idx, target_ulong size) | |
9fa3e853 | 2251 | { |
92e873b9 | 2252 | PhysPageDesc *p; |
4f2ac237 | 2253 | unsigned long pd; |
9fa3e853 | 2254 | unsigned int index; |
4f2ac237 | 2255 | target_ulong address; |
0f459d16 | 2256 | target_ulong code_address; |
355b1943 | 2257 | unsigned long addend; |
84b7b8e7 | 2258 | CPUTLBEntry *te; |
a1d1bb31 | 2259 | CPUWatchpoint *wp; |
c227f099 | 2260 | target_phys_addr_t iotlb; |
9fa3e853 | 2261 | |
d4c430a8 PB |
2262 | assert(size >= TARGET_PAGE_SIZE); |
2263 | if (size != TARGET_PAGE_SIZE) { | |
2264 | tlb_add_large_page(env, vaddr, size); | |
2265 | } | |
92e873b9 | 2266 | p = phys_page_find(paddr >> TARGET_PAGE_BITS); |
9fa3e853 FB |
2267 | if (!p) { |
2268 | pd = IO_MEM_UNASSIGNED; | |
9fa3e853 FB |
2269 | } else { |
2270 | pd = p->phys_offset; | |
9fa3e853 FB |
2271 | } |
2272 | #if defined(DEBUG_TLB) | |
7fd3f494 SW |
2273 | printf("tlb_set_page: vaddr=" TARGET_FMT_lx " paddr=0x" TARGET_FMT_plx |
2274 | " prot=%x idx=%d pd=0x%08lx\n", | |
2275 | vaddr, paddr, prot, mmu_idx, pd); | |
9fa3e853 FB |
2276 | #endif |
2277 | ||
0f459d16 PB |
2278 | address = vaddr; |
2279 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) { | |
2280 | /* IO memory case (romd handled later) */ | |
2281 | address |= TLB_MMIO; | |
2282 | } | |
5579c7f3 | 2283 | addend = (unsigned long)qemu_get_ram_ptr(pd & TARGET_PAGE_MASK); |
0f459d16 PB |
2284 | if ((pd & ~TARGET_PAGE_MASK) <= IO_MEM_ROM) { |
2285 | /* Normal RAM. */ | |
2286 | iotlb = pd & TARGET_PAGE_MASK; | |
2287 | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM) | |
2288 | iotlb |= IO_MEM_NOTDIRTY; | |
2289 | else | |
2290 | iotlb |= IO_MEM_ROM; | |
2291 | } else { | |
ccbb4d44 | 2292 | /* IO handlers are currently passed a physical address. |
0f459d16 PB |
2293 | It would be nice to pass an offset from the base address |
2294 | of that region. This would avoid having to special case RAM, | |
2295 | and avoid full address decoding in every device. | |
2296 | We can't use the high bits of pd for this because | |
2297 | IO_MEM_ROMD uses these as a ram address. */ | |
8da3ff18 PB |
2298 | iotlb = (pd & ~TARGET_PAGE_MASK); |
2299 | if (p) { | |
8da3ff18 PB |
2300 | iotlb += p->region_offset; |
2301 | } else { | |
2302 | iotlb += paddr; | |
2303 | } | |
0f459d16 PB |
2304 | } |
2305 | ||
2306 | code_address = address; | |
2307 | /* Make accesses to pages with watchpoints go via the | |
2308 | watchpoint trap routines. */ | |
72cf2d4f | 2309 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
a1d1bb31 | 2310 | if (vaddr == (wp->vaddr & TARGET_PAGE_MASK)) { |
bf298f83 JK |
2311 | /* Avoid trapping reads of pages with a write breakpoint. */ |
2312 | if ((prot & PAGE_WRITE) || (wp->flags & BP_MEM_READ)) { | |
2313 | iotlb = io_mem_watch + paddr; | |
2314 | address |= TLB_MMIO; | |
2315 | break; | |
2316 | } | |
6658ffb8 | 2317 | } |
0f459d16 | 2318 | } |
d79acba4 | 2319 | |
0f459d16 PB |
2320 | index = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); |
2321 | env->iotlb[mmu_idx][index] = iotlb - vaddr; | |
2322 | te = &env->tlb_table[mmu_idx][index]; | |
2323 | te->addend = addend - vaddr; | |
2324 | if (prot & PAGE_READ) { | |
2325 | te->addr_read = address; | |
2326 | } else { | |
2327 | te->addr_read = -1; | |
2328 | } | |
5c751e99 | 2329 | |
0f459d16 PB |
2330 | if (prot & PAGE_EXEC) { |
2331 | te->addr_code = code_address; | |
2332 | } else { | |
2333 | te->addr_code = -1; | |
2334 | } | |
2335 | if (prot & PAGE_WRITE) { | |
2336 | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_ROM || | |
2337 | (pd & IO_MEM_ROMD)) { | |
2338 | /* Write access calls the I/O callback. */ | |
2339 | te->addr_write = address | TLB_MMIO; | |
2340 | } else if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM && | |
2341 | !cpu_physical_memory_is_dirty(pd)) { | |
2342 | te->addr_write = address | TLB_NOTDIRTY; | |
9fa3e853 | 2343 | } else { |
0f459d16 | 2344 | te->addr_write = address; |
9fa3e853 | 2345 | } |
0f459d16 PB |
2346 | } else { |
2347 | te->addr_write = -1; | |
9fa3e853 | 2348 | } |
9fa3e853 FB |
2349 | } |
2350 | ||
0124311e FB |
2351 | #else |
2352 | ||
ee8b7021 | 2353 | void tlb_flush(CPUState *env, int flush_global) |
0124311e FB |
2354 | { |
2355 | } | |
2356 | ||
2e12669a | 2357 | void tlb_flush_page(CPUState *env, target_ulong addr) |
0124311e FB |
2358 | { |
2359 | } | |
2360 | ||
edf8e2af MW |
2361 | /* |
2362 | * Walks guest process memory "regions" one by one | |
2363 | * and calls callback function 'fn' for each region. | |
2364 | */ | |
5cd2c5b6 RH |
2365 | |
2366 | struct walk_memory_regions_data | |
2367 | { | |
2368 | walk_memory_regions_fn fn; | |
2369 | void *priv; | |
2370 | unsigned long start; | |
2371 | int prot; | |
2372 | }; | |
2373 | ||
2374 | static int walk_memory_regions_end(struct walk_memory_regions_data *data, | |
b480d9b7 | 2375 | abi_ulong end, int new_prot) |
5cd2c5b6 RH |
2376 | { |
2377 | if (data->start != -1ul) { | |
2378 | int rc = data->fn(data->priv, data->start, end, data->prot); | |
2379 | if (rc != 0) { | |
2380 | return rc; | |
2381 | } | |
2382 | } | |
2383 | ||
2384 | data->start = (new_prot ? end : -1ul); | |
2385 | data->prot = new_prot; | |
2386 | ||
2387 | return 0; | |
2388 | } | |
2389 | ||
2390 | static int walk_memory_regions_1(struct walk_memory_regions_data *data, | |
b480d9b7 | 2391 | abi_ulong base, int level, void **lp) |
5cd2c5b6 | 2392 | { |
b480d9b7 | 2393 | abi_ulong pa; |
5cd2c5b6 RH |
2394 | int i, rc; |
2395 | ||
2396 | if (*lp == NULL) { | |
2397 | return walk_memory_regions_end(data, base, 0); | |
2398 | } | |
2399 | ||
2400 | if (level == 0) { | |
2401 | PageDesc *pd = *lp; | |
7296abac | 2402 | for (i = 0; i < L2_SIZE; ++i) { |
5cd2c5b6 RH |
2403 | int prot = pd[i].flags; |
2404 | ||
2405 | pa = base | (i << TARGET_PAGE_BITS); | |
2406 | if (prot != data->prot) { | |
2407 | rc = walk_memory_regions_end(data, pa, prot); | |
2408 | if (rc != 0) { | |
2409 | return rc; | |
9fa3e853 | 2410 | } |
9fa3e853 | 2411 | } |
5cd2c5b6 RH |
2412 | } |
2413 | } else { | |
2414 | void **pp = *lp; | |
7296abac | 2415 | for (i = 0; i < L2_SIZE; ++i) { |
b480d9b7 PB |
2416 | pa = base | ((abi_ulong)i << |
2417 | (TARGET_PAGE_BITS + L2_BITS * level)); | |
5cd2c5b6 RH |
2418 | rc = walk_memory_regions_1(data, pa, level - 1, pp + i); |
2419 | if (rc != 0) { | |
2420 | return rc; | |
2421 | } | |
2422 | } | |
2423 | } | |
2424 | ||
2425 | return 0; | |
2426 | } | |
2427 | ||
2428 | int walk_memory_regions(void *priv, walk_memory_regions_fn fn) | |
2429 | { | |
2430 | struct walk_memory_regions_data data; | |
2431 | unsigned long i; | |
2432 | ||
2433 | data.fn = fn; | |
2434 | data.priv = priv; | |
2435 | data.start = -1ul; | |
2436 | data.prot = 0; | |
2437 | ||
2438 | for (i = 0; i < V_L1_SIZE; i++) { | |
b480d9b7 | 2439 | int rc = walk_memory_regions_1(&data, (abi_ulong)i << V_L1_SHIFT, |
5cd2c5b6 RH |
2440 | V_L1_SHIFT / L2_BITS - 1, l1_map + i); |
2441 | if (rc != 0) { | |
2442 | return rc; | |
9fa3e853 | 2443 | } |
33417e70 | 2444 | } |
5cd2c5b6 RH |
2445 | |
2446 | return walk_memory_regions_end(&data, 0, 0); | |
edf8e2af MW |
2447 | } |
2448 | ||
b480d9b7 PB |
2449 | static int dump_region(void *priv, abi_ulong start, |
2450 | abi_ulong end, unsigned long prot) | |
edf8e2af MW |
2451 | { |
2452 | FILE *f = (FILE *)priv; | |
2453 | ||
b480d9b7 PB |
2454 | (void) fprintf(f, TARGET_ABI_FMT_lx"-"TARGET_ABI_FMT_lx |
2455 | " "TARGET_ABI_FMT_lx" %c%c%c\n", | |
edf8e2af MW |
2456 | start, end, end - start, |
2457 | ((prot & PAGE_READ) ? 'r' : '-'), | |
2458 | ((prot & PAGE_WRITE) ? 'w' : '-'), | |
2459 | ((prot & PAGE_EXEC) ? 'x' : '-')); | |
2460 | ||
2461 | return (0); | |
2462 | } | |
2463 | ||
2464 | /* dump memory mappings */ | |
2465 | void page_dump(FILE *f) | |
2466 | { | |
2467 | (void) fprintf(f, "%-8s %-8s %-8s %s\n", | |
2468 | "start", "end", "size", "prot"); | |
2469 | walk_memory_regions(f, dump_region); | |
33417e70 FB |
2470 | } |
2471 | ||
53a5960a | 2472 | int page_get_flags(target_ulong address) |
33417e70 | 2473 | { |
9fa3e853 FB |
2474 | PageDesc *p; |
2475 | ||
2476 | p = page_find(address >> TARGET_PAGE_BITS); | |
33417e70 | 2477 | if (!p) |
9fa3e853 FB |
2478 | return 0; |
2479 | return p->flags; | |
2480 | } | |
2481 | ||
376a7909 RH |
2482 | /* Modify the flags of a page and invalidate the code if necessary. |
2483 | The flag PAGE_WRITE_ORG is positioned automatically depending | |
2484 | on PAGE_WRITE. The mmap_lock should already be held. */ | |
53a5960a | 2485 | void page_set_flags(target_ulong start, target_ulong end, int flags) |
9fa3e853 | 2486 | { |
376a7909 RH |
2487 | target_ulong addr, len; |
2488 | ||
2489 | /* This function should never be called with addresses outside the | |
2490 | guest address space. If this assert fires, it probably indicates | |
2491 | a missing call to h2g_valid. */ | |
b480d9b7 PB |
2492 | #if TARGET_ABI_BITS > L1_MAP_ADDR_SPACE_BITS |
2493 | assert(end < ((abi_ulong)1 << L1_MAP_ADDR_SPACE_BITS)); | |
376a7909 RH |
2494 | #endif |
2495 | assert(start < end); | |
9fa3e853 FB |
2496 | |
2497 | start = start & TARGET_PAGE_MASK; | |
2498 | end = TARGET_PAGE_ALIGN(end); | |
376a7909 RH |
2499 | |
2500 | if (flags & PAGE_WRITE) { | |
9fa3e853 | 2501 | flags |= PAGE_WRITE_ORG; |
376a7909 RH |
2502 | } |
2503 | ||
2504 | for (addr = start, len = end - start; | |
2505 | len != 0; | |
2506 | len -= TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) { | |
2507 | PageDesc *p = page_find_alloc(addr >> TARGET_PAGE_BITS, 1); | |
2508 | ||
2509 | /* If the write protection bit is set, then we invalidate | |
2510 | the code inside. */ | |
5fafdf24 | 2511 | if (!(p->flags & PAGE_WRITE) && |
9fa3e853 FB |
2512 | (flags & PAGE_WRITE) && |
2513 | p->first_tb) { | |
d720b93d | 2514 | tb_invalidate_phys_page(addr, 0, NULL); |
9fa3e853 FB |
2515 | } |
2516 | p->flags = flags; | |
2517 | } | |
33417e70 FB |
2518 | } |
2519 | ||
3d97b40b TS |
2520 | int page_check_range(target_ulong start, target_ulong len, int flags) |
2521 | { | |
2522 | PageDesc *p; | |
2523 | target_ulong end; | |
2524 | target_ulong addr; | |
2525 | ||
376a7909 RH |
2526 | /* This function should never be called with addresses outside the |
2527 | guest address space. If this assert fires, it probably indicates | |
2528 | a missing call to h2g_valid. */ | |
338e9e6c BS |
2529 | #if TARGET_ABI_BITS > L1_MAP_ADDR_SPACE_BITS |
2530 | assert(start < ((abi_ulong)1 << L1_MAP_ADDR_SPACE_BITS)); | |
376a7909 RH |
2531 | #endif |
2532 | ||
3e0650a9 RH |
2533 | if (len == 0) { |
2534 | return 0; | |
2535 | } | |
376a7909 RH |
2536 | if (start + len - 1 < start) { |
2537 | /* We've wrapped around. */ | |
55f280c9 | 2538 | return -1; |
376a7909 | 2539 | } |
55f280c9 | 2540 | |
3d97b40b TS |
2541 | end = TARGET_PAGE_ALIGN(start+len); /* must do before we loose bits in the next step */ |
2542 | start = start & TARGET_PAGE_MASK; | |
2543 | ||
376a7909 RH |
2544 | for (addr = start, len = end - start; |
2545 | len != 0; | |
2546 | len -= TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) { | |
3d97b40b TS |
2547 | p = page_find(addr >> TARGET_PAGE_BITS); |
2548 | if( !p ) | |
2549 | return -1; | |
2550 | if( !(p->flags & PAGE_VALID) ) | |
2551 | return -1; | |
2552 | ||
dae3270c | 2553 | if ((flags & PAGE_READ) && !(p->flags & PAGE_READ)) |
3d97b40b | 2554 | return -1; |
dae3270c FB |
2555 | if (flags & PAGE_WRITE) { |
2556 | if (!(p->flags & PAGE_WRITE_ORG)) | |
2557 | return -1; | |
2558 | /* unprotect the page if it was put read-only because it | |
2559 | contains translated code */ | |
2560 | if (!(p->flags & PAGE_WRITE)) { | |
2561 | if (!page_unprotect(addr, 0, NULL)) | |
2562 | return -1; | |
2563 | } | |
2564 | return 0; | |
2565 | } | |
3d97b40b TS |
2566 | } |
2567 | return 0; | |
2568 | } | |
2569 | ||
9fa3e853 | 2570 | /* called from signal handler: invalidate the code and unprotect the |
ccbb4d44 | 2571 | page. Return TRUE if the fault was successfully handled. */ |
53a5960a | 2572 | int page_unprotect(target_ulong address, unsigned long pc, void *puc) |
9fa3e853 | 2573 | { |
45d679d6 AJ |
2574 | unsigned int prot; |
2575 | PageDesc *p; | |
53a5960a | 2576 | target_ulong host_start, host_end, addr; |
9fa3e853 | 2577 | |
c8a706fe PB |
2578 | /* Technically this isn't safe inside a signal handler. However we |
2579 | know this only ever happens in a synchronous SEGV handler, so in | |
2580 | practice it seems to be ok. */ | |
2581 | mmap_lock(); | |
2582 | ||
45d679d6 AJ |
2583 | p = page_find(address >> TARGET_PAGE_BITS); |
2584 | if (!p) { | |
c8a706fe | 2585 | mmap_unlock(); |
9fa3e853 | 2586 | return 0; |
c8a706fe | 2587 | } |
45d679d6 | 2588 | |
9fa3e853 FB |
2589 | /* if the page was really writable, then we change its |
2590 | protection back to writable */ | |
45d679d6 AJ |
2591 | if ((p->flags & PAGE_WRITE_ORG) && !(p->flags & PAGE_WRITE)) { |
2592 | host_start = address & qemu_host_page_mask; | |
2593 | host_end = host_start + qemu_host_page_size; | |
2594 | ||
2595 | prot = 0; | |
2596 | for (addr = host_start ; addr < host_end ; addr += TARGET_PAGE_SIZE) { | |
2597 | p = page_find(addr >> TARGET_PAGE_BITS); | |
2598 | p->flags |= PAGE_WRITE; | |
2599 | prot |= p->flags; | |
2600 | ||
9fa3e853 FB |
2601 | /* and since the content will be modified, we must invalidate |
2602 | the corresponding translated code. */ | |
45d679d6 | 2603 | tb_invalidate_phys_page(addr, pc, puc); |
9fa3e853 | 2604 | #ifdef DEBUG_TB_CHECK |
45d679d6 | 2605 | tb_invalidate_check(addr); |
9fa3e853 | 2606 | #endif |
9fa3e853 | 2607 | } |
45d679d6 AJ |
2608 | mprotect((void *)g2h(host_start), qemu_host_page_size, |
2609 | prot & PAGE_BITS); | |
2610 | ||
2611 | mmap_unlock(); | |
2612 | return 1; | |
9fa3e853 | 2613 | } |
c8a706fe | 2614 | mmap_unlock(); |
9fa3e853 FB |
2615 | return 0; |
2616 | } | |
2617 | ||
6a00d601 FB |
2618 | static inline void tlb_set_dirty(CPUState *env, |
2619 | unsigned long addr, target_ulong vaddr) | |
1ccde1cb FB |
2620 | { |
2621 | } | |
9fa3e853 FB |
2622 | #endif /* defined(CONFIG_USER_ONLY) */ |
2623 | ||
e2eef170 | 2624 | #if !defined(CONFIG_USER_ONLY) |
8da3ff18 | 2625 | |
c04b2b78 PB |
2626 | #define SUBPAGE_IDX(addr) ((addr) & ~TARGET_PAGE_MASK) |
2627 | typedef struct subpage_t { | |
2628 | target_phys_addr_t base; | |
f6405247 RH |
2629 | ram_addr_t sub_io_index[TARGET_PAGE_SIZE]; |
2630 | ram_addr_t region_offset[TARGET_PAGE_SIZE]; | |
c04b2b78 PB |
2631 | } subpage_t; |
2632 | ||
c227f099 AL |
2633 | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
2634 | ram_addr_t memory, ram_addr_t region_offset); | |
f6405247 RH |
2635 | static subpage_t *subpage_init (target_phys_addr_t base, ram_addr_t *phys, |
2636 | ram_addr_t orig_memory, | |
2637 | ram_addr_t region_offset); | |
db7b5426 BS |
2638 | #define CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, \ |
2639 | need_subpage) \ | |
2640 | do { \ | |
2641 | if (addr > start_addr) \ | |
2642 | start_addr2 = 0; \ | |
2643 | else { \ | |
2644 | start_addr2 = start_addr & ~TARGET_PAGE_MASK; \ | |
2645 | if (start_addr2 > 0) \ | |
2646 | need_subpage = 1; \ | |
2647 | } \ | |
2648 | \ | |
49e9fba2 | 2649 | if ((start_addr + orig_size) - addr >= TARGET_PAGE_SIZE) \ |
db7b5426 BS |
2650 | end_addr2 = TARGET_PAGE_SIZE - 1; \ |
2651 | else { \ | |
2652 | end_addr2 = (start_addr + orig_size - 1) & ~TARGET_PAGE_MASK; \ | |
2653 | if (end_addr2 < TARGET_PAGE_SIZE - 1) \ | |
2654 | need_subpage = 1; \ | |
2655 | } \ | |
2656 | } while (0) | |
2657 | ||
8f2498f9 MT |
2658 | /* register physical memory. |
2659 | For RAM, 'size' must be a multiple of the target page size. | |
2660 | If (phys_offset & ~TARGET_PAGE_MASK) != 0, then it is an | |
8da3ff18 PB |
2661 | io memory page. The address used when calling the IO function is |
2662 | the offset from the start of the region, plus region_offset. Both | |
ccbb4d44 | 2663 | start_addr and region_offset are rounded down to a page boundary |
8da3ff18 PB |
2664 | before calculating this offset. This should not be a problem unless |
2665 | the low bits of start_addr and region_offset differ. */ | |
0fd542fb | 2666 | void cpu_register_physical_memory_log(target_phys_addr_t start_addr, |
c227f099 AL |
2667 | ram_addr_t size, |
2668 | ram_addr_t phys_offset, | |
0fd542fb MT |
2669 | ram_addr_t region_offset, |
2670 | bool log_dirty) | |
33417e70 | 2671 | { |
c227f099 | 2672 | target_phys_addr_t addr, end_addr; |
92e873b9 | 2673 | PhysPageDesc *p; |
9d42037b | 2674 | CPUState *env; |
c227f099 | 2675 | ram_addr_t orig_size = size; |
f6405247 | 2676 | subpage_t *subpage; |
33417e70 | 2677 | |
3b8e6a2d | 2678 | assert(size); |
0fd542fb | 2679 | cpu_notify_set_memory(start_addr, size, phys_offset, log_dirty); |
f6f3fbca | 2680 | |
67c4d23c PB |
2681 | if (phys_offset == IO_MEM_UNASSIGNED) { |
2682 | region_offset = start_addr; | |
2683 | } | |
8da3ff18 | 2684 | region_offset &= TARGET_PAGE_MASK; |
5fd386f6 | 2685 | size = (size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK; |
c227f099 | 2686 | end_addr = start_addr + (target_phys_addr_t)size; |
3b8e6a2d EI |
2687 | |
2688 | addr = start_addr; | |
2689 | do { | |
db7b5426 BS |
2690 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
2691 | if (p && p->phys_offset != IO_MEM_UNASSIGNED) { | |
c227f099 AL |
2692 | ram_addr_t orig_memory = p->phys_offset; |
2693 | target_phys_addr_t start_addr2, end_addr2; | |
db7b5426 BS |
2694 | int need_subpage = 0; |
2695 | ||
2696 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, | |
2697 | need_subpage); | |
f6405247 | 2698 | if (need_subpage) { |
db7b5426 BS |
2699 | if (!(orig_memory & IO_MEM_SUBPAGE)) { |
2700 | subpage = subpage_init((addr & TARGET_PAGE_MASK), | |
8da3ff18 PB |
2701 | &p->phys_offset, orig_memory, |
2702 | p->region_offset); | |
db7b5426 BS |
2703 | } else { |
2704 | subpage = io_mem_opaque[(orig_memory & ~TARGET_PAGE_MASK) | |
2705 | >> IO_MEM_SHIFT]; | |
2706 | } | |
8da3ff18 PB |
2707 | subpage_register(subpage, start_addr2, end_addr2, phys_offset, |
2708 | region_offset); | |
2709 | p->region_offset = 0; | |
db7b5426 BS |
2710 | } else { |
2711 | p->phys_offset = phys_offset; | |
2712 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM || | |
2713 | (phys_offset & IO_MEM_ROMD)) | |
2714 | phys_offset += TARGET_PAGE_SIZE; | |
2715 | } | |
2716 | } else { | |
2717 | p = phys_page_find_alloc(addr >> TARGET_PAGE_BITS, 1); | |
2718 | p->phys_offset = phys_offset; | |
8da3ff18 | 2719 | p->region_offset = region_offset; |
db7b5426 | 2720 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM || |
8da3ff18 | 2721 | (phys_offset & IO_MEM_ROMD)) { |
db7b5426 | 2722 | phys_offset += TARGET_PAGE_SIZE; |
0e8f0967 | 2723 | } else { |
c227f099 | 2724 | target_phys_addr_t start_addr2, end_addr2; |
db7b5426 BS |
2725 | int need_subpage = 0; |
2726 | ||
2727 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, | |
2728 | end_addr2, need_subpage); | |
2729 | ||
f6405247 | 2730 | if (need_subpage) { |
db7b5426 | 2731 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
8da3ff18 | 2732 | &p->phys_offset, IO_MEM_UNASSIGNED, |
67c4d23c | 2733 | addr & TARGET_PAGE_MASK); |
db7b5426 | 2734 | subpage_register(subpage, start_addr2, end_addr2, |
8da3ff18 PB |
2735 | phys_offset, region_offset); |
2736 | p->region_offset = 0; | |
db7b5426 BS |
2737 | } |
2738 | } | |
2739 | } | |
8da3ff18 | 2740 | region_offset += TARGET_PAGE_SIZE; |
3b8e6a2d EI |
2741 | addr += TARGET_PAGE_SIZE; |
2742 | } while (addr != end_addr); | |
3b46e624 | 2743 | |
9d42037b FB |
2744 | /* since each CPU stores ram addresses in its TLB cache, we must |
2745 | reset the modified entries */ | |
2746 | /* XXX: slow ! */ | |
2747 | for(env = first_cpu; env != NULL; env = env->next_cpu) { | |
2748 | tlb_flush(env, 1); | |
2749 | } | |
33417e70 FB |
2750 | } |
2751 | ||
ba863458 | 2752 | /* XXX: temporary until new memory mapping API */ |
c227f099 | 2753 | ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr) |
ba863458 FB |
2754 | { |
2755 | PhysPageDesc *p; | |
2756 | ||
2757 | p = phys_page_find(addr >> TARGET_PAGE_BITS); | |
2758 | if (!p) | |
2759 | return IO_MEM_UNASSIGNED; | |
2760 | return p->phys_offset; | |
2761 | } | |
2762 | ||
c227f099 | 2763 | void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size) |
f65ed4c1 AL |
2764 | { |
2765 | if (kvm_enabled()) | |
2766 | kvm_coalesce_mmio_region(addr, size); | |
2767 | } | |
2768 | ||
c227f099 | 2769 | void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size) |
f65ed4c1 AL |
2770 | { |
2771 | if (kvm_enabled()) | |
2772 | kvm_uncoalesce_mmio_region(addr, size); | |
2773 | } | |
2774 | ||
62a2744c SY |
2775 | void qemu_flush_coalesced_mmio_buffer(void) |
2776 | { | |
2777 | if (kvm_enabled()) | |
2778 | kvm_flush_coalesced_mmio_buffer(); | |
2779 | } | |
2780 | ||
c902760f MT |
2781 | #if defined(__linux__) && !defined(TARGET_S390X) |
2782 | ||
2783 | #include <sys/vfs.h> | |
2784 | ||
2785 | #define HUGETLBFS_MAGIC 0x958458f6 | |
2786 | ||
2787 | static long gethugepagesize(const char *path) | |
2788 | { | |
2789 | struct statfs fs; | |
2790 | int ret; | |
2791 | ||
2792 | do { | |
9742bf26 | 2793 | ret = statfs(path, &fs); |
c902760f MT |
2794 | } while (ret != 0 && errno == EINTR); |
2795 | ||
2796 | if (ret != 0) { | |
9742bf26 YT |
2797 | perror(path); |
2798 | return 0; | |
c902760f MT |
2799 | } |
2800 | ||
2801 | if (fs.f_type != HUGETLBFS_MAGIC) | |
9742bf26 | 2802 | fprintf(stderr, "Warning: path not on HugeTLBFS: %s\n", path); |
c902760f MT |
2803 | |
2804 | return fs.f_bsize; | |
2805 | } | |
2806 | ||
04b16653 AW |
2807 | static void *file_ram_alloc(RAMBlock *block, |
2808 | ram_addr_t memory, | |
2809 | const char *path) | |
c902760f MT |
2810 | { |
2811 | char *filename; | |
2812 | void *area; | |
2813 | int fd; | |
2814 | #ifdef MAP_POPULATE | |
2815 | int flags; | |
2816 | #endif | |
2817 | unsigned long hpagesize; | |
2818 | ||
2819 | hpagesize = gethugepagesize(path); | |
2820 | if (!hpagesize) { | |
9742bf26 | 2821 | return NULL; |
c902760f MT |
2822 | } |
2823 | ||
2824 | if (memory < hpagesize) { | |
2825 | return NULL; | |
2826 | } | |
2827 | ||
2828 | if (kvm_enabled() && !kvm_has_sync_mmu()) { | |
2829 | fprintf(stderr, "host lacks kvm mmu notifiers, -mem-path unsupported\n"); | |
2830 | return NULL; | |
2831 | } | |
2832 | ||
2833 | if (asprintf(&filename, "%s/qemu_back_mem.XXXXXX", path) == -1) { | |
9742bf26 | 2834 | return NULL; |
c902760f MT |
2835 | } |
2836 | ||
2837 | fd = mkstemp(filename); | |
2838 | if (fd < 0) { | |
9742bf26 YT |
2839 | perror("unable to create backing store for hugepages"); |
2840 | free(filename); | |
2841 | return NULL; | |
c902760f MT |
2842 | } |
2843 | unlink(filename); | |
2844 | free(filename); | |
2845 | ||
2846 | memory = (memory+hpagesize-1) & ~(hpagesize-1); | |
2847 | ||
2848 | /* | |
2849 | * ftruncate is not supported by hugetlbfs in older | |
2850 | * hosts, so don't bother bailing out on errors. | |
2851 | * If anything goes wrong with it under other filesystems, | |
2852 | * mmap will fail. | |
2853 | */ | |
2854 | if (ftruncate(fd, memory)) | |
9742bf26 | 2855 | perror("ftruncate"); |
c902760f MT |
2856 | |
2857 | #ifdef MAP_POPULATE | |
2858 | /* NB: MAP_POPULATE won't exhaustively alloc all phys pages in the case | |
2859 | * MAP_PRIVATE is requested. For mem_prealloc we mmap as MAP_SHARED | |
2860 | * to sidestep this quirk. | |
2861 | */ | |
2862 | flags = mem_prealloc ? MAP_POPULATE | MAP_SHARED : MAP_PRIVATE; | |
2863 | area = mmap(0, memory, PROT_READ | PROT_WRITE, flags, fd, 0); | |
2864 | #else | |
2865 | area = mmap(0, memory, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); | |
2866 | #endif | |
2867 | if (area == MAP_FAILED) { | |
9742bf26 YT |
2868 | perror("file_ram_alloc: can't mmap RAM pages"); |
2869 | close(fd); | |
2870 | return (NULL); | |
c902760f | 2871 | } |
04b16653 | 2872 | block->fd = fd; |
c902760f MT |
2873 | return area; |
2874 | } | |
2875 | #endif | |
2876 | ||
d17b5288 | 2877 | static ram_addr_t find_ram_offset(ram_addr_t size) |
04b16653 AW |
2878 | { |
2879 | RAMBlock *block, *next_block; | |
3e837b2c | 2880 | ram_addr_t offset = RAM_ADDR_MAX, mingap = RAM_ADDR_MAX; |
04b16653 AW |
2881 | |
2882 | if (QLIST_EMPTY(&ram_list.blocks)) | |
2883 | return 0; | |
2884 | ||
2885 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
f15fbc4b | 2886 | ram_addr_t end, next = RAM_ADDR_MAX; |
04b16653 AW |
2887 | |
2888 | end = block->offset + block->length; | |
2889 | ||
2890 | QLIST_FOREACH(next_block, &ram_list.blocks, next) { | |
2891 | if (next_block->offset >= end) { | |
2892 | next = MIN(next, next_block->offset); | |
2893 | } | |
2894 | } | |
2895 | if (next - end >= size && next - end < mingap) { | |
3e837b2c | 2896 | offset = end; |
04b16653 AW |
2897 | mingap = next - end; |
2898 | } | |
2899 | } | |
3e837b2c AW |
2900 | |
2901 | if (offset == RAM_ADDR_MAX) { | |
2902 | fprintf(stderr, "Failed to find gap of requested size: %" PRIu64 "\n", | |
2903 | (uint64_t)size); | |
2904 | abort(); | |
2905 | } | |
2906 | ||
04b16653 AW |
2907 | return offset; |
2908 | } | |
2909 | ||
2910 | static ram_addr_t last_ram_offset(void) | |
d17b5288 AW |
2911 | { |
2912 | RAMBlock *block; | |
2913 | ram_addr_t last = 0; | |
2914 | ||
2915 | QLIST_FOREACH(block, &ram_list.blocks, next) | |
2916 | last = MAX(last, block->offset + block->length); | |
2917 | ||
2918 | return last; | |
2919 | } | |
2920 | ||
84b89d78 | 2921 | ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name, |
fce537d4 AK |
2922 | ram_addr_t size, void *host, |
2923 | MemoryRegion *mr) | |
84b89d78 CM |
2924 | { |
2925 | RAMBlock *new_block, *block; | |
2926 | ||
2927 | size = TARGET_PAGE_ALIGN(size); | |
7267c094 | 2928 | new_block = g_malloc0(sizeof(*new_block)); |
84b89d78 CM |
2929 | |
2930 | if (dev && dev->parent_bus && dev->parent_bus->info->get_dev_path) { | |
2931 | char *id = dev->parent_bus->info->get_dev_path(dev); | |
2932 | if (id) { | |
2933 | snprintf(new_block->idstr, sizeof(new_block->idstr), "%s/", id); | |
7267c094 | 2934 | g_free(id); |
84b89d78 CM |
2935 | } |
2936 | } | |
2937 | pstrcat(new_block->idstr, sizeof(new_block->idstr), name); | |
2938 | ||
2939 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
2940 | if (!strcmp(block->idstr, new_block->idstr)) { | |
2941 | fprintf(stderr, "RAMBlock \"%s\" already registered, abort!\n", | |
2942 | new_block->idstr); | |
2943 | abort(); | |
2944 | } | |
2945 | } | |
2946 | ||
432d268c | 2947 | new_block->offset = find_ram_offset(size); |
6977dfe6 YT |
2948 | if (host) { |
2949 | new_block->host = host; | |
cd19cfa2 | 2950 | new_block->flags |= RAM_PREALLOC_MASK; |
6977dfe6 YT |
2951 | } else { |
2952 | if (mem_path) { | |
c902760f | 2953 | #if defined (__linux__) && !defined(TARGET_S390X) |
6977dfe6 YT |
2954 | new_block->host = file_ram_alloc(new_block, size, mem_path); |
2955 | if (!new_block->host) { | |
2956 | new_block->host = qemu_vmalloc(size); | |
e78815a5 | 2957 | qemu_madvise(new_block->host, size, QEMU_MADV_MERGEABLE); |
6977dfe6 | 2958 | } |
c902760f | 2959 | #else |
6977dfe6 YT |
2960 | fprintf(stderr, "-mem-path option unsupported\n"); |
2961 | exit(1); | |
c902760f | 2962 | #endif |
6977dfe6 | 2963 | } else { |
6b02494d | 2964 | #if defined(TARGET_S390X) && defined(CONFIG_KVM) |
ff83678a CB |
2965 | /* S390 KVM requires the topmost vma of the RAM to be smaller than |
2966 | an system defined value, which is at least 256GB. Larger systems | |
2967 | have larger values. We put the guest between the end of data | |
2968 | segment (system break) and this value. We use 32GB as a base to | |
2969 | have enough room for the system break to grow. */ | |
2970 | new_block->host = mmap((void*)0x800000000, size, | |
6977dfe6 | 2971 | PROT_EXEC|PROT_READ|PROT_WRITE, |
ff83678a | 2972 | MAP_SHARED | MAP_ANONYMOUS | MAP_FIXED, -1, 0); |
fb8b2735 AG |
2973 | if (new_block->host == MAP_FAILED) { |
2974 | fprintf(stderr, "Allocating RAM failed\n"); | |
2975 | abort(); | |
2976 | } | |
6b02494d | 2977 | #else |
868bb33f | 2978 | if (xen_enabled()) { |
fce537d4 | 2979 | xen_ram_alloc(new_block->offset, size, mr); |
432d268c JN |
2980 | } else { |
2981 | new_block->host = qemu_vmalloc(size); | |
2982 | } | |
6b02494d | 2983 | #endif |
e78815a5 | 2984 | qemu_madvise(new_block->host, size, QEMU_MADV_MERGEABLE); |
6977dfe6 | 2985 | } |
c902760f | 2986 | } |
94a6b54f PB |
2987 | new_block->length = size; |
2988 | ||
f471a17e | 2989 | QLIST_INSERT_HEAD(&ram_list.blocks, new_block, next); |
94a6b54f | 2990 | |
7267c094 | 2991 | ram_list.phys_dirty = g_realloc(ram_list.phys_dirty, |
04b16653 | 2992 | last_ram_offset() >> TARGET_PAGE_BITS); |
d17b5288 | 2993 | memset(ram_list.phys_dirty + (new_block->offset >> TARGET_PAGE_BITS), |
94a6b54f PB |
2994 | 0xff, size >> TARGET_PAGE_BITS); |
2995 | ||
6f0437e8 JK |
2996 | if (kvm_enabled()) |
2997 | kvm_setup_guest_memory(new_block->host, size); | |
2998 | ||
94a6b54f PB |
2999 | return new_block->offset; |
3000 | } | |
e9a1ab19 | 3001 | |
fce537d4 AK |
3002 | ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size, |
3003 | MemoryRegion *mr) | |
6977dfe6 | 3004 | { |
fce537d4 | 3005 | return qemu_ram_alloc_from_ptr(dev, name, size, NULL, mr); |
6977dfe6 YT |
3006 | } |
3007 | ||
1f2e98b6 AW |
3008 | void qemu_ram_free_from_ptr(ram_addr_t addr) |
3009 | { | |
3010 | RAMBlock *block; | |
3011 | ||
3012 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
3013 | if (addr == block->offset) { | |
3014 | QLIST_REMOVE(block, next); | |
7267c094 | 3015 | g_free(block); |
1f2e98b6 AW |
3016 | return; |
3017 | } | |
3018 | } | |
3019 | } | |
3020 | ||
c227f099 | 3021 | void qemu_ram_free(ram_addr_t addr) |
e9a1ab19 | 3022 | { |
04b16653 AW |
3023 | RAMBlock *block; |
3024 | ||
3025 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
3026 | if (addr == block->offset) { | |
3027 | QLIST_REMOVE(block, next); | |
cd19cfa2 HY |
3028 | if (block->flags & RAM_PREALLOC_MASK) { |
3029 | ; | |
3030 | } else if (mem_path) { | |
04b16653 AW |
3031 | #if defined (__linux__) && !defined(TARGET_S390X) |
3032 | if (block->fd) { | |
3033 | munmap(block->host, block->length); | |
3034 | close(block->fd); | |
3035 | } else { | |
3036 | qemu_vfree(block->host); | |
3037 | } | |
fd28aa13 JK |
3038 | #else |
3039 | abort(); | |
04b16653 AW |
3040 | #endif |
3041 | } else { | |
3042 | #if defined(TARGET_S390X) && defined(CONFIG_KVM) | |
3043 | munmap(block->host, block->length); | |
3044 | #else | |
868bb33f | 3045 | if (xen_enabled()) { |
e41d7c69 | 3046 | xen_invalidate_map_cache_entry(block->host); |
432d268c JN |
3047 | } else { |
3048 | qemu_vfree(block->host); | |
3049 | } | |
04b16653 AW |
3050 | #endif |
3051 | } | |
7267c094 | 3052 | g_free(block); |
04b16653 AW |
3053 | return; |
3054 | } | |
3055 | } | |
3056 | ||
e9a1ab19 FB |
3057 | } |
3058 | ||
cd19cfa2 HY |
3059 | #ifndef _WIN32 |
3060 | void qemu_ram_remap(ram_addr_t addr, ram_addr_t length) | |
3061 | { | |
3062 | RAMBlock *block; | |
3063 | ram_addr_t offset; | |
3064 | int flags; | |
3065 | void *area, *vaddr; | |
3066 | ||
3067 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
3068 | offset = addr - block->offset; | |
3069 | if (offset < block->length) { | |
3070 | vaddr = block->host + offset; | |
3071 | if (block->flags & RAM_PREALLOC_MASK) { | |
3072 | ; | |
3073 | } else { | |
3074 | flags = MAP_FIXED; | |
3075 | munmap(vaddr, length); | |
3076 | if (mem_path) { | |
3077 | #if defined(__linux__) && !defined(TARGET_S390X) | |
3078 | if (block->fd) { | |
3079 | #ifdef MAP_POPULATE | |
3080 | flags |= mem_prealloc ? MAP_POPULATE | MAP_SHARED : | |
3081 | MAP_PRIVATE; | |
3082 | #else | |
3083 | flags |= MAP_PRIVATE; | |
3084 | #endif | |
3085 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, | |
3086 | flags, block->fd, offset); | |
3087 | } else { | |
3088 | flags |= MAP_PRIVATE | MAP_ANONYMOUS; | |
3089 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, | |
3090 | flags, -1, 0); | |
3091 | } | |
fd28aa13 JK |
3092 | #else |
3093 | abort(); | |
cd19cfa2 HY |
3094 | #endif |
3095 | } else { | |
3096 | #if defined(TARGET_S390X) && defined(CONFIG_KVM) | |
3097 | flags |= MAP_SHARED | MAP_ANONYMOUS; | |
3098 | area = mmap(vaddr, length, PROT_EXEC|PROT_READ|PROT_WRITE, | |
3099 | flags, -1, 0); | |
3100 | #else | |
3101 | flags |= MAP_PRIVATE | MAP_ANONYMOUS; | |
3102 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, | |
3103 | flags, -1, 0); | |
3104 | #endif | |
3105 | } | |
3106 | if (area != vaddr) { | |
f15fbc4b AP |
3107 | fprintf(stderr, "Could not remap addr: " |
3108 | RAM_ADDR_FMT "@" RAM_ADDR_FMT "\n", | |
cd19cfa2 HY |
3109 | length, addr); |
3110 | exit(1); | |
3111 | } | |
3112 | qemu_madvise(vaddr, length, QEMU_MADV_MERGEABLE); | |
3113 | } | |
3114 | return; | |
3115 | } | |
3116 | } | |
3117 | } | |
3118 | #endif /* !_WIN32 */ | |
3119 | ||
dc828ca1 | 3120 | /* Return a host pointer to ram allocated with qemu_ram_alloc. |
5579c7f3 PB |
3121 | With the exception of the softmmu code in this file, this should |
3122 | only be used for local memory (e.g. video ram) that the device owns, | |
3123 | and knows it isn't going to access beyond the end of the block. | |
3124 | ||
3125 | It should not be used for general purpose DMA. | |
3126 | Use cpu_physical_memory_map/cpu_physical_memory_rw instead. | |
3127 | */ | |
c227f099 | 3128 | void *qemu_get_ram_ptr(ram_addr_t addr) |
dc828ca1 | 3129 | { |
94a6b54f PB |
3130 | RAMBlock *block; |
3131 | ||
f471a17e AW |
3132 | QLIST_FOREACH(block, &ram_list.blocks, next) { |
3133 | if (addr - block->offset < block->length) { | |
7d82af38 VP |
3134 | /* Move this entry to to start of the list. */ |
3135 | if (block != QLIST_FIRST(&ram_list.blocks)) { | |
3136 | QLIST_REMOVE(block, next); | |
3137 | QLIST_INSERT_HEAD(&ram_list.blocks, block, next); | |
3138 | } | |
868bb33f | 3139 | if (xen_enabled()) { |
432d268c JN |
3140 | /* We need to check if the requested address is in the RAM |
3141 | * because we don't want to map the entire memory in QEMU. | |
712c2b41 | 3142 | * In that case just map until the end of the page. |
432d268c JN |
3143 | */ |
3144 | if (block->offset == 0) { | |
e41d7c69 | 3145 | return xen_map_cache(addr, 0, 0); |
432d268c | 3146 | } else if (block->host == NULL) { |
e41d7c69 JK |
3147 | block->host = |
3148 | xen_map_cache(block->offset, block->length, 1); | |
432d268c JN |
3149 | } |
3150 | } | |
f471a17e AW |
3151 | return block->host + (addr - block->offset); |
3152 | } | |
94a6b54f | 3153 | } |
f471a17e AW |
3154 | |
3155 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); | |
3156 | abort(); | |
3157 | ||
3158 | return NULL; | |
dc828ca1 PB |
3159 | } |
3160 | ||
b2e0a138 MT |
3161 | /* Return a host pointer to ram allocated with qemu_ram_alloc. |
3162 | * Same as qemu_get_ram_ptr but avoid reordering ramblocks. | |
3163 | */ | |
3164 | void *qemu_safe_ram_ptr(ram_addr_t addr) | |
3165 | { | |
3166 | RAMBlock *block; | |
3167 | ||
3168 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
3169 | if (addr - block->offset < block->length) { | |
868bb33f | 3170 | if (xen_enabled()) { |
432d268c JN |
3171 | /* We need to check if the requested address is in the RAM |
3172 | * because we don't want to map the entire memory in QEMU. | |
712c2b41 | 3173 | * In that case just map until the end of the page. |
432d268c JN |
3174 | */ |
3175 | if (block->offset == 0) { | |
e41d7c69 | 3176 | return xen_map_cache(addr, 0, 0); |
432d268c | 3177 | } else if (block->host == NULL) { |
e41d7c69 JK |
3178 | block->host = |
3179 | xen_map_cache(block->offset, block->length, 1); | |
432d268c JN |
3180 | } |
3181 | } | |
b2e0a138 MT |
3182 | return block->host + (addr - block->offset); |
3183 | } | |
3184 | } | |
3185 | ||
3186 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); | |
3187 | abort(); | |
3188 | ||
3189 | return NULL; | |
3190 | } | |
3191 | ||
38bee5dc SS |
3192 | /* Return a host pointer to guest's ram. Similar to qemu_get_ram_ptr |
3193 | * but takes a size argument */ | |
8ab934f9 | 3194 | void *qemu_ram_ptr_length(ram_addr_t addr, ram_addr_t *size) |
38bee5dc | 3195 | { |
8ab934f9 SS |
3196 | if (*size == 0) { |
3197 | return NULL; | |
3198 | } | |
868bb33f | 3199 | if (xen_enabled()) { |
e41d7c69 | 3200 | return xen_map_cache(addr, *size, 1); |
868bb33f | 3201 | } else { |
38bee5dc SS |
3202 | RAMBlock *block; |
3203 | ||
3204 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
3205 | if (addr - block->offset < block->length) { | |
3206 | if (addr - block->offset + *size > block->length) | |
3207 | *size = block->length - addr + block->offset; | |
3208 | return block->host + (addr - block->offset); | |
3209 | } | |
3210 | } | |
3211 | ||
3212 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); | |
3213 | abort(); | |
38bee5dc SS |
3214 | } |
3215 | } | |
3216 | ||
050a0ddf AP |
3217 | void qemu_put_ram_ptr(void *addr) |
3218 | { | |
3219 | trace_qemu_put_ram_ptr(addr); | |
050a0ddf AP |
3220 | } |
3221 | ||
e890261f | 3222 | int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr) |
5579c7f3 | 3223 | { |
94a6b54f PB |
3224 | RAMBlock *block; |
3225 | uint8_t *host = ptr; | |
3226 | ||
868bb33f | 3227 | if (xen_enabled()) { |
e41d7c69 | 3228 | *ram_addr = xen_ram_addr_from_mapcache(ptr); |
712c2b41 SS |
3229 | return 0; |
3230 | } | |
3231 | ||
f471a17e | 3232 | QLIST_FOREACH(block, &ram_list.blocks, next) { |
432d268c JN |
3233 | /* This case append when the block is not mapped. */ |
3234 | if (block->host == NULL) { | |
3235 | continue; | |
3236 | } | |
f471a17e | 3237 | if (host - block->host < block->length) { |
e890261f MT |
3238 | *ram_addr = block->offset + (host - block->host); |
3239 | return 0; | |
f471a17e | 3240 | } |
94a6b54f | 3241 | } |
432d268c | 3242 | |
e890261f MT |
3243 | return -1; |
3244 | } | |
f471a17e | 3245 | |
e890261f MT |
3246 | /* Some of the softmmu routines need to translate from a host pointer |
3247 | (typically a TLB entry) back to a ram offset. */ | |
3248 | ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr) | |
3249 | { | |
3250 | ram_addr_t ram_addr; | |
f471a17e | 3251 | |
e890261f MT |
3252 | if (qemu_ram_addr_from_host(ptr, &ram_addr)) { |
3253 | fprintf(stderr, "Bad ram pointer %p\n", ptr); | |
3254 | abort(); | |
3255 | } | |
3256 | return ram_addr; | |
5579c7f3 PB |
3257 | } |
3258 | ||
c227f099 | 3259 | static uint32_t unassigned_mem_readb(void *opaque, target_phys_addr_t addr) |
33417e70 | 3260 | { |
67d3b957 | 3261 | #ifdef DEBUG_UNASSIGNED |
ab3d1727 | 3262 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
b4f0a316 | 3263 | #endif |
5b450407 | 3264 | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
b14ef7c9 | 3265 | cpu_unassigned_access(cpu_single_env, addr, 0, 0, 0, 1); |
e18231a3 BS |
3266 | #endif |
3267 | return 0; | |
3268 | } | |
3269 | ||
c227f099 | 3270 | static uint32_t unassigned_mem_readw(void *opaque, target_phys_addr_t addr) |
e18231a3 BS |
3271 | { |
3272 | #ifdef DEBUG_UNASSIGNED | |
3273 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); | |
3274 | #endif | |
5b450407 | 3275 | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
b14ef7c9 | 3276 | cpu_unassigned_access(cpu_single_env, addr, 0, 0, 0, 2); |
e18231a3 BS |
3277 | #endif |
3278 | return 0; | |
3279 | } | |
3280 | ||
c227f099 | 3281 | static uint32_t unassigned_mem_readl(void *opaque, target_phys_addr_t addr) |
e18231a3 BS |
3282 | { |
3283 | #ifdef DEBUG_UNASSIGNED | |
3284 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); | |
3285 | #endif | |
5b450407 | 3286 | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
b14ef7c9 | 3287 | cpu_unassigned_access(cpu_single_env, addr, 0, 0, 0, 4); |
67d3b957 | 3288 | #endif |
33417e70 FB |
3289 | return 0; |
3290 | } | |
3291 | ||
c227f099 | 3292 | static void unassigned_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
33417e70 | 3293 | { |
67d3b957 | 3294 | #ifdef DEBUG_UNASSIGNED |
ab3d1727 | 3295 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
67d3b957 | 3296 | #endif |
5b450407 | 3297 | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
b14ef7c9 | 3298 | cpu_unassigned_access(cpu_single_env, addr, 1, 0, 0, 1); |
e18231a3 BS |
3299 | #endif |
3300 | } | |
3301 | ||
c227f099 | 3302 | static void unassigned_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val) |
e18231a3 BS |
3303 | { |
3304 | #ifdef DEBUG_UNASSIGNED | |
3305 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); | |
3306 | #endif | |
5b450407 | 3307 | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
b14ef7c9 | 3308 | cpu_unassigned_access(cpu_single_env, addr, 1, 0, 0, 2); |
e18231a3 BS |
3309 | #endif |
3310 | } | |
3311 | ||
c227f099 | 3312 | static void unassigned_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val) |
e18231a3 BS |
3313 | { |
3314 | #ifdef DEBUG_UNASSIGNED | |
3315 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); | |
3316 | #endif | |
5b450407 | 3317 | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
b14ef7c9 | 3318 | cpu_unassigned_access(cpu_single_env, addr, 1, 0, 0, 4); |
b4f0a316 | 3319 | #endif |
33417e70 FB |
3320 | } |
3321 | ||
d60efc6b | 3322 | static CPUReadMemoryFunc * const unassigned_mem_read[3] = { |
33417e70 | 3323 | unassigned_mem_readb, |
e18231a3 BS |
3324 | unassigned_mem_readw, |
3325 | unassigned_mem_readl, | |
33417e70 FB |
3326 | }; |
3327 | ||
d60efc6b | 3328 | static CPUWriteMemoryFunc * const unassigned_mem_write[3] = { |
33417e70 | 3329 | unassigned_mem_writeb, |
e18231a3 BS |
3330 | unassigned_mem_writew, |
3331 | unassigned_mem_writel, | |
33417e70 FB |
3332 | }; |
3333 | ||
c227f099 | 3334 | static void notdirty_mem_writeb(void *opaque, target_phys_addr_t ram_addr, |
0f459d16 | 3335 | uint32_t val) |
9fa3e853 | 3336 | { |
3a7d929e | 3337 | int dirty_flags; |
f7c11b53 | 3338 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3a7d929e | 3339 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
9fa3e853 | 3340 | #if !defined(CONFIG_USER_ONLY) |
3a7d929e | 3341 | tb_invalidate_phys_page_fast(ram_addr, 1); |
f7c11b53 | 3342 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
9fa3e853 | 3343 | #endif |
3a7d929e | 3344 | } |
5579c7f3 | 3345 | stb_p(qemu_get_ram_ptr(ram_addr), val); |
f23db169 | 3346 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
f7c11b53 | 3347 | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
f23db169 FB |
3348 | /* we remove the notdirty callback only if the code has been |
3349 | flushed */ | |
3350 | if (dirty_flags == 0xff) | |
2e70f6ef | 3351 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
9fa3e853 FB |
3352 | } |
3353 | ||
c227f099 | 3354 | static void notdirty_mem_writew(void *opaque, target_phys_addr_t ram_addr, |
0f459d16 | 3355 | uint32_t val) |
9fa3e853 | 3356 | { |
3a7d929e | 3357 | int dirty_flags; |
f7c11b53 | 3358 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3a7d929e | 3359 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
9fa3e853 | 3360 | #if !defined(CONFIG_USER_ONLY) |
3a7d929e | 3361 | tb_invalidate_phys_page_fast(ram_addr, 2); |
f7c11b53 | 3362 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
9fa3e853 | 3363 | #endif |
3a7d929e | 3364 | } |
5579c7f3 | 3365 | stw_p(qemu_get_ram_ptr(ram_addr), val); |
f23db169 | 3366 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
f7c11b53 | 3367 | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
f23db169 FB |
3368 | /* we remove the notdirty callback only if the code has been |
3369 | flushed */ | |
3370 | if (dirty_flags == 0xff) | |
2e70f6ef | 3371 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
9fa3e853 FB |
3372 | } |
3373 | ||
c227f099 | 3374 | static void notdirty_mem_writel(void *opaque, target_phys_addr_t ram_addr, |
0f459d16 | 3375 | uint32_t val) |
9fa3e853 | 3376 | { |
3a7d929e | 3377 | int dirty_flags; |
f7c11b53 | 3378 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3a7d929e | 3379 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
9fa3e853 | 3380 | #if !defined(CONFIG_USER_ONLY) |
3a7d929e | 3381 | tb_invalidate_phys_page_fast(ram_addr, 4); |
f7c11b53 | 3382 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
9fa3e853 | 3383 | #endif |
3a7d929e | 3384 | } |
5579c7f3 | 3385 | stl_p(qemu_get_ram_ptr(ram_addr), val); |
f23db169 | 3386 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
f7c11b53 | 3387 | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
f23db169 FB |
3388 | /* we remove the notdirty callback only if the code has been |
3389 | flushed */ | |
3390 | if (dirty_flags == 0xff) | |
2e70f6ef | 3391 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
9fa3e853 FB |
3392 | } |
3393 | ||
d60efc6b | 3394 | static CPUReadMemoryFunc * const error_mem_read[3] = { |
9fa3e853 FB |
3395 | NULL, /* never used */ |
3396 | NULL, /* never used */ | |
3397 | NULL, /* never used */ | |
3398 | }; | |
3399 | ||
d60efc6b | 3400 | static CPUWriteMemoryFunc * const notdirty_mem_write[3] = { |
1ccde1cb FB |
3401 | notdirty_mem_writeb, |
3402 | notdirty_mem_writew, | |
3403 | notdirty_mem_writel, | |
3404 | }; | |
3405 | ||
0f459d16 | 3406 | /* Generate a debug exception if a watchpoint has been hit. */ |
b4051334 | 3407 | static void check_watchpoint(int offset, int len_mask, int flags) |
0f459d16 PB |
3408 | { |
3409 | CPUState *env = cpu_single_env; | |
06d55cc1 AL |
3410 | target_ulong pc, cs_base; |
3411 | TranslationBlock *tb; | |
0f459d16 | 3412 | target_ulong vaddr; |
a1d1bb31 | 3413 | CPUWatchpoint *wp; |
06d55cc1 | 3414 | int cpu_flags; |
0f459d16 | 3415 | |
06d55cc1 AL |
3416 | if (env->watchpoint_hit) { |
3417 | /* We re-entered the check after replacing the TB. Now raise | |
3418 | * the debug interrupt so that is will trigger after the | |
3419 | * current instruction. */ | |
3420 | cpu_interrupt(env, CPU_INTERRUPT_DEBUG); | |
3421 | return; | |
3422 | } | |
2e70f6ef | 3423 | vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset; |
72cf2d4f | 3424 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
b4051334 AL |
3425 | if ((vaddr == (wp->vaddr & len_mask) || |
3426 | (vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) { | |
6e140f28 AL |
3427 | wp->flags |= BP_WATCHPOINT_HIT; |
3428 | if (!env->watchpoint_hit) { | |
3429 | env->watchpoint_hit = wp; | |
3430 | tb = tb_find_pc(env->mem_io_pc); | |
3431 | if (!tb) { | |
3432 | cpu_abort(env, "check_watchpoint: could not find TB for " | |
3433 | "pc=%p", (void *)env->mem_io_pc); | |
3434 | } | |
618ba8e6 | 3435 | cpu_restore_state(tb, env, env->mem_io_pc); |
6e140f28 AL |
3436 | tb_phys_invalidate(tb, -1); |
3437 | if (wp->flags & BP_STOP_BEFORE_ACCESS) { | |
3438 | env->exception_index = EXCP_DEBUG; | |
3439 | } else { | |
3440 | cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags); | |
3441 | tb_gen_code(env, pc, cs_base, cpu_flags, 1); | |
3442 | } | |
3443 | cpu_resume_from_signal(env, NULL); | |
06d55cc1 | 3444 | } |
6e140f28 AL |
3445 | } else { |
3446 | wp->flags &= ~BP_WATCHPOINT_HIT; | |
0f459d16 PB |
3447 | } |
3448 | } | |
3449 | } | |
3450 | ||
6658ffb8 PB |
3451 | /* Watchpoint access routines. Watchpoints are inserted using TLB tricks, |
3452 | so these check for a hit then pass through to the normal out-of-line | |
3453 | phys routines. */ | |
c227f099 | 3454 | static uint32_t watch_mem_readb(void *opaque, target_phys_addr_t addr) |
6658ffb8 | 3455 | { |
b4051334 | 3456 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x0, BP_MEM_READ); |
6658ffb8 PB |
3457 | return ldub_phys(addr); |
3458 | } | |
3459 | ||
c227f099 | 3460 | static uint32_t watch_mem_readw(void *opaque, target_phys_addr_t addr) |
6658ffb8 | 3461 | { |
b4051334 | 3462 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x1, BP_MEM_READ); |
6658ffb8 PB |
3463 | return lduw_phys(addr); |
3464 | } | |
3465 | ||
c227f099 | 3466 | static uint32_t watch_mem_readl(void *opaque, target_phys_addr_t addr) |
6658ffb8 | 3467 | { |
b4051334 | 3468 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x3, BP_MEM_READ); |
6658ffb8 PB |
3469 | return ldl_phys(addr); |
3470 | } | |
3471 | ||
c227f099 | 3472 | static void watch_mem_writeb(void *opaque, target_phys_addr_t addr, |
6658ffb8 PB |
3473 | uint32_t val) |
3474 | { | |
b4051334 | 3475 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x0, BP_MEM_WRITE); |
6658ffb8 PB |
3476 | stb_phys(addr, val); |
3477 | } | |
3478 | ||
c227f099 | 3479 | static void watch_mem_writew(void *opaque, target_phys_addr_t addr, |
6658ffb8 PB |
3480 | uint32_t val) |
3481 | { | |
b4051334 | 3482 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x1, BP_MEM_WRITE); |
6658ffb8 PB |
3483 | stw_phys(addr, val); |
3484 | } | |
3485 | ||
c227f099 | 3486 | static void watch_mem_writel(void *opaque, target_phys_addr_t addr, |
6658ffb8 PB |
3487 | uint32_t val) |
3488 | { | |
b4051334 | 3489 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x3, BP_MEM_WRITE); |
6658ffb8 PB |
3490 | stl_phys(addr, val); |
3491 | } | |
3492 | ||
d60efc6b | 3493 | static CPUReadMemoryFunc * const watch_mem_read[3] = { |
6658ffb8 PB |
3494 | watch_mem_readb, |
3495 | watch_mem_readw, | |
3496 | watch_mem_readl, | |
3497 | }; | |
3498 | ||
d60efc6b | 3499 | static CPUWriteMemoryFunc * const watch_mem_write[3] = { |
6658ffb8 PB |
3500 | watch_mem_writeb, |
3501 | watch_mem_writew, | |
3502 | watch_mem_writel, | |
3503 | }; | |
6658ffb8 | 3504 | |
f6405247 RH |
3505 | static inline uint32_t subpage_readlen (subpage_t *mmio, |
3506 | target_phys_addr_t addr, | |
3507 | unsigned int len) | |
db7b5426 | 3508 | { |
f6405247 | 3509 | unsigned int idx = SUBPAGE_IDX(addr); |
db7b5426 BS |
3510 | #if defined(DEBUG_SUBPAGE) |
3511 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d\n", __func__, | |
3512 | mmio, len, addr, idx); | |
3513 | #endif | |
db7b5426 | 3514 | |
f6405247 RH |
3515 | addr += mmio->region_offset[idx]; |
3516 | idx = mmio->sub_io_index[idx]; | |
3517 | return io_mem_read[idx][len](io_mem_opaque[idx], addr); | |
db7b5426 BS |
3518 | } |
3519 | ||
c227f099 | 3520 | static inline void subpage_writelen (subpage_t *mmio, target_phys_addr_t addr, |
f6405247 | 3521 | uint32_t value, unsigned int len) |
db7b5426 | 3522 | { |
f6405247 | 3523 | unsigned int idx = SUBPAGE_IDX(addr); |
db7b5426 | 3524 | #if defined(DEBUG_SUBPAGE) |
f6405247 RH |
3525 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d value %08x\n", |
3526 | __func__, mmio, len, addr, idx, value); | |
db7b5426 | 3527 | #endif |
f6405247 RH |
3528 | |
3529 | addr += mmio->region_offset[idx]; | |
3530 | idx = mmio->sub_io_index[idx]; | |
3531 | io_mem_write[idx][len](io_mem_opaque[idx], addr, value); | |
db7b5426 BS |
3532 | } |
3533 | ||
c227f099 | 3534 | static uint32_t subpage_readb (void *opaque, target_phys_addr_t addr) |
db7b5426 | 3535 | { |
db7b5426 BS |
3536 | return subpage_readlen(opaque, addr, 0); |
3537 | } | |
3538 | ||
c227f099 | 3539 | static void subpage_writeb (void *opaque, target_phys_addr_t addr, |
db7b5426 BS |
3540 | uint32_t value) |
3541 | { | |
db7b5426 BS |
3542 | subpage_writelen(opaque, addr, value, 0); |
3543 | } | |
3544 | ||
c227f099 | 3545 | static uint32_t subpage_readw (void *opaque, target_phys_addr_t addr) |
db7b5426 | 3546 | { |
db7b5426 BS |
3547 | return subpage_readlen(opaque, addr, 1); |
3548 | } | |
3549 | ||
c227f099 | 3550 | static void subpage_writew (void *opaque, target_phys_addr_t addr, |
db7b5426 BS |
3551 | uint32_t value) |
3552 | { | |
db7b5426 BS |
3553 | subpage_writelen(opaque, addr, value, 1); |
3554 | } | |
3555 | ||
c227f099 | 3556 | static uint32_t subpage_readl (void *opaque, target_phys_addr_t addr) |
db7b5426 | 3557 | { |
db7b5426 BS |
3558 | return subpage_readlen(opaque, addr, 2); |
3559 | } | |
3560 | ||
f6405247 RH |
3561 | static void subpage_writel (void *opaque, target_phys_addr_t addr, |
3562 | uint32_t value) | |
db7b5426 | 3563 | { |
db7b5426 BS |
3564 | subpage_writelen(opaque, addr, value, 2); |
3565 | } | |
3566 | ||
d60efc6b | 3567 | static CPUReadMemoryFunc * const subpage_read[] = { |
db7b5426 BS |
3568 | &subpage_readb, |
3569 | &subpage_readw, | |
3570 | &subpage_readl, | |
3571 | }; | |
3572 | ||
d60efc6b | 3573 | static CPUWriteMemoryFunc * const subpage_write[] = { |
db7b5426 BS |
3574 | &subpage_writeb, |
3575 | &subpage_writew, | |
3576 | &subpage_writel, | |
3577 | }; | |
3578 | ||
56384e8b AF |
3579 | static uint32_t subpage_ram_readb(void *opaque, target_phys_addr_t addr) |
3580 | { | |
3581 | ram_addr_t raddr = addr; | |
3582 | void *ptr = qemu_get_ram_ptr(raddr); | |
3583 | return ldub_p(ptr); | |
3584 | } | |
3585 | ||
3586 | static void subpage_ram_writeb(void *opaque, target_phys_addr_t addr, | |
3587 | uint32_t value) | |
3588 | { | |
3589 | ram_addr_t raddr = addr; | |
3590 | void *ptr = qemu_get_ram_ptr(raddr); | |
3591 | stb_p(ptr, value); | |
3592 | } | |
3593 | ||
3594 | static uint32_t subpage_ram_readw(void *opaque, target_phys_addr_t addr) | |
3595 | { | |
3596 | ram_addr_t raddr = addr; | |
3597 | void *ptr = qemu_get_ram_ptr(raddr); | |
3598 | return lduw_p(ptr); | |
3599 | } | |
3600 | ||
3601 | static void subpage_ram_writew(void *opaque, target_phys_addr_t addr, | |
3602 | uint32_t value) | |
3603 | { | |
3604 | ram_addr_t raddr = addr; | |
3605 | void *ptr = qemu_get_ram_ptr(raddr); | |
3606 | stw_p(ptr, value); | |
3607 | } | |
3608 | ||
3609 | static uint32_t subpage_ram_readl(void *opaque, target_phys_addr_t addr) | |
3610 | { | |
3611 | ram_addr_t raddr = addr; | |
3612 | void *ptr = qemu_get_ram_ptr(raddr); | |
3613 | return ldl_p(ptr); | |
3614 | } | |
3615 | ||
3616 | static void subpage_ram_writel(void *opaque, target_phys_addr_t addr, | |
3617 | uint32_t value) | |
3618 | { | |
3619 | ram_addr_t raddr = addr; | |
3620 | void *ptr = qemu_get_ram_ptr(raddr); | |
3621 | stl_p(ptr, value); | |
3622 | } | |
3623 | ||
3624 | static CPUReadMemoryFunc * const subpage_ram_read[] = { | |
3625 | &subpage_ram_readb, | |
3626 | &subpage_ram_readw, | |
3627 | &subpage_ram_readl, | |
3628 | }; | |
3629 | ||
3630 | static CPUWriteMemoryFunc * const subpage_ram_write[] = { | |
3631 | &subpage_ram_writeb, | |
3632 | &subpage_ram_writew, | |
3633 | &subpage_ram_writel, | |
3634 | }; | |
3635 | ||
c227f099 AL |
3636 | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
3637 | ram_addr_t memory, ram_addr_t region_offset) | |
db7b5426 BS |
3638 | { |
3639 | int idx, eidx; | |
3640 | ||
3641 | if (start >= TARGET_PAGE_SIZE || end >= TARGET_PAGE_SIZE) | |
3642 | return -1; | |
3643 | idx = SUBPAGE_IDX(start); | |
3644 | eidx = SUBPAGE_IDX(end); | |
3645 | #if defined(DEBUG_SUBPAGE) | |
0bf9e31a | 3646 | printf("%s: %p start %08x end %08x idx %08x eidx %08x mem %ld\n", __func__, |
db7b5426 BS |
3647 | mmio, start, end, idx, eidx, memory); |
3648 | #endif | |
56384e8b AF |
3649 | if ((memory & ~TARGET_PAGE_MASK) == IO_MEM_RAM) { |
3650 | memory = IO_MEM_SUBPAGE_RAM; | |
3651 | } | |
f6405247 | 3652 | memory = (memory >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
db7b5426 | 3653 | for (; idx <= eidx; idx++) { |
f6405247 RH |
3654 | mmio->sub_io_index[idx] = memory; |
3655 | mmio->region_offset[idx] = region_offset; | |
db7b5426 BS |
3656 | } |
3657 | ||
3658 | return 0; | |
3659 | } | |
3660 | ||
f6405247 RH |
3661 | static subpage_t *subpage_init (target_phys_addr_t base, ram_addr_t *phys, |
3662 | ram_addr_t orig_memory, | |
3663 | ram_addr_t region_offset) | |
db7b5426 | 3664 | { |
c227f099 | 3665 | subpage_t *mmio; |
db7b5426 BS |
3666 | int subpage_memory; |
3667 | ||
7267c094 | 3668 | mmio = g_malloc0(sizeof(subpage_t)); |
1eec614b AL |
3669 | |
3670 | mmio->base = base; | |
2507c12a AG |
3671 | subpage_memory = cpu_register_io_memory(subpage_read, subpage_write, mmio, |
3672 | DEVICE_NATIVE_ENDIAN); | |
db7b5426 | 3673 | #if defined(DEBUG_SUBPAGE) |
1eec614b AL |
3674 | printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__, |
3675 | mmio, base, TARGET_PAGE_SIZE, subpage_memory); | |
db7b5426 | 3676 | #endif |
1eec614b | 3677 | *phys = subpage_memory | IO_MEM_SUBPAGE; |
f6405247 | 3678 | subpage_register(mmio, 0, TARGET_PAGE_SIZE-1, orig_memory, region_offset); |
db7b5426 BS |
3679 | |
3680 | return mmio; | |
3681 | } | |
3682 | ||
88715657 AL |
3683 | static int get_free_io_mem_idx(void) |
3684 | { | |
3685 | int i; | |
3686 | ||
3687 | for (i = 0; i<IO_MEM_NB_ENTRIES; i++) | |
3688 | if (!io_mem_used[i]) { | |
3689 | io_mem_used[i] = 1; | |
3690 | return i; | |
3691 | } | |
c6703b47 | 3692 | fprintf(stderr, "RAN out out io_mem_idx, max %d !\n", IO_MEM_NB_ENTRIES); |
88715657 AL |
3693 | return -1; |
3694 | } | |
3695 | ||
dd310534 AG |
3696 | /* |
3697 | * Usually, devices operate in little endian mode. There are devices out | |
3698 | * there that operate in big endian too. Each device gets byte swapped | |
3699 | * mmio if plugged onto a CPU that does the other endianness. | |
3700 | * | |
3701 | * CPU Device swap? | |
3702 | * | |
3703 | * little little no | |
3704 | * little big yes | |
3705 | * big little yes | |
3706 | * big big no | |
3707 | */ | |
3708 | ||
3709 | typedef struct SwapEndianContainer { | |
3710 | CPUReadMemoryFunc *read[3]; | |
3711 | CPUWriteMemoryFunc *write[3]; | |
3712 | void *opaque; | |
3713 | } SwapEndianContainer; | |
3714 | ||
3715 | static uint32_t swapendian_mem_readb (void *opaque, target_phys_addr_t addr) | |
3716 | { | |
3717 | uint32_t val; | |
3718 | SwapEndianContainer *c = opaque; | |
3719 | val = c->read[0](c->opaque, addr); | |
3720 | return val; | |
3721 | } | |
3722 | ||
3723 | static uint32_t swapendian_mem_readw(void *opaque, target_phys_addr_t addr) | |
3724 | { | |
3725 | uint32_t val; | |
3726 | SwapEndianContainer *c = opaque; | |
3727 | val = bswap16(c->read[1](c->opaque, addr)); | |
3728 | return val; | |
3729 | } | |
3730 | ||
3731 | static uint32_t swapendian_mem_readl(void *opaque, target_phys_addr_t addr) | |
3732 | { | |
3733 | uint32_t val; | |
3734 | SwapEndianContainer *c = opaque; | |
3735 | val = bswap32(c->read[2](c->opaque, addr)); | |
3736 | return val; | |
3737 | } | |
3738 | ||
3739 | static CPUReadMemoryFunc * const swapendian_readfn[3]={ | |
3740 | swapendian_mem_readb, | |
3741 | swapendian_mem_readw, | |
3742 | swapendian_mem_readl | |
3743 | }; | |
3744 | ||
3745 | static void swapendian_mem_writeb(void *opaque, target_phys_addr_t addr, | |
3746 | uint32_t val) | |
3747 | { | |
3748 | SwapEndianContainer *c = opaque; | |
3749 | c->write[0](c->opaque, addr, val); | |
3750 | } | |
3751 | ||
3752 | static void swapendian_mem_writew(void *opaque, target_phys_addr_t addr, | |
3753 | uint32_t val) | |
3754 | { | |
3755 | SwapEndianContainer *c = opaque; | |
3756 | c->write[1](c->opaque, addr, bswap16(val)); | |
3757 | } | |
3758 | ||
3759 | static void swapendian_mem_writel(void *opaque, target_phys_addr_t addr, | |
3760 | uint32_t val) | |
3761 | { | |
3762 | SwapEndianContainer *c = opaque; | |
3763 | c->write[2](c->opaque, addr, bswap32(val)); | |
3764 | } | |
3765 | ||
3766 | static CPUWriteMemoryFunc * const swapendian_writefn[3]={ | |
3767 | swapendian_mem_writeb, | |
3768 | swapendian_mem_writew, | |
3769 | swapendian_mem_writel | |
3770 | }; | |
3771 | ||
3772 | static void swapendian_init(int io_index) | |
3773 | { | |
7267c094 | 3774 | SwapEndianContainer *c = g_malloc(sizeof(SwapEndianContainer)); |
dd310534 AG |
3775 | int i; |
3776 | ||
3777 | /* Swap mmio for big endian targets */ | |
3778 | c->opaque = io_mem_opaque[io_index]; | |
3779 | for (i = 0; i < 3; i++) { | |
3780 | c->read[i] = io_mem_read[io_index][i]; | |
3781 | c->write[i] = io_mem_write[io_index][i]; | |
3782 | ||
3783 | io_mem_read[io_index][i] = swapendian_readfn[i]; | |
3784 | io_mem_write[io_index][i] = swapendian_writefn[i]; | |
3785 | } | |
3786 | io_mem_opaque[io_index] = c; | |
3787 | } | |
3788 | ||
3789 | static void swapendian_del(int io_index) | |
3790 | { | |
3791 | if (io_mem_read[io_index][0] == swapendian_readfn[0]) { | |
7267c094 | 3792 | g_free(io_mem_opaque[io_index]); |
dd310534 AG |
3793 | } |
3794 | } | |
3795 | ||
33417e70 FB |
3796 | /* mem_read and mem_write are arrays of functions containing the |
3797 | function to access byte (index 0), word (index 1) and dword (index | |
0b4e6e3e | 3798 | 2). Functions can be omitted with a NULL function pointer. |
3ee89922 | 3799 | If io_index is non zero, the corresponding io zone is |
4254fab8 BS |
3800 | modified. If it is zero, a new io zone is allocated. The return |
3801 | value can be used with cpu_register_physical_memory(). (-1) is | |
3802 | returned if error. */ | |
1eed09cb | 3803 | static int cpu_register_io_memory_fixed(int io_index, |
d60efc6b BS |
3804 | CPUReadMemoryFunc * const *mem_read, |
3805 | CPUWriteMemoryFunc * const *mem_write, | |
dd310534 | 3806 | void *opaque, enum device_endian endian) |
33417e70 | 3807 | { |
3cab721d RH |
3808 | int i; |
3809 | ||
33417e70 | 3810 | if (io_index <= 0) { |
88715657 AL |
3811 | io_index = get_free_io_mem_idx(); |
3812 | if (io_index == -1) | |
3813 | return io_index; | |
33417e70 | 3814 | } else { |
1eed09cb | 3815 | io_index >>= IO_MEM_SHIFT; |
33417e70 FB |
3816 | if (io_index >= IO_MEM_NB_ENTRIES) |
3817 | return -1; | |
3818 | } | |
b5ff1b31 | 3819 | |
3cab721d RH |
3820 | for (i = 0; i < 3; ++i) { |
3821 | io_mem_read[io_index][i] | |
3822 | = (mem_read[i] ? mem_read[i] : unassigned_mem_read[i]); | |
3823 | } | |
3824 | for (i = 0; i < 3; ++i) { | |
3825 | io_mem_write[io_index][i] | |
3826 | = (mem_write[i] ? mem_write[i] : unassigned_mem_write[i]); | |
3827 | } | |
a4193c8a | 3828 | io_mem_opaque[io_index] = opaque; |
f6405247 | 3829 | |
dd310534 AG |
3830 | switch (endian) { |
3831 | case DEVICE_BIG_ENDIAN: | |
3832 | #ifndef TARGET_WORDS_BIGENDIAN | |
3833 | swapendian_init(io_index); | |
3834 | #endif | |
3835 | break; | |
3836 | case DEVICE_LITTLE_ENDIAN: | |
3837 | #ifdef TARGET_WORDS_BIGENDIAN | |
3838 | swapendian_init(io_index); | |
3839 | #endif | |
3840 | break; | |
3841 | case DEVICE_NATIVE_ENDIAN: | |
3842 | default: | |
3843 | break; | |
3844 | } | |
3845 | ||
f6405247 | 3846 | return (io_index << IO_MEM_SHIFT); |
33417e70 | 3847 | } |
61382a50 | 3848 | |
d60efc6b BS |
3849 | int cpu_register_io_memory(CPUReadMemoryFunc * const *mem_read, |
3850 | CPUWriteMemoryFunc * const *mem_write, | |
dd310534 | 3851 | void *opaque, enum device_endian endian) |
1eed09cb | 3852 | { |
2507c12a | 3853 | return cpu_register_io_memory_fixed(0, mem_read, mem_write, opaque, endian); |
1eed09cb AK |
3854 | } |
3855 | ||
88715657 AL |
3856 | void cpu_unregister_io_memory(int io_table_address) |
3857 | { | |
3858 | int i; | |
3859 | int io_index = io_table_address >> IO_MEM_SHIFT; | |
3860 | ||
dd310534 AG |
3861 | swapendian_del(io_index); |
3862 | ||
88715657 AL |
3863 | for (i=0;i < 3; i++) { |
3864 | io_mem_read[io_index][i] = unassigned_mem_read[i]; | |
3865 | io_mem_write[io_index][i] = unassigned_mem_write[i]; | |
3866 | } | |
3867 | io_mem_opaque[io_index] = NULL; | |
3868 | io_mem_used[io_index] = 0; | |
3869 | } | |
3870 | ||
e9179ce1 AK |
3871 | static void io_mem_init(void) |
3872 | { | |
3873 | int i; | |
3874 | ||
2507c12a AG |
3875 | cpu_register_io_memory_fixed(IO_MEM_ROM, error_mem_read, |
3876 | unassigned_mem_write, NULL, | |
3877 | DEVICE_NATIVE_ENDIAN); | |
3878 | cpu_register_io_memory_fixed(IO_MEM_UNASSIGNED, unassigned_mem_read, | |
3879 | unassigned_mem_write, NULL, | |
3880 | DEVICE_NATIVE_ENDIAN); | |
3881 | cpu_register_io_memory_fixed(IO_MEM_NOTDIRTY, error_mem_read, | |
3882 | notdirty_mem_write, NULL, | |
3883 | DEVICE_NATIVE_ENDIAN); | |
56384e8b AF |
3884 | cpu_register_io_memory_fixed(IO_MEM_SUBPAGE_RAM, subpage_ram_read, |
3885 | subpage_ram_write, NULL, | |
3886 | DEVICE_NATIVE_ENDIAN); | |
e9179ce1 AK |
3887 | for (i=0; i<5; i++) |
3888 | io_mem_used[i] = 1; | |
3889 | ||
3890 | io_mem_watch = cpu_register_io_memory(watch_mem_read, | |
2507c12a AG |
3891 | watch_mem_write, NULL, |
3892 | DEVICE_NATIVE_ENDIAN); | |
e9179ce1 AK |
3893 | } |
3894 | ||
62152b8a AK |
3895 | static void memory_map_init(void) |
3896 | { | |
7267c094 | 3897 | system_memory = g_malloc(sizeof(*system_memory)); |
8417cebf | 3898 | memory_region_init(system_memory, "system", INT64_MAX); |
62152b8a | 3899 | set_system_memory_map(system_memory); |
309cb471 | 3900 | |
7267c094 | 3901 | system_io = g_malloc(sizeof(*system_io)); |
309cb471 AK |
3902 | memory_region_init(system_io, "io", 65536); |
3903 | set_system_io_map(system_io); | |
62152b8a AK |
3904 | } |
3905 | ||
3906 | MemoryRegion *get_system_memory(void) | |
3907 | { | |
3908 | return system_memory; | |
3909 | } | |
3910 | ||
309cb471 AK |
3911 | MemoryRegion *get_system_io(void) |
3912 | { | |
3913 | return system_io; | |
3914 | } | |
3915 | ||
e2eef170 PB |
3916 | #endif /* !defined(CONFIG_USER_ONLY) */ |
3917 | ||
13eb76e0 FB |
3918 | /* physical memory access (slow version, mainly for debug) */ |
3919 | #if defined(CONFIG_USER_ONLY) | |
a68fe89c PB |
3920 | int cpu_memory_rw_debug(CPUState *env, target_ulong addr, |
3921 | uint8_t *buf, int len, int is_write) | |
13eb76e0 FB |
3922 | { |
3923 | int l, flags; | |
3924 | target_ulong page; | |
53a5960a | 3925 | void * p; |
13eb76e0 FB |
3926 | |
3927 | while (len > 0) { | |
3928 | page = addr & TARGET_PAGE_MASK; | |
3929 | l = (page + TARGET_PAGE_SIZE) - addr; | |
3930 | if (l > len) | |
3931 | l = len; | |
3932 | flags = page_get_flags(page); | |
3933 | if (!(flags & PAGE_VALID)) | |
a68fe89c | 3934 | return -1; |
13eb76e0 FB |
3935 | if (is_write) { |
3936 | if (!(flags & PAGE_WRITE)) | |
a68fe89c | 3937 | return -1; |
579a97f7 | 3938 | /* XXX: this code should not depend on lock_user */ |
72fb7daa | 3939 | if (!(p = lock_user(VERIFY_WRITE, addr, l, 0))) |
a68fe89c | 3940 | return -1; |
72fb7daa AJ |
3941 | memcpy(p, buf, l); |
3942 | unlock_user(p, addr, l); | |
13eb76e0 FB |
3943 | } else { |
3944 | if (!(flags & PAGE_READ)) | |
a68fe89c | 3945 | return -1; |
579a97f7 | 3946 | /* XXX: this code should not depend on lock_user */ |
72fb7daa | 3947 | if (!(p = lock_user(VERIFY_READ, addr, l, 1))) |
a68fe89c | 3948 | return -1; |
72fb7daa | 3949 | memcpy(buf, p, l); |
5b257578 | 3950 | unlock_user(p, addr, 0); |
13eb76e0 FB |
3951 | } |
3952 | len -= l; | |
3953 | buf += l; | |
3954 | addr += l; | |
3955 | } | |
a68fe89c | 3956 | return 0; |
13eb76e0 | 3957 | } |
8df1cd07 | 3958 | |
13eb76e0 | 3959 | #else |
c227f099 | 3960 | void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf, |
13eb76e0 FB |
3961 | int len, int is_write) |
3962 | { | |
3963 | int l, io_index; | |
3964 | uint8_t *ptr; | |
3965 | uint32_t val; | |
c227f099 | 3966 | target_phys_addr_t page; |
8ca5692d | 3967 | ram_addr_t pd; |
92e873b9 | 3968 | PhysPageDesc *p; |
3b46e624 | 3969 | |
13eb76e0 FB |
3970 | while (len > 0) { |
3971 | page = addr & TARGET_PAGE_MASK; | |
3972 | l = (page + TARGET_PAGE_SIZE) - addr; | |
3973 | if (l > len) | |
3974 | l = len; | |
92e873b9 | 3975 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
13eb76e0 FB |
3976 | if (!p) { |
3977 | pd = IO_MEM_UNASSIGNED; | |
3978 | } else { | |
3979 | pd = p->phys_offset; | |
3980 | } | |
3b46e624 | 3981 | |
13eb76e0 | 3982 | if (is_write) { |
3a7d929e | 3983 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
c227f099 | 3984 | target_phys_addr_t addr1 = addr; |
13eb76e0 | 3985 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
8da3ff18 | 3986 | if (p) |
6c2934db | 3987 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
6a00d601 FB |
3988 | /* XXX: could force cpu_single_env to NULL to avoid |
3989 | potential bugs */ | |
6c2934db | 3990 | if (l >= 4 && ((addr1 & 3) == 0)) { |
1c213d19 | 3991 | /* 32 bit write access */ |
c27004ec | 3992 | val = ldl_p(buf); |
6c2934db | 3993 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr1, val); |
13eb76e0 | 3994 | l = 4; |
6c2934db | 3995 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
1c213d19 | 3996 | /* 16 bit write access */ |
c27004ec | 3997 | val = lduw_p(buf); |
6c2934db | 3998 | io_mem_write[io_index][1](io_mem_opaque[io_index], addr1, val); |
13eb76e0 FB |
3999 | l = 2; |
4000 | } else { | |
1c213d19 | 4001 | /* 8 bit write access */ |
c27004ec | 4002 | val = ldub_p(buf); |
6c2934db | 4003 | io_mem_write[io_index][0](io_mem_opaque[io_index], addr1, val); |
13eb76e0 FB |
4004 | l = 1; |
4005 | } | |
4006 | } else { | |
8ca5692d | 4007 | ram_addr_t addr1; |
b448f2f3 | 4008 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
13eb76e0 | 4009 | /* RAM case */ |
5579c7f3 | 4010 | ptr = qemu_get_ram_ptr(addr1); |
13eb76e0 | 4011 | memcpy(ptr, buf, l); |
3a7d929e FB |
4012 | if (!cpu_physical_memory_is_dirty(addr1)) { |
4013 | /* invalidate code */ | |
4014 | tb_invalidate_phys_page_range(addr1, addr1 + l, 0); | |
4015 | /* set dirty bit */ | |
f7c11b53 YT |
4016 | cpu_physical_memory_set_dirty_flags( |
4017 | addr1, (0xff & ~CODE_DIRTY_FLAG)); | |
3a7d929e | 4018 | } |
050a0ddf | 4019 | qemu_put_ram_ptr(ptr); |
13eb76e0 FB |
4020 | } |
4021 | } else { | |
5fafdf24 | 4022 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
2a4188a3 | 4023 | !(pd & IO_MEM_ROMD)) { |
c227f099 | 4024 | target_phys_addr_t addr1 = addr; |
13eb76e0 FB |
4025 | /* I/O case */ |
4026 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); | |
8da3ff18 | 4027 | if (p) |
6c2934db AJ |
4028 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
4029 | if (l >= 4 && ((addr1 & 3) == 0)) { | |
13eb76e0 | 4030 | /* 32 bit read access */ |
6c2934db | 4031 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr1); |
c27004ec | 4032 | stl_p(buf, val); |
13eb76e0 | 4033 | l = 4; |
6c2934db | 4034 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
13eb76e0 | 4035 | /* 16 bit read access */ |
6c2934db | 4036 | val = io_mem_read[io_index][1](io_mem_opaque[io_index], addr1); |
c27004ec | 4037 | stw_p(buf, val); |
13eb76e0 FB |
4038 | l = 2; |
4039 | } else { | |
1c213d19 | 4040 | /* 8 bit read access */ |
6c2934db | 4041 | val = io_mem_read[io_index][0](io_mem_opaque[io_index], addr1); |
c27004ec | 4042 | stb_p(buf, val); |
13eb76e0 FB |
4043 | l = 1; |
4044 | } | |
4045 | } else { | |
4046 | /* RAM case */ | |
050a0ddf AP |
4047 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK); |
4048 | memcpy(buf, ptr + (addr & ~TARGET_PAGE_MASK), l); | |
4049 | qemu_put_ram_ptr(ptr); | |
13eb76e0 FB |
4050 | } |
4051 | } | |
4052 | len -= l; | |
4053 | buf += l; | |
4054 | addr += l; | |
4055 | } | |
4056 | } | |
8df1cd07 | 4057 | |
d0ecd2aa | 4058 | /* used for ROM loading : can write in RAM and ROM */ |
c227f099 | 4059 | void cpu_physical_memory_write_rom(target_phys_addr_t addr, |
d0ecd2aa FB |
4060 | const uint8_t *buf, int len) |
4061 | { | |
4062 | int l; | |
4063 | uint8_t *ptr; | |
c227f099 | 4064 | target_phys_addr_t page; |
d0ecd2aa FB |
4065 | unsigned long pd; |
4066 | PhysPageDesc *p; | |
3b46e624 | 4067 | |
d0ecd2aa FB |
4068 | while (len > 0) { |
4069 | page = addr & TARGET_PAGE_MASK; | |
4070 | l = (page + TARGET_PAGE_SIZE) - addr; | |
4071 | if (l > len) | |
4072 | l = len; | |
4073 | p = phys_page_find(page >> TARGET_PAGE_BITS); | |
4074 | if (!p) { | |
4075 | pd = IO_MEM_UNASSIGNED; | |
4076 | } else { | |
4077 | pd = p->phys_offset; | |
4078 | } | |
3b46e624 | 4079 | |
d0ecd2aa | 4080 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM && |
2a4188a3 FB |
4081 | (pd & ~TARGET_PAGE_MASK) != IO_MEM_ROM && |
4082 | !(pd & IO_MEM_ROMD)) { | |
d0ecd2aa FB |
4083 | /* do nothing */ |
4084 | } else { | |
4085 | unsigned long addr1; | |
4086 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); | |
4087 | /* ROM/RAM case */ | |
5579c7f3 | 4088 | ptr = qemu_get_ram_ptr(addr1); |
d0ecd2aa | 4089 | memcpy(ptr, buf, l); |
050a0ddf | 4090 | qemu_put_ram_ptr(ptr); |
d0ecd2aa FB |
4091 | } |
4092 | len -= l; | |
4093 | buf += l; | |
4094 | addr += l; | |
4095 | } | |
4096 | } | |
4097 | ||
6d16c2f8 AL |
4098 | typedef struct { |
4099 | void *buffer; | |
c227f099 AL |
4100 | target_phys_addr_t addr; |
4101 | target_phys_addr_t len; | |
6d16c2f8 AL |
4102 | } BounceBuffer; |
4103 | ||
4104 | static BounceBuffer bounce; | |
4105 | ||
ba223c29 AL |
4106 | typedef struct MapClient { |
4107 | void *opaque; | |
4108 | void (*callback)(void *opaque); | |
72cf2d4f | 4109 | QLIST_ENTRY(MapClient) link; |
ba223c29 AL |
4110 | } MapClient; |
4111 | ||
72cf2d4f BS |
4112 | static QLIST_HEAD(map_client_list, MapClient) map_client_list |
4113 | = QLIST_HEAD_INITIALIZER(map_client_list); | |
ba223c29 AL |
4114 | |
4115 | void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque)) | |
4116 | { | |
7267c094 | 4117 | MapClient *client = g_malloc(sizeof(*client)); |
ba223c29 AL |
4118 | |
4119 | client->opaque = opaque; | |
4120 | client->callback = callback; | |
72cf2d4f | 4121 | QLIST_INSERT_HEAD(&map_client_list, client, link); |
ba223c29 AL |
4122 | return client; |
4123 | } | |
4124 | ||
4125 | void cpu_unregister_map_client(void *_client) | |
4126 | { | |
4127 | MapClient *client = (MapClient *)_client; | |
4128 | ||
72cf2d4f | 4129 | QLIST_REMOVE(client, link); |
7267c094 | 4130 | g_free(client); |
ba223c29 AL |
4131 | } |
4132 | ||
4133 | static void cpu_notify_map_clients(void) | |
4134 | { | |
4135 | MapClient *client; | |
4136 | ||
72cf2d4f BS |
4137 | while (!QLIST_EMPTY(&map_client_list)) { |
4138 | client = QLIST_FIRST(&map_client_list); | |
ba223c29 | 4139 | client->callback(client->opaque); |
34d5e948 | 4140 | cpu_unregister_map_client(client); |
ba223c29 AL |
4141 | } |
4142 | } | |
4143 | ||
6d16c2f8 AL |
4144 | /* Map a physical memory region into a host virtual address. |
4145 | * May map a subset of the requested range, given by and returned in *plen. | |
4146 | * May return NULL if resources needed to perform the mapping are exhausted. | |
4147 | * Use only for reads OR writes - not for read-modify-write operations. | |
ba223c29 AL |
4148 | * Use cpu_register_map_client() to know when retrying the map operation is |
4149 | * likely to succeed. | |
6d16c2f8 | 4150 | */ |
c227f099 AL |
4151 | void *cpu_physical_memory_map(target_phys_addr_t addr, |
4152 | target_phys_addr_t *plen, | |
6d16c2f8 AL |
4153 | int is_write) |
4154 | { | |
c227f099 | 4155 | target_phys_addr_t len = *plen; |
38bee5dc | 4156 | target_phys_addr_t todo = 0; |
6d16c2f8 | 4157 | int l; |
c227f099 | 4158 | target_phys_addr_t page; |
6d16c2f8 AL |
4159 | unsigned long pd; |
4160 | PhysPageDesc *p; | |
f15fbc4b | 4161 | ram_addr_t raddr = RAM_ADDR_MAX; |
8ab934f9 SS |
4162 | ram_addr_t rlen; |
4163 | void *ret; | |
6d16c2f8 AL |
4164 | |
4165 | while (len > 0) { | |
4166 | page = addr & TARGET_PAGE_MASK; | |
4167 | l = (page + TARGET_PAGE_SIZE) - addr; | |
4168 | if (l > len) | |
4169 | l = len; | |
4170 | p = phys_page_find(page >> TARGET_PAGE_BITS); | |
4171 | if (!p) { | |
4172 | pd = IO_MEM_UNASSIGNED; | |
4173 | } else { | |
4174 | pd = p->phys_offset; | |
4175 | } | |
4176 | ||
4177 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { | |
38bee5dc | 4178 | if (todo || bounce.buffer) { |
6d16c2f8 AL |
4179 | break; |
4180 | } | |
4181 | bounce.buffer = qemu_memalign(TARGET_PAGE_SIZE, TARGET_PAGE_SIZE); | |
4182 | bounce.addr = addr; | |
4183 | bounce.len = l; | |
4184 | if (!is_write) { | |
54f7b4a3 | 4185 | cpu_physical_memory_read(addr, bounce.buffer, l); |
6d16c2f8 | 4186 | } |
38bee5dc SS |
4187 | |
4188 | *plen = l; | |
4189 | return bounce.buffer; | |
6d16c2f8 | 4190 | } |
8ab934f9 SS |
4191 | if (!todo) { |
4192 | raddr = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); | |
4193 | } | |
6d16c2f8 AL |
4194 | |
4195 | len -= l; | |
4196 | addr += l; | |
38bee5dc | 4197 | todo += l; |
6d16c2f8 | 4198 | } |
8ab934f9 SS |
4199 | rlen = todo; |
4200 | ret = qemu_ram_ptr_length(raddr, &rlen); | |
4201 | *plen = rlen; | |
4202 | return ret; | |
6d16c2f8 AL |
4203 | } |
4204 | ||
4205 | /* Unmaps a memory region previously mapped by cpu_physical_memory_map(). | |
4206 | * Will also mark the memory as dirty if is_write == 1. access_len gives | |
4207 | * the amount of memory that was actually read or written by the caller. | |
4208 | */ | |
c227f099 AL |
4209 | void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len, |
4210 | int is_write, target_phys_addr_t access_len) | |
6d16c2f8 AL |
4211 | { |
4212 | if (buffer != bounce.buffer) { | |
4213 | if (is_write) { | |
e890261f | 4214 | ram_addr_t addr1 = qemu_ram_addr_from_host_nofail(buffer); |
6d16c2f8 AL |
4215 | while (access_len) { |
4216 | unsigned l; | |
4217 | l = TARGET_PAGE_SIZE; | |
4218 | if (l > access_len) | |
4219 | l = access_len; | |
4220 | if (!cpu_physical_memory_is_dirty(addr1)) { | |
4221 | /* invalidate code */ | |
4222 | tb_invalidate_phys_page_range(addr1, addr1 + l, 0); | |
4223 | /* set dirty bit */ | |
f7c11b53 YT |
4224 | cpu_physical_memory_set_dirty_flags( |
4225 | addr1, (0xff & ~CODE_DIRTY_FLAG)); | |
6d16c2f8 AL |
4226 | } |
4227 | addr1 += l; | |
4228 | access_len -= l; | |
4229 | } | |
4230 | } | |
868bb33f | 4231 | if (xen_enabled()) { |
e41d7c69 | 4232 | xen_invalidate_map_cache_entry(buffer); |
050a0ddf | 4233 | } |
6d16c2f8 AL |
4234 | return; |
4235 | } | |
4236 | if (is_write) { | |
4237 | cpu_physical_memory_write(bounce.addr, bounce.buffer, access_len); | |
4238 | } | |
f8a83245 | 4239 | qemu_vfree(bounce.buffer); |
6d16c2f8 | 4240 | bounce.buffer = NULL; |
ba223c29 | 4241 | cpu_notify_map_clients(); |
6d16c2f8 | 4242 | } |
d0ecd2aa | 4243 | |
8df1cd07 | 4244 | /* warning: addr must be aligned */ |
1e78bcc1 AG |
4245 | static inline uint32_t ldl_phys_internal(target_phys_addr_t addr, |
4246 | enum device_endian endian) | |
8df1cd07 FB |
4247 | { |
4248 | int io_index; | |
4249 | uint8_t *ptr; | |
4250 | uint32_t val; | |
4251 | unsigned long pd; | |
4252 | PhysPageDesc *p; | |
4253 | ||
4254 | p = phys_page_find(addr >> TARGET_PAGE_BITS); | |
4255 | if (!p) { | |
4256 | pd = IO_MEM_UNASSIGNED; | |
4257 | } else { | |
4258 | pd = p->phys_offset; | |
4259 | } | |
3b46e624 | 4260 | |
5fafdf24 | 4261 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
2a4188a3 | 4262 | !(pd & IO_MEM_ROMD)) { |
8df1cd07 FB |
4263 | /* I/O case */ |
4264 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); | |
8da3ff18 PB |
4265 | if (p) |
4266 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; | |
8df1cd07 | 4267 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr); |
1e78bcc1 AG |
4268 | #if defined(TARGET_WORDS_BIGENDIAN) |
4269 | if (endian == DEVICE_LITTLE_ENDIAN) { | |
4270 | val = bswap32(val); | |
4271 | } | |
4272 | #else | |
4273 | if (endian == DEVICE_BIG_ENDIAN) { | |
4274 | val = bswap32(val); | |
4275 | } | |
4276 | #endif | |
8df1cd07 FB |
4277 | } else { |
4278 | /* RAM case */ | |
5579c7f3 | 4279 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
8df1cd07 | 4280 | (addr & ~TARGET_PAGE_MASK); |
1e78bcc1 AG |
4281 | switch (endian) { |
4282 | case DEVICE_LITTLE_ENDIAN: | |
4283 | val = ldl_le_p(ptr); | |
4284 | break; | |
4285 | case DEVICE_BIG_ENDIAN: | |
4286 | val = ldl_be_p(ptr); | |
4287 | break; | |
4288 | default: | |
4289 | val = ldl_p(ptr); | |
4290 | break; | |
4291 | } | |
8df1cd07 FB |
4292 | } |
4293 | return val; | |
4294 | } | |
4295 | ||
1e78bcc1 AG |
4296 | uint32_t ldl_phys(target_phys_addr_t addr) |
4297 | { | |
4298 | return ldl_phys_internal(addr, DEVICE_NATIVE_ENDIAN); | |
4299 | } | |
4300 | ||
4301 | uint32_t ldl_le_phys(target_phys_addr_t addr) | |
4302 | { | |
4303 | return ldl_phys_internal(addr, DEVICE_LITTLE_ENDIAN); | |
4304 | } | |
4305 | ||
4306 | uint32_t ldl_be_phys(target_phys_addr_t addr) | |
4307 | { | |
4308 | return ldl_phys_internal(addr, DEVICE_BIG_ENDIAN); | |
4309 | } | |
4310 | ||
84b7b8e7 | 4311 | /* warning: addr must be aligned */ |
1e78bcc1 AG |
4312 | static inline uint64_t ldq_phys_internal(target_phys_addr_t addr, |
4313 | enum device_endian endian) | |
84b7b8e7 FB |
4314 | { |
4315 | int io_index; | |
4316 | uint8_t *ptr; | |
4317 | uint64_t val; | |
4318 | unsigned long pd; | |
4319 | PhysPageDesc *p; | |
4320 | ||
4321 | p = phys_page_find(addr >> TARGET_PAGE_BITS); | |
4322 | if (!p) { | |
4323 | pd = IO_MEM_UNASSIGNED; | |
4324 | } else { | |
4325 | pd = p->phys_offset; | |
4326 | } | |
3b46e624 | 4327 | |
2a4188a3 FB |
4328 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
4329 | !(pd & IO_MEM_ROMD)) { | |
84b7b8e7 FB |
4330 | /* I/O case */ |
4331 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); | |
8da3ff18 PB |
4332 | if (p) |
4333 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; | |
1e78bcc1 AG |
4334 | |
4335 | /* XXX This is broken when device endian != cpu endian. | |
4336 | Fix and add "endian" variable check */ | |
84b7b8e7 FB |
4337 | #ifdef TARGET_WORDS_BIGENDIAN |
4338 | val = (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr) << 32; | |
4339 | val |= io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4); | |
4340 | #else | |
4341 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr); | |
4342 | val |= (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4) << 32; | |
4343 | #endif | |
4344 | } else { | |
4345 | /* RAM case */ | |
5579c7f3 | 4346 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
84b7b8e7 | 4347 | (addr & ~TARGET_PAGE_MASK); |
1e78bcc1 AG |
4348 | switch (endian) { |
4349 | case DEVICE_LITTLE_ENDIAN: | |
4350 | val = ldq_le_p(ptr); | |
4351 | break; | |
4352 | case DEVICE_BIG_ENDIAN: | |
4353 | val = ldq_be_p(ptr); | |
4354 | break; | |
4355 | default: | |
4356 | val = ldq_p(ptr); | |
4357 | break; | |
4358 | } | |
84b7b8e7 FB |
4359 | } |
4360 | return val; | |
4361 | } | |
4362 | ||
1e78bcc1 AG |
4363 | uint64_t ldq_phys(target_phys_addr_t addr) |
4364 | { | |
4365 | return ldq_phys_internal(addr, DEVICE_NATIVE_ENDIAN); | |
4366 | } | |
4367 | ||
4368 | uint64_t ldq_le_phys(target_phys_addr_t addr) | |
4369 | { | |
4370 | return ldq_phys_internal(addr, DEVICE_LITTLE_ENDIAN); | |
4371 | } | |
4372 | ||
4373 | uint64_t ldq_be_phys(target_phys_addr_t addr) | |
4374 | { | |
4375 | return ldq_phys_internal(addr, DEVICE_BIG_ENDIAN); | |
4376 | } | |
4377 | ||
aab33094 | 4378 | /* XXX: optimize */ |
c227f099 | 4379 | uint32_t ldub_phys(target_phys_addr_t addr) |
aab33094 FB |
4380 | { |
4381 | uint8_t val; | |
4382 | cpu_physical_memory_read(addr, &val, 1); | |
4383 | return val; | |
4384 | } | |
4385 | ||
733f0b02 | 4386 | /* warning: addr must be aligned */ |
1e78bcc1 AG |
4387 | static inline uint32_t lduw_phys_internal(target_phys_addr_t addr, |
4388 | enum device_endian endian) | |
aab33094 | 4389 | { |
733f0b02 MT |
4390 | int io_index; |
4391 | uint8_t *ptr; | |
4392 | uint64_t val; | |
4393 | unsigned long pd; | |
4394 | PhysPageDesc *p; | |
4395 | ||
4396 | p = phys_page_find(addr >> TARGET_PAGE_BITS); | |
4397 | if (!p) { | |
4398 | pd = IO_MEM_UNASSIGNED; | |
4399 | } else { | |
4400 | pd = p->phys_offset; | |
4401 | } | |
4402 | ||
4403 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && | |
4404 | !(pd & IO_MEM_ROMD)) { | |
4405 | /* I/O case */ | |
4406 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); | |
4407 | if (p) | |
4408 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; | |
4409 | val = io_mem_read[io_index][1](io_mem_opaque[io_index], addr); | |
1e78bcc1 AG |
4410 | #if defined(TARGET_WORDS_BIGENDIAN) |
4411 | if (endian == DEVICE_LITTLE_ENDIAN) { | |
4412 | val = bswap16(val); | |
4413 | } | |
4414 | #else | |
4415 | if (endian == DEVICE_BIG_ENDIAN) { | |
4416 | val = bswap16(val); | |
4417 | } | |
4418 | #endif | |
733f0b02 MT |
4419 | } else { |
4420 | /* RAM case */ | |
4421 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + | |
4422 | (addr & ~TARGET_PAGE_MASK); | |
1e78bcc1 AG |
4423 | switch (endian) { |
4424 | case DEVICE_LITTLE_ENDIAN: | |
4425 | val = lduw_le_p(ptr); | |
4426 | break; | |
4427 | case DEVICE_BIG_ENDIAN: | |
4428 | val = lduw_be_p(ptr); | |
4429 | break; | |
4430 | default: | |
4431 | val = lduw_p(ptr); | |
4432 | break; | |
4433 | } | |
733f0b02 MT |
4434 | } |
4435 | return val; | |
aab33094 FB |
4436 | } |
4437 | ||
1e78bcc1 AG |
4438 | uint32_t lduw_phys(target_phys_addr_t addr) |
4439 | { | |
4440 | return lduw_phys_internal(addr, DEVICE_NATIVE_ENDIAN); | |
4441 | } | |
4442 | ||
4443 | uint32_t lduw_le_phys(target_phys_addr_t addr) | |
4444 | { | |
4445 | return lduw_phys_internal(addr, DEVICE_LITTLE_ENDIAN); | |
4446 | } | |
4447 | ||
4448 | uint32_t lduw_be_phys(target_phys_addr_t addr) | |
4449 | { | |
4450 | return lduw_phys_internal(addr, DEVICE_BIG_ENDIAN); | |
4451 | } | |
4452 | ||
8df1cd07 FB |
4453 | /* warning: addr must be aligned. The ram page is not masked as dirty |
4454 | and the code inside is not invalidated. It is useful if the dirty | |
4455 | bits are used to track modified PTEs */ | |
c227f099 | 4456 | void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val) |
8df1cd07 FB |
4457 | { |
4458 | int io_index; | |
4459 | uint8_t *ptr; | |
4460 | unsigned long pd; | |
4461 | PhysPageDesc *p; | |
4462 | ||
4463 | p = phys_page_find(addr >> TARGET_PAGE_BITS); | |
4464 | if (!p) { | |
4465 | pd = IO_MEM_UNASSIGNED; | |
4466 | } else { | |
4467 | pd = p->phys_offset; | |
4468 | } | |
3b46e624 | 4469 | |
3a7d929e | 4470 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
8df1cd07 | 4471 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
8da3ff18 PB |
4472 | if (p) |
4473 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; | |
8df1cd07 FB |
4474 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); |
4475 | } else { | |
74576198 | 4476 | unsigned long addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
5579c7f3 | 4477 | ptr = qemu_get_ram_ptr(addr1); |
8df1cd07 | 4478 | stl_p(ptr, val); |
74576198 AL |
4479 | |
4480 | if (unlikely(in_migration)) { | |
4481 | if (!cpu_physical_memory_is_dirty(addr1)) { | |
4482 | /* invalidate code */ | |
4483 | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); | |
4484 | /* set dirty bit */ | |
f7c11b53 YT |
4485 | cpu_physical_memory_set_dirty_flags( |
4486 | addr1, (0xff & ~CODE_DIRTY_FLAG)); | |
74576198 AL |
4487 | } |
4488 | } | |
8df1cd07 FB |
4489 | } |
4490 | } | |
4491 | ||
c227f099 | 4492 | void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val) |
bc98a7ef JM |
4493 | { |
4494 | int io_index; | |
4495 | uint8_t *ptr; | |
4496 | unsigned long pd; | |
4497 | PhysPageDesc *p; | |
4498 | ||
4499 | p = phys_page_find(addr >> TARGET_PAGE_BITS); | |
4500 | if (!p) { | |
4501 | pd = IO_MEM_UNASSIGNED; | |
4502 | } else { | |
4503 | pd = p->phys_offset; | |
4504 | } | |
3b46e624 | 4505 | |
bc98a7ef JM |
4506 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
4507 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); | |
8da3ff18 PB |
4508 | if (p) |
4509 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; | |
bc98a7ef JM |
4510 | #ifdef TARGET_WORDS_BIGENDIAN |
4511 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val >> 32); | |
4512 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val); | |
4513 | #else | |
4514 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); | |
4515 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val >> 32); | |
4516 | #endif | |
4517 | } else { | |
5579c7f3 | 4518 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
bc98a7ef JM |
4519 | (addr & ~TARGET_PAGE_MASK); |
4520 | stq_p(ptr, val); | |
4521 | } | |
4522 | } | |
4523 | ||
8df1cd07 | 4524 | /* warning: addr must be aligned */ |
1e78bcc1 AG |
4525 | static inline void stl_phys_internal(target_phys_addr_t addr, uint32_t val, |
4526 | enum device_endian endian) | |
8df1cd07 FB |
4527 | { |
4528 | int io_index; | |
4529 | uint8_t *ptr; | |
4530 | unsigned long pd; | |
4531 | PhysPageDesc *p; | |
4532 | ||
4533 | p = phys_page_find(addr >> TARGET_PAGE_BITS); | |
4534 | if (!p) { | |
4535 | pd = IO_MEM_UNASSIGNED; | |
4536 | } else { | |
4537 | pd = p->phys_offset; | |
4538 | } | |
3b46e624 | 4539 | |
3a7d929e | 4540 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
8df1cd07 | 4541 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
8da3ff18 PB |
4542 | if (p) |
4543 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; | |
1e78bcc1 AG |
4544 | #if defined(TARGET_WORDS_BIGENDIAN) |
4545 | if (endian == DEVICE_LITTLE_ENDIAN) { | |
4546 | val = bswap32(val); | |
4547 | } | |
4548 | #else | |
4549 | if (endian == DEVICE_BIG_ENDIAN) { | |
4550 | val = bswap32(val); | |
4551 | } | |
4552 | #endif | |
8df1cd07 FB |
4553 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); |
4554 | } else { | |
4555 | unsigned long addr1; | |
4556 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); | |
4557 | /* RAM case */ | |
5579c7f3 | 4558 | ptr = qemu_get_ram_ptr(addr1); |
1e78bcc1 AG |
4559 | switch (endian) { |
4560 | case DEVICE_LITTLE_ENDIAN: | |
4561 | stl_le_p(ptr, val); | |
4562 | break; | |
4563 | case DEVICE_BIG_ENDIAN: | |
4564 | stl_be_p(ptr, val); | |
4565 | break; | |
4566 | default: | |
4567 | stl_p(ptr, val); | |
4568 | break; | |
4569 | } | |
3a7d929e FB |
4570 | if (!cpu_physical_memory_is_dirty(addr1)) { |
4571 | /* invalidate code */ | |
4572 | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); | |
4573 | /* set dirty bit */ | |
f7c11b53 YT |
4574 | cpu_physical_memory_set_dirty_flags(addr1, |
4575 | (0xff & ~CODE_DIRTY_FLAG)); | |
3a7d929e | 4576 | } |
8df1cd07 FB |
4577 | } |
4578 | } | |
4579 | ||
1e78bcc1 AG |
4580 | void stl_phys(target_phys_addr_t addr, uint32_t val) |
4581 | { | |
4582 | stl_phys_internal(addr, val, DEVICE_NATIVE_ENDIAN); | |
4583 | } | |
4584 | ||
4585 | void stl_le_phys(target_phys_addr_t addr, uint32_t val) | |
4586 | { | |
4587 | stl_phys_internal(addr, val, DEVICE_LITTLE_ENDIAN); | |
4588 | } | |
4589 | ||
4590 | void stl_be_phys(target_phys_addr_t addr, uint32_t val) | |
4591 | { | |
4592 | stl_phys_internal(addr, val, DEVICE_BIG_ENDIAN); | |
4593 | } | |
4594 | ||
aab33094 | 4595 | /* XXX: optimize */ |
c227f099 | 4596 | void stb_phys(target_phys_addr_t addr, uint32_t val) |
aab33094 FB |
4597 | { |
4598 | uint8_t v = val; | |
4599 | cpu_physical_memory_write(addr, &v, 1); | |
4600 | } | |
4601 | ||
733f0b02 | 4602 | /* warning: addr must be aligned */ |
1e78bcc1 AG |
4603 | static inline void stw_phys_internal(target_phys_addr_t addr, uint32_t val, |
4604 | enum device_endian endian) | |
aab33094 | 4605 | { |
733f0b02 MT |
4606 | int io_index; |
4607 | uint8_t *ptr; | |
4608 | unsigned long pd; | |
4609 | PhysPageDesc *p; | |
4610 | ||
4611 | p = phys_page_find(addr >> TARGET_PAGE_BITS); | |
4612 | if (!p) { | |
4613 | pd = IO_MEM_UNASSIGNED; | |
4614 | } else { | |
4615 | pd = p->phys_offset; | |
4616 | } | |
4617 | ||
4618 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { | |
4619 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); | |
4620 | if (p) | |
4621 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; | |
1e78bcc1 AG |
4622 | #if defined(TARGET_WORDS_BIGENDIAN) |
4623 | if (endian == DEVICE_LITTLE_ENDIAN) { | |
4624 | val = bswap16(val); | |
4625 | } | |
4626 | #else | |
4627 | if (endian == DEVICE_BIG_ENDIAN) { | |
4628 | val = bswap16(val); | |
4629 | } | |
4630 | #endif | |
733f0b02 MT |
4631 | io_mem_write[io_index][1](io_mem_opaque[io_index], addr, val); |
4632 | } else { | |
4633 | unsigned long addr1; | |
4634 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); | |
4635 | /* RAM case */ | |
4636 | ptr = qemu_get_ram_ptr(addr1); | |
1e78bcc1 AG |
4637 | switch (endian) { |
4638 | case DEVICE_LITTLE_ENDIAN: | |
4639 | stw_le_p(ptr, val); | |
4640 | break; | |
4641 | case DEVICE_BIG_ENDIAN: | |
4642 | stw_be_p(ptr, val); | |
4643 | break; | |
4644 | default: | |
4645 | stw_p(ptr, val); | |
4646 | break; | |
4647 | } | |
733f0b02 MT |
4648 | if (!cpu_physical_memory_is_dirty(addr1)) { |
4649 | /* invalidate code */ | |
4650 | tb_invalidate_phys_page_range(addr1, addr1 + 2, 0); | |
4651 | /* set dirty bit */ | |
4652 | cpu_physical_memory_set_dirty_flags(addr1, | |
4653 | (0xff & ~CODE_DIRTY_FLAG)); | |
4654 | } | |
4655 | } | |
aab33094 FB |
4656 | } |
4657 | ||
1e78bcc1 AG |
4658 | void stw_phys(target_phys_addr_t addr, uint32_t val) |
4659 | { | |
4660 | stw_phys_internal(addr, val, DEVICE_NATIVE_ENDIAN); | |
4661 | } | |
4662 | ||
4663 | void stw_le_phys(target_phys_addr_t addr, uint32_t val) | |
4664 | { | |
4665 | stw_phys_internal(addr, val, DEVICE_LITTLE_ENDIAN); | |
4666 | } | |
4667 | ||
4668 | void stw_be_phys(target_phys_addr_t addr, uint32_t val) | |
4669 | { | |
4670 | stw_phys_internal(addr, val, DEVICE_BIG_ENDIAN); | |
4671 | } | |
4672 | ||
aab33094 | 4673 | /* XXX: optimize */ |
c227f099 | 4674 | void stq_phys(target_phys_addr_t addr, uint64_t val) |
aab33094 FB |
4675 | { |
4676 | val = tswap64(val); | |
71d2b725 | 4677 | cpu_physical_memory_write(addr, &val, 8); |
aab33094 FB |
4678 | } |
4679 | ||
1e78bcc1 AG |
4680 | void stq_le_phys(target_phys_addr_t addr, uint64_t val) |
4681 | { | |
4682 | val = cpu_to_le64(val); | |
4683 | cpu_physical_memory_write(addr, &val, 8); | |
4684 | } | |
4685 | ||
4686 | void stq_be_phys(target_phys_addr_t addr, uint64_t val) | |
4687 | { | |
4688 | val = cpu_to_be64(val); | |
4689 | cpu_physical_memory_write(addr, &val, 8); | |
4690 | } | |
4691 | ||
5e2972fd | 4692 | /* virtual memory access for debug (includes writing to ROM) */ |
5fafdf24 | 4693 | int cpu_memory_rw_debug(CPUState *env, target_ulong addr, |
b448f2f3 | 4694 | uint8_t *buf, int len, int is_write) |
13eb76e0 FB |
4695 | { |
4696 | int l; | |
c227f099 | 4697 | target_phys_addr_t phys_addr; |
9b3c35e0 | 4698 | target_ulong page; |
13eb76e0 FB |
4699 | |
4700 | while (len > 0) { | |
4701 | page = addr & TARGET_PAGE_MASK; | |
4702 | phys_addr = cpu_get_phys_page_debug(env, page); | |
4703 | /* if no physical page mapped, return an error */ | |
4704 | if (phys_addr == -1) | |
4705 | return -1; | |
4706 | l = (page + TARGET_PAGE_SIZE) - addr; | |
4707 | if (l > len) | |
4708 | l = len; | |
5e2972fd | 4709 | phys_addr += (addr & ~TARGET_PAGE_MASK); |
5e2972fd AL |
4710 | if (is_write) |
4711 | cpu_physical_memory_write_rom(phys_addr, buf, l); | |
4712 | else | |
5e2972fd | 4713 | cpu_physical_memory_rw(phys_addr, buf, l, is_write); |
13eb76e0 FB |
4714 | len -= l; |
4715 | buf += l; | |
4716 | addr += l; | |
4717 | } | |
4718 | return 0; | |
4719 | } | |
a68fe89c | 4720 | #endif |
13eb76e0 | 4721 | |
2e70f6ef PB |
4722 | /* in deterministic execution mode, instructions doing device I/Os |
4723 | must be at the end of the TB */ | |
4724 | void cpu_io_recompile(CPUState *env, void *retaddr) | |
4725 | { | |
4726 | TranslationBlock *tb; | |
4727 | uint32_t n, cflags; | |
4728 | target_ulong pc, cs_base; | |
4729 | uint64_t flags; | |
4730 | ||
4731 | tb = tb_find_pc((unsigned long)retaddr); | |
4732 | if (!tb) { | |
4733 | cpu_abort(env, "cpu_io_recompile: could not find TB for pc=%p", | |
4734 | retaddr); | |
4735 | } | |
4736 | n = env->icount_decr.u16.low + tb->icount; | |
618ba8e6 | 4737 | cpu_restore_state(tb, env, (unsigned long)retaddr); |
2e70f6ef | 4738 | /* Calculate how many instructions had been executed before the fault |
bf20dc07 | 4739 | occurred. */ |
2e70f6ef PB |
4740 | n = n - env->icount_decr.u16.low; |
4741 | /* Generate a new TB ending on the I/O insn. */ | |
4742 | n++; | |
4743 | /* On MIPS and SH, delay slot instructions can only be restarted if | |
4744 | they were already the first instruction in the TB. If this is not | |
bf20dc07 | 4745 | the first instruction in a TB then re-execute the preceding |
2e70f6ef PB |
4746 | branch. */ |
4747 | #if defined(TARGET_MIPS) | |
4748 | if ((env->hflags & MIPS_HFLAG_BMASK) != 0 && n > 1) { | |
4749 | env->active_tc.PC -= 4; | |
4750 | env->icount_decr.u16.low++; | |
4751 | env->hflags &= ~MIPS_HFLAG_BMASK; | |
4752 | } | |
4753 | #elif defined(TARGET_SH4) | |
4754 | if ((env->flags & ((DELAY_SLOT | DELAY_SLOT_CONDITIONAL))) != 0 | |
4755 | && n > 1) { | |
4756 | env->pc -= 2; | |
4757 | env->icount_decr.u16.low++; | |
4758 | env->flags &= ~(DELAY_SLOT | DELAY_SLOT_CONDITIONAL); | |
4759 | } | |
4760 | #endif | |
4761 | /* This should never happen. */ | |
4762 | if (n > CF_COUNT_MASK) | |
4763 | cpu_abort(env, "TB too big during recompile"); | |
4764 | ||
4765 | cflags = n | CF_LAST_IO; | |
4766 | pc = tb->pc; | |
4767 | cs_base = tb->cs_base; | |
4768 | flags = tb->flags; | |
4769 | tb_phys_invalidate(tb, -1); | |
4770 | /* FIXME: In theory this could raise an exception. In practice | |
4771 | we have already translated the block once so it's probably ok. */ | |
4772 | tb_gen_code(env, pc, cs_base, flags, cflags); | |
bf20dc07 | 4773 | /* TODO: If env->pc != tb->pc (i.e. the faulting instruction was not |
2e70f6ef PB |
4774 | the first in the TB) then we end up generating a whole new TB and |
4775 | repeating the fault, which is horribly inefficient. | |
4776 | Better would be to execute just this insn uncached, or generate a | |
4777 | second new TB. */ | |
4778 | cpu_resume_from_signal(env, NULL); | |
4779 | } | |
4780 | ||
b3755a91 PB |
4781 | #if !defined(CONFIG_USER_ONLY) |
4782 | ||
055403b2 | 4783 | void dump_exec_info(FILE *f, fprintf_function cpu_fprintf) |
e3db7226 FB |
4784 | { |
4785 | int i, target_code_size, max_target_code_size; | |
4786 | int direct_jmp_count, direct_jmp2_count, cross_page; | |
4787 | TranslationBlock *tb; | |
3b46e624 | 4788 | |
e3db7226 FB |
4789 | target_code_size = 0; |
4790 | max_target_code_size = 0; | |
4791 | cross_page = 0; | |
4792 | direct_jmp_count = 0; | |
4793 | direct_jmp2_count = 0; | |
4794 | for(i = 0; i < nb_tbs; i++) { | |
4795 | tb = &tbs[i]; | |
4796 | target_code_size += tb->size; | |
4797 | if (tb->size > max_target_code_size) | |
4798 | max_target_code_size = tb->size; | |
4799 | if (tb->page_addr[1] != -1) | |
4800 | cross_page++; | |
4801 | if (tb->tb_next_offset[0] != 0xffff) { | |
4802 | direct_jmp_count++; | |
4803 | if (tb->tb_next_offset[1] != 0xffff) { | |
4804 | direct_jmp2_count++; | |
4805 | } | |
4806 | } | |
4807 | } | |
4808 | /* XXX: avoid using doubles ? */ | |
57fec1fe | 4809 | cpu_fprintf(f, "Translation buffer state:\n"); |
055403b2 | 4810 | cpu_fprintf(f, "gen code size %td/%ld\n", |
26a5f13b FB |
4811 | code_gen_ptr - code_gen_buffer, code_gen_buffer_max_size); |
4812 | cpu_fprintf(f, "TB count %d/%d\n", | |
4813 | nb_tbs, code_gen_max_blocks); | |
5fafdf24 | 4814 | cpu_fprintf(f, "TB avg target size %d max=%d bytes\n", |
e3db7226 FB |
4815 | nb_tbs ? target_code_size / nb_tbs : 0, |
4816 | max_target_code_size); | |
055403b2 | 4817 | cpu_fprintf(f, "TB avg host size %td bytes (expansion ratio: %0.1f)\n", |
e3db7226 FB |
4818 | nb_tbs ? (code_gen_ptr - code_gen_buffer) / nb_tbs : 0, |
4819 | target_code_size ? (double) (code_gen_ptr - code_gen_buffer) / target_code_size : 0); | |
5fafdf24 TS |
4820 | cpu_fprintf(f, "cross page TB count %d (%d%%)\n", |
4821 | cross_page, | |
e3db7226 FB |
4822 | nb_tbs ? (cross_page * 100) / nb_tbs : 0); |
4823 | cpu_fprintf(f, "direct jump count %d (%d%%) (2 jumps=%d %d%%)\n", | |
5fafdf24 | 4824 | direct_jmp_count, |
e3db7226 FB |
4825 | nb_tbs ? (direct_jmp_count * 100) / nb_tbs : 0, |
4826 | direct_jmp2_count, | |
4827 | nb_tbs ? (direct_jmp2_count * 100) / nb_tbs : 0); | |
57fec1fe | 4828 | cpu_fprintf(f, "\nStatistics:\n"); |
e3db7226 FB |
4829 | cpu_fprintf(f, "TB flush count %d\n", tb_flush_count); |
4830 | cpu_fprintf(f, "TB invalidate count %d\n", tb_phys_invalidate_count); | |
4831 | cpu_fprintf(f, "TLB flush count %d\n", tlb_flush_count); | |
b67d9a52 | 4832 | tcg_dump_info(f, cpu_fprintf); |
e3db7226 FB |
4833 | } |
4834 | ||
61382a50 | 4835 | #define MMUSUFFIX _cmmu |
3917149d | 4836 | #undef GETPC |
61382a50 FB |
4837 | #define GETPC() NULL |
4838 | #define env cpu_single_env | |
b769d8fe | 4839 | #define SOFTMMU_CODE_ACCESS |
61382a50 FB |
4840 | |
4841 | #define SHIFT 0 | |
4842 | #include "softmmu_template.h" | |
4843 | ||
4844 | #define SHIFT 1 | |
4845 | #include "softmmu_template.h" | |
4846 | ||
4847 | #define SHIFT 2 | |
4848 | #include "softmmu_template.h" | |
4849 | ||
4850 | #define SHIFT 3 | |
4851 | #include "softmmu_template.h" | |
4852 | ||
4853 | #undef env | |
4854 | ||
4855 | #endif |