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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 | |
0cac1b66 BS |
60 | #include "cputlb.h" |
61 | ||
67d95c15 AK |
62 | #define WANT_EXEC_OBSOLETE |
63 | #include "exec-obsolete.h" | |
64 | ||
fd6ce8f6 | 65 | //#define DEBUG_TB_INVALIDATE |
66e85a21 | 66 | //#define DEBUG_FLUSH |
67d3b957 | 67 | //#define DEBUG_UNASSIGNED |
fd6ce8f6 FB |
68 | |
69 | /* make various TB consistency checks */ | |
5fafdf24 | 70 | //#define DEBUG_TB_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 | |
181dd0b2 | 89 | #if defined(__arm__) || defined(__sparc__) |
141ac468 BS |
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))) | |
6840981d | 96 | #elif defined(_WIN32) && !defined(_WIN64) |
f8e2af11 SW |
97 | #define code_gen_section \ |
98 | __attribute__((aligned (16))) | |
d03d860b BS |
99 | #else |
100 | #define code_gen_section \ | |
101 | __attribute__((aligned (32))) | |
102 | #endif | |
103 | ||
104 | uint8_t code_gen_prologue[1024] code_gen_section; | |
bdaf78e0 BS |
105 | static uint8_t *code_gen_buffer; |
106 | static unsigned long code_gen_buffer_size; | |
26a5f13b | 107 | /* threshold to flush the translated code buffer */ |
bdaf78e0 | 108 | static unsigned long code_gen_buffer_max_size; |
24ab68ac | 109 | static uint8_t *code_gen_ptr; |
fd6ce8f6 | 110 | |
e2eef170 | 111 | #if !defined(CONFIG_USER_ONLY) |
9fa3e853 | 112 | int phys_ram_fd; |
74576198 | 113 | static int in_migration; |
94a6b54f | 114 | |
85d59fef | 115 | RAMList ram_list = { .blocks = QLIST_HEAD_INITIALIZER(ram_list.blocks) }; |
62152b8a AK |
116 | |
117 | static MemoryRegion *system_memory; | |
309cb471 | 118 | static MemoryRegion *system_io; |
62152b8a | 119 | |
0e0df1e2 | 120 | MemoryRegion io_mem_ram, io_mem_rom, io_mem_unassigned, io_mem_notdirty; |
de712f94 | 121 | static MemoryRegion io_mem_subpage_ram; |
0e0df1e2 | 122 | |
e2eef170 | 123 | #endif |
9fa3e853 | 124 | |
9349b4f9 | 125 | CPUArchState *first_cpu; |
6a00d601 FB |
126 | /* current CPU in the current thread. It is only valid inside |
127 | cpu_exec() */ | |
9349b4f9 | 128 | DEFINE_TLS(CPUArchState *,cpu_single_env); |
2e70f6ef | 129 | /* 0 = Do not count executed instructions. |
bf20dc07 | 130 | 1 = Precise instruction counting. |
2e70f6ef PB |
131 | 2 = Adaptive rate instruction counting. */ |
132 | int use_icount = 0; | |
6a00d601 | 133 | |
54936004 | 134 | typedef struct PageDesc { |
92e873b9 | 135 | /* list of TBs intersecting this ram page */ |
fd6ce8f6 | 136 | TranslationBlock *first_tb; |
9fa3e853 FB |
137 | /* in order to optimize self modifying code, we count the number |
138 | of lookups we do to a given page to use a bitmap */ | |
139 | unsigned int code_write_count; | |
140 | uint8_t *code_bitmap; | |
141 | #if defined(CONFIG_USER_ONLY) | |
142 | unsigned long flags; | |
143 | #endif | |
54936004 FB |
144 | } PageDesc; |
145 | ||
41c1b1c9 | 146 | /* In system mode we want L1_MAP to be based on ram offsets, |
5cd2c5b6 RH |
147 | while in user mode we want it to be based on virtual addresses. */ |
148 | #if !defined(CONFIG_USER_ONLY) | |
41c1b1c9 PB |
149 | #if HOST_LONG_BITS < TARGET_PHYS_ADDR_SPACE_BITS |
150 | # define L1_MAP_ADDR_SPACE_BITS HOST_LONG_BITS | |
151 | #else | |
5cd2c5b6 | 152 | # define L1_MAP_ADDR_SPACE_BITS TARGET_PHYS_ADDR_SPACE_BITS |
41c1b1c9 | 153 | #endif |
bedb69ea | 154 | #else |
5cd2c5b6 | 155 | # define L1_MAP_ADDR_SPACE_BITS TARGET_VIRT_ADDR_SPACE_BITS |
bedb69ea | 156 | #endif |
54936004 | 157 | |
5cd2c5b6 RH |
158 | /* Size of the L2 (and L3, etc) page tables. */ |
159 | #define L2_BITS 10 | |
54936004 FB |
160 | #define L2_SIZE (1 << L2_BITS) |
161 | ||
3eef53df AK |
162 | #define P_L2_LEVELS \ |
163 | (((TARGET_PHYS_ADDR_SPACE_BITS - TARGET_PAGE_BITS - 1) / L2_BITS) + 1) | |
164 | ||
5cd2c5b6 | 165 | /* The bits remaining after N lower levels of page tables. */ |
5cd2c5b6 RH |
166 | #define V_L1_BITS_REM \ |
167 | ((L1_MAP_ADDR_SPACE_BITS - TARGET_PAGE_BITS) % L2_BITS) | |
168 | ||
5cd2c5b6 RH |
169 | #if V_L1_BITS_REM < 4 |
170 | #define V_L1_BITS (V_L1_BITS_REM + L2_BITS) | |
171 | #else | |
172 | #define V_L1_BITS V_L1_BITS_REM | |
173 | #endif | |
174 | ||
5cd2c5b6 RH |
175 | #define V_L1_SIZE ((target_ulong)1 << V_L1_BITS) |
176 | ||
5cd2c5b6 RH |
177 | #define V_L1_SHIFT (L1_MAP_ADDR_SPACE_BITS - TARGET_PAGE_BITS - V_L1_BITS) |
178 | ||
c6d50674 SW |
179 | uintptr_t qemu_real_host_page_size; |
180 | uintptr_t qemu_host_page_size; | |
181 | uintptr_t qemu_host_page_mask; | |
54936004 | 182 | |
5cd2c5b6 RH |
183 | /* This is a multi-level map on the virtual address space. |
184 | The bottom level has pointers to PageDesc. */ | |
185 | static void *l1_map[V_L1_SIZE]; | |
54936004 | 186 | |
e2eef170 | 187 | #if !defined(CONFIG_USER_ONLY) |
4346ae3e AK |
188 | typedef struct PhysPageEntry PhysPageEntry; |
189 | ||
5312bd8b AK |
190 | static MemoryRegionSection *phys_sections; |
191 | static unsigned phys_sections_nb, phys_sections_nb_alloc; | |
192 | static uint16_t phys_section_unassigned; | |
aa102231 AK |
193 | static uint16_t phys_section_notdirty; |
194 | static uint16_t phys_section_rom; | |
195 | static uint16_t phys_section_watch; | |
5312bd8b | 196 | |
4346ae3e | 197 | struct PhysPageEntry { |
07f07b31 AK |
198 | uint16_t is_leaf : 1; |
199 | /* index into phys_sections (is_leaf) or phys_map_nodes (!is_leaf) */ | |
200 | uint16_t ptr : 15; | |
4346ae3e AK |
201 | }; |
202 | ||
d6f2ea22 AK |
203 | /* Simple allocator for PhysPageEntry nodes */ |
204 | static PhysPageEntry (*phys_map_nodes)[L2_SIZE]; | |
205 | static unsigned phys_map_nodes_nb, phys_map_nodes_nb_alloc; | |
206 | ||
07f07b31 | 207 | #define PHYS_MAP_NODE_NIL (((uint16_t)~0) >> 1) |
d6f2ea22 | 208 | |
5cd2c5b6 | 209 | /* This is a multi-level map on the physical address space. |
06ef3525 | 210 | The bottom level has pointers to MemoryRegionSections. */ |
07f07b31 | 211 | static PhysPageEntry phys_map = { .ptr = PHYS_MAP_NODE_NIL, .is_leaf = 0 }; |
6d9a1304 | 212 | |
e2eef170 | 213 | static void io_mem_init(void); |
62152b8a | 214 | static void memory_map_init(void); |
e2eef170 | 215 | |
1ec9b909 | 216 | static MemoryRegion io_mem_watch; |
6658ffb8 | 217 | #endif |
33417e70 | 218 | |
e3db7226 | 219 | /* statistics */ |
e3db7226 FB |
220 | static int tb_flush_count; |
221 | static int tb_phys_invalidate_count; | |
222 | ||
7cb69cae FB |
223 | #ifdef _WIN32 |
224 | static void map_exec(void *addr, long size) | |
225 | { | |
226 | DWORD old_protect; | |
227 | VirtualProtect(addr, size, | |
228 | PAGE_EXECUTE_READWRITE, &old_protect); | |
229 | ||
230 | } | |
231 | #else | |
232 | static void map_exec(void *addr, long size) | |
233 | { | |
4369415f | 234 | unsigned long start, end, page_size; |
7cb69cae | 235 | |
4369415f | 236 | page_size = getpagesize(); |
7cb69cae | 237 | start = (unsigned long)addr; |
4369415f | 238 | start &= ~(page_size - 1); |
7cb69cae FB |
239 | |
240 | end = (unsigned long)addr + size; | |
4369415f FB |
241 | end += page_size - 1; |
242 | end &= ~(page_size - 1); | |
7cb69cae FB |
243 | |
244 | mprotect((void *)start, end - start, | |
245 | PROT_READ | PROT_WRITE | PROT_EXEC); | |
246 | } | |
247 | #endif | |
248 | ||
b346ff46 | 249 | static void page_init(void) |
54936004 | 250 | { |
83fb7adf | 251 | /* NOTE: we can always suppose that qemu_host_page_size >= |
54936004 | 252 | TARGET_PAGE_SIZE */ |
c2b48b69 AL |
253 | #ifdef _WIN32 |
254 | { | |
255 | SYSTEM_INFO system_info; | |
256 | ||
257 | GetSystemInfo(&system_info); | |
258 | qemu_real_host_page_size = system_info.dwPageSize; | |
259 | } | |
260 | #else | |
261 | qemu_real_host_page_size = getpagesize(); | |
262 | #endif | |
83fb7adf FB |
263 | if (qemu_host_page_size == 0) |
264 | qemu_host_page_size = qemu_real_host_page_size; | |
265 | if (qemu_host_page_size < TARGET_PAGE_SIZE) | |
266 | qemu_host_page_size = TARGET_PAGE_SIZE; | |
83fb7adf | 267 | qemu_host_page_mask = ~(qemu_host_page_size - 1); |
50a9569b | 268 | |
2e9a5713 | 269 | #if defined(CONFIG_BSD) && defined(CONFIG_USER_ONLY) |
50a9569b | 270 | { |
f01576f1 JL |
271 | #ifdef HAVE_KINFO_GETVMMAP |
272 | struct kinfo_vmentry *freep; | |
273 | int i, cnt; | |
274 | ||
275 | freep = kinfo_getvmmap(getpid(), &cnt); | |
276 | if (freep) { | |
277 | mmap_lock(); | |
278 | for (i = 0; i < cnt; i++) { | |
279 | unsigned long startaddr, endaddr; | |
280 | ||
281 | startaddr = freep[i].kve_start; | |
282 | endaddr = freep[i].kve_end; | |
283 | if (h2g_valid(startaddr)) { | |
284 | startaddr = h2g(startaddr) & TARGET_PAGE_MASK; | |
285 | ||
286 | if (h2g_valid(endaddr)) { | |
287 | endaddr = h2g(endaddr); | |
fd436907 | 288 | page_set_flags(startaddr, endaddr, PAGE_RESERVED); |
f01576f1 JL |
289 | } else { |
290 | #if TARGET_ABI_BITS <= L1_MAP_ADDR_SPACE_BITS | |
291 | endaddr = ~0ul; | |
fd436907 | 292 | page_set_flags(startaddr, endaddr, PAGE_RESERVED); |
f01576f1 JL |
293 | #endif |
294 | } | |
295 | } | |
296 | } | |
297 | free(freep); | |
298 | mmap_unlock(); | |
299 | } | |
300 | #else | |
50a9569b | 301 | FILE *f; |
50a9569b | 302 | |
0776590d | 303 | last_brk = (unsigned long)sbrk(0); |
5cd2c5b6 | 304 | |
fd436907 | 305 | f = fopen("/compat/linux/proc/self/maps", "r"); |
50a9569b | 306 | if (f) { |
5cd2c5b6 RH |
307 | mmap_lock(); |
308 | ||
50a9569b | 309 | do { |
5cd2c5b6 RH |
310 | unsigned long startaddr, endaddr; |
311 | int n; | |
312 | ||
313 | n = fscanf (f, "%lx-%lx %*[^\n]\n", &startaddr, &endaddr); | |
314 | ||
315 | if (n == 2 && h2g_valid(startaddr)) { | |
316 | startaddr = h2g(startaddr) & TARGET_PAGE_MASK; | |
317 | ||
318 | if (h2g_valid(endaddr)) { | |
319 | endaddr = h2g(endaddr); | |
320 | } else { | |
321 | endaddr = ~0ul; | |
322 | } | |
323 | page_set_flags(startaddr, endaddr, PAGE_RESERVED); | |
50a9569b AZ |
324 | } |
325 | } while (!feof(f)); | |
5cd2c5b6 | 326 | |
50a9569b | 327 | fclose(f); |
5cd2c5b6 | 328 | mmap_unlock(); |
50a9569b | 329 | } |
f01576f1 | 330 | #endif |
50a9569b AZ |
331 | } |
332 | #endif | |
54936004 FB |
333 | } |
334 | ||
41c1b1c9 | 335 | static PageDesc *page_find_alloc(tb_page_addr_t index, int alloc) |
54936004 | 336 | { |
41c1b1c9 PB |
337 | PageDesc *pd; |
338 | void **lp; | |
339 | int i; | |
340 | ||
5cd2c5b6 | 341 | #if defined(CONFIG_USER_ONLY) |
7267c094 | 342 | /* We can't use g_malloc because it may recurse into a locked mutex. */ |
5cd2c5b6 RH |
343 | # define ALLOC(P, SIZE) \ |
344 | do { \ | |
345 | P = mmap(NULL, SIZE, PROT_READ | PROT_WRITE, \ | |
346 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); \ | |
5cd2c5b6 RH |
347 | } while (0) |
348 | #else | |
349 | # define ALLOC(P, SIZE) \ | |
7267c094 | 350 | do { P = g_malloc0(SIZE); } while (0) |
17e2377a | 351 | #endif |
434929bf | 352 | |
5cd2c5b6 RH |
353 | /* Level 1. Always allocated. */ |
354 | lp = l1_map + ((index >> V_L1_SHIFT) & (V_L1_SIZE - 1)); | |
355 | ||
356 | /* Level 2..N-1. */ | |
357 | for (i = V_L1_SHIFT / L2_BITS - 1; i > 0; i--) { | |
358 | void **p = *lp; | |
359 | ||
360 | if (p == NULL) { | |
361 | if (!alloc) { | |
362 | return NULL; | |
363 | } | |
364 | ALLOC(p, sizeof(void *) * L2_SIZE); | |
365 | *lp = p; | |
17e2377a | 366 | } |
5cd2c5b6 RH |
367 | |
368 | lp = p + ((index >> (i * L2_BITS)) & (L2_SIZE - 1)); | |
369 | } | |
370 | ||
371 | pd = *lp; | |
372 | if (pd == NULL) { | |
373 | if (!alloc) { | |
374 | return NULL; | |
375 | } | |
376 | ALLOC(pd, sizeof(PageDesc) * L2_SIZE); | |
377 | *lp = pd; | |
54936004 | 378 | } |
5cd2c5b6 RH |
379 | |
380 | #undef ALLOC | |
5cd2c5b6 RH |
381 | |
382 | return pd + (index & (L2_SIZE - 1)); | |
54936004 FB |
383 | } |
384 | ||
41c1b1c9 | 385 | static inline PageDesc *page_find(tb_page_addr_t index) |
54936004 | 386 | { |
5cd2c5b6 | 387 | return page_find_alloc(index, 0); |
fd6ce8f6 FB |
388 | } |
389 | ||
6d9a1304 | 390 | #if !defined(CONFIG_USER_ONLY) |
d6f2ea22 | 391 | |
f7bf5461 | 392 | static void phys_map_node_reserve(unsigned nodes) |
d6f2ea22 | 393 | { |
f7bf5461 | 394 | if (phys_map_nodes_nb + nodes > phys_map_nodes_nb_alloc) { |
d6f2ea22 AK |
395 | typedef PhysPageEntry Node[L2_SIZE]; |
396 | phys_map_nodes_nb_alloc = MAX(phys_map_nodes_nb_alloc * 2, 16); | |
f7bf5461 AK |
397 | phys_map_nodes_nb_alloc = MAX(phys_map_nodes_nb_alloc, |
398 | phys_map_nodes_nb + nodes); | |
d6f2ea22 AK |
399 | phys_map_nodes = g_renew(Node, phys_map_nodes, |
400 | phys_map_nodes_nb_alloc); | |
401 | } | |
f7bf5461 AK |
402 | } |
403 | ||
404 | static uint16_t phys_map_node_alloc(void) | |
405 | { | |
406 | unsigned i; | |
407 | uint16_t ret; | |
408 | ||
409 | ret = phys_map_nodes_nb++; | |
410 | assert(ret != PHYS_MAP_NODE_NIL); | |
411 | assert(ret != phys_map_nodes_nb_alloc); | |
d6f2ea22 | 412 | for (i = 0; i < L2_SIZE; ++i) { |
07f07b31 | 413 | phys_map_nodes[ret][i].is_leaf = 0; |
c19e8800 | 414 | phys_map_nodes[ret][i].ptr = PHYS_MAP_NODE_NIL; |
d6f2ea22 | 415 | } |
f7bf5461 | 416 | return ret; |
d6f2ea22 AK |
417 | } |
418 | ||
419 | static void phys_map_nodes_reset(void) | |
420 | { | |
421 | phys_map_nodes_nb = 0; | |
422 | } | |
423 | ||
92e873b9 | 424 | |
2999097b AK |
425 | static void phys_page_set_level(PhysPageEntry *lp, target_phys_addr_t *index, |
426 | target_phys_addr_t *nb, uint16_t leaf, | |
427 | int level) | |
f7bf5461 AK |
428 | { |
429 | PhysPageEntry *p; | |
430 | int i; | |
07f07b31 | 431 | target_phys_addr_t step = (target_phys_addr_t)1 << (level * L2_BITS); |
108c49b8 | 432 | |
07f07b31 | 433 | if (!lp->is_leaf && lp->ptr == PHYS_MAP_NODE_NIL) { |
c19e8800 AK |
434 | lp->ptr = phys_map_node_alloc(); |
435 | p = phys_map_nodes[lp->ptr]; | |
f7bf5461 AK |
436 | if (level == 0) { |
437 | for (i = 0; i < L2_SIZE; i++) { | |
07f07b31 | 438 | p[i].is_leaf = 1; |
c19e8800 | 439 | p[i].ptr = phys_section_unassigned; |
4346ae3e | 440 | } |
67c4d23c | 441 | } |
f7bf5461 | 442 | } else { |
c19e8800 | 443 | p = phys_map_nodes[lp->ptr]; |
92e873b9 | 444 | } |
2999097b | 445 | lp = &p[(*index >> (level * L2_BITS)) & (L2_SIZE - 1)]; |
f7bf5461 | 446 | |
2999097b | 447 | while (*nb && lp < &p[L2_SIZE]) { |
07f07b31 AK |
448 | if ((*index & (step - 1)) == 0 && *nb >= step) { |
449 | lp->is_leaf = true; | |
c19e8800 | 450 | lp->ptr = leaf; |
07f07b31 AK |
451 | *index += step; |
452 | *nb -= step; | |
2999097b AK |
453 | } else { |
454 | phys_page_set_level(lp, index, nb, leaf, level - 1); | |
455 | } | |
456 | ++lp; | |
f7bf5461 AK |
457 | } |
458 | } | |
459 | ||
2999097b AK |
460 | static void phys_page_set(target_phys_addr_t index, target_phys_addr_t nb, |
461 | uint16_t leaf) | |
f7bf5461 | 462 | { |
2999097b | 463 | /* Wildly overreserve - it doesn't matter much. */ |
07f07b31 | 464 | phys_map_node_reserve(3 * P_L2_LEVELS); |
5cd2c5b6 | 465 | |
2999097b | 466 | phys_page_set_level(&phys_map, &index, &nb, leaf, P_L2_LEVELS - 1); |
92e873b9 FB |
467 | } |
468 | ||
0cac1b66 | 469 | MemoryRegionSection *phys_page_find(target_phys_addr_t index) |
92e873b9 | 470 | { |
31ab2b4a AK |
471 | PhysPageEntry lp = phys_map; |
472 | PhysPageEntry *p; | |
473 | int i; | |
31ab2b4a | 474 | uint16_t s_index = phys_section_unassigned; |
f1f6e3b8 | 475 | |
07f07b31 | 476 | for (i = P_L2_LEVELS - 1; i >= 0 && !lp.is_leaf; i--) { |
c19e8800 | 477 | if (lp.ptr == PHYS_MAP_NODE_NIL) { |
31ab2b4a AK |
478 | goto not_found; |
479 | } | |
c19e8800 | 480 | p = phys_map_nodes[lp.ptr]; |
31ab2b4a | 481 | lp = p[(index >> (i * L2_BITS)) & (L2_SIZE - 1)]; |
5312bd8b | 482 | } |
31ab2b4a | 483 | |
c19e8800 | 484 | s_index = lp.ptr; |
31ab2b4a | 485 | not_found: |
f3705d53 AK |
486 | return &phys_sections[s_index]; |
487 | } | |
488 | ||
e5548617 BS |
489 | bool memory_region_is_unassigned(MemoryRegion *mr) |
490 | { | |
491 | return mr != &io_mem_ram && mr != &io_mem_rom | |
492 | && mr != &io_mem_notdirty && !mr->rom_device | |
493 | && mr != &io_mem_watch; | |
494 | } | |
495 | ||
c8a706fe PB |
496 | #define mmap_lock() do { } while(0) |
497 | #define mmap_unlock() do { } while(0) | |
9fa3e853 | 498 | #endif |
fd6ce8f6 | 499 | |
4369415f FB |
500 | #define DEFAULT_CODE_GEN_BUFFER_SIZE (32 * 1024 * 1024) |
501 | ||
502 | #if defined(CONFIG_USER_ONLY) | |
ccbb4d44 | 503 | /* Currently it is not recommended to allocate big chunks of data in |
4369415f FB |
504 | user mode. It will change when a dedicated libc will be used */ |
505 | #define USE_STATIC_CODE_GEN_BUFFER | |
506 | #endif | |
507 | ||
508 | #ifdef USE_STATIC_CODE_GEN_BUFFER | |
ebf50fb3 AJ |
509 | static uint8_t static_code_gen_buffer[DEFAULT_CODE_GEN_BUFFER_SIZE] |
510 | __attribute__((aligned (CODE_GEN_ALIGN))); | |
4369415f FB |
511 | #endif |
512 | ||
8fcd3692 | 513 | static void code_gen_alloc(unsigned long tb_size) |
26a5f13b | 514 | { |
4369415f FB |
515 | #ifdef USE_STATIC_CODE_GEN_BUFFER |
516 | code_gen_buffer = static_code_gen_buffer; | |
517 | code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE; | |
518 | map_exec(code_gen_buffer, code_gen_buffer_size); | |
519 | #else | |
26a5f13b FB |
520 | code_gen_buffer_size = tb_size; |
521 | if (code_gen_buffer_size == 0) { | |
4369415f | 522 | #if defined(CONFIG_USER_ONLY) |
4369415f FB |
523 | code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE; |
524 | #else | |
ccbb4d44 | 525 | /* XXX: needs adjustments */ |
94a6b54f | 526 | code_gen_buffer_size = (unsigned long)(ram_size / 4); |
4369415f | 527 | #endif |
26a5f13b FB |
528 | } |
529 | if (code_gen_buffer_size < MIN_CODE_GEN_BUFFER_SIZE) | |
530 | code_gen_buffer_size = MIN_CODE_GEN_BUFFER_SIZE; | |
531 | /* The code gen buffer location may have constraints depending on | |
532 | the host cpu and OS */ | |
533 | #if defined(__linux__) | |
534 | { | |
535 | int flags; | |
141ac468 BS |
536 | void *start = NULL; |
537 | ||
26a5f13b FB |
538 | flags = MAP_PRIVATE | MAP_ANONYMOUS; |
539 | #if defined(__x86_64__) | |
540 | flags |= MAP_32BIT; | |
541 | /* Cannot map more than that */ | |
542 | if (code_gen_buffer_size > (800 * 1024 * 1024)) | |
543 | code_gen_buffer_size = (800 * 1024 * 1024); | |
181dd0b2 | 544 | #elif defined(__sparc__) && HOST_LONG_BITS == 64 |
141ac468 | 545 | // Map the buffer below 2G, so we can use direct calls and branches |
e1784a4c | 546 | start = (void *) 0x40000000UL; |
141ac468 BS |
547 | if (code_gen_buffer_size > (512 * 1024 * 1024)) |
548 | code_gen_buffer_size = (512 * 1024 * 1024); | |
1cb0661e | 549 | #elif defined(__arm__) |
5c84bd90 | 550 | /* Keep the buffer no bigger than 16MB to branch between blocks */ |
1cb0661e AZ |
551 | if (code_gen_buffer_size > 16 * 1024 * 1024) |
552 | code_gen_buffer_size = 16 * 1024 * 1024; | |
eba0b893 RH |
553 | #elif defined(__s390x__) |
554 | /* Map the buffer so that we can use direct calls and branches. */ | |
555 | /* We have a +- 4GB range on the branches; leave some slop. */ | |
556 | if (code_gen_buffer_size > (3ul * 1024 * 1024 * 1024)) { | |
557 | code_gen_buffer_size = 3ul * 1024 * 1024 * 1024; | |
558 | } | |
559 | start = (void *)0x90000000UL; | |
26a5f13b | 560 | #endif |
141ac468 BS |
561 | code_gen_buffer = mmap(start, code_gen_buffer_size, |
562 | PROT_WRITE | PROT_READ | PROT_EXEC, | |
26a5f13b FB |
563 | flags, -1, 0); |
564 | if (code_gen_buffer == MAP_FAILED) { | |
565 | fprintf(stderr, "Could not allocate dynamic translator buffer\n"); | |
566 | exit(1); | |
567 | } | |
568 | } | |
cbb608a5 | 569 | #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) \ |
9f4b09a4 TN |
570 | || defined(__DragonFly__) || defined(__OpenBSD__) \ |
571 | || defined(__NetBSD__) | |
06e67a82 AL |
572 | { |
573 | int flags; | |
574 | void *addr = NULL; | |
575 | flags = MAP_PRIVATE | MAP_ANONYMOUS; | |
576 | #if defined(__x86_64__) | |
577 | /* FreeBSD doesn't have MAP_32BIT, use MAP_FIXED and assume | |
578 | * 0x40000000 is free */ | |
579 | flags |= MAP_FIXED; | |
580 | addr = (void *)0x40000000; | |
581 | /* Cannot map more than that */ | |
582 | if (code_gen_buffer_size > (800 * 1024 * 1024)) | |
583 | code_gen_buffer_size = (800 * 1024 * 1024); | |
181dd0b2 | 584 | #elif defined(__sparc__) && HOST_LONG_BITS == 64 |
4cd31ad2 | 585 | // Map the buffer below 2G, so we can use direct calls and branches |
e1784a4c | 586 | addr = (void *) 0x40000000UL; |
4cd31ad2 BS |
587 | if (code_gen_buffer_size > (512 * 1024 * 1024)) { |
588 | code_gen_buffer_size = (512 * 1024 * 1024); | |
589 | } | |
06e67a82 AL |
590 | #endif |
591 | code_gen_buffer = mmap(addr, code_gen_buffer_size, | |
592 | PROT_WRITE | PROT_READ | PROT_EXEC, | |
593 | flags, -1, 0); | |
594 | if (code_gen_buffer == MAP_FAILED) { | |
595 | fprintf(stderr, "Could not allocate dynamic translator buffer\n"); | |
596 | exit(1); | |
597 | } | |
598 | } | |
26a5f13b | 599 | #else |
7267c094 | 600 | code_gen_buffer = g_malloc(code_gen_buffer_size); |
26a5f13b FB |
601 | map_exec(code_gen_buffer, code_gen_buffer_size); |
602 | #endif | |
4369415f | 603 | #endif /* !USE_STATIC_CODE_GEN_BUFFER */ |
26a5f13b | 604 | map_exec(code_gen_prologue, sizeof(code_gen_prologue)); |
a884da8a PM |
605 | code_gen_buffer_max_size = code_gen_buffer_size - |
606 | (TCG_MAX_OP_SIZE * OPC_BUF_SIZE); | |
26a5f13b | 607 | code_gen_max_blocks = code_gen_buffer_size / CODE_GEN_AVG_BLOCK_SIZE; |
7267c094 | 608 | tbs = g_malloc(code_gen_max_blocks * sizeof(TranslationBlock)); |
26a5f13b FB |
609 | } |
610 | ||
611 | /* Must be called before using the QEMU cpus. 'tb_size' is the size | |
612 | (in bytes) allocated to the translation buffer. Zero means default | |
613 | size. */ | |
d5ab9713 | 614 | void tcg_exec_init(unsigned long tb_size) |
26a5f13b | 615 | { |
26a5f13b FB |
616 | cpu_gen_init(); |
617 | code_gen_alloc(tb_size); | |
618 | code_gen_ptr = code_gen_buffer; | |
813da627 | 619 | tcg_register_jit(code_gen_buffer, code_gen_buffer_size); |
4369415f | 620 | page_init(); |
9002ec79 RH |
621 | #if !defined(CONFIG_USER_ONLY) || !defined(CONFIG_USE_GUEST_BASE) |
622 | /* There's no guest base to take into account, so go ahead and | |
623 | initialize the prologue now. */ | |
624 | tcg_prologue_init(&tcg_ctx); | |
625 | #endif | |
26a5f13b FB |
626 | } |
627 | ||
d5ab9713 JK |
628 | bool tcg_enabled(void) |
629 | { | |
630 | return code_gen_buffer != NULL; | |
631 | } | |
632 | ||
633 | void cpu_exec_init_all(void) | |
634 | { | |
635 | #if !defined(CONFIG_USER_ONLY) | |
636 | memory_map_init(); | |
637 | io_mem_init(); | |
638 | #endif | |
639 | } | |
640 | ||
9656f324 PB |
641 | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY) |
642 | ||
e59fb374 | 643 | static int cpu_common_post_load(void *opaque, int version_id) |
e7f4eff7 | 644 | { |
9349b4f9 | 645 | CPUArchState *env = opaque; |
9656f324 | 646 | |
3098dba0 AJ |
647 | /* 0x01 was CPU_INTERRUPT_EXIT. This line can be removed when the |
648 | version_id is increased. */ | |
649 | env->interrupt_request &= ~0x01; | |
9656f324 PB |
650 | tlb_flush(env, 1); |
651 | ||
652 | return 0; | |
653 | } | |
e7f4eff7 JQ |
654 | |
655 | static const VMStateDescription vmstate_cpu_common = { | |
656 | .name = "cpu_common", | |
657 | .version_id = 1, | |
658 | .minimum_version_id = 1, | |
659 | .minimum_version_id_old = 1, | |
e7f4eff7 JQ |
660 | .post_load = cpu_common_post_load, |
661 | .fields = (VMStateField []) { | |
9349b4f9 AF |
662 | VMSTATE_UINT32(halted, CPUArchState), |
663 | VMSTATE_UINT32(interrupt_request, CPUArchState), | |
e7f4eff7 JQ |
664 | VMSTATE_END_OF_LIST() |
665 | } | |
666 | }; | |
9656f324 PB |
667 | #endif |
668 | ||
9349b4f9 | 669 | CPUArchState *qemu_get_cpu(int cpu) |
950f1472 | 670 | { |
9349b4f9 | 671 | CPUArchState *env = first_cpu; |
950f1472 GC |
672 | |
673 | while (env) { | |
674 | if (env->cpu_index == cpu) | |
675 | break; | |
676 | env = env->next_cpu; | |
677 | } | |
678 | ||
679 | return env; | |
680 | } | |
681 | ||
9349b4f9 | 682 | void cpu_exec_init(CPUArchState *env) |
fd6ce8f6 | 683 | { |
9349b4f9 | 684 | CPUArchState **penv; |
6a00d601 FB |
685 | int cpu_index; |
686 | ||
c2764719 PB |
687 | #if defined(CONFIG_USER_ONLY) |
688 | cpu_list_lock(); | |
689 | #endif | |
6a00d601 FB |
690 | env->next_cpu = NULL; |
691 | penv = &first_cpu; | |
692 | cpu_index = 0; | |
693 | while (*penv != NULL) { | |
1e9fa730 | 694 | penv = &(*penv)->next_cpu; |
6a00d601 FB |
695 | cpu_index++; |
696 | } | |
697 | env->cpu_index = cpu_index; | |
268a362c | 698 | env->numa_node = 0; |
72cf2d4f BS |
699 | QTAILQ_INIT(&env->breakpoints); |
700 | QTAILQ_INIT(&env->watchpoints); | |
dc7a09cf JK |
701 | #ifndef CONFIG_USER_ONLY |
702 | env->thread_id = qemu_get_thread_id(); | |
703 | #endif | |
6a00d601 | 704 | *penv = env; |
c2764719 PB |
705 | #if defined(CONFIG_USER_ONLY) |
706 | cpu_list_unlock(); | |
707 | #endif | |
b3c7724c | 708 | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY) |
0be71e32 AW |
709 | vmstate_register(NULL, cpu_index, &vmstate_cpu_common, env); |
710 | register_savevm(NULL, "cpu", cpu_index, CPU_SAVE_VERSION, | |
b3c7724c PB |
711 | cpu_save, cpu_load, env); |
712 | #endif | |
fd6ce8f6 FB |
713 | } |
714 | ||
d1a1eb74 TG |
715 | /* Allocate a new translation block. Flush the translation buffer if |
716 | too many translation blocks or too much generated code. */ | |
717 | static TranslationBlock *tb_alloc(target_ulong pc) | |
718 | { | |
719 | TranslationBlock *tb; | |
720 | ||
721 | if (nb_tbs >= code_gen_max_blocks || | |
722 | (code_gen_ptr - code_gen_buffer) >= code_gen_buffer_max_size) | |
723 | return NULL; | |
724 | tb = &tbs[nb_tbs++]; | |
725 | tb->pc = pc; | |
726 | tb->cflags = 0; | |
727 | return tb; | |
728 | } | |
729 | ||
730 | void tb_free(TranslationBlock *tb) | |
731 | { | |
732 | /* In practice this is mostly used for single use temporary TB | |
733 | Ignore the hard cases and just back up if this TB happens to | |
734 | be the last one generated. */ | |
735 | if (nb_tbs > 0 && tb == &tbs[nb_tbs - 1]) { | |
736 | code_gen_ptr = tb->tc_ptr; | |
737 | nb_tbs--; | |
738 | } | |
739 | } | |
740 | ||
9fa3e853 FB |
741 | static inline void invalidate_page_bitmap(PageDesc *p) |
742 | { | |
743 | if (p->code_bitmap) { | |
7267c094 | 744 | g_free(p->code_bitmap); |
9fa3e853 FB |
745 | p->code_bitmap = NULL; |
746 | } | |
747 | p->code_write_count = 0; | |
748 | } | |
749 | ||
5cd2c5b6 RH |
750 | /* Set to NULL all the 'first_tb' fields in all PageDescs. */ |
751 | ||
752 | static void page_flush_tb_1 (int level, void **lp) | |
fd6ce8f6 | 753 | { |
5cd2c5b6 | 754 | int i; |
fd6ce8f6 | 755 | |
5cd2c5b6 RH |
756 | if (*lp == NULL) { |
757 | return; | |
758 | } | |
759 | if (level == 0) { | |
760 | PageDesc *pd = *lp; | |
7296abac | 761 | for (i = 0; i < L2_SIZE; ++i) { |
5cd2c5b6 RH |
762 | pd[i].first_tb = NULL; |
763 | invalidate_page_bitmap(pd + i); | |
fd6ce8f6 | 764 | } |
5cd2c5b6 RH |
765 | } else { |
766 | void **pp = *lp; | |
7296abac | 767 | for (i = 0; i < L2_SIZE; ++i) { |
5cd2c5b6 RH |
768 | page_flush_tb_1 (level - 1, pp + i); |
769 | } | |
770 | } | |
771 | } | |
772 | ||
773 | static void page_flush_tb(void) | |
774 | { | |
775 | int i; | |
776 | for (i = 0; i < V_L1_SIZE; i++) { | |
777 | page_flush_tb_1(V_L1_SHIFT / L2_BITS - 1, l1_map + i); | |
fd6ce8f6 FB |
778 | } |
779 | } | |
780 | ||
781 | /* flush all the translation blocks */ | |
d4e8164f | 782 | /* XXX: tb_flush is currently not thread safe */ |
9349b4f9 | 783 | void tb_flush(CPUArchState *env1) |
fd6ce8f6 | 784 | { |
9349b4f9 | 785 | CPUArchState *env; |
0124311e | 786 | #if defined(DEBUG_FLUSH) |
ab3d1727 BS |
787 | printf("qemu: flush code_size=%ld nb_tbs=%d avg_tb_size=%ld\n", |
788 | (unsigned long)(code_gen_ptr - code_gen_buffer), | |
789 | nb_tbs, nb_tbs > 0 ? | |
790 | ((unsigned long)(code_gen_ptr - code_gen_buffer)) / nb_tbs : 0); | |
fd6ce8f6 | 791 | #endif |
26a5f13b | 792 | if ((unsigned long)(code_gen_ptr - code_gen_buffer) > code_gen_buffer_size) |
a208e54a PB |
793 | cpu_abort(env1, "Internal error: code buffer overflow\n"); |
794 | ||
fd6ce8f6 | 795 | nb_tbs = 0; |
3b46e624 | 796 | |
6a00d601 FB |
797 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
798 | memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *)); | |
799 | } | |
9fa3e853 | 800 | |
8a8a608f | 801 | memset (tb_phys_hash, 0, CODE_GEN_PHYS_HASH_SIZE * sizeof (void *)); |
fd6ce8f6 | 802 | page_flush_tb(); |
9fa3e853 | 803 | |
fd6ce8f6 | 804 | code_gen_ptr = code_gen_buffer; |
d4e8164f FB |
805 | /* XXX: flush processor icache at this point if cache flush is |
806 | expensive */ | |
e3db7226 | 807 | tb_flush_count++; |
fd6ce8f6 FB |
808 | } |
809 | ||
810 | #ifdef DEBUG_TB_CHECK | |
811 | ||
bc98a7ef | 812 | static void tb_invalidate_check(target_ulong address) |
fd6ce8f6 FB |
813 | { |
814 | TranslationBlock *tb; | |
815 | int i; | |
816 | address &= TARGET_PAGE_MASK; | |
99773bd4 PB |
817 | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
818 | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { | |
fd6ce8f6 FB |
819 | if (!(address + TARGET_PAGE_SIZE <= tb->pc || |
820 | address >= tb->pc + tb->size)) { | |
0bf9e31a BS |
821 | printf("ERROR invalidate: address=" TARGET_FMT_lx |
822 | " PC=%08lx size=%04x\n", | |
99773bd4 | 823 | address, (long)tb->pc, tb->size); |
fd6ce8f6 FB |
824 | } |
825 | } | |
826 | } | |
827 | } | |
828 | ||
829 | /* verify that all the pages have correct rights for code */ | |
830 | static void tb_page_check(void) | |
831 | { | |
832 | TranslationBlock *tb; | |
833 | int i, flags1, flags2; | |
3b46e624 | 834 | |
99773bd4 PB |
835 | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
836 | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { | |
fd6ce8f6 FB |
837 | flags1 = page_get_flags(tb->pc); |
838 | flags2 = page_get_flags(tb->pc + tb->size - 1); | |
839 | if ((flags1 & PAGE_WRITE) || (flags2 & PAGE_WRITE)) { | |
840 | printf("ERROR page flags: PC=%08lx size=%04x f1=%x f2=%x\n", | |
99773bd4 | 841 | (long)tb->pc, tb->size, flags1, flags2); |
fd6ce8f6 FB |
842 | } |
843 | } | |
844 | } | |
845 | } | |
846 | ||
847 | #endif | |
848 | ||
849 | /* invalidate one TB */ | |
850 | static inline void tb_remove(TranslationBlock **ptb, TranslationBlock *tb, | |
851 | int next_offset) | |
852 | { | |
853 | TranslationBlock *tb1; | |
854 | for(;;) { | |
855 | tb1 = *ptb; | |
856 | if (tb1 == tb) { | |
857 | *ptb = *(TranslationBlock **)((char *)tb1 + next_offset); | |
858 | break; | |
859 | } | |
860 | ptb = (TranslationBlock **)((char *)tb1 + next_offset); | |
861 | } | |
862 | } | |
863 | ||
9fa3e853 FB |
864 | static inline void tb_page_remove(TranslationBlock **ptb, TranslationBlock *tb) |
865 | { | |
866 | TranslationBlock *tb1; | |
867 | unsigned int n1; | |
868 | ||
869 | for(;;) { | |
870 | tb1 = *ptb; | |
8efe0ca8 SW |
871 | n1 = (uintptr_t)tb1 & 3; |
872 | tb1 = (TranslationBlock *)((uintptr_t)tb1 & ~3); | |
9fa3e853 FB |
873 | if (tb1 == tb) { |
874 | *ptb = tb1->page_next[n1]; | |
875 | break; | |
876 | } | |
877 | ptb = &tb1->page_next[n1]; | |
878 | } | |
879 | } | |
880 | ||
d4e8164f FB |
881 | static inline void tb_jmp_remove(TranslationBlock *tb, int n) |
882 | { | |
883 | TranslationBlock *tb1, **ptb; | |
884 | unsigned int n1; | |
885 | ||
886 | ptb = &tb->jmp_next[n]; | |
887 | tb1 = *ptb; | |
888 | if (tb1) { | |
889 | /* find tb(n) in circular list */ | |
890 | for(;;) { | |
891 | tb1 = *ptb; | |
8efe0ca8 SW |
892 | n1 = (uintptr_t)tb1 & 3; |
893 | tb1 = (TranslationBlock *)((uintptr_t)tb1 & ~3); | |
d4e8164f FB |
894 | if (n1 == n && tb1 == tb) |
895 | break; | |
896 | if (n1 == 2) { | |
897 | ptb = &tb1->jmp_first; | |
898 | } else { | |
899 | ptb = &tb1->jmp_next[n1]; | |
900 | } | |
901 | } | |
902 | /* now we can suppress tb(n) from the list */ | |
903 | *ptb = tb->jmp_next[n]; | |
904 | ||
905 | tb->jmp_next[n] = NULL; | |
906 | } | |
907 | } | |
908 | ||
909 | /* reset the jump entry 'n' of a TB so that it is not chained to | |
910 | another TB */ | |
911 | static inline void tb_reset_jump(TranslationBlock *tb, int n) | |
912 | { | |
8efe0ca8 | 913 | tb_set_jmp_target(tb, n, (uintptr_t)(tb->tc_ptr + tb->tb_next_offset[n])); |
d4e8164f FB |
914 | } |
915 | ||
41c1b1c9 | 916 | void tb_phys_invalidate(TranslationBlock *tb, tb_page_addr_t page_addr) |
fd6ce8f6 | 917 | { |
9349b4f9 | 918 | CPUArchState *env; |
8a40a180 | 919 | PageDesc *p; |
d4e8164f | 920 | unsigned int h, n1; |
41c1b1c9 | 921 | tb_page_addr_t phys_pc; |
8a40a180 | 922 | TranslationBlock *tb1, *tb2; |
3b46e624 | 923 | |
8a40a180 FB |
924 | /* remove the TB from the hash list */ |
925 | phys_pc = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK); | |
926 | h = tb_phys_hash_func(phys_pc); | |
5fafdf24 | 927 | tb_remove(&tb_phys_hash[h], tb, |
8a40a180 FB |
928 | offsetof(TranslationBlock, phys_hash_next)); |
929 | ||
930 | /* remove the TB from the page list */ | |
931 | if (tb->page_addr[0] != page_addr) { | |
932 | p = page_find(tb->page_addr[0] >> TARGET_PAGE_BITS); | |
933 | tb_page_remove(&p->first_tb, tb); | |
934 | invalidate_page_bitmap(p); | |
935 | } | |
936 | if (tb->page_addr[1] != -1 && tb->page_addr[1] != page_addr) { | |
937 | p = page_find(tb->page_addr[1] >> TARGET_PAGE_BITS); | |
938 | tb_page_remove(&p->first_tb, tb); | |
939 | invalidate_page_bitmap(p); | |
940 | } | |
941 | ||
36bdbe54 | 942 | tb_invalidated_flag = 1; |
59817ccb | 943 | |
fd6ce8f6 | 944 | /* remove the TB from the hash list */ |
8a40a180 | 945 | h = tb_jmp_cache_hash_func(tb->pc); |
6a00d601 FB |
946 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
947 | if (env->tb_jmp_cache[h] == tb) | |
948 | env->tb_jmp_cache[h] = NULL; | |
949 | } | |
d4e8164f FB |
950 | |
951 | /* suppress this TB from the two jump lists */ | |
952 | tb_jmp_remove(tb, 0); | |
953 | tb_jmp_remove(tb, 1); | |
954 | ||
955 | /* suppress any remaining jumps to this TB */ | |
956 | tb1 = tb->jmp_first; | |
957 | for(;;) { | |
8efe0ca8 | 958 | n1 = (uintptr_t)tb1 & 3; |
d4e8164f FB |
959 | if (n1 == 2) |
960 | break; | |
8efe0ca8 | 961 | tb1 = (TranslationBlock *)((uintptr_t)tb1 & ~3); |
d4e8164f FB |
962 | tb2 = tb1->jmp_next[n1]; |
963 | tb_reset_jump(tb1, n1); | |
964 | tb1->jmp_next[n1] = NULL; | |
965 | tb1 = tb2; | |
966 | } | |
8efe0ca8 | 967 | tb->jmp_first = (TranslationBlock *)((uintptr_t)tb | 2); /* fail safe */ |
9fa3e853 | 968 | |
e3db7226 | 969 | tb_phys_invalidate_count++; |
9fa3e853 FB |
970 | } |
971 | ||
972 | static inline void set_bits(uint8_t *tab, int start, int len) | |
973 | { | |
974 | int end, mask, end1; | |
975 | ||
976 | end = start + len; | |
977 | tab += start >> 3; | |
978 | mask = 0xff << (start & 7); | |
979 | if ((start & ~7) == (end & ~7)) { | |
980 | if (start < end) { | |
981 | mask &= ~(0xff << (end & 7)); | |
982 | *tab |= mask; | |
983 | } | |
984 | } else { | |
985 | *tab++ |= mask; | |
986 | start = (start + 8) & ~7; | |
987 | end1 = end & ~7; | |
988 | while (start < end1) { | |
989 | *tab++ = 0xff; | |
990 | start += 8; | |
991 | } | |
992 | if (start < end) { | |
993 | mask = ~(0xff << (end & 7)); | |
994 | *tab |= mask; | |
995 | } | |
996 | } | |
997 | } | |
998 | ||
999 | static void build_page_bitmap(PageDesc *p) | |
1000 | { | |
1001 | int n, tb_start, tb_end; | |
1002 | TranslationBlock *tb; | |
3b46e624 | 1003 | |
7267c094 | 1004 | p->code_bitmap = g_malloc0(TARGET_PAGE_SIZE / 8); |
9fa3e853 FB |
1005 | |
1006 | tb = p->first_tb; | |
1007 | while (tb != NULL) { | |
8efe0ca8 SW |
1008 | n = (uintptr_t)tb & 3; |
1009 | tb = (TranslationBlock *)((uintptr_t)tb & ~3); | |
9fa3e853 FB |
1010 | /* NOTE: this is subtle as a TB may span two physical pages */ |
1011 | if (n == 0) { | |
1012 | /* NOTE: tb_end may be after the end of the page, but | |
1013 | it is not a problem */ | |
1014 | tb_start = tb->pc & ~TARGET_PAGE_MASK; | |
1015 | tb_end = tb_start + tb->size; | |
1016 | if (tb_end > TARGET_PAGE_SIZE) | |
1017 | tb_end = TARGET_PAGE_SIZE; | |
1018 | } else { | |
1019 | tb_start = 0; | |
1020 | tb_end = ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); | |
1021 | } | |
1022 | set_bits(p->code_bitmap, tb_start, tb_end - tb_start); | |
1023 | tb = tb->page_next[n]; | |
1024 | } | |
1025 | } | |
1026 | ||
9349b4f9 | 1027 | TranslationBlock *tb_gen_code(CPUArchState *env, |
2e70f6ef PB |
1028 | target_ulong pc, target_ulong cs_base, |
1029 | int flags, int cflags) | |
d720b93d FB |
1030 | { |
1031 | TranslationBlock *tb; | |
1032 | uint8_t *tc_ptr; | |
41c1b1c9 PB |
1033 | tb_page_addr_t phys_pc, phys_page2; |
1034 | target_ulong virt_page2; | |
d720b93d FB |
1035 | int code_gen_size; |
1036 | ||
41c1b1c9 | 1037 | phys_pc = get_page_addr_code(env, pc); |
c27004ec | 1038 | tb = tb_alloc(pc); |
d720b93d FB |
1039 | if (!tb) { |
1040 | /* flush must be done */ | |
1041 | tb_flush(env); | |
1042 | /* cannot fail at this point */ | |
c27004ec | 1043 | tb = tb_alloc(pc); |
2e70f6ef PB |
1044 | /* Don't forget to invalidate previous TB info. */ |
1045 | tb_invalidated_flag = 1; | |
d720b93d FB |
1046 | } |
1047 | tc_ptr = code_gen_ptr; | |
1048 | tb->tc_ptr = tc_ptr; | |
1049 | tb->cs_base = cs_base; | |
1050 | tb->flags = flags; | |
1051 | tb->cflags = cflags; | |
d07bde88 | 1052 | cpu_gen_code(env, tb, &code_gen_size); |
8efe0ca8 SW |
1053 | code_gen_ptr = (void *)(((uintptr_t)code_gen_ptr + code_gen_size + |
1054 | CODE_GEN_ALIGN - 1) & ~(CODE_GEN_ALIGN - 1)); | |
3b46e624 | 1055 | |
d720b93d | 1056 | /* check next page if needed */ |
c27004ec | 1057 | virt_page2 = (pc + tb->size - 1) & TARGET_PAGE_MASK; |
d720b93d | 1058 | phys_page2 = -1; |
c27004ec | 1059 | if ((pc & TARGET_PAGE_MASK) != virt_page2) { |
41c1b1c9 | 1060 | phys_page2 = get_page_addr_code(env, virt_page2); |
d720b93d | 1061 | } |
41c1b1c9 | 1062 | tb_link_page(tb, phys_pc, phys_page2); |
2e70f6ef | 1063 | return tb; |
d720b93d | 1064 | } |
3b46e624 | 1065 | |
77a8f1a5 | 1066 | /* |
8e0fdce3 JK |
1067 | * Invalidate all TBs which intersect with the target physical address range |
1068 | * [start;end[. NOTE: start and end may refer to *different* physical pages. | |
1069 | * 'is_cpu_write_access' should be true if called from a real cpu write | |
1070 | * access: the virtual CPU will exit the current TB if code is modified inside | |
1071 | * this TB. | |
77a8f1a5 AG |
1072 | */ |
1073 | void tb_invalidate_phys_range(tb_page_addr_t start, tb_page_addr_t end, | |
1074 | int is_cpu_write_access) | |
1075 | { | |
1076 | while (start < end) { | |
1077 | tb_invalidate_phys_page_range(start, end, is_cpu_write_access); | |
1078 | start &= TARGET_PAGE_MASK; | |
1079 | start += TARGET_PAGE_SIZE; | |
1080 | } | |
1081 | } | |
1082 | ||
8e0fdce3 JK |
1083 | /* |
1084 | * Invalidate all TBs which intersect with the target physical address range | |
1085 | * [start;end[. NOTE: start and end must refer to the *same* physical page. | |
1086 | * 'is_cpu_write_access' should be true if called from a real cpu write | |
1087 | * access: the virtual CPU will exit the current TB if code is modified inside | |
1088 | * this TB. | |
1089 | */ | |
41c1b1c9 | 1090 | void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end, |
d720b93d FB |
1091 | int is_cpu_write_access) |
1092 | { | |
6b917547 | 1093 | TranslationBlock *tb, *tb_next, *saved_tb; |
9349b4f9 | 1094 | CPUArchState *env = cpu_single_env; |
41c1b1c9 | 1095 | tb_page_addr_t tb_start, tb_end; |
6b917547 AL |
1096 | PageDesc *p; |
1097 | int n; | |
1098 | #ifdef TARGET_HAS_PRECISE_SMC | |
1099 | int current_tb_not_found = is_cpu_write_access; | |
1100 | TranslationBlock *current_tb = NULL; | |
1101 | int current_tb_modified = 0; | |
1102 | target_ulong current_pc = 0; | |
1103 | target_ulong current_cs_base = 0; | |
1104 | int current_flags = 0; | |
1105 | #endif /* TARGET_HAS_PRECISE_SMC */ | |
9fa3e853 FB |
1106 | |
1107 | p = page_find(start >> TARGET_PAGE_BITS); | |
5fafdf24 | 1108 | if (!p) |
9fa3e853 | 1109 | return; |
5fafdf24 | 1110 | if (!p->code_bitmap && |
d720b93d FB |
1111 | ++p->code_write_count >= SMC_BITMAP_USE_THRESHOLD && |
1112 | is_cpu_write_access) { | |
9fa3e853 FB |
1113 | /* build code bitmap */ |
1114 | build_page_bitmap(p); | |
1115 | } | |
1116 | ||
1117 | /* we remove all the TBs in the range [start, end[ */ | |
1118 | /* XXX: see if in some cases it could be faster to invalidate all the code */ | |
1119 | tb = p->first_tb; | |
1120 | while (tb != NULL) { | |
8efe0ca8 SW |
1121 | n = (uintptr_t)tb & 3; |
1122 | tb = (TranslationBlock *)((uintptr_t)tb & ~3); | |
9fa3e853 FB |
1123 | tb_next = tb->page_next[n]; |
1124 | /* NOTE: this is subtle as a TB may span two physical pages */ | |
1125 | if (n == 0) { | |
1126 | /* NOTE: tb_end may be after the end of the page, but | |
1127 | it is not a problem */ | |
1128 | tb_start = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK); | |
1129 | tb_end = tb_start + tb->size; | |
1130 | } else { | |
1131 | tb_start = tb->page_addr[1]; | |
1132 | tb_end = tb_start + ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); | |
1133 | } | |
1134 | if (!(tb_end <= start || tb_start >= end)) { | |
d720b93d FB |
1135 | #ifdef TARGET_HAS_PRECISE_SMC |
1136 | if (current_tb_not_found) { | |
1137 | current_tb_not_found = 0; | |
1138 | current_tb = NULL; | |
2e70f6ef | 1139 | if (env->mem_io_pc) { |
d720b93d | 1140 | /* now we have a real cpu fault */ |
2e70f6ef | 1141 | current_tb = tb_find_pc(env->mem_io_pc); |
d720b93d FB |
1142 | } |
1143 | } | |
1144 | if (current_tb == tb && | |
2e70f6ef | 1145 | (current_tb->cflags & CF_COUNT_MASK) != 1) { |
d720b93d FB |
1146 | /* If we are modifying the current TB, we must stop |
1147 | its execution. We could be more precise by checking | |
1148 | that the modification is after the current PC, but it | |
1149 | would require a specialized function to partially | |
1150 | restore the CPU state */ | |
3b46e624 | 1151 | |
d720b93d | 1152 | current_tb_modified = 1; |
618ba8e6 | 1153 | cpu_restore_state(current_tb, env, env->mem_io_pc); |
6b917547 AL |
1154 | cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, |
1155 | ¤t_flags); | |
d720b93d FB |
1156 | } |
1157 | #endif /* TARGET_HAS_PRECISE_SMC */ | |
6f5a9f7e FB |
1158 | /* we need to do that to handle the case where a signal |
1159 | occurs while doing tb_phys_invalidate() */ | |
1160 | saved_tb = NULL; | |
1161 | if (env) { | |
1162 | saved_tb = env->current_tb; | |
1163 | env->current_tb = NULL; | |
1164 | } | |
9fa3e853 | 1165 | tb_phys_invalidate(tb, -1); |
6f5a9f7e FB |
1166 | if (env) { |
1167 | env->current_tb = saved_tb; | |
1168 | if (env->interrupt_request && env->current_tb) | |
1169 | cpu_interrupt(env, env->interrupt_request); | |
1170 | } | |
9fa3e853 FB |
1171 | } |
1172 | tb = tb_next; | |
1173 | } | |
1174 | #if !defined(CONFIG_USER_ONLY) | |
1175 | /* if no code remaining, no need to continue to use slow writes */ | |
1176 | if (!p->first_tb) { | |
1177 | invalidate_page_bitmap(p); | |
d720b93d | 1178 | if (is_cpu_write_access) { |
2e70f6ef | 1179 | tlb_unprotect_code_phys(env, start, env->mem_io_vaddr); |
d720b93d FB |
1180 | } |
1181 | } | |
1182 | #endif | |
1183 | #ifdef TARGET_HAS_PRECISE_SMC | |
1184 | if (current_tb_modified) { | |
1185 | /* we generate a block containing just the instruction | |
1186 | modifying the memory. It will ensure that it cannot modify | |
1187 | itself */ | |
ea1c1802 | 1188 | env->current_tb = NULL; |
2e70f6ef | 1189 | tb_gen_code(env, current_pc, current_cs_base, current_flags, 1); |
d720b93d | 1190 | cpu_resume_from_signal(env, NULL); |
9fa3e853 | 1191 | } |
fd6ce8f6 | 1192 | #endif |
9fa3e853 | 1193 | } |
fd6ce8f6 | 1194 | |
9fa3e853 | 1195 | /* len must be <= 8 and start must be a multiple of len */ |
41c1b1c9 | 1196 | static inline void tb_invalidate_phys_page_fast(tb_page_addr_t start, int len) |
9fa3e853 FB |
1197 | { |
1198 | PageDesc *p; | |
1199 | int offset, b; | |
59817ccb | 1200 | #if 0 |
a4193c8a | 1201 | if (1) { |
93fcfe39 AL |
1202 | qemu_log("modifying code at 0x%x size=%d EIP=%x PC=%08x\n", |
1203 | cpu_single_env->mem_io_vaddr, len, | |
1204 | cpu_single_env->eip, | |
8efe0ca8 SW |
1205 | cpu_single_env->eip + |
1206 | (intptr_t)cpu_single_env->segs[R_CS].base); | |
59817ccb FB |
1207 | } |
1208 | #endif | |
9fa3e853 | 1209 | p = page_find(start >> TARGET_PAGE_BITS); |
5fafdf24 | 1210 | if (!p) |
9fa3e853 FB |
1211 | return; |
1212 | if (p->code_bitmap) { | |
1213 | offset = start & ~TARGET_PAGE_MASK; | |
1214 | b = p->code_bitmap[offset >> 3] >> (offset & 7); | |
1215 | if (b & ((1 << len) - 1)) | |
1216 | goto do_invalidate; | |
1217 | } else { | |
1218 | do_invalidate: | |
d720b93d | 1219 | tb_invalidate_phys_page_range(start, start + len, 1); |
9fa3e853 FB |
1220 | } |
1221 | } | |
1222 | ||
9fa3e853 | 1223 | #if !defined(CONFIG_SOFTMMU) |
41c1b1c9 | 1224 | static void tb_invalidate_phys_page(tb_page_addr_t addr, |
20503968 | 1225 | uintptr_t pc, void *puc) |
9fa3e853 | 1226 | { |
6b917547 | 1227 | TranslationBlock *tb; |
9fa3e853 | 1228 | PageDesc *p; |
6b917547 | 1229 | int n; |
d720b93d | 1230 | #ifdef TARGET_HAS_PRECISE_SMC |
6b917547 | 1231 | TranslationBlock *current_tb = NULL; |
9349b4f9 | 1232 | CPUArchState *env = cpu_single_env; |
6b917547 AL |
1233 | int current_tb_modified = 0; |
1234 | target_ulong current_pc = 0; | |
1235 | target_ulong current_cs_base = 0; | |
1236 | int current_flags = 0; | |
d720b93d | 1237 | #endif |
9fa3e853 FB |
1238 | |
1239 | addr &= TARGET_PAGE_MASK; | |
1240 | p = page_find(addr >> TARGET_PAGE_BITS); | |
5fafdf24 | 1241 | if (!p) |
9fa3e853 FB |
1242 | return; |
1243 | tb = p->first_tb; | |
d720b93d FB |
1244 | #ifdef TARGET_HAS_PRECISE_SMC |
1245 | if (tb && pc != 0) { | |
1246 | current_tb = tb_find_pc(pc); | |
1247 | } | |
1248 | #endif | |
9fa3e853 | 1249 | while (tb != NULL) { |
8efe0ca8 SW |
1250 | n = (uintptr_t)tb & 3; |
1251 | tb = (TranslationBlock *)((uintptr_t)tb & ~3); | |
d720b93d FB |
1252 | #ifdef TARGET_HAS_PRECISE_SMC |
1253 | if (current_tb == tb && | |
2e70f6ef | 1254 | (current_tb->cflags & CF_COUNT_MASK) != 1) { |
d720b93d FB |
1255 | /* If we are modifying the current TB, we must stop |
1256 | its execution. We could be more precise by checking | |
1257 | that the modification is after the current PC, but it | |
1258 | would require a specialized function to partially | |
1259 | restore the CPU state */ | |
3b46e624 | 1260 | |
d720b93d | 1261 | current_tb_modified = 1; |
618ba8e6 | 1262 | cpu_restore_state(current_tb, env, pc); |
6b917547 AL |
1263 | cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, |
1264 | ¤t_flags); | |
d720b93d FB |
1265 | } |
1266 | #endif /* TARGET_HAS_PRECISE_SMC */ | |
9fa3e853 FB |
1267 | tb_phys_invalidate(tb, addr); |
1268 | tb = tb->page_next[n]; | |
1269 | } | |
fd6ce8f6 | 1270 | p->first_tb = NULL; |
d720b93d FB |
1271 | #ifdef TARGET_HAS_PRECISE_SMC |
1272 | if (current_tb_modified) { | |
1273 | /* we generate a block containing just the instruction | |
1274 | modifying the memory. It will ensure that it cannot modify | |
1275 | itself */ | |
ea1c1802 | 1276 | env->current_tb = NULL; |
2e70f6ef | 1277 | tb_gen_code(env, current_pc, current_cs_base, current_flags, 1); |
d720b93d FB |
1278 | cpu_resume_from_signal(env, puc); |
1279 | } | |
1280 | #endif | |
fd6ce8f6 | 1281 | } |
9fa3e853 | 1282 | #endif |
fd6ce8f6 FB |
1283 | |
1284 | /* add the tb in the target page and protect it if necessary */ | |
5fafdf24 | 1285 | static inline void tb_alloc_page(TranslationBlock *tb, |
41c1b1c9 | 1286 | unsigned int n, tb_page_addr_t page_addr) |
fd6ce8f6 FB |
1287 | { |
1288 | PageDesc *p; | |
4429ab44 JQ |
1289 | #ifndef CONFIG_USER_ONLY |
1290 | bool page_already_protected; | |
1291 | #endif | |
9fa3e853 FB |
1292 | |
1293 | tb->page_addr[n] = page_addr; | |
5cd2c5b6 | 1294 | p = page_find_alloc(page_addr >> TARGET_PAGE_BITS, 1); |
9fa3e853 | 1295 | tb->page_next[n] = p->first_tb; |
4429ab44 JQ |
1296 | #ifndef CONFIG_USER_ONLY |
1297 | page_already_protected = p->first_tb != NULL; | |
1298 | #endif | |
8efe0ca8 | 1299 | p->first_tb = (TranslationBlock *)((uintptr_t)tb | n); |
9fa3e853 | 1300 | invalidate_page_bitmap(p); |
fd6ce8f6 | 1301 | |
107db443 | 1302 | #if defined(TARGET_HAS_SMC) || 1 |
d720b93d | 1303 | |
9fa3e853 | 1304 | #if defined(CONFIG_USER_ONLY) |
fd6ce8f6 | 1305 | if (p->flags & PAGE_WRITE) { |
53a5960a PB |
1306 | target_ulong addr; |
1307 | PageDesc *p2; | |
9fa3e853 FB |
1308 | int prot; |
1309 | ||
fd6ce8f6 FB |
1310 | /* force the host page as non writable (writes will have a |
1311 | page fault + mprotect overhead) */ | |
53a5960a | 1312 | page_addr &= qemu_host_page_mask; |
fd6ce8f6 | 1313 | prot = 0; |
53a5960a PB |
1314 | for(addr = page_addr; addr < page_addr + qemu_host_page_size; |
1315 | addr += TARGET_PAGE_SIZE) { | |
1316 | ||
1317 | p2 = page_find (addr >> TARGET_PAGE_BITS); | |
1318 | if (!p2) | |
1319 | continue; | |
1320 | prot |= p2->flags; | |
1321 | p2->flags &= ~PAGE_WRITE; | |
53a5960a | 1322 | } |
5fafdf24 | 1323 | mprotect(g2h(page_addr), qemu_host_page_size, |
fd6ce8f6 FB |
1324 | (prot & PAGE_BITS) & ~PAGE_WRITE); |
1325 | #ifdef DEBUG_TB_INVALIDATE | |
ab3d1727 | 1326 | printf("protecting code page: 0x" TARGET_FMT_lx "\n", |
53a5960a | 1327 | page_addr); |
fd6ce8f6 | 1328 | #endif |
fd6ce8f6 | 1329 | } |
9fa3e853 FB |
1330 | #else |
1331 | /* if some code is already present, then the pages are already | |
1332 | protected. So we handle the case where only the first TB is | |
1333 | allocated in a physical page */ | |
4429ab44 | 1334 | if (!page_already_protected) { |
6a00d601 | 1335 | tlb_protect_code(page_addr); |
9fa3e853 FB |
1336 | } |
1337 | #endif | |
d720b93d FB |
1338 | |
1339 | #endif /* TARGET_HAS_SMC */ | |
fd6ce8f6 FB |
1340 | } |
1341 | ||
9fa3e853 FB |
1342 | /* add a new TB and link it to the physical page tables. phys_page2 is |
1343 | (-1) to indicate that only one page contains the TB. */ | |
41c1b1c9 PB |
1344 | void tb_link_page(TranslationBlock *tb, |
1345 | tb_page_addr_t phys_pc, tb_page_addr_t phys_page2) | |
d4e8164f | 1346 | { |
9fa3e853 FB |
1347 | unsigned int h; |
1348 | TranslationBlock **ptb; | |
1349 | ||
c8a706fe PB |
1350 | /* Grab the mmap lock to stop another thread invalidating this TB |
1351 | before we are done. */ | |
1352 | mmap_lock(); | |
9fa3e853 FB |
1353 | /* add in the physical hash table */ |
1354 | h = tb_phys_hash_func(phys_pc); | |
1355 | ptb = &tb_phys_hash[h]; | |
1356 | tb->phys_hash_next = *ptb; | |
1357 | *ptb = tb; | |
fd6ce8f6 FB |
1358 | |
1359 | /* add in the page list */ | |
9fa3e853 FB |
1360 | tb_alloc_page(tb, 0, phys_pc & TARGET_PAGE_MASK); |
1361 | if (phys_page2 != -1) | |
1362 | tb_alloc_page(tb, 1, phys_page2); | |
1363 | else | |
1364 | tb->page_addr[1] = -1; | |
9fa3e853 | 1365 | |
8efe0ca8 | 1366 | tb->jmp_first = (TranslationBlock *)((uintptr_t)tb | 2); |
d4e8164f FB |
1367 | tb->jmp_next[0] = NULL; |
1368 | tb->jmp_next[1] = NULL; | |
1369 | ||
1370 | /* init original jump addresses */ | |
1371 | if (tb->tb_next_offset[0] != 0xffff) | |
1372 | tb_reset_jump(tb, 0); | |
1373 | if (tb->tb_next_offset[1] != 0xffff) | |
1374 | tb_reset_jump(tb, 1); | |
8a40a180 FB |
1375 | |
1376 | #ifdef DEBUG_TB_CHECK | |
1377 | tb_page_check(); | |
1378 | #endif | |
c8a706fe | 1379 | mmap_unlock(); |
fd6ce8f6 FB |
1380 | } |
1381 | ||
9fa3e853 FB |
1382 | /* find the TB 'tb' such that tb[0].tc_ptr <= tc_ptr < |
1383 | tb[1].tc_ptr. Return NULL if not found */ | |
6375e09e | 1384 | TranslationBlock *tb_find_pc(uintptr_t tc_ptr) |
fd6ce8f6 | 1385 | { |
9fa3e853 | 1386 | int m_min, m_max, m; |
8efe0ca8 | 1387 | uintptr_t v; |
9fa3e853 | 1388 | TranslationBlock *tb; |
a513fe19 FB |
1389 | |
1390 | if (nb_tbs <= 0) | |
1391 | return NULL; | |
8efe0ca8 SW |
1392 | if (tc_ptr < (uintptr_t)code_gen_buffer || |
1393 | tc_ptr >= (uintptr_t)code_gen_ptr) { | |
a513fe19 | 1394 | return NULL; |
8efe0ca8 | 1395 | } |
a513fe19 FB |
1396 | /* binary search (cf Knuth) */ |
1397 | m_min = 0; | |
1398 | m_max = nb_tbs - 1; | |
1399 | while (m_min <= m_max) { | |
1400 | m = (m_min + m_max) >> 1; | |
1401 | tb = &tbs[m]; | |
8efe0ca8 | 1402 | v = (uintptr_t)tb->tc_ptr; |
a513fe19 FB |
1403 | if (v == tc_ptr) |
1404 | return tb; | |
1405 | else if (tc_ptr < v) { | |
1406 | m_max = m - 1; | |
1407 | } else { | |
1408 | m_min = m + 1; | |
1409 | } | |
5fafdf24 | 1410 | } |
a513fe19 FB |
1411 | return &tbs[m_max]; |
1412 | } | |
7501267e | 1413 | |
ea041c0e FB |
1414 | static void tb_reset_jump_recursive(TranslationBlock *tb); |
1415 | ||
1416 | static inline void tb_reset_jump_recursive2(TranslationBlock *tb, int n) | |
1417 | { | |
1418 | TranslationBlock *tb1, *tb_next, **ptb; | |
1419 | unsigned int n1; | |
1420 | ||
1421 | tb1 = tb->jmp_next[n]; | |
1422 | if (tb1 != NULL) { | |
1423 | /* find head of list */ | |
1424 | for(;;) { | |
8efe0ca8 SW |
1425 | n1 = (uintptr_t)tb1 & 3; |
1426 | tb1 = (TranslationBlock *)((uintptr_t)tb1 & ~3); | |
ea041c0e FB |
1427 | if (n1 == 2) |
1428 | break; | |
1429 | tb1 = tb1->jmp_next[n1]; | |
1430 | } | |
1431 | /* we are now sure now that tb jumps to tb1 */ | |
1432 | tb_next = tb1; | |
1433 | ||
1434 | /* remove tb from the jmp_first list */ | |
1435 | ptb = &tb_next->jmp_first; | |
1436 | for(;;) { | |
1437 | tb1 = *ptb; | |
8efe0ca8 SW |
1438 | n1 = (uintptr_t)tb1 & 3; |
1439 | tb1 = (TranslationBlock *)((uintptr_t)tb1 & ~3); | |
ea041c0e FB |
1440 | if (n1 == n && tb1 == tb) |
1441 | break; | |
1442 | ptb = &tb1->jmp_next[n1]; | |
1443 | } | |
1444 | *ptb = tb->jmp_next[n]; | |
1445 | tb->jmp_next[n] = NULL; | |
3b46e624 | 1446 | |
ea041c0e FB |
1447 | /* suppress the jump to next tb in generated code */ |
1448 | tb_reset_jump(tb, n); | |
1449 | ||
0124311e | 1450 | /* suppress jumps in the tb on which we could have jumped */ |
ea041c0e FB |
1451 | tb_reset_jump_recursive(tb_next); |
1452 | } | |
1453 | } | |
1454 | ||
1455 | static void tb_reset_jump_recursive(TranslationBlock *tb) | |
1456 | { | |
1457 | tb_reset_jump_recursive2(tb, 0); | |
1458 | tb_reset_jump_recursive2(tb, 1); | |
1459 | } | |
1460 | ||
1fddef4b | 1461 | #if defined(TARGET_HAS_ICE) |
94df27fd | 1462 | #if defined(CONFIG_USER_ONLY) |
9349b4f9 | 1463 | static void breakpoint_invalidate(CPUArchState *env, target_ulong pc) |
94df27fd PB |
1464 | { |
1465 | tb_invalidate_phys_page_range(pc, pc + 1, 0); | |
1466 | } | |
1467 | #else | |
1e7855a5 | 1468 | void tb_invalidate_phys_addr(target_phys_addr_t addr) |
d720b93d | 1469 | { |
c227f099 | 1470 | ram_addr_t ram_addr; |
f3705d53 | 1471 | MemoryRegionSection *section; |
d720b93d | 1472 | |
06ef3525 | 1473 | section = phys_page_find(addr >> TARGET_PAGE_BITS); |
f3705d53 AK |
1474 | if (!(memory_region_is_ram(section->mr) |
1475 | || (section->mr->rom_device && section->mr->readable))) { | |
06ef3525 AK |
1476 | return; |
1477 | } | |
f3705d53 | 1478 | ram_addr = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) |
cc5bea60 | 1479 | + memory_region_section_addr(section, addr); |
706cd4b5 | 1480 | tb_invalidate_phys_page_range(ram_addr, ram_addr + 1, 0); |
d720b93d | 1481 | } |
1e7855a5 MF |
1482 | |
1483 | static void breakpoint_invalidate(CPUArchState *env, target_ulong pc) | |
1484 | { | |
9d70c4b7 MF |
1485 | tb_invalidate_phys_addr(cpu_get_phys_page_debug(env, pc) | |
1486 | (pc & ~TARGET_PAGE_MASK)); | |
1e7855a5 | 1487 | } |
c27004ec | 1488 | #endif |
94df27fd | 1489 | #endif /* TARGET_HAS_ICE */ |
d720b93d | 1490 | |
c527ee8f | 1491 | #if defined(CONFIG_USER_ONLY) |
9349b4f9 | 1492 | void cpu_watchpoint_remove_all(CPUArchState *env, int mask) |
c527ee8f PB |
1493 | |
1494 | { | |
1495 | } | |
1496 | ||
9349b4f9 | 1497 | int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len, |
c527ee8f PB |
1498 | int flags, CPUWatchpoint **watchpoint) |
1499 | { | |
1500 | return -ENOSYS; | |
1501 | } | |
1502 | #else | |
6658ffb8 | 1503 | /* Add a watchpoint. */ |
9349b4f9 | 1504 | int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len, |
a1d1bb31 | 1505 | int flags, CPUWatchpoint **watchpoint) |
6658ffb8 | 1506 | { |
b4051334 | 1507 | target_ulong len_mask = ~(len - 1); |
c0ce998e | 1508 | CPUWatchpoint *wp; |
6658ffb8 | 1509 | |
b4051334 | 1510 | /* sanity checks: allow power-of-2 lengths, deny unaligned watchpoints */ |
0dc23828 MF |
1511 | if ((len & (len - 1)) || (addr & ~len_mask) || |
1512 | len == 0 || len > TARGET_PAGE_SIZE) { | |
b4051334 AL |
1513 | fprintf(stderr, "qemu: tried to set invalid watchpoint at " |
1514 | TARGET_FMT_lx ", len=" TARGET_FMT_lu "\n", addr, len); | |
1515 | return -EINVAL; | |
1516 | } | |
7267c094 | 1517 | wp = g_malloc(sizeof(*wp)); |
a1d1bb31 AL |
1518 | |
1519 | wp->vaddr = addr; | |
b4051334 | 1520 | wp->len_mask = len_mask; |
a1d1bb31 AL |
1521 | wp->flags = flags; |
1522 | ||
2dc9f411 | 1523 | /* keep all GDB-injected watchpoints in front */ |
c0ce998e | 1524 | if (flags & BP_GDB) |
72cf2d4f | 1525 | QTAILQ_INSERT_HEAD(&env->watchpoints, wp, entry); |
c0ce998e | 1526 | else |
72cf2d4f | 1527 | QTAILQ_INSERT_TAIL(&env->watchpoints, wp, entry); |
6658ffb8 | 1528 | |
6658ffb8 | 1529 | tlb_flush_page(env, addr); |
a1d1bb31 AL |
1530 | |
1531 | if (watchpoint) | |
1532 | *watchpoint = wp; | |
1533 | return 0; | |
6658ffb8 PB |
1534 | } |
1535 | ||
a1d1bb31 | 1536 | /* Remove a specific watchpoint. */ |
9349b4f9 | 1537 | int cpu_watchpoint_remove(CPUArchState *env, target_ulong addr, target_ulong len, |
a1d1bb31 | 1538 | int flags) |
6658ffb8 | 1539 | { |
b4051334 | 1540 | target_ulong len_mask = ~(len - 1); |
a1d1bb31 | 1541 | CPUWatchpoint *wp; |
6658ffb8 | 1542 | |
72cf2d4f | 1543 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
b4051334 | 1544 | if (addr == wp->vaddr && len_mask == wp->len_mask |
6e140f28 | 1545 | && flags == (wp->flags & ~BP_WATCHPOINT_HIT)) { |
a1d1bb31 | 1546 | cpu_watchpoint_remove_by_ref(env, wp); |
6658ffb8 PB |
1547 | return 0; |
1548 | } | |
1549 | } | |
a1d1bb31 | 1550 | return -ENOENT; |
6658ffb8 PB |
1551 | } |
1552 | ||
a1d1bb31 | 1553 | /* Remove a specific watchpoint by reference. */ |
9349b4f9 | 1554 | void cpu_watchpoint_remove_by_ref(CPUArchState *env, CPUWatchpoint *watchpoint) |
a1d1bb31 | 1555 | { |
72cf2d4f | 1556 | QTAILQ_REMOVE(&env->watchpoints, watchpoint, entry); |
7d03f82f | 1557 | |
a1d1bb31 AL |
1558 | tlb_flush_page(env, watchpoint->vaddr); |
1559 | ||
7267c094 | 1560 | g_free(watchpoint); |
a1d1bb31 AL |
1561 | } |
1562 | ||
1563 | /* Remove all matching watchpoints. */ | |
9349b4f9 | 1564 | void cpu_watchpoint_remove_all(CPUArchState *env, int mask) |
a1d1bb31 | 1565 | { |
c0ce998e | 1566 | CPUWatchpoint *wp, *next; |
a1d1bb31 | 1567 | |
72cf2d4f | 1568 | QTAILQ_FOREACH_SAFE(wp, &env->watchpoints, entry, next) { |
a1d1bb31 AL |
1569 | if (wp->flags & mask) |
1570 | cpu_watchpoint_remove_by_ref(env, wp); | |
c0ce998e | 1571 | } |
7d03f82f | 1572 | } |
c527ee8f | 1573 | #endif |
7d03f82f | 1574 | |
a1d1bb31 | 1575 | /* Add a breakpoint. */ |
9349b4f9 | 1576 | int cpu_breakpoint_insert(CPUArchState *env, target_ulong pc, int flags, |
a1d1bb31 | 1577 | CPUBreakpoint **breakpoint) |
4c3a88a2 | 1578 | { |
1fddef4b | 1579 | #if defined(TARGET_HAS_ICE) |
c0ce998e | 1580 | CPUBreakpoint *bp; |
3b46e624 | 1581 | |
7267c094 | 1582 | bp = g_malloc(sizeof(*bp)); |
4c3a88a2 | 1583 | |
a1d1bb31 AL |
1584 | bp->pc = pc; |
1585 | bp->flags = flags; | |
1586 | ||
2dc9f411 | 1587 | /* keep all GDB-injected breakpoints in front */ |
c0ce998e | 1588 | if (flags & BP_GDB) |
72cf2d4f | 1589 | QTAILQ_INSERT_HEAD(&env->breakpoints, bp, entry); |
c0ce998e | 1590 | else |
72cf2d4f | 1591 | QTAILQ_INSERT_TAIL(&env->breakpoints, bp, entry); |
3b46e624 | 1592 | |
d720b93d | 1593 | breakpoint_invalidate(env, pc); |
a1d1bb31 AL |
1594 | |
1595 | if (breakpoint) | |
1596 | *breakpoint = bp; | |
4c3a88a2 FB |
1597 | return 0; |
1598 | #else | |
a1d1bb31 | 1599 | return -ENOSYS; |
4c3a88a2 FB |
1600 | #endif |
1601 | } | |
1602 | ||
a1d1bb31 | 1603 | /* Remove a specific breakpoint. */ |
9349b4f9 | 1604 | int cpu_breakpoint_remove(CPUArchState *env, target_ulong pc, int flags) |
a1d1bb31 | 1605 | { |
7d03f82f | 1606 | #if defined(TARGET_HAS_ICE) |
a1d1bb31 AL |
1607 | CPUBreakpoint *bp; |
1608 | ||
72cf2d4f | 1609 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
a1d1bb31 AL |
1610 | if (bp->pc == pc && bp->flags == flags) { |
1611 | cpu_breakpoint_remove_by_ref(env, bp); | |
1612 | return 0; | |
1613 | } | |
7d03f82f | 1614 | } |
a1d1bb31 AL |
1615 | return -ENOENT; |
1616 | #else | |
1617 | return -ENOSYS; | |
7d03f82f EI |
1618 | #endif |
1619 | } | |
1620 | ||
a1d1bb31 | 1621 | /* Remove a specific breakpoint by reference. */ |
9349b4f9 | 1622 | void cpu_breakpoint_remove_by_ref(CPUArchState *env, CPUBreakpoint *breakpoint) |
4c3a88a2 | 1623 | { |
1fddef4b | 1624 | #if defined(TARGET_HAS_ICE) |
72cf2d4f | 1625 | QTAILQ_REMOVE(&env->breakpoints, breakpoint, entry); |
d720b93d | 1626 | |
a1d1bb31 AL |
1627 | breakpoint_invalidate(env, breakpoint->pc); |
1628 | ||
7267c094 | 1629 | g_free(breakpoint); |
a1d1bb31 AL |
1630 | #endif |
1631 | } | |
1632 | ||
1633 | /* Remove all matching breakpoints. */ | |
9349b4f9 | 1634 | void cpu_breakpoint_remove_all(CPUArchState *env, int mask) |
a1d1bb31 AL |
1635 | { |
1636 | #if defined(TARGET_HAS_ICE) | |
c0ce998e | 1637 | CPUBreakpoint *bp, *next; |
a1d1bb31 | 1638 | |
72cf2d4f | 1639 | QTAILQ_FOREACH_SAFE(bp, &env->breakpoints, entry, next) { |
a1d1bb31 AL |
1640 | if (bp->flags & mask) |
1641 | cpu_breakpoint_remove_by_ref(env, bp); | |
c0ce998e | 1642 | } |
4c3a88a2 FB |
1643 | #endif |
1644 | } | |
1645 | ||
c33a346e FB |
1646 | /* enable or disable single step mode. EXCP_DEBUG is returned by the |
1647 | CPU loop after each instruction */ | |
9349b4f9 | 1648 | void cpu_single_step(CPUArchState *env, int enabled) |
c33a346e | 1649 | { |
1fddef4b | 1650 | #if defined(TARGET_HAS_ICE) |
c33a346e FB |
1651 | if (env->singlestep_enabled != enabled) { |
1652 | env->singlestep_enabled = enabled; | |
e22a25c9 AL |
1653 | if (kvm_enabled()) |
1654 | kvm_update_guest_debug(env, 0); | |
1655 | else { | |
ccbb4d44 | 1656 | /* must flush all the translated code to avoid inconsistencies */ |
e22a25c9 AL |
1657 | /* XXX: only flush what is necessary */ |
1658 | tb_flush(env); | |
1659 | } | |
c33a346e FB |
1660 | } |
1661 | #endif | |
1662 | } | |
1663 | ||
9349b4f9 | 1664 | static void cpu_unlink_tb(CPUArchState *env) |
ea041c0e | 1665 | { |
3098dba0 AJ |
1666 | /* FIXME: TB unchaining isn't SMP safe. For now just ignore the |
1667 | problem and hope the cpu will stop of its own accord. For userspace | |
1668 | emulation this often isn't actually as bad as it sounds. Often | |
1669 | signals are used primarily to interrupt blocking syscalls. */ | |
ea041c0e | 1670 | TranslationBlock *tb; |
c227f099 | 1671 | static spinlock_t interrupt_lock = SPIN_LOCK_UNLOCKED; |
59817ccb | 1672 | |
cab1b4bd | 1673 | spin_lock(&interrupt_lock); |
3098dba0 AJ |
1674 | tb = env->current_tb; |
1675 | /* if the cpu is currently executing code, we must unlink it and | |
1676 | all the potentially executing TB */ | |
f76cfe56 | 1677 | if (tb) { |
3098dba0 AJ |
1678 | env->current_tb = NULL; |
1679 | tb_reset_jump_recursive(tb); | |
be214e6c | 1680 | } |
cab1b4bd | 1681 | spin_unlock(&interrupt_lock); |
3098dba0 AJ |
1682 | } |
1683 | ||
97ffbd8d | 1684 | #ifndef CONFIG_USER_ONLY |
3098dba0 | 1685 | /* mask must never be zero, except for A20 change call */ |
9349b4f9 | 1686 | static void tcg_handle_interrupt(CPUArchState *env, int mask) |
3098dba0 AJ |
1687 | { |
1688 | int old_mask; | |
be214e6c | 1689 | |
2e70f6ef | 1690 | old_mask = env->interrupt_request; |
68a79315 | 1691 | env->interrupt_request |= mask; |
3098dba0 | 1692 | |
8edac960 AL |
1693 | /* |
1694 | * If called from iothread context, wake the target cpu in | |
1695 | * case its halted. | |
1696 | */ | |
b7680cb6 | 1697 | if (!qemu_cpu_is_self(env)) { |
8edac960 AL |
1698 | qemu_cpu_kick(env); |
1699 | return; | |
1700 | } | |
8edac960 | 1701 | |
2e70f6ef | 1702 | if (use_icount) { |
266910c4 | 1703 | env->icount_decr.u16.high = 0xffff; |
2e70f6ef | 1704 | if (!can_do_io(env) |
be214e6c | 1705 | && (mask & ~old_mask) != 0) { |
2e70f6ef PB |
1706 | cpu_abort(env, "Raised interrupt while not in I/O function"); |
1707 | } | |
2e70f6ef | 1708 | } else { |
3098dba0 | 1709 | cpu_unlink_tb(env); |
ea041c0e FB |
1710 | } |
1711 | } | |
1712 | ||
ec6959d0 JK |
1713 | CPUInterruptHandler cpu_interrupt_handler = tcg_handle_interrupt; |
1714 | ||
97ffbd8d JK |
1715 | #else /* CONFIG_USER_ONLY */ |
1716 | ||
9349b4f9 | 1717 | void cpu_interrupt(CPUArchState *env, int mask) |
97ffbd8d JK |
1718 | { |
1719 | env->interrupt_request |= mask; | |
1720 | cpu_unlink_tb(env); | |
1721 | } | |
1722 | #endif /* CONFIG_USER_ONLY */ | |
1723 | ||
9349b4f9 | 1724 | void cpu_reset_interrupt(CPUArchState *env, int mask) |
b54ad049 FB |
1725 | { |
1726 | env->interrupt_request &= ~mask; | |
1727 | } | |
1728 | ||
9349b4f9 | 1729 | void cpu_exit(CPUArchState *env) |
3098dba0 AJ |
1730 | { |
1731 | env->exit_request = 1; | |
1732 | cpu_unlink_tb(env); | |
1733 | } | |
1734 | ||
9349b4f9 | 1735 | void cpu_abort(CPUArchState *env, const char *fmt, ...) |
7501267e FB |
1736 | { |
1737 | va_list ap; | |
493ae1f0 | 1738 | va_list ap2; |
7501267e FB |
1739 | |
1740 | va_start(ap, fmt); | |
493ae1f0 | 1741 | va_copy(ap2, ap); |
7501267e FB |
1742 | fprintf(stderr, "qemu: fatal: "); |
1743 | vfprintf(stderr, fmt, ap); | |
1744 | fprintf(stderr, "\n"); | |
1745 | #ifdef TARGET_I386 | |
7fe48483 FB |
1746 | cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU | X86_DUMP_CCOP); |
1747 | #else | |
1748 | cpu_dump_state(env, stderr, fprintf, 0); | |
7501267e | 1749 | #endif |
93fcfe39 AL |
1750 | if (qemu_log_enabled()) { |
1751 | qemu_log("qemu: fatal: "); | |
1752 | qemu_log_vprintf(fmt, ap2); | |
1753 | qemu_log("\n"); | |
f9373291 | 1754 | #ifdef TARGET_I386 |
93fcfe39 | 1755 | log_cpu_state(env, X86_DUMP_FPU | X86_DUMP_CCOP); |
f9373291 | 1756 | #else |
93fcfe39 | 1757 | log_cpu_state(env, 0); |
f9373291 | 1758 | #endif |
31b1a7b4 | 1759 | qemu_log_flush(); |
93fcfe39 | 1760 | qemu_log_close(); |
924edcae | 1761 | } |
493ae1f0 | 1762 | va_end(ap2); |
f9373291 | 1763 | va_end(ap); |
fd052bf6 RV |
1764 | #if defined(CONFIG_USER_ONLY) |
1765 | { | |
1766 | struct sigaction act; | |
1767 | sigfillset(&act.sa_mask); | |
1768 | act.sa_handler = SIG_DFL; | |
1769 | sigaction(SIGABRT, &act, NULL); | |
1770 | } | |
1771 | #endif | |
7501267e FB |
1772 | abort(); |
1773 | } | |
1774 | ||
9349b4f9 | 1775 | CPUArchState *cpu_copy(CPUArchState *env) |
c5be9f08 | 1776 | { |
9349b4f9 AF |
1777 | CPUArchState *new_env = cpu_init(env->cpu_model_str); |
1778 | CPUArchState *next_cpu = new_env->next_cpu; | |
c5be9f08 | 1779 | int cpu_index = new_env->cpu_index; |
5a38f081 AL |
1780 | #if defined(TARGET_HAS_ICE) |
1781 | CPUBreakpoint *bp; | |
1782 | CPUWatchpoint *wp; | |
1783 | #endif | |
1784 | ||
9349b4f9 | 1785 | memcpy(new_env, env, sizeof(CPUArchState)); |
5a38f081 AL |
1786 | |
1787 | /* Preserve chaining and index. */ | |
c5be9f08 TS |
1788 | new_env->next_cpu = next_cpu; |
1789 | new_env->cpu_index = cpu_index; | |
5a38f081 AL |
1790 | |
1791 | /* Clone all break/watchpoints. | |
1792 | Note: Once we support ptrace with hw-debug register access, make sure | |
1793 | BP_CPU break/watchpoints are handled correctly on clone. */ | |
72cf2d4f BS |
1794 | QTAILQ_INIT(&env->breakpoints); |
1795 | QTAILQ_INIT(&env->watchpoints); | |
5a38f081 | 1796 | #if defined(TARGET_HAS_ICE) |
72cf2d4f | 1797 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
5a38f081 AL |
1798 | cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL); |
1799 | } | |
72cf2d4f | 1800 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
5a38f081 AL |
1801 | cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1, |
1802 | wp->flags, NULL); | |
1803 | } | |
1804 | #endif | |
1805 | ||
c5be9f08 TS |
1806 | return new_env; |
1807 | } | |
1808 | ||
0124311e | 1809 | #if !defined(CONFIG_USER_ONLY) |
0cac1b66 | 1810 | void tb_flush_jmp_cache(CPUArchState *env, target_ulong addr) |
5c751e99 EI |
1811 | { |
1812 | unsigned int i; | |
1813 | ||
1814 | /* Discard jump cache entries for any tb which might potentially | |
1815 | overlap the flushed page. */ | |
1816 | i = tb_jmp_cache_hash_page(addr - TARGET_PAGE_SIZE); | |
1817 | memset (&env->tb_jmp_cache[i], 0, | |
9742bf26 | 1818 | TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *)); |
5c751e99 EI |
1819 | |
1820 | i = tb_jmp_cache_hash_page(addr); | |
1821 | memset (&env->tb_jmp_cache[i], 0, | |
9742bf26 | 1822 | TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *)); |
5c751e99 EI |
1823 | } |
1824 | ||
d24981d3 JQ |
1825 | static void tlb_reset_dirty_range_all(ram_addr_t start, ram_addr_t end, |
1826 | uintptr_t length) | |
1827 | { | |
1828 | uintptr_t start1; | |
1829 | ||
1830 | /* we modify the TLB cache so that the dirty bit will be set again | |
1831 | when accessing the range */ | |
1832 | start1 = (uintptr_t)qemu_safe_ram_ptr(start); | |
1833 | /* Check that we don't span multiple blocks - this breaks the | |
1834 | address comparisons below. */ | |
1835 | if ((uintptr_t)qemu_safe_ram_ptr(end - 1) - start1 | |
1836 | != (end - 1) - start) { | |
1837 | abort(); | |
1838 | } | |
1839 | cpu_tlb_reset_dirty_all(start1, length); | |
1840 | ||
1841 | } | |
1842 | ||
5579c7f3 | 1843 | /* Note: start and end must be within the same ram block. */ |
c227f099 | 1844 | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end, |
0a962c02 | 1845 | int dirty_flags) |
1ccde1cb | 1846 | { |
d24981d3 | 1847 | uintptr_t length; |
1ccde1cb FB |
1848 | |
1849 | start &= TARGET_PAGE_MASK; | |
1850 | end = TARGET_PAGE_ALIGN(end); | |
1851 | ||
1852 | length = end - start; | |
1853 | if (length == 0) | |
1854 | return; | |
f7c11b53 | 1855 | cpu_physical_memory_mask_dirty_range(start, length, dirty_flags); |
f23db169 | 1856 | |
d24981d3 JQ |
1857 | if (tcg_enabled()) { |
1858 | tlb_reset_dirty_range_all(start, end, length); | |
5579c7f3 | 1859 | } |
1ccde1cb FB |
1860 | } |
1861 | ||
74576198 AL |
1862 | int cpu_physical_memory_set_dirty_tracking(int enable) |
1863 | { | |
f6f3fbca | 1864 | int ret = 0; |
74576198 | 1865 | in_migration = enable; |
f6f3fbca | 1866 | return ret; |
74576198 AL |
1867 | } |
1868 | ||
e5548617 BS |
1869 | target_phys_addr_t memory_region_section_get_iotlb(CPUArchState *env, |
1870 | MemoryRegionSection *section, | |
1871 | target_ulong vaddr, | |
1872 | target_phys_addr_t paddr, | |
1873 | int prot, | |
1874 | target_ulong *address) | |
1875 | { | |
1876 | target_phys_addr_t iotlb; | |
1877 | CPUWatchpoint *wp; | |
1878 | ||
cc5bea60 | 1879 | if (memory_region_is_ram(section->mr)) { |
e5548617 BS |
1880 | /* Normal RAM. */ |
1881 | iotlb = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) | |
cc5bea60 | 1882 | + memory_region_section_addr(section, paddr); |
e5548617 BS |
1883 | if (!section->readonly) { |
1884 | iotlb |= phys_section_notdirty; | |
1885 | } else { | |
1886 | iotlb |= phys_section_rom; | |
1887 | } | |
1888 | } else { | |
1889 | /* IO handlers are currently passed a physical address. | |
1890 | It would be nice to pass an offset from the base address | |
1891 | of that region. This would avoid having to special case RAM, | |
1892 | and avoid full address decoding in every device. | |
1893 | We can't use the high bits of pd for this because | |
1894 | IO_MEM_ROMD uses these as a ram address. */ | |
1895 | iotlb = section - phys_sections; | |
cc5bea60 | 1896 | iotlb += memory_region_section_addr(section, paddr); |
e5548617 BS |
1897 | } |
1898 | ||
1899 | /* Make accesses to pages with watchpoints go via the | |
1900 | watchpoint trap routines. */ | |
1901 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { | |
1902 | if (vaddr == (wp->vaddr & TARGET_PAGE_MASK)) { | |
1903 | /* Avoid trapping reads of pages with a write breakpoint. */ | |
1904 | if ((prot & PAGE_WRITE) || (wp->flags & BP_MEM_READ)) { | |
1905 | iotlb = phys_section_watch + paddr; | |
1906 | *address |= TLB_MMIO; | |
1907 | break; | |
1908 | } | |
1909 | } | |
1910 | } | |
1911 | ||
1912 | return iotlb; | |
1913 | } | |
1914 | ||
0124311e | 1915 | #else |
edf8e2af MW |
1916 | /* |
1917 | * Walks guest process memory "regions" one by one | |
1918 | * and calls callback function 'fn' for each region. | |
1919 | */ | |
5cd2c5b6 RH |
1920 | |
1921 | struct walk_memory_regions_data | |
1922 | { | |
1923 | walk_memory_regions_fn fn; | |
1924 | void *priv; | |
8efe0ca8 | 1925 | uintptr_t start; |
5cd2c5b6 RH |
1926 | int prot; |
1927 | }; | |
1928 | ||
1929 | static int walk_memory_regions_end(struct walk_memory_regions_data *data, | |
b480d9b7 | 1930 | abi_ulong end, int new_prot) |
5cd2c5b6 RH |
1931 | { |
1932 | if (data->start != -1ul) { | |
1933 | int rc = data->fn(data->priv, data->start, end, data->prot); | |
1934 | if (rc != 0) { | |
1935 | return rc; | |
1936 | } | |
1937 | } | |
1938 | ||
1939 | data->start = (new_prot ? end : -1ul); | |
1940 | data->prot = new_prot; | |
1941 | ||
1942 | return 0; | |
1943 | } | |
1944 | ||
1945 | static int walk_memory_regions_1(struct walk_memory_regions_data *data, | |
b480d9b7 | 1946 | abi_ulong base, int level, void **lp) |
5cd2c5b6 | 1947 | { |
b480d9b7 | 1948 | abi_ulong pa; |
5cd2c5b6 RH |
1949 | int i, rc; |
1950 | ||
1951 | if (*lp == NULL) { | |
1952 | return walk_memory_regions_end(data, base, 0); | |
1953 | } | |
1954 | ||
1955 | if (level == 0) { | |
1956 | PageDesc *pd = *lp; | |
7296abac | 1957 | for (i = 0; i < L2_SIZE; ++i) { |
5cd2c5b6 RH |
1958 | int prot = pd[i].flags; |
1959 | ||
1960 | pa = base | (i << TARGET_PAGE_BITS); | |
1961 | if (prot != data->prot) { | |
1962 | rc = walk_memory_regions_end(data, pa, prot); | |
1963 | if (rc != 0) { | |
1964 | return rc; | |
9fa3e853 | 1965 | } |
9fa3e853 | 1966 | } |
5cd2c5b6 RH |
1967 | } |
1968 | } else { | |
1969 | void **pp = *lp; | |
7296abac | 1970 | for (i = 0; i < L2_SIZE; ++i) { |
b480d9b7 PB |
1971 | pa = base | ((abi_ulong)i << |
1972 | (TARGET_PAGE_BITS + L2_BITS * level)); | |
5cd2c5b6 RH |
1973 | rc = walk_memory_regions_1(data, pa, level - 1, pp + i); |
1974 | if (rc != 0) { | |
1975 | return rc; | |
1976 | } | |
1977 | } | |
1978 | } | |
1979 | ||
1980 | return 0; | |
1981 | } | |
1982 | ||
1983 | int walk_memory_regions(void *priv, walk_memory_regions_fn fn) | |
1984 | { | |
1985 | struct walk_memory_regions_data data; | |
8efe0ca8 | 1986 | uintptr_t i; |
5cd2c5b6 RH |
1987 | |
1988 | data.fn = fn; | |
1989 | data.priv = priv; | |
1990 | data.start = -1ul; | |
1991 | data.prot = 0; | |
1992 | ||
1993 | for (i = 0; i < V_L1_SIZE; i++) { | |
b480d9b7 | 1994 | int rc = walk_memory_regions_1(&data, (abi_ulong)i << V_L1_SHIFT, |
5cd2c5b6 RH |
1995 | V_L1_SHIFT / L2_BITS - 1, l1_map + i); |
1996 | if (rc != 0) { | |
1997 | return rc; | |
9fa3e853 | 1998 | } |
33417e70 | 1999 | } |
5cd2c5b6 RH |
2000 | |
2001 | return walk_memory_regions_end(&data, 0, 0); | |
edf8e2af MW |
2002 | } |
2003 | ||
b480d9b7 PB |
2004 | static int dump_region(void *priv, abi_ulong start, |
2005 | abi_ulong end, unsigned long prot) | |
edf8e2af MW |
2006 | { |
2007 | FILE *f = (FILE *)priv; | |
2008 | ||
b480d9b7 PB |
2009 | (void) fprintf(f, TARGET_ABI_FMT_lx"-"TARGET_ABI_FMT_lx |
2010 | " "TARGET_ABI_FMT_lx" %c%c%c\n", | |
edf8e2af MW |
2011 | start, end, end - start, |
2012 | ((prot & PAGE_READ) ? 'r' : '-'), | |
2013 | ((prot & PAGE_WRITE) ? 'w' : '-'), | |
2014 | ((prot & PAGE_EXEC) ? 'x' : '-')); | |
2015 | ||
2016 | return (0); | |
2017 | } | |
2018 | ||
2019 | /* dump memory mappings */ | |
2020 | void page_dump(FILE *f) | |
2021 | { | |
2022 | (void) fprintf(f, "%-8s %-8s %-8s %s\n", | |
2023 | "start", "end", "size", "prot"); | |
2024 | walk_memory_regions(f, dump_region); | |
33417e70 FB |
2025 | } |
2026 | ||
53a5960a | 2027 | int page_get_flags(target_ulong address) |
33417e70 | 2028 | { |
9fa3e853 FB |
2029 | PageDesc *p; |
2030 | ||
2031 | p = page_find(address >> TARGET_PAGE_BITS); | |
33417e70 | 2032 | if (!p) |
9fa3e853 FB |
2033 | return 0; |
2034 | return p->flags; | |
2035 | } | |
2036 | ||
376a7909 RH |
2037 | /* Modify the flags of a page and invalidate the code if necessary. |
2038 | The flag PAGE_WRITE_ORG is positioned automatically depending | |
2039 | on PAGE_WRITE. The mmap_lock should already be held. */ | |
53a5960a | 2040 | void page_set_flags(target_ulong start, target_ulong end, int flags) |
9fa3e853 | 2041 | { |
376a7909 RH |
2042 | target_ulong addr, len; |
2043 | ||
2044 | /* This function should never be called with addresses outside the | |
2045 | guest address space. If this assert fires, it probably indicates | |
2046 | a missing call to h2g_valid. */ | |
b480d9b7 PB |
2047 | #if TARGET_ABI_BITS > L1_MAP_ADDR_SPACE_BITS |
2048 | assert(end < ((abi_ulong)1 << L1_MAP_ADDR_SPACE_BITS)); | |
376a7909 RH |
2049 | #endif |
2050 | assert(start < end); | |
9fa3e853 FB |
2051 | |
2052 | start = start & TARGET_PAGE_MASK; | |
2053 | end = TARGET_PAGE_ALIGN(end); | |
376a7909 RH |
2054 | |
2055 | if (flags & PAGE_WRITE) { | |
9fa3e853 | 2056 | flags |= PAGE_WRITE_ORG; |
376a7909 RH |
2057 | } |
2058 | ||
2059 | for (addr = start, len = end - start; | |
2060 | len != 0; | |
2061 | len -= TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) { | |
2062 | PageDesc *p = page_find_alloc(addr >> TARGET_PAGE_BITS, 1); | |
2063 | ||
2064 | /* If the write protection bit is set, then we invalidate | |
2065 | the code inside. */ | |
5fafdf24 | 2066 | if (!(p->flags & PAGE_WRITE) && |
9fa3e853 FB |
2067 | (flags & PAGE_WRITE) && |
2068 | p->first_tb) { | |
d720b93d | 2069 | tb_invalidate_phys_page(addr, 0, NULL); |
9fa3e853 FB |
2070 | } |
2071 | p->flags = flags; | |
2072 | } | |
33417e70 FB |
2073 | } |
2074 | ||
3d97b40b TS |
2075 | int page_check_range(target_ulong start, target_ulong len, int flags) |
2076 | { | |
2077 | PageDesc *p; | |
2078 | target_ulong end; | |
2079 | target_ulong addr; | |
2080 | ||
376a7909 RH |
2081 | /* This function should never be called with addresses outside the |
2082 | guest address space. If this assert fires, it probably indicates | |
2083 | a missing call to h2g_valid. */ | |
338e9e6c BS |
2084 | #if TARGET_ABI_BITS > L1_MAP_ADDR_SPACE_BITS |
2085 | assert(start < ((abi_ulong)1 << L1_MAP_ADDR_SPACE_BITS)); | |
376a7909 RH |
2086 | #endif |
2087 | ||
3e0650a9 RH |
2088 | if (len == 0) { |
2089 | return 0; | |
2090 | } | |
376a7909 RH |
2091 | if (start + len - 1 < start) { |
2092 | /* We've wrapped around. */ | |
55f280c9 | 2093 | return -1; |
376a7909 | 2094 | } |
55f280c9 | 2095 | |
3d97b40b TS |
2096 | end = TARGET_PAGE_ALIGN(start+len); /* must do before we loose bits in the next step */ |
2097 | start = start & TARGET_PAGE_MASK; | |
2098 | ||
376a7909 RH |
2099 | for (addr = start, len = end - start; |
2100 | len != 0; | |
2101 | len -= TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) { | |
3d97b40b TS |
2102 | p = page_find(addr >> TARGET_PAGE_BITS); |
2103 | if( !p ) | |
2104 | return -1; | |
2105 | if( !(p->flags & PAGE_VALID) ) | |
2106 | return -1; | |
2107 | ||
dae3270c | 2108 | if ((flags & PAGE_READ) && !(p->flags & PAGE_READ)) |
3d97b40b | 2109 | return -1; |
dae3270c FB |
2110 | if (flags & PAGE_WRITE) { |
2111 | if (!(p->flags & PAGE_WRITE_ORG)) | |
2112 | return -1; | |
2113 | /* unprotect the page if it was put read-only because it | |
2114 | contains translated code */ | |
2115 | if (!(p->flags & PAGE_WRITE)) { | |
2116 | if (!page_unprotect(addr, 0, NULL)) | |
2117 | return -1; | |
2118 | } | |
2119 | return 0; | |
2120 | } | |
3d97b40b TS |
2121 | } |
2122 | return 0; | |
2123 | } | |
2124 | ||
9fa3e853 | 2125 | /* called from signal handler: invalidate the code and unprotect the |
ccbb4d44 | 2126 | page. Return TRUE if the fault was successfully handled. */ |
6375e09e | 2127 | int page_unprotect(target_ulong address, uintptr_t pc, void *puc) |
9fa3e853 | 2128 | { |
45d679d6 AJ |
2129 | unsigned int prot; |
2130 | PageDesc *p; | |
53a5960a | 2131 | target_ulong host_start, host_end, addr; |
9fa3e853 | 2132 | |
c8a706fe PB |
2133 | /* Technically this isn't safe inside a signal handler. However we |
2134 | know this only ever happens in a synchronous SEGV handler, so in | |
2135 | practice it seems to be ok. */ | |
2136 | mmap_lock(); | |
2137 | ||
45d679d6 AJ |
2138 | p = page_find(address >> TARGET_PAGE_BITS); |
2139 | if (!p) { | |
c8a706fe | 2140 | mmap_unlock(); |
9fa3e853 | 2141 | return 0; |
c8a706fe | 2142 | } |
45d679d6 | 2143 | |
9fa3e853 FB |
2144 | /* if the page was really writable, then we change its |
2145 | protection back to writable */ | |
45d679d6 AJ |
2146 | if ((p->flags & PAGE_WRITE_ORG) && !(p->flags & PAGE_WRITE)) { |
2147 | host_start = address & qemu_host_page_mask; | |
2148 | host_end = host_start + qemu_host_page_size; | |
2149 | ||
2150 | prot = 0; | |
2151 | for (addr = host_start ; addr < host_end ; addr += TARGET_PAGE_SIZE) { | |
2152 | p = page_find(addr >> TARGET_PAGE_BITS); | |
2153 | p->flags |= PAGE_WRITE; | |
2154 | prot |= p->flags; | |
2155 | ||
9fa3e853 FB |
2156 | /* and since the content will be modified, we must invalidate |
2157 | the corresponding translated code. */ | |
45d679d6 | 2158 | tb_invalidate_phys_page(addr, pc, puc); |
9fa3e853 | 2159 | #ifdef DEBUG_TB_CHECK |
45d679d6 | 2160 | tb_invalidate_check(addr); |
9fa3e853 | 2161 | #endif |
9fa3e853 | 2162 | } |
45d679d6 AJ |
2163 | mprotect((void *)g2h(host_start), qemu_host_page_size, |
2164 | prot & PAGE_BITS); | |
2165 | ||
2166 | mmap_unlock(); | |
2167 | return 1; | |
9fa3e853 | 2168 | } |
c8a706fe | 2169 | mmap_unlock(); |
9fa3e853 FB |
2170 | return 0; |
2171 | } | |
9fa3e853 FB |
2172 | #endif /* defined(CONFIG_USER_ONLY) */ |
2173 | ||
e2eef170 | 2174 | #if !defined(CONFIG_USER_ONLY) |
8da3ff18 | 2175 | |
c04b2b78 PB |
2176 | #define SUBPAGE_IDX(addr) ((addr) & ~TARGET_PAGE_MASK) |
2177 | typedef struct subpage_t { | |
70c68e44 | 2178 | MemoryRegion iomem; |
c04b2b78 | 2179 | target_phys_addr_t base; |
5312bd8b | 2180 | uint16_t sub_section[TARGET_PAGE_SIZE]; |
c04b2b78 PB |
2181 | } subpage_t; |
2182 | ||
c227f099 | 2183 | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
5312bd8b | 2184 | uint16_t section); |
0f0cb164 | 2185 | static subpage_t *subpage_init(target_phys_addr_t base); |
5312bd8b | 2186 | static void destroy_page_desc(uint16_t section_index) |
54688b1e | 2187 | { |
5312bd8b AK |
2188 | MemoryRegionSection *section = &phys_sections[section_index]; |
2189 | MemoryRegion *mr = section->mr; | |
54688b1e AK |
2190 | |
2191 | if (mr->subpage) { | |
2192 | subpage_t *subpage = container_of(mr, subpage_t, iomem); | |
2193 | memory_region_destroy(&subpage->iomem); | |
2194 | g_free(subpage); | |
2195 | } | |
2196 | } | |
2197 | ||
4346ae3e | 2198 | static void destroy_l2_mapping(PhysPageEntry *lp, unsigned level) |
54688b1e AK |
2199 | { |
2200 | unsigned i; | |
d6f2ea22 | 2201 | PhysPageEntry *p; |
54688b1e | 2202 | |
c19e8800 | 2203 | if (lp->ptr == PHYS_MAP_NODE_NIL) { |
54688b1e AK |
2204 | return; |
2205 | } | |
2206 | ||
c19e8800 | 2207 | p = phys_map_nodes[lp->ptr]; |
4346ae3e | 2208 | for (i = 0; i < L2_SIZE; ++i) { |
07f07b31 | 2209 | if (!p[i].is_leaf) { |
54688b1e | 2210 | destroy_l2_mapping(&p[i], level - 1); |
4346ae3e | 2211 | } else { |
c19e8800 | 2212 | destroy_page_desc(p[i].ptr); |
54688b1e | 2213 | } |
54688b1e | 2214 | } |
07f07b31 | 2215 | lp->is_leaf = 0; |
c19e8800 | 2216 | lp->ptr = PHYS_MAP_NODE_NIL; |
54688b1e AK |
2217 | } |
2218 | ||
2219 | static void destroy_all_mappings(void) | |
2220 | { | |
3eef53df | 2221 | destroy_l2_mapping(&phys_map, P_L2_LEVELS - 1); |
d6f2ea22 | 2222 | phys_map_nodes_reset(); |
54688b1e AK |
2223 | } |
2224 | ||
5312bd8b AK |
2225 | static uint16_t phys_section_add(MemoryRegionSection *section) |
2226 | { | |
2227 | if (phys_sections_nb == phys_sections_nb_alloc) { | |
2228 | phys_sections_nb_alloc = MAX(phys_sections_nb_alloc * 2, 16); | |
2229 | phys_sections = g_renew(MemoryRegionSection, phys_sections, | |
2230 | phys_sections_nb_alloc); | |
2231 | } | |
2232 | phys_sections[phys_sections_nb] = *section; | |
2233 | return phys_sections_nb++; | |
2234 | } | |
2235 | ||
2236 | static void phys_sections_clear(void) | |
2237 | { | |
2238 | phys_sections_nb = 0; | |
2239 | } | |
2240 | ||
0f0cb164 AK |
2241 | static void register_subpage(MemoryRegionSection *section) |
2242 | { | |
2243 | subpage_t *subpage; | |
2244 | target_phys_addr_t base = section->offset_within_address_space | |
2245 | & TARGET_PAGE_MASK; | |
f3705d53 | 2246 | MemoryRegionSection *existing = phys_page_find(base >> TARGET_PAGE_BITS); |
0f0cb164 AK |
2247 | MemoryRegionSection subsection = { |
2248 | .offset_within_address_space = base, | |
2249 | .size = TARGET_PAGE_SIZE, | |
2250 | }; | |
0f0cb164 AK |
2251 | target_phys_addr_t start, end; |
2252 | ||
f3705d53 | 2253 | assert(existing->mr->subpage || existing->mr == &io_mem_unassigned); |
0f0cb164 | 2254 | |
f3705d53 | 2255 | if (!(existing->mr->subpage)) { |
0f0cb164 AK |
2256 | subpage = subpage_init(base); |
2257 | subsection.mr = &subpage->iomem; | |
2999097b AK |
2258 | phys_page_set(base >> TARGET_PAGE_BITS, 1, |
2259 | phys_section_add(&subsection)); | |
0f0cb164 | 2260 | } else { |
f3705d53 | 2261 | subpage = container_of(existing->mr, subpage_t, iomem); |
0f0cb164 AK |
2262 | } |
2263 | start = section->offset_within_address_space & ~TARGET_PAGE_MASK; | |
adb2a9b5 | 2264 | end = start + section->size - 1; |
0f0cb164 AK |
2265 | subpage_register(subpage, start, end, phys_section_add(section)); |
2266 | } | |
2267 | ||
2268 | ||
2269 | static void register_multipage(MemoryRegionSection *section) | |
33417e70 | 2270 | { |
dd81124b AK |
2271 | target_phys_addr_t start_addr = section->offset_within_address_space; |
2272 | ram_addr_t size = section->size; | |
2999097b | 2273 | target_phys_addr_t addr; |
5312bd8b | 2274 | uint16_t section_index = phys_section_add(section); |
dd81124b | 2275 | |
3b8e6a2d | 2276 | assert(size); |
f6f3fbca | 2277 | |
3b8e6a2d | 2278 | addr = start_addr; |
2999097b AK |
2279 | phys_page_set(addr >> TARGET_PAGE_BITS, size >> TARGET_PAGE_BITS, |
2280 | section_index); | |
33417e70 FB |
2281 | } |
2282 | ||
0f0cb164 AK |
2283 | void cpu_register_physical_memory_log(MemoryRegionSection *section, |
2284 | bool readonly) | |
2285 | { | |
2286 | MemoryRegionSection now = *section, remain = *section; | |
2287 | ||
2288 | if ((now.offset_within_address_space & ~TARGET_PAGE_MASK) | |
2289 | || (now.size < TARGET_PAGE_SIZE)) { | |
2290 | now.size = MIN(TARGET_PAGE_ALIGN(now.offset_within_address_space) | |
2291 | - now.offset_within_address_space, | |
2292 | now.size); | |
2293 | register_subpage(&now); | |
2294 | remain.size -= now.size; | |
2295 | remain.offset_within_address_space += now.size; | |
2296 | remain.offset_within_region += now.size; | |
2297 | } | |
69b67646 TH |
2298 | while (remain.size >= TARGET_PAGE_SIZE) { |
2299 | now = remain; | |
2300 | if (remain.offset_within_region & ~TARGET_PAGE_MASK) { | |
2301 | now.size = TARGET_PAGE_SIZE; | |
2302 | register_subpage(&now); | |
2303 | } else { | |
2304 | now.size &= TARGET_PAGE_MASK; | |
2305 | register_multipage(&now); | |
2306 | } | |
0f0cb164 AK |
2307 | remain.size -= now.size; |
2308 | remain.offset_within_address_space += now.size; | |
2309 | remain.offset_within_region += now.size; | |
2310 | } | |
2311 | now = remain; | |
2312 | if (now.size) { | |
2313 | register_subpage(&now); | |
2314 | } | |
2315 | } | |
2316 | ||
2317 | ||
c227f099 | 2318 | void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size) |
f65ed4c1 AL |
2319 | { |
2320 | if (kvm_enabled()) | |
2321 | kvm_coalesce_mmio_region(addr, size); | |
2322 | } | |
2323 | ||
c227f099 | 2324 | void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size) |
f65ed4c1 AL |
2325 | { |
2326 | if (kvm_enabled()) | |
2327 | kvm_uncoalesce_mmio_region(addr, size); | |
2328 | } | |
2329 | ||
62a2744c SY |
2330 | void qemu_flush_coalesced_mmio_buffer(void) |
2331 | { | |
2332 | if (kvm_enabled()) | |
2333 | kvm_flush_coalesced_mmio_buffer(); | |
2334 | } | |
2335 | ||
c902760f MT |
2336 | #if defined(__linux__) && !defined(TARGET_S390X) |
2337 | ||
2338 | #include <sys/vfs.h> | |
2339 | ||
2340 | #define HUGETLBFS_MAGIC 0x958458f6 | |
2341 | ||
2342 | static long gethugepagesize(const char *path) | |
2343 | { | |
2344 | struct statfs fs; | |
2345 | int ret; | |
2346 | ||
2347 | do { | |
9742bf26 | 2348 | ret = statfs(path, &fs); |
c902760f MT |
2349 | } while (ret != 0 && errno == EINTR); |
2350 | ||
2351 | if (ret != 0) { | |
9742bf26 YT |
2352 | perror(path); |
2353 | return 0; | |
c902760f MT |
2354 | } |
2355 | ||
2356 | if (fs.f_type != HUGETLBFS_MAGIC) | |
9742bf26 | 2357 | fprintf(stderr, "Warning: path not on HugeTLBFS: %s\n", path); |
c902760f MT |
2358 | |
2359 | return fs.f_bsize; | |
2360 | } | |
2361 | ||
04b16653 AW |
2362 | static void *file_ram_alloc(RAMBlock *block, |
2363 | ram_addr_t memory, | |
2364 | const char *path) | |
c902760f MT |
2365 | { |
2366 | char *filename; | |
2367 | void *area; | |
2368 | int fd; | |
2369 | #ifdef MAP_POPULATE | |
2370 | int flags; | |
2371 | #endif | |
2372 | unsigned long hpagesize; | |
2373 | ||
2374 | hpagesize = gethugepagesize(path); | |
2375 | if (!hpagesize) { | |
9742bf26 | 2376 | return NULL; |
c902760f MT |
2377 | } |
2378 | ||
2379 | if (memory < hpagesize) { | |
2380 | return NULL; | |
2381 | } | |
2382 | ||
2383 | if (kvm_enabled() && !kvm_has_sync_mmu()) { | |
2384 | fprintf(stderr, "host lacks kvm mmu notifiers, -mem-path unsupported\n"); | |
2385 | return NULL; | |
2386 | } | |
2387 | ||
2388 | if (asprintf(&filename, "%s/qemu_back_mem.XXXXXX", path) == -1) { | |
9742bf26 | 2389 | return NULL; |
c902760f MT |
2390 | } |
2391 | ||
2392 | fd = mkstemp(filename); | |
2393 | if (fd < 0) { | |
9742bf26 YT |
2394 | perror("unable to create backing store for hugepages"); |
2395 | free(filename); | |
2396 | return NULL; | |
c902760f MT |
2397 | } |
2398 | unlink(filename); | |
2399 | free(filename); | |
2400 | ||
2401 | memory = (memory+hpagesize-1) & ~(hpagesize-1); | |
2402 | ||
2403 | /* | |
2404 | * ftruncate is not supported by hugetlbfs in older | |
2405 | * hosts, so don't bother bailing out on errors. | |
2406 | * If anything goes wrong with it under other filesystems, | |
2407 | * mmap will fail. | |
2408 | */ | |
2409 | if (ftruncate(fd, memory)) | |
9742bf26 | 2410 | perror("ftruncate"); |
c902760f MT |
2411 | |
2412 | #ifdef MAP_POPULATE | |
2413 | /* NB: MAP_POPULATE won't exhaustively alloc all phys pages in the case | |
2414 | * MAP_PRIVATE is requested. For mem_prealloc we mmap as MAP_SHARED | |
2415 | * to sidestep this quirk. | |
2416 | */ | |
2417 | flags = mem_prealloc ? MAP_POPULATE | MAP_SHARED : MAP_PRIVATE; | |
2418 | area = mmap(0, memory, PROT_READ | PROT_WRITE, flags, fd, 0); | |
2419 | #else | |
2420 | area = mmap(0, memory, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); | |
2421 | #endif | |
2422 | if (area == MAP_FAILED) { | |
9742bf26 YT |
2423 | perror("file_ram_alloc: can't mmap RAM pages"); |
2424 | close(fd); | |
2425 | return (NULL); | |
c902760f | 2426 | } |
04b16653 | 2427 | block->fd = fd; |
c902760f MT |
2428 | return area; |
2429 | } | |
2430 | #endif | |
2431 | ||
d17b5288 | 2432 | static ram_addr_t find_ram_offset(ram_addr_t size) |
04b16653 AW |
2433 | { |
2434 | RAMBlock *block, *next_block; | |
3e837b2c | 2435 | ram_addr_t offset = RAM_ADDR_MAX, mingap = RAM_ADDR_MAX; |
04b16653 AW |
2436 | |
2437 | if (QLIST_EMPTY(&ram_list.blocks)) | |
2438 | return 0; | |
2439 | ||
2440 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
f15fbc4b | 2441 | ram_addr_t end, next = RAM_ADDR_MAX; |
04b16653 AW |
2442 | |
2443 | end = block->offset + block->length; | |
2444 | ||
2445 | QLIST_FOREACH(next_block, &ram_list.blocks, next) { | |
2446 | if (next_block->offset >= end) { | |
2447 | next = MIN(next, next_block->offset); | |
2448 | } | |
2449 | } | |
2450 | if (next - end >= size && next - end < mingap) { | |
3e837b2c | 2451 | offset = end; |
04b16653 AW |
2452 | mingap = next - end; |
2453 | } | |
2454 | } | |
3e837b2c AW |
2455 | |
2456 | if (offset == RAM_ADDR_MAX) { | |
2457 | fprintf(stderr, "Failed to find gap of requested size: %" PRIu64 "\n", | |
2458 | (uint64_t)size); | |
2459 | abort(); | |
2460 | } | |
2461 | ||
04b16653 AW |
2462 | return offset; |
2463 | } | |
2464 | ||
2465 | static ram_addr_t last_ram_offset(void) | |
d17b5288 AW |
2466 | { |
2467 | RAMBlock *block; | |
2468 | ram_addr_t last = 0; | |
2469 | ||
2470 | QLIST_FOREACH(block, &ram_list.blocks, next) | |
2471 | last = MAX(last, block->offset + block->length); | |
2472 | ||
2473 | return last; | |
2474 | } | |
2475 | ||
ddb97f1d JB |
2476 | static void qemu_ram_setup_dump(void *addr, ram_addr_t size) |
2477 | { | |
2478 | int ret; | |
2479 | QemuOpts *machine_opts; | |
2480 | ||
2481 | /* Use MADV_DONTDUMP, if user doesn't want the guest memory in the core */ | |
2482 | machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0); | |
2483 | if (machine_opts && | |
2484 | !qemu_opt_get_bool(machine_opts, "dump-guest-core", true)) { | |
2485 | ret = qemu_madvise(addr, size, QEMU_MADV_DONTDUMP); | |
2486 | if (ret) { | |
2487 | perror("qemu_madvise"); | |
2488 | fprintf(stderr, "madvise doesn't support MADV_DONTDUMP, " | |
2489 | "but dump_guest_core=off specified\n"); | |
2490 | } | |
2491 | } | |
2492 | } | |
2493 | ||
c5705a77 | 2494 | void qemu_ram_set_idstr(ram_addr_t addr, const char *name, DeviceState *dev) |
84b89d78 CM |
2495 | { |
2496 | RAMBlock *new_block, *block; | |
2497 | ||
c5705a77 AK |
2498 | new_block = NULL; |
2499 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
2500 | if (block->offset == addr) { | |
2501 | new_block = block; | |
2502 | break; | |
2503 | } | |
2504 | } | |
2505 | assert(new_block); | |
2506 | assert(!new_block->idstr[0]); | |
84b89d78 | 2507 | |
09e5ab63 AL |
2508 | if (dev) { |
2509 | char *id = qdev_get_dev_path(dev); | |
84b89d78 CM |
2510 | if (id) { |
2511 | snprintf(new_block->idstr, sizeof(new_block->idstr), "%s/", id); | |
7267c094 | 2512 | g_free(id); |
84b89d78 CM |
2513 | } |
2514 | } | |
2515 | pstrcat(new_block->idstr, sizeof(new_block->idstr), name); | |
2516 | ||
2517 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
c5705a77 | 2518 | if (block != new_block && !strcmp(block->idstr, new_block->idstr)) { |
84b89d78 CM |
2519 | fprintf(stderr, "RAMBlock \"%s\" already registered, abort!\n", |
2520 | new_block->idstr); | |
2521 | abort(); | |
2522 | } | |
2523 | } | |
c5705a77 AK |
2524 | } |
2525 | ||
2526 | ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host, | |
2527 | MemoryRegion *mr) | |
2528 | { | |
2529 | RAMBlock *new_block; | |
2530 | ||
2531 | size = TARGET_PAGE_ALIGN(size); | |
2532 | new_block = g_malloc0(sizeof(*new_block)); | |
84b89d78 | 2533 | |
7c637366 | 2534 | new_block->mr = mr; |
432d268c | 2535 | new_block->offset = find_ram_offset(size); |
6977dfe6 YT |
2536 | if (host) { |
2537 | new_block->host = host; | |
cd19cfa2 | 2538 | new_block->flags |= RAM_PREALLOC_MASK; |
6977dfe6 YT |
2539 | } else { |
2540 | if (mem_path) { | |
c902760f | 2541 | #if defined (__linux__) && !defined(TARGET_S390X) |
6977dfe6 YT |
2542 | new_block->host = file_ram_alloc(new_block, size, mem_path); |
2543 | if (!new_block->host) { | |
2544 | new_block->host = qemu_vmalloc(size); | |
e78815a5 | 2545 | qemu_madvise(new_block->host, size, QEMU_MADV_MERGEABLE); |
6977dfe6 | 2546 | } |
c902760f | 2547 | #else |
6977dfe6 YT |
2548 | fprintf(stderr, "-mem-path option unsupported\n"); |
2549 | exit(1); | |
c902760f | 2550 | #endif |
6977dfe6 | 2551 | } else { |
868bb33f | 2552 | if (xen_enabled()) { |
fce537d4 | 2553 | xen_ram_alloc(new_block->offset, size, mr); |
fdec9918 CB |
2554 | } else if (kvm_enabled()) { |
2555 | /* some s390/kvm configurations have special constraints */ | |
2556 | new_block->host = kvm_vmalloc(size); | |
432d268c JN |
2557 | } else { |
2558 | new_block->host = qemu_vmalloc(size); | |
2559 | } | |
e78815a5 | 2560 | qemu_madvise(new_block->host, size, QEMU_MADV_MERGEABLE); |
6977dfe6 | 2561 | } |
c902760f | 2562 | } |
94a6b54f PB |
2563 | new_block->length = size; |
2564 | ||
f471a17e | 2565 | QLIST_INSERT_HEAD(&ram_list.blocks, new_block, next); |
94a6b54f | 2566 | |
7267c094 | 2567 | ram_list.phys_dirty = g_realloc(ram_list.phys_dirty, |
04b16653 | 2568 | last_ram_offset() >> TARGET_PAGE_BITS); |
5fda043f IM |
2569 | memset(ram_list.phys_dirty + (new_block->offset >> TARGET_PAGE_BITS), |
2570 | 0, size >> TARGET_PAGE_BITS); | |
1720aeee | 2571 | cpu_physical_memory_set_dirty_range(new_block->offset, size, 0xff); |
94a6b54f | 2572 | |
ddb97f1d JB |
2573 | qemu_ram_setup_dump(new_block->host, size); |
2574 | ||
6f0437e8 JK |
2575 | if (kvm_enabled()) |
2576 | kvm_setup_guest_memory(new_block->host, size); | |
2577 | ||
94a6b54f PB |
2578 | return new_block->offset; |
2579 | } | |
e9a1ab19 | 2580 | |
c5705a77 | 2581 | ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr) |
6977dfe6 | 2582 | { |
c5705a77 | 2583 | return qemu_ram_alloc_from_ptr(size, NULL, mr); |
6977dfe6 YT |
2584 | } |
2585 | ||
1f2e98b6 AW |
2586 | void qemu_ram_free_from_ptr(ram_addr_t addr) |
2587 | { | |
2588 | RAMBlock *block; | |
2589 | ||
2590 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
2591 | if (addr == block->offset) { | |
2592 | QLIST_REMOVE(block, next); | |
7267c094 | 2593 | g_free(block); |
1f2e98b6 AW |
2594 | return; |
2595 | } | |
2596 | } | |
2597 | } | |
2598 | ||
c227f099 | 2599 | void qemu_ram_free(ram_addr_t addr) |
e9a1ab19 | 2600 | { |
04b16653 AW |
2601 | RAMBlock *block; |
2602 | ||
2603 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
2604 | if (addr == block->offset) { | |
2605 | QLIST_REMOVE(block, next); | |
cd19cfa2 HY |
2606 | if (block->flags & RAM_PREALLOC_MASK) { |
2607 | ; | |
2608 | } else if (mem_path) { | |
04b16653 AW |
2609 | #if defined (__linux__) && !defined(TARGET_S390X) |
2610 | if (block->fd) { | |
2611 | munmap(block->host, block->length); | |
2612 | close(block->fd); | |
2613 | } else { | |
2614 | qemu_vfree(block->host); | |
2615 | } | |
fd28aa13 JK |
2616 | #else |
2617 | abort(); | |
04b16653 AW |
2618 | #endif |
2619 | } else { | |
2620 | #if defined(TARGET_S390X) && defined(CONFIG_KVM) | |
2621 | munmap(block->host, block->length); | |
2622 | #else | |
868bb33f | 2623 | if (xen_enabled()) { |
e41d7c69 | 2624 | xen_invalidate_map_cache_entry(block->host); |
432d268c JN |
2625 | } else { |
2626 | qemu_vfree(block->host); | |
2627 | } | |
04b16653 AW |
2628 | #endif |
2629 | } | |
7267c094 | 2630 | g_free(block); |
04b16653 AW |
2631 | return; |
2632 | } | |
2633 | } | |
2634 | ||
e9a1ab19 FB |
2635 | } |
2636 | ||
cd19cfa2 HY |
2637 | #ifndef _WIN32 |
2638 | void qemu_ram_remap(ram_addr_t addr, ram_addr_t length) | |
2639 | { | |
2640 | RAMBlock *block; | |
2641 | ram_addr_t offset; | |
2642 | int flags; | |
2643 | void *area, *vaddr; | |
2644 | ||
2645 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
2646 | offset = addr - block->offset; | |
2647 | if (offset < block->length) { | |
2648 | vaddr = block->host + offset; | |
2649 | if (block->flags & RAM_PREALLOC_MASK) { | |
2650 | ; | |
2651 | } else { | |
2652 | flags = MAP_FIXED; | |
2653 | munmap(vaddr, length); | |
2654 | if (mem_path) { | |
2655 | #if defined(__linux__) && !defined(TARGET_S390X) | |
2656 | if (block->fd) { | |
2657 | #ifdef MAP_POPULATE | |
2658 | flags |= mem_prealloc ? MAP_POPULATE | MAP_SHARED : | |
2659 | MAP_PRIVATE; | |
2660 | #else | |
2661 | flags |= MAP_PRIVATE; | |
2662 | #endif | |
2663 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, | |
2664 | flags, block->fd, offset); | |
2665 | } else { | |
2666 | flags |= MAP_PRIVATE | MAP_ANONYMOUS; | |
2667 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, | |
2668 | flags, -1, 0); | |
2669 | } | |
fd28aa13 JK |
2670 | #else |
2671 | abort(); | |
cd19cfa2 HY |
2672 | #endif |
2673 | } else { | |
2674 | #if defined(TARGET_S390X) && defined(CONFIG_KVM) | |
2675 | flags |= MAP_SHARED | MAP_ANONYMOUS; | |
2676 | area = mmap(vaddr, length, PROT_EXEC|PROT_READ|PROT_WRITE, | |
2677 | flags, -1, 0); | |
2678 | #else | |
2679 | flags |= MAP_PRIVATE | MAP_ANONYMOUS; | |
2680 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, | |
2681 | flags, -1, 0); | |
2682 | #endif | |
2683 | } | |
2684 | if (area != vaddr) { | |
f15fbc4b AP |
2685 | fprintf(stderr, "Could not remap addr: " |
2686 | RAM_ADDR_FMT "@" RAM_ADDR_FMT "\n", | |
cd19cfa2 HY |
2687 | length, addr); |
2688 | exit(1); | |
2689 | } | |
2690 | qemu_madvise(vaddr, length, QEMU_MADV_MERGEABLE); | |
ddb97f1d | 2691 | qemu_ram_setup_dump(vaddr, length); |
cd19cfa2 HY |
2692 | } |
2693 | return; | |
2694 | } | |
2695 | } | |
2696 | } | |
2697 | #endif /* !_WIN32 */ | |
2698 | ||
dc828ca1 | 2699 | /* Return a host pointer to ram allocated with qemu_ram_alloc. |
5579c7f3 PB |
2700 | With the exception of the softmmu code in this file, this should |
2701 | only be used for local memory (e.g. video ram) that the device owns, | |
2702 | and knows it isn't going to access beyond the end of the block. | |
2703 | ||
2704 | It should not be used for general purpose DMA. | |
2705 | Use cpu_physical_memory_map/cpu_physical_memory_rw instead. | |
2706 | */ | |
c227f099 | 2707 | void *qemu_get_ram_ptr(ram_addr_t addr) |
dc828ca1 | 2708 | { |
94a6b54f PB |
2709 | RAMBlock *block; |
2710 | ||
f471a17e AW |
2711 | QLIST_FOREACH(block, &ram_list.blocks, next) { |
2712 | if (addr - block->offset < block->length) { | |
7d82af38 VP |
2713 | /* Move this entry to to start of the list. */ |
2714 | if (block != QLIST_FIRST(&ram_list.blocks)) { | |
2715 | QLIST_REMOVE(block, next); | |
2716 | QLIST_INSERT_HEAD(&ram_list.blocks, block, next); | |
2717 | } | |
868bb33f | 2718 | if (xen_enabled()) { |
432d268c JN |
2719 | /* We need to check if the requested address is in the RAM |
2720 | * because we don't want to map the entire memory in QEMU. | |
712c2b41 | 2721 | * In that case just map until the end of the page. |
432d268c JN |
2722 | */ |
2723 | if (block->offset == 0) { | |
e41d7c69 | 2724 | return xen_map_cache(addr, 0, 0); |
432d268c | 2725 | } else if (block->host == NULL) { |
e41d7c69 JK |
2726 | block->host = |
2727 | xen_map_cache(block->offset, block->length, 1); | |
432d268c JN |
2728 | } |
2729 | } | |
f471a17e AW |
2730 | return block->host + (addr - block->offset); |
2731 | } | |
94a6b54f | 2732 | } |
f471a17e AW |
2733 | |
2734 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); | |
2735 | abort(); | |
2736 | ||
2737 | return NULL; | |
dc828ca1 PB |
2738 | } |
2739 | ||
b2e0a138 MT |
2740 | /* Return a host pointer to ram allocated with qemu_ram_alloc. |
2741 | * Same as qemu_get_ram_ptr but avoid reordering ramblocks. | |
2742 | */ | |
2743 | void *qemu_safe_ram_ptr(ram_addr_t addr) | |
2744 | { | |
2745 | RAMBlock *block; | |
2746 | ||
2747 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
2748 | if (addr - block->offset < block->length) { | |
868bb33f | 2749 | if (xen_enabled()) { |
432d268c JN |
2750 | /* We need to check if the requested address is in the RAM |
2751 | * because we don't want to map the entire memory in QEMU. | |
712c2b41 | 2752 | * In that case just map until the end of the page. |
432d268c JN |
2753 | */ |
2754 | if (block->offset == 0) { | |
e41d7c69 | 2755 | return xen_map_cache(addr, 0, 0); |
432d268c | 2756 | } else if (block->host == NULL) { |
e41d7c69 JK |
2757 | block->host = |
2758 | xen_map_cache(block->offset, block->length, 1); | |
432d268c JN |
2759 | } |
2760 | } | |
b2e0a138 MT |
2761 | return block->host + (addr - block->offset); |
2762 | } | |
2763 | } | |
2764 | ||
2765 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); | |
2766 | abort(); | |
2767 | ||
2768 | return NULL; | |
2769 | } | |
2770 | ||
38bee5dc SS |
2771 | /* Return a host pointer to guest's ram. Similar to qemu_get_ram_ptr |
2772 | * but takes a size argument */ | |
8ab934f9 | 2773 | void *qemu_ram_ptr_length(ram_addr_t addr, ram_addr_t *size) |
38bee5dc | 2774 | { |
8ab934f9 SS |
2775 | if (*size == 0) { |
2776 | return NULL; | |
2777 | } | |
868bb33f | 2778 | if (xen_enabled()) { |
e41d7c69 | 2779 | return xen_map_cache(addr, *size, 1); |
868bb33f | 2780 | } else { |
38bee5dc SS |
2781 | RAMBlock *block; |
2782 | ||
2783 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
2784 | if (addr - block->offset < block->length) { | |
2785 | if (addr - block->offset + *size > block->length) | |
2786 | *size = block->length - addr + block->offset; | |
2787 | return block->host + (addr - block->offset); | |
2788 | } | |
2789 | } | |
2790 | ||
2791 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); | |
2792 | abort(); | |
38bee5dc SS |
2793 | } |
2794 | } | |
2795 | ||
050a0ddf AP |
2796 | void qemu_put_ram_ptr(void *addr) |
2797 | { | |
2798 | trace_qemu_put_ram_ptr(addr); | |
050a0ddf AP |
2799 | } |
2800 | ||
e890261f | 2801 | int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr) |
5579c7f3 | 2802 | { |
94a6b54f PB |
2803 | RAMBlock *block; |
2804 | uint8_t *host = ptr; | |
2805 | ||
868bb33f | 2806 | if (xen_enabled()) { |
e41d7c69 | 2807 | *ram_addr = xen_ram_addr_from_mapcache(ptr); |
712c2b41 SS |
2808 | return 0; |
2809 | } | |
2810 | ||
f471a17e | 2811 | QLIST_FOREACH(block, &ram_list.blocks, next) { |
432d268c JN |
2812 | /* This case append when the block is not mapped. */ |
2813 | if (block->host == NULL) { | |
2814 | continue; | |
2815 | } | |
f471a17e | 2816 | if (host - block->host < block->length) { |
e890261f MT |
2817 | *ram_addr = block->offset + (host - block->host); |
2818 | return 0; | |
f471a17e | 2819 | } |
94a6b54f | 2820 | } |
432d268c | 2821 | |
e890261f MT |
2822 | return -1; |
2823 | } | |
f471a17e | 2824 | |
e890261f MT |
2825 | /* Some of the softmmu routines need to translate from a host pointer |
2826 | (typically a TLB entry) back to a ram offset. */ | |
2827 | ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr) | |
2828 | { | |
2829 | ram_addr_t ram_addr; | |
f471a17e | 2830 | |
e890261f MT |
2831 | if (qemu_ram_addr_from_host(ptr, &ram_addr)) { |
2832 | fprintf(stderr, "Bad ram pointer %p\n", ptr); | |
2833 | abort(); | |
2834 | } | |
2835 | return ram_addr; | |
5579c7f3 PB |
2836 | } |
2837 | ||
0e0df1e2 AK |
2838 | static uint64_t unassigned_mem_read(void *opaque, target_phys_addr_t addr, |
2839 | unsigned size) | |
e18231a3 BS |
2840 | { |
2841 | #ifdef DEBUG_UNASSIGNED | |
2842 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); | |
2843 | #endif | |
5b450407 | 2844 | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
0e0df1e2 | 2845 | cpu_unassigned_access(cpu_single_env, addr, 0, 0, 0, size); |
e18231a3 BS |
2846 | #endif |
2847 | return 0; | |
2848 | } | |
2849 | ||
0e0df1e2 AK |
2850 | static void unassigned_mem_write(void *opaque, target_phys_addr_t addr, |
2851 | uint64_t val, unsigned size) | |
e18231a3 BS |
2852 | { |
2853 | #ifdef DEBUG_UNASSIGNED | |
0e0df1e2 | 2854 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%"PRIx64"\n", addr, val); |
e18231a3 | 2855 | #endif |
5b450407 | 2856 | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
0e0df1e2 | 2857 | cpu_unassigned_access(cpu_single_env, addr, 1, 0, 0, size); |
67d3b957 | 2858 | #endif |
33417e70 FB |
2859 | } |
2860 | ||
0e0df1e2 AK |
2861 | static const MemoryRegionOps unassigned_mem_ops = { |
2862 | .read = unassigned_mem_read, | |
2863 | .write = unassigned_mem_write, | |
2864 | .endianness = DEVICE_NATIVE_ENDIAN, | |
2865 | }; | |
e18231a3 | 2866 | |
0e0df1e2 AK |
2867 | static uint64_t error_mem_read(void *opaque, target_phys_addr_t addr, |
2868 | unsigned size) | |
e18231a3 | 2869 | { |
0e0df1e2 | 2870 | abort(); |
e18231a3 BS |
2871 | } |
2872 | ||
0e0df1e2 AK |
2873 | static void error_mem_write(void *opaque, target_phys_addr_t addr, |
2874 | uint64_t value, unsigned size) | |
e18231a3 | 2875 | { |
0e0df1e2 | 2876 | abort(); |
33417e70 FB |
2877 | } |
2878 | ||
0e0df1e2 AK |
2879 | static const MemoryRegionOps error_mem_ops = { |
2880 | .read = error_mem_read, | |
2881 | .write = error_mem_write, | |
2882 | .endianness = DEVICE_NATIVE_ENDIAN, | |
33417e70 FB |
2883 | }; |
2884 | ||
0e0df1e2 AK |
2885 | static const MemoryRegionOps rom_mem_ops = { |
2886 | .read = error_mem_read, | |
2887 | .write = unassigned_mem_write, | |
2888 | .endianness = DEVICE_NATIVE_ENDIAN, | |
33417e70 FB |
2889 | }; |
2890 | ||
0e0df1e2 AK |
2891 | static void notdirty_mem_write(void *opaque, target_phys_addr_t ram_addr, |
2892 | uint64_t val, unsigned size) | |
9fa3e853 | 2893 | { |
3a7d929e | 2894 | int dirty_flags; |
f7c11b53 | 2895 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3a7d929e | 2896 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
9fa3e853 | 2897 | #if !defined(CONFIG_USER_ONLY) |
0e0df1e2 | 2898 | tb_invalidate_phys_page_fast(ram_addr, size); |
f7c11b53 | 2899 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
9fa3e853 | 2900 | #endif |
3a7d929e | 2901 | } |
0e0df1e2 AK |
2902 | switch (size) { |
2903 | case 1: | |
2904 | stb_p(qemu_get_ram_ptr(ram_addr), val); | |
2905 | break; | |
2906 | case 2: | |
2907 | stw_p(qemu_get_ram_ptr(ram_addr), val); | |
2908 | break; | |
2909 | case 4: | |
2910 | stl_p(qemu_get_ram_ptr(ram_addr), val); | |
2911 | break; | |
2912 | default: | |
2913 | abort(); | |
3a7d929e | 2914 | } |
f23db169 | 2915 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
f7c11b53 | 2916 | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
f23db169 FB |
2917 | /* we remove the notdirty callback only if the code has been |
2918 | flushed */ | |
2919 | if (dirty_flags == 0xff) | |
2e70f6ef | 2920 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
9fa3e853 FB |
2921 | } |
2922 | ||
0e0df1e2 AK |
2923 | static const MemoryRegionOps notdirty_mem_ops = { |
2924 | .read = error_mem_read, | |
2925 | .write = notdirty_mem_write, | |
2926 | .endianness = DEVICE_NATIVE_ENDIAN, | |
1ccde1cb FB |
2927 | }; |
2928 | ||
0f459d16 | 2929 | /* Generate a debug exception if a watchpoint has been hit. */ |
b4051334 | 2930 | static void check_watchpoint(int offset, int len_mask, int flags) |
0f459d16 | 2931 | { |
9349b4f9 | 2932 | CPUArchState *env = cpu_single_env; |
06d55cc1 AL |
2933 | target_ulong pc, cs_base; |
2934 | TranslationBlock *tb; | |
0f459d16 | 2935 | target_ulong vaddr; |
a1d1bb31 | 2936 | CPUWatchpoint *wp; |
06d55cc1 | 2937 | int cpu_flags; |
0f459d16 | 2938 | |
06d55cc1 AL |
2939 | if (env->watchpoint_hit) { |
2940 | /* We re-entered the check after replacing the TB. Now raise | |
2941 | * the debug interrupt so that is will trigger after the | |
2942 | * current instruction. */ | |
2943 | cpu_interrupt(env, CPU_INTERRUPT_DEBUG); | |
2944 | return; | |
2945 | } | |
2e70f6ef | 2946 | vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset; |
72cf2d4f | 2947 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
b4051334 AL |
2948 | if ((vaddr == (wp->vaddr & len_mask) || |
2949 | (vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) { | |
6e140f28 AL |
2950 | wp->flags |= BP_WATCHPOINT_HIT; |
2951 | if (!env->watchpoint_hit) { | |
2952 | env->watchpoint_hit = wp; | |
2953 | tb = tb_find_pc(env->mem_io_pc); | |
2954 | if (!tb) { | |
2955 | cpu_abort(env, "check_watchpoint: could not find TB for " | |
2956 | "pc=%p", (void *)env->mem_io_pc); | |
2957 | } | |
618ba8e6 | 2958 | cpu_restore_state(tb, env, env->mem_io_pc); |
6e140f28 AL |
2959 | tb_phys_invalidate(tb, -1); |
2960 | if (wp->flags & BP_STOP_BEFORE_ACCESS) { | |
2961 | env->exception_index = EXCP_DEBUG; | |
488d6577 | 2962 | cpu_loop_exit(env); |
6e140f28 AL |
2963 | } else { |
2964 | cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags); | |
2965 | tb_gen_code(env, pc, cs_base, cpu_flags, 1); | |
488d6577 | 2966 | cpu_resume_from_signal(env, NULL); |
6e140f28 | 2967 | } |
06d55cc1 | 2968 | } |
6e140f28 AL |
2969 | } else { |
2970 | wp->flags &= ~BP_WATCHPOINT_HIT; | |
0f459d16 PB |
2971 | } |
2972 | } | |
2973 | } | |
2974 | ||
6658ffb8 PB |
2975 | /* Watchpoint access routines. Watchpoints are inserted using TLB tricks, |
2976 | so these check for a hit then pass through to the normal out-of-line | |
2977 | phys routines. */ | |
1ec9b909 AK |
2978 | static uint64_t watch_mem_read(void *opaque, target_phys_addr_t addr, |
2979 | unsigned size) | |
6658ffb8 | 2980 | { |
1ec9b909 AK |
2981 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~(size - 1), BP_MEM_READ); |
2982 | switch (size) { | |
2983 | case 1: return ldub_phys(addr); | |
2984 | case 2: return lduw_phys(addr); | |
2985 | case 4: return ldl_phys(addr); | |
2986 | default: abort(); | |
2987 | } | |
6658ffb8 PB |
2988 | } |
2989 | ||
1ec9b909 AK |
2990 | static void watch_mem_write(void *opaque, target_phys_addr_t addr, |
2991 | uint64_t val, unsigned size) | |
6658ffb8 | 2992 | { |
1ec9b909 AK |
2993 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~(size - 1), BP_MEM_WRITE); |
2994 | switch (size) { | |
67364150 MF |
2995 | case 1: |
2996 | stb_phys(addr, val); | |
2997 | break; | |
2998 | case 2: | |
2999 | stw_phys(addr, val); | |
3000 | break; | |
3001 | case 4: | |
3002 | stl_phys(addr, val); | |
3003 | break; | |
1ec9b909 AK |
3004 | default: abort(); |
3005 | } | |
6658ffb8 PB |
3006 | } |
3007 | ||
1ec9b909 AK |
3008 | static const MemoryRegionOps watch_mem_ops = { |
3009 | .read = watch_mem_read, | |
3010 | .write = watch_mem_write, | |
3011 | .endianness = DEVICE_NATIVE_ENDIAN, | |
6658ffb8 | 3012 | }; |
6658ffb8 | 3013 | |
70c68e44 AK |
3014 | static uint64_t subpage_read(void *opaque, target_phys_addr_t addr, |
3015 | unsigned len) | |
db7b5426 | 3016 | { |
70c68e44 | 3017 | subpage_t *mmio = opaque; |
f6405247 | 3018 | unsigned int idx = SUBPAGE_IDX(addr); |
5312bd8b | 3019 | MemoryRegionSection *section; |
db7b5426 BS |
3020 | #if defined(DEBUG_SUBPAGE) |
3021 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d\n", __func__, | |
3022 | mmio, len, addr, idx); | |
3023 | #endif | |
db7b5426 | 3024 | |
5312bd8b AK |
3025 | section = &phys_sections[mmio->sub_section[idx]]; |
3026 | addr += mmio->base; | |
3027 | addr -= section->offset_within_address_space; | |
3028 | addr += section->offset_within_region; | |
37ec01d4 | 3029 | return io_mem_read(section->mr, addr, len); |
db7b5426 BS |
3030 | } |
3031 | ||
70c68e44 AK |
3032 | static void subpage_write(void *opaque, target_phys_addr_t addr, |
3033 | uint64_t value, unsigned len) | |
db7b5426 | 3034 | { |
70c68e44 | 3035 | subpage_t *mmio = opaque; |
f6405247 | 3036 | unsigned int idx = SUBPAGE_IDX(addr); |
5312bd8b | 3037 | MemoryRegionSection *section; |
db7b5426 | 3038 | #if defined(DEBUG_SUBPAGE) |
70c68e44 AK |
3039 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx |
3040 | " idx %d value %"PRIx64"\n", | |
f6405247 | 3041 | __func__, mmio, len, addr, idx, value); |
db7b5426 | 3042 | #endif |
f6405247 | 3043 | |
5312bd8b AK |
3044 | section = &phys_sections[mmio->sub_section[idx]]; |
3045 | addr += mmio->base; | |
3046 | addr -= section->offset_within_address_space; | |
3047 | addr += section->offset_within_region; | |
37ec01d4 | 3048 | io_mem_write(section->mr, addr, value, len); |
db7b5426 BS |
3049 | } |
3050 | ||
70c68e44 AK |
3051 | static const MemoryRegionOps subpage_ops = { |
3052 | .read = subpage_read, | |
3053 | .write = subpage_write, | |
3054 | .endianness = DEVICE_NATIVE_ENDIAN, | |
db7b5426 BS |
3055 | }; |
3056 | ||
de712f94 AK |
3057 | static uint64_t subpage_ram_read(void *opaque, target_phys_addr_t addr, |
3058 | unsigned size) | |
56384e8b AF |
3059 | { |
3060 | ram_addr_t raddr = addr; | |
3061 | void *ptr = qemu_get_ram_ptr(raddr); | |
de712f94 AK |
3062 | switch (size) { |
3063 | case 1: return ldub_p(ptr); | |
3064 | case 2: return lduw_p(ptr); | |
3065 | case 4: return ldl_p(ptr); | |
3066 | default: abort(); | |
3067 | } | |
56384e8b AF |
3068 | } |
3069 | ||
de712f94 AK |
3070 | static void subpage_ram_write(void *opaque, target_phys_addr_t addr, |
3071 | uint64_t value, unsigned size) | |
56384e8b AF |
3072 | { |
3073 | ram_addr_t raddr = addr; | |
3074 | void *ptr = qemu_get_ram_ptr(raddr); | |
de712f94 AK |
3075 | switch (size) { |
3076 | case 1: return stb_p(ptr, value); | |
3077 | case 2: return stw_p(ptr, value); | |
3078 | case 4: return stl_p(ptr, value); | |
3079 | default: abort(); | |
3080 | } | |
56384e8b AF |
3081 | } |
3082 | ||
de712f94 AK |
3083 | static const MemoryRegionOps subpage_ram_ops = { |
3084 | .read = subpage_ram_read, | |
3085 | .write = subpage_ram_write, | |
3086 | .endianness = DEVICE_NATIVE_ENDIAN, | |
56384e8b AF |
3087 | }; |
3088 | ||
c227f099 | 3089 | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
5312bd8b | 3090 | uint16_t section) |
db7b5426 BS |
3091 | { |
3092 | int idx, eidx; | |
3093 | ||
3094 | if (start >= TARGET_PAGE_SIZE || end >= TARGET_PAGE_SIZE) | |
3095 | return -1; | |
3096 | idx = SUBPAGE_IDX(start); | |
3097 | eidx = SUBPAGE_IDX(end); | |
3098 | #if defined(DEBUG_SUBPAGE) | |
0bf9e31a | 3099 | printf("%s: %p start %08x end %08x idx %08x eidx %08x mem %ld\n", __func__, |
db7b5426 BS |
3100 | mmio, start, end, idx, eidx, memory); |
3101 | #endif | |
5312bd8b AK |
3102 | if (memory_region_is_ram(phys_sections[section].mr)) { |
3103 | MemoryRegionSection new_section = phys_sections[section]; | |
3104 | new_section.mr = &io_mem_subpage_ram; | |
3105 | section = phys_section_add(&new_section); | |
56384e8b | 3106 | } |
db7b5426 | 3107 | for (; idx <= eidx; idx++) { |
5312bd8b | 3108 | mmio->sub_section[idx] = section; |
db7b5426 BS |
3109 | } |
3110 | ||
3111 | return 0; | |
3112 | } | |
3113 | ||
0f0cb164 | 3114 | static subpage_t *subpage_init(target_phys_addr_t base) |
db7b5426 | 3115 | { |
c227f099 | 3116 | subpage_t *mmio; |
db7b5426 | 3117 | |
7267c094 | 3118 | mmio = g_malloc0(sizeof(subpage_t)); |
1eec614b AL |
3119 | |
3120 | mmio->base = base; | |
70c68e44 AK |
3121 | memory_region_init_io(&mmio->iomem, &subpage_ops, mmio, |
3122 | "subpage", TARGET_PAGE_SIZE); | |
b3b00c78 | 3123 | mmio->iomem.subpage = true; |
db7b5426 | 3124 | #if defined(DEBUG_SUBPAGE) |
1eec614b AL |
3125 | printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__, |
3126 | mmio, base, TARGET_PAGE_SIZE, subpage_memory); | |
db7b5426 | 3127 | #endif |
0f0cb164 | 3128 | subpage_register(mmio, 0, TARGET_PAGE_SIZE-1, phys_section_unassigned); |
db7b5426 BS |
3129 | |
3130 | return mmio; | |
3131 | } | |
3132 | ||
5312bd8b AK |
3133 | static uint16_t dummy_section(MemoryRegion *mr) |
3134 | { | |
3135 | MemoryRegionSection section = { | |
3136 | .mr = mr, | |
3137 | .offset_within_address_space = 0, | |
3138 | .offset_within_region = 0, | |
3139 | .size = UINT64_MAX, | |
3140 | }; | |
3141 | ||
3142 | return phys_section_add(§ion); | |
3143 | } | |
3144 | ||
37ec01d4 | 3145 | MemoryRegion *iotlb_to_region(target_phys_addr_t index) |
aa102231 | 3146 | { |
37ec01d4 | 3147 | return phys_sections[index & ~TARGET_PAGE_MASK].mr; |
aa102231 AK |
3148 | } |
3149 | ||
e9179ce1 AK |
3150 | static void io_mem_init(void) |
3151 | { | |
0e0df1e2 | 3152 | memory_region_init_io(&io_mem_ram, &error_mem_ops, NULL, "ram", UINT64_MAX); |
0e0df1e2 AK |
3153 | memory_region_init_io(&io_mem_rom, &rom_mem_ops, NULL, "rom", UINT64_MAX); |
3154 | memory_region_init_io(&io_mem_unassigned, &unassigned_mem_ops, NULL, | |
3155 | "unassigned", UINT64_MAX); | |
3156 | memory_region_init_io(&io_mem_notdirty, ¬dirty_mem_ops, NULL, | |
3157 | "notdirty", UINT64_MAX); | |
de712f94 AK |
3158 | memory_region_init_io(&io_mem_subpage_ram, &subpage_ram_ops, NULL, |
3159 | "subpage-ram", UINT64_MAX); | |
1ec9b909 AK |
3160 | memory_region_init_io(&io_mem_watch, &watch_mem_ops, NULL, |
3161 | "watch", UINT64_MAX); | |
e9179ce1 AK |
3162 | } |
3163 | ||
50c1e149 AK |
3164 | static void core_begin(MemoryListener *listener) |
3165 | { | |
54688b1e | 3166 | destroy_all_mappings(); |
5312bd8b | 3167 | phys_sections_clear(); |
c19e8800 | 3168 | phys_map.ptr = PHYS_MAP_NODE_NIL; |
5312bd8b | 3169 | phys_section_unassigned = dummy_section(&io_mem_unassigned); |
aa102231 AK |
3170 | phys_section_notdirty = dummy_section(&io_mem_notdirty); |
3171 | phys_section_rom = dummy_section(&io_mem_rom); | |
3172 | phys_section_watch = dummy_section(&io_mem_watch); | |
50c1e149 AK |
3173 | } |
3174 | ||
3175 | static void core_commit(MemoryListener *listener) | |
3176 | { | |
9349b4f9 | 3177 | CPUArchState *env; |
117712c3 AK |
3178 | |
3179 | /* since each CPU stores ram addresses in its TLB cache, we must | |
3180 | reset the modified entries */ | |
3181 | /* XXX: slow ! */ | |
3182 | for(env = first_cpu; env != NULL; env = env->next_cpu) { | |
3183 | tlb_flush(env, 1); | |
3184 | } | |
50c1e149 AK |
3185 | } |
3186 | ||
93632747 AK |
3187 | static void core_region_add(MemoryListener *listener, |
3188 | MemoryRegionSection *section) | |
3189 | { | |
4855d41a | 3190 | cpu_register_physical_memory_log(section, section->readonly); |
93632747 AK |
3191 | } |
3192 | ||
3193 | static void core_region_del(MemoryListener *listener, | |
3194 | MemoryRegionSection *section) | |
3195 | { | |
93632747 AK |
3196 | } |
3197 | ||
50c1e149 AK |
3198 | static void core_region_nop(MemoryListener *listener, |
3199 | MemoryRegionSection *section) | |
3200 | { | |
54688b1e | 3201 | cpu_register_physical_memory_log(section, section->readonly); |
50c1e149 AK |
3202 | } |
3203 | ||
93632747 AK |
3204 | static void core_log_start(MemoryListener *listener, |
3205 | MemoryRegionSection *section) | |
3206 | { | |
3207 | } | |
3208 | ||
3209 | static void core_log_stop(MemoryListener *listener, | |
3210 | MemoryRegionSection *section) | |
3211 | { | |
3212 | } | |
3213 | ||
3214 | static void core_log_sync(MemoryListener *listener, | |
3215 | MemoryRegionSection *section) | |
3216 | { | |
3217 | } | |
3218 | ||
3219 | static void core_log_global_start(MemoryListener *listener) | |
3220 | { | |
3221 | cpu_physical_memory_set_dirty_tracking(1); | |
3222 | } | |
3223 | ||
3224 | static void core_log_global_stop(MemoryListener *listener) | |
3225 | { | |
3226 | cpu_physical_memory_set_dirty_tracking(0); | |
3227 | } | |
3228 | ||
3229 | static void core_eventfd_add(MemoryListener *listener, | |
3230 | MemoryRegionSection *section, | |
753d5e14 | 3231 | bool match_data, uint64_t data, EventNotifier *e) |
93632747 AK |
3232 | { |
3233 | } | |
3234 | ||
3235 | static void core_eventfd_del(MemoryListener *listener, | |
3236 | MemoryRegionSection *section, | |
753d5e14 | 3237 | bool match_data, uint64_t data, EventNotifier *e) |
93632747 AK |
3238 | { |
3239 | } | |
3240 | ||
50c1e149 AK |
3241 | static void io_begin(MemoryListener *listener) |
3242 | { | |
3243 | } | |
3244 | ||
3245 | static void io_commit(MemoryListener *listener) | |
3246 | { | |
3247 | } | |
3248 | ||
4855d41a AK |
3249 | static void io_region_add(MemoryListener *listener, |
3250 | MemoryRegionSection *section) | |
3251 | { | |
a2d33521 AK |
3252 | MemoryRegionIORange *mrio = g_new(MemoryRegionIORange, 1); |
3253 | ||
3254 | mrio->mr = section->mr; | |
3255 | mrio->offset = section->offset_within_region; | |
3256 | iorange_init(&mrio->iorange, &memory_region_iorange_ops, | |
4855d41a | 3257 | section->offset_within_address_space, section->size); |
a2d33521 | 3258 | ioport_register(&mrio->iorange); |
4855d41a AK |
3259 | } |
3260 | ||
3261 | static void io_region_del(MemoryListener *listener, | |
3262 | MemoryRegionSection *section) | |
3263 | { | |
3264 | isa_unassign_ioport(section->offset_within_address_space, section->size); | |
3265 | } | |
3266 | ||
50c1e149 AK |
3267 | static void io_region_nop(MemoryListener *listener, |
3268 | MemoryRegionSection *section) | |
3269 | { | |
3270 | } | |
3271 | ||
4855d41a AK |
3272 | static void io_log_start(MemoryListener *listener, |
3273 | MemoryRegionSection *section) | |
3274 | { | |
3275 | } | |
3276 | ||
3277 | static void io_log_stop(MemoryListener *listener, | |
3278 | MemoryRegionSection *section) | |
3279 | { | |
3280 | } | |
3281 | ||
3282 | static void io_log_sync(MemoryListener *listener, | |
3283 | MemoryRegionSection *section) | |
3284 | { | |
3285 | } | |
3286 | ||
3287 | static void io_log_global_start(MemoryListener *listener) | |
3288 | { | |
3289 | } | |
3290 | ||
3291 | static void io_log_global_stop(MemoryListener *listener) | |
3292 | { | |
3293 | } | |
3294 | ||
3295 | static void io_eventfd_add(MemoryListener *listener, | |
3296 | MemoryRegionSection *section, | |
753d5e14 | 3297 | bool match_data, uint64_t data, EventNotifier *e) |
4855d41a AK |
3298 | { |
3299 | } | |
3300 | ||
3301 | static void io_eventfd_del(MemoryListener *listener, | |
3302 | MemoryRegionSection *section, | |
753d5e14 | 3303 | bool match_data, uint64_t data, EventNotifier *e) |
4855d41a AK |
3304 | { |
3305 | } | |
3306 | ||
93632747 | 3307 | static MemoryListener core_memory_listener = { |
50c1e149 AK |
3308 | .begin = core_begin, |
3309 | .commit = core_commit, | |
93632747 AK |
3310 | .region_add = core_region_add, |
3311 | .region_del = core_region_del, | |
50c1e149 | 3312 | .region_nop = core_region_nop, |
93632747 AK |
3313 | .log_start = core_log_start, |
3314 | .log_stop = core_log_stop, | |
3315 | .log_sync = core_log_sync, | |
3316 | .log_global_start = core_log_global_start, | |
3317 | .log_global_stop = core_log_global_stop, | |
3318 | .eventfd_add = core_eventfd_add, | |
3319 | .eventfd_del = core_eventfd_del, | |
3320 | .priority = 0, | |
3321 | }; | |
3322 | ||
4855d41a | 3323 | static MemoryListener io_memory_listener = { |
50c1e149 AK |
3324 | .begin = io_begin, |
3325 | .commit = io_commit, | |
4855d41a AK |
3326 | .region_add = io_region_add, |
3327 | .region_del = io_region_del, | |
50c1e149 | 3328 | .region_nop = io_region_nop, |
4855d41a AK |
3329 | .log_start = io_log_start, |
3330 | .log_stop = io_log_stop, | |
3331 | .log_sync = io_log_sync, | |
3332 | .log_global_start = io_log_global_start, | |
3333 | .log_global_stop = io_log_global_stop, | |
3334 | .eventfd_add = io_eventfd_add, | |
3335 | .eventfd_del = io_eventfd_del, | |
3336 | .priority = 0, | |
3337 | }; | |
3338 | ||
62152b8a AK |
3339 | static void memory_map_init(void) |
3340 | { | |
7267c094 | 3341 | system_memory = g_malloc(sizeof(*system_memory)); |
8417cebf | 3342 | memory_region_init(system_memory, "system", INT64_MAX); |
62152b8a | 3343 | set_system_memory_map(system_memory); |
309cb471 | 3344 | |
7267c094 | 3345 | system_io = g_malloc(sizeof(*system_io)); |
309cb471 AK |
3346 | memory_region_init(system_io, "io", 65536); |
3347 | set_system_io_map(system_io); | |
93632747 | 3348 | |
4855d41a AK |
3349 | memory_listener_register(&core_memory_listener, system_memory); |
3350 | memory_listener_register(&io_memory_listener, system_io); | |
62152b8a AK |
3351 | } |
3352 | ||
3353 | MemoryRegion *get_system_memory(void) | |
3354 | { | |
3355 | return system_memory; | |
3356 | } | |
3357 | ||
309cb471 AK |
3358 | MemoryRegion *get_system_io(void) |
3359 | { | |
3360 | return system_io; | |
3361 | } | |
3362 | ||
e2eef170 PB |
3363 | #endif /* !defined(CONFIG_USER_ONLY) */ |
3364 | ||
13eb76e0 FB |
3365 | /* physical memory access (slow version, mainly for debug) */ |
3366 | #if defined(CONFIG_USER_ONLY) | |
9349b4f9 | 3367 | int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr, |
a68fe89c | 3368 | uint8_t *buf, int len, int is_write) |
13eb76e0 FB |
3369 | { |
3370 | int l, flags; | |
3371 | target_ulong page; | |
53a5960a | 3372 | void * p; |
13eb76e0 FB |
3373 | |
3374 | while (len > 0) { | |
3375 | page = addr & TARGET_PAGE_MASK; | |
3376 | l = (page + TARGET_PAGE_SIZE) - addr; | |
3377 | if (l > len) | |
3378 | l = len; | |
3379 | flags = page_get_flags(page); | |
3380 | if (!(flags & PAGE_VALID)) | |
a68fe89c | 3381 | return -1; |
13eb76e0 FB |
3382 | if (is_write) { |
3383 | if (!(flags & PAGE_WRITE)) | |
a68fe89c | 3384 | return -1; |
579a97f7 | 3385 | /* XXX: this code should not depend on lock_user */ |
72fb7daa | 3386 | if (!(p = lock_user(VERIFY_WRITE, addr, l, 0))) |
a68fe89c | 3387 | return -1; |
72fb7daa AJ |
3388 | memcpy(p, buf, l); |
3389 | unlock_user(p, addr, l); | |
13eb76e0 FB |
3390 | } else { |
3391 | if (!(flags & PAGE_READ)) | |
a68fe89c | 3392 | return -1; |
579a97f7 | 3393 | /* XXX: this code should not depend on lock_user */ |
72fb7daa | 3394 | if (!(p = lock_user(VERIFY_READ, addr, l, 1))) |
a68fe89c | 3395 | return -1; |
72fb7daa | 3396 | memcpy(buf, p, l); |
5b257578 | 3397 | unlock_user(p, addr, 0); |
13eb76e0 FB |
3398 | } |
3399 | len -= l; | |
3400 | buf += l; | |
3401 | addr += l; | |
3402 | } | |
a68fe89c | 3403 | return 0; |
13eb76e0 | 3404 | } |
8df1cd07 | 3405 | |
13eb76e0 | 3406 | #else |
c227f099 | 3407 | void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf, |
13eb76e0 FB |
3408 | int len, int is_write) |
3409 | { | |
37ec01d4 | 3410 | int l; |
13eb76e0 FB |
3411 | uint8_t *ptr; |
3412 | uint32_t val; | |
c227f099 | 3413 | target_phys_addr_t page; |
f3705d53 | 3414 | MemoryRegionSection *section; |
3b46e624 | 3415 | |
13eb76e0 FB |
3416 | while (len > 0) { |
3417 | page = addr & TARGET_PAGE_MASK; | |
3418 | l = (page + TARGET_PAGE_SIZE) - addr; | |
3419 | if (l > len) | |
3420 | l = len; | |
06ef3525 | 3421 | section = phys_page_find(page >> TARGET_PAGE_BITS); |
3b46e624 | 3422 | |
13eb76e0 | 3423 | if (is_write) { |
f3705d53 | 3424 | if (!memory_region_is_ram(section->mr)) { |
f1f6e3b8 | 3425 | target_phys_addr_t addr1; |
cc5bea60 | 3426 | addr1 = memory_region_section_addr(section, addr); |
6a00d601 FB |
3427 | /* XXX: could force cpu_single_env to NULL to avoid |
3428 | potential bugs */ | |
6c2934db | 3429 | if (l >= 4 && ((addr1 & 3) == 0)) { |
1c213d19 | 3430 | /* 32 bit write access */ |
c27004ec | 3431 | val = ldl_p(buf); |
37ec01d4 | 3432 | io_mem_write(section->mr, addr1, val, 4); |
13eb76e0 | 3433 | l = 4; |
6c2934db | 3434 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
1c213d19 | 3435 | /* 16 bit write access */ |
c27004ec | 3436 | val = lduw_p(buf); |
37ec01d4 | 3437 | io_mem_write(section->mr, addr1, val, 2); |
13eb76e0 FB |
3438 | l = 2; |
3439 | } else { | |
1c213d19 | 3440 | /* 8 bit write access */ |
c27004ec | 3441 | val = ldub_p(buf); |
37ec01d4 | 3442 | io_mem_write(section->mr, addr1, val, 1); |
13eb76e0 FB |
3443 | l = 1; |
3444 | } | |
f3705d53 | 3445 | } else if (!section->readonly) { |
8ca5692d | 3446 | ram_addr_t addr1; |
f3705d53 | 3447 | addr1 = memory_region_get_ram_addr(section->mr) |
cc5bea60 | 3448 | + memory_region_section_addr(section, addr); |
13eb76e0 | 3449 | /* RAM case */ |
5579c7f3 | 3450 | ptr = qemu_get_ram_ptr(addr1); |
13eb76e0 | 3451 | memcpy(ptr, buf, l); |
3a7d929e FB |
3452 | if (!cpu_physical_memory_is_dirty(addr1)) { |
3453 | /* invalidate code */ | |
3454 | tb_invalidate_phys_page_range(addr1, addr1 + l, 0); | |
3455 | /* set dirty bit */ | |
f7c11b53 YT |
3456 | cpu_physical_memory_set_dirty_flags( |
3457 | addr1, (0xff & ~CODE_DIRTY_FLAG)); | |
3a7d929e | 3458 | } |
050a0ddf | 3459 | qemu_put_ram_ptr(ptr); |
13eb76e0 FB |
3460 | } |
3461 | } else { | |
cc5bea60 BS |
3462 | if (!(memory_region_is_ram(section->mr) || |
3463 | memory_region_is_romd(section->mr))) { | |
f1f6e3b8 | 3464 | target_phys_addr_t addr1; |
13eb76e0 | 3465 | /* I/O case */ |
cc5bea60 | 3466 | addr1 = memory_region_section_addr(section, addr); |
6c2934db | 3467 | if (l >= 4 && ((addr1 & 3) == 0)) { |
13eb76e0 | 3468 | /* 32 bit read access */ |
37ec01d4 | 3469 | val = io_mem_read(section->mr, addr1, 4); |
c27004ec | 3470 | stl_p(buf, val); |
13eb76e0 | 3471 | l = 4; |
6c2934db | 3472 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
13eb76e0 | 3473 | /* 16 bit read access */ |
37ec01d4 | 3474 | val = io_mem_read(section->mr, addr1, 2); |
c27004ec | 3475 | stw_p(buf, val); |
13eb76e0 FB |
3476 | l = 2; |
3477 | } else { | |
1c213d19 | 3478 | /* 8 bit read access */ |
37ec01d4 | 3479 | val = io_mem_read(section->mr, addr1, 1); |
c27004ec | 3480 | stb_p(buf, val); |
13eb76e0 FB |
3481 | l = 1; |
3482 | } | |
3483 | } else { | |
3484 | /* RAM case */ | |
0a1b357f | 3485 | ptr = qemu_get_ram_ptr(section->mr->ram_addr |
cc5bea60 BS |
3486 | + memory_region_section_addr(section, |
3487 | addr)); | |
f3705d53 | 3488 | memcpy(buf, ptr, l); |
050a0ddf | 3489 | qemu_put_ram_ptr(ptr); |
13eb76e0 FB |
3490 | } |
3491 | } | |
3492 | len -= l; | |
3493 | buf += l; | |
3494 | addr += l; | |
3495 | } | |
3496 | } | |
8df1cd07 | 3497 | |
d0ecd2aa | 3498 | /* used for ROM loading : can write in RAM and ROM */ |
c227f099 | 3499 | void cpu_physical_memory_write_rom(target_phys_addr_t addr, |
d0ecd2aa FB |
3500 | const uint8_t *buf, int len) |
3501 | { | |
3502 | int l; | |
3503 | uint8_t *ptr; | |
c227f099 | 3504 | target_phys_addr_t page; |
f3705d53 | 3505 | MemoryRegionSection *section; |
3b46e624 | 3506 | |
d0ecd2aa FB |
3507 | while (len > 0) { |
3508 | page = addr & TARGET_PAGE_MASK; | |
3509 | l = (page + TARGET_PAGE_SIZE) - addr; | |
3510 | if (l > len) | |
3511 | l = len; | |
06ef3525 | 3512 | section = phys_page_find(page >> TARGET_PAGE_BITS); |
3b46e624 | 3513 | |
cc5bea60 BS |
3514 | if (!(memory_region_is_ram(section->mr) || |
3515 | memory_region_is_romd(section->mr))) { | |
d0ecd2aa FB |
3516 | /* do nothing */ |
3517 | } else { | |
3518 | unsigned long addr1; | |
f3705d53 | 3519 | addr1 = memory_region_get_ram_addr(section->mr) |
cc5bea60 | 3520 | + memory_region_section_addr(section, addr); |
d0ecd2aa | 3521 | /* ROM/RAM case */ |
5579c7f3 | 3522 | ptr = qemu_get_ram_ptr(addr1); |
d0ecd2aa | 3523 | memcpy(ptr, buf, l); |
050a0ddf | 3524 | qemu_put_ram_ptr(ptr); |
d0ecd2aa FB |
3525 | } |
3526 | len -= l; | |
3527 | buf += l; | |
3528 | addr += l; | |
3529 | } | |
3530 | } | |
3531 | ||
6d16c2f8 AL |
3532 | typedef struct { |
3533 | void *buffer; | |
c227f099 AL |
3534 | target_phys_addr_t addr; |
3535 | target_phys_addr_t len; | |
6d16c2f8 AL |
3536 | } BounceBuffer; |
3537 | ||
3538 | static BounceBuffer bounce; | |
3539 | ||
ba223c29 AL |
3540 | typedef struct MapClient { |
3541 | void *opaque; | |
3542 | void (*callback)(void *opaque); | |
72cf2d4f | 3543 | QLIST_ENTRY(MapClient) link; |
ba223c29 AL |
3544 | } MapClient; |
3545 | ||
72cf2d4f BS |
3546 | static QLIST_HEAD(map_client_list, MapClient) map_client_list |
3547 | = QLIST_HEAD_INITIALIZER(map_client_list); | |
ba223c29 AL |
3548 | |
3549 | void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque)) | |
3550 | { | |
7267c094 | 3551 | MapClient *client = g_malloc(sizeof(*client)); |
ba223c29 AL |
3552 | |
3553 | client->opaque = opaque; | |
3554 | client->callback = callback; | |
72cf2d4f | 3555 | QLIST_INSERT_HEAD(&map_client_list, client, link); |
ba223c29 AL |
3556 | return client; |
3557 | } | |
3558 | ||
3559 | void cpu_unregister_map_client(void *_client) | |
3560 | { | |
3561 | MapClient *client = (MapClient *)_client; | |
3562 | ||
72cf2d4f | 3563 | QLIST_REMOVE(client, link); |
7267c094 | 3564 | g_free(client); |
ba223c29 AL |
3565 | } |
3566 | ||
3567 | static void cpu_notify_map_clients(void) | |
3568 | { | |
3569 | MapClient *client; | |
3570 | ||
72cf2d4f BS |
3571 | while (!QLIST_EMPTY(&map_client_list)) { |
3572 | client = QLIST_FIRST(&map_client_list); | |
ba223c29 | 3573 | client->callback(client->opaque); |
34d5e948 | 3574 | cpu_unregister_map_client(client); |
ba223c29 AL |
3575 | } |
3576 | } | |
3577 | ||
6d16c2f8 AL |
3578 | /* Map a physical memory region into a host virtual address. |
3579 | * May map a subset of the requested range, given by and returned in *plen. | |
3580 | * May return NULL if resources needed to perform the mapping are exhausted. | |
3581 | * Use only for reads OR writes - not for read-modify-write operations. | |
ba223c29 AL |
3582 | * Use cpu_register_map_client() to know when retrying the map operation is |
3583 | * likely to succeed. | |
6d16c2f8 | 3584 | */ |
c227f099 AL |
3585 | void *cpu_physical_memory_map(target_phys_addr_t addr, |
3586 | target_phys_addr_t *plen, | |
6d16c2f8 AL |
3587 | int is_write) |
3588 | { | |
c227f099 | 3589 | target_phys_addr_t len = *plen; |
38bee5dc | 3590 | target_phys_addr_t todo = 0; |
6d16c2f8 | 3591 | int l; |
c227f099 | 3592 | target_phys_addr_t page; |
f3705d53 | 3593 | MemoryRegionSection *section; |
f15fbc4b | 3594 | ram_addr_t raddr = RAM_ADDR_MAX; |
8ab934f9 SS |
3595 | ram_addr_t rlen; |
3596 | void *ret; | |
6d16c2f8 AL |
3597 | |
3598 | while (len > 0) { | |
3599 | page = addr & TARGET_PAGE_MASK; | |
3600 | l = (page + TARGET_PAGE_SIZE) - addr; | |
3601 | if (l > len) | |
3602 | l = len; | |
06ef3525 | 3603 | section = phys_page_find(page >> TARGET_PAGE_BITS); |
6d16c2f8 | 3604 | |
f3705d53 | 3605 | if (!(memory_region_is_ram(section->mr) && !section->readonly)) { |
38bee5dc | 3606 | if (todo || bounce.buffer) { |
6d16c2f8 AL |
3607 | break; |
3608 | } | |
3609 | bounce.buffer = qemu_memalign(TARGET_PAGE_SIZE, TARGET_PAGE_SIZE); | |
3610 | bounce.addr = addr; | |
3611 | bounce.len = l; | |
3612 | if (!is_write) { | |
54f7b4a3 | 3613 | cpu_physical_memory_read(addr, bounce.buffer, l); |
6d16c2f8 | 3614 | } |
38bee5dc SS |
3615 | |
3616 | *plen = l; | |
3617 | return bounce.buffer; | |
6d16c2f8 | 3618 | } |
8ab934f9 | 3619 | if (!todo) { |
f3705d53 | 3620 | raddr = memory_region_get_ram_addr(section->mr) |
cc5bea60 | 3621 | + memory_region_section_addr(section, addr); |
8ab934f9 | 3622 | } |
6d16c2f8 AL |
3623 | |
3624 | len -= l; | |
3625 | addr += l; | |
38bee5dc | 3626 | todo += l; |
6d16c2f8 | 3627 | } |
8ab934f9 SS |
3628 | rlen = todo; |
3629 | ret = qemu_ram_ptr_length(raddr, &rlen); | |
3630 | *plen = rlen; | |
3631 | return ret; | |
6d16c2f8 AL |
3632 | } |
3633 | ||
3634 | /* Unmaps a memory region previously mapped by cpu_physical_memory_map(). | |
3635 | * Will also mark the memory as dirty if is_write == 1. access_len gives | |
3636 | * the amount of memory that was actually read or written by the caller. | |
3637 | */ | |
c227f099 AL |
3638 | void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len, |
3639 | int is_write, target_phys_addr_t access_len) | |
6d16c2f8 AL |
3640 | { |
3641 | if (buffer != bounce.buffer) { | |
3642 | if (is_write) { | |
e890261f | 3643 | ram_addr_t addr1 = qemu_ram_addr_from_host_nofail(buffer); |
6d16c2f8 AL |
3644 | while (access_len) { |
3645 | unsigned l; | |
3646 | l = TARGET_PAGE_SIZE; | |
3647 | if (l > access_len) | |
3648 | l = access_len; | |
3649 | if (!cpu_physical_memory_is_dirty(addr1)) { | |
3650 | /* invalidate code */ | |
3651 | tb_invalidate_phys_page_range(addr1, addr1 + l, 0); | |
3652 | /* set dirty bit */ | |
f7c11b53 YT |
3653 | cpu_physical_memory_set_dirty_flags( |
3654 | addr1, (0xff & ~CODE_DIRTY_FLAG)); | |
6d16c2f8 AL |
3655 | } |
3656 | addr1 += l; | |
3657 | access_len -= l; | |
3658 | } | |
3659 | } | |
868bb33f | 3660 | if (xen_enabled()) { |
e41d7c69 | 3661 | xen_invalidate_map_cache_entry(buffer); |
050a0ddf | 3662 | } |
6d16c2f8 AL |
3663 | return; |
3664 | } | |
3665 | if (is_write) { | |
3666 | cpu_physical_memory_write(bounce.addr, bounce.buffer, access_len); | |
3667 | } | |
f8a83245 | 3668 | qemu_vfree(bounce.buffer); |
6d16c2f8 | 3669 | bounce.buffer = NULL; |
ba223c29 | 3670 | cpu_notify_map_clients(); |
6d16c2f8 | 3671 | } |
d0ecd2aa | 3672 | |
8df1cd07 | 3673 | /* warning: addr must be aligned */ |
1e78bcc1 AG |
3674 | static inline uint32_t ldl_phys_internal(target_phys_addr_t addr, |
3675 | enum device_endian endian) | |
8df1cd07 | 3676 | { |
8df1cd07 FB |
3677 | uint8_t *ptr; |
3678 | uint32_t val; | |
f3705d53 | 3679 | MemoryRegionSection *section; |
8df1cd07 | 3680 | |
06ef3525 | 3681 | section = phys_page_find(addr >> TARGET_PAGE_BITS); |
3b46e624 | 3682 | |
cc5bea60 BS |
3683 | if (!(memory_region_is_ram(section->mr) || |
3684 | memory_region_is_romd(section->mr))) { | |
8df1cd07 | 3685 | /* I/O case */ |
cc5bea60 | 3686 | addr = memory_region_section_addr(section, addr); |
37ec01d4 | 3687 | val = io_mem_read(section->mr, addr, 4); |
1e78bcc1 AG |
3688 | #if defined(TARGET_WORDS_BIGENDIAN) |
3689 | if (endian == DEVICE_LITTLE_ENDIAN) { | |
3690 | val = bswap32(val); | |
3691 | } | |
3692 | #else | |
3693 | if (endian == DEVICE_BIG_ENDIAN) { | |
3694 | val = bswap32(val); | |
3695 | } | |
3696 | #endif | |
8df1cd07 FB |
3697 | } else { |
3698 | /* RAM case */ | |
f3705d53 | 3699 | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
06ef3525 | 3700 | & TARGET_PAGE_MASK) |
cc5bea60 | 3701 | + memory_region_section_addr(section, addr)); |
1e78bcc1 AG |
3702 | switch (endian) { |
3703 | case DEVICE_LITTLE_ENDIAN: | |
3704 | val = ldl_le_p(ptr); | |
3705 | break; | |
3706 | case DEVICE_BIG_ENDIAN: | |
3707 | val = ldl_be_p(ptr); | |
3708 | break; | |
3709 | default: | |
3710 | val = ldl_p(ptr); | |
3711 | break; | |
3712 | } | |
8df1cd07 FB |
3713 | } |
3714 | return val; | |
3715 | } | |
3716 | ||
1e78bcc1 AG |
3717 | uint32_t ldl_phys(target_phys_addr_t addr) |
3718 | { | |
3719 | return ldl_phys_internal(addr, DEVICE_NATIVE_ENDIAN); | |
3720 | } | |
3721 | ||
3722 | uint32_t ldl_le_phys(target_phys_addr_t addr) | |
3723 | { | |
3724 | return ldl_phys_internal(addr, DEVICE_LITTLE_ENDIAN); | |
3725 | } | |
3726 | ||
3727 | uint32_t ldl_be_phys(target_phys_addr_t addr) | |
3728 | { | |
3729 | return ldl_phys_internal(addr, DEVICE_BIG_ENDIAN); | |
3730 | } | |
3731 | ||
84b7b8e7 | 3732 | /* warning: addr must be aligned */ |
1e78bcc1 AG |
3733 | static inline uint64_t ldq_phys_internal(target_phys_addr_t addr, |
3734 | enum device_endian endian) | |
84b7b8e7 | 3735 | { |
84b7b8e7 FB |
3736 | uint8_t *ptr; |
3737 | uint64_t val; | |
f3705d53 | 3738 | MemoryRegionSection *section; |
84b7b8e7 | 3739 | |
06ef3525 | 3740 | section = phys_page_find(addr >> TARGET_PAGE_BITS); |
3b46e624 | 3741 | |
cc5bea60 BS |
3742 | if (!(memory_region_is_ram(section->mr) || |
3743 | memory_region_is_romd(section->mr))) { | |
84b7b8e7 | 3744 | /* I/O case */ |
cc5bea60 | 3745 | addr = memory_region_section_addr(section, addr); |
1e78bcc1 AG |
3746 | |
3747 | /* XXX This is broken when device endian != cpu endian. | |
3748 | Fix and add "endian" variable check */ | |
84b7b8e7 | 3749 | #ifdef TARGET_WORDS_BIGENDIAN |
37ec01d4 AK |
3750 | val = io_mem_read(section->mr, addr, 4) << 32; |
3751 | val |= io_mem_read(section->mr, addr + 4, 4); | |
84b7b8e7 | 3752 | #else |
37ec01d4 AK |
3753 | val = io_mem_read(section->mr, addr, 4); |
3754 | val |= io_mem_read(section->mr, addr + 4, 4) << 32; | |
84b7b8e7 FB |
3755 | #endif |
3756 | } else { | |
3757 | /* RAM case */ | |
f3705d53 | 3758 | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
06ef3525 | 3759 | & TARGET_PAGE_MASK) |
cc5bea60 | 3760 | + memory_region_section_addr(section, addr)); |
1e78bcc1 AG |
3761 | switch (endian) { |
3762 | case DEVICE_LITTLE_ENDIAN: | |
3763 | val = ldq_le_p(ptr); | |
3764 | break; | |
3765 | case DEVICE_BIG_ENDIAN: | |
3766 | val = ldq_be_p(ptr); | |
3767 | break; | |
3768 | default: | |
3769 | val = ldq_p(ptr); | |
3770 | break; | |
3771 | } | |
84b7b8e7 FB |
3772 | } |
3773 | return val; | |
3774 | } | |
3775 | ||
1e78bcc1 AG |
3776 | uint64_t ldq_phys(target_phys_addr_t addr) |
3777 | { | |
3778 | return ldq_phys_internal(addr, DEVICE_NATIVE_ENDIAN); | |
3779 | } | |
3780 | ||
3781 | uint64_t ldq_le_phys(target_phys_addr_t addr) | |
3782 | { | |
3783 | return ldq_phys_internal(addr, DEVICE_LITTLE_ENDIAN); | |
3784 | } | |
3785 | ||
3786 | uint64_t ldq_be_phys(target_phys_addr_t addr) | |
3787 | { | |
3788 | return ldq_phys_internal(addr, DEVICE_BIG_ENDIAN); | |
3789 | } | |
3790 | ||
aab33094 | 3791 | /* XXX: optimize */ |
c227f099 | 3792 | uint32_t ldub_phys(target_phys_addr_t addr) |
aab33094 FB |
3793 | { |
3794 | uint8_t val; | |
3795 | cpu_physical_memory_read(addr, &val, 1); | |
3796 | return val; | |
3797 | } | |
3798 | ||
733f0b02 | 3799 | /* warning: addr must be aligned */ |
1e78bcc1 AG |
3800 | static inline uint32_t lduw_phys_internal(target_phys_addr_t addr, |
3801 | enum device_endian endian) | |
aab33094 | 3802 | { |
733f0b02 MT |
3803 | uint8_t *ptr; |
3804 | uint64_t val; | |
f3705d53 | 3805 | MemoryRegionSection *section; |
733f0b02 | 3806 | |
06ef3525 | 3807 | section = phys_page_find(addr >> TARGET_PAGE_BITS); |
733f0b02 | 3808 | |
cc5bea60 BS |
3809 | if (!(memory_region_is_ram(section->mr) || |
3810 | memory_region_is_romd(section->mr))) { | |
733f0b02 | 3811 | /* I/O case */ |
cc5bea60 | 3812 | addr = memory_region_section_addr(section, addr); |
37ec01d4 | 3813 | val = io_mem_read(section->mr, addr, 2); |
1e78bcc1 AG |
3814 | #if defined(TARGET_WORDS_BIGENDIAN) |
3815 | if (endian == DEVICE_LITTLE_ENDIAN) { | |
3816 | val = bswap16(val); | |
3817 | } | |
3818 | #else | |
3819 | if (endian == DEVICE_BIG_ENDIAN) { | |
3820 | val = bswap16(val); | |
3821 | } | |
3822 | #endif | |
733f0b02 MT |
3823 | } else { |
3824 | /* RAM case */ | |
f3705d53 | 3825 | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
06ef3525 | 3826 | & TARGET_PAGE_MASK) |
cc5bea60 | 3827 | + memory_region_section_addr(section, addr)); |
1e78bcc1 AG |
3828 | switch (endian) { |
3829 | case DEVICE_LITTLE_ENDIAN: | |
3830 | val = lduw_le_p(ptr); | |
3831 | break; | |
3832 | case DEVICE_BIG_ENDIAN: | |
3833 | val = lduw_be_p(ptr); | |
3834 | break; | |
3835 | default: | |
3836 | val = lduw_p(ptr); | |
3837 | break; | |
3838 | } | |
733f0b02 MT |
3839 | } |
3840 | return val; | |
aab33094 FB |
3841 | } |
3842 | ||
1e78bcc1 AG |
3843 | uint32_t lduw_phys(target_phys_addr_t addr) |
3844 | { | |
3845 | return lduw_phys_internal(addr, DEVICE_NATIVE_ENDIAN); | |
3846 | } | |
3847 | ||
3848 | uint32_t lduw_le_phys(target_phys_addr_t addr) | |
3849 | { | |
3850 | return lduw_phys_internal(addr, DEVICE_LITTLE_ENDIAN); | |
3851 | } | |
3852 | ||
3853 | uint32_t lduw_be_phys(target_phys_addr_t addr) | |
3854 | { | |
3855 | return lduw_phys_internal(addr, DEVICE_BIG_ENDIAN); | |
3856 | } | |
3857 | ||
8df1cd07 FB |
3858 | /* warning: addr must be aligned. The ram page is not masked as dirty |
3859 | and the code inside is not invalidated. It is useful if the dirty | |
3860 | bits are used to track modified PTEs */ | |
c227f099 | 3861 | void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val) |
8df1cd07 | 3862 | { |
8df1cd07 | 3863 | uint8_t *ptr; |
f3705d53 | 3864 | MemoryRegionSection *section; |
8df1cd07 | 3865 | |
06ef3525 | 3866 | section = phys_page_find(addr >> TARGET_PAGE_BITS); |
3b46e624 | 3867 | |
f3705d53 | 3868 | if (!memory_region_is_ram(section->mr) || section->readonly) { |
cc5bea60 | 3869 | addr = memory_region_section_addr(section, addr); |
f3705d53 | 3870 | if (memory_region_is_ram(section->mr)) { |
37ec01d4 | 3871 | section = &phys_sections[phys_section_rom]; |
06ef3525 | 3872 | } |
37ec01d4 | 3873 | io_mem_write(section->mr, addr, val, 4); |
8df1cd07 | 3874 | } else { |
f3705d53 | 3875 | unsigned long addr1 = (memory_region_get_ram_addr(section->mr) |
06ef3525 | 3876 | & TARGET_PAGE_MASK) |
cc5bea60 | 3877 | + memory_region_section_addr(section, addr); |
5579c7f3 | 3878 | ptr = qemu_get_ram_ptr(addr1); |
8df1cd07 | 3879 | stl_p(ptr, val); |
74576198 AL |
3880 | |
3881 | if (unlikely(in_migration)) { | |
3882 | if (!cpu_physical_memory_is_dirty(addr1)) { | |
3883 | /* invalidate code */ | |
3884 | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); | |
3885 | /* set dirty bit */ | |
f7c11b53 YT |
3886 | cpu_physical_memory_set_dirty_flags( |
3887 | addr1, (0xff & ~CODE_DIRTY_FLAG)); | |
74576198 AL |
3888 | } |
3889 | } | |
8df1cd07 FB |
3890 | } |
3891 | } | |
3892 | ||
c227f099 | 3893 | void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val) |
bc98a7ef | 3894 | { |
bc98a7ef | 3895 | uint8_t *ptr; |
f3705d53 | 3896 | MemoryRegionSection *section; |
bc98a7ef | 3897 | |
06ef3525 | 3898 | section = phys_page_find(addr >> TARGET_PAGE_BITS); |
3b46e624 | 3899 | |
f3705d53 | 3900 | if (!memory_region_is_ram(section->mr) || section->readonly) { |
cc5bea60 | 3901 | addr = memory_region_section_addr(section, addr); |
f3705d53 | 3902 | if (memory_region_is_ram(section->mr)) { |
37ec01d4 | 3903 | section = &phys_sections[phys_section_rom]; |
06ef3525 | 3904 | } |
bc98a7ef | 3905 | #ifdef TARGET_WORDS_BIGENDIAN |
37ec01d4 AK |
3906 | io_mem_write(section->mr, addr, val >> 32, 4); |
3907 | io_mem_write(section->mr, addr + 4, (uint32_t)val, 4); | |
bc98a7ef | 3908 | #else |
37ec01d4 AK |
3909 | io_mem_write(section->mr, addr, (uint32_t)val, 4); |
3910 | io_mem_write(section->mr, addr + 4, val >> 32, 4); | |
bc98a7ef JM |
3911 | #endif |
3912 | } else { | |
f3705d53 | 3913 | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
06ef3525 | 3914 | & TARGET_PAGE_MASK) |
cc5bea60 | 3915 | + memory_region_section_addr(section, addr)); |
bc98a7ef JM |
3916 | stq_p(ptr, val); |
3917 | } | |
3918 | } | |
3919 | ||
8df1cd07 | 3920 | /* warning: addr must be aligned */ |
1e78bcc1 AG |
3921 | static inline void stl_phys_internal(target_phys_addr_t addr, uint32_t val, |
3922 | enum device_endian endian) | |
8df1cd07 | 3923 | { |
8df1cd07 | 3924 | uint8_t *ptr; |
f3705d53 | 3925 | MemoryRegionSection *section; |
8df1cd07 | 3926 | |
06ef3525 | 3927 | section = phys_page_find(addr >> TARGET_PAGE_BITS); |
3b46e624 | 3928 | |
f3705d53 | 3929 | if (!memory_region_is_ram(section->mr) || section->readonly) { |
cc5bea60 | 3930 | addr = memory_region_section_addr(section, addr); |
f3705d53 | 3931 | if (memory_region_is_ram(section->mr)) { |
37ec01d4 | 3932 | section = &phys_sections[phys_section_rom]; |
06ef3525 | 3933 | } |
1e78bcc1 AG |
3934 | #if defined(TARGET_WORDS_BIGENDIAN) |
3935 | if (endian == DEVICE_LITTLE_ENDIAN) { | |
3936 | val = bswap32(val); | |
3937 | } | |
3938 | #else | |
3939 | if (endian == DEVICE_BIG_ENDIAN) { | |
3940 | val = bswap32(val); | |
3941 | } | |
3942 | #endif | |
37ec01d4 | 3943 | io_mem_write(section->mr, addr, val, 4); |
8df1cd07 FB |
3944 | } else { |
3945 | unsigned long addr1; | |
f3705d53 | 3946 | addr1 = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) |
cc5bea60 | 3947 | + memory_region_section_addr(section, addr); |
8df1cd07 | 3948 | /* RAM case */ |
5579c7f3 | 3949 | ptr = qemu_get_ram_ptr(addr1); |
1e78bcc1 AG |
3950 | switch (endian) { |
3951 | case DEVICE_LITTLE_ENDIAN: | |
3952 | stl_le_p(ptr, val); | |
3953 | break; | |
3954 | case DEVICE_BIG_ENDIAN: | |
3955 | stl_be_p(ptr, val); | |
3956 | break; | |
3957 | default: | |
3958 | stl_p(ptr, val); | |
3959 | break; | |
3960 | } | |
3a7d929e FB |
3961 | if (!cpu_physical_memory_is_dirty(addr1)) { |
3962 | /* invalidate code */ | |
3963 | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); | |
3964 | /* set dirty bit */ | |
f7c11b53 YT |
3965 | cpu_physical_memory_set_dirty_flags(addr1, |
3966 | (0xff & ~CODE_DIRTY_FLAG)); | |
3a7d929e | 3967 | } |
8df1cd07 FB |
3968 | } |
3969 | } | |
3970 | ||
1e78bcc1 AG |
3971 | void stl_phys(target_phys_addr_t addr, uint32_t val) |
3972 | { | |
3973 | stl_phys_internal(addr, val, DEVICE_NATIVE_ENDIAN); | |
3974 | } | |
3975 | ||
3976 | void stl_le_phys(target_phys_addr_t addr, uint32_t val) | |
3977 | { | |
3978 | stl_phys_internal(addr, val, DEVICE_LITTLE_ENDIAN); | |
3979 | } | |
3980 | ||
3981 | void stl_be_phys(target_phys_addr_t addr, uint32_t val) | |
3982 | { | |
3983 | stl_phys_internal(addr, val, DEVICE_BIG_ENDIAN); | |
3984 | } | |
3985 | ||
aab33094 | 3986 | /* XXX: optimize */ |
c227f099 | 3987 | void stb_phys(target_phys_addr_t addr, uint32_t val) |
aab33094 FB |
3988 | { |
3989 | uint8_t v = val; | |
3990 | cpu_physical_memory_write(addr, &v, 1); | |
3991 | } | |
3992 | ||
733f0b02 | 3993 | /* warning: addr must be aligned */ |
1e78bcc1 AG |
3994 | static inline void stw_phys_internal(target_phys_addr_t addr, uint32_t val, |
3995 | enum device_endian endian) | |
aab33094 | 3996 | { |
733f0b02 | 3997 | uint8_t *ptr; |
f3705d53 | 3998 | MemoryRegionSection *section; |
733f0b02 | 3999 | |
06ef3525 | 4000 | section = phys_page_find(addr >> TARGET_PAGE_BITS); |
733f0b02 | 4001 | |
f3705d53 | 4002 | if (!memory_region_is_ram(section->mr) || section->readonly) { |
cc5bea60 | 4003 | addr = memory_region_section_addr(section, addr); |
f3705d53 | 4004 | if (memory_region_is_ram(section->mr)) { |
37ec01d4 | 4005 | section = &phys_sections[phys_section_rom]; |
06ef3525 | 4006 | } |
1e78bcc1 AG |
4007 | #if defined(TARGET_WORDS_BIGENDIAN) |
4008 | if (endian == DEVICE_LITTLE_ENDIAN) { | |
4009 | val = bswap16(val); | |
4010 | } | |
4011 | #else | |
4012 | if (endian == DEVICE_BIG_ENDIAN) { | |
4013 | val = bswap16(val); | |
4014 | } | |
4015 | #endif | |
37ec01d4 | 4016 | io_mem_write(section->mr, addr, val, 2); |
733f0b02 MT |
4017 | } else { |
4018 | unsigned long addr1; | |
f3705d53 | 4019 | addr1 = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) |
cc5bea60 | 4020 | + memory_region_section_addr(section, addr); |
733f0b02 MT |
4021 | /* RAM case */ |
4022 | ptr = qemu_get_ram_ptr(addr1); | |
1e78bcc1 AG |
4023 | switch (endian) { |
4024 | case DEVICE_LITTLE_ENDIAN: | |
4025 | stw_le_p(ptr, val); | |
4026 | break; | |
4027 | case DEVICE_BIG_ENDIAN: | |
4028 | stw_be_p(ptr, val); | |
4029 | break; | |
4030 | default: | |
4031 | stw_p(ptr, val); | |
4032 | break; | |
4033 | } | |
733f0b02 MT |
4034 | if (!cpu_physical_memory_is_dirty(addr1)) { |
4035 | /* invalidate code */ | |
4036 | tb_invalidate_phys_page_range(addr1, addr1 + 2, 0); | |
4037 | /* set dirty bit */ | |
4038 | cpu_physical_memory_set_dirty_flags(addr1, | |
4039 | (0xff & ~CODE_DIRTY_FLAG)); | |
4040 | } | |
4041 | } | |
aab33094 FB |
4042 | } |
4043 | ||
1e78bcc1 AG |
4044 | void stw_phys(target_phys_addr_t addr, uint32_t val) |
4045 | { | |
4046 | stw_phys_internal(addr, val, DEVICE_NATIVE_ENDIAN); | |
4047 | } | |
4048 | ||
4049 | void stw_le_phys(target_phys_addr_t addr, uint32_t val) | |
4050 | { | |
4051 | stw_phys_internal(addr, val, DEVICE_LITTLE_ENDIAN); | |
4052 | } | |
4053 | ||
4054 | void stw_be_phys(target_phys_addr_t addr, uint32_t val) | |
4055 | { | |
4056 | stw_phys_internal(addr, val, DEVICE_BIG_ENDIAN); | |
4057 | } | |
4058 | ||
aab33094 | 4059 | /* XXX: optimize */ |
c227f099 | 4060 | void stq_phys(target_phys_addr_t addr, uint64_t val) |
aab33094 FB |
4061 | { |
4062 | val = tswap64(val); | |
71d2b725 | 4063 | cpu_physical_memory_write(addr, &val, 8); |
aab33094 FB |
4064 | } |
4065 | ||
1e78bcc1 AG |
4066 | void stq_le_phys(target_phys_addr_t addr, uint64_t val) |
4067 | { | |
4068 | val = cpu_to_le64(val); | |
4069 | cpu_physical_memory_write(addr, &val, 8); | |
4070 | } | |
4071 | ||
4072 | void stq_be_phys(target_phys_addr_t addr, uint64_t val) | |
4073 | { | |
4074 | val = cpu_to_be64(val); | |
4075 | cpu_physical_memory_write(addr, &val, 8); | |
4076 | } | |
4077 | ||
5e2972fd | 4078 | /* virtual memory access for debug (includes writing to ROM) */ |
9349b4f9 | 4079 | int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr, |
b448f2f3 | 4080 | uint8_t *buf, int len, int is_write) |
13eb76e0 FB |
4081 | { |
4082 | int l; | |
c227f099 | 4083 | target_phys_addr_t phys_addr; |
9b3c35e0 | 4084 | target_ulong page; |
13eb76e0 FB |
4085 | |
4086 | while (len > 0) { | |
4087 | page = addr & TARGET_PAGE_MASK; | |
4088 | phys_addr = cpu_get_phys_page_debug(env, page); | |
4089 | /* if no physical page mapped, return an error */ | |
4090 | if (phys_addr == -1) | |
4091 | return -1; | |
4092 | l = (page + TARGET_PAGE_SIZE) - addr; | |
4093 | if (l > len) | |
4094 | l = len; | |
5e2972fd | 4095 | phys_addr += (addr & ~TARGET_PAGE_MASK); |
5e2972fd AL |
4096 | if (is_write) |
4097 | cpu_physical_memory_write_rom(phys_addr, buf, l); | |
4098 | else | |
5e2972fd | 4099 | cpu_physical_memory_rw(phys_addr, buf, l, is_write); |
13eb76e0 FB |
4100 | len -= l; |
4101 | buf += l; | |
4102 | addr += l; | |
4103 | } | |
4104 | return 0; | |
4105 | } | |
a68fe89c | 4106 | #endif |
13eb76e0 | 4107 | |
2e70f6ef PB |
4108 | /* in deterministic execution mode, instructions doing device I/Os |
4109 | must be at the end of the TB */ | |
20503968 | 4110 | void cpu_io_recompile(CPUArchState *env, uintptr_t retaddr) |
2e70f6ef PB |
4111 | { |
4112 | TranslationBlock *tb; | |
4113 | uint32_t n, cflags; | |
4114 | target_ulong pc, cs_base; | |
4115 | uint64_t flags; | |
4116 | ||
20503968 | 4117 | tb = tb_find_pc(retaddr); |
2e70f6ef PB |
4118 | if (!tb) { |
4119 | cpu_abort(env, "cpu_io_recompile: could not find TB for pc=%p", | |
20503968 | 4120 | (void *)retaddr); |
2e70f6ef PB |
4121 | } |
4122 | n = env->icount_decr.u16.low + tb->icount; | |
20503968 | 4123 | cpu_restore_state(tb, env, retaddr); |
2e70f6ef | 4124 | /* Calculate how many instructions had been executed before the fault |
bf20dc07 | 4125 | occurred. */ |
2e70f6ef PB |
4126 | n = n - env->icount_decr.u16.low; |
4127 | /* Generate a new TB ending on the I/O insn. */ | |
4128 | n++; | |
4129 | /* On MIPS and SH, delay slot instructions can only be restarted if | |
4130 | they were already the first instruction in the TB. If this is not | |
bf20dc07 | 4131 | the first instruction in a TB then re-execute the preceding |
2e70f6ef PB |
4132 | branch. */ |
4133 | #if defined(TARGET_MIPS) | |
4134 | if ((env->hflags & MIPS_HFLAG_BMASK) != 0 && n > 1) { | |
4135 | env->active_tc.PC -= 4; | |
4136 | env->icount_decr.u16.low++; | |
4137 | env->hflags &= ~MIPS_HFLAG_BMASK; | |
4138 | } | |
4139 | #elif defined(TARGET_SH4) | |
4140 | if ((env->flags & ((DELAY_SLOT | DELAY_SLOT_CONDITIONAL))) != 0 | |
4141 | && n > 1) { | |
4142 | env->pc -= 2; | |
4143 | env->icount_decr.u16.low++; | |
4144 | env->flags &= ~(DELAY_SLOT | DELAY_SLOT_CONDITIONAL); | |
4145 | } | |
4146 | #endif | |
4147 | /* This should never happen. */ | |
4148 | if (n > CF_COUNT_MASK) | |
4149 | cpu_abort(env, "TB too big during recompile"); | |
4150 | ||
4151 | cflags = n | CF_LAST_IO; | |
4152 | pc = tb->pc; | |
4153 | cs_base = tb->cs_base; | |
4154 | flags = tb->flags; | |
4155 | tb_phys_invalidate(tb, -1); | |
4156 | /* FIXME: In theory this could raise an exception. In practice | |
4157 | we have already translated the block once so it's probably ok. */ | |
4158 | tb_gen_code(env, pc, cs_base, flags, cflags); | |
bf20dc07 | 4159 | /* TODO: If env->pc != tb->pc (i.e. the faulting instruction was not |
2e70f6ef PB |
4160 | the first in the TB) then we end up generating a whole new TB and |
4161 | repeating the fault, which is horribly inefficient. | |
4162 | Better would be to execute just this insn uncached, or generate a | |
4163 | second new TB. */ | |
4164 | cpu_resume_from_signal(env, NULL); | |
4165 | } | |
4166 | ||
b3755a91 PB |
4167 | #if !defined(CONFIG_USER_ONLY) |
4168 | ||
055403b2 | 4169 | void dump_exec_info(FILE *f, fprintf_function cpu_fprintf) |
e3db7226 FB |
4170 | { |
4171 | int i, target_code_size, max_target_code_size; | |
4172 | int direct_jmp_count, direct_jmp2_count, cross_page; | |
4173 | TranslationBlock *tb; | |
3b46e624 | 4174 | |
e3db7226 FB |
4175 | target_code_size = 0; |
4176 | max_target_code_size = 0; | |
4177 | cross_page = 0; | |
4178 | direct_jmp_count = 0; | |
4179 | direct_jmp2_count = 0; | |
4180 | for(i = 0; i < nb_tbs; i++) { | |
4181 | tb = &tbs[i]; | |
4182 | target_code_size += tb->size; | |
4183 | if (tb->size > max_target_code_size) | |
4184 | max_target_code_size = tb->size; | |
4185 | if (tb->page_addr[1] != -1) | |
4186 | cross_page++; | |
4187 | if (tb->tb_next_offset[0] != 0xffff) { | |
4188 | direct_jmp_count++; | |
4189 | if (tb->tb_next_offset[1] != 0xffff) { | |
4190 | direct_jmp2_count++; | |
4191 | } | |
4192 | } | |
4193 | } | |
4194 | /* XXX: avoid using doubles ? */ | |
57fec1fe | 4195 | cpu_fprintf(f, "Translation buffer state:\n"); |
055403b2 | 4196 | cpu_fprintf(f, "gen code size %td/%ld\n", |
26a5f13b FB |
4197 | code_gen_ptr - code_gen_buffer, code_gen_buffer_max_size); |
4198 | cpu_fprintf(f, "TB count %d/%d\n", | |
4199 | nb_tbs, code_gen_max_blocks); | |
5fafdf24 | 4200 | cpu_fprintf(f, "TB avg target size %d max=%d bytes\n", |
e3db7226 FB |
4201 | nb_tbs ? target_code_size / nb_tbs : 0, |
4202 | max_target_code_size); | |
055403b2 | 4203 | cpu_fprintf(f, "TB avg host size %td bytes (expansion ratio: %0.1f)\n", |
e3db7226 FB |
4204 | nb_tbs ? (code_gen_ptr - code_gen_buffer) / nb_tbs : 0, |
4205 | target_code_size ? (double) (code_gen_ptr - code_gen_buffer) / target_code_size : 0); | |
5fafdf24 TS |
4206 | cpu_fprintf(f, "cross page TB count %d (%d%%)\n", |
4207 | cross_page, | |
e3db7226 FB |
4208 | nb_tbs ? (cross_page * 100) / nb_tbs : 0); |
4209 | cpu_fprintf(f, "direct jump count %d (%d%%) (2 jumps=%d %d%%)\n", | |
5fafdf24 | 4210 | direct_jmp_count, |
e3db7226 FB |
4211 | nb_tbs ? (direct_jmp_count * 100) / nb_tbs : 0, |
4212 | direct_jmp2_count, | |
4213 | nb_tbs ? (direct_jmp2_count * 100) / nb_tbs : 0); | |
57fec1fe | 4214 | cpu_fprintf(f, "\nStatistics:\n"); |
e3db7226 FB |
4215 | cpu_fprintf(f, "TB flush count %d\n", tb_flush_count); |
4216 | cpu_fprintf(f, "TB invalidate count %d\n", tb_phys_invalidate_count); | |
4217 | cpu_fprintf(f, "TLB flush count %d\n", tlb_flush_count); | |
b67d9a52 | 4218 | tcg_dump_info(f, cpu_fprintf); |
e3db7226 FB |
4219 | } |
4220 | ||
82afa586 BH |
4221 | /* |
4222 | * A helper function for the _utterly broken_ virtio device model to find out if | |
4223 | * it's running on a big endian machine. Don't do this at home kids! | |
4224 | */ | |
4225 | bool virtio_is_big_endian(void); | |
4226 | bool virtio_is_big_endian(void) | |
4227 | { | |
4228 | #if defined(TARGET_WORDS_BIGENDIAN) | |
4229 | return true; | |
4230 | #else | |
4231 | return false; | |
4232 | #endif | |
4233 | } | |
4234 | ||
61382a50 | 4235 | #endif |
76f35538 WC |
4236 | |
4237 | #ifndef CONFIG_USER_ONLY | |
4238 | bool cpu_physical_memory_is_io(target_phys_addr_t phys_addr) | |
4239 | { | |
4240 | MemoryRegionSection *section; | |
4241 | ||
4242 | section = phys_page_find(phys_addr >> TARGET_PAGE_BITS); | |
4243 | ||
4244 | return !(memory_region_is_ram(section->mr) || | |
4245 | memory_region_is_romd(section->mr)); | |
4246 | } | |
4247 | #endif |