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ad96090a BS |
1 | /* |
2 | * QEMU System Emulator | |
3 | * | |
4 | * Copyright (c) 2003-2008 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | #include <stdint.h> | |
25 | #include <stdarg.h> | |
b2e0a138 | 26 | #include <stdlib.h> |
ad96090a | 27 | #ifndef _WIN32 |
1c47cb16 | 28 | #include <sys/types.h> |
ad96090a BS |
29 | #include <sys/mman.h> |
30 | #endif | |
31 | #include "config.h" | |
32 | #include "monitor.h" | |
33 | #include "sysemu.h" | |
34 | #include "arch_init.h" | |
35 | #include "audio/audio.h" | |
36 | #include "hw/pc.h" | |
37 | #include "hw/pci.h" | |
38 | #include "hw/audiodev.h" | |
39 | #include "kvm.h" | |
40 | #include "migration.h" | |
41 | #include "net.h" | |
42 | #include "gdbstub.h" | |
43 | #include "hw/smbios.h" | |
86e775c6 | 44 | #include "exec-memory.h" |
302fe51b | 45 | #include "hw/pcspk.h" |
17ad9b35 | 46 | #include "qemu/page_cache.h" |
99afc91d | 47 | #include "qmp-commands.h" |
3c12193d | 48 | #include "trace.h" |
ad96090a | 49 | |
3a697f69 OW |
50 | #ifdef DEBUG_ARCH_INIT |
51 | #define DPRINTF(fmt, ...) \ | |
52 | do { fprintf(stdout, "arch_init: " fmt, ## __VA_ARGS__); } while (0) | |
53 | #else | |
54 | #define DPRINTF(fmt, ...) \ | |
55 | do { } while (0) | |
56 | #endif | |
57 | ||
ad96090a BS |
58 | #ifdef TARGET_SPARC |
59 | int graphic_width = 1024; | |
60 | int graphic_height = 768; | |
61 | int graphic_depth = 8; | |
62 | #else | |
63 | int graphic_width = 800; | |
64 | int graphic_height = 600; | |
65 | int graphic_depth = 15; | |
66 | #endif | |
67 | ||
ad96090a BS |
68 | |
69 | #if defined(TARGET_ALPHA) | |
70 | #define QEMU_ARCH QEMU_ARCH_ALPHA | |
71 | #elif defined(TARGET_ARM) | |
72 | #define QEMU_ARCH QEMU_ARCH_ARM | |
73 | #elif defined(TARGET_CRIS) | |
74 | #define QEMU_ARCH QEMU_ARCH_CRIS | |
75 | #elif defined(TARGET_I386) | |
76 | #define QEMU_ARCH QEMU_ARCH_I386 | |
77 | #elif defined(TARGET_M68K) | |
78 | #define QEMU_ARCH QEMU_ARCH_M68K | |
81ea0e13 MW |
79 | #elif defined(TARGET_LM32) |
80 | #define QEMU_ARCH QEMU_ARCH_LM32 | |
ad96090a BS |
81 | #elif defined(TARGET_MICROBLAZE) |
82 | #define QEMU_ARCH QEMU_ARCH_MICROBLAZE | |
83 | #elif defined(TARGET_MIPS) | |
84 | #define QEMU_ARCH QEMU_ARCH_MIPS | |
e67db06e JL |
85 | #elif defined(TARGET_OPENRISC) |
86 | #define QEMU_ARCH QEMU_ARCH_OPENRISC | |
ad96090a BS |
87 | #elif defined(TARGET_PPC) |
88 | #define QEMU_ARCH QEMU_ARCH_PPC | |
89 | #elif defined(TARGET_S390X) | |
90 | #define QEMU_ARCH QEMU_ARCH_S390X | |
91 | #elif defined(TARGET_SH4) | |
92 | #define QEMU_ARCH QEMU_ARCH_SH4 | |
93 | #elif defined(TARGET_SPARC) | |
94 | #define QEMU_ARCH QEMU_ARCH_SPARC | |
2328826b MF |
95 | #elif defined(TARGET_XTENSA) |
96 | #define QEMU_ARCH QEMU_ARCH_XTENSA | |
4f23a1e6 GX |
97 | #elif defined(TARGET_UNICORE32) |
98 | #define QEMU_ARCH QEMU_ARCH_UNICORE32 | |
ad96090a BS |
99 | #endif |
100 | ||
101 | const uint32_t arch_type = QEMU_ARCH; | |
102 | ||
103 | /***********************************************************/ | |
104 | /* ram save/restore */ | |
105 | ||
d20878d2 YT |
106 | #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */ |
107 | #define RAM_SAVE_FLAG_COMPRESS 0x02 | |
108 | #define RAM_SAVE_FLAG_MEM_SIZE 0x04 | |
109 | #define RAM_SAVE_FLAG_PAGE 0x08 | |
110 | #define RAM_SAVE_FLAG_EOS 0x10 | |
111 | #define RAM_SAVE_FLAG_CONTINUE 0x20 | |
17ad9b35 | 112 | #define RAM_SAVE_FLAG_XBZRLE 0x40 |
ad96090a | 113 | |
86003615 PB |
114 | #ifdef __ALTIVEC__ |
115 | #include <altivec.h> | |
116 | #define VECTYPE vector unsigned char | |
117 | #define SPLAT(p) vec_splat(vec_ld(0, p), 0) | |
118 | #define ALL_EQ(v1, v2) vec_all_eq(v1, v2) | |
f283edc4 AF |
119 | /* altivec.h may redefine the bool macro as vector type. |
120 | * Reset it to POSIX semantics. */ | |
121 | #undef bool | |
122 | #define bool _Bool | |
86003615 PB |
123 | #elif defined __SSE2__ |
124 | #include <emmintrin.h> | |
125 | #define VECTYPE __m128i | |
126 | #define SPLAT(p) _mm_set1_epi8(*(p)) | |
127 | #define ALL_EQ(v1, v2) (_mm_movemask_epi8(_mm_cmpeq_epi8(v1, v2)) == 0xFFFF) | |
128 | #else | |
129 | #define VECTYPE unsigned long | |
130 | #define SPLAT(p) (*(p) * (~0UL / 255)) | |
131 | #define ALL_EQ(v1, v2) ((v1) == (v2)) | |
132 | #endif | |
133 | ||
b5a8fe5e | 134 | |
756557de EH |
135 | static struct defconfig_file { |
136 | const char *filename; | |
f29a5614 EH |
137 | /* Indicates it is an user config file (disabled by -no-user-config) */ |
138 | bool userconfig; | |
756557de | 139 | } default_config_files[] = { |
f29a5614 EH |
140 | { CONFIG_QEMU_CONFDIR "/qemu.conf", true }, |
141 | { CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf", true }, | |
756557de EH |
142 | { NULL }, /* end of list */ |
143 | }; | |
144 | ||
145 | ||
f29a5614 | 146 | int qemu_read_default_config_files(bool userconfig) |
b5a8fe5e EH |
147 | { |
148 | int ret; | |
756557de | 149 | struct defconfig_file *f; |
b5a8fe5e | 150 | |
756557de | 151 | for (f = default_config_files; f->filename; f++) { |
f29a5614 EH |
152 | if (!userconfig && f->userconfig) { |
153 | continue; | |
154 | } | |
756557de EH |
155 | ret = qemu_read_config_file(f->filename); |
156 | if (ret < 0 && ret != -ENOENT) { | |
157 | return ret; | |
158 | } | |
b5a8fe5e | 159 | } |
756557de | 160 | |
b5a8fe5e EH |
161 | return 0; |
162 | } | |
163 | ||
86003615 | 164 | static int is_dup_page(uint8_t *page) |
ad96090a | 165 | { |
86003615 PB |
166 | VECTYPE *p = (VECTYPE *)page; |
167 | VECTYPE val = SPLAT(page); | |
ad96090a BS |
168 | int i; |
169 | ||
86003615 PB |
170 | for (i = 0; i < TARGET_PAGE_SIZE / sizeof(VECTYPE); i++) { |
171 | if (!ALL_EQ(val, p[i])) { | |
ad96090a BS |
172 | return 0; |
173 | } | |
174 | } | |
175 | ||
176 | return 1; | |
177 | } | |
178 | ||
17ad9b35 OW |
179 | /* struct contains XBZRLE cache and a static page |
180 | used by the compression */ | |
181 | static struct { | |
182 | /* buffer used for XBZRLE encoding */ | |
183 | uint8_t *encoded_buf; | |
184 | /* buffer for storing page content */ | |
185 | uint8_t *current_buf; | |
186 | /* buffer used for XBZRLE decoding */ | |
187 | uint8_t *decoded_buf; | |
188 | /* Cache for XBZRLE */ | |
189 | PageCache *cache; | |
190 | } XBZRLE = { | |
191 | .encoded_buf = NULL, | |
192 | .current_buf = NULL, | |
193 | .decoded_buf = NULL, | |
194 | .cache = NULL, | |
195 | }; | |
196 | ||
9e1ba4cc OW |
197 | |
198 | int64_t xbzrle_cache_resize(int64_t new_size) | |
199 | { | |
200 | if (XBZRLE.cache != NULL) { | |
201 | return cache_resize(XBZRLE.cache, new_size / TARGET_PAGE_SIZE) * | |
202 | TARGET_PAGE_SIZE; | |
203 | } | |
204 | return pow2floor(new_size); | |
205 | } | |
206 | ||
004d4c10 OW |
207 | /* accounting for migration statistics */ |
208 | typedef struct AccountingInfo { | |
209 | uint64_t dup_pages; | |
210 | uint64_t norm_pages; | |
211 | uint64_t iterations; | |
f36d55af OW |
212 | uint64_t xbzrle_bytes; |
213 | uint64_t xbzrle_pages; | |
214 | uint64_t xbzrle_cache_miss; | |
215 | uint64_t xbzrle_overflows; | |
004d4c10 OW |
216 | } AccountingInfo; |
217 | ||
218 | static AccountingInfo acct_info; | |
219 | ||
220 | static void acct_clear(void) | |
221 | { | |
222 | memset(&acct_info, 0, sizeof(acct_info)); | |
223 | } | |
224 | ||
225 | uint64_t dup_mig_bytes_transferred(void) | |
226 | { | |
227 | return acct_info.dup_pages * TARGET_PAGE_SIZE; | |
228 | } | |
229 | ||
230 | uint64_t dup_mig_pages_transferred(void) | |
231 | { | |
232 | return acct_info.dup_pages; | |
233 | } | |
234 | ||
235 | uint64_t norm_mig_bytes_transferred(void) | |
236 | { | |
237 | return acct_info.norm_pages * TARGET_PAGE_SIZE; | |
238 | } | |
239 | ||
240 | uint64_t norm_mig_pages_transferred(void) | |
241 | { | |
242 | return acct_info.norm_pages; | |
243 | } | |
244 | ||
f36d55af OW |
245 | uint64_t xbzrle_mig_bytes_transferred(void) |
246 | { | |
247 | return acct_info.xbzrle_bytes; | |
248 | } | |
249 | ||
250 | uint64_t xbzrle_mig_pages_transferred(void) | |
251 | { | |
252 | return acct_info.xbzrle_pages; | |
253 | } | |
254 | ||
255 | uint64_t xbzrle_mig_pages_cache_miss(void) | |
256 | { | |
257 | return acct_info.xbzrle_cache_miss; | |
258 | } | |
259 | ||
260 | uint64_t xbzrle_mig_pages_overflow(void) | |
261 | { | |
262 | return acct_info.xbzrle_overflows; | |
263 | } | |
264 | ||
0c51f43d OW |
265 | static void save_block_hdr(QEMUFile *f, RAMBlock *block, ram_addr_t offset, |
266 | int cont, int flag) | |
267 | { | |
268 | qemu_put_be64(f, offset | cont | flag); | |
269 | if (!cont) { | |
270 | qemu_put_byte(f, strlen(block->idstr)); | |
271 | qemu_put_buffer(f, (uint8_t *)block->idstr, | |
272 | strlen(block->idstr)); | |
273 | } | |
274 | ||
275 | } | |
276 | ||
17ad9b35 OW |
277 | #define ENCODING_FLAG_XBZRLE 0x1 |
278 | ||
279 | static int save_xbzrle_page(QEMUFile *f, uint8_t *current_data, | |
280 | ram_addr_t current_addr, RAMBlock *block, | |
dd051c72 | 281 | ram_addr_t offset, int cont, bool last_stage) |
17ad9b35 OW |
282 | { |
283 | int encoded_len = 0, bytes_sent = -1; | |
284 | uint8_t *prev_cached_page; | |
285 | ||
286 | if (!cache_is_cached(XBZRLE.cache, current_addr)) { | |
dd051c72 JQ |
287 | if (!last_stage) { |
288 | cache_insert(XBZRLE.cache, current_addr, | |
289 | g_memdup(current_data, TARGET_PAGE_SIZE)); | |
290 | } | |
f36d55af | 291 | acct_info.xbzrle_cache_miss++; |
17ad9b35 OW |
292 | return -1; |
293 | } | |
294 | ||
295 | prev_cached_page = get_cached_data(XBZRLE.cache, current_addr); | |
296 | ||
297 | /* save current buffer into memory */ | |
298 | memcpy(XBZRLE.current_buf, current_data, TARGET_PAGE_SIZE); | |
299 | ||
300 | /* XBZRLE encoding (if there is no overflow) */ | |
301 | encoded_len = xbzrle_encode_buffer(prev_cached_page, XBZRLE.current_buf, | |
302 | TARGET_PAGE_SIZE, XBZRLE.encoded_buf, | |
303 | TARGET_PAGE_SIZE); | |
304 | if (encoded_len == 0) { | |
305 | DPRINTF("Skipping unmodified page\n"); | |
306 | return 0; | |
307 | } else if (encoded_len == -1) { | |
308 | DPRINTF("Overflow\n"); | |
f36d55af | 309 | acct_info.xbzrle_overflows++; |
17ad9b35 OW |
310 | /* update data in the cache */ |
311 | memcpy(prev_cached_page, current_data, TARGET_PAGE_SIZE); | |
312 | return -1; | |
313 | } | |
314 | ||
315 | /* we need to update the data in the cache, in order to get the same data */ | |
dd051c72 JQ |
316 | if (!last_stage) { |
317 | memcpy(prev_cached_page, XBZRLE.current_buf, TARGET_PAGE_SIZE); | |
318 | } | |
17ad9b35 OW |
319 | |
320 | /* Send XBZRLE based compressed page */ | |
321 | save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_XBZRLE); | |
322 | qemu_put_byte(f, ENCODING_FLAG_XBZRLE); | |
323 | qemu_put_be16(f, encoded_len); | |
324 | qemu_put_buffer(f, XBZRLE.encoded_buf, encoded_len); | |
325 | bytes_sent = encoded_len + 1 + 2; | |
f36d55af OW |
326 | acct_info.xbzrle_pages++; |
327 | acct_info.xbzrle_bytes += bytes_sent; | |
17ad9b35 OW |
328 | |
329 | return bytes_sent; | |
330 | } | |
331 | ||
760e77ea AW |
332 | static RAMBlock *last_block; |
333 | static ram_addr_t last_offset; | |
334 | ||
69268cde JQ |
335 | static inline bool migration_bitmap_test_and_reset_dirty(MemoryRegion *mr, |
336 | ram_addr_t offset) | |
337 | { | |
338 | bool ret = memory_region_get_dirty(mr, offset, TARGET_PAGE_SIZE, | |
339 | DIRTY_MEMORY_MIGRATION); | |
340 | ||
341 | if (ret) { | |
342 | memory_region_reset_dirty(mr, offset, TARGET_PAGE_SIZE, | |
343 | DIRTY_MEMORY_MIGRATION); | |
344 | } | |
345 | return ret; | |
346 | } | |
347 | ||
e44d26c8 JQ |
348 | static inline void migration_bitmap_set_dirty(MemoryRegion *mr, int length) |
349 | { | |
350 | ram_addr_t addr; | |
351 | ||
352 | for (addr = 0; addr < length; addr += TARGET_PAGE_SIZE) { | |
353 | if (!memory_region_get_dirty(mr, addr, TARGET_PAGE_SIZE, | |
354 | DIRTY_MEMORY_MIGRATION)) { | |
355 | memory_region_set_dirty(mr, addr, TARGET_PAGE_SIZE); | |
356 | } | |
357 | } | |
358 | } | |
359 | ||
dd2df737 JQ |
360 | static void migration_bitmap_sync(void) |
361 | { | |
3c12193d JQ |
362 | uint64_t num_dirty_pages_init = ram_list.dirty_pages; |
363 | ||
364 | trace_migration_bitmap_sync_start(); | |
dd2df737 | 365 | memory_global_sync_dirty_bitmap(get_system_memory()); |
3c12193d JQ |
366 | trace_migration_bitmap_sync_end(ram_list.dirty_pages |
367 | - num_dirty_pages_init); | |
dd2df737 JQ |
368 | } |
369 | ||
370 | ||
6c779f22 OW |
371 | /* |
372 | * ram_save_block: Writes a page of memory to the stream f | |
373 | * | |
374 | * Returns: 0: if the page hasn't changed | |
375 | * -1: if there are no more dirty pages | |
376 | * n: the amount of bytes written in other case | |
377 | */ | |
378 | ||
dd051c72 | 379 | static int ram_save_block(QEMUFile *f, bool last_stage) |
ad96090a | 380 | { |
e44359c3 AW |
381 | RAMBlock *block = last_block; |
382 | ram_addr_t offset = last_offset; | |
6c779f22 | 383 | int bytes_sent = -1; |
71c510e2 | 384 | MemoryRegion *mr; |
17ad9b35 | 385 | ram_addr_t current_addr; |
ad96090a | 386 | |
e44359c3 AW |
387 | if (!block) |
388 | block = QLIST_FIRST(&ram_list.blocks); | |
389 | ||
e44359c3 | 390 | do { |
71c510e2 | 391 | mr = block->mr; |
69268cde | 392 | if (migration_bitmap_test_and_reset_dirty(mr, offset)) { |
ad96090a | 393 | uint8_t *p; |
a55bbe31 | 394 | int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0; |
ad96090a | 395 | |
71c510e2 | 396 | p = memory_region_get_ram_ptr(mr) + offset; |
ad96090a | 397 | |
86003615 | 398 | if (is_dup_page(p)) { |
004d4c10 | 399 | acct_info.dup_pages++; |
0c51f43d | 400 | save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_COMPRESS); |
ad96090a | 401 | qemu_put_byte(f, *p); |
3fc250b4 | 402 | bytes_sent = 1; |
17ad9b35 OW |
403 | } else if (migrate_use_xbzrle()) { |
404 | current_addr = block->offset + offset; | |
405 | bytes_sent = save_xbzrle_page(f, p, current_addr, block, | |
dd051c72 JQ |
406 | offset, cont, last_stage); |
407 | if (!last_stage) { | |
408 | p = get_cached_data(XBZRLE.cache, current_addr); | |
409 | } | |
17ad9b35 OW |
410 | } |
411 | ||
412 | /* either we didn't send yet (we may have had XBZRLE overflow) */ | |
413 | if (bytes_sent == -1) { | |
0c51f43d | 414 | save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_PAGE); |
ad96090a | 415 | qemu_put_buffer(f, p, TARGET_PAGE_SIZE); |
3fc250b4 | 416 | bytes_sent = TARGET_PAGE_SIZE; |
004d4c10 | 417 | acct_info.norm_pages++; |
ad96090a BS |
418 | } |
419 | ||
17ad9b35 OW |
420 | /* if page is unmodified, continue to the next */ |
421 | if (bytes_sent != 0) { | |
422 | break; | |
423 | } | |
ad96090a | 424 | } |
e44359c3 AW |
425 | |
426 | offset += TARGET_PAGE_SIZE; | |
427 | if (offset >= block->length) { | |
428 | offset = 0; | |
429 | block = QLIST_NEXT(block, next); | |
430 | if (!block) | |
431 | block = QLIST_FIRST(&ram_list.blocks); | |
432 | } | |
71c510e2 | 433 | } while (block != last_block || offset != last_offset); |
e44359c3 AW |
434 | |
435 | last_block = block; | |
436 | last_offset = offset; | |
ad96090a | 437 | |
3fc250b4 | 438 | return bytes_sent; |
ad96090a BS |
439 | } |
440 | ||
441 | static uint64_t bytes_transferred; | |
442 | ||
443 | static ram_addr_t ram_save_remaining(void) | |
444 | { | |
45f33f01 | 445 | return ram_list.dirty_pages; |
ad96090a BS |
446 | } |
447 | ||
448 | uint64_t ram_bytes_remaining(void) | |
449 | { | |
450 | return ram_save_remaining() * TARGET_PAGE_SIZE; | |
451 | } | |
452 | ||
453 | uint64_t ram_bytes_transferred(void) | |
454 | { | |
455 | return bytes_transferred; | |
456 | } | |
457 | ||
458 | uint64_t ram_bytes_total(void) | |
459 | { | |
d17b5288 AW |
460 | RAMBlock *block; |
461 | uint64_t total = 0; | |
462 | ||
463 | QLIST_FOREACH(block, &ram_list.blocks, next) | |
464 | total += block->length; | |
465 | ||
466 | return total; | |
ad96090a BS |
467 | } |
468 | ||
b2e0a138 MT |
469 | static int block_compar(const void *a, const void *b) |
470 | { | |
471 | RAMBlock * const *ablock = a; | |
472 | RAMBlock * const *bblock = b; | |
8fec98b4 AK |
473 | |
474 | return strcmp((*ablock)->idstr, (*bblock)->idstr); | |
b2e0a138 MT |
475 | } |
476 | ||
477 | static void sort_ram_list(void) | |
478 | { | |
479 | RAMBlock *block, *nblock, **blocks; | |
480 | int n; | |
481 | n = 0; | |
482 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
483 | ++n; | |
484 | } | |
7267c094 | 485 | blocks = g_malloc(n * sizeof *blocks); |
b2e0a138 MT |
486 | n = 0; |
487 | QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) { | |
488 | blocks[n++] = block; | |
489 | QLIST_REMOVE(block, next); | |
490 | } | |
491 | qsort(blocks, n, sizeof *blocks, block_compar); | |
492 | while (--n >= 0) { | |
493 | QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next); | |
494 | } | |
7267c094 | 495 | g_free(blocks); |
b2e0a138 MT |
496 | } |
497 | ||
8e21cd32 OW |
498 | static void migration_end(void) |
499 | { | |
500 | memory_global_dirty_log_stop(); | |
17ad9b35 OW |
501 | |
502 | if (migrate_use_xbzrle()) { | |
503 | cache_fini(XBZRLE.cache); | |
504 | g_free(XBZRLE.cache); | |
505 | g_free(XBZRLE.encoded_buf); | |
506 | g_free(XBZRLE.current_buf); | |
507 | g_free(XBZRLE.decoded_buf); | |
508 | XBZRLE.cache = NULL; | |
509 | } | |
8e21cd32 OW |
510 | } |
511 | ||
9b5bfab0 JQ |
512 | static void ram_migration_cancel(void *opaque) |
513 | { | |
514 | migration_end(); | |
515 | } | |
516 | ||
5a170775 JQ |
517 | |
518 | static void reset_ram_globals(void) | |
519 | { | |
520 | last_block = NULL; | |
521 | last_offset = 0; | |
522 | sort_ram_list(); | |
523 | } | |
524 | ||
4508bd9e JQ |
525 | #define MAX_WAIT 50 /* ms, half buffered_file limit */ |
526 | ||
d1315aac | 527 | static int ram_save_setup(QEMUFile *f, void *opaque) |
ad96090a | 528 | { |
d1315aac | 529 | RAMBlock *block; |
ad96090a | 530 | |
d1315aac | 531 | bytes_transferred = 0; |
5a170775 | 532 | reset_ram_globals(); |
ad96090a | 533 | |
17ad9b35 OW |
534 | if (migrate_use_xbzrle()) { |
535 | XBZRLE.cache = cache_init(migrate_xbzrle_cache_size() / | |
536 | TARGET_PAGE_SIZE, | |
537 | TARGET_PAGE_SIZE); | |
538 | if (!XBZRLE.cache) { | |
539 | DPRINTF("Error creating cache\n"); | |
540 | return -1; | |
541 | } | |
542 | XBZRLE.encoded_buf = g_malloc0(TARGET_PAGE_SIZE); | |
543 | XBZRLE.current_buf = g_malloc(TARGET_PAGE_SIZE); | |
004d4c10 | 544 | acct_clear(); |
17ad9b35 OW |
545 | } |
546 | ||
d1315aac JQ |
547 | /* Make sure all dirty bits are set */ |
548 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
e44d26c8 | 549 | migration_bitmap_set_dirty(block->mr, block->length); |
d1315aac | 550 | } |
ad96090a | 551 | |
d1315aac | 552 | memory_global_dirty_log_start(); |
79536f4f | 553 | memory_global_sync_dirty_bitmap(get_system_memory()); |
ad96090a | 554 | |
d1315aac | 555 | qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE); |
97ab12d4 | 556 | |
d1315aac JQ |
557 | QLIST_FOREACH(block, &ram_list.blocks, next) { |
558 | qemu_put_byte(f, strlen(block->idstr)); | |
559 | qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr)); | |
560 | qemu_put_be64(f, block->length); | |
ad96090a BS |
561 | } |
562 | ||
d1315aac JQ |
563 | qemu_put_be64(f, RAM_SAVE_FLAG_EOS); |
564 | ||
565 | return 0; | |
566 | } | |
567 | ||
16310a3c | 568 | static int ram_save_iterate(QEMUFile *f, void *opaque) |
d1315aac JQ |
569 | { |
570 | uint64_t bytes_transferred_last; | |
571 | double bwidth = 0; | |
572 | int ret; | |
573 | int i; | |
c00012f6 | 574 | uint64_t expected_downtime; |
2c52ddf1 | 575 | MigrationState *s = migrate_get_current(); |
d1315aac | 576 | |
ad96090a BS |
577 | bytes_transferred_last = bytes_transferred; |
578 | bwidth = qemu_get_clock_ns(rt_clock); | |
579 | ||
4508bd9e | 580 | i = 0; |
2975725f | 581 | while ((ret = qemu_file_rate_limit(f)) == 0) { |
3fc250b4 | 582 | int bytes_sent; |
ad96090a | 583 | |
dd051c72 | 584 | bytes_sent = ram_save_block(f, false); |
6c779f22 OW |
585 | /* no more blocks to sent */ |
586 | if (bytes_sent < 0) { | |
ad96090a BS |
587 | break; |
588 | } | |
6c779f22 | 589 | bytes_transferred += bytes_sent; |
004d4c10 | 590 | acct_info.iterations++; |
4508bd9e JQ |
591 | /* we want to check in the 1st loop, just in case it was the 1st time |
592 | and we had to sync the dirty bitmap. | |
593 | qemu_get_clock_ns() is a bit expensive, so we only check each some | |
594 | iterations | |
595 | */ | |
596 | if ((i & 63) == 0) { | |
597 | uint64_t t1 = (qemu_get_clock_ns(rt_clock) - bwidth) / 1000000; | |
598 | if (t1 > MAX_WAIT) { | |
ef37a699 | 599 | DPRINTF("big wait: %" PRIu64 " milliseconds, %d iterations\n", |
4508bd9e JQ |
600 | t1, i); |
601 | break; | |
602 | } | |
603 | } | |
604 | i++; | |
ad96090a BS |
605 | } |
606 | ||
2975725f JQ |
607 | if (ret < 0) { |
608 | return ret; | |
609 | } | |
610 | ||
ad96090a BS |
611 | bwidth = qemu_get_clock_ns(rt_clock) - bwidth; |
612 | bwidth = (bytes_transferred - bytes_transferred_last) / bwidth; | |
613 | ||
c00012f6 JQ |
614 | /* if we haven't transferred anything this round, force |
615 | * expected_downtime to a very high value, but without | |
616 | * crashing */ | |
ad96090a BS |
617 | if (bwidth == 0) { |
618 | bwidth = 0.000001; | |
619 | } | |
620 | ||
16310a3c JQ |
621 | qemu_put_be64(f, RAM_SAVE_FLAG_EOS); |
622 | ||
c00012f6 JQ |
623 | expected_downtime = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth; |
624 | DPRINTF("ram_save_live: expected(%" PRIu64 ") <= max(" PRIu64 ")?\n", | |
625 | expected_downtime, migrate_max_downtime()); | |
16310a3c | 626 | |
c00012f6 | 627 | if (expected_downtime <= migrate_max_downtime()) { |
dd2df737 | 628 | migration_bitmap_sync(); |
c00012f6 | 629 | expected_downtime = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth; |
2c52ddf1 | 630 | s->expected_downtime = expected_downtime / 1000000; /* ns -> ms */ |
00d94f3f | 631 | |
c00012f6 | 632 | return expected_downtime <= migrate_max_downtime(); |
00d94f3f JQ |
633 | } |
634 | return 0; | |
16310a3c JQ |
635 | } |
636 | ||
637 | static int ram_save_complete(QEMUFile *f, void *opaque) | |
638 | { | |
dd2df737 | 639 | migration_bitmap_sync(); |
16310a3c | 640 | |
ad96090a | 641 | /* try transferring iterative blocks of memory */ |
3a697f69 | 642 | |
16310a3c | 643 | /* flush all remaining blocks regardless of rate limiting */ |
6c779f22 | 644 | while (true) { |
3fc250b4 PR |
645 | int bytes_sent; |
646 | ||
dd051c72 | 647 | bytes_sent = ram_save_block(f, true); |
6c779f22 OW |
648 | /* no more blocks to sent */ |
649 | if (bytes_sent < 0) { | |
650 | break; | |
ad96090a | 651 | } |
16310a3c | 652 | bytes_transferred += bytes_sent; |
ad96090a | 653 | } |
16310a3c | 654 | memory_global_dirty_log_stop(); |
ad96090a BS |
655 | |
656 | qemu_put_be64(f, RAM_SAVE_FLAG_EOS); | |
657 | ||
5b3c9638 | 658 | return 0; |
ad96090a BS |
659 | } |
660 | ||
17ad9b35 OW |
661 | static int load_xbzrle(QEMUFile *f, ram_addr_t addr, void *host) |
662 | { | |
663 | int ret, rc = 0; | |
664 | unsigned int xh_len; | |
665 | int xh_flags; | |
666 | ||
667 | if (!XBZRLE.decoded_buf) { | |
668 | XBZRLE.decoded_buf = g_malloc(TARGET_PAGE_SIZE); | |
669 | } | |
670 | ||
671 | /* extract RLE header */ | |
672 | xh_flags = qemu_get_byte(f); | |
673 | xh_len = qemu_get_be16(f); | |
674 | ||
675 | if (xh_flags != ENCODING_FLAG_XBZRLE) { | |
676 | fprintf(stderr, "Failed to load XBZRLE page - wrong compression!\n"); | |
677 | return -1; | |
678 | } | |
679 | ||
680 | if (xh_len > TARGET_PAGE_SIZE) { | |
681 | fprintf(stderr, "Failed to load XBZRLE page - len overflow!\n"); | |
682 | return -1; | |
683 | } | |
684 | /* load data and decode */ | |
685 | qemu_get_buffer(f, XBZRLE.decoded_buf, xh_len); | |
686 | ||
687 | /* decode RLE */ | |
688 | ret = xbzrle_decode_buffer(XBZRLE.decoded_buf, xh_len, host, | |
689 | TARGET_PAGE_SIZE); | |
690 | if (ret == -1) { | |
691 | fprintf(stderr, "Failed to load XBZRLE page - decode error!\n"); | |
692 | rc = -1; | |
693 | } else if (ret > TARGET_PAGE_SIZE) { | |
694 | fprintf(stderr, "Failed to load XBZRLE page - size %d exceeds %d!\n", | |
695 | ret, TARGET_PAGE_SIZE); | |
696 | abort(); | |
697 | } | |
698 | ||
699 | return rc; | |
700 | } | |
701 | ||
a55bbe31 AW |
702 | static inline void *host_from_stream_offset(QEMUFile *f, |
703 | ram_addr_t offset, | |
704 | int flags) | |
705 | { | |
706 | static RAMBlock *block = NULL; | |
707 | char id[256]; | |
708 | uint8_t len; | |
709 | ||
710 | if (flags & RAM_SAVE_FLAG_CONTINUE) { | |
711 | if (!block) { | |
712 | fprintf(stderr, "Ack, bad migration stream!\n"); | |
713 | return NULL; | |
714 | } | |
715 | ||
dc94a7ed | 716 | return memory_region_get_ram_ptr(block->mr) + offset; |
a55bbe31 AW |
717 | } |
718 | ||
719 | len = qemu_get_byte(f); | |
720 | qemu_get_buffer(f, (uint8_t *)id, len); | |
721 | id[len] = 0; | |
722 | ||
723 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
724 | if (!strncmp(id, block->idstr, sizeof(id))) | |
dc94a7ed | 725 | return memory_region_get_ram_ptr(block->mr) + offset; |
a55bbe31 AW |
726 | } |
727 | ||
728 | fprintf(stderr, "Can't find block %s!\n", id); | |
729 | return NULL; | |
730 | } | |
731 | ||
7908c78d | 732 | static int ram_load(QEMUFile *f, void *opaque, int version_id) |
ad96090a BS |
733 | { |
734 | ram_addr_t addr; | |
3a697f69 | 735 | int flags, ret = 0; |
42802d47 | 736 | int error; |
3a697f69 OW |
737 | static uint64_t seq_iter; |
738 | ||
739 | seq_iter++; | |
ad96090a | 740 | |
f09f2189 | 741 | if (version_id < 4 || version_id > 4) { |
ad96090a BS |
742 | return -EINVAL; |
743 | } | |
744 | ||
745 | do { | |
746 | addr = qemu_get_be64(f); | |
747 | ||
748 | flags = addr & ~TARGET_PAGE_MASK; | |
749 | addr &= TARGET_PAGE_MASK; | |
750 | ||
751 | if (flags & RAM_SAVE_FLAG_MEM_SIZE) { | |
f09f2189 | 752 | if (version_id == 4) { |
97ab12d4 AW |
753 | /* Synchronize RAM block list */ |
754 | char id[256]; | |
755 | ram_addr_t length; | |
756 | ram_addr_t total_ram_bytes = addr; | |
757 | ||
758 | while (total_ram_bytes) { | |
759 | RAMBlock *block; | |
760 | uint8_t len; | |
761 | ||
762 | len = qemu_get_byte(f); | |
763 | qemu_get_buffer(f, (uint8_t *)id, len); | |
764 | id[len] = 0; | |
765 | length = qemu_get_be64(f); | |
766 | ||
767 | QLIST_FOREACH(block, &ram_list.blocks, next) { | |
768 | if (!strncmp(id, block->idstr, sizeof(id))) { | |
3a697f69 OW |
769 | if (block->length != length) { |
770 | ret = -EINVAL; | |
771 | goto done; | |
772 | } | |
97ab12d4 AW |
773 | break; |
774 | } | |
775 | } | |
776 | ||
777 | if (!block) { | |
fb787f81 AW |
778 | fprintf(stderr, "Unknown ramblock \"%s\", cannot " |
779 | "accept migration\n", id); | |
3a697f69 OW |
780 | ret = -EINVAL; |
781 | goto done; | |
97ab12d4 AW |
782 | } |
783 | ||
784 | total_ram_bytes -= length; | |
785 | } | |
ad96090a BS |
786 | } |
787 | } | |
788 | ||
789 | if (flags & RAM_SAVE_FLAG_COMPRESS) { | |
97ab12d4 AW |
790 | void *host; |
791 | uint8_t ch; | |
792 | ||
f09f2189 | 793 | host = host_from_stream_offset(f, addr, flags); |
492fb99c MT |
794 | if (!host) { |
795 | return -EINVAL; | |
796 | } | |
97ab12d4 | 797 | |
97ab12d4 AW |
798 | ch = qemu_get_byte(f); |
799 | memset(host, ch, TARGET_PAGE_SIZE); | |
ad96090a BS |
800 | #ifndef _WIN32 |
801 | if (ch == 0 && | |
802 | (!kvm_enabled() || kvm_has_sync_mmu())) { | |
e78815a5 | 803 | qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED); |
ad96090a BS |
804 | } |
805 | #endif | |
806 | } else if (flags & RAM_SAVE_FLAG_PAGE) { | |
97ab12d4 AW |
807 | void *host; |
808 | ||
f09f2189 | 809 | host = host_from_stream_offset(f, addr, flags); |
0ff1f9f5 OW |
810 | if (!host) { |
811 | return -EINVAL; | |
812 | } | |
97ab12d4 | 813 | |
97ab12d4 | 814 | qemu_get_buffer(f, host, TARGET_PAGE_SIZE); |
17ad9b35 OW |
815 | } else if (flags & RAM_SAVE_FLAG_XBZRLE) { |
816 | if (!migrate_use_xbzrle()) { | |
817 | return -EINVAL; | |
818 | } | |
819 | void *host = host_from_stream_offset(f, addr, flags); | |
820 | if (!host) { | |
821 | return -EINVAL; | |
822 | } | |
823 | ||
824 | if (load_xbzrle(f, addr, host) < 0) { | |
825 | ret = -EINVAL; | |
826 | goto done; | |
827 | } | |
ad96090a | 828 | } |
42802d47 JQ |
829 | error = qemu_file_get_error(f); |
830 | if (error) { | |
3a697f69 OW |
831 | ret = error; |
832 | goto done; | |
ad96090a BS |
833 | } |
834 | } while (!(flags & RAM_SAVE_FLAG_EOS)); | |
835 | ||
3a697f69 | 836 | done: |
ef37a699 IM |
837 | DPRINTF("Completed load of VM with exit code %d seq iteration " |
838 | "%" PRIu64 "\n", ret, seq_iter); | |
3a697f69 | 839 | return ret; |
ad96090a BS |
840 | } |
841 | ||
7908c78d | 842 | SaveVMHandlers savevm_ram_handlers = { |
d1315aac | 843 | .save_live_setup = ram_save_setup, |
16310a3c JQ |
844 | .save_live_iterate = ram_save_iterate, |
845 | .save_live_complete = ram_save_complete, | |
7908c78d | 846 | .load_state = ram_load, |
9b5bfab0 | 847 | .cancel = ram_migration_cancel, |
7908c78d JQ |
848 | }; |
849 | ||
ad96090a | 850 | #ifdef HAS_AUDIO |
0dfa5ef9 IY |
851 | struct soundhw { |
852 | const char *name; | |
853 | const char *descr; | |
854 | int enabled; | |
855 | int isa; | |
856 | union { | |
4a0f031d | 857 | int (*init_isa) (ISABus *bus); |
0dfa5ef9 IY |
858 | int (*init_pci) (PCIBus *bus); |
859 | } init; | |
860 | }; | |
861 | ||
862 | static struct soundhw soundhw[] = { | |
ad96090a | 863 | #ifdef HAS_AUDIO_CHOICE |
da12872a | 864 | #ifdef CONFIG_PCSPK |
ad96090a BS |
865 | { |
866 | "pcspk", | |
867 | "PC speaker", | |
868 | 0, | |
869 | 1, | |
870 | { .init_isa = pcspk_audio_init } | |
871 | }, | |
872 | #endif | |
873 | ||
874 | #ifdef CONFIG_SB16 | |
875 | { | |
876 | "sb16", | |
877 | "Creative Sound Blaster 16", | |
878 | 0, | |
879 | 1, | |
880 | { .init_isa = SB16_init } | |
881 | }, | |
882 | #endif | |
883 | ||
884 | #ifdef CONFIG_CS4231A | |
885 | { | |
886 | "cs4231a", | |
887 | "CS4231A", | |
888 | 0, | |
889 | 1, | |
890 | { .init_isa = cs4231a_init } | |
891 | }, | |
892 | #endif | |
893 | ||
894 | #ifdef CONFIG_ADLIB | |
895 | { | |
896 | "adlib", | |
897 | #ifdef HAS_YMF262 | |
898 | "Yamaha YMF262 (OPL3)", | |
899 | #else | |
900 | "Yamaha YM3812 (OPL2)", | |
901 | #endif | |
902 | 0, | |
903 | 1, | |
904 | { .init_isa = Adlib_init } | |
905 | }, | |
906 | #endif | |
907 | ||
908 | #ifdef CONFIG_GUS | |
909 | { | |
910 | "gus", | |
911 | "Gravis Ultrasound GF1", | |
912 | 0, | |
913 | 1, | |
914 | { .init_isa = GUS_init } | |
915 | }, | |
916 | #endif | |
917 | ||
918 | #ifdef CONFIG_AC97 | |
919 | { | |
920 | "ac97", | |
921 | "Intel 82801AA AC97 Audio", | |
922 | 0, | |
923 | 0, | |
924 | { .init_pci = ac97_init } | |
925 | }, | |
926 | #endif | |
927 | ||
928 | #ifdef CONFIG_ES1370 | |
929 | { | |
930 | "es1370", | |
931 | "ENSONIQ AudioPCI ES1370", | |
932 | 0, | |
933 | 0, | |
934 | { .init_pci = es1370_init } | |
935 | }, | |
936 | #endif | |
937 | ||
d61a4ce8 GH |
938 | #ifdef CONFIG_HDA |
939 | { | |
940 | "hda", | |
941 | "Intel HD Audio", | |
942 | 0, | |
943 | 0, | |
944 | { .init_pci = intel_hda_and_codec_init } | |
945 | }, | |
946 | #endif | |
947 | ||
ad96090a BS |
948 | #endif /* HAS_AUDIO_CHOICE */ |
949 | ||
950 | { NULL, NULL, 0, 0, { NULL } } | |
951 | }; | |
952 | ||
953 | void select_soundhw(const char *optarg) | |
954 | { | |
955 | struct soundhw *c; | |
956 | ||
c8057f95 | 957 | if (is_help_option(optarg)) { |
ad96090a BS |
958 | show_valid_cards: |
959 | ||
55d4fd3c | 960 | #ifdef HAS_AUDIO_CHOICE |
ad96090a BS |
961 | printf("Valid sound card names (comma separated):\n"); |
962 | for (c = soundhw; c->name; ++c) { | |
963 | printf ("%-11s %s\n", c->name, c->descr); | |
964 | } | |
965 | printf("\n-soundhw all will enable all of the above\n"); | |
55d4fd3c PM |
966 | #else |
967 | printf("Machine has no user-selectable audio hardware " | |
968 | "(it may or may not have always-present audio hardware).\n"); | |
969 | #endif | |
c8057f95 | 970 | exit(!is_help_option(optarg)); |
ad96090a BS |
971 | } |
972 | else { | |
973 | size_t l; | |
974 | const char *p; | |
975 | char *e; | |
976 | int bad_card = 0; | |
977 | ||
978 | if (!strcmp(optarg, "all")) { | |
979 | for (c = soundhw; c->name; ++c) { | |
980 | c->enabled = 1; | |
981 | } | |
982 | return; | |
983 | } | |
984 | ||
985 | p = optarg; | |
986 | while (*p) { | |
987 | e = strchr(p, ','); | |
988 | l = !e ? strlen(p) : (size_t) (e - p); | |
989 | ||
990 | for (c = soundhw; c->name; ++c) { | |
991 | if (!strncmp(c->name, p, l) && !c->name[l]) { | |
992 | c->enabled = 1; | |
993 | break; | |
994 | } | |
995 | } | |
996 | ||
997 | if (!c->name) { | |
998 | if (l > 80) { | |
999 | fprintf(stderr, | |
1000 | "Unknown sound card name (too big to show)\n"); | |
1001 | } | |
1002 | else { | |
1003 | fprintf(stderr, "Unknown sound card name `%.*s'\n", | |
1004 | (int) l, p); | |
1005 | } | |
1006 | bad_card = 1; | |
1007 | } | |
1008 | p += l + (e != NULL); | |
1009 | } | |
1010 | ||
1011 | if (bad_card) { | |
1012 | goto show_valid_cards; | |
1013 | } | |
1014 | } | |
1015 | } | |
0dfa5ef9 | 1016 | |
4a0f031d | 1017 | void audio_init(ISABus *isa_bus, PCIBus *pci_bus) |
0dfa5ef9 IY |
1018 | { |
1019 | struct soundhw *c; | |
1020 | ||
1021 | for (c = soundhw; c->name; ++c) { | |
1022 | if (c->enabled) { | |
1023 | if (c->isa) { | |
4a0f031d HP |
1024 | if (isa_bus) { |
1025 | c->init.init_isa(isa_bus); | |
0dfa5ef9 IY |
1026 | } |
1027 | } else { | |
1028 | if (pci_bus) { | |
1029 | c->init.init_pci(pci_bus); | |
1030 | } | |
1031 | } | |
1032 | } | |
1033 | } | |
1034 | } | |
ad96090a BS |
1035 | #else |
1036 | void select_soundhw(const char *optarg) | |
1037 | { | |
1038 | } | |
4a0f031d | 1039 | void audio_init(ISABus *isa_bus, PCIBus *pci_bus) |
0dfa5ef9 IY |
1040 | { |
1041 | } | |
ad96090a BS |
1042 | #endif |
1043 | ||
1044 | int qemu_uuid_parse(const char *str, uint8_t *uuid) | |
1045 | { | |
1046 | int ret; | |
1047 | ||
1048 | if (strlen(str) != 36) { | |
1049 | return -1; | |
1050 | } | |
1051 | ||
1052 | ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3], | |
1053 | &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9], | |
1054 | &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], | |
1055 | &uuid[15]); | |
1056 | ||
1057 | if (ret != 16) { | |
1058 | return -1; | |
1059 | } | |
1060 | #ifdef TARGET_I386 | |
1061 | smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid); | |
1062 | #endif | |
1063 | return 0; | |
1064 | } | |
1065 | ||
1066 | void do_acpitable_option(const char *optarg) | |
1067 | { | |
1068 | #ifdef TARGET_I386 | |
1069 | if (acpi_table_add(optarg) < 0) { | |
1070 | fprintf(stderr, "Wrong acpi table provided\n"); | |
1071 | exit(1); | |
1072 | } | |
1073 | #endif | |
1074 | } | |
1075 | ||
1076 | void do_smbios_option(const char *optarg) | |
1077 | { | |
1078 | #ifdef TARGET_I386 | |
1079 | if (smbios_entry_add(optarg) < 0) { | |
1080 | fprintf(stderr, "Wrong smbios provided\n"); | |
1081 | exit(1); | |
1082 | } | |
1083 | #endif | |
1084 | } | |
1085 | ||
1086 | void cpudef_init(void) | |
1087 | { | |
1088 | #if defined(cpudef_setup) | |
1089 | cpudef_setup(); /* parse cpu definitions in target config file */ | |
1090 | #endif | |
1091 | } | |
1092 | ||
1093 | int audio_available(void) | |
1094 | { | |
1095 | #ifdef HAS_AUDIO | |
1096 | return 1; | |
1097 | #else | |
1098 | return 0; | |
1099 | #endif | |
1100 | } | |
1101 | ||
303d4e86 AP |
1102 | int tcg_available(void) |
1103 | { | |
1104 | return 1; | |
1105 | } | |
1106 | ||
ad96090a BS |
1107 | int kvm_available(void) |
1108 | { | |
1109 | #ifdef CONFIG_KVM | |
1110 | return 1; | |
1111 | #else | |
1112 | return 0; | |
1113 | #endif | |
1114 | } | |
1115 | ||
1116 | int xen_available(void) | |
1117 | { | |
1118 | #ifdef CONFIG_XEN | |
1119 | return 1; | |
1120 | #else | |
1121 | return 0; | |
1122 | #endif | |
1123 | } | |
99afc91d DB |
1124 | |
1125 | ||
1126 | TargetInfo *qmp_query_target(Error **errp) | |
1127 | { | |
1128 | TargetInfo *info = g_malloc0(sizeof(*info)); | |
1129 | ||
1130 | info->arch = TARGET_TYPE; | |
1131 | ||
1132 | return info; | |
1133 | } |