4 * Copyright (c) 2003-2008 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
28 #include <sys/types.h>
32 #include "monitor/monitor.h"
33 #include "sysemu/sysemu.h"
34 #include "qemu/bitops.h"
35 #include "qemu/bitmap.h"
36 #include "sysemu/arch_init.h"
37 #include "audio/audio.h"
39 #include "hw/pci/pci.h"
40 #include "hw/audiodev.h"
41 #include "sysemu/kvm.h"
42 #include "migration/migration.h"
43 #include "exec/gdbstub.h"
44 #include "hw/smbios.h"
45 #include "exec/address-spaces.h"
47 #include "migration/page_cache.h"
48 #include "qemu/config-file.h"
49 #include "qmp-commands.h"
51 #include "exec/cpu-all.h"
53 #ifdef DEBUG_ARCH_INIT
54 #define DPRINTF(fmt, ...) \
55 do { fprintf(stdout, "arch_init: " fmt, ## __VA_ARGS__); } while (0)
57 #define DPRINTF(fmt, ...) \
62 int graphic_width
= 1024;
63 int graphic_height
= 768;
64 int graphic_depth
= 8;
66 int graphic_width
= 800;
67 int graphic_height
= 600;
68 int graphic_depth
= 15;
72 #if defined(TARGET_ALPHA)
73 #define QEMU_ARCH QEMU_ARCH_ALPHA
74 #elif defined(TARGET_ARM)
75 #define QEMU_ARCH QEMU_ARCH_ARM
76 #elif defined(TARGET_CRIS)
77 #define QEMU_ARCH QEMU_ARCH_CRIS
78 #elif defined(TARGET_I386)
79 #define QEMU_ARCH QEMU_ARCH_I386
80 #elif defined(TARGET_M68K)
81 #define QEMU_ARCH QEMU_ARCH_M68K
82 #elif defined(TARGET_LM32)
83 #define QEMU_ARCH QEMU_ARCH_LM32
84 #elif defined(TARGET_MICROBLAZE)
85 #define QEMU_ARCH QEMU_ARCH_MICROBLAZE
86 #elif defined(TARGET_MIPS)
87 #define QEMU_ARCH QEMU_ARCH_MIPS
88 #elif defined(TARGET_OPENRISC)
89 #define QEMU_ARCH QEMU_ARCH_OPENRISC
90 #elif defined(TARGET_PPC)
91 #define QEMU_ARCH QEMU_ARCH_PPC
92 #elif defined(TARGET_S390X)
93 #define QEMU_ARCH QEMU_ARCH_S390X
94 #elif defined(TARGET_SH4)
95 #define QEMU_ARCH QEMU_ARCH_SH4
96 #elif defined(TARGET_SPARC)
97 #define QEMU_ARCH QEMU_ARCH_SPARC
98 #elif defined(TARGET_XTENSA)
99 #define QEMU_ARCH QEMU_ARCH_XTENSA
100 #elif defined(TARGET_UNICORE32)
101 #define QEMU_ARCH QEMU_ARCH_UNICORE32
104 const uint32_t arch_type
= QEMU_ARCH
;
106 /***********************************************************/
107 /* ram save/restore */
109 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
110 #define RAM_SAVE_FLAG_COMPRESS 0x02
111 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
112 #define RAM_SAVE_FLAG_PAGE 0x08
113 #define RAM_SAVE_FLAG_EOS 0x10
114 #define RAM_SAVE_FLAG_CONTINUE 0x20
115 #define RAM_SAVE_FLAG_XBZRLE 0x40
119 #define VECTYPE vector unsigned char
120 #define SPLAT(p) vec_splat(vec_ld(0, p), 0)
121 #define ALL_EQ(v1, v2) vec_all_eq(v1, v2)
122 /* altivec.h may redefine the bool macro as vector type.
123 * Reset it to POSIX semantics. */
126 #elif defined __SSE2__
127 #include <emmintrin.h>
128 #define VECTYPE __m128i
129 #define SPLAT(p) _mm_set1_epi8(*(p))
130 #define ALL_EQ(v1, v2) (_mm_movemask_epi8(_mm_cmpeq_epi8(v1, v2)) == 0xFFFF)
132 #define VECTYPE unsigned long
133 #define SPLAT(p) (*(p) * (~0UL / 255))
134 #define ALL_EQ(v1, v2) ((v1) == (v2))
138 static struct defconfig_file
{
139 const char *filename
;
140 /* Indicates it is an user config file (disabled by -no-user-config) */
142 } default_config_files
[] = {
143 { CONFIG_QEMU_CONFDIR
"/qemu.conf", true },
144 { CONFIG_QEMU_CONFDIR
"/target-" TARGET_ARCH
".conf", true },
145 { NULL
}, /* end of list */
149 int qemu_read_default_config_files(bool userconfig
)
152 struct defconfig_file
*f
;
154 for (f
= default_config_files
; f
->filename
; f
++) {
155 if (!userconfig
&& f
->userconfig
) {
158 ret
= qemu_read_config_file(f
->filename
);
159 if (ret
< 0 && ret
!= -ENOENT
) {
167 static int is_dup_page(uint8_t *page
)
169 VECTYPE
*p
= (VECTYPE
*)page
;
170 VECTYPE val
= SPLAT(page
);
173 for (i
= 0; i
< TARGET_PAGE_SIZE
/ sizeof(VECTYPE
); i
++) {
174 if (!ALL_EQ(val
, p
[i
])) {
182 /* struct contains XBZRLE cache and a static page
183 used by the compression */
185 /* buffer used for XBZRLE encoding */
186 uint8_t *encoded_buf
;
187 /* buffer for storing page content */
188 uint8_t *current_buf
;
189 /* buffer used for XBZRLE decoding */
190 uint8_t *decoded_buf
;
191 /* Cache for XBZRLE */
201 int64_t xbzrle_cache_resize(int64_t new_size
)
203 if (XBZRLE
.cache
!= NULL
) {
204 return cache_resize(XBZRLE
.cache
, new_size
/ TARGET_PAGE_SIZE
) *
207 return pow2floor(new_size
);
210 /* accounting for migration statistics */
211 typedef struct AccountingInfo
{
215 uint64_t xbzrle_bytes
;
216 uint64_t xbzrle_pages
;
217 uint64_t xbzrle_cache_miss
;
218 uint64_t xbzrle_overflows
;
221 static AccountingInfo acct_info
;
223 static void acct_clear(void)
225 memset(&acct_info
, 0, sizeof(acct_info
));
228 uint64_t dup_mig_bytes_transferred(void)
230 return acct_info
.dup_pages
* TARGET_PAGE_SIZE
;
233 uint64_t dup_mig_pages_transferred(void)
235 return acct_info
.dup_pages
;
238 uint64_t norm_mig_bytes_transferred(void)
240 return acct_info
.norm_pages
* TARGET_PAGE_SIZE
;
243 uint64_t norm_mig_pages_transferred(void)
245 return acct_info
.norm_pages
;
248 uint64_t xbzrle_mig_bytes_transferred(void)
250 return acct_info
.xbzrle_bytes
;
253 uint64_t xbzrle_mig_pages_transferred(void)
255 return acct_info
.xbzrle_pages
;
258 uint64_t xbzrle_mig_pages_cache_miss(void)
260 return acct_info
.xbzrle_cache_miss
;
263 uint64_t xbzrle_mig_pages_overflow(void)
265 return acct_info
.xbzrle_overflows
;
268 static size_t save_block_hdr(QEMUFile
*f
, RAMBlock
*block
, ram_addr_t offset
,
273 qemu_put_be64(f
, offset
| cont
| flag
);
277 qemu_put_byte(f
, strlen(block
->idstr
));
278 qemu_put_buffer(f
, (uint8_t *)block
->idstr
,
279 strlen(block
->idstr
));
280 size
+= 1 + strlen(block
->idstr
);
285 #define ENCODING_FLAG_XBZRLE 0x1
287 static int save_xbzrle_page(QEMUFile
*f
, uint8_t *current_data
,
288 ram_addr_t current_addr
, RAMBlock
*block
,
289 ram_addr_t offset
, int cont
, bool last_stage
)
291 int encoded_len
= 0, bytes_sent
= -1;
292 uint8_t *prev_cached_page
;
294 if (!cache_is_cached(XBZRLE
.cache
, current_addr
)) {
296 cache_insert(XBZRLE
.cache
, current_addr
,
297 g_memdup(current_data
, TARGET_PAGE_SIZE
));
299 acct_info
.xbzrle_cache_miss
++;
303 prev_cached_page
= get_cached_data(XBZRLE
.cache
, current_addr
);
305 /* save current buffer into memory */
306 memcpy(XBZRLE
.current_buf
, current_data
, TARGET_PAGE_SIZE
);
308 /* XBZRLE encoding (if there is no overflow) */
309 encoded_len
= xbzrle_encode_buffer(prev_cached_page
, XBZRLE
.current_buf
,
310 TARGET_PAGE_SIZE
, XBZRLE
.encoded_buf
,
312 if (encoded_len
== 0) {
313 DPRINTF("Skipping unmodified page\n");
315 } else if (encoded_len
== -1) {
316 DPRINTF("Overflow\n");
317 acct_info
.xbzrle_overflows
++;
318 /* update data in the cache */
319 memcpy(prev_cached_page
, current_data
, TARGET_PAGE_SIZE
);
323 /* we need to update the data in the cache, in order to get the same data */
325 memcpy(prev_cached_page
, XBZRLE
.current_buf
, TARGET_PAGE_SIZE
);
328 /* Send XBZRLE based compressed page */
329 bytes_sent
= save_block_hdr(f
, block
, offset
, cont
, RAM_SAVE_FLAG_XBZRLE
);
330 qemu_put_byte(f
, ENCODING_FLAG_XBZRLE
);
331 qemu_put_be16(f
, encoded_len
);
332 qemu_put_buffer(f
, XBZRLE
.encoded_buf
, encoded_len
);
333 bytes_sent
+= encoded_len
+ 1 + 2;
334 acct_info
.xbzrle_pages
++;
335 acct_info
.xbzrle_bytes
+= bytes_sent
;
341 /* This is the last block that we have visited serching for dirty pages
343 static RAMBlock
*last_seen_block
;
344 /* This is the last block from where we have sent data */
345 static RAMBlock
*last_sent_block
;
346 static ram_addr_t last_offset
;
347 static unsigned long *migration_bitmap
;
348 static uint64_t migration_dirty_pages
;
349 static uint32_t last_version
;
352 ram_addr_t
migration_bitmap_find_and_reset_dirty(MemoryRegion
*mr
,
355 unsigned long base
= mr
->ram_addr
>> TARGET_PAGE_BITS
;
356 unsigned long nr
= base
+ (start
>> TARGET_PAGE_BITS
);
357 unsigned long size
= base
+ (int128_get64(mr
->size
) >> TARGET_PAGE_BITS
);
359 unsigned long next
= find_next_bit(migration_bitmap
, size
, nr
);
362 clear_bit(next
, migration_bitmap
);
363 migration_dirty_pages
--;
365 return (next
- base
) << TARGET_PAGE_BITS
;
368 static inline bool migration_bitmap_set_dirty(MemoryRegion
*mr
,
372 int nr
= (mr
->ram_addr
+ offset
) >> TARGET_PAGE_BITS
;
374 ret
= test_and_set_bit(nr
, migration_bitmap
);
377 migration_dirty_pages
++;
382 /* Needs iothread lock! */
384 static void migration_bitmap_sync(void)
388 uint64_t num_dirty_pages_init
= migration_dirty_pages
;
389 MigrationState
*s
= migrate_get_current();
390 static int64_t start_time
;
391 static int64_t num_dirty_pages_period
;
395 start_time
= qemu_get_clock_ms(rt_clock
);
398 trace_migration_bitmap_sync_start();
399 memory_global_sync_dirty_bitmap(get_system_memory());
401 QTAILQ_FOREACH(block
, &ram_list
.blocks
, next
) {
402 for (addr
= 0; addr
< block
->length
; addr
+= TARGET_PAGE_SIZE
) {
403 if (memory_region_test_and_clear_dirty(block
->mr
,
404 addr
, TARGET_PAGE_SIZE
,
405 DIRTY_MEMORY_MIGRATION
)) {
406 migration_bitmap_set_dirty(block
->mr
, addr
);
410 trace_migration_bitmap_sync_end(migration_dirty_pages
411 - num_dirty_pages_init
);
412 num_dirty_pages_period
+= migration_dirty_pages
- num_dirty_pages_init
;
413 end_time
= qemu_get_clock_ms(rt_clock
);
415 /* more than 1 second = 1000 millisecons */
416 if (end_time
> start_time
+ 1000) {
417 s
->dirty_pages_rate
= num_dirty_pages_period
* 1000
418 / (end_time
- start_time
);
419 s
->dirty_bytes_rate
= s
->dirty_pages_rate
* TARGET_PAGE_SIZE
;
420 start_time
= end_time
;
421 num_dirty_pages_period
= 0;
426 * ram_save_block: Writes a page of memory to the stream f
428 * Returns: The number of bytes written.
429 * 0 means no dirty pages
432 static int ram_save_block(QEMUFile
*f
, bool last_stage
)
434 RAMBlock
*block
= last_seen_block
;
435 ram_addr_t offset
= last_offset
;
436 bool complete_round
= false;
439 ram_addr_t current_addr
;
442 block
= QTAILQ_FIRST(&ram_list
.blocks
);
446 offset
= migration_bitmap_find_and_reset_dirty(mr
, offset
);
447 if (complete_round
&& block
== last_seen_block
&&
448 offset
>= last_offset
) {
451 if (offset
>= block
->length
) {
453 block
= QTAILQ_NEXT(block
, next
);
455 block
= QTAILQ_FIRST(&ram_list
.blocks
);
456 complete_round
= true;
460 int cont
= (block
== last_sent_block
) ?
461 RAM_SAVE_FLAG_CONTINUE
: 0;
463 p
= memory_region_get_ram_ptr(mr
) + offset
;
465 /* In doubt sent page as normal */
467 if (is_dup_page(p
)) {
468 acct_info
.dup_pages
++;
469 bytes_sent
= save_block_hdr(f
, block
, offset
, cont
,
470 RAM_SAVE_FLAG_COMPRESS
);
471 qemu_put_byte(f
, *p
);
473 } else if (migrate_use_xbzrle()) {
474 current_addr
= block
->offset
+ offset
;
475 bytes_sent
= save_xbzrle_page(f
, p
, current_addr
, block
,
476 offset
, cont
, last_stage
);
478 p
= get_cached_data(XBZRLE
.cache
, current_addr
);
482 /* XBZRLE overflow or normal page */
483 if (bytes_sent
== -1) {
484 bytes_sent
= save_block_hdr(f
, block
, offset
, cont
, RAM_SAVE_FLAG_PAGE
);
485 qemu_put_buffer(f
, p
, TARGET_PAGE_SIZE
);
486 bytes_sent
+= TARGET_PAGE_SIZE
;
487 acct_info
.norm_pages
++;
490 /* if page is unmodified, continue to the next */
491 if (bytes_sent
> 0) {
492 last_sent_block
= block
;
497 last_seen_block
= block
;
498 last_offset
= offset
;
503 static uint64_t bytes_transferred
;
505 static ram_addr_t
ram_save_remaining(void)
507 return migration_dirty_pages
;
510 uint64_t ram_bytes_remaining(void)
512 return ram_save_remaining() * TARGET_PAGE_SIZE
;
515 uint64_t ram_bytes_transferred(void)
517 return bytes_transferred
;
520 uint64_t ram_bytes_total(void)
525 QTAILQ_FOREACH(block
, &ram_list
.blocks
, next
)
526 total
+= block
->length
;
531 static void migration_end(void)
533 if (migration_bitmap
) {
534 memory_global_dirty_log_stop();
535 g_free(migration_bitmap
);
536 migration_bitmap
= NULL
;
540 cache_fini(XBZRLE
.cache
);
541 g_free(XBZRLE
.cache
);
542 g_free(XBZRLE
.encoded_buf
);
543 g_free(XBZRLE
.current_buf
);
544 g_free(XBZRLE
.decoded_buf
);
549 static void ram_migration_cancel(void *opaque
)
554 static void reset_ram_globals(void)
556 last_seen_block
= NULL
;
557 last_sent_block
= NULL
;
559 last_version
= ram_list
.version
;
562 #define MAX_WAIT 50 /* ms, half buffered_file limit */
564 static int ram_save_setup(QEMUFile
*f
, void *opaque
)
567 int64_t ram_pages
= last_ram_offset() >> TARGET_PAGE_BITS
;
569 migration_bitmap
= bitmap_new(ram_pages
);
570 bitmap_set(migration_bitmap
, 0, ram_pages
);
571 migration_dirty_pages
= ram_pages
;
573 if (migrate_use_xbzrle()) {
574 XBZRLE
.cache
= cache_init(migrate_xbzrle_cache_size() /
578 DPRINTF("Error creating cache\n");
581 XBZRLE
.encoded_buf
= g_malloc0(TARGET_PAGE_SIZE
);
582 XBZRLE
.current_buf
= g_malloc(TARGET_PAGE_SIZE
);
586 qemu_mutex_lock_iothread();
587 qemu_mutex_lock_ramlist();
588 bytes_transferred
= 0;
591 memory_global_dirty_log_start();
592 migration_bitmap_sync();
593 qemu_mutex_unlock_iothread();
595 qemu_put_be64(f
, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE
);
597 QTAILQ_FOREACH(block
, &ram_list
.blocks
, next
) {
598 qemu_put_byte(f
, strlen(block
->idstr
));
599 qemu_put_buffer(f
, (uint8_t *)block
->idstr
, strlen(block
->idstr
));
600 qemu_put_be64(f
, block
->length
);
603 qemu_mutex_unlock_ramlist();
604 qemu_put_be64(f
, RAM_SAVE_FLAG_EOS
);
609 static int ram_save_iterate(QEMUFile
*f
, void *opaque
)
616 qemu_mutex_lock_ramlist();
618 if (ram_list
.version
!= last_version
) {
622 t0
= qemu_get_clock_ns(rt_clock
);
624 while ((ret
= qemu_file_rate_limit(f
)) == 0) {
627 bytes_sent
= ram_save_block(f
, false);
628 /* no more blocks to sent */
629 if (bytes_sent
== 0) {
632 total_sent
+= bytes_sent
;
633 acct_info
.iterations
++;
634 /* we want to check in the 1st loop, just in case it was the 1st time
635 and we had to sync the dirty bitmap.
636 qemu_get_clock_ns() is a bit expensive, so we only check each some
640 uint64_t t1
= (qemu_get_clock_ns(rt_clock
) - t0
) / 1000000;
642 DPRINTF("big wait: %" PRIu64
" milliseconds, %d iterations\n",
650 qemu_mutex_unlock_ramlist();
653 bytes_transferred
+= total_sent
;
657 qemu_put_be64(f
, RAM_SAVE_FLAG_EOS
);
659 bytes_transferred
+= total_sent
;
664 static int ram_save_complete(QEMUFile
*f
, void *opaque
)
666 qemu_mutex_lock_ramlist();
667 migration_bitmap_sync();
669 /* try transferring iterative blocks of memory */
671 /* flush all remaining blocks regardless of rate limiting */
675 bytes_sent
= ram_save_block(f
, true);
676 /* no more blocks to sent */
677 if (bytes_sent
== 0) {
680 bytes_transferred
+= bytes_sent
;
684 qemu_mutex_unlock_ramlist();
685 qemu_put_be64(f
, RAM_SAVE_FLAG_EOS
);
690 static uint64_t ram_save_pending(QEMUFile
*f
, void *opaque
, uint64_t max_size
)
692 uint64_t remaining_size
;
694 remaining_size
= ram_save_remaining() * TARGET_PAGE_SIZE
;
696 if (remaining_size
< max_size
) {
697 qemu_mutex_lock_iothread();
698 migration_bitmap_sync();
699 qemu_mutex_unlock_iothread();
700 remaining_size
= ram_save_remaining() * TARGET_PAGE_SIZE
;
702 return remaining_size
;
705 static int load_xbzrle(QEMUFile
*f
, ram_addr_t addr
, void *host
)
711 if (!XBZRLE
.decoded_buf
) {
712 XBZRLE
.decoded_buf
= g_malloc(TARGET_PAGE_SIZE
);
715 /* extract RLE header */
716 xh_flags
= qemu_get_byte(f
);
717 xh_len
= qemu_get_be16(f
);
719 if (xh_flags
!= ENCODING_FLAG_XBZRLE
) {
720 fprintf(stderr
, "Failed to load XBZRLE page - wrong compression!\n");
724 if (xh_len
> TARGET_PAGE_SIZE
) {
725 fprintf(stderr
, "Failed to load XBZRLE page - len overflow!\n");
728 /* load data and decode */
729 qemu_get_buffer(f
, XBZRLE
.decoded_buf
, xh_len
);
732 ret
= xbzrle_decode_buffer(XBZRLE
.decoded_buf
, xh_len
, host
,
735 fprintf(stderr
, "Failed to load XBZRLE page - decode error!\n");
737 } else if (ret
> TARGET_PAGE_SIZE
) {
738 fprintf(stderr
, "Failed to load XBZRLE page - size %d exceeds %d!\n",
739 ret
, TARGET_PAGE_SIZE
);
746 static inline void *host_from_stream_offset(QEMUFile
*f
,
750 static RAMBlock
*block
= NULL
;
754 if (flags
& RAM_SAVE_FLAG_CONTINUE
) {
756 fprintf(stderr
, "Ack, bad migration stream!\n");
760 return memory_region_get_ram_ptr(block
->mr
) + offset
;
763 len
= qemu_get_byte(f
);
764 qemu_get_buffer(f
, (uint8_t *)id
, len
);
767 QTAILQ_FOREACH(block
, &ram_list
.blocks
, next
) {
768 if (!strncmp(id
, block
->idstr
, sizeof(id
)))
769 return memory_region_get_ram_ptr(block
->mr
) + offset
;
772 fprintf(stderr
, "Can't find block %s!\n", id
);
776 static int ram_load(QEMUFile
*f
, void *opaque
, int version_id
)
781 static uint64_t seq_iter
;
785 if (version_id
< 4 || version_id
> 4) {
790 addr
= qemu_get_be64(f
);
792 flags
= addr
& ~TARGET_PAGE_MASK
;
793 addr
&= TARGET_PAGE_MASK
;
795 if (flags
& RAM_SAVE_FLAG_MEM_SIZE
) {
796 if (version_id
== 4) {
797 /* Synchronize RAM block list */
800 ram_addr_t total_ram_bytes
= addr
;
802 while (total_ram_bytes
) {
806 len
= qemu_get_byte(f
);
807 qemu_get_buffer(f
, (uint8_t *)id
, len
);
809 length
= qemu_get_be64(f
);
811 QTAILQ_FOREACH(block
, &ram_list
.blocks
, next
) {
812 if (!strncmp(id
, block
->idstr
, sizeof(id
))) {
813 if (block
->length
!= length
) {
822 fprintf(stderr
, "Unknown ramblock \"%s\", cannot "
823 "accept migration\n", id
);
828 total_ram_bytes
-= length
;
833 if (flags
& RAM_SAVE_FLAG_COMPRESS
) {
837 host
= host_from_stream_offset(f
, addr
, flags
);
842 ch
= qemu_get_byte(f
);
843 memset(host
, ch
, TARGET_PAGE_SIZE
);
846 (!kvm_enabled() || kvm_has_sync_mmu()) &&
847 getpagesize() <= TARGET_PAGE_SIZE
) {
848 qemu_madvise(host
, TARGET_PAGE_SIZE
, QEMU_MADV_DONTNEED
);
851 } else if (flags
& RAM_SAVE_FLAG_PAGE
) {
854 host
= host_from_stream_offset(f
, addr
, flags
);
859 qemu_get_buffer(f
, host
, TARGET_PAGE_SIZE
);
860 } else if (flags
& RAM_SAVE_FLAG_XBZRLE
) {
861 void *host
= host_from_stream_offset(f
, addr
, flags
);
866 if (load_xbzrle(f
, addr
, host
) < 0) {
871 error
= qemu_file_get_error(f
);
876 } while (!(flags
& RAM_SAVE_FLAG_EOS
));
879 DPRINTF("Completed load of VM with exit code %d seq iteration "
880 "%" PRIu64
"\n", ret
, seq_iter
);
884 SaveVMHandlers savevm_ram_handlers
= {
885 .save_live_setup
= ram_save_setup
,
886 .save_live_iterate
= ram_save_iterate
,
887 .save_live_complete
= ram_save_complete
,
888 .save_live_pending
= ram_save_pending
,
889 .load_state
= ram_load
,
890 .cancel
= ram_migration_cancel
,
900 int (*init_isa
) (ISABus
*bus
);
901 int (*init_pci
) (PCIBus
*bus
);
905 static struct soundhw soundhw
[] = {
906 #ifdef HAS_AUDIO_CHOICE
913 { .init_isa
= pcspk_audio_init
}
920 "Creative Sound Blaster 16",
923 { .init_isa
= SB16_init
}
927 #ifdef CONFIG_CS4231A
933 { .init_isa
= cs4231a_init
}
941 "Yamaha YMF262 (OPL3)",
943 "Yamaha YM3812 (OPL2)",
947 { .init_isa
= Adlib_init
}
954 "Gravis Ultrasound GF1",
957 { .init_isa
= GUS_init
}
964 "Intel 82801AA AC97 Audio",
967 { .init_pci
= ac97_init
}
974 "ENSONIQ AudioPCI ES1370",
977 { .init_pci
= es1370_init
}
987 { .init_pci
= intel_hda_and_codec_init
}
991 #endif /* HAS_AUDIO_CHOICE */
993 { NULL
, NULL
, 0, 0, { NULL
} }
996 void select_soundhw(const char *optarg
)
1000 if (is_help_option(optarg
)) {
1003 #ifdef HAS_AUDIO_CHOICE
1004 printf("Valid sound card names (comma separated):\n");
1005 for (c
= soundhw
; c
->name
; ++c
) {
1006 printf ("%-11s %s\n", c
->name
, c
->descr
);
1008 printf("\n-soundhw all will enable all of the above\n");
1010 printf("Machine has no user-selectable audio hardware "
1011 "(it may or may not have always-present audio hardware).\n");
1013 exit(!is_help_option(optarg
));
1021 if (!strcmp(optarg
, "all")) {
1022 for (c
= soundhw
; c
->name
; ++c
) {
1031 l
= !e
? strlen(p
) : (size_t) (e
- p
);
1033 for (c
= soundhw
; c
->name
; ++c
) {
1034 if (!strncmp(c
->name
, p
, l
) && !c
->name
[l
]) {
1043 "Unknown sound card name (too big to show)\n");
1046 fprintf(stderr
, "Unknown sound card name `%.*s'\n",
1051 p
+= l
+ (e
!= NULL
);
1055 goto show_valid_cards
;
1060 void audio_init(ISABus
*isa_bus
, PCIBus
*pci_bus
)
1064 for (c
= soundhw
; c
->name
; ++c
) {
1068 c
->init
.init_isa(isa_bus
);
1072 c
->init
.init_pci(pci_bus
);
1079 void select_soundhw(const char *optarg
)
1082 void audio_init(ISABus
*isa_bus
, PCIBus
*pci_bus
)
1087 int qemu_uuid_parse(const char *str
, uint8_t *uuid
)
1091 if (strlen(str
) != 36) {
1095 ret
= sscanf(str
, UUID_FMT
, &uuid
[0], &uuid
[1], &uuid
[2], &uuid
[3],
1096 &uuid
[4], &uuid
[5], &uuid
[6], &uuid
[7], &uuid
[8], &uuid
[9],
1097 &uuid
[10], &uuid
[11], &uuid
[12], &uuid
[13], &uuid
[14],
1104 smbios_add_field(1, offsetof(struct smbios_type_1
, uuid
), 16, uuid
);
1109 void do_acpitable_option(const char *optarg
)
1112 if (acpi_table_add(optarg
) < 0) {
1113 fprintf(stderr
, "Wrong acpi table provided\n");
1119 void do_smbios_option(const char *optarg
)
1122 if (smbios_entry_add(optarg
) < 0) {
1123 fprintf(stderr
, "Wrong smbios provided\n");
1129 void cpudef_init(void)
1131 #if defined(cpudef_setup)
1132 cpudef_setup(); /* parse cpu definitions in target config file */
1136 int audio_available(void)
1145 int tcg_available(void)
1150 int kvm_available(void)
1159 int xen_available(void)
1169 TargetInfo
*qmp_query_target(Error
**errp
)
1171 TargetInfo
*info
= g_malloc0(sizeof(*info
));
1173 info
->arch
= TARGET_TYPE
;