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"
38 #include "hw/i386/pc.h"
39 #include "hw/pci/pci.h"
40 #include "hw/audio/audio.h"
41 #include "sysemu/kvm.h"
42 #include "migration/migration.h"
43 #include "exec/gdbstub.h"
44 #include "hw/i386/smbios.h"
45 #include "exec/address-spaces.h"
46 #include "hw/audio/pcspk.h"
47 #include "migration/page_cache.h"
48 #include "qemu/config-file.h"
49 #include "qmp-commands.h"
51 #include "exec/cpu-all.h"
52 #include "hw/acpi/acpi.h"
54 #ifdef DEBUG_ARCH_INIT
55 #define DPRINTF(fmt, ...) \
56 do { fprintf(stdout, "arch_init: " fmt, ## __VA_ARGS__); } while (0)
58 #define DPRINTF(fmt, ...) \
63 int graphic_width
= 1024;
64 int graphic_height
= 768;
65 int graphic_depth
= 8;
67 int graphic_width
= 800;
68 int graphic_height
= 600;
69 int graphic_depth
= 15;
73 #if defined(TARGET_ALPHA)
74 #define QEMU_ARCH QEMU_ARCH_ALPHA
75 #elif defined(TARGET_ARM)
76 #define QEMU_ARCH QEMU_ARCH_ARM
77 #elif defined(TARGET_CRIS)
78 #define QEMU_ARCH QEMU_ARCH_CRIS
79 #elif defined(TARGET_I386)
80 #define QEMU_ARCH QEMU_ARCH_I386
81 #elif defined(TARGET_M68K)
82 #define QEMU_ARCH QEMU_ARCH_M68K
83 #elif defined(TARGET_LM32)
84 #define QEMU_ARCH QEMU_ARCH_LM32
85 #elif defined(TARGET_MICROBLAZE)
86 #define QEMU_ARCH QEMU_ARCH_MICROBLAZE
87 #elif defined(TARGET_MIPS)
88 #define QEMU_ARCH QEMU_ARCH_MIPS
89 #elif defined(TARGET_MOXIE)
90 #define QEMU_ARCH QEMU_ARCH_MOXIE
91 #elif defined(TARGET_OPENRISC)
92 #define QEMU_ARCH QEMU_ARCH_OPENRISC
93 #elif defined(TARGET_PPC)
94 #define QEMU_ARCH QEMU_ARCH_PPC
95 #elif defined(TARGET_S390X)
96 #define QEMU_ARCH QEMU_ARCH_S390X
97 #elif defined(TARGET_SH4)
98 #define QEMU_ARCH QEMU_ARCH_SH4
99 #elif defined(TARGET_SPARC)
100 #define QEMU_ARCH QEMU_ARCH_SPARC
101 #elif defined(TARGET_XTENSA)
102 #define QEMU_ARCH QEMU_ARCH_XTENSA
103 #elif defined(TARGET_UNICORE32)
104 #define QEMU_ARCH QEMU_ARCH_UNICORE32
107 const uint32_t arch_type
= QEMU_ARCH
;
109 /***********************************************************/
110 /* ram save/restore */
112 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
113 #define RAM_SAVE_FLAG_COMPRESS 0x02
114 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
115 #define RAM_SAVE_FLAG_PAGE 0x08
116 #define RAM_SAVE_FLAG_EOS 0x10
117 #define RAM_SAVE_FLAG_CONTINUE 0x20
118 #define RAM_SAVE_FLAG_XBZRLE 0x40
121 static struct defconfig_file
{
122 const char *filename
;
123 /* Indicates it is an user config file (disabled by -no-user-config) */
125 } default_config_files
[] = {
126 { CONFIG_QEMU_CONFDIR
"/qemu.conf", true },
127 { CONFIG_QEMU_CONFDIR
"/target-" TARGET_ARCH
".conf", true },
128 { NULL
}, /* end of list */
132 int qemu_read_default_config_files(bool userconfig
)
135 struct defconfig_file
*f
;
137 for (f
= default_config_files
; f
->filename
; f
++) {
138 if (!userconfig
&& f
->userconfig
) {
141 ret
= qemu_read_config_file(f
->filename
);
142 if (ret
< 0 && ret
!= -ENOENT
) {
150 static inline bool is_zero_page(uint8_t *p
)
152 return buffer_find_nonzero_offset(p
, TARGET_PAGE_SIZE
) ==
156 /* struct contains XBZRLE cache and a static page
157 used by the compression */
159 /* buffer used for XBZRLE encoding */
160 uint8_t *encoded_buf
;
161 /* buffer for storing page content */
162 uint8_t *current_buf
;
163 /* buffer used for XBZRLE decoding */
164 uint8_t *decoded_buf
;
165 /* Cache for XBZRLE */
175 int64_t xbzrle_cache_resize(int64_t new_size
)
177 if (XBZRLE
.cache
!= NULL
) {
178 return cache_resize(XBZRLE
.cache
, new_size
/ TARGET_PAGE_SIZE
) *
181 return pow2floor(new_size
);
184 /* accounting for migration statistics */
185 typedef struct AccountingInfo
{
187 uint64_t skipped_pages
;
190 uint64_t xbzrle_bytes
;
191 uint64_t xbzrle_pages
;
192 uint64_t xbzrle_cache_miss
;
193 uint64_t xbzrle_overflows
;
196 static AccountingInfo acct_info
;
198 static void acct_clear(void)
200 memset(&acct_info
, 0, sizeof(acct_info
));
203 uint64_t dup_mig_bytes_transferred(void)
205 return acct_info
.dup_pages
* TARGET_PAGE_SIZE
;
208 uint64_t dup_mig_pages_transferred(void)
210 return acct_info
.dup_pages
;
213 uint64_t skipped_mig_bytes_transferred(void)
215 return acct_info
.skipped_pages
* TARGET_PAGE_SIZE
;
218 uint64_t skipped_mig_pages_transferred(void)
220 return acct_info
.skipped_pages
;
223 uint64_t norm_mig_bytes_transferred(void)
225 return acct_info
.norm_pages
* TARGET_PAGE_SIZE
;
228 uint64_t norm_mig_pages_transferred(void)
230 return acct_info
.norm_pages
;
233 uint64_t xbzrle_mig_bytes_transferred(void)
235 return acct_info
.xbzrle_bytes
;
238 uint64_t xbzrle_mig_pages_transferred(void)
240 return acct_info
.xbzrle_pages
;
243 uint64_t xbzrle_mig_pages_cache_miss(void)
245 return acct_info
.xbzrle_cache_miss
;
248 uint64_t xbzrle_mig_pages_overflow(void)
250 return acct_info
.xbzrle_overflows
;
253 static size_t save_block_hdr(QEMUFile
*f
, RAMBlock
*block
, ram_addr_t offset
,
258 qemu_put_be64(f
, offset
| cont
| flag
);
262 qemu_put_byte(f
, strlen(block
->idstr
));
263 qemu_put_buffer(f
, (uint8_t *)block
->idstr
,
264 strlen(block
->idstr
));
265 size
+= 1 + strlen(block
->idstr
);
270 #define ENCODING_FLAG_XBZRLE 0x1
272 static int save_xbzrle_page(QEMUFile
*f
, uint8_t *current_data
,
273 ram_addr_t current_addr
, RAMBlock
*block
,
274 ram_addr_t offset
, int cont
, bool last_stage
)
276 int encoded_len
= 0, bytes_sent
= -1;
277 uint8_t *prev_cached_page
;
279 if (!cache_is_cached(XBZRLE
.cache
, current_addr
)) {
281 cache_insert(XBZRLE
.cache
, current_addr
, current_data
);
283 acct_info
.xbzrle_cache_miss
++;
287 prev_cached_page
= get_cached_data(XBZRLE
.cache
, current_addr
);
289 /* save current buffer into memory */
290 memcpy(XBZRLE
.current_buf
, current_data
, TARGET_PAGE_SIZE
);
292 /* XBZRLE encoding (if there is no overflow) */
293 encoded_len
= xbzrle_encode_buffer(prev_cached_page
, XBZRLE
.current_buf
,
294 TARGET_PAGE_SIZE
, XBZRLE
.encoded_buf
,
296 if (encoded_len
== 0) {
297 DPRINTF("Skipping unmodified page\n");
299 } else if (encoded_len
== -1) {
300 DPRINTF("Overflow\n");
301 acct_info
.xbzrle_overflows
++;
302 /* update data in the cache */
303 memcpy(prev_cached_page
, current_data
, TARGET_PAGE_SIZE
);
307 /* we need to update the data in the cache, in order to get the same data */
309 memcpy(prev_cached_page
, XBZRLE
.current_buf
, TARGET_PAGE_SIZE
);
312 /* Send XBZRLE based compressed page */
313 bytes_sent
= save_block_hdr(f
, block
, offset
, cont
, RAM_SAVE_FLAG_XBZRLE
);
314 qemu_put_byte(f
, ENCODING_FLAG_XBZRLE
);
315 qemu_put_be16(f
, encoded_len
);
316 qemu_put_buffer(f
, XBZRLE
.encoded_buf
, encoded_len
);
317 bytes_sent
+= encoded_len
+ 1 + 2;
318 acct_info
.xbzrle_pages
++;
319 acct_info
.xbzrle_bytes
+= bytes_sent
;
325 /* This is the last block that we have visited serching for dirty pages
327 static RAMBlock
*last_seen_block
;
328 /* This is the last block from where we have sent data */
329 static RAMBlock
*last_sent_block
;
330 static ram_addr_t last_offset
;
331 static unsigned long *migration_bitmap
;
332 static uint64_t migration_dirty_pages
;
333 static uint32_t last_version
;
334 static bool ram_bulk_stage
;
337 ram_addr_t
migration_bitmap_find_and_reset_dirty(MemoryRegion
*mr
,
340 unsigned long base
= mr
->ram_addr
>> TARGET_PAGE_BITS
;
341 unsigned long nr
= base
+ (start
>> TARGET_PAGE_BITS
);
342 unsigned long size
= base
+ (int128_get64(mr
->size
) >> TARGET_PAGE_BITS
);
346 if (ram_bulk_stage
&& nr
> base
) {
349 next
= find_next_bit(migration_bitmap
, size
, nr
);
353 clear_bit(next
, migration_bitmap
);
354 migration_dirty_pages
--;
356 return (next
- base
) << TARGET_PAGE_BITS
;
359 static inline bool migration_bitmap_set_dirty(MemoryRegion
*mr
,
363 int nr
= (mr
->ram_addr
+ offset
) >> TARGET_PAGE_BITS
;
365 ret
= test_and_set_bit(nr
, migration_bitmap
);
368 migration_dirty_pages
++;
373 /* Needs iothread lock! */
375 static void migration_bitmap_sync(void)
379 uint64_t num_dirty_pages_init
= migration_dirty_pages
;
380 MigrationState
*s
= migrate_get_current();
381 static int64_t start_time
;
382 static int64_t num_dirty_pages_period
;
386 start_time
= qemu_get_clock_ms(rt_clock
);
389 trace_migration_bitmap_sync_start();
390 memory_global_sync_dirty_bitmap(get_system_memory());
392 QTAILQ_FOREACH(block
, &ram_list
.blocks
, next
) {
393 for (addr
= 0; addr
< block
->length
; addr
+= TARGET_PAGE_SIZE
) {
394 if (memory_region_test_and_clear_dirty(block
->mr
,
395 addr
, TARGET_PAGE_SIZE
,
396 DIRTY_MEMORY_MIGRATION
)) {
397 migration_bitmap_set_dirty(block
->mr
, addr
);
401 trace_migration_bitmap_sync_end(migration_dirty_pages
402 - num_dirty_pages_init
);
403 num_dirty_pages_period
+= migration_dirty_pages
- num_dirty_pages_init
;
404 end_time
= qemu_get_clock_ms(rt_clock
);
406 /* more than 1 second = 1000 millisecons */
407 if (end_time
> start_time
+ 1000) {
408 s
->dirty_pages_rate
= num_dirty_pages_period
* 1000
409 / (end_time
- start_time
);
410 s
->dirty_bytes_rate
= s
->dirty_pages_rate
* TARGET_PAGE_SIZE
;
411 start_time
= end_time
;
412 num_dirty_pages_period
= 0;
417 * ram_save_block: Writes a page of memory to the stream f
419 * Returns: The number of bytes written.
420 * 0 means no dirty pages
423 static int ram_save_block(QEMUFile
*f
, bool last_stage
)
425 RAMBlock
*block
= last_seen_block
;
426 ram_addr_t offset
= last_offset
;
427 bool complete_round
= false;
430 ram_addr_t current_addr
;
433 block
= QTAILQ_FIRST(&ram_list
.blocks
);
437 offset
= migration_bitmap_find_and_reset_dirty(mr
, offset
);
438 if (complete_round
&& block
== last_seen_block
&&
439 offset
>= last_offset
) {
442 if (offset
>= block
->length
) {
444 block
= QTAILQ_NEXT(block
, next
);
446 block
= QTAILQ_FIRST(&ram_list
.blocks
);
447 complete_round
= true;
448 ram_bulk_stage
= false;
452 int cont
= (block
== last_sent_block
) ?
453 RAM_SAVE_FLAG_CONTINUE
: 0;
455 p
= memory_region_get_ram_ptr(mr
) + offset
;
457 /* In doubt sent page as normal */
459 if (is_zero_page(p
)) {
460 acct_info
.dup_pages
++;
461 if (!ram_bulk_stage
) {
462 bytes_sent
= save_block_hdr(f
, block
, offset
, cont
,
463 RAM_SAVE_FLAG_COMPRESS
);
467 acct_info
.skipped_pages
++;
470 } else if (!ram_bulk_stage
&& migrate_use_xbzrle()) {
471 current_addr
= block
->offset
+ offset
;
472 bytes_sent
= save_xbzrle_page(f
, p
, current_addr
, block
,
473 offset
, cont
, last_stage
);
475 p
= get_cached_data(XBZRLE
.cache
, current_addr
);
479 /* XBZRLE overflow or normal page */
480 if (bytes_sent
== -1) {
481 bytes_sent
= save_block_hdr(f
, block
, offset
, cont
, RAM_SAVE_FLAG_PAGE
);
482 qemu_put_buffer_async(f
, p
, TARGET_PAGE_SIZE
);
483 bytes_sent
+= TARGET_PAGE_SIZE
;
484 acct_info
.norm_pages
++;
487 /* if page is unmodified, continue to the next */
488 if (bytes_sent
> 0) {
489 last_sent_block
= block
;
494 last_seen_block
= block
;
495 last_offset
= offset
;
500 static uint64_t bytes_transferred
;
502 static ram_addr_t
ram_save_remaining(void)
504 return migration_dirty_pages
;
507 uint64_t ram_bytes_remaining(void)
509 return ram_save_remaining() * TARGET_PAGE_SIZE
;
512 uint64_t ram_bytes_transferred(void)
514 return bytes_transferred
;
517 uint64_t ram_bytes_total(void)
522 QTAILQ_FOREACH(block
, &ram_list
.blocks
, next
)
523 total
+= block
->length
;
528 static void migration_end(void)
530 if (migration_bitmap
) {
531 memory_global_dirty_log_stop();
532 g_free(migration_bitmap
);
533 migration_bitmap
= NULL
;
537 cache_fini(XBZRLE
.cache
);
538 g_free(XBZRLE
.cache
);
539 g_free(XBZRLE
.encoded_buf
);
540 g_free(XBZRLE
.current_buf
);
541 g_free(XBZRLE
.decoded_buf
);
546 static void ram_migration_cancel(void *opaque
)
551 static void reset_ram_globals(void)
553 last_seen_block
= NULL
;
554 last_sent_block
= NULL
;
556 last_version
= ram_list
.version
;
557 ram_bulk_stage
= true;
560 #define MAX_WAIT 50 /* ms, half buffered_file limit */
562 static int ram_save_setup(QEMUFile
*f
, void *opaque
)
565 int64_t ram_pages
= last_ram_offset() >> TARGET_PAGE_BITS
;
567 migration_bitmap
= bitmap_new(ram_pages
);
568 bitmap_set(migration_bitmap
, 0, ram_pages
);
569 migration_dirty_pages
= ram_pages
;
571 if (migrate_use_xbzrle()) {
572 XBZRLE
.cache
= cache_init(migrate_xbzrle_cache_size() /
576 DPRINTF("Error creating cache\n");
579 XBZRLE
.encoded_buf
= g_malloc0(TARGET_PAGE_SIZE
);
580 XBZRLE
.current_buf
= g_malloc(TARGET_PAGE_SIZE
);
584 qemu_mutex_lock_iothread();
585 qemu_mutex_lock_ramlist();
586 bytes_transferred
= 0;
589 memory_global_dirty_log_start();
590 migration_bitmap_sync();
591 qemu_mutex_unlock_iothread();
593 qemu_put_be64(f
, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE
);
595 QTAILQ_FOREACH(block
, &ram_list
.blocks
, next
) {
596 qemu_put_byte(f
, strlen(block
->idstr
));
597 qemu_put_buffer(f
, (uint8_t *)block
->idstr
, strlen(block
->idstr
));
598 qemu_put_be64(f
, block
->length
);
601 qemu_mutex_unlock_ramlist();
602 qemu_put_be64(f
, RAM_SAVE_FLAG_EOS
);
607 static int ram_save_iterate(QEMUFile
*f
, void *opaque
)
614 qemu_mutex_lock_ramlist();
616 if (ram_list
.version
!= last_version
) {
620 t0
= qemu_get_clock_ns(rt_clock
);
622 while ((ret
= qemu_file_rate_limit(f
)) == 0) {
625 bytes_sent
= ram_save_block(f
, false);
626 /* no more blocks to sent */
627 if (bytes_sent
== 0) {
630 total_sent
+= bytes_sent
;
631 acct_info
.iterations
++;
632 /* we want to check in the 1st loop, just in case it was the 1st time
633 and we had to sync the dirty bitmap.
634 qemu_get_clock_ns() is a bit expensive, so we only check each some
638 uint64_t t1
= (qemu_get_clock_ns(rt_clock
) - t0
) / 1000000;
640 DPRINTF("big wait: %" PRIu64
" milliseconds, %d iterations\n",
648 qemu_mutex_unlock_ramlist();
651 bytes_transferred
+= total_sent
;
655 qemu_put_be64(f
, RAM_SAVE_FLAG_EOS
);
657 bytes_transferred
+= total_sent
;
662 static int ram_save_complete(QEMUFile
*f
, void *opaque
)
664 qemu_mutex_lock_ramlist();
665 migration_bitmap_sync();
667 /* try transferring iterative blocks of memory */
669 /* flush all remaining blocks regardless of rate limiting */
673 bytes_sent
= ram_save_block(f
, true);
674 /* no more blocks to sent */
675 if (bytes_sent
== 0) {
678 bytes_transferred
+= bytes_sent
;
682 qemu_mutex_unlock_ramlist();
683 qemu_put_be64(f
, RAM_SAVE_FLAG_EOS
);
688 static uint64_t ram_save_pending(QEMUFile
*f
, void *opaque
, uint64_t max_size
)
690 uint64_t remaining_size
;
692 remaining_size
= ram_save_remaining() * TARGET_PAGE_SIZE
;
694 if (remaining_size
< max_size
) {
695 qemu_mutex_lock_iothread();
696 migration_bitmap_sync();
697 qemu_mutex_unlock_iothread();
698 remaining_size
= ram_save_remaining() * TARGET_PAGE_SIZE
;
700 return remaining_size
;
703 static int load_xbzrle(QEMUFile
*f
, ram_addr_t addr
, void *host
)
709 if (!XBZRLE
.decoded_buf
) {
710 XBZRLE
.decoded_buf
= g_malloc(TARGET_PAGE_SIZE
);
713 /* extract RLE header */
714 xh_flags
= qemu_get_byte(f
);
715 xh_len
= qemu_get_be16(f
);
717 if (xh_flags
!= ENCODING_FLAG_XBZRLE
) {
718 fprintf(stderr
, "Failed to load XBZRLE page - wrong compression!\n");
722 if (xh_len
> TARGET_PAGE_SIZE
) {
723 fprintf(stderr
, "Failed to load XBZRLE page - len overflow!\n");
726 /* load data and decode */
727 qemu_get_buffer(f
, XBZRLE
.decoded_buf
, xh_len
);
730 ret
= xbzrle_decode_buffer(XBZRLE
.decoded_buf
, xh_len
, host
,
733 fprintf(stderr
, "Failed to load XBZRLE page - decode error!\n");
735 } else if (ret
> TARGET_PAGE_SIZE
) {
736 fprintf(stderr
, "Failed to load XBZRLE page - size %d exceeds %d!\n",
737 ret
, TARGET_PAGE_SIZE
);
744 static inline void *host_from_stream_offset(QEMUFile
*f
,
748 static RAMBlock
*block
= NULL
;
752 if (flags
& RAM_SAVE_FLAG_CONTINUE
) {
754 fprintf(stderr
, "Ack, bad migration stream!\n");
758 return memory_region_get_ram_ptr(block
->mr
) + offset
;
761 len
= qemu_get_byte(f
);
762 qemu_get_buffer(f
, (uint8_t *)id
, len
);
765 QTAILQ_FOREACH(block
, &ram_list
.blocks
, next
) {
766 if (!strncmp(id
, block
->idstr
, sizeof(id
)))
767 return memory_region_get_ram_ptr(block
->mr
) + offset
;
770 fprintf(stderr
, "Can't find block %s!\n", id
);
774 static int ram_load(QEMUFile
*f
, void *opaque
, int version_id
)
779 static uint64_t seq_iter
;
783 if (version_id
< 4 || version_id
> 4) {
788 addr
= qemu_get_be64(f
);
790 flags
= addr
& ~TARGET_PAGE_MASK
;
791 addr
&= TARGET_PAGE_MASK
;
793 if (flags
& RAM_SAVE_FLAG_MEM_SIZE
) {
794 if (version_id
== 4) {
795 /* Synchronize RAM block list */
798 ram_addr_t total_ram_bytes
= addr
;
800 while (total_ram_bytes
) {
804 len
= qemu_get_byte(f
);
805 qemu_get_buffer(f
, (uint8_t *)id
, len
);
807 length
= qemu_get_be64(f
);
809 QTAILQ_FOREACH(block
, &ram_list
.blocks
, next
) {
810 if (!strncmp(id
, block
->idstr
, sizeof(id
))) {
811 if (block
->length
!= length
) {
820 fprintf(stderr
, "Unknown ramblock \"%s\", cannot "
821 "accept migration\n", id
);
826 total_ram_bytes
-= length
;
831 if (flags
& RAM_SAVE_FLAG_COMPRESS
) {
835 host
= host_from_stream_offset(f
, addr
, flags
);
840 ch
= qemu_get_byte(f
);
841 memset(host
, ch
, TARGET_PAGE_SIZE
);
844 (!kvm_enabled() || kvm_has_sync_mmu()) &&
845 getpagesize() <= TARGET_PAGE_SIZE
) {
846 qemu_madvise(host
, TARGET_PAGE_SIZE
, QEMU_MADV_DONTNEED
);
849 } else if (flags
& RAM_SAVE_FLAG_PAGE
) {
852 host
= host_from_stream_offset(f
, addr
, flags
);
857 qemu_get_buffer(f
, host
, TARGET_PAGE_SIZE
);
858 } else if (flags
& RAM_SAVE_FLAG_XBZRLE
) {
859 void *host
= host_from_stream_offset(f
, addr
, flags
);
864 if (load_xbzrle(f
, addr
, host
) < 0) {
869 error
= qemu_file_get_error(f
);
874 } while (!(flags
& RAM_SAVE_FLAG_EOS
));
877 DPRINTF("Completed load of VM with exit code %d seq iteration "
878 "%" PRIu64
"\n", ret
, seq_iter
);
882 SaveVMHandlers savevm_ram_handlers
= {
883 .save_live_setup
= ram_save_setup
,
884 .save_live_iterate
= ram_save_iterate
,
885 .save_live_complete
= ram_save_complete
,
886 .save_live_pending
= ram_save_pending
,
887 .load_state
= ram_load
,
888 .cancel
= ram_migration_cancel
,
898 int (*init_isa
) (ISABus
*bus
);
899 int (*init_pci
) (PCIBus
*bus
);
903 static struct soundhw soundhw
[] = {
904 #ifdef HAS_AUDIO_CHOICE
911 { .init_isa
= pcspk_audio_init
}
918 "Creative Sound Blaster 16",
921 { .init_isa
= SB16_init
}
925 #ifdef CONFIG_CS4231A
931 { .init_isa
= cs4231a_init
}
939 "Yamaha YMF262 (OPL3)",
941 "Yamaha YM3812 (OPL2)",
945 { .init_isa
= Adlib_init
}
952 "Gravis Ultrasound GF1",
955 { .init_isa
= GUS_init
}
962 "Intel 82801AA AC97 Audio",
965 { .init_pci
= ac97_init
}
972 "ENSONIQ AudioPCI ES1370",
975 { .init_pci
= es1370_init
}
985 { .init_pci
= intel_hda_and_codec_init
}
989 #endif /* HAS_AUDIO_CHOICE */
991 { NULL
, NULL
, 0, 0, { NULL
} }
994 void select_soundhw(const char *optarg
)
998 if (is_help_option(optarg
)) {
1001 #ifdef HAS_AUDIO_CHOICE
1002 printf("Valid sound card names (comma separated):\n");
1003 for (c
= soundhw
; c
->name
; ++c
) {
1004 printf ("%-11s %s\n", c
->name
, c
->descr
);
1006 printf("\n-soundhw all will enable all of the above\n");
1008 printf("Machine has no user-selectable audio hardware "
1009 "(it may or may not have always-present audio hardware).\n");
1011 exit(!is_help_option(optarg
));
1019 if (!strcmp(optarg
, "all")) {
1020 for (c
= soundhw
; c
->name
; ++c
) {
1029 l
= !e
? strlen(p
) : (size_t) (e
- p
);
1031 for (c
= soundhw
; c
->name
; ++c
) {
1032 if (!strncmp(c
->name
, p
, l
) && !c
->name
[l
]) {
1041 "Unknown sound card name (too big to show)\n");
1044 fprintf(stderr
, "Unknown sound card name `%.*s'\n",
1049 p
+= l
+ (e
!= NULL
);
1053 goto show_valid_cards
;
1058 void audio_init(ISABus
*isa_bus
, PCIBus
*pci_bus
)
1062 for (c
= soundhw
; c
->name
; ++c
) {
1066 c
->init
.init_isa(isa_bus
);
1070 c
->init
.init_pci(pci_bus
);
1077 void select_soundhw(const char *optarg
)
1080 void audio_init(ISABus
*isa_bus
, PCIBus
*pci_bus
)
1085 int qemu_uuid_parse(const char *str
, uint8_t *uuid
)
1089 if (strlen(str
) != 36) {
1093 ret
= sscanf(str
, UUID_FMT
, &uuid
[0], &uuid
[1], &uuid
[2], &uuid
[3],
1094 &uuid
[4], &uuid
[5], &uuid
[6], &uuid
[7], &uuid
[8], &uuid
[9],
1095 &uuid
[10], &uuid
[11], &uuid
[12], &uuid
[13], &uuid
[14],
1102 smbios_add_field(1, offsetof(struct smbios_type_1
, uuid
), 16, uuid
);
1107 void do_acpitable_option(const QemuOpts
*opts
)
1112 acpi_table_add(opts
, &err
);
1114 fprintf(stderr
, "Wrong acpi table provided: %s\n",
1115 error_get_pretty(err
));
1122 void do_smbios_option(const char *optarg
)
1125 if (smbios_entry_add(optarg
) < 0) {
1126 fprintf(stderr
, "Wrong smbios provided\n");
1132 void cpudef_init(void)
1134 #if defined(cpudef_setup)
1135 cpudef_setup(); /* parse cpu definitions in target config file */
1139 int audio_available(void)
1148 int tcg_available(void)
1153 int kvm_available(void)
1162 int xen_available(void)
1172 TargetInfo
*qmp_query_target(Error
**errp
)
1174 TargetInfo
*info
= g_malloc0(sizeof(*info
));
1176 info
->arch
= TARGET_TYPE
;