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29#ifndef QEMU_MIGRATION_RAM_H
30#define QEMU_MIGRATION_RAM_H
31
32#include "qapi/qapi-types-migration.h"
33#include "exec/cpu-common.h"
34#include "io/channel.h"
35
36extern MigrationStats ram_counters;
37extern XBZRLECacheStats xbzrle_counters;
38extern CompressionStats compression_counters;
39
40bool ramblock_is_ignored(RAMBlock *block);
41
42#define RAMBLOCK_FOREACH_NOT_IGNORED(block) \
43 INTERNAL_RAMBLOCK_FOREACH(block) \
44 if (ramblock_is_ignored(block)) {} else
45
46#define RAMBLOCK_FOREACH_MIGRATABLE(block) \
47 INTERNAL_RAMBLOCK_FOREACH(block) \
48 if (!qemu_ram_is_migratable(block)) {} else
49
50int xbzrle_cache_resize(uint64_t new_size, Error **errp);
51uint64_t ram_bytes_remaining(void);
52uint64_t ram_bytes_total(void);
53
54uint64_t ram_pagesize_summary(void);
55int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len);
56void acct_update_position(QEMUFile *f, size_t size, bool zero);
57void ram_debug_dump_bitmap(unsigned long *todump, bool expected,
58 unsigned long pages);
59void ram_postcopy_migrated_memory_release(MigrationState *ms);
60
61int ram_postcopy_send_discard_bitmap(MigrationState *ms);
62
63int ram_discard_range(const char *block_name, uint64_t start, size_t length);
64int ram_postcopy_incoming_init(MigrationIncomingState *mis);
65
66void ram_handle_compressed(void *host, uint8_t ch, uint64_t size);
67
68int ramblock_recv_bitmap_test(RAMBlock *rb, void *host_addr);
69bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t byte_offset);
70void ramblock_recv_bitmap_set(RAMBlock *rb, void *host_addr);
71void ramblock_recv_bitmap_set_range(RAMBlock *rb, void *host_addr, size_t nr);
72int64_t ramblock_recv_bitmap_send(QEMUFile *file,
73 const char *block_name);
74int ram_dirty_bitmap_reload(MigrationState *s, RAMBlock *rb);
75
76
77int colo_init_ram_cache(void);
78void colo_flush_ram_cache(void);
79void colo_release_ram_cache(void);
80void colo_incoming_start_dirty_log(void);
81
82
83bool ram_write_tracking_available(void);
84bool ram_write_tracking_compatible(void);
85void ram_write_tracking_prepare(void);
86int ram_write_tracking_start(void);
87void ram_write_tracking_stop(void);
88
89#endif
90