1 | /* |
2 | * QEMU System Emulator |
3 | * |
4 | * Copyright (c) 2003-2008 Fabrice Bellard |
5 | * Copyright (c) 2011-2015 Red Hat Inc |
6 | * |
7 | * Authors: |
8 | * Juan Quintela <quintela@redhat.com> |
9 | * |
10 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
11 | * of this software and associated documentation files (the "Software"), to deal |
12 | * in the Software without restriction, including without limitation the rights |
13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
14 | * copies of the Software, and to permit persons to whom the Software is |
15 | * furnished to do so, subject to the following conditions: |
16 | * |
17 | * The above copyright notice and this permission notice shall be included in |
18 | * all copies or substantial portions of the Software. |
19 | * |
20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
23 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
25 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
26 | * THE SOFTWARE. |
27 | */ |
28 | |
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 | |
36 | extern MigrationStats ram_counters; |
37 | extern XBZRLECacheStats xbzrle_counters; |
38 | extern CompressionStats compression_counters; |
39 | |
40 | int xbzrle_cache_resize(int64_t new_size, Error **errp); |
41 | uint64_t ram_bytes_remaining(void); |
42 | uint64_t ram_bytes_total(void); |
43 | |
44 | int multifd_save_setup(void); |
45 | void multifd_save_cleanup(void); |
46 | int multifd_load_setup(void); |
47 | int multifd_load_cleanup(Error **errp); |
48 | bool multifd_recv_all_channels_created(void); |
49 | bool multifd_recv_new_channel(QIOChannel *ioc, Error **errp); |
50 | |
51 | uint64_t ram_pagesize_summary(void); |
52 | int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len); |
53 | void acct_update_position(QEMUFile *f, size_t size, bool zero); |
54 | void ram_debug_dump_bitmap(unsigned long *todump, bool expected, |
55 | unsigned long pages); |
56 | void ram_postcopy_migrated_memory_release(MigrationState *ms); |
57 | /* For outgoing discard bitmap */ |
58 | int ram_postcopy_send_discard_bitmap(MigrationState *ms); |
59 | /* For incoming postcopy discard */ |
60 | int ram_discard_range(const char *block_name, uint64_t start, size_t length); |
61 | int ram_postcopy_incoming_init(MigrationIncomingState *mis); |
62 | |
63 | void ram_handle_compressed(void *host, uint8_t ch, uint64_t size); |
64 | |
65 | int ramblock_recv_bitmap_test(RAMBlock *rb, void *host_addr); |
66 | bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t byte_offset); |
67 | void ramblock_recv_bitmap_set(RAMBlock *rb, void *host_addr); |
68 | void ramblock_recv_bitmap_set_range(RAMBlock *rb, void *host_addr, size_t nr); |
69 | int64_t ramblock_recv_bitmap_send(QEMUFile *file, |
70 | const char *block_name); |
71 | int ram_dirty_bitmap_reload(MigrationState *s, RAMBlock *rb); |
72 | |
73 | /* ram cache */ |
74 | int colo_init_ram_cache(void); |
75 | void colo_release_ram_cache(void); |
76 | |
77 | #endif |
78 | |