usb/hcd-xhci: Split pci wrapper for xhci base model
[qemu.git] / migration / ram.h
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 bool ramblock_is_ignored(RAMBlock *block);
41 /* Should be holding either ram_list.mutex, or the RCU lock. */
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
50 int xbzrle_cache_resize(int64_t new_size, Error **errp);
51 uint64_t ram_bytes_remaining(void);
52 uint64_t ram_bytes_total(void);
53
54 uint64_t ram_pagesize_summary(void);
55 int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len);
56 void acct_update_position(QEMUFile *f, size_t size, bool zero);
57 void ram_debug_dump_bitmap(unsigned long *todump, bool expected,
58 unsigned long pages);
59 void ram_postcopy_migrated_memory_release(MigrationState *ms);
60 /* For outgoing discard bitmap */
61 int ram_postcopy_send_discard_bitmap(MigrationState *ms);
62 /* For incoming postcopy discard */
63 int ram_discard_range(const char *block_name, uint64_t start, size_t length);
64 int ram_postcopy_incoming_init(MigrationIncomingState *mis);
65
66 void ram_handle_compressed(void *host, uint8_t ch, uint64_t size);
67
68 int ramblock_recv_bitmap_test(RAMBlock *rb, void *host_addr);
69 bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t byte_offset);
70 void ramblock_recv_bitmap_set(RAMBlock *rb, void *host_addr);
71 void ramblock_recv_bitmap_set_range(RAMBlock *rb, void *host_addr, size_t nr);
72 int64_t ramblock_recv_bitmap_send(QEMUFile *file,
73 const char *block_name);
74 int ram_dirty_bitmap_reload(MigrationState *s, RAMBlock *rb);
75
76 /* ram cache */
77 int colo_init_ram_cache(void);
78 void colo_flush_ram_cache(void);
79 void colo_release_ram_cache(void);
80 void colo_incoming_start_dirty_log(void);
81
82 #endif