jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
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
36extern MigrationStats ram_counters;
37extern XBZRLECacheStats xbzrle_counters;
38extern CompressionStats compression_counters;
39
40int xbzrle_cache_resize(int64_t new_size, Error **errp);
41uint64_t ram_bytes_remaining(void);
42uint64_t ram_bytes_total(void);
43
44uint64_t ram_pagesize_summary(void);
45int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len);
46void acct_update_position(QEMUFile *f, size_t size, bool zero);
47void ram_debug_dump_bitmap(unsigned long *todump, bool expected,
48 unsigned long pages);
49void ram_postcopy_migrated_memory_release(MigrationState *ms);
50/* For outgoing discard bitmap */
51int ram_postcopy_send_discard_bitmap(MigrationState *ms);
52/* For incoming postcopy discard */
53int ram_discard_range(const char *block_name, uint64_t start, size_t length);
54int ram_postcopy_incoming_init(MigrationIncomingState *mis);
55
56void ram_handle_compressed(void *host, uint8_t ch, uint64_t size);
57
58int ramblock_recv_bitmap_test(RAMBlock *rb, void *host_addr);
59bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t byte_offset);
60void ramblock_recv_bitmap_set(RAMBlock *rb, void *host_addr);
61void ramblock_recv_bitmap_set_range(RAMBlock *rb, void *host_addr, size_t nr);
62int64_t ramblock_recv_bitmap_send(QEMUFile *file,
63 const char *block_name);
64int ram_dirty_bitmap_reload(MigrationState *s, RAMBlock *rb);
65
66/* ram cache */
67int colo_init_ram_cache(void);
68void colo_flush_ram_cache(void);
69void colo_release_ram_cache(void);
70void colo_incoming_start_dirty_log(void);
71
72#endif