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 "qemu-common.h" 33 #include "exec/cpu-common.h" 34 35 extern MigrationStats ram_counters; 36 extern XBZRLECacheStats xbzrle_counters; 37 38 int64_t xbzrle_cache_resize(int64_t new_size); 39 uint64_t ram_bytes_remaining(void); 40 uint64_t ram_bytes_total(void); 41 42 int multifd_save_setup(void); 43 int multifd_save_cleanup(Error **errp); 44 int multifd_load_setup(void); 45 int multifd_load_cleanup(Error **errp); 46 47 uint64_t ram_pagesize_summary(void); 48 int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len); 49 void acct_update_position(QEMUFile *f, size_t size, bool zero); 50 void ram_debug_dump_bitmap(unsigned long *todump, bool expected, 51 unsigned long pages); 52 void ram_postcopy_migrated_memory_release(MigrationState *ms); 53 /* For outgoing discard bitmap */ 54 int ram_postcopy_send_discard_bitmap(MigrationState *ms); 55 /* For incoming postcopy discard */ 56 int ram_discard_range(const char *block_name, uint64_t start, size_t length); 57 int ram_postcopy_incoming_init(MigrationIncomingState *mis); 58 59 void ram_handle_compressed(void *host, uint8_t ch, uint64_t size); 60 #endif 61