17b1e1a22SJuan Quintela /* 27b1e1a22SJuan Quintela * QEMU System Emulator 37b1e1a22SJuan Quintela * 47b1e1a22SJuan Quintela * Copyright (c) 2003-2008 Fabrice Bellard 57b1e1a22SJuan Quintela * Copyright (c) 2011-2015 Red Hat Inc 67b1e1a22SJuan Quintela * 77b1e1a22SJuan Quintela * Authors: 87b1e1a22SJuan Quintela * Juan Quintela <quintela@redhat.com> 97b1e1a22SJuan Quintela * 107b1e1a22SJuan Quintela * Permission is hereby granted, free of charge, to any person obtaining a copy 117b1e1a22SJuan Quintela * of this software and associated documentation files (the "Software"), to deal 127b1e1a22SJuan Quintela * in the Software without restriction, including without limitation the rights 137b1e1a22SJuan Quintela * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 147b1e1a22SJuan Quintela * copies of the Software, and to permit persons to whom the Software is 157b1e1a22SJuan Quintela * furnished to do so, subject to the following conditions: 167b1e1a22SJuan Quintela * 177b1e1a22SJuan Quintela * The above copyright notice and this permission notice shall be included in 187b1e1a22SJuan Quintela * all copies or substantial portions of the Software. 197b1e1a22SJuan Quintela * 207b1e1a22SJuan Quintela * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 217b1e1a22SJuan Quintela * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 227b1e1a22SJuan Quintela * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 237b1e1a22SJuan Quintela * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 247b1e1a22SJuan Quintela * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 257b1e1a22SJuan Quintela * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 267b1e1a22SJuan Quintela * THE SOFTWARE. 277b1e1a22SJuan Quintela */ 287b1e1a22SJuan Quintela 297b1e1a22SJuan Quintela #ifndef QEMU_MIGRATION_RAM_H 307b1e1a22SJuan Quintela #define QEMU_MIGRATION_RAM_H 317b1e1a22SJuan Quintela 327b1e1a22SJuan Quintela #include "qemu-common.h" 339af23989SMarkus Armbruster #include "qapi/qapi-types-migration.h" 347b1e1a22SJuan Quintela #include "exec/cpu-common.h" 3571bb07dbSJuan Quintela #include "io/channel.h" 367b1e1a22SJuan Quintela 379360447dSJuan Quintela extern MigrationStats ram_counters; 389360447dSJuan Quintela extern XBZRLECacheStats xbzrle_counters; 39*76e03000SXiao Guangrong extern CompressionStats compression_counters; 409360447dSJuan Quintela 41c9dede2dSJuan Quintela int xbzrle_cache_resize(int64_t new_size, Error **errp); 427b1e1a22SJuan Quintela uint64_t ram_bytes_remaining(void); 437b1e1a22SJuan Quintela uint64_t ram_bytes_total(void); 447b1e1a22SJuan Quintela 45f986c3d2SJuan Quintela int multifd_save_setup(void); 46f986c3d2SJuan Quintela int multifd_save_cleanup(Error **errp); 47f986c3d2SJuan Quintela int multifd_load_setup(void); 48f986c3d2SJuan Quintela int multifd_load_cleanup(Error **errp); 4962c1e0caSJuan Quintela bool multifd_recv_all_channels_created(void); 5081e62053SPeter Xu bool multifd_recv_new_channel(QIOChannel *ioc); 51f986c3d2SJuan Quintela 527b1e1a22SJuan Quintela uint64_t ram_pagesize_summary(void); 537b1e1a22SJuan Quintela int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len); 547b1e1a22SJuan Quintela void acct_update_position(QEMUFile *f, size_t size, bool zero); 557b1e1a22SJuan Quintela void ram_debug_dump_bitmap(unsigned long *todump, bool expected, 567b1e1a22SJuan Quintela unsigned long pages); 577b1e1a22SJuan Quintela void ram_postcopy_migrated_memory_release(MigrationState *ms); 587b1e1a22SJuan Quintela /* For outgoing discard bitmap */ 597b1e1a22SJuan Quintela int ram_postcopy_send_discard_bitmap(MigrationState *ms); 607b1e1a22SJuan Quintela /* For incoming postcopy discard */ 617b1e1a22SJuan Quintela int ram_discard_range(const char *block_name, uint64_t start, size_t length); 627b1e1a22SJuan Quintela int ram_postcopy_incoming_init(MigrationIncomingState *mis); 637b1e1a22SJuan Quintela 647b1e1a22SJuan Quintela void ram_handle_compressed(void *host, uint8_t ch, uint64_t size); 65f9494614SAlexey Perevalov 66f9494614SAlexey Perevalov int ramblock_recv_bitmap_test(RAMBlock *rb, void *host_addr); 671cba9f6eSDr. David Alan Gilbert bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t byte_offset); 68f9494614SAlexey Perevalov void ramblock_recv_bitmap_set(RAMBlock *rb, void *host_addr); 69f9494614SAlexey Perevalov void ramblock_recv_bitmap_set_range(RAMBlock *rb, void *host_addr, size_t nr); 70a335debbSPeter Xu int64_t ramblock_recv_bitmap_send(QEMUFile *file, 71a335debbSPeter Xu const char *block_name); 72a335debbSPeter Xu int ram_dirty_bitmap_reload(MigrationState *s, RAMBlock *rb); 73f9494614SAlexey Perevalov 747b1e1a22SJuan Quintela #endif 75