diff options
Diffstat (limited to 'include/migration')
| -rw-r--r-- | include/migration/migration.h | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/include/migration/migration.h b/include/migration/migration.h deleted file mode 100644 index 601e4ab354..0000000000 --- a/include/migration/migration.h +++ /dev/null @@ -1,164 +0,0 @@ -/* - * QEMU live migration - * - * Copyright IBM, Corp. 2008 - * - * Authors: - * Anthony Liguori <aliguori@us.ibm.com> - * - * This work is licensed under the terms of the GNU GPL, version 2. See - * the COPYING file in the top-level directory. - * - */ - -#ifndef QEMU_MIGRATION_H -#define QEMU_MIGRATION_H - -#include "qapi/qmp/qdict.h" -#include "qemu-common.h" -#include "qemu/thread.h" -#include "qemu/notify.h" -#include "qapi-types.h" -#include "exec/cpu-common.h" -#include "qemu/coroutine_int.h" - -/* State for the incoming migration */ -struct MigrationIncomingState { - QEMUFile *from_src_file; - - /* - * Free at the start of the main state load, set as the main thread finishes - * loading state. - */ - QemuEvent main_thread_load_event; - - size_t largest_page_size; - bool have_fault_thread; - QemuThread fault_thread; - QemuSemaphore fault_thread_sem; - - bool have_listen_thread; - QemuThread listen_thread; - QemuSemaphore listen_thread_sem; - - /* For the kernel to send us notifications */ - int userfault_fd; - /* To tell the fault_thread to quit */ - int userfault_quit_fd; - QEMUFile *to_src_file; - QemuMutex rp_mutex; /* We send replies from multiple threads */ - void *postcopy_tmp_page; - void *postcopy_tmp_zero_page; - - QEMUBH *bh; - - int state; - - bool have_colo_incoming_thread; - QemuThread colo_incoming_thread; - /* The coroutine we should enter (back) after failover */ - Coroutine *migration_incoming_co; - QemuSemaphore colo_incoming_sem; -}; - -MigrationIncomingState *migration_incoming_get_current(void); -void migration_incoming_state_destroy(void); - -struct MigrationState -{ - size_t bytes_xfer; - size_t xfer_limit; - QemuThread thread; - QEMUBH *cleanup_bh; - QEMUFile *to_dst_file; - - /* params from 'migrate-set-parameters' */ - MigrationParameters parameters; - - int state; - - /* State related to return path */ - struct { - QEMUFile *from_dst_file; - QemuThread rp_thread; - bool error; - } rp_state; - - double mbps; - int64_t total_time; - int64_t downtime; - int64_t expected_downtime; - bool enabled_capabilities[MIGRATION_CAPABILITY__MAX]; - int64_t xbzrle_cache_size; - int64_t setup_time; - - /* Flag set once the migration has been asked to enter postcopy */ - bool start_postcopy; - /* Flag set after postcopy has sent the device state */ - bool postcopy_after_devices; - - /* Flag set once the migration thread is running (and needs joining) */ - bool migration_thread_running; - - /* Flag set once the migration thread called bdrv_inactivate_all */ - bool block_inactive; - - /* The semaphore is used to notify COLO thread that failover is finished */ - QemuSemaphore colo_exit_sem; - - /* The semaphore is used to notify COLO thread to do checkpoint */ - QemuSemaphore colo_checkpoint_sem; - int64_t colo_checkpoint_time; - QEMUTimer *colo_delay_timer; - - /* The last error that occurred */ - Error *error; - /* Do we have to clean up -b/-i from old migrate parameters */ - /* This feature is deprecated and will be removed */ - bool must_remove_block_options; -}; - -void migrate_set_state(int *state, int old_state, int new_state); - -void migration_fd_process_incoming(QEMUFile *f); - -uint64_t migrate_max_downtime(void); - -void migrate_fd_error(MigrationState *s, const Error *error); - -void migrate_fd_connect(MigrationState *s); - -MigrationState *migrate_init(void); -bool migration_is_blocked(Error **errp); -/* True if outgoing migration has entered postcopy phase */ -bool migration_in_postcopy(void); -MigrationState *migrate_get_current(void); - -bool migrate_release_ram(void); -bool migrate_postcopy_ram(void); -bool migrate_zero_blocks(void); - -bool migrate_auto_converge(void); - -int migrate_use_xbzrle(void); -int64_t migrate_xbzrle_cache_size(void); -bool migrate_colo_enabled(void); - -bool migrate_use_block(void); -bool migrate_use_block_incremental(void); - -bool migrate_use_compression(void); -int migrate_compress_level(void); -int migrate_compress_threads(void); -int migrate_decompress_threads(void); -bool migrate_use_events(void); - -/* Sending on the return path - generic and then for each message type */ -void migrate_send_rp_shut(MigrationIncomingState *mis, - uint32_t value); -void migrate_send_rp_pong(MigrationIncomingState *mis, - uint32_t value); -void migrate_send_rp_req_pages(MigrationIncomingState *mis, const char* rbname, - ram_addr_t start, size_t len); - -#endif |