--- /dev/null
+/*
+ * 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/error.h"
+#include "migration/vmstate.h"
+#include "qapi-types.h"
+#include "exec/cpu-common.h"
+
+#define QEMU_VM_FILE_MAGIC 0x5145564d
+#define QEMU_VM_FILE_VERSION_COMPAT 0x00000002
+#define QEMU_VM_FILE_VERSION 0x00000003
+
+#define QEMU_VM_EOF 0x00
+#define QEMU_VM_SECTION_START 0x01
+#define QEMU_VM_SECTION_PART 0x02
+#define QEMU_VM_SECTION_END 0x03
+#define QEMU_VM_SECTION_FULL 0x04
+#define QEMU_VM_SUBSECTION 0x05
+#define QEMU_VM_VMDESCRIPTION 0x06
+#define QEMU_VM_CONFIGURATION 0x07
+#define QEMU_VM_SECTION_FOOTER 0x7e
+
+struct MigrationParams {
+ bool blk;
+ bool shared;
+};
+
+typedef struct MigrationState MigrationState;
+
+typedef QLIST_HEAD(, LoadStateEntry) LoadStateEntry_Head;
+
+/* State for the incoming migration */
+struct MigrationIncomingState {
+ QEMUFile *file;
+
+ /* See savevm.c */
+ LoadStateEntry_Head loadvm_handlers;
+};
+
+MigrationIncomingState *migration_incoming_get_current(void);
+MigrationIncomingState *migration_incoming_state_new(QEMUFile *f);
+void migration_incoming_state_destroy(void);
+
+struct MigrationState
+{
+ int64_t bandwidth_limit;
+ size_t bytes_xfer;
+ size_t xfer_limit;
+ QemuThread thread;
+ QEMUBH *cleanup_bh;
+ QEMUFile *file;
+ int parameters[MIGRATION_PARAMETER_MAX];
+
+ int state;
+ MigrationParams params;
+ double mbps;
+ int64_t total_time;
+ int64_t downtime;
+ int64_t expected_downtime;
+ int64_t dirty_pages_rate;
+ int64_t dirty_bytes_rate;
+ bool enabled_capabilities[MIGRATION_CAPABILITY_MAX];
+ int64_t xbzrle_cache_size;
+ int64_t setup_time;
+ int64_t dirty_sync_count;
+};
+
+void process_incoming_migration(QEMUFile *f);
+
+void qemu_start_incoming_migration(const char *uri, Error **errp);
+
+uint64_t migrate_max_downtime(void);
+
+void exec_start_incoming_migration(const char *host_port, Error **errp);
+
+void exec_start_outgoing_migration(MigrationState *s, const char *host_port, Error **errp);
+
+void tcp_start_incoming_migration(const char *host_port, Error **errp);
+
+void tcp_start_outgoing_migration(MigrationState *s, const char *host_port, Error **errp);
+
+void unix_start_incoming_migration(const char *path, Error **errp);
+
+void unix_start_outgoing_migration(MigrationState *s, const char *path, Error **errp);
+
+void fd_start_incoming_migration(const char *path, Error **errp);
+
+void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp);
+
+void rdma_start_outgoing_migration(void *opaque, const char *host_port, Error **errp);
+
+void rdma_start_incoming_migration(const char *host_port, Error **errp);
+
+void migrate_fd_error(MigrationState *s);
+
+void migrate_fd_connect(MigrationState *s);
+
+int migrate_fd_close(MigrationState *s);
+
+void add_migration_state_change_notifier(Notifier *notify);
+void remove_migration_state_change_notifier(Notifier *notify);
+bool migration_in_setup(MigrationState *);
+bool migration_has_finished(MigrationState *);
+bool migration_has_failed(MigrationState *);
+MigrationState *migrate_get_current(void);
+
+void migrate_compress_threads_create(void);
+void migrate_compress_threads_join(void);
+void migrate_decompress_threads_create(void);
+void migrate_decompress_threads_join(void);
+uint64_t ram_bytes_remaining(void);
+uint64_t ram_bytes_transferred(void);
+uint64_t ram_bytes_total(void);
+void free_xbzrle_decoded_buf(void);
+
+void acct_update_position(QEMUFile *f, size_t size, bool zero);
+
+uint64_t dup_mig_bytes_transferred(void);
+uint64_t dup_mig_pages_transferred(void);
+uint64_t skipped_mig_bytes_transferred(void);
+uint64_t skipped_mig_pages_transferred(void);
+uint64_t norm_mig_bytes_transferred(void);
+uint64_t norm_mig_pages_transferred(void);
+uint64_t xbzrle_mig_bytes_transferred(void);
+uint64_t xbzrle_mig_pages_transferred(void);
+uint64_t xbzrle_mig_pages_overflow(void);
+uint64_t xbzrle_mig_pages_cache_miss(void);
+double xbzrle_mig_cache_miss_rate(void);
+
+void ram_handle_compressed(void *host, uint8_t ch, uint64_t size);
+
+/**
+ * @migrate_add_blocker - prevent migration from proceeding
+ *
+ * @reason - an error to be returned whenever migration is attempted
+ */
+void migrate_add_blocker(Error *reason);
+
+/**
+ * @migrate_del_blocker - remove a blocking error from migration
+ *
+ * @reason - the error blocking migration
+ */
+void migrate_del_blocker(Error *reason);
+
+bool migrate_zero_blocks(void);
+
+bool migrate_auto_converge(void);
+
+int xbzrle_encode_buffer(uint8_t *old_buf, uint8_t *new_buf, int slen,
+ uint8_t *dst, int dlen);
+int xbzrle_decode_buffer(uint8_t *src, int slen, uint8_t *dst, int dlen);
+
+int migrate_use_xbzrle(void);
+int64_t migrate_xbzrle_cache_size(void);
+
+int64_t xbzrle_cache_resize(int64_t new_size);
+
+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);
+
+void ram_control_before_iterate(QEMUFile *f, uint64_t flags);
+void ram_control_after_iterate(QEMUFile *f, uint64_t flags);
+void ram_control_load_hook(QEMUFile *f, uint64_t flags, void *data);
+
+/* Whenever this is found in the data stream, the flags
+ * will be passed to ram_control_load_hook in the incoming-migration
+ * side. This lets before_ram_iterate/after_ram_iterate add
+ * transport-specific sections to the RAM migration data.
+ */
+#define RAM_SAVE_FLAG_HOOK 0x80
+
+#define RAM_SAVE_CONTROL_NOT_SUPP -1000
+#define RAM_SAVE_CONTROL_DELAYED -2000
+
+size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset,
+ ram_addr_t offset, size_t size,
+ uint64_t *bytes_sent);
+
+void ram_mig_init(void);
+void savevm_skip_section_footers(void);
+void register_global_state(void);
+void global_state_set_optional(void);
+void savevm_skip_configuration(void);
+int global_state_store(void);
+void global_state_store_running(void);
+#endif
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