qemu/include/migration/misc.h
David Hildenbrand f161c88a03 migration/ram: Expose ramblock_is_ignored() as migrate_ram_is_ignored()
virtio-mem wants to know whether it should not mess with the RAMBlock
content (e.g., discard RAM, preallocate memory) on incoming migration.

So let's expose that function as migrate_ram_is_ignored() in
migration/misc.h

Message-ID: <20230706075612.67404-4-david@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Tested-by: Mario Casquero <mcasquer@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2023-07-12 09:25:37 +02:00

81 lines
2.2 KiB
C

/*
* QEMU migration miscellaneus exported functions
*
* 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 MIGRATION_MISC_H
#define MIGRATION_MISC_H
#include "qemu/notify.h"
#include "qapi/qapi-types-net.h"
/* migration/ram.c */
typedef enum PrecopyNotifyReason {
PRECOPY_NOTIFY_SETUP = 0,
PRECOPY_NOTIFY_BEFORE_BITMAP_SYNC = 1,
PRECOPY_NOTIFY_AFTER_BITMAP_SYNC = 2,
PRECOPY_NOTIFY_COMPLETE = 3,
PRECOPY_NOTIFY_CLEANUP = 4,
PRECOPY_NOTIFY_MAX = 5,
} PrecopyNotifyReason;
typedef struct PrecopyNotifyData {
enum PrecopyNotifyReason reason;
Error **errp;
} PrecopyNotifyData;
void precopy_infrastructure_init(void);
void precopy_add_notifier(NotifierWithReturn *n);
void precopy_remove_notifier(NotifierWithReturn *n);
int precopy_notify(PrecopyNotifyReason reason, Error **errp);
void ram_mig_init(void);
void qemu_guest_free_page_hint(void *addr, size_t len);
bool migrate_ram_is_ignored(RAMBlock *block);
/* migration/block.c */
#ifdef CONFIG_LIVE_BLOCK_MIGRATION
void blk_mig_init(void);
#else
static inline void blk_mig_init(void) {}
#endif
AnnounceParameters *migrate_announce_params(void);
/* migration/savevm.c */
void dump_vmstate_json_to_file(FILE *out_fp);
/* migration/migration.c */
void migration_object_init(void);
void migration_shutdown(void);
bool migration_is_idle(void);
bool migration_is_active(MigrationState *);
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 *);
/* ...and after the device transmission */
bool migration_in_postcopy_after_devices(MigrationState *);
/* True if incoming migration entered POSTCOPY_INCOMING_DISCARD */
bool migration_in_incoming_postcopy(void);
/* True if incoming migration entered POSTCOPY_INCOMING_ADVISE */
bool migration_incoming_postcopy_advised(void);
/* True if background snapshot is active */
bool migration_in_bg_snapshot(void);
/* migration/block-dirty-bitmap.c */
void dirty_bitmap_mig_init(void);
#endif