019d9e6cc4
Use it to update the current error of the migration stream if available and if not, simply print out the error. Next changes will update with an error to report. Reviewed-by: Avihai Horon <avihaih@nvidia.com> Acked-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Cédric Le Goater <clg@redhat.com>
115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
/*
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* QEMU migration miscellaneus exported functions
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*
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* Copyright IBM, Corp. 2008
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#ifndef MIGRATION_MISC_H
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#define MIGRATION_MISC_H
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#include "qemu/notify.h"
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#include "qapi/qapi-types-migration.h"
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#include "qapi/qapi-types-net.h"
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#include "migration/client-options.h"
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/* migration/ram.c */
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typedef enum PrecopyNotifyReason {
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PRECOPY_NOTIFY_SETUP = 0,
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PRECOPY_NOTIFY_BEFORE_BITMAP_SYNC = 1,
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PRECOPY_NOTIFY_AFTER_BITMAP_SYNC = 2,
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PRECOPY_NOTIFY_COMPLETE = 3,
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PRECOPY_NOTIFY_CLEANUP = 4,
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PRECOPY_NOTIFY_MAX = 5,
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} PrecopyNotifyReason;
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typedef struct PrecopyNotifyData {
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enum PrecopyNotifyReason reason;
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} PrecopyNotifyData;
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void precopy_infrastructure_init(void);
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void precopy_add_notifier(NotifierWithReturn *n);
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void precopy_remove_notifier(NotifierWithReturn *n);
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int precopy_notify(PrecopyNotifyReason reason, Error **errp);
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void ram_mig_init(void);
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void qemu_guest_free_page_hint(void *addr, size_t len);
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bool migrate_ram_is_ignored(RAMBlock *block);
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/* migration/block.c */
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AnnounceParameters *migrate_announce_params(void);
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/* migration/savevm.c */
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void dump_vmstate_json_to_file(FILE *out_fp);
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/* migration/migration.c */
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void migration_object_init(void);
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void migration_shutdown(void);
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bool migration_is_idle(void);
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bool migration_is_active(void);
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bool migration_is_device(void);
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bool migration_thread_is_self(void);
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bool migration_is_setup_or_active(void);
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typedef enum MigrationEventType {
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MIG_EVENT_PRECOPY_SETUP,
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MIG_EVENT_PRECOPY_DONE,
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MIG_EVENT_PRECOPY_FAILED,
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MIG_EVENT_MAX
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} MigrationEventType;
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typedef struct MigrationEvent {
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MigrationEventType type;
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} MigrationEvent;
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/*
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* A MigrationNotifyFunc may return an error code and an Error object,
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* but only when @e->type is MIG_EVENT_PRECOPY_SETUP. The code is an int
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* to allow for different failure modes and recovery actions.
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*/
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typedef int (*MigrationNotifyFunc)(NotifierWithReturn *notify,
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MigrationEvent *e, Error **errp);
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/*
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* Register the notifier @notify to be called when a migration event occurs
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* for MIG_MODE_NORMAL, as specified by the MigrationEvent passed to @func.
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* Notifiers may receive events in any of the following orders:
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* - MIG_EVENT_PRECOPY_SETUP -> MIG_EVENT_PRECOPY_DONE
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* - MIG_EVENT_PRECOPY_SETUP -> MIG_EVENT_PRECOPY_FAILED
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* - MIG_EVENT_PRECOPY_FAILED
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*/
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void migration_add_notifier(NotifierWithReturn *notify,
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MigrationNotifyFunc func);
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/*
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* Same as migration_add_notifier, but applies to be specified @mode.
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*/
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void migration_add_notifier_mode(NotifierWithReturn *notify,
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MigrationNotifyFunc func, MigMode mode);
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void migration_remove_notifier(NotifierWithReturn *notify);
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bool migration_is_running(void);
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void migration_file_set_error(int ret, Error *err);
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/* True if incoming migration entered POSTCOPY_INCOMING_DISCARD */
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bool migration_in_incoming_postcopy(void);
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/* True if incoming migration entered POSTCOPY_INCOMING_ADVISE */
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bool migration_incoming_postcopy_advised(void);
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/* True if background snapshot is active */
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bool migration_in_bg_snapshot(void);
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/* migration/block-dirty-bitmap.c */
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void dirty_bitmap_mig_init(void);
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#endif
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