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511b786d13
migration_completion_precopy() reports its error through the Error **errp argument, so its int return value carries no information beyond success/failure. Convert it to return a bool, matching the common convention. Convert its underlying helper qemu_savevm_state_complete_precopy() likewise, and in turn qemu_savevm_state_non_iterable(), which it calls. Adjust all callers accordingly. Refactor and clean migration_completion() code too, which no longer needs to track int return values. Signed-off-by: Avihai Horon <avihaih@nvidia.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/20260706085211.13905-16-avihaih@nvidia.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
85 lines
3.6 KiB
C
85 lines
3.6 KiB
C
/*
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* QEMU save vm functions
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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* Copyright (c) 2009-2017 Red Hat Inc
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*
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* Authors:
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* Juan Quintela <quintela@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef MIGRATION_SAVEVM_H
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#define MIGRATION_SAVEVM_H
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#include "migration/register.h"
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#define QEMU_VM_FILE_MAGIC 0x5145564d
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#define QEMU_VM_FILE_VERSION_COMPAT 0x00000002
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#define QEMU_VM_FILE_VERSION 0x00000003
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#define QEMU_VM_EOF 0x00
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#define QEMU_VM_SECTION_START 0x01
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#define QEMU_VM_SECTION_PART 0x02
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#define QEMU_VM_SECTION_END 0x03
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#define QEMU_VM_SECTION_FULL 0x04
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#define QEMU_VM_SUBSECTION 0x05
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#define QEMU_VM_VMDESCRIPTION 0x06
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#define QEMU_VM_CONFIGURATION 0x07
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#define QEMU_VM_COMMAND 0x08
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#define QEMU_VM_SECTION_FOOTER 0x7e
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#define QEMU_VM_PING_PACKAGED_LOADED 0x42
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bool qemu_savevm_state_blocked(Error **errp);
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void qemu_savevm_non_migratable_list(strList **reasons);
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int qemu_savevm_state_prepare(Error **errp);
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int qemu_savevm_state_do_setup(QEMUFile *f, Error **errp);
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bool qemu_savevm_state_guest_unplug_pending(void);
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int qemu_savevm_state_resume_prepare(MigrationState *s);
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void qemu_savevm_send_header(QEMUFile *f);
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void qemu_savevm_state_header(QEMUFile *f);
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int qemu_savevm_state_iterate(QEMUFile *f, bool postcopy);
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void qemu_savevm_state_cleanup(void);
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void qemu_savevm_state_complete_postcopy(QEMUFile *f);
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bool qemu_savevm_state_complete_precopy(MigrationState *s, Error **errp);
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void qemu_savevm_query_pending_iter(MigrationState *s, MigPendingData *pending,
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bool exact);
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bool qemu_savevm_query_pending_final(MigrationState *s,
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MigPendingData *pending, Error **errp);
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int qemu_savevm_state_complete_precopy_iterable(QEMUFile *f, bool in_postcopy);
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bool qemu_savevm_state_postcopy_prepare(QEMUFile *f, Error **errp);
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void qemu_savevm_state_end(QEMUFile *f);
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void qemu_savevm_state_end_precopy(MigrationState *s, QEMUFile *f);
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void qemu_savevm_send_ping(QEMUFile *f, uint32_t value);
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void qemu_savevm_send_open_return_path(QEMUFile *f);
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int qemu_savevm_send_packaged(QEMUFile *f, const uint8_t *buf, size_t len);
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void qemu_savevm_send_postcopy_advise(QEMUFile *f);
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void qemu_savevm_send_postcopy_listen(QEMUFile *f);
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void qemu_savevm_send_postcopy_run(QEMUFile *f);
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void qemu_savevm_send_postcopy_resume(QEMUFile *f);
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void qemu_savevm_send_recv_bitmap(QEMUFile *f, char *block_name);
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void qemu_savevm_maybe_send_switchover_start(QEMUFile *f);
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void qemu_savevm_send_postcopy_ram_discard(QEMUFile *f, const char *name,
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uint16_t len,
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uint64_t *start_list,
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uint64_t *length_list);
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int qemu_save_device_state(QEMUFile *f, Error **errp);
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int qemu_loadvm_state(QEMUFile *f, Error **errp);
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void qemu_loadvm_state_cleanup(MigrationIncomingState *mis);
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int qemu_loadvm_state_main(QEMUFile *f, MigrationIncomingState *mis,
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Error **errp);
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int qemu_load_device_state(QEMUFile *f, Error **errp);
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int qemu_loadvm_approve_switchover(const char *approver);
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bool qemu_savevm_state_non_iterable(QEMUFile *f, Error **errp);
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int qemu_savevm_state_non_iterable_early(QEMUFile *f,
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JSONWriter *vmdesc,
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Error **errp);
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bool qemu_loadvm_load_state_buffer(const char *idstr, uint32_t instance_id,
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char *buf, size_t len, Error **errp);
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#endif
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