f523e5aa5f
Move this CPR-specific code into a cpr file. While here, give the functions more significant names. This makes the new idea (after cpr-transfer) of having two parts to qmp_migrate slightly more obvious: either wait for the hangup or continue directly. Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Prasad Pandit <pjp@fedoraproject.org> Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-24-farosas@suse.de Signed-off-by: Fabiano Rosas <farosas@suse.de>
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
/*
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* Copyright (c) 2021, 2024 Oracle and/or its affiliates.
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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_CPR_H
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#define MIGRATION_CPR_H
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#include "qapi/qapi-types-migration.h"
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#include "io/channel.h"
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#include "qemu/queue.h"
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#define MIG_MODE_NONE -1
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#define QEMU_CPR_FILE_MAGIC 0x51435052
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#define QEMU_CPR_FILE_VERSION 0x00000001
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#define CPR_STATE "CprState"
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typedef QLIST_HEAD(CprFdList, CprFd) CprFdList;
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typedef QLIST_HEAD(CprVFIODeviceList, CprVFIODevice) CprVFIODeviceList;
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typedef struct CprState {
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CprFdList fds;
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CprVFIODeviceList vfio_devices;
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} CprState;
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extern CprState cpr_state;
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void cpr_save_fd(const char *name, int id, int fd);
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void cpr_delete_fd(const char *name, int id);
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int cpr_find_fd(const char *name, int id);
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void cpr_resave_fd(const char *name, int id, int fd);
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int cpr_open_fd(const char *path, int flags, const char *name, int id,
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Error **errp);
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typedef bool (*cpr_walk_fd_cb)(int fd);
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bool cpr_walk_fd(cpr_walk_fd_cb cb);
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MigMode cpr_get_incoming_mode(void);
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void cpr_set_incoming_mode(MigMode mode);
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bool cpr_is_incoming(void);
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bool cpr_state_save(MigrationChannel *channel, Error **errp);
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int cpr_state_load(MigrationChannel *channel, Error **errp);
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void cpr_state_close(void);
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struct QIOChannel *cpr_state_ioc(void);
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bool cpr_incoming_needed(void *opaque);
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int cpr_get_fd_param(const char *name, const char *fdname, int index,
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Error **errp);
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QEMUFile *cpr_transfer_output(MigrationChannel *channel, Error **errp);
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QEMUFile *cpr_transfer_input(MigrationChannel *channel, Error **errp);
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void cpr_transfer_add_hup_watch(MigrationState *s, QIOChannelFunc func,
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void *opaque);
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void cpr_transfer_source_destroy(MigrationState *s);
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void cpr_exec_init(void);
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QEMUFile *cpr_exec_output(Error **errp);
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QEMUFile *cpr_exec_input(Error **errp);
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bool cpr_exec_persist_state(QEMUFile *f, Error **errp);
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bool cpr_exec_has_state(void);
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void cpr_exec_unpersist_state(void);
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void cpr_exec_unpreserve_fds(void);
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#endif
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