d5c5dacc70
Use help functions in qemu-socket.c for tcp migration,
which already support ipv6 addresses.
Currently errp will be set to UNDEFINED_ERROR when migration fails,
qemu would output "migration failed: ...", and current user can
see a message("An undefined error has occurred") in monitor.
This patch changed tcp_start_outgoing_migration()/inet_connect()
/inet_connect_opts(), socket error would be passed back,
then current user can see a meaningful err message in monitor.
Qemu will exit if listening fails, so output socket error
to qemu stderr.
For IPv6 brackets must be mandatory if you require a port.
Referencing to RFC5952, the recommended format is:
[2312::8274]:5200
test status: Successed
listen side: qemu-kvm .... -incoming tcp:[2312::8274]:5200
client side: qemu-kvm ...
(qemu) migrate -d tcp:[2312::8274]:5200
Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
/*
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* QEMU live migration
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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 QEMU_MIGRATION_H
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#define QEMU_MIGRATION_H
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#include "qdict.h"
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#include "qemu-common.h"
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#include "notify.h"
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#include "error.h"
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typedef struct MigrationState MigrationState;
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struct MigrationState
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{
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int64_t bandwidth_limit;
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QEMUFile *file;
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int fd;
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int state;
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int (*get_error)(MigrationState *s);
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int (*close)(MigrationState *s);
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int (*write)(MigrationState *s, const void *buff, size_t size);
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void *opaque;
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int blk;
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int shared;
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};
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void process_incoming_migration(QEMUFile *f);
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int qemu_start_incoming_migration(const char *uri, Error **errp);
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uint64_t migrate_max_downtime(void);
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void do_info_migrate_print(Monitor *mon, const QObject *data);
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void do_info_migrate(Monitor *mon, QObject **ret_data);
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int exec_start_incoming_migration(const char *host_port);
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int exec_start_outgoing_migration(MigrationState *s, const char *host_port);
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int tcp_start_incoming_migration(const char *host_port, Error **errp);
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int tcp_start_outgoing_migration(MigrationState *s, const char *host_port,
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Error **errp);
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int unix_start_incoming_migration(const char *path);
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int unix_start_outgoing_migration(MigrationState *s, const char *path);
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int fd_start_incoming_migration(const char *path);
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int fd_start_outgoing_migration(MigrationState *s, const char *fdname);
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void migrate_fd_error(MigrationState *s);
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void migrate_fd_connect(MigrationState *s);
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void add_migration_state_change_notifier(Notifier *notify);
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void remove_migration_state_change_notifier(Notifier *notify);
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bool migration_is_active(MigrationState *);
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bool migration_has_finished(MigrationState *);
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bool migration_has_failed(MigrationState *);
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uint64_t ram_bytes_remaining(void);
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uint64_t ram_bytes_transferred(void);
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uint64_t ram_bytes_total(void);
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int ram_save_live(QEMUFile *f, int stage, void *opaque);
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int ram_load(QEMUFile *f, void *opaque, int version_id);
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/**
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* @migrate_add_blocker - prevent migration from proceeding
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*
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* @reason - an error to be returned whenever migration is attempted
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*/
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void migrate_add_blocker(Error *reason);
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/**
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* @migrate_del_blocker - remove a blocking error from migration
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*
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* @reason - the error blocking migration
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*/
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void migrate_del_blocker(Error *reason);
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#endif
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