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d57485f73a
Migrating domains with disks using cache != none is unsafe unless the disk images are stored on coherent clustered filesystem. Thus we forbid migrating such domains unless VIR_MIGRATE_UNSAFE flags is used.
153 lines
6.2 KiB
C
153 lines
6.2 KiB
C
/*
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* qemu_migration.h: QEMU migration handling
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*
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* Copyright (C) 2006-2011 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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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 "qemu_conf.h"
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# include "qemu_domain.h"
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/* All supported qemu migration flags. */
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# define QEMU_MIGRATION_FLAGS \
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(VIR_MIGRATE_LIVE | \
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VIR_MIGRATE_PEER2PEER | \
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VIR_MIGRATE_TUNNELLED | \
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VIR_MIGRATE_PERSIST_DEST | \
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VIR_MIGRATE_UNDEFINE_SOURCE | \
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VIR_MIGRATE_PAUSED | \
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VIR_MIGRATE_NON_SHARED_DISK | \
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VIR_MIGRATE_NON_SHARED_INC | \
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VIR_MIGRATE_CHANGE_PROTECTION | \
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VIR_MIGRATE_UNSAFE)
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enum qemuMigrationJobPhase {
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QEMU_MIGRATION_PHASE_NONE = 0,
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QEMU_MIGRATION_PHASE_PERFORM2,
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QEMU_MIGRATION_PHASE_BEGIN3,
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QEMU_MIGRATION_PHASE_PERFORM3,
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QEMU_MIGRATION_PHASE_PERFORM3_DONE,
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QEMU_MIGRATION_PHASE_CONFIRM3_CANCELLED,
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QEMU_MIGRATION_PHASE_CONFIRM3,
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QEMU_MIGRATION_PHASE_PREPARE,
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QEMU_MIGRATION_PHASE_FINISH2,
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QEMU_MIGRATION_PHASE_FINISH3,
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QEMU_MIGRATION_PHASE_LAST
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};
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VIR_ENUM_DECL(qemuMigrationJobPhase)
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int qemuMigrationJobStart(struct qemud_driver *driver,
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virDomainObjPtr vm,
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enum qemuDomainAsyncJob job)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
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void qemuMigrationJobSetPhase(struct qemud_driver *driver,
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virDomainObjPtr vm,
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enum qemuMigrationJobPhase phase)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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void qemuMigrationJobStartPhase(struct qemud_driver *driver,
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virDomainObjPtr vm,
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enum qemuMigrationJobPhase phase)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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int qemuMigrationJobContinue(virDomainObjPtr obj)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
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bool qemuMigrationJobIsActive(virDomainObjPtr vm,
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enum qemuDomainAsyncJob job)
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ATTRIBUTE_NONNULL(1);
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int qemuMigrationJobFinish(struct qemud_driver *driver, virDomainObjPtr obj)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
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int qemuMigrationSetOffline(struct qemud_driver *driver,
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virDomainObjPtr vm);
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char *qemuMigrationBegin(struct qemud_driver *driver,
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virDomainObjPtr vm,
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const char *xmlin,
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const char *dname,
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char **cookieout,
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int *cookieoutlen,
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unsigned long flags);
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int qemuMigrationPrepareTunnel(struct qemud_driver *driver,
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virConnectPtr dconn,
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const char *cookiein,
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int cookieinlen,
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char **cookieout,
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int *cookieoutlen,
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virStreamPtr st,
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const char *dname,
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const char *dom_xml);
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int qemuMigrationPrepareDirect(struct qemud_driver *driver,
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virConnectPtr dconn,
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const char *cookiein,
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int cookieinlen,
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char **cookieout,
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int *cookieoutlen,
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const char *uri_in,
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char **uri_out,
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const char *dname,
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const char *dom_xml);
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int qemuMigrationPerform(struct qemud_driver *driver,
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virConnectPtr conn,
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virDomainObjPtr vm,
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const char *xmlin,
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const char *dconnuri,
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const char *uri,
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const char *cookiein,
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int cookieinlen,
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char **cookieout,
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int *cookieoutlen,
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unsigned long flags,
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const char *dname,
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unsigned long resource,
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bool v3proto);
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virDomainPtr qemuMigrationFinish(struct qemud_driver *driver,
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virConnectPtr dconn,
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virDomainObjPtr vm,
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const char *cookiein,
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int cookieinlen,
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char **cookieout,
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int *cookieoutlen,
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unsigned long flags,
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int retcode,
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bool v3proto);
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int qemuMigrationConfirm(struct qemud_driver *driver,
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virConnectPtr conn,
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virDomainObjPtr vm,
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const char *cookiein,
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int cookieinlen,
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unsigned int flags,
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int retcode);
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int qemuMigrationToFile(struct qemud_driver *driver, virDomainObjPtr vm,
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int fd, off_t offset, const char *path,
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const char *compressor,
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bool bypassSecurityDriver,
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enum qemuDomainAsyncJob asyncJob)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(5)
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ATTRIBUTE_RETURN_CHECK;
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#endif /* __QEMU_MIGRATION_H__ */
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