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Wed, 1 Jun 2022 14:50:25 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1654087922; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=wsGoOx+L4jv5WEUOCSpuDxxhNj4kTHsRSeK/JEq2UOc=; b=LI7CFEDc8Ja0bV+cyUD0DnIxpRKfBvXY7gffczBHJ9fBas68L4qmaEuBG9JJIQICgaY2rf dgRrqK9yhtlf9VmOney83mTkvCpwpyGLIv4wRlqBEeE0linAAXOCClBRLo6eB6Tn3jtOlY JYUitxpvwzUvqzT4fBHFvFFstcR4Ock= X-MC-Unique: oMe1BREdPK2kQZLLJtpIRg-1 X-Original-To: libvir-list@listman.corp.redhat.com From: Jiri Denemark To: libvir-list@redhat.com Subject: [libvirt PATCH v2 20/81] qemu: Handle 'postcopy-paused' migration state Date: Wed, 1 Jun 2022 14:49:20 +0200 Message-Id: In-Reply-To: References: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.85 on 10.11.54.9 X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libvir-list-bounces@redhat.com Sender: "libvir-list" X-Scanned-By: MIMEDefang 2.85 on 10.11.54.7 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=libvir-list-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1654087924102100001 Content-Type: text/plain; charset="utf-8" When connection breaks during post-copy migration, QEMU enters 'postcopy-paused' state. We need to handle this state and make the situation visible to upper layers. Signed-off-by: Jiri Denemark Reviewed-by: Peter Krempa --- Notes: Version 2: - rebased on top of newly added "qemu: Use switch in qemuProcessHandleMigrationStatus" src/hypervisor/domain_job.c | 1 + src/hypervisor/domain_job.h | 1 + src/qemu/qemu_driver.c | 1 + src/qemu/qemu_migration.c | 11 +++++++++++ src/qemu/qemu_monitor.c | 1 + src/qemu/qemu_monitor.h | 1 + src/qemu/qemu_monitor_json.c | 1 + src/qemu/qemu_process.c | 11 +++++++++++ 8 files changed, 28 insertions(+) diff --git a/src/hypervisor/domain_job.c b/src/hypervisor/domain_job.c index ff4e008cb5..49867c3982 100644 --- a/src/hypervisor/domain_job.c +++ b/src/hypervisor/domain_job.c @@ -93,6 +93,7 @@ virDomainJobStatusToType(virDomainJobStatus status) case VIR_DOMAIN_JOB_STATUS_MIGRATING: case VIR_DOMAIN_JOB_STATUS_HYPERVISOR_COMPLETED: case VIR_DOMAIN_JOB_STATUS_POSTCOPY: + case VIR_DOMAIN_JOB_STATUS_POSTCOPY_PAUSED: case VIR_DOMAIN_JOB_STATUS_PAUSED: return VIR_DOMAIN_JOB_UNBOUNDED; =20 diff --git a/src/hypervisor/domain_job.h b/src/hypervisor/domain_job.h index db8b8b1390..fce35ffbf5 100644 --- a/src/hypervisor/domain_job.h +++ b/src/hypervisor/domain_job.h @@ -78,6 +78,7 @@ typedef enum { VIR_DOMAIN_JOB_STATUS_HYPERVISOR_COMPLETED, VIR_DOMAIN_JOB_STATUS_PAUSED, VIR_DOMAIN_JOB_STATUS_POSTCOPY, + VIR_DOMAIN_JOB_STATUS_POSTCOPY_PAUSED, VIR_DOMAIN_JOB_STATUS_COMPLETED, VIR_DOMAIN_JOB_STATUS_FAILED, VIR_DOMAIN_JOB_STATUS_CANCELED, diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 4f9eb7b987..28cb454ab7 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -12540,6 +12540,7 @@ qemuDomainGetJobInfoMigrationStats(virQEMUDriver *d= river, case VIR_DOMAIN_JOB_STATUS_HYPERVISOR_COMPLETED: case VIR_DOMAIN_JOB_STATUS_POSTCOPY: case VIR_DOMAIN_JOB_STATUS_PAUSED: + case VIR_DOMAIN_JOB_STATUS_POSTCOPY_PAUSED: if (qemuMigrationAnyFetchStats(driver, vm, VIR_ASYNC_JOB_NONE, jobData, NULL) < 0) return -1; diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index f81d1e65ff..de4be0e7f9 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -1747,6 +1747,10 @@ qemuMigrationUpdateJobType(virDomainJobData *jobData) jobData->status =3D VIR_DOMAIN_JOB_STATUS_POSTCOPY; break; =20 + case QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY_PAUSED: + jobData->status =3D VIR_DOMAIN_JOB_STATUS_POSTCOPY_PAUSED; + break; + case QEMU_MONITOR_MIGRATION_STATUS_COMPLETED: jobData->status =3D VIR_DOMAIN_JOB_STATUS_HYPERVISOR_COMPLETED; break; @@ -1871,6 +1875,12 @@ qemuMigrationJobCheckStatus(virQEMUDriver *driver, qemuMigrationJobName(vm), _("canceled by client")); return -1; =20 + case VIR_DOMAIN_JOB_STATUS_POSTCOPY_PAUSED: + virReportError(VIR_ERR_OPERATION_FAILED, _("%s: %s"), + qemuMigrationJobName(vm), + _("post-copy phase failed")); + return -1; + case VIR_DOMAIN_JOB_STATUS_COMPLETED: case VIR_DOMAIN_JOB_STATUS_ACTIVE: case VIR_DOMAIN_JOB_STATUS_MIGRATING: @@ -1973,6 +1983,7 @@ qemuMigrationAnyCompleted(virQEMUDriver *driver, =20 case VIR_DOMAIN_JOB_STATUS_FAILED: case VIR_DOMAIN_JOB_STATUS_CANCELED: + case VIR_DOMAIN_JOB_STATUS_POSTCOPY_PAUSED: /* QEMU aborted the migration. */ return -1; =20 diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c index 2cfe9dbb00..8d0f54e4a0 100644 --- a/src/qemu/qemu_monitor.c +++ b/src/qemu/qemu_monitor.c @@ -149,6 +149,7 @@ VIR_ENUM_IMPL(qemuMonitorMigrationStatus, "inactive", "setup", "active", "pre-switchover", "device", "postcopy-active", + "postcopy-paused", "completed", "failed", "cancelling", "cancelled", "wait-unplug", diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h index be341d5196..90532962fe 100644 --- a/src/qemu/qemu_monitor.h +++ b/src/qemu/qemu_monitor.h @@ -795,6 +795,7 @@ typedef enum { QEMU_MONITOR_MIGRATION_STATUS_PRE_SWITCHOVER, QEMU_MONITOR_MIGRATION_STATUS_DEVICE, QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY, + QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY_PAUSED, QEMU_MONITOR_MIGRATION_STATUS_COMPLETED, QEMU_MONITOR_MIGRATION_STATUS_ERROR, QEMU_MONITOR_MIGRATION_STATUS_CANCELLING, diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index dc05dfd047..ffff9e7103 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -3242,6 +3242,7 @@ qemuMonitorJSONGetMigrationStatsReply(virJSONValue *r= eply, =20 case QEMU_MONITOR_MIGRATION_STATUS_ACTIVE: case QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY: + case QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY_PAUSED: case QEMU_MONITOR_MIGRATION_STATUS_COMPLETED: case QEMU_MONITOR_MIGRATION_STATUS_CANCELLING: case QEMU_MONITOR_MIGRATION_STATUS_PRE_SWITCHOVER: diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index f1264909de..6acf5c7881 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -1513,6 +1513,17 @@ qemuProcessHandleMigrationStatus(qemuMonitor *mon G_= GNUC_UNUSED, } break; =20 + case QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY_PAUSED: + if (priv->job.asyncJob =3D=3D VIR_ASYNC_JOB_MIGRATION_OUT && + state =3D=3D VIR_DOMAIN_PAUSED) { + /* At this point no thread is watching the migration progress = on + * the source as it is just waiting for the Finish phase to en= d. + * Thus we need to handle the event here. */ + qemuMigrationSrcPostcopyFailed(vm); + qemuDomainSaveStatus(vm); + } + break; + case QEMU_MONITOR_MIGRATION_STATUS_INACTIVE: case QEMU_MONITOR_MIGRATION_STATUS_SETUP: case QEMU_MONITOR_MIGRATION_STATUS_ACTIVE: --=20 2.35.1