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libvirt-8.5.0-4.el9 

- qemu: Pass migration flags to qemuMigrationParamsApply (rhbz#2111070)
- qemu_migration_params: Replace qemuMigrationParamTypes array (rhbz#2111070)
- qemu_migration: Pass migParams to qemuMigrationSrcResume (rhbz#2111070)
- qemu_migration: Apply max-postcopy-bandwidth on post-copy resume (rhbz#2111070)
- qemu: Always assume support for QEMU_CAPS_MIGRATION_PARAM_XBZRLE_CACHE_SIZE (rhbz#2107892)
- qemu_migration: Store original migration params in status XML (rhbz#2107892)
- qemu_migration_params: Refactor qemuMigrationParamsApply (rhbz#2107892)
- qemu_migration_params: Refactor qemuMigrationParamsReset (rhbz#2107892)
- qemu_migration_params: Avoid deadlock in qemuMigrationParamsReset (rhbz#2107892)
- qemu: Restore original memory locking limit on reconnect (rhbz#2107424)
- qemu: Properly release job in qemuDomainSaveInternal (rhbz#1497907)
- qemu: don't call qemuMigrationSrcIsAllowedHostdev() from qemuMigrationDstPrepareFresh() (rhbz#1497907)

Resolves: rhbz#2107424, rhbz#2107892, rhbz#2111070
Related: rhbz#1497907
This commit is contained in:
Jiri Denemark 2022-07-29 14:44:47 +02:00
parent 1dc8926705
commit fe7f49b39b
13 changed files with 1300 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

183
libvirt-qemu-Always-assume-support-for-QEMU_CAPS_MIGRATION_PARAM_XBZRLE_CACHE_SIZE.patch Normal file
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@ -0,0 +1,183 @@
From b020ddee84458afd8de70d9f296b91fa2b6a95fd Mon Sep 17 00:00:00 2001
Message-Id: <b020ddee84458afd8de70d9f296b91fa2b6a95fd@dist-git>
From: Peter Krempa <pkrempa@redhat.com>
Date: Fri, 15 Jul 2022 14:16:54 +0200
Subject: [PATCH] qemu: Always assume support for
QEMU_CAPS_MIGRATION_PARAM_XBZRLE_CACHE_SIZE
The 'xbzrle-cache-size' parameter was added in qemu-2.11 thus all
supported qemu versions now use the new code path.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit 06e0ba3da71ec6c58024efe57d0f55d3d1352d60)
This commit is not strictly needed for fixing the following BZ, but it
removes a code which will be never executed in RHEL 9 and backporting it
avoids conflicts with the actual bug fix.
https://bugzilla.redhat.com/show_bug.cgi?id=2107892
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
src/qemu/qemu_driver.c | 56 +++++++++-----------------------
src/qemu/qemu_migration_params.c | 18 ----------
2 files changed, 16 insertions(+), 58 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 17e4c23199..256e126ae1 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -13172,10 +13172,8 @@ qemuDomainMigrateGetCompressionCache(virDomainPtr dom,
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
- qemuDomainObjPrivate *priv;
g_autoptr(qemuMigrationParams) migParams = NULL;
int ret = -1;
- int rc;
virCheckFlags(0, -1);
@@ -13191,8 +13189,6 @@ qemuDomainMigrateGetCompressionCache(virDomainPtr dom,
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
- priv = vm->privateData;
-
if (!qemuMigrationCapsGet(vm, QEMU_MIGRATION_CAP_XBZRLE)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("Compressed migration is not supported by "
@@ -13200,22 +13196,14 @@ qemuDomainMigrateGetCompressionCache(virDomainPtr dom,
goto endjob;
}
- if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_PARAM_XBZRLE_CACHE_SIZE)) {
- if (qemuMigrationParamsFetch(driver, vm, VIR_ASYNC_JOB_NONE,
- &migParams) < 0)
- goto endjob;
+ if (qemuMigrationParamsFetch(driver, vm, VIR_ASYNC_JOB_NONE,
+ &migParams) < 0)
+ goto endjob;
- if (qemuMigrationParamsGetULL(migParams,
- QEMU_MIGRATION_PARAM_XBZRLE_CACHE_SIZE,
- cacheSize) < 0)
- goto endjob;
- } else {
- qemuDomainObjEnterMonitor(driver, vm);
- rc = qemuMonitorGetMigrationCacheSize(priv->mon, cacheSize);
- qemuDomainObjExitMonitor(vm);
- if (rc < 0)
- goto endjob;
- }
+ if (qemuMigrationParamsGetULL(migParams,
+ QEMU_MIGRATION_PARAM_XBZRLE_CACHE_SIZE,
+ cacheSize) < 0)
+ goto endjob;
ret = 0;
@@ -13234,10 +13222,8 @@ qemuDomainMigrateSetCompressionCache(virDomainPtr dom,
{
virQEMUDriver *driver = dom->conn->privateData;
virDomainObj *vm;
- qemuDomainObjPrivate *priv;
g_autoptr(qemuMigrationParams) migParams = NULL;
int ret = -1;
- int rc;
virCheckFlags(0, -1);
@@ -13253,8 +13239,6 @@ qemuDomainMigrateSetCompressionCache(virDomainPtr dom,
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
- priv = vm->privateData;
-
if (!qemuMigrationCapsGet(vm, QEMU_MIGRATION_CAP_XBZRLE)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("Compressed migration is not supported by "
@@ -13263,25 +13247,17 @@ qemuDomainMigrateSetCompressionCache(virDomainPtr dom,
}
VIR_DEBUG("Setting compression cache to %llu B", cacheSize);
- if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_PARAM_XBZRLE_CACHE_SIZE)) {
- if (!(migParams = qemuMigrationParamsNew()))
- goto endjob;
+ if (!(migParams = qemuMigrationParamsNew()))
+ goto endjob;
- if (qemuMigrationParamsSetULL(migParams,
- QEMU_MIGRATION_PARAM_XBZRLE_CACHE_SIZE,
- cacheSize) < 0)
- goto endjob;
+ if (qemuMigrationParamsSetULL(migParams,
+ QEMU_MIGRATION_PARAM_XBZRLE_CACHE_SIZE,
+ cacheSize) < 0)
+ goto endjob;
- if (qemuMigrationParamsApply(driver, vm, VIR_ASYNC_JOB_NONE,
- migParams, 0) < 0)
- goto endjob;
- } else {
- qemuDomainObjEnterMonitor(driver, vm);
- rc = qemuMonitorSetMigrationCacheSize(priv->mon, cacheSize);
- qemuDomainObjExitMonitor(vm);
- if (rc < 0)
- goto endjob;
- }
+ if (qemuMigrationParamsApply(driver, vm, VIR_ASYNC_JOB_NONE,
+ migParams, 0) < 0)
+ goto endjob;
ret = 0;
diff --git a/src/qemu/qemu_migration_params.c b/src/qemu/qemu_migration_params.c
index 6ea0bde13a..0bce358ac3 100644
--- a/src/qemu/qemu_migration_params.c
+++ b/src/qemu/qemu_migration_params.c
@@ -886,10 +886,8 @@ qemuMigrationParamsApply(virQEMUDriver *driver,
unsigned long apiFlags)
{
qemuDomainObjPrivate *priv = vm->privateData;
- bool xbzrleCacheSize_old = false;
g_autoptr(virJSONValue) params = NULL;
g_autoptr(virJSONValue) caps = NULL;
- qemuMigrationParam xbzrle = QEMU_MIGRATION_PARAM_XBZRLE_CACHE_SIZE;
bool postcopyResume = !!(apiFlags & VIR_MIGRATE_POSTCOPY_RESUME);
int ret = -1;
@@ -917,19 +915,6 @@ qemuMigrationParamsApply(virQEMUDriver *driver,
}
}
- /* If QEMU is too old to support xbzrle-cache-size migration parameter,
- * we need to set it via migrate-set-cache-size and tell
- * qemuMonitorSetMigrationParams to ignore this parameter.
- */
- if (migParams->params[xbzrle].set &&
- !virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_PARAM_XBZRLE_CACHE_SIZE)) {
- if (qemuMonitorSetMigrationCacheSize(priv->mon,
- migParams->params[xbzrle].value.ull) < 0)
- goto cleanup;
- xbzrleCacheSize_old = true;
- migParams->params[xbzrle].set = false;
- }
-
if (!(params = qemuMigrationParamsToJSON(migParams, postcopyResume)))
goto cleanup;
@@ -942,9 +927,6 @@ qemuMigrationParamsApply(virQEMUDriver *driver,
cleanup:
qemuDomainObjExitMonitor(vm);
- if (xbzrleCacheSize_old)
- migParams->params[xbzrle].set = true;
-
return ret;
}
--
2.35.1

148
libvirt-qemu-Pass-migration-flags-to-qemuMigrationParamsApply.patch Normal file
View File

@ -0,0 +1,148 @@
From 4c906acec14efe3893491d749465ed7e285a825c Mon Sep 17 00:00:00 2001
Message-Id: <4c906acec14efe3893491d749465ed7e285a825c@dist-git>
From: Jiri Denemark <jdenemar@redhat.com>
Date: Wed, 29 Jun 2022 12:00:03 +0200
Subject: [PATCH] qemu: Pass migration flags to qemuMigrationParamsApply
The flags will later be used to determine which parameters should
actually be applied.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit 0eae541257cd4f01c9d90db62056ad8d03c5af23)
https://bugzilla.redhat.com/show_bug.cgi?id=2111070
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
src/qemu/qemu_driver.c | 6 +++---
src/qemu/qemu_migration.c | 8 ++++----
src/qemu/qemu_migration_params.c | 11 ++++++++---
src/qemu/qemu_migration_params.h | 3 ++-
4 files changed, 17 insertions(+), 11 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 847c96639d..17e4c23199 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -13091,7 +13091,7 @@ qemuDomainMigrateSetMaxDowntime(virDomainPtr dom,
goto endjob;
if (qemuMigrationParamsApply(driver, vm, VIR_ASYNC_JOB_NONE,
- migParams) < 0)
+ migParams, 0) < 0)
goto endjob;
} else {
qemuDomainObjEnterMonitor(driver, vm);
@@ -13273,7 +13273,7 @@ qemuDomainMigrateSetCompressionCache(virDomainPtr dom,
goto endjob;
if (qemuMigrationParamsApply(driver, vm, VIR_ASYNC_JOB_NONE,
- migParams) < 0)
+ migParams, 0) < 0)
goto endjob;
} else {
qemuDomainObjEnterMonitor(driver, vm);
@@ -13360,7 +13360,7 @@ qemuDomainMigrateSetMaxSpeed(virDomainPtr dom,
goto endjob;
if (qemuMigrationParamsApply(driver, vm, VIR_ASYNC_JOB_NONE,
- migParams) < 0)
+ migParams, 0) < 0)
goto endjob;
} else {
int rc;
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 76903d612b..8cbd73a809 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -3259,7 +3259,7 @@ qemuMigrationDstPrepareActive(virQEMUDriver *driver,
}
if (qemuMigrationParamsApply(driver, vm, VIR_ASYNC_JOB_MIGRATION_IN,
- migParams) < 0)
+ migParams, flags) < 0)
goto error;
if (mig->nbd &&
@@ -4847,7 +4847,7 @@ qemuMigrationSrcRun(virQEMUDriver *driver,
goto error;
if (qemuMigrationParamsApply(driver, vm, VIR_ASYNC_JOB_MIGRATION_OUT,
- migParams) < 0)
+ migParams, flags) < 0)
goto error;
if (flags & VIR_MIGRATE_ZEROCOPY) {
@@ -6941,7 +6941,7 @@ qemuMigrationSrcToFile(virQEMUDriver *driver, virDomainObj *vm,
QEMU_DOMAIN_MIG_BANDWIDTH_MAX * 1024 * 1024) < 0)
return -1;
- if (qemuMigrationParamsApply(driver, vm, asyncJob, migParams) < 0)
+ if (qemuMigrationParamsApply(driver, vm, asyncJob, migParams, 0) < 0)
return -1;
priv->migMaxBandwidth = QEMU_DOMAIN_MIG_BANDWIDTH_MAX;
@@ -7037,7 +7037,7 @@ qemuMigrationSrcToFile(virQEMUDriver *driver, virDomainObj *vm,
QEMU_MIGRATION_PARAM_MAX_BANDWIDTH,
saveMigBandwidth * 1024 * 1024) == 0)
ignore_value(qemuMigrationParamsApply(driver, vm, asyncJob,
- migParams));
+ migParams, 0));
} else {
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) == 0) {
qemuMonitorSetMigrationSpeed(priv->mon, saveMigBandwidth);
diff --git a/src/qemu/qemu_migration_params.c b/src/qemu/qemu_migration_params.c
index cc66ed8229..398c07efd0 100644
--- a/src/qemu/qemu_migration_params.c
+++ b/src/qemu/qemu_migration_params.c
@@ -833,8 +833,10 @@ qemuMigrationCapsToJSON(virBitmap *caps,
* @vm: domain object
* @asyncJob: migration job
* @migParams: migration parameters to send to QEMU
+ * @apiFlags: migration flags, some of them may affect which parameters are applied
*
- * Send all parameters stored in @migParams to QEMU.
+ * Send parameters stored in @migParams to QEMU. If @apiFlags is non-zero, some
+ * parameters that do not make sense for the enabled flags will be ignored.
*
* Returns 0 on success, -1 on failure.
*/
@@ -842,7 +844,8 @@ int
qemuMigrationParamsApply(virQEMUDriver *driver,
virDomainObj *vm,
int asyncJob,
- qemuMigrationParams *migParams)
+ qemuMigrationParams *migParams,
+ unsigned long apiFlags G_GNUC_UNUSED)
{
qemuDomainObjPrivate *priv = vm->privateData;
bool xbzrleCacheSize_old = false;
@@ -1245,7 +1248,9 @@ qemuMigrationParamsReset(virQEMUDriver *driver,
if (!virDomainObjIsActive(vm) || !origParams)
goto cleanup;
- if (qemuMigrationParamsApply(driver, vm, asyncJob, origParams) < 0)
+ /* Do not pass apiFlags to qemuMigrationParamsApply here to make sure all
+ * parameters and capabilities are reset. */
+ if (qemuMigrationParamsApply(driver, vm, asyncJob, origParams, 0) < 0)
goto cleanup;
qemuMigrationParamsResetTLS(driver, vm, asyncJob, origParams, apiFlags);
diff --git a/src/qemu/qemu_migration_params.h b/src/qemu/qemu_migration_params.h
index d1184acded..9e990e09bd 100644
--- a/src/qemu/qemu_migration_params.h
+++ b/src/qemu/qemu_migration_params.h
@@ -98,7 +98,8 @@ int
qemuMigrationParamsApply(virQEMUDriver *driver,
virDomainObj *vm,
int asyncJob,
- qemuMigrationParams *migParams);
+ qemuMigrationParams *migParams,
+ unsigned long apiFlags);
int
qemuMigrationParamsEnableTLS(virQEMUDriver *driver,
--
2.35.1

38
libvirt-qemu-Properly-release-job-in-qemuDomainSaveInternal.patch Normal file
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@ -0,0 +1,38 @@
From b35eb8dd4800be4dba22eb0a38da4d4d1c54521f Mon Sep 17 00:00:00 2001
Message-Id: <b35eb8dd4800be4dba22eb0a38da4d4d1c54521f@dist-git>
From: Jiri Denemark <jdenemar@redhat.com>
Date: Wed, 27 Jul 2022 15:40:12 +0200
Subject: [PATCH] qemu: Properly release job in qemuDomainSaveInternal
The function would fail to release the job in case
qemuMigrationSrcIsAllowed failed.
Fixes v8.5.0-157-g69e0e33873
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
(cherry picked from commit 9c3d398df11024ef6c00a50c98fcc0f1f66c16a1)
https://bugzilla.redhat.com/show_bug.cgi?id=1497907
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
src/qemu/qemu_driver.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 256e126ae1..ebd6365f52 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -2655,7 +2655,7 @@ qemuDomainSaveInternal(virQEMUDriver *driver,
goto cleanup;
if (!qemuMigrationSrcIsAllowed(driver, vm, false, VIR_ASYNC_JOB_SAVE, 0))
- goto cleanup;
+ goto endjob;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
--
2.35.1

85
libvirt-qemu-Restore-original-memory-locking-limit-on-reconnect.patch Normal file
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@ -0,0 +1,85 @@
From a1d825e5dcb8cbe0854fa852d25e5997a52d57cd Mon Sep 17 00:00:00 2001
Message-Id: <a1d825e5dcb8cbe0854fa852d25e5997a52d57cd@dist-git>
From: Jiri Denemark <jdenemar@redhat.com>
Date: Wed, 27 Jul 2022 14:33:23 +0200
Subject: [PATCH] qemu: Restore original memory locking limit on reconnect
Commit v8.4.0-287-gd4d3bb8130 tried to make sure the original
pre-migration memory locking limit is restored at the end of migration,
but it missed the case when libvirt daemon is restarted during
migration which needs to be aborted on reconnect.
And if this was not enough, I forgot to actually save the status XML
after setting the field in priv (in the commit mentioned above and also
in v8.4.0-291-gd375993ab3).
https://bugzilla.redhat.com/show_bug.cgi?id=2107424
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit bb9badb9168ad0d40bca86b6463ef504624f096d)
Conflicts:
src/qemu/qemu_migration.c
- commit v8.5.0-2-gf9dcc01a0f not backported
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
src/qemu/qemu_migration.c | 13 +++++++++----
src/qemu/qemu_process.c | 2 ++
2 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 9289df81eb..61fcaf4258 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -4672,10 +4672,12 @@ qemuMigrationSrcStart(virDomainObj *vm,
switch (spec->destType) {
case MIGRATION_DEST_HOST:
if (STREQ(spec->dest.host.protocol, "rdma") &&
- vm->def->mem.hard_limit > 0 &&
- qemuDomainSetMaxMemLock(vm, vm->def->mem.hard_limit << 10,
- &priv->preMigrationMemlock) < 0) {
- return -1;
+ vm->def->mem.hard_limit > 0) {
+ if (qemuDomainSetMaxMemLock(vm, vm->def->mem.hard_limit << 10,
+ &priv->preMigrationMemlock) < 0)
+ return -1;
+ /* Store the original memory locking limit */
+ qemuDomainSaveStatus(vm);
}
return qemuMonitorMigrateToHost(priv->mon, migrateFlags,
spec->dest.host.protocol,
@@ -4870,6 +4872,9 @@ qemuMigrationSrcRun(virQEMUDriver *driver,
if (qemuDomainSetMaxMemLock(vm, limit << 10, &priv->preMigrationMemlock) < 0)
goto error;
+
+ /* Store the original memory locking limit */
+ qemuDomainSaveStatus(vm);
}
if (storageMigration) {
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 771a623ef7..1c28d4b102 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -3677,6 +3677,7 @@ qemuProcessRecoverMigration(virQEMUDriver *driver,
{
virDomainJobStatus migStatus = VIR_DOMAIN_JOB_STATUS_NONE;
qemuDomainJobPrivate *jobPriv = job->privateData;
+ qemuDomainObjPrivate *priv = vm->privateData;
virDomainState state;
int reason;
int rc;
@@ -3726,6 +3727,7 @@ qemuProcessRecoverMigration(virQEMUDriver *driver,
qemuMigrationParamsReset(driver, vm, VIR_ASYNC_JOB_NONE,
jobPriv->migParams, job->apiFlags);
+ qemuDomainSetMaxMemLock(vm, 0, &priv->preMigrationMemlock);
return 0;
}
--
2.35.1

61
libvirt-qemu-don-t-call-qemuMigrationSrcIsAllowedHostdev-from-qemuMigrationDstPrepareFresh.patch Normal file
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@ -0,0 +1,61 @@
From d51e6092ed7977daf662ed1def0f6cd5cc6ba33d Mon Sep 17 00:00:00 2001
Message-Id: <d51e6092ed7977daf662ed1def0f6cd5cc6ba33d@dist-git>
From: Laine Stump <laine@redhat.com>
Date: Wed, 27 Jul 2022 12:14:10 -0400
Subject: [PATCH] qemu: don't call qemuMigrationSrcIsAllowedHostdev() from
qemuMigrationDstPrepareFresh()
This call to qemuMigrationSrcIsAllowedHostdev() (which does a
hardcoded fail of the migration if there is any PCI or mdev hostdev
device in the domain) while doing the destination side of migration
prep was found once the call to that same function was removed from
the source side migration prep (commit 25883cd5).
According to jdenemar, for the V2 migration protocol, prep of the
destination is the first step, so this *was* the proper place to do
the check, but for V3 migration this is in a way redundant (since we
will have already done the check on the source side (updated by
25883cd5 to query QEMU rather than do a hardcoded fail)).
Of course it's possible that the source could support migration of a
particular VFIO device, but the destination doesn't. But the current
check on the destination side is worthless even in that case, since it
is just *always* failing rather than querying QEMU; and QEMU can't be
queried at the point where the destination check is happening, since
it isn't yet running.
Anyway QEMU should complain when it's started if it's going to fail,
so removing this check should just move the failure to happen a bit
later. So the best solution to this problem is to simply remove the
hardcoded check/fail from qemuMigrationDstPrepareFresh() and rely on
QEMU to fail if it needs to.
Fixes: 25883cd5f0b188f2417f294b7d219a77b219f7c2
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
(cherry picked from commit 640d185f01858b7a8db401235c929ac4798592d0)
https://bugzilla.redhat.com/show_bug.cgi?id=1497907
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
src/qemu/qemu_migration.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 61fcaf4258..e3ba4c3f78 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -3382,9 +3382,6 @@ qemuMigrationDstPrepareFresh(virQEMUDriver *driver,
QEMU_MIGRATION_COOKIE_CAPS;
}
- if (!qemuMigrationSrcIsAllowedHostdev(*def))
- goto cleanup;
-
/* Let migration hook filter domain XML */
if (virHookPresent(VIR_HOOK_DRIVER_QEMU)) {
g_autofree char *xml = NULL;
--
2.35.1

229
libvirt-qemu_migration-Apply-max-postcopy-bandwidth-on-post-copy-resume.patch Normal file
View File

@ -0,0 +1,229 @@
From b8c791a3fc2767e6d899e3e0c590a93cb0ee7e03 Mon Sep 17 00:00:00 2001
Message-Id: <b8c791a3fc2767e6d899e3e0c590a93cb0ee7e03@dist-git>
From: Jiri Denemark <jdenemar@redhat.com>
Date: Thu, 30 Jun 2022 12:52:38 +0200
Subject: [PATCH] qemu_migration: Apply max-postcopy-bandwidth on post-copy
resume
When resuming post-copy migration users may want to limit the bandwidth
used by the migration and use a value that is different from the one
specified when the migration was originally started.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/333
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit 766abdc291ba606379a7d197bff477fef25fb508)
https://bugzilla.redhat.com/show_bug.cgi?id=2111070
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
src/qemu/qemu_migration.c | 12 ++++++--
src/qemu/qemu_migration_params.c | 45 ++++++++++++++++++----------
src/qemu/qemu_migration_paramspriv.h | 3 +-
tests/qemumigparamstest.c | 2 +-
tests/qemumigrationcookiexmltest.c | 2 +-
5 files changed, 42 insertions(+), 22 deletions(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 285a49c5ff..8a2f5b09a1 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -5097,12 +5097,13 @@ qemuMigrationSrcRun(virQEMUDriver *driver,
static int
qemuMigrationSrcResume(virDomainObj *vm,
- qemuMigrationParams *migParams G_GNUC_UNUSED,
+ qemuMigrationParams *migParams,
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
- qemuMigrationSpec *spec)
+ qemuMigrationSpec *spec,
+ unsigned long flags)
{
qemuDomainObjPrivate *priv = vm->privateData;
virQEMUDriver *driver = priv->driver;
@@ -5119,6 +5120,10 @@ qemuMigrationSrcResume(virDomainObj *vm,
if (!mig)
return -1;
+ if (qemuMigrationParamsApply(driver, vm, VIR_ASYNC_JOB_MIGRATION_OUT,
+ migParams, flags) < 0)
+ return -1;
+
if (qemuDomainObjEnterMonitorAsync(driver, vm,
VIR_ASYNC_JOB_MIGRATION_OUT) < 0)
return -1;
@@ -5200,6 +5205,7 @@ qemuMigrationSrcPerformNative(virQEMUDriver *driver,
if (STREQ(uribits->scheme, "unix")) {
if ((flags & VIR_MIGRATE_TLS) &&
+ !(flags & VIR_MIGRATE_POSTCOPY_RESUME) &&
!qemuMigrationParamsTLSHostnameIsSet(migParams)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("Explicit destination hostname is required "
@@ -5231,7 +5237,7 @@ qemuMigrationSrcPerformNative(virQEMUDriver *driver,
if (flags & VIR_MIGRATE_POSTCOPY_RESUME) {
ret = qemuMigrationSrcResume(vm, migParams, cookiein, cookieinlen,
- cookieout, cookieoutlen, &spec);
+ cookieout, cookieoutlen, &spec, flags);
} else {
ret = qemuMigrationSrcRun(driver, vm, persist_xml, cookiein, cookieinlen,
cookieout, cookieoutlen, flags, resource,
diff --git a/src/qemu/qemu_migration_params.c b/src/qemu/qemu_migration_params.c
index a68aed9aa4..6ea0bde13a 100644
--- a/src/qemu/qemu_migration_params.c
+++ b/src/qemu/qemu_migration_params.c
@@ -141,6 +141,7 @@ struct _qemuMigrationParamsTPMapItem {
typedef struct _qemuMigrationParamInfoItem qemuMigrationParamInfoItem;
struct _qemuMigrationParamInfoItem {
qemuMigrationParamType type;
+ bool applyOnPostcopyResume;
};
/* Migration capabilities which should always be enabled as long as they
@@ -265,6 +266,7 @@ static const qemuMigrationParamInfoItem qemuMigrationParamInfo[] = {
},
[QEMU_MIGRATION_PARAM_MAX_POSTCOPY_BANDWIDTH] = {
.type = QEMU_MIGRATION_PARAM_TYPE_ULL,
+ .applyOnPostcopyResume = true,
},
[QEMU_MIGRATION_PARAM_MULTIFD_CHANNELS] = {
.type = QEMU_MIGRATION_PARAM_TYPE_INT,
@@ -782,7 +784,8 @@ qemuMigrationParamsFromJSON(virJSONValue *params)
virJSONValue *
-qemuMigrationParamsToJSON(qemuMigrationParams *migParams)
+qemuMigrationParamsToJSON(qemuMigrationParams *migParams,
+ bool postcopyResume)
{
g_autoptr(virJSONValue) params = virJSONValueNewObject();
size_t i;
@@ -795,6 +798,9 @@ qemuMigrationParamsToJSON(qemuMigrationParams *migParams)
if (!pv->set)
continue;
+ if (postcopyResume && !qemuMigrationParamInfo[i].applyOnPostcopyResume)
+ continue;
+
switch (qemuMigrationParamInfo[i].type) {
case QEMU_MIGRATION_PARAM_TYPE_INT:
rc = virJSONValueObjectAppendNumberInt(params, name, pv->value.i);
@@ -868,6 +874,7 @@ qemuMigrationCapsToJSON(virBitmap *caps,
*
* Send parameters stored in @migParams to QEMU. If @apiFlags is non-zero, some
* parameters that do not make sense for the enabled flags will be ignored.
+ * VIR_MIGRATE_POSTCOPY_RESUME is the only flag checked currently.
*
* Returns 0 on success, -1 on failure.
*/
@@ -876,32 +883,38 @@ qemuMigrationParamsApply(virQEMUDriver *driver,
virDomainObj *vm,
int asyncJob,
qemuMigrationParams *migParams,
- unsigned long apiFlags G_GNUC_UNUSED)
+ unsigned long apiFlags)
{
qemuDomainObjPrivate *priv = vm->privateData;
bool xbzrleCacheSize_old = false;
g_autoptr(virJSONValue) params = NULL;
g_autoptr(virJSONValue) caps = NULL;
qemuMigrationParam xbzrle = QEMU_MIGRATION_PARAM_XBZRLE_CACHE_SIZE;
+ bool postcopyResume = !!(apiFlags & VIR_MIGRATE_POSTCOPY_RESUME);
int ret = -1;
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
return -1;
- if (asyncJob == VIR_ASYNC_JOB_NONE) {
- if (!virBitmapIsAllClear(migParams->caps)) {
- virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("Migration capabilities can only be set by "
- "a migration job"));
- goto cleanup;
- }
- } else {
- if (!(caps = qemuMigrationCapsToJSON(priv->migrationCaps, migParams->caps)))
- goto cleanup;
+ /* Changing capabilities is only allowed before migration starts, we need
+ * to skip them when resuming post-copy migration.
+ */
+ if (!postcopyResume) {
+ if (asyncJob == VIR_ASYNC_JOB_NONE) {
+ if (!virBitmapIsAllClear(migParams->caps)) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("Migration capabilities can only be set by "
+ "a migration job"));
+ goto cleanup;
+ }
+ } else {
+ if (!(caps = qemuMigrationCapsToJSON(priv->migrationCaps, migParams->caps)))
+ goto cleanup;
- if (virJSONValueArraySize(caps) > 0 &&
- qemuMonitorSetMigrationCapabilities(priv->mon, &caps) < 0)
- goto cleanup;
+ if (virJSONValueArraySize(caps) > 0 &&
+ qemuMonitorSetMigrationCapabilities(priv->mon, &caps) < 0)
+ goto cleanup;
+ }
}
/* If QEMU is too old to support xbzrle-cache-size migration parameter,
@@ -917,7 +930,7 @@ qemuMigrationParamsApply(virQEMUDriver *driver,
migParams->params[xbzrle].set = false;
}
- if (!(params = qemuMigrationParamsToJSON(migParams)))
+ if (!(params = qemuMigrationParamsToJSON(migParams, postcopyResume)))
goto cleanup;
if (virJSONValueObjectKeysNumber(params) > 0 &&
diff --git a/src/qemu/qemu_migration_paramspriv.h b/src/qemu/qemu_migration_paramspriv.h
index f7e0f51fbd..34d51231ff 100644
--- a/src/qemu/qemu_migration_paramspriv.h
+++ b/src/qemu/qemu_migration_paramspriv.h
@@ -26,7 +26,8 @@
#pragma once
virJSONValue *
-qemuMigrationParamsToJSON(qemuMigrationParams *migParams);
+qemuMigrationParamsToJSON(qemuMigrationParams *migParams,
+ bool postcopyResume);
qemuMigrationParams *
qemuMigrationParamsFromJSON(virJSONValue *params);
diff --git a/tests/qemumigparamstest.c b/tests/qemumigparamstest.c
index bcdee5f32b..5d45a9dd58 100644
--- a/tests/qemumigparamstest.c
+++ b/tests/qemumigparamstest.c
@@ -155,7 +155,7 @@ qemuMigParamsTestJSON(const void *opaque)
if (!(migParams = qemuMigrationParamsFromJSON(paramsIn)))
return -1;
- if (!(paramsOut = qemuMigrationParamsToJSON(migParams)) ||
+ if (!(paramsOut = qemuMigrationParamsToJSON(migParams, false)) ||
!(actualJSON = virJSONValueToString(paramsOut, true)))
return -1;
diff --git a/tests/qemumigrationcookiexmltest.c b/tests/qemumigrationcookiexmltest.c
index 316bfedd15..9731348b53 100644
--- a/tests/qemumigrationcookiexmltest.c
+++ b/tests/qemumigrationcookiexmltest.c
@@ -333,7 +333,7 @@ testQemuMigrationCookieBlockDirtyBitmaps(const void *opaque)
qemuMigrationParamsSetBlockDirtyBitmapMapping(migParams, &migParamsBitmaps);
- if (!(paramsOut = qemuMigrationParamsToJSON(migParams)) ||
+ if (!(paramsOut = qemuMigrationParamsToJSON(migParams, false)) ||
!(actualJSON = virJSONValueToString(paramsOut, true)))
return -1;
--
2.35.1

70
libvirt-qemu_migration-Pass-migParams-to-qemuMigrationSrcResume.patch Normal file
View File

@ -0,0 +1,70 @@
From d24586ede83472f850d1a0c520d482ac5f908696 Mon Sep 17 00:00:00 2001
Message-Id: <d24586ede83472f850d1a0c520d482ac5f908696@dist-git>
From: Jiri Denemark <jdenemar@redhat.com>
Date: Thu, 30 Jun 2022 12:51:55 +0200
Subject: [PATCH] qemu_migration: Pass migParams to qemuMigrationSrcResume
So the we can apply selected migration parameters even when resuming
post-copy migration.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit 8c335b5530194dbcef719a4d88c89b8723b831a5)
https://bugzilla.redhat.com/show_bug.cgi?id=2111070
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
src/qemu/qemu_migration.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 8cbd73a809..285a49c5ff 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -5097,6 +5097,7 @@ qemuMigrationSrcRun(virQEMUDriver *driver,
static int
qemuMigrationSrcResume(virDomainObj *vm,
+ qemuMigrationParams *migParams G_GNUC_UNUSED,
const char *cookiein,
int cookieinlen,
char **cookieout,
@@ -5229,7 +5230,7 @@ qemuMigrationSrcPerformNative(virQEMUDriver *driver,
spec.fwdType = MIGRATION_FWD_DIRECT;
if (flags & VIR_MIGRATE_POSTCOPY_RESUME) {
- ret = qemuMigrationSrcResume(vm, cookiein, cookieinlen,
+ ret = qemuMigrationSrcResume(vm, migParams, cookiein, cookieinlen,
cookieout, cookieoutlen, &spec);
} else {
ret = qemuMigrationSrcRun(driver, vm, persist_xml, cookiein, cookieinlen,
@@ -6124,6 +6125,7 @@ qemuMigrationSrcPerformResume(virQEMUDriver *driver,
virConnectPtr conn,
virDomainObj *vm,
const char *uri,
+ qemuMigrationParams *migParams,
const char *cookiein,
int cookieinlen,
char **cookieout,
@@ -6148,7 +6150,7 @@ qemuMigrationSrcPerformResume(virQEMUDriver *driver,
ret = qemuMigrationSrcPerformNative(driver, vm, NULL, uri,
cookiein, cookieinlen,
cookieout, cookieoutlen, flags,
- 0, NULL, NULL, 0, NULL, NULL, NULL);
+ 0, NULL, NULL, 0, NULL, migParams, NULL);
if (virCloseCallbacksSet(driver->closeCallbacks, vm, conn,
qemuMigrationAnyConnectionClosed) < 0)
@@ -6188,7 +6190,7 @@ qemuMigrationSrcPerformPhase(virQEMUDriver *driver,
int ret = -1;
if (flags & VIR_MIGRATE_POSTCOPY_RESUME) {
- return qemuMigrationSrcPerformResume(driver, conn, vm, uri,
+ return qemuMigrationSrcPerformResume(driver, conn, vm, uri, migParams,
cookiein, cookieinlen,
cookieout, cookieoutlen, flags);
}
--
2.35.1

51
libvirt-qemu_migration-Store-original-migration-params-in-status-XML.patch Normal file
View File

@ -0,0 +1,51 @@
From c50cae68f0d083ad0c5ffcf85908cc62eeaa866d Mon Sep 17 00:00:00 2001
Message-Id: <c50cae68f0d083ad0c5ffcf85908cc62eeaa866d@dist-git>
From: Jiri Denemark <jdenemar@redhat.com>
Date: Tue, 19 Jul 2022 13:48:44 +0200
Subject: [PATCH] qemu_migration: Store original migration params in status XML
We keep original values of migration parameters so that we can restore
them at the end of migration to make sure later migration does not use
some random values. However, this does not really work when libvirt
daemon is restarted on the source host because we failed to explicitly
save the status XML after getting the migration parameters from QEMU.
Actually it might work if the status XML is written later for some other
reason such as domain state change, but that's not how it should work.
https://bugzilla.redhat.com/show_bug.cgi?id=2107892
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit c7238941357f0d2e94524cf8c5ad7d9c82dcf2f9)
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
src/qemu/qemu_migration.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 8a2f5b09a1..9289df81eb 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -3245,6 +3245,9 @@ qemuMigrationDstPrepareActive(virQEMUDriver *driver,
migParams, mig->caps->automatic) < 0)
goto error;
+ /* Save original migration parameters */
+ qemuDomainSaveStatus(vm);
+
/* Migrations using TLS need to add the "tls-creds-x509" object and
* set the migration TLS parameters */
if (flags & VIR_MIGRATE_TLS) {
@@ -4822,6 +4825,9 @@ qemuMigrationSrcRun(virQEMUDriver *driver,
migParams, mig->caps->automatic) < 0)
goto error;
+ /* Save original migration parameters */
+ qemuDomainSaveStatus(vm);
+
if (flags & VIR_MIGRATE_TLS) {
const char *hostname = NULL;
--
2.35.1

62
libvirt-qemu_migration_params-Avoid-deadlock-in-qemuMigrationParamsReset.patch Normal file
View File

@ -0,0 +1,62 @@
From 0022c9aef2ecf60e9091e6df57e56065b14b67c5 Mon Sep 17 00:00:00 2001
Message-Id: <0022c9aef2ecf60e9091e6df57e56065b14b67c5@dist-git>
From: Jiri Denemark <jdenemar@redhat.com>
Date: Thu, 28 Jul 2022 15:35:45 +0200
Subject: [PATCH] qemu_migration_params: Avoid deadlock in
qemuMigrationParamsReset
In my recent comnmit v8.5.0-188-gc47f1abb81 I accidentally moved
qemuMigrationParamsResetTLS after qemuDomainObjEnterMonitorAsync not
noticing qemuMigrationParamsResetTLS will try to enter the monitor
again. The second call will time out and return with a domain object
locked. But we're still in monitor section and the object should be
unlocked which means qemuDomainObjExitMonitor will deadlock trying to
lock it again.
Fixes: c47f1abb81194461377a0c608a7ecd87f9ce9146
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit 8cb19a9b9a56ab6ebefc1f913c545e0bb86d4364)
https://bugzilla.redhat.com/show_bug.cgi?id=2107892
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
src/qemu/qemu_migration_params.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_migration_params.c b/src/qemu/qemu_migration_params.c
index 4a824ff5e1..4766d16e64 100644
--- a/src/qemu/qemu_migration_params.c
+++ b/src/qemu/qemu_migration_params.c
@@ -1291,6 +1291,7 @@ qemuMigrationParamsReset(virQEMUDriver *driver,
{
virErrorPtr err;
g_autoptr(virBitmap) clearCaps = NULL;
+ int rc;
virErrorPreserveLast(&err);
@@ -1305,11 +1306,16 @@ qemuMigrationParamsReset(virQEMUDriver *driver,
clearCaps = virBitmapNew(0);
- if (qemuMigrationParamsApplyCaps(vm, clearCaps) == 0 &&
- qemuMigrationParamsApplyValues(vm, origParams, false) == 0)
- qemuMigrationParamsResetTLS(driver, vm, asyncJob, origParams, apiFlags);
+ rc = 0;
+ if (qemuMigrationParamsApplyCaps(vm, clearCaps) < 0 ||
+ qemuMigrationParamsApplyValues(vm, origParams, false) < 0)
+ rc = -1;
qemuDomainObjExitMonitor(vm);
+ if (rc < 0)
+ goto cleanup;
+
+ qemuMigrationParamsResetTLS(driver, vm, asyncJob, origParams, apiFlags);
cleanup:
virErrorRestore(&err);
--
2.35.1

107
libvirt-qemu_migration_params-Refactor-qemuMigrationParamsApply.patch Normal file
View File

@ -0,0 +1,107 @@
From 852927ea725deae6d4ef8a87383a78d9b0b1cd83 Mon Sep 17 00:00:00 2001
Message-Id: <852927ea725deae6d4ef8a87383a78d9b0b1cd83@dist-git>
From: Jiri Denemark <jdenemar@redhat.com>
Date: Thu, 21 Jul 2022 15:59:51 +0200
Subject: [PATCH] qemu_migration_params: Refactor qemuMigrationParamsApply
qemuMigrationParamsApply restricts when capabilities can be set, but
this is not useful in all cases. Let's create new helpers for setting
migration capabilities and parameters which can be reused in more places
without the restriction.
https://bugzilla.redhat.com/show_bug.cgi?id=2107892
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit c0824fd03802085db698c10fe62c98cc95a57941)
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
src/qemu/qemu_migration_params.c | 55 +++++++++++++++++++++++---------
1 file changed, 40 insertions(+), 15 deletions(-)
diff --git a/src/qemu/qemu_migration_params.c b/src/qemu/qemu_migration_params.c
index 0bce358ac3..7b9e5453f6 100644
--- a/src/qemu/qemu_migration_params.c
+++ b/src/qemu/qemu_migration_params.c
@@ -864,6 +864,43 @@ qemuMigrationCapsToJSON(virBitmap *caps,
}
+static int
+qemuMigrationParamsApplyCaps(virDomainObj *vm,
+ virBitmap *states)
+{
+ qemuDomainObjPrivate *priv = vm->privateData;
+ g_autoptr(virJSONValue) json = NULL;
+
+ if (!(json = qemuMigrationCapsToJSON(priv->migrationCaps, states)))
+ return -1;
+
+ if (virJSONValueArraySize(json) > 0 &&
+ qemuMonitorSetMigrationCapabilities(priv->mon, &json) < 0)
+ return -1;
+
+ return 0;
+}
+
+
+static int
+qemuMigrationParamsApplyValues(virDomainObj *vm,
+ qemuMigrationParams *params,
+ bool postcopyResume)
+{
+ qemuDomainObjPrivate *priv = vm->privateData;
+ g_autoptr(virJSONValue) json = NULL;
+
+ if (!(json = qemuMigrationParamsToJSON(params, postcopyResume)))
+ return -1;
+
+ if (virJSONValueObjectKeysNumber(json) > 0 &&
+ qemuMonitorSetMigrationParams(priv->mon, &json) < 0)
+ return -1;
+
+ return 0;
+}
+
+
/**
* qemuMigrationParamsApply
* @driver: qemu driver
@@ -885,9 +922,6 @@ qemuMigrationParamsApply(virQEMUDriver *driver,
qemuMigrationParams *migParams,
unsigned long apiFlags)
{
- qemuDomainObjPrivate *priv = vm->privateData;
- g_autoptr(virJSONValue) params = NULL;
- g_autoptr(virJSONValue) caps = NULL;
bool postcopyResume = !!(apiFlags & VIR_MIGRATE_POSTCOPY_RESUME);
int ret = -1;
@@ -905,21 +939,12 @@ qemuMigrationParamsApply(virQEMUDriver *driver,
"a migration job"));
goto cleanup;
}
- } else {
- if (!(caps = qemuMigrationCapsToJSON(priv->migrationCaps, migParams->caps)))
- goto cleanup;
-
- if (virJSONValueArraySize(caps) > 0 &&
- qemuMonitorSetMigrationCapabilities(priv->mon, &caps) < 0)
- goto cleanup;
+ } else if (qemuMigrationParamsApplyCaps(vm, migParams->caps) < 0) {
+ goto cleanup;
}
}
- if (!(params = qemuMigrationParamsToJSON(migParams, postcopyResume)))
- goto cleanup;
-
- if (virJSONValueObjectKeysNumber(params) > 0 &&
- qemuMonitorSetMigrationParams(priv->mon, &params) < 0)
+ if (qemuMigrationParamsApplyValues(vm, migParams, postcopyResume) < 0)
goto cleanup;
ret = 0;
--
2.35.1

63
libvirt-qemu_migration_params-Refactor-qemuMigrationParamsReset.patch Normal file
View File

@ -0,0 +1,63 @@
From 2a05454cd2d6ba283c128158f44d84d65832ebf7 Mon Sep 17 00:00:00 2001
Message-Id: <2a05454cd2d6ba283c128158f44d84d65832ebf7@dist-git>
From: Jiri Denemark <jdenemar@redhat.com>
Date: Thu, 21 Jul 2022 16:49:09 +0200
Subject: [PATCH] qemu_migration_params: Refactor qemuMigrationParamsReset
Because qemuMigrationParamsReset used to call qemuMigrationParamsApply
for resetting migration capabilities and parameters, it did not work
well since commit v5.1.0-83-ga1dec315c9 which only allowed capabilities
to be set from an async job. However, when reconnecting to running
domains after daemon restart we do not have an async job. Thus the
capabilities were not properly reset in case the daemon was restarted
during an ongoing migration. We need to avoid calling
qemuMigrationParamsApply to make sure both parameters and capabilities
can be reset by a normal job.
https://bugzilla.redhat.com/show_bug.cgi?id=2107892
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit c47f1abb81194461377a0c608a7ecd87f9ce9146)
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
src/qemu/qemu_migration_params.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/src/qemu/qemu_migration_params.c b/src/qemu/qemu_migration_params.c
index 7b9e5453f6..4a824ff5e1 100644
--- a/src/qemu/qemu_migration_params.c
+++ b/src/qemu/qemu_migration_params.c
@@ -1290,6 +1290,7 @@ qemuMigrationParamsReset(virQEMUDriver *driver,
unsigned long apiFlags)
{
virErrorPtr err;
+ g_autoptr(virBitmap) clearCaps = NULL;
virErrorPreserveLast(&err);
@@ -1299,13 +1300,16 @@ qemuMigrationParamsReset(virQEMUDriver *driver,
if (!virDomainObjIsActive(vm) || !origParams)
goto cleanup;
- /* Do not pass apiFlags to qemuMigrationParamsApply here to make sure all
- * parameters and capabilities are reset. */
- if (qemuMigrationParamsApply(driver, vm, asyncJob, origParams, 0) < 0)
+ if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
goto cleanup;
- qemuMigrationParamsResetTLS(driver, vm, asyncJob, origParams, apiFlags);
- /* We don't reset 'block-bitmap-mapping' as it can't be unset */
+ clearCaps = virBitmapNew(0);
+
+ if (qemuMigrationParamsApplyCaps(vm, clearCaps) == 0 &&
+ qemuMigrationParamsApplyValues(vm, origParams, false) == 0)
+ qemuMigrationParamsResetTLS(driver, vm, asyncJob, origParams, apiFlags);
+
+ qemuDomainObjExitMonitor(vm);
cleanup:
virErrorRestore(&err);
--
2.35.1

176
libvirt-qemu_migration_params-Replace-qemuMigrationParamTypes-array.patch Normal file
View File

@ -0,0 +1,176 @@
From aa4b6b4877d60218c24d4ae713786f5ee37ac6dc Mon Sep 17 00:00:00 2001
Message-Id: <aa4b6b4877d60218c24d4ae713786f5ee37ac6dc@dist-git>
From: Jiri Denemark <jdenemar@redhat.com>
Date: Wed, 29 Jun 2022 15:12:20 +0200
Subject: [PATCH] qemu_migration_params: Replace qemuMigrationParamTypes array
We will need to annotate individual parameters a bit more than just
noting their type. Let's introduce qemuMigrationParamInfo replacing
simple qemuMigrationParamTypes with an array of structs.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit 184749691f27f30a39f6f6c77828ffb951af0255)
https://bugzilla.redhat.com/show_bug.cgi?id=2111070
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
src/qemu/qemu_migration_params.c | 77 ++++++++++++++++++++++----------
1 file changed, 54 insertions(+), 23 deletions(-)
diff --git a/src/qemu/qemu_migration_params.c b/src/qemu/qemu_migration_params.c
index 398c07efd0..a68aed9aa4 100644
--- a/src/qemu/qemu_migration_params.c
+++ b/src/qemu/qemu_migration_params.c
@@ -138,6 +138,11 @@ struct _qemuMigrationParamsTPMapItem {
int party; /* bit-wise OR of qemuMigrationParty */
};
+typedef struct _qemuMigrationParamInfoItem qemuMigrationParamInfoItem;
+struct _qemuMigrationParamInfoItem {
+ qemuMigrationParamType type;
+};
+
/* Migration capabilities which should always be enabled as long as they
* are supported by QEMU. If the capability is supposed to be enabled on both
* sides of migration, it won't be enabled unless both sides support it.
@@ -224,22 +229,48 @@ static const qemuMigrationParamsTPMapItem qemuMigrationParamsTPMap[] = {
.party = QEMU_MIGRATION_SOURCE},
};
-static const qemuMigrationParamType qemuMigrationParamTypes[] = {
- [QEMU_MIGRATION_PARAM_COMPRESS_LEVEL] = QEMU_MIGRATION_PARAM_TYPE_INT,
- [QEMU_MIGRATION_PARAM_COMPRESS_THREADS] = QEMU_MIGRATION_PARAM_TYPE_INT,
- [QEMU_MIGRATION_PARAM_DECOMPRESS_THREADS] = QEMU_MIGRATION_PARAM_TYPE_INT,
- [QEMU_MIGRATION_PARAM_THROTTLE_INITIAL] = QEMU_MIGRATION_PARAM_TYPE_INT,
- [QEMU_MIGRATION_PARAM_THROTTLE_INCREMENT] = QEMU_MIGRATION_PARAM_TYPE_INT,
- [QEMU_MIGRATION_PARAM_TLS_CREDS] = QEMU_MIGRATION_PARAM_TYPE_STRING,
- [QEMU_MIGRATION_PARAM_TLS_HOSTNAME] = QEMU_MIGRATION_PARAM_TYPE_STRING,
- [QEMU_MIGRATION_PARAM_MAX_BANDWIDTH] = QEMU_MIGRATION_PARAM_TYPE_ULL,
- [QEMU_MIGRATION_PARAM_DOWNTIME_LIMIT] = QEMU_MIGRATION_PARAM_TYPE_ULL,
- [QEMU_MIGRATION_PARAM_BLOCK_INCREMENTAL] = QEMU_MIGRATION_PARAM_TYPE_BOOL,
- [QEMU_MIGRATION_PARAM_XBZRLE_CACHE_SIZE] = QEMU_MIGRATION_PARAM_TYPE_ULL,
- [QEMU_MIGRATION_PARAM_MAX_POSTCOPY_BANDWIDTH] = QEMU_MIGRATION_PARAM_TYPE_ULL,
- [QEMU_MIGRATION_PARAM_MULTIFD_CHANNELS] = QEMU_MIGRATION_PARAM_TYPE_INT,
+static const qemuMigrationParamInfoItem qemuMigrationParamInfo[] = {
+ [QEMU_MIGRATION_PARAM_COMPRESS_LEVEL] = {
+ .type = QEMU_MIGRATION_PARAM_TYPE_INT,
+ },
+ [QEMU_MIGRATION_PARAM_COMPRESS_THREADS] = {
+ .type = QEMU_MIGRATION_PARAM_TYPE_INT,
+ },
+ [QEMU_MIGRATION_PARAM_DECOMPRESS_THREADS] = {
+ .type = QEMU_MIGRATION_PARAM_TYPE_INT,
+ },
+ [QEMU_MIGRATION_PARAM_THROTTLE_INITIAL] = {
+ .type = QEMU_MIGRATION_PARAM_TYPE_INT,
+ },
+ [QEMU_MIGRATION_PARAM_THROTTLE_INCREMENT] = {
+ .type = QEMU_MIGRATION_PARAM_TYPE_INT,
+ },
+ [QEMU_MIGRATION_PARAM_TLS_CREDS] = {
+ .type = QEMU_MIGRATION_PARAM_TYPE_STRING,
+ },
+ [QEMU_MIGRATION_PARAM_TLS_HOSTNAME] = {
+ .type = QEMU_MIGRATION_PARAM_TYPE_STRING,
+ },
+ [QEMU_MIGRATION_PARAM_MAX_BANDWIDTH] = {
+ .type = QEMU_MIGRATION_PARAM_TYPE_ULL,
+ },
+ [QEMU_MIGRATION_PARAM_DOWNTIME_LIMIT] = {
+ .type = QEMU_MIGRATION_PARAM_TYPE_ULL,
+ },
+ [QEMU_MIGRATION_PARAM_BLOCK_INCREMENTAL] = {
+ .type = QEMU_MIGRATION_PARAM_TYPE_BOOL,
+ },
+ [QEMU_MIGRATION_PARAM_XBZRLE_CACHE_SIZE] = {
+ .type = QEMU_MIGRATION_PARAM_TYPE_ULL,
+ },
+ [QEMU_MIGRATION_PARAM_MAX_POSTCOPY_BANDWIDTH] = {
+ .type = QEMU_MIGRATION_PARAM_TYPE_ULL,
+ },
+ [QEMU_MIGRATION_PARAM_MULTIFD_CHANNELS] = {
+ .type = QEMU_MIGRATION_PARAM_TYPE_INT,
+ },
};
-G_STATIC_ASSERT(G_N_ELEMENTS(qemuMigrationParamTypes) == QEMU_MIGRATION_PARAM_LAST);
+G_STATIC_ASSERT(G_N_ELEMENTS(qemuMigrationParamInfo) == QEMU_MIGRATION_PARAM_LAST);
virBitmap *
@@ -281,7 +312,7 @@ qemuMigrationParamsFree(qemuMigrationParams *migParams)
return;
for (i = 0; i < QEMU_MIGRATION_PARAM_LAST; i++) {
- if (qemuMigrationParamTypes[i] == QEMU_MIGRATION_PARAM_TYPE_STRING)
+ if (qemuMigrationParamInfo[i].type == QEMU_MIGRATION_PARAM_TYPE_STRING)
g_free(migParams->params[i].value.s);
}
@@ -295,7 +326,7 @@ static int
qemuMigrationParamsCheckType(qemuMigrationParam param,
qemuMigrationParamType type)
{
- if (qemuMigrationParamTypes[param] != type) {
+ if (qemuMigrationParamInfo[param].type != type) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Type mismatch for '%s' migration parameter"),
qemuMigrationParamTypeToString(param));
@@ -595,7 +626,7 @@ qemuMigrationParamsFromFlags(virTypedParameterPtr params,
VIR_DEBUG("Setting migration parameter '%s' from '%s'",
qemuMigrationParamTypeToString(item->param), item->typedParam);
- switch (qemuMigrationParamTypes[item->param]) {
+ switch (qemuMigrationParamInfo[item->param].type) {
case QEMU_MIGRATION_PARAM_TYPE_INT:
if (qemuMigrationParamsGetTPInt(migParams, item->param, params,
nparams, item->typedParam,
@@ -671,7 +702,7 @@ qemuMigrationParamsDump(qemuMigrationParams *migParams,
if (!(item->party & QEMU_MIGRATION_DESTINATION))
continue;
- switch (qemuMigrationParamTypes[item->param]) {
+ switch (qemuMigrationParamInfo[item->param].type) {
case QEMU_MIGRATION_PARAM_TYPE_INT:
if (qemuMigrationParamsSetTPInt(migParams, item->param,
params, nparams, maxparams,
@@ -721,7 +752,7 @@ qemuMigrationParamsFromJSON(virJSONValue *params)
name = qemuMigrationParamTypeToString(i);
pv = &migParams->params[i];
- switch (qemuMigrationParamTypes[i]) {
+ switch (qemuMigrationParamInfo[i].type) {
case QEMU_MIGRATION_PARAM_TYPE_INT:
if (virJSONValueObjectGetNumberInt(params, name, &pv->value.i) == 0)
pv->set = true;
@@ -764,7 +795,7 @@ qemuMigrationParamsToJSON(qemuMigrationParams *migParams)
if (!pv->set)
continue;
- switch (qemuMigrationParamTypes[i]) {
+ switch (qemuMigrationParamInfo[i].type) {
case QEMU_MIGRATION_PARAM_TYPE_INT:
rc = virJSONValueObjectAppendNumberInt(params, name, pv->value.i);
break;
@@ -1280,7 +1311,7 @@ qemuMigrationParamsFormat(virBuffer *buf,
virBufferAsprintf(buf, "<param name='%s' ",
qemuMigrationParamTypeToString(i));
- switch (qemuMigrationParamTypes[i]) {
+ switch (qemuMigrationParamInfo[i].type) {
case QEMU_MIGRATION_PARAM_TYPE_INT:
virBufferAsprintf(buf, "value='%d'", pv->value.i);
break;
@@ -1357,7 +1388,7 @@ qemuMigrationParamsParse(xmlXPathContextPtr ctxt,
}
rc = 0;
- switch (qemuMigrationParamTypes[param]) {
+ switch (qemuMigrationParamInfo[param].type) {
case QEMU_MIGRATION_PARAM_TYPE_INT:
rc = virStrToLong_i(value, NULL, 10, &pv->value.i);
break;
--
2.35.1

28
libvirt.spec
View File

@ -231,7 +231,7 @@
Summary: Library providing a simple virtualization API
Name: libvirt
Version: 8.5.0
Release: 3%{?dist}%{?extra_release}
Release: 4%{?dist}%{?extra_release}
License: LGPLv2+
URL: https://libvirt.org/
@ -259,6 +259,18 @@ Patch16: libvirt-qemu-don-t-try-to-query-QEMU-about-migration-blockers-during-of
Patch17: libvirt-qemu_migration-Acquire-correct-job-in-qemuMigrationSrcIsAllowed.patch
Patch18: libvirt-virsh-Require-xpath-for-dumpxml.patch
Patch19: libvirt-qemu-skip-hardcoded-hostdev-migration-check-if-QEMU-can-do-it-for-us.patch
Patch20: libvirt-qemu-Pass-migration-flags-to-qemuMigrationParamsApply.patch
Patch21: libvirt-qemu_migration_params-Replace-qemuMigrationParamTypes-array.patch
Patch22: libvirt-qemu_migration-Pass-migParams-to-qemuMigrationSrcResume.patch
Patch23: libvirt-qemu_migration-Apply-max-postcopy-bandwidth-on-post-copy-resume.patch
Patch24: libvirt-qemu-Always-assume-support-for-QEMU_CAPS_MIGRATION_PARAM_XBZRLE_CACHE_SIZE.patch
Patch25: libvirt-qemu_migration-Store-original-migration-params-in-status-XML.patch
Patch26: libvirt-qemu_migration_params-Refactor-qemuMigrationParamsApply.patch
Patch27: libvirt-qemu_migration_params-Refactor-qemuMigrationParamsReset.patch
Patch28: libvirt-qemu_migration_params-Avoid-deadlock-in-qemuMigrationParamsReset.patch
Patch29: libvirt-qemu-Restore-original-memory-locking-limit-on-reconnect.patch
Patch30: libvirt-qemu-Properly-release-job-in-qemuDomainSaveInternal.patch
Patch31: libvirt-qemu-don-t-call-qemuMigrationSrcIsAllowedHostdev-from-qemuMigrationDstPrepareFresh.patch
Requires: libvirt-daemon = %{version}-%{release}
@ -2165,6 +2177,20 @@ exit 0
%changelog
* Fri Jul 29 2022 Jiri Denemark <jdenemar@redhat.com> - 8.5.0-4
- qemu: Pass migration flags to qemuMigrationParamsApply (rhbz#2111070)
- qemu_migration_params: Replace qemuMigrationParamTypes array (rhbz#2111070)
- qemu_migration: Pass migParams to qemuMigrationSrcResume (rhbz#2111070)
- qemu_migration: Apply max-postcopy-bandwidth on post-copy resume (rhbz#2111070)
- qemu: Always assume support for QEMU_CAPS_MIGRATION_PARAM_XBZRLE_CACHE_SIZE (rhbz#2107892)
- qemu_migration: Store original migration params in status XML (rhbz#2107892)
- qemu_migration_params: Refactor qemuMigrationParamsApply (rhbz#2107892)
- qemu_migration_params: Refactor qemuMigrationParamsReset (rhbz#2107892)
- qemu_migration_params: Avoid deadlock in qemuMigrationParamsReset (rhbz#2107892)
- qemu: Restore original memory locking limit on reconnect (rhbz#2107424)
- qemu: Properly release job in qemuDomainSaveInternal (rhbz#1497907)
- qemu: don't call qemuMigrationSrcIsAllowedHostdev() from qemuMigrationDstPrepareFresh() (rhbz#1497907)
* Mon Jul 25 2022 Jiri Denemark <jdenemar@redhat.com> - 8.5.0-3
- qemu: introduce capability QEMU_CAPS_MIGRATION_BLOCKED_REASONS (rhbz#2092833)
- qemu: new function to retrieve migration blocker reasons from QEMU (rhbz#2092833)