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