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qemuExtTPMStop: Restore TPM state label more often

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When stopping swtpm we can restore the label either on just the
swtpm's domain specific logfile (/var/log/swtpm/libvirt/qemu/...),
or on the logfile and the state too (/var/lib/libvirt/swtpm/...).

The deciding factor is whether the guest is stopped because of
outgoing migration OR the state is on a shared filesystem.

But this is not correct condition, because for instance saving the
guest into a file (virsh save) is also an outgoing migration.
Alternatively, when the swtpm state is stored on a shared
filesystem, but the guest is destroyed (virsh destroy), i.e.
stopped because of different reason than migration, we want to
restore the seclabels.

The correct condition is: skip restoring the state on outgoing
migration AND shared filesystem.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2161557
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Michal Privoznik 2023-01-27 10:46:55 +01:00
parent 88f0fbf638
commit 794fddf866
1 changed files with 1 additions and 1 deletions
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2
src/qemu/qemu_tpm.c
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@ -1142,7 +1142,7 @@ qemuExtTPMStop(virQEMUDriver *driver,
return;
qemuTPMEmulatorStop(cfg->swtpmStateDir, shortName);
if (outgoingMigration || qemuTPMHasSharedStorage(vm->def))
if (outgoingMigration && qemuTPMHasSharedStorage(vm->def))
restoreTPMStateLabel = false;
if (qemuSecurityRestoreTPMLabels(driver, vm, restoreTPMStateLabel) < 0)