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qemu_hotplug: Do not allow absent values in rom settings

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If there are absent values in an already existing element
specifying rom settings, we simply use the old ones. This
behaviour is not desired, as users might think that deleting the
element from XML would delete the setting (because the hotplug
succeeds) - which does not happen. Because of that, we should not
accept an interface without elements that cannot be changed.

Therefore, we should not allow absent values for already existing
rom setting during hotplug.

Resolves: https://issues.redhat.com/browse/RHEL-7109
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Kristina Hanicova 2024-07-24 13:02:15 +02:00 committed by Michal Privoznik
parent b53e9f834b
commit e5eb64e9fd
1 changed files with 0 additions and 6 deletions
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6
src/qemu/qemu_hotplug.c
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@ -3838,16 +3838,12 @@ qemuDomainChangeNet(virQEMUDriver *driver,
/* device alias is checked already in virDomainDefCompatibleDevice */
if (newdev->info.rombar == VIR_TRISTATE_SWITCH_ABSENT)
newdev->info.rombar = olddev->info.rombar;
if (olddev->info.rombar != newdev->info.rombar) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("cannot modify network device rom bar setting"));
goto cleanup;
}
if (!newdev->info.romfile)
newdev->info.romfile = g_strdup(olddev->info.romfile);
if (STRNEQ_NULLABLE(olddev->info.romfile, newdev->info.romfile)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("cannot modify network rom file"));
@ -3860,8 +3856,6 @@ qemuDomainChangeNet(virQEMUDriver *driver,
goto cleanup;
}
if (newdev->info.romenabled == VIR_TRISTATE_BOOL_ABSENT)
newdev->info.romenabled = olddev->info.romenabled;
if (olddev->info.romenabled != newdev->info.romenabled) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("cannot modify network device rom enabled setting"));