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qemuValidateDomainDeviceDefVideo: Reject non-default video head count for devices not supporting it

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Only QXL and virtio-vga actually propagate the 'heads' attribute as
'max_outputs' to the commandline of qemu. Reject the setting when
non-default value is used for any other video type.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2036300
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2022-01-18 16:59:35 +01:00
parent 37c0a25ca0
commit 1652babf15
1 changed files with 7 additions and 0 deletions
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7
src/qemu/qemu_validate.c
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@ -2480,6 +2480,13 @@ qemuValidateDomainDeviceDefVideo(const virDomainVideoDef *video,
virDomainVideoTypeToString(video->type));
return -1;
}
if (video->heads != 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("video type '%s' doesn't support multiple 'heads'"),
virDomainVideoTypeToString(video->type));
return -1;
}
}
if (video->accel && video->accel->accel2d == VIR_TRISTATE_SWITCH_ON) {