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[libvirt] [PATCHv4 1/4] Allow LUN type disks to have no source



CD-ROMs and Floppies are allowed to have no source to imply they are
empty or disconnected. Since the LUN type is used for raw CD-ROM access
with QEMU (and VMWare in the future), it also needs to allow an empty
source when the raw CD-ROM device is disconnected from the domain.
---
 src/conf/domain_conf.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index aed2a9d..a9ff61c 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -5218,9 +5218,11 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt,
     }
 
     /* Only CDROM and Floppy devices are allowed missing source path
-     * to indicate no media present */
+     * to indicate no media present. LUN is for raw access CD-ROMs
+     * that are not attached to a physical device presently */
     if (source == NULL && hosts == NULL && !def->srcpool &&
         def->device != VIR_DOMAIN_DISK_DEVICE_CDROM &&
+        def->device != VIR_DOMAIN_DISK_DEVICE_LUN &&
         def->device != VIR_DOMAIN_DISK_DEVICE_FLOPPY) {
         virReportError(VIR_ERR_NO_SOURCE,
                        target ? "%s" : NULL, target);
-- 
1.8.1.5


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