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qemu: Introduce qemuIsSharedHostdev

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Add a single boolean function to handle whether the hostdev is shared or not.

Use the new function for the qemu{Add|Remove}SharedHostdev calls as well
as qemuSetUnprivSGIO. NB: This third usage fixes a possible bug where
if this feature is enabled at some time in the future and the shareable flag
wasn't set, the sgio would have been erroneously set.

Signed-off-by: John Ferlan <jferlan@redhat.com>
This commit is contained in:
John Ferlan 2015-06-16 13:33:37 -04:00
parent 4f4ac3913a
commit 8c43258ed5
1 changed files with 16 additions and 12 deletions
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28
src/qemu/qemu_conf.c
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@ -1201,6 +1201,17 @@ qemuAddSharedDisk(virQEMUDriverPtr driver,
}
static bool
qemuIsSharedHostdev(virDomainHostdevDefPtr hostdev)
{
return (hostdev->shareable &&
(hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI &&
hostdev->source.subsys.u.scsi.protocol !=
VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI));
}
static char *
qemuGetSharedHostdevKey(virDomainHostdevDefPtr hostdev)
{
@ -1238,10 +1249,7 @@ qemuAddSharedHostdev(virQEMUDriverPtr driver,
char *key = NULL;
int ret = -1;
if (!hostdev->shareable ||
!(hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI &&
hostdev->source.subsys.u.scsi.protocol != VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI))
if (!qemuIsSharedHostdev(hostdev))
return 0;
if (!(key = qemuGetSharedHostdevKey(hostdev)))
@ -1342,10 +1350,7 @@ qemuRemoveSharedHostdev(virQEMUDriverPtr driver,
char *key = NULL;
int ret;
if (!hostdev->shareable ||
!(hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI &&
hostdev->source.subsys.u.scsi.protocol != VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI))
if (!qemuIsSharedHostdev(hostdev))
return 0;
if (!(key = qemuGetSharedHostdevKey(hostdev)))
@ -1407,11 +1412,10 @@ qemuSetUnprivSGIO(virDomainDeviceDefPtr dev)
} else if (dev->type == VIR_DOMAIN_DEVICE_HOSTDEV) {
hostdev = dev->data.hostdev;
if (!qemuIsSharedHostdev(hostdev))
return 0;
if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
hostdev->source.subsys.type ==
VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI &&
hostdev->source.subsys.u.scsi.sgio) {
if (hostdev->source.subsys.u.scsi.sgio) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("'sgio' is not supported for SCSI "
"generic device yet "));