From: Michal Privoznik <mprivozn@redhat.com>
Date: Tue, 8 Nov 2022 07:22:16 +0000 (+0100)
Subject: qemu: Assume QEMU_CAPS_VIRTIO_BLK_NUM_QUEUES
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=f33d9ce97765603453c397836b3faa481618a099;p=libvirt.git

qemu: Assume QEMU_CAPS_VIRTIO_BLK_NUM_QUEUES

Introduced in QEMU's commit of v2.7.0-rc0~83^2 the .num-queues
attribute of virtio-blk device is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---

diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c
index 243ec29c71..4a01fe4d14 100644
--- a/src/qemu/qemu_validate.c
+++ b/src/qemu/qemu_validate.c
@@ -2977,13 +2977,6 @@ qemuValidateDomainDeviceDefDiskFrontend(const virDomainDiskDef *disk,
         break;
 
     case VIR_DOMAIN_DISK_BUS_VIRTIO:
-        if (disk->queues &&
-            !virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_BLK_NUM_QUEUES)) {
-            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                           _("num-queues property isn't supported by this "
-                             "QEMU binary"));
-            return -1;
-        }
         if (disk->queue_size > 0 &&
             !virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_BLK_QUEUE_SIZE)) {
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",