[libvirt] [PATCH 8/9] qemu: Only setup vhost if virtType == "kvm"

Cole Robinson crobinso at redhat.com
Thu Aug 1 02:14:38 UTC 2013


vhost only works in KVM mode AIUI, and is infact compiled out if
the emulator is built for non-native architecture.
---
 src/qemu/qemu_command.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 3b275e3..f611940 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -462,8 +462,10 @@ qemuOpenVhostNet(virDomainDefPtr def,
 {
     size_t i;
 
-    /* If the config says explicitly to not use vhost, return now */
-    if (net->driver.virtio.name == VIR_DOMAIN_NET_BACKEND_TYPE_QEMU) {
+    /* If running a plain QEMU guest, or
+     * if the config says explicitly to not use vhost, return now*/
+    if (def->virtType != VIR_DOMAIN_VIRT_KVM ||
+        net->driver.virtio.name == VIR_DOMAIN_NET_BACKEND_TYPE_QEMU) {
         *vhostfdSize = 0;
         return 0;
     }
-- 
1.8.3.1




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