Hi Paolo and thanks for your help. I upgraded the following (compiled from source) qemu : 1.5.2 stable libvirt : 1.1.1 but for some reason when I run the version command inside virsh: Compiled against library: libvirt 1.1.1 Using library: libvirt 1.1.1 Using API: QEMU 1.1.1 Running hypervisor: QEMU 0.12.1 It says that my running Hypervisor is QEMU 0.12.1 Could you please tell me what did I miss, how do I upgrade the hypervisor?

Thanks, Naor -----Original Message----- From: Paolo Bonzini [mailto:paolo.bonzini@gmail.com] On Behalf Of Paolo Bonzini Sent: Tuesday, August 20, 2013 12:28 PM To: Naor Shlomo Cc: kvm(a)vger.kernel.org Subject: Re: Multi Queue KVM Support Il 20/08/2013 05:21, Naor Shlomo ha scritto: > Hi Paolo, > > The host is running CentOS release 6.3 (Final). > I did "yum upgrade libvirt" and "yum upgrade qemu-kvm" a couple of days ago and ended up with these versions. > > What do you suggest regarding qemu? compile 6.5 or later myself? RHEL/CentOS 6.5 is not yet out, it's still a few months before it's released. You can compile QEMU 1.6 from source, or wait for CentOS to have the feature. Paolo > I appreciate your help, > Naor > > -----Original Message----- > From: Paolo Bonzini [mailto:paolo.bonzini@gmail.com] On Behalf Of > Paolo Bonzini > Sent: Monday, August 19, 2013 11:22 PM > To: Naor Shlomo > Cc: kvm(a)vger.kernel.org > Subject: Re: Multi Queue KVM Support > > Il 19/08/2013 13:29, Naor Shlomo ha scritto: >> Hello experts, >> >> I am trying to use the multi queue support on a Linux guest running Kernel 3.9.7. >> >> The host's virsh version command reports the following output: >> Compiled against library: libvirt 0.10.2 Using library: libvirt >> 0.10.2 Using API: QEMU 0.10.2 Running hypervisor: QEMU 0.12.1 > > Is it RHEL or CentOS or Scientific Linux, or something else? If RHEL/CentOS, what release? > >> The problem is that virtio_has_feature(vdev, VIRTIO_NET_F_MQ) returns FALSE and I don't know why. > > This version of QEMU is too old. It's possible that 6.5 will have multiqueue, but I'm not entirely sure. > > Paolo > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in the > body of a message to majordomo(a)vger.kernel.org More majordomo info at > http://vger.kernel.org/majordomo-info.html >