Re: [libvirt] [PATCH 2/3] Detect newer qemu-kvm versions

The KVM version string can be one of the following: - qemu-kvm-x.y.z in stable releases - kvm-XX for kvm versions up to kvm-85 - qemu-kvm-devel-XX for kvm version kvm-86 and later

There are only a few of places where we need to detect differences between KVM versions based on 0.9.1: 1) VNET_HDR introduced in kvm-74 2) -incoming tcp introduced in kvm-79 3) -incoming exec introduced in kvm-80 4) -incoming stdio in all earlier kvm versions With qemu-kvm-0.10.x, we can now assume that (1) is available if it's a KVM release, (2) and (3) is always available and (4) is never available. So, from now on we should only need to check the qemu version number and the "is_kvm" flag for detecting feature availability. We only need the KVM version number for older releases. Signed-off-by: Mark McLoughlin <markmc(a)redhat.com&gt;