Re: [libvirt] [fedora-virt] qemu 1.1.0 in Rawhide, and planned backport to F17 (was: Re: Upgrading qemu to 1.1 in rawhide)

On Fri, Jul 06, 2012 at 04:13:26PM +0100, Richard W.M. Jones wrote: > On Fri, Jul 06, 2012 at 04:06:13PM +0100, Daniel P. Berrange wrote: > > On Fri, Jul 06, 2012 at 03:51:58PM +0100, Richard W.M. Jones wrote: > > > > > > Here is the output of virsh capabilities. It seems to make no sense. > > > But it might indicate that something about detection of the > > > qemu-kvm-1.1.0 binary fails, so libvirt assumes that it's not working. > > > > With luck libvirt should have said what's wrong via syslog. Can > > you see if there were any log messages ? > The full output of that failing command is: > > LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin /usr/bin/qemu-system-x86_64 -device ? -device pci-assign,? -device virtio-blk-pci,? -device virtio-net-pci,? -device scsi-disk,? > KVM not supported for this target > No accelerator found! > > Adding the option '-machine accel=kvm:tcg' fixes the output. Sigh, qemu-kvm.git has done a broken merge yet again. Binaries built from qemu.git work fine when /dev/kvm is missing & this shoud not be changed by qemu-kvm.git I've previously fixed it with commit ce967f6610dcd7b7762dbad5a639fecf42d5c76d Author: Daniel P. Berrange <berrange(a)redhat.com&gt; Date: Fri Aug 5 09:50:29 2011 +0100 Fix default accelerator when configured with --disable-kvm The default accelerator is hardcoded to 'kvm'. This is a fine default for qemu-kvm normally, but if the user built with ./configure --disable-kvm, then the resulting binaries will not work by default * vl.c: Default to 'tcg' unless CONFIG_KVM is defined Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com&gt; Signed-off-by: Marcelo Tosatti <mtosatti(a)redhat.com&gt; but this code seems to have changed somewhat