On Fri, Jul 06, 2012 at 04:26:22PM +0100, Daniel P. Berrange wrote:
> 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@xxxxxxxxxx>
> 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@xxxxxxxxxx>
> Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>
>
>
> but this code seems to have changed somewhat
It was broken by this commit
commit 3ad763fcba5bd0ec5a79d4a9b6baeef119dd4a3d
Author: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
Date: Fri Mar 2 10:30:43 2012 +0100
qemu-kvm: Use machine options to configure qemu-kvm defaults
Upstream is moving towards this mechanism, so start using it in qemu-kvm
already to configure the specific defaults: kvm enabled on, just like
in-kernel irqchips.
Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
Daniel
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