[Qemu-devel] Re: [PATCH] qemu-kvm: Switch to upstream -enable-kvm semantics

[Richard W.M. Jones]

On Tue, Dec 21, 2010 at 04:41:03PM +0100, Markus Armbruster wrote:
> Like this?
> 
> upstream qemu   |  default  |-enable-kvm
> ----------------+-----------+-----------
> KVM available   | disabled  |  enabled
> KVM unavailable | disabled  |    fail
> 
> qemu-kvm        |  default  |-enable-kvm|  -no-kvm
> ----------------+-----------+-----------+-----------
> KVM available   |  enabled* |  enabled  |  disabled
> KVM unavailable | disabled  |    fail   |  disabled
> 
> * differs from upstream

libguestfs wants "best effort" behaviour, and libvirt wants "KVM or die"
behaviour.

Avi, can you comment on whether just opening /dev/kvm O_RDWR is a
reasonable way to detect if KVM is available?

Markus, any idea when we might get the -accel option appearing in
released versions of qemu/KVM?

Rich.

-- 
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