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Re: [libvirt] [PATCH] Prefer to use 'qemu-system-i386' over 'qemu'



On 03/26/2012 09:59 AM, Daniel P. Berrange wrote:
> From: "Daniel P. Berrange" <berrange redhat com>
> 
> For i686 arch we look for the 'qemu' binary, followed by the
> 'qemu-system-x86_64' binary. This is not good with QEMU 1.0,
> since the 'qemu' binary was renamed to 'qemu-system-i386'
> and the 'qemu' name might be reused for another purpose
> later.
> 
> Make sure we look for 'qemu-system-i386', then 'qemu-system-x86_64'
> then the qemu-kvm binary. Only use 'qemu' as a very last resort

Should we be favoring x86_64 first?  As I understand it:

i686 host can use qemu-system-i386 (fast with kvm); I'm not sure if it
can use qemu-system-x86_64 (but if it does, it won't be with kvm, so it
will be slow)

x86_64 host can use either emulator, and both will be fast thanks to kvm.

I'm not necessarily opposed to your choice of ordering, but a bit more
rationale in the commit message might help.

At any rate,

ACK.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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