Re: [Qemu-devel] [PATCH 1/2] KVM: Add new -cpu best

[Peter Maydell]

On 8 January 2012 23:52, Alexander Graf <address@hidden> wrote:
> During discussions on whether to make -cpu host the default in SLE, I found
> myself disagreeing to the thought, because it potentially opens a big can
> of worms for potential bugs. But if I already am so opposed to it for SLE, how
> can it possibly be reasonable to default to -cpu host in upstream QEMU? And
> what would a sane default look like?
>
> So I had this idea of looping through all available CPU definitions. We can
> pretty well tell if our host is able to execute any of them by checking the
> respective flags and seeing if our host has all features the CPU definition
> requires. With that, we can create a -cpu type that would fall back to the
> "best known CPU definition" that our host can fulfill. On my Phenom II
> system for example, that would be -cpu phenom.

...shouldn't this be supported on at least all hosts with KVM support,
not just x86?

Also I don't see any documentation updates in this patchset :-)

-- PMM