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Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests
From: |
Jamie Lokier |
Subject: |
Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests |
Date: |
Mon, 10 Sep 2007 17:53:36 +0100 |
User-agent: |
Mutt/1.4.1i |
Paul Brook wrote:
> > > What you really want to do is ask your virtualization module what
> > > features it supports.
> >
> > Yes, that needs to be an additional filter.
>
> I'd have thought that would be the *only* interesting set for autodetection.
If that means the same as the features which are efficient for the
guest, then I agree. If there's a difference, I'd have thought you'd
normally want the guest to use only those features which work at
near-native performance, not those which involve a trap and long path
through the virtualisation/emulation, even if they're supported. No
example comes to mind, but that seems like the principle to go for, to
me.
-- Jamie
- Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests, (continued)
- Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests, Avi Kivity, 2007/09/09
- Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests, Jamie Lokier, 2007/09/09
- Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests, Avi Kivity, 2007/09/09
- Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests, Jamie Lokier, 2007/09/09
- Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests, Avi Kivity, 2007/09/09
- Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests, Paul Brook, 2007/09/09
- Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests, Avi Kivity, 2007/09/09
- Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests, Jamie Lokier, 2007/09/09
- Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests, Paul Brook, 2007/09/09
- Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests, Avi Kivity, 2007/09/09
- Re: [kvm-devel] [Qemu-devel] Re: expose host CPU features to guests,
Jamie Lokier <=
[Qemu-devel] expose host CPU features to guests: Take 2, Dan Kenigsberg, 2007/09/10
[Qemu-devel] expose host CPU features to guests: Take 3, Dan Kenigsberg, 2007/09/24