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Re: [Qemu-devel] expose host CPU features to guests: Take 2
From: |
Jamie Lokier |
Subject: |
Re: [Qemu-devel] expose host CPU features to guests: Take 2 |
Date: |
Mon, 10 Sep 2007 18:16:24 +0100 |
User-agent: |
Mutt/1.4.1i |
Dan Kenigsberg wrote:
> On Mon, Sep 10, 2007 at 12:47:51PM +0100, Natalia Portillo wrote:
> > I don't see in what is it useful without KVM/KQEMU.
>
> It is not. I tried to be clear about it in my post. Sorry for not being
> clearer.
Some day it may be useful without KVM/KQEMU, but not for a long time.
There are instructions, for example MMX/SSE, which might be translated
efficiently to single instructions on some host CPUs but to long
function calls on others. But that won't happen until the translation
back end is quite a lot more sophisticated than it is now.
-- 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, 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, 2007/09/10
[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
- Re: [Qemu-devel] expose host CPU features to guests: Take 3, andrzej zaborowski, 2007/09/24
- Re: [kvm-devel] [Qemu-devel] expose host CPU features to guests: Take 3, Dan Kenigsberg, 2007/09/25
- Re: [kvm-devel] [Qemu-devel] expose host CPU features to guests: Take 3, Avi Kivity, 2007/09/25
- Re: [kvm-devel] [Qemu-devel] expose host CPU features to guests: Take 3, J. Mayer, 2007/09/25
- Re: [kvm-devel] [Qemu-devel] expose host CPU features to guests: Take 3, Avi Kivity, 2007/09/25
- Re: [kvm-devel] [Qemu-devel] expose host CPU features to guests: Take 3, Avi Kivity, 2007/09/25
- Re: [kvm-devel] [Qemu-devel] expose host CPU features to guests: Take 3, J. Mayer, 2007/09/25
- Re: [kvm-devel] [Qemu-devel] expose host CPU features to guests: Take 3, Avi Kivity, 2007/09/25
- Re: [kvm-devel] [Qemu-devel] expose host CPU features to guests: Take 3, Fabrice Bellard, 2007/09/25