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Re: [Qemu-devel] Re: SVM support in 0.12?
From: |
Jamie Lokier |
Subject: |
Re: [Qemu-devel] Re: SVM support in 0.12? |
Date: |
Fri, 18 Dec 2009 20:03:58 +0000 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
Alexander Graf wrote:
>
> Am 18.12.2009 um 03:39 schrieb Jun Koi <address@hidden>
>
> >On Fri, Dec 18, 2009 at 11:37 AM, Jun Koi <address@hidden>
> >wrote:
> >>Hi,
> >>
> >>I am running latest Qemu 0.12-rc. My guest VM runs Linux kernel
> >>2.6.31.
> >>
> >>Because Qemu now supports SVM, I expect to see the SVM flag in
> >>/proc/cpuinfo, but that is not the case.
> >>
> >>So it seems SVM support is not enabled by default configuration??
> >>
> >
> >My host and guest are both 32 bit Linux, if that matters.
> >
> >(And this is pure Qemu, without using KVM or KQemu)
>
> Kqemu actually works with svm emulation.
>
> Have you tried -cpu qemu32,+svm? I think I only enabled svm on qemu64,
> because I'm not aware of 32-bit AMD CPUs that can do svm.
32-bit VT (Intel) definitely exists.
If there aren't any 32-bit AMDs with SVM, does SVM even have defined
32-bit semantics?
But I see the kvm kernel code can build 32-bit SVM support. I wonder
if it has ever been tested :-)
> Also, back when I developed it, 32-bit kvm didn't really work
> properly. So please let me know what you find out!
Do you mean 32-bit kvm on a 32-bit host, or 32-bit kvm inside your SVM
emulation? kvm works very well on 32-bit Intel hosts.
-- Jamie
- [Qemu-devel] SVM support in 0.12?, Jun Koi, 2009/12/17
- [Qemu-devel] Re: SVM support in 0.12?, Jun Koi, 2009/12/17
- Re: [Qemu-devel] Re: SVM support in 0.12?, Alexander Graf, 2009/12/18
- Re: [Qemu-devel] Re: SVM support in 0.12?, Jun Koi, 2009/12/18
- Re: [Qemu-devel] Re: SVM support in 0.12?, Alexander Graf, 2009/12/18
- Re: [Qemu-devel] Re: SVM support in 0.12?, Jun Koi, 2009/12/21
- Re: [Qemu-devel] Re: SVM support in 0.12?, Andre Przywara, 2009/12/21
- Re: [Qemu-devel] Re: SVM support in 0.12?, Andre Przywara, 2009/12/21
- Re: [Qemu-devel] Re: SVM support in 0.12?,
Jamie Lokier <=
- Re: [Qemu-devel] Re: SVM support in 0.12?, Alexander Graf, 2009/12/18
[Qemu-devel] Re: SVM support in 0.12?, Paolo Bonzini, 2009/12/18