[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH] qemu: whitelist kvm pv eoi feature
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH] qemu: whitelist kvm pv eoi feature |
Date: |
Sun, 13 May 2012 15:05:37 +0300 |
On Sun, May 13, 2012 at 03:02:58PM +0300, Michael S. Tsirkin wrote:
> On Fri, May 11, 2012 at 06:47:43AM -0600, Eric Blake wrote:
> > [adding libvirt, dropping kernel]
> >
> > On 05/11/2012 01:43 AM, Michael S. Tsirkin wrote:
> > > Whitelist kvm pv eoi feature. The feature is enabled
> > > with -cpu kvm64. To disable: -cpu kvm64,-kvm_eoi.
> > >
> > > Signed-off-by: Michael S. Tsirkin <address@hidden>
> > > ---
> > >
> > > Sending a copy to kernel list as this is needed
> > > to test the pv eoi feature recently submitted.
> > >
> > > target-i386/cpuid.c | 2 +-
> > > 1 files changed, 1 insertions(+), 1 deletions(-)
> > >
> > > diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c
> > > index 465ea15..c421b19 100644
> > > --- a/target-i386/cpuid.c
> > > +++ b/target-i386/cpuid.c
> > > @@ -75,7 +75,7 @@ static const char *ext3_feature_name[] = {
> > > };
> > >
> > > static const char *kvm_feature_name[] = {
> > > - "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", "kvm_asyncpf",
> > > NULL, NULL, NULL,
> > > + "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", "kvm_asyncpf",
> > > NULL, "kvm_eoi", NULL,
> >
> > Should libvirt also be recognizing this processor capability in its XML
> > in order to drive the -kvm_eoi option?
>
> I think so.
A follow-up question: does libvirt use -cpu kvm?
How are such features normally handled for
cross-version migration?
> > --
> > Eric Blake address@hidden +1-919-301-3266
> > Libvirt virtualization library http://libvirt.org
> >
>
>