Re: [PATCH] KVM: Don't automatically expose the TSC deadline timer in cpuid

[Avi Kivity <avi@redhat.com>]

On 12/26/2011 12:43 PM, Alexey Zaytsev wrote:
> On Mon, Dec 26, 2011 at 12:35, Avi Kivity <avi@redhat.com> wrote:
> > On 12/26/2011 10:42 AM, Liu, Jinsong wrote:
> >> >  }
> >> > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> >> > index df23dff..1171def 100644
> >> > --- a/arch/x86/kvm/x86.c
> >> > +++ b/arch/x86/kvm/x86.c
> >> > @@ -2089,6 +2089,9 @@ int kvm_dev_ioctl_check_extension(long ext)
> >> >     case KVM_CAP_TSC_CONTROL:
> >> >             r = kvm_has_tsc_control;
> >> >             break;
> >> > +   case KVM_CAP_TSC_DEADLINE_TIMER:
> >> > +           r = boot_cpu_has(X86_FEATURE_TSC_DEADLINE_TIMER);
> >> > +           break;
> >>
> >> kvm tsc deadline timer is pure software emulated, not depend on host physically.
> >
> > Yeah, I want to reconsider it in the 3.3 cycle.  I'm not so hot on
> > exposing non hardware features anymore, at least we want better
> > reporting to userspace.
> >
>
> Just as a reminder, could you please revert the problematic commit
> (a3e06bbe) for 3.2?

I plan to post this as a fix.

If  you can, please test it:

  git://git.kernel.org/pub/scm/virt/kvm/kvm.git kvm-updates/3.2

-- 
error compiling committee.c: too many arguments to function