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

[Avi Kivity <avi@redhat.com>]

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.

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