Re: [Xen-devel] [PATCH] x86/hvm: Conditionally leave CPUID Faulting active in HVM context

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

> From: Andrew Cooper [mailto:andrew.cooper3@xxxxxxxxxx]
> Sent: Monday, January 23, 2017 10:41 PM
> 
> On 16/01/17 11:17, Andrew Cooper wrote:
> > If the hardware supports faulting, and the guest has chosen to use it, leave
> > faulting active in HVM context.
> >
> > It is more efficient to have hardware convert CPUID to a #GP fault (which we
> > don't intercept), than to take a VMExit and have Xen re-inject a #GP fault.
> >
> > Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> > ---
> > CC: Jan Beulich <JBeulich@xxxxxxxx>
> > CC: Jun Nakajima <jun.nakajima@xxxxxxxxx>
> > CC: Kevin Tian <kevin.tian@xxxxxxxxx>
> 
> Ping VT-x ?
> 

sorry overlooked this one:

Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>

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