Re: [PATCH 4/8] x86/pv: handle reads to the PAT MSR

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Tue, Aug 18, 2020 at 02:50:24PM +0100, Andrew Cooper wrote:
> On 17/08/2020 16:57, Roger Pau Monne wrote:
> > The value in the PAT MSR is part of the ABI between Xen and PV guests,
> > and there's no reason to not allow a PV guest to read it.
> 
> This is faster than using RDMSR to find the constant.
> 
> > Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> 
> Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> 
> (Can fix up on commit)

Sure, I didn't write it down because I assumed it would be obvious,
but worth writing down.

Thanks, Roger.