Re: [PATCH v4 2/5] x86/pv: allow reading FEATURE_CONTROL MSR

[Jan Beulich <jbeulich@xxxxxxxx>]

On 07.09.2020 12:31, Roger Pau Monne wrote:
> Linux PV guests will attempt to read the FEATURE_CONTROL MSR, so move
> the handling done in VMX code into guest_rdmsr as it can be shared
> between PV and HVM guests that way.
> 
> Note that there's a slight behavior change and attempting to read the
> MSR when no features are available will result in a fault.
> 
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>