Re: [Xen-devel] [PATCH v9 05/11] x86/hvm: Permit guests direct access to MSR_{SPEC_CTRL, PRED_CMD}

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 19/01/18 10:52, Jan Beulich wrote:
>>>> On 18.01.18 at 16:46, <andrew.cooper3@xxxxxxxxxx> wrote:
>> @@ -292,6 +301,16 @@ static int update_domain_cpuid_info(struct domain *d,
>>              d->arch.pv_domain.cpuidmasks->e1cd = mask;
>>          }
>>          break;
>> +
>> +    case 0x80000008:
>> +        /*
>> +         * If the IBRB policy has changed, we need to recalculate the MSR
> "IBPB" I think? Other than that
> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

Indeed.  Sorry.  (I'm going to grep across the codebase for any other
mistakes before committing, because I doubt this is the only example).

~Andrew

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