Re: [PATCH v2 05/10] x86/boot: Record MSR_ARCH_CAPS for the Raw and Host CPU policy

[Andrew Cooper]

On 24/05/2023 12:25 pm, Andrew Cooper wrote:
> diff --git a/xen/arch/x86/cpu/common.c b/xen/arch/x86/cpu/common.c
> index 9bbb385db42d..f1084bb1ed36 100644
> --- a/xen/arch/x86/cpu/common.c
> +++ b/xen/arch/x86/cpu/common.c
> @@ -477,6 +477,11 @@ static void generic_identify(struct cpuinfo_x86 *c)
>               cpuid_count(0xd, 1,
>                           &c->x86_capability[FEATURESET_Da1],
>                           &tmp, &tmp, &tmp);
> +
> +     if (test_bit(X86_FEATURE_ARCH_CAPS, c->x86_capability))
> +             rdmsr(MSR_ARCH_CAPABILITIES,
> +                   c->x86_capability[FEATURESET_10Al],
> +                   c->x86_capability[FEATURESET_10Ah]);

I managed to send out a stale version.  I've corrected this and the
other instances locally.

~Andrew