Re: [Xen-devel] [PATCH] x86/svm: Replace opencoded 1GB superpage check

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 01/03/2017 12:53 PM, Andrew Cooper wrote:
> No functional change.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> ---
> CC: Jan Beulich <JBeulich@xxxxxxxx>
> CC: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
> CC: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>

Reviewed-by:  Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>

> ---
>  xen/arch/x86/hvm/svm/svm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/xen/arch/x86/hvm/svm/svm.c b/xen/arch/x86/hvm/svm/svm.c
> index 89daa39..04a7b60 100644
> --- a/xen/arch/x86/hvm/svm/svm.c
> +++ b/xen/arch/x86/hvm/svm/svm.c
> @@ -1473,7 +1473,7 @@ const struct hvm_function_table * __init start_svm(void)
>  
>      svm_function_table.hap_supported = !!cpu_has_svm_npt;
>      svm_function_table.hap_capabilities = HVM_HAP_SUPERPAGE_2MB |
> -        ((cpuid_edx(0x80000001) & 0x04000000) ? HVM_HAP_SUPERPAGE_1GB : 0);
> +        (cpu_has_page1gb ? HVM_HAP_SUPERPAGE_1GB : 0);
>  
>      return &svm_function_table;
>  }


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