Re: [PATCH] x86, CPU, AMD: Add workaround for family 16h, erratum 793

H. Peter Anvin
2014-01-14T16:31:01Z

On 01/14/2014 08:27 AM, Borislav Petkov wrote:
> From: Borislav Petkov <bp@suse.de>
>
> This adds the workaround for erratum 793 as a precaution in case not
> every BIOS implements it. This addresses CVE-2013-6885.
>
> Signed-off-by: Borislav Petkov <bp@suse.de>

> +
> +#define MSR_AMD_LS_CFG 0xc0011020
> + /* F16h, models 00h-0fh, erratum 793 */
> + if (c->x86 == 0x16 && c->x86_model <= 0xf) {

Please put MSR_AMD_LS_CFG in msr-index.h or at least at the top of the
file, and put the CVE reference in the comment.

Otherwise, looks good.

-hpa