Re: [PATCH for-4.21] x86/ucode: Add extra rows to the entrysign model table (again)

[Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>]

On 11/14/25 4:24 PM, Andrew Cooper wrote:

> Link: https://git.kernel.org/tip/dd14022a7ce96963aa923e35cf4bcc8c32f95840
> Fixes: ff8228ab4658 ("x86/ucode: Relax digest check when Entrysign is fixed in firmware")
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> ---
> CC: Jan Beulich <JBeulich@xxxxxxxx>
> CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> CC: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
>
> Found because AMD have released ucode to fix RDSEED on this CPU, and I
> cross-referenced the tables.
>
> Again, for 4.21 even at this juncture.  It wants backporting everywhere in due
> course.
>     
The same as for previous/another patch:
  Release-Acked-By: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>

Thanks.

~ Oleksii
> ---
>  xen/arch/x86/cpu/microcode/amd.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/xen/arch/x86/cpu/microcode/amd.c b/xen/arch/x86/cpu/microcode/amd.c
> index 550b8c1e57ec..4a7573c885e5 100644
> --- a/xen/arch/x86/cpu/microcode/amd.c
> +++ b/xen/arch/x86/cpu/microcode/amd.c
> @@ -659,6 +659,7 @@ void __init amd_check_entrysign(void)
>      case 0x0b1010: fixed_rev = 0x47; break;
>      case 0x0b2040: fixed_rev = 0x32; break;
>      case 0x0b4040: fixed_rev = 0x32; break;
> +    case 0x0b4041: fixed_rev = 0x02; break;
>      case 0x0b6000: fixed_rev = 0x32; break;
>      case 0x0b6080: fixed_rev = 0x32; break;
>      case 0x0b7000: fixed_rev = 0x32; break;
>