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

[Oleksii Kurochko <oleksii.kurochko@gmail.com>]

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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@citrix.com>
> ---
> CC: Jan Beulich<JBeulich@suse.com>
> CC: Roger Pau Monné<roger.pau@citrix.com>
> CC: Oleksii Kurochko<oleksii.kurochko@gmail.com>
>
> 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@gmail.com>

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;

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