On 21.03.2023 12:47, Sergey Dyasli wrote:
> --- a/xen/arch/x86/platform_hypercall.c
> +++ b/xen/arch/x86/platform_hypercall.c
> @@ -640,6 +640,36 @@ ret_t do_platform_op(
> }
> break;
>
> +case XENPF_get_ucode_version:
> +{
> +struct xenpf_ucode_version *ver =
On 21/03/2023 11:47 am, Sergey Dyasli wrote:
> Currently it's impossible to get CPU's microcode revision after late
> loading without looking into Xen logs which is not always convenient.
It's not impossible (you can do `modprobe msr; rdmsr 0x8b`), but it is
inconvenient for library code.
>
>
Currently it's impossible to get CPU's microcode revision after late
loading without looking into Xen logs which is not always convenient.
Add a new platform op in order to get the required data from Xen and
provide a wrapper for libxenctrl.
Signed-off-by: Sergey Dyasli
---
