[edk2-devel] [PATCH v2 0/2] SEV-SNP guest support fixes

Gerd Hoffmann kraxel at redhat.com
Thu Mar 30 07:36:19 UTC 2023


On Tue, Mar 28, 2023 at 01:09:22PM -0500, Lendacky, Thomas via groups.io wrote:
> This patch series provides some fixes around AP creation:
> 
> - An erratum on AMD hardware requires that a VMSA not be aligned on a
>   2MB boundary. To work around this issue, allocate 2 pages of memory
>   and using the page that is not 2MB aligned and freeing the other.
> 
> - When parking APs after exiting boot services, the current SNP support
>   will perform an allocation that will not be reflected in memory map
>   being supplied to the OS. Instead of allocating new VMSAs each time,
>   re-use the current VMSA.
> 
> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4353
> 
> ---
> 
> Changes since v1:
>   - Change the order of the patches to make the patch diffs easier
>     to review
>   - Add erratum number to the patch description and code comment
>   - Use existing ALIGN_POINTER macro

Series:
Acked-by: Gerd Hoffmann <kraxel at redhat.com>

take care,
  Gerd



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