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

["Ni, Ray" <ray.ni@intel.com>]

Acked-by: Ray Ni <ray.ni@intel.com>

> -----Original Message-----
> From: Gerd Hoffmann <kraxel@redhat.com>
> Sent: Thursday, March 30, 2023 3:36 PM
> To: devel@edk2.groups.io; thomas.lendacky@amd.com
> Cc: Dong, Eric <eric.dong@intel.com>; Ni, Ray <ray.ni@intel.com>; Kumar, Rahul R <rahul.r.kumar@intel.com>; Michael
> Roth <michael.roth@amd.com>; Ashish Kalra <Ashish.Kalra@amd.com>
> Subject: Re: [edk2-devel] [PATCH v2 0/2] SEV-SNP guest support fixes
> 
> 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@redhat.com>
> 
> take care,
>   Gerd