Hi Gerd,

(I assume your comments are for patch 2/2)

On 02/11/2021 12:03, Gerd Hoffmann wrote:
> On Tue, Nov 02, 2021 at 07:34:21AM +0000, Dov Murik wrote:
>> The SEV launch secret area and the QEMU hashes table area were specified
>> in the OvmfPkg/AmdSev/AmdSevX64 MEMFD but not in OvmfPkg/OvmfPkgX64.
>>
>> Add them in OvmfPkgX64.fdf.
>>
>> After this change the two MEMFD descriptions are identical:
>>
>>     $ sed -n -e '/FD.MEMFD/,/FV.SECFV/p' OvmfPkg/OvmfPkgX64.fdf | sha1sum
>>     6ff89173952413fbdb7ffbbf42f8bc389c928500  -
>>     $ sed -n -e '/FD.MEMFD/,/FV.SECFV/p' OvmfPkg/AmdSev/AmdSevX64.fdf | 
>> sha1sum
>>     6ff89173952413fbdb7ffbbf42f8bc389c928500  -
> 
> I'm wondering whenever you actually tried to boot a sev guest
> in microvm?
> 

No I haven't tried.  Do you want Microvm to be able to boot SEV guests,
or do you intentionally want to keep functionality out so it stays small?

> I suspect it'll need more changes to actually work.
> 

I saw MicrovmX64.fdf already has some SEV-related entries (like
PcdOvmfSecGhcbBackupBase), so I just added these so that its MEMFD will
be identical to AmdSevX64 and OvmfPkgX64.

-Dov


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