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Let's get it work at first. Acked-by: Jiewen Yao > -----Original Message----- > From: kraxel@redhat.com > Sent: Tuesday, June 7, 2022 10:45 PM > To: Yao, Jiewen > Cc: devel@edk2.groups.io; Pawel Polawski ; Brijesh > Singh ; Oliver Steffen ; Jame= s > Bottomley ; Ard Biesheuvel ; > Aktas, Erdem ; Feng, Bob C > ; Chen, Christine ; Gao, Limi= ng > ; Xu, Min M ; Tom > Lendacky ; Justen, Jordan L > ; Jiri Slaby > Subject: Re: [edk2-devel] [PATCH v4 1/1] OvmfPkg/Sec: fix stack switch >=20 > On Tue, Jun 07, 2022 at 01:43:00PM +0000, Yao, Jiewen wrote: > > Hello > > As far as I know the TemporaryRamMigration() is an optional PPI accordi= ng to > PI spec, I forget why we add it in the beginning. >=20 > git log isn't very helpful here either, seems to date back to pre-git > times without descriptive commit messages. >=20 > just commenting it out doesn't work, so probably there is some reason > which is valid still ... >=20 > take care, > Gerd