Re: [PATCH] OvmfPkg/AmdSev/SecretPei: Mark SEV launch secret area as reserved

["Yao, Jiewen" <jiewen.yao@intel.com>]

Acked-by: Jiewen Yao <Jiewen.Yao@intel.com>

> -----Original Message-----
> From: Brijesh Singh <brijesh.singh@amd.com>
> Sent: Monday, November 22, 2021 11:43 PM
> To: Dov Murik <dovmurik@linux.ibm.com>; devel@edk2.groups.io
> Cc: brijesh.singh@amd.com; Ard Biesheuvel <ardb+tianocore@kernel.org>;
> Justen, Jordan L <jordan.l.justen@intel.com>; Gerd Hoffmann
> <kraxel@redhat.com>; Erdem Aktas <erdemaktas@google.com>; James
> Bottomley <jejb@linux.ibm.com>; Yao, Jiewen <jiewen.yao@intel.com>; Xu,
> Min M <min.m.xu@intel.com>; Tom Lendacky <thomas.lendacky@amd.com>;
> Tobin Feldman-Fitzthum <tobin@linux.ibm.com>
> Subject: Re: [PATCH] OvmfPkg/AmdSev/SecretPei: Mark SEV launch secret area
> as reserved
> 
> 
> 
> On 11/18/21 5:31 AM, Dov Murik wrote:
> > Mark the SEV launch secret MEMFD area as reserved, which will allow the
> > guest OS to use it during the lifetime of the OS, without creating
> > copies of the sensitive content.
> >
> > Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
> > Cc: Jordan Justen <jordan.l.justen@intel.com>
> > Cc: Gerd Hoffmann <kraxel@redhat.com>
> > Cc: Brijesh Singh <brijesh.singh@amd.com>
> > Cc: Erdem Aktas <erdemaktas@google.com>
> > Cc: James Bottomley <jejb@linux.ibm.com>
> > Cc: Jiewen Yao <jiewen.yao@intel.com>
> > Cc: Min Xu <min.m.xu@intel.com>
> > Cc: Tom Lendacky <thomas.lendacky@amd.com>
> > Cc: Tobin Feldman-Fitzthum <tobin@linux.ibm.com>
> > Signed-off-by: Dov Murik <dovmurik@linux.ibm.com>
> > ---
> >   OvmfPkg/AmdSev/SecretPei/SecretPei.c | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/OvmfPkg/AmdSev/SecretPei/SecretPei.c
> b/OvmfPkg/AmdSev/SecretPei/SecretPei.c
> > index db94c26b54d1..6bf1a55dea64 100644
> > --- a/OvmfPkg/AmdSev/SecretPei/SecretPei.c
> > +++ b/OvmfPkg/AmdSev/SecretPei/SecretPei.c
> > @@ -19,7 +19,7 @@ InitializeSecretPei (
> >     BuildMemoryAllocationHob (
> >       PcdGet32 (PcdSevLaunchSecretBase),
> >       ALIGN_VALUE (PcdGet32 (PcdSevLaunchSecretSize), EFI_PAGE_SIZE),
> > -    EfiBootServicesData
> > +    EfiReservedMemoryType
> >       );
> >
> >     return EFI_SUCCESS;
> >
> 
> 
> Reviewed-by: Brijesh Singh <brijesh.singh@amd.com>
> 
> thanks