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From: "Roth, Michael" <Michael.Roth@amd.com>
To: <devel@edk2.groups.io>
Cc: Tom Lendacky <thomas.lendacky@amd.com>, <ray.ni@intel.com>
Subject: [PATCH v4 2/4] MdePkg: Add PcdSevSnpSecretsAddress to export SEV-SNP secrets page
Date: Wed, 21 Dec 2022 09:50:45 -0600	[thread overview]
Message-ID: <20221221155047.180912-3-michael.roth@amd.com> (raw)
In-Reply-To: <20221221155047.180912-1-michael.roth@amd.com>

OvmfPkg will initially use this to hand off the secrets page address to
UefiCpuPkg, which will need this PCD to access the SEV-SNP secrets page
address. Define this as an MdePkg PCD so it can be accessed by other
packages alongside the secrets page struct defined in MdePkg/Include.

Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Michael Roth <michael.roth@amd.com>
---
 MdePkg/MdePkg.dec | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index e49b2d5b5f..a233a318ba 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -2429,5 +2429,9 @@
   # @Prompt Memory encryption attribute
   gEfiMdePkgTokenSpaceGuid.PcdConfidentialComputingGuestAttr|0|UINT64|0x0000002e
 
+  ## This dynamic PCD indicates the location of the SEV-SNP secrets page.
+  # @Prompt SEV-SNP secrets page address
+  gEfiMdePkgTokenSpaceGuid.PcdSevSnpSecretsAddress|0|UINT64|0x0000002f
+
 [UserExtensions.TianoCore."ExtraFiles"]
   MdePkgExtra.uni
-- 
2.25.1


  parent reply	other threads:[~2022-12-21 15:51 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-21 15:50 [PATCH v4 0/4] Fix AP Jump Table Handling for SEV-SNP Roth, Michael
2022-12-21 15:50 ` [PATCH v4 1/4] MdePkg: Add header for SEV-SNP secrets page struct Roth, Michael
2022-12-21 15:50 ` Roth, Michael [this message]
2022-12-21 15:50 ` [PATCH v4 3/4] OvmfPkg: Initialize the PcdSevSnpSecretsAddress PCD during PEI phase Roth, Michael
2023-01-06  9:19   ` [edk2-devel] " Yao, Jiewen
2022-12-21 15:50 ` [PATCH v4 4/4] UefiCpuPkg: Store SEV-SNP AP jump table in the secrets page Roth, Michael
2022-12-21 17:34 ` [PATCH v4 0/4] Fix AP Jump Table Handling for SEV-SNP Roth, Michael

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