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From: Michael Roth <michael.roth@amd.com>
To: <devel@edk2.groups.io>
Cc: Tom Lendacky <thomas.lendacky@amd.com>, "Ni, Ray" <ray.ni@intel.com>
Subject: [PATCH v3 2/4] MdePkg: Add PcdSevSnpSecretsAddress to export SEV-SNP secrets page
Date: Fri, 20 May 2022 10:27:28 -0500	[thread overview]
Message-ID: <20220520152730.7924-3-michael.roth@amd.com> (raw)
In-Reply-To: <20220520152730.7924-1-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.

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 f1ebf9e251..a365bfcfe8 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -2417,5 +2417,9 @@
   # @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:[~2022-05-20 15:29 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-20 15:27 [PATCH v3 0/4] Fix AP Jump Table Handling for SEV-SNP Michael Roth
2022-05-20 15:27 ` [PATCH v3 1/4] MdePkg: Add header for SEV-SNP secrets page struct Michael Roth
2022-05-20 15:27 ` Michael Roth [this message]
2022-05-20 15:27 ` [PATCH v3 3/4] OvmfPkg: Initialize the PcdSevSnpSecretsAddress PCD during PEI phase Michael Roth
2022-05-20 15:27 ` [PATCH v3 4/4] UefiCpuPkg: Store SEV-SNP AP jump table in the secrets page Michael Roth
2022-05-23 13:57   ` Lendacky, Thomas
2022-05-23 13:58 ` [PATCH v3 0/4] Fix AP Jump Table Handling for SEV-SNP Lendacky, Thomas

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