From 3abaa281d35857cd83f9ba3fe2c5638d26388b95 Mon Sep 17 00:00:00 2001
From: Min M Xu <min.m.xu@intel.com>
Date: Wed, 22 Jun 2022 09:11:03 +0800
Subject: OvmfPkg/TdxDxe: Set PcdEmuVariableNvStoreReserved

Set PcdEmuVariableNvStoreReserved with the value in PlatformInfoHob. It
is the address of the EmuVariableNvStore reserved in Pei-less startup.

Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
---
 OvmfPkg/TdxDxe/TdxDxe.c   | 2 ++
 OvmfPkg/TdxDxe/TdxDxe.inf | 1 +
 2 files changed, 3 insertions(+)

diff --git a/OvmfPkg/TdxDxe/TdxDxe.c b/OvmfPkg/TdxDxe/TdxDxe.c
index bfdaef59dd..05cfb597dc 100644
--- a/OvmfPkg/TdxDxe/TdxDxe.c
+++ b/OvmfPkg/TdxDxe/TdxDxe.c
@@ -64,6 +64,8 @@ SetPcdSettings (
     PlatformInfoHob->PcdCpuBootLogicalProcessorNumber
     ));
 
+  PcdSet64S (PcdEmuVariableNvStoreReserved, PlatformInfoHob->PcdEmuVariableNvStoreReserved);
+
   if (TdIsEnabled ()) {
     PcdStatus = PcdSet64S (PcdTdxSharedBitMask, TdSharedPageMask ());
     ASSERT_RETURN_ERROR (PcdStatus);
diff --git a/OvmfPkg/TdxDxe/TdxDxe.inf b/OvmfPkg/TdxDxe/TdxDxe.inf
index a7e0abda15..3ce8a5c32c 100644
--- a/OvmfPkg/TdxDxe/TdxDxe.inf
+++ b/OvmfPkg/TdxDxe/TdxDxe.inf
@@ -68,3 +68,4 @@
   gEfiMdePkgTokenSpaceGuid.PcdConfidentialComputingGuestAttr
   gEfiMdeModulePkgTokenSpaceGuid.PcdTdxSharedBitMask
   gEfiMdeModulePkgTokenSpaceGuid.PcdSetNxForStack
+  gEfiMdeModulePkgTokenSpaceGuid.PcdEmuVariableNvStoreReserved
-- 
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