From 9a9b33b3d6f58c306e8352dd8b685b5b147727a3 Mon Sep 17 00:00:00 2001
From: Min Xu <min.m.xu@intel.com>
Date: Sun, 6 Mar 2022 10:20:36 +0800
Subject: OvmfPkg/PlatformPei: Move global variables to PlatformInfoHob

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

The intention of PlatformInitLib is to extract the common function used
in OvmfPkg/PlatformPei. This lib will be used not only in PEI phase but
also in SEC phase. SEC phase cannot use global variables between
different functions. So PlatformInfoHob is created to hold the
informations shared between functions. For example, HostBridgeDevId
corespond to mHostBridgeDevId in PlatformPei.

In this patch we will first move below global variables to
PlatformInfoHob.
 - mBootMode
 - mS3Supported
 - mPhysMemAddressWidth
 - mMaxCpuCount
 - mHostBridgeDevId
 - mQ35SmramAtDefaultSmbase
 - mQemuUc32Base
 - mS3AcpiReservedMemorySize
 - mS3AcpiReservedMemoryBase

PlatformInfoHob also holds other information, for example,
PciIoBase / PciIoSize. This is because in SEC phase, PcdSetxxx
doesn't work. So we will restruct the functions which set PCDs
into two, one for PlatformInfoLib, one for PlatformPei.

So in this patch we first move global variables and PCDs to
PlatformInfoHob. All the changes are in OvmfPkg/PlatformPei.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@intel.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: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
---
 OvmfPkg/PlatformPei/MemTypeInfo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'OvmfPkg/PlatformPei/MemTypeInfo.c')

diff --git a/OvmfPkg/PlatformPei/MemTypeInfo.c b/OvmfPkg/PlatformPei/MemTypeInfo.c
index fc5ccfaf11..c8fcf17326 100644
--- a/OvmfPkg/PlatformPei/MemTypeInfo.c
+++ b/OvmfPkg/PlatformPei/MemTypeInfo.c
@@ -208,7 +208,7 @@ MemTypeInfoInitialization (
 {
   EFI_STATUS  Status;
 
-  if (!FeaturePcdGet (PcdSmmSmramRequire)) {
+  if (!mPlatformInfoHob.SmmSmramRequire) {
     //
     // EFI_PEI_READ_ONLY_VARIABLE2_PPI will never be available; install
     // the default memory type information HOB right away.
-- 
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