From b8324bc3d5d44e5b1644a66f1b6e07b6e4ad9350 Mon Sep 17 00:00:00 2001
From: "Lee, Chun-Yi" <jlee@suse.com>
Date: Wed, 15 Feb 2023 14:39:37 +0800
Subject: [PATCH] Revert "OvmfPkg/OvmfXen: Set PcdFSBClock"

This reverts commit 71cdb91f313380152d7bf38cfeebe76f5b2d39ac.
---
 OvmfPkg/OvmfXen.dsc                       | 4 +++-
 OvmfPkg/XenPlatformPei/Xen.c              | 4 ----
 OvmfPkg/XenPlatformPei/XenPlatformPei.inf | 1 -
 3 files changed, 3 insertions(+), 6 deletions(-)

Index: edk2-edk2-stable202302/OvmfPkg/OvmfXen.dsc
===================================================================
--- edk2-edk2-stable202302.orig/OvmfPkg/OvmfXen.dsc
+++ edk2-edk2-stable202302/OvmfPkg/OvmfXen.dsc
@@ -456,6 +456,9 @@
   # Point to the MdeModulePkg/Application/UiApp/UiApp.inf
   gEfiMdeModulePkgTokenSpaceGuid.PcdBootManagerMenuFile|{ 0x21, 0xaa, 0x2c, 0x46, 0x14, 0x76, 0x03, 0x45, 0x83, 0x6e, 0x8a, 0xb6, 0xf4, 0x66, 0x23, 0x31 }
 
+  ## Xen vlapic's frequence is 100 MHz
+  gEfiMdePkgTokenSpaceGuid.PcdFSBClock|100000000
+
   # We populate DXE IPL tables with 1G pages preferably on Xen
   gEfiMdeModulePkgTokenSpaceGuid.PcdUse1GPageTable|TRUE
 
@@ -486,7 +489,6 @@
   gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio64Base|0x0
   gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio64Size|0x800000000
 
-  gEfiMdePkgTokenSpaceGuid.PcdFSBClock|100000000
   gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut|0
 
   # Set video resolution for text setup.
Index: edk2-edk2-stable202302/OvmfPkg/XenPlatformPei/Xen.c
===================================================================
--- edk2-edk2-stable202302.orig/OvmfPkg/XenPlatformPei/Xen.c
+++ edk2-edk2-stable202302/OvmfPkg/XenPlatformPei/Xen.c
@@ -634,9 +634,5 @@ CalibrateLapicTimer (
   Freq = DivU64x64Remainder (Dividend, TscTick2 - TscTick, NULL);
   DEBUG ((DEBUG_INFO, "APIC Freq % 8lu Hz\n", Freq));
 
-  ASSERT (Freq <= MAX_UINT32);
-  Status = PcdSet32S (PcdFSBClock, (UINT32)Freq);
-  ASSERT_EFI_ERROR (Status);
-
   UnmapXenPage (SharedInfo);
 }
Index: edk2-edk2-stable202302/OvmfPkg/XenPlatformPei/XenPlatformPei.inf
===================================================================
--- edk2-edk2-stable202302.orig/OvmfPkg/XenPlatformPei/XenPlatformPei.inf
+++ edk2-edk2-stable202302/OvmfPkg/XenPlatformPei/XenPlatformPei.inf
@@ -86,7 +86,6 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplSwitchToLongMode
   gEfiMdeModulePkgTokenSpaceGuid.PcdUse1GPageTable
   gEfiMdeModulePkgTokenSpaceGuid.PcdPteMemoryEncryptionAddressOrMask
-  gEfiMdePkgTokenSpaceGuid.PcdFSBClock
   gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy
   gUefiCpuPkgTokenSpaceGuid.PcdCpuLocalApicBaseAddress