From 661cab5d6a45308dcb7fb37c646e32efc1a087c4 Mon Sep 17 00:00:00 2001
From: rsun3 <rsun3@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Fri, 6 Jul 2012 05:49:53 +0000
Subject: [PATCH] UefiCpuPkg CpuDxe: Call
 UefiCpuLib.InitializeFloatingPointUnits () to initialize X87 FPU Control Word
 for BSP.

For a platform tip with 32-bit PEI+64-bit DXE, InitializeFloatingPointUnits () should be called for BSP in the DXE phase.

Signed-off-by: Sun Rui <rui.sun@intel.com>
Reviewed-by: Fan Jeff <jeff.fan@intel.com>


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13511 6f19259b-4bc3-4df7-8a09-765794883524
---
 UefiCpuPkg/CpuDxe/CpuDxe.c   | 2 ++
 UefiCpuPkg/CpuDxe/CpuDxe.h   | 1 +
 UefiCpuPkg/CpuDxe/CpuDxe.inf | 1 +
 UefiCpuPkg/UefiCpuPkg.dsc    | 1 +
 4 files changed, 5 insertions(+)

diff --git a/UefiCpuPkg/CpuDxe/CpuDxe.c b/UefiCpuPkg/CpuDxe/CpuDxe.c
index 17513e758f..c755d8a289 100644
--- a/UefiCpuPkg/CpuDxe/CpuDxe.c
+++ b/UefiCpuPkg/CpuDxe/CpuDxe.c
@@ -1247,6 +1247,8 @@ InitializeCpu (
   EFI_STATUS  Status;
   EFI_EVENT   IdleLoopEvent;
 
+  InitializeFloatingPointUnits ();
+
   //
   // Make sure interrupts are disabled
   //
diff --git a/UefiCpuPkg/CpuDxe/CpuDxe.h b/UefiCpuPkg/CpuDxe/CpuDxe.h
index 9baccb2565..a75ec0593f 100644
--- a/UefiCpuPkg/CpuDxe/CpuDxe.h
+++ b/UefiCpuPkg/CpuDxe/CpuDxe.h
@@ -29,6 +29,7 @@
 #include <Library/DebugLib.h>
 #include <Library/MtrrLib.h>
 #include <Library/LocalApicLib.h>
+#include <Library/UefiCpuLib.h>
 #include <Guid/IdleLoopEvent.h>
 
 //
diff --git a/UefiCpuPkg/CpuDxe/CpuDxe.inf b/UefiCpuPkg/CpuDxe/CpuDxe.inf
index 3373efab16..b43506ef58 100644
--- a/UefiCpuPkg/CpuDxe/CpuDxe.inf
+++ b/UefiCpuPkg/CpuDxe/CpuDxe.inf
@@ -38,6 +38,7 @@
   UefiBootServicesTableLib
   UefiDriverEntryPoint
   LocalApicLib
+  UefiCpuLib
 
 [Sources]
   CpuDxe.c
diff --git a/UefiCpuPkg/UefiCpuPkg.dsc b/UefiCpuPkg/UefiCpuPkg.dsc
index 73dbbaf3a2..505c69e4c8 100644
--- a/UefiCpuPkg/UefiCpuPkg.dsc
+++ b/UefiCpuPkg/UefiCpuPkg.dsc
@@ -34,6 +34,7 @@
   DebugLib|MdePkg/Library/BaseDebugLibNull/BaseDebugLibNull.inf
   DebugPrintErrorLevelLib|MdePkg/Library/BaseDebugPrintErrorLevelLib/BaseDebugPrintErrorLevelLib.inf
   DevicePathLib|MdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.inf
+  UefiCpuLib|UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLib.inf
   IoLib|MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsic.inf
   MtrrLib|UefiCpuPkg/Library/MtrrLib/MtrrLib.inf
   PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
-- 
2.39.2