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

@@ -1247,6 +1247,8 @@ InitializeCpu (
   EFI_STATUS  Status;
   EFI_EVENT   IdleLoopEvent;
 
+  InitializeFloatingPointUnits ();
+
   //
   // Make sure interrupts are disabled
   //

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>
 
 //

UefiCpuPkg/CpuDxe/CpuDxe.inf

@@ -38,6 +38,7 @@
   UefiBootServicesTableLib
   UefiDriverEntryPoint
   LocalApicLib
+  UefiCpuLib
 
 [Sources]
   CpuDxe.c