[PATCH 2/2] MdeModulePkg/Core: remove SMM check for Heap Guard feature detection

[Jian J Wang <jian.j.wang@intel.com>]

CpuDxe driver is updated to be able to access DXE page table in SMM mode,
which means Heap Guard can get correct memory paging attributes in what
ever modes. It's not necessary to exclude SMM from detecting Heap Guard
feature support.

Change-Id: I5310e6e49a258ac7a9240e40c8c99cdb692c1e02
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
---
 MdeModulePkg/Core/Dxe/Mem/HeapGuard.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c b/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c
index 9d765c98f6..447c56bb11 100644
--- a/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c
+++ b/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c
@@ -667,21 +667,11 @@ IsMemoryTypeToGuard (
 {
   UINT64 TestBit;
   UINT64 ConfigBit;
-  BOOLEAN     InSmm;
 
   if (AllocateType == AllocateAddress) {
     return FALSE;
   }
 
-  InSmm = FALSE;
-  if (gSmmBase2 != NULL) {
-    gSmmBase2->InSmm (gSmmBase2, &InSmm);
-  }
-
-  if (InSmm) {
-    return FALSE;
-  }
-
   if ((PcdGet8 (PcdHeapGuardPropertyMask) & PageOrPool) == 0) {
     return FALSE;
   }
-- 
2.16.2.windows.1