From 97f1061e8b3fa638a445ee6ea68d4cf0a342f91d Mon Sep 17 00:00:00 2001
From: Jeff Fan <jeff.fan@intel.com>
Date: Tue, 28 Mar 2017 13:51:52 +0800
Subject: UefiCpuPkg/PiSmmCpuDxeSmm: Add IsInSmmRanges() to check SMM range

Internal function IsInSmmRanges() is added t check SMM range by saved SMM ranges
beside by mCpuHotPlugData.SmrrBase/mCpuHotPlugData.SmrrSiz.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
---
 UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c | 36 +++++++++++++++++++++++++++++-----
 1 file changed, 31 insertions(+), 5 deletions(-)

diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c
index 1b84e2c5f3..7125aec8a9 100644
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c
@@ -1,7 +1,7 @@
 /** @file
 Enable SMM profile.
 
-Copyright (c) 2012 - 2016, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2012 - 2017, Intel Corporation. All rights reserved.<BR>
 Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
 
 This program and the accompanying materials
@@ -246,6 +246,33 @@ DebugExceptionHandler (
   ClearTrapFlag (SystemContext);
 }
 
+/**
+  Check if the input address is in SMM ranges.
+
+  @param[in]  Address       The input address.
+
+  @retval TRUE     The input address is in SMM.
+  @retval FALSE    The input address is not in SMM.
+**/
+BOOLEAN
+IsInSmmRanges (
+  IN EFI_PHYSICAL_ADDRESS   Address
+  )
+{
+  UINTN  Index;
+
+  if ((Address < mCpuHotPlugData.SmrrBase) || (Address >= mCpuHotPlugData.SmrrBase + mCpuHotPlugData.SmrrSize)) {
+    return TRUE;
+  }
+  for (Index = 0; Index < mSmmCpuSmramRangeCount; Index++) {
+    if (Address >= mSmmCpuSmramRanges[Index].CpuStart &&
+        Address < mSmmCpuSmramRanges[Index].CpuStart + mSmmCpuSmramRanges[Index].PhysicalSize) {
+      return TRUE;
+    }
+  }
+  return FALSE;
+}
+
 /**
   Check if the memory address will be mapped by 4KB-page.
 
@@ -261,7 +288,6 @@ IsAddressValid (
 {
   UINTN  Index;
 
-  *Nx = FALSE;
   if (FeaturePcdGet (PcdCpuSmmProfileEnable)) {
     //
     // Check configuration
@@ -276,9 +302,9 @@ IsAddressValid (
     return FALSE;
 
   } else {
-    if ((Address < mCpuHotPlugData.SmrrBase) ||
-        (Address >= mCpuHotPlugData.SmrrBase + mCpuHotPlugData.SmrrSize)) {
-      *Nx = TRUE;
+    *Nx = TRUE;
+    if (IsInSmmRanges (Address)) {
+      *Nx = FALSE;
     }
     return TRUE;
   }
-- 
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