diff options
| author | rsun3 <rsun3@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-04-08 05:29:22 +0000 |
|---|---|---|
| committer | rsun3 <rsun3@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-04-08 05:29:22 +0000 |
| commit | 2c0f06f0b80eebec5ec4a19d6d4440ba17bbcb0d (patch) | |
| tree | 002238a12b3644e047ed4c861c243bdddac4790d /MdeModulePkg/Core/PiSmmCore/Pool.c | |
| parent | e0c2cc6f8975adde2c8605ae7fd76237bbcc7539 (diff) | |
| download | edk2-platforms-2c0f06f0b80eebec5ec4a19d6d4440ba17bbcb0d.tar.xz | |
Add more checks to skip allocated SMRAM regions when searching for a largest free SMRAM region.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11514 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Core/PiSmmCore/Pool.c')
| -rw-r--r-- | MdeModulePkg/Core/PiSmmCore/Pool.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/MdeModulePkg/Core/PiSmmCore/Pool.c b/MdeModulePkg/Core/PiSmmCore/Pool.c index ea28484d68..beb5cd965e 100644 --- a/MdeModulePkg/Core/PiSmmCore/Pool.c +++ b/MdeModulePkg/Core/PiSmmCore/Pool.c @@ -1,7 +1,7 @@ /** @file
SMM Memory pool management functions.
- Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this
distribution. The full text of the license may be found at
@@ -86,6 +86,13 @@ SmmInitializeMemoryServices ( // Find the largest SMRAM range between 1MB and 4GB that is at least 256KB - 4K in size
//
for (Index = 0, MaxSize = SIZE_256KB - EFI_PAGE_SIZE; Index < SmramRangeCount; Index++) {
+ //
+ // Skip any SMRAM region that is already allocated, needs testing, or needs ECC initialization
+ //
+ if ((SmramRanges[Index].RegionState & (EFI_ALLOCATED | EFI_NEEDS_TESTING | EFI_NEEDS_ECC_INITIALIZATION)) != 0) {
+ continue;
+ }
+
if (SmramRanges[Index].CpuStart >= BASE_1MB) {
if ((SmramRanges[Index].CpuStart + SmramRanges[Index].PhysicalSize) <= BASE_4GB) {
if (SmramRanges[Index].PhysicalSize >= MaxSize) {
|