diff options
| author | li-elvin <li-elvin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-05-23 07:26:17 +0000 |
|---|---|---|
| committer | li-elvin <li-elvin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-05-23 07:26:17 +0000 |
| commit | 74dee93181ad4914e9a708494e2056f1b3c4776f (patch) | |
| tree | b2b927cdc321e70771d508a1a1cb49ea686fdef4 /IntelFrameworkModulePkg/Csm/LegacyBiosDxe | |
| parent | bce3e2ab3c8b310d1561a42a243be9ea7ac71500 (diff) | |
| download | edk2-platforms-74dee93181ad4914e9a708494e2056f1b3c4776f.tar.xz | |
Update the way to allocate high PMM, firstly try to allocate high PMM below 16MB, if it fails, allocate high PMM below 4GB.
Signed-off-by: li-elvin <elvin.li@intel.com>
Reviewed-by: jyao1 <jiewen.yao@intel.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13352 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'IntelFrameworkModulePkg/Csm/LegacyBiosDxe')
| -rw-r--r-- | IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBios.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBios.c b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBios.c index 194fee647b..c90231af07 100644 --- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBios.c +++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBios.c @@ -1,6 +1,6 @@ /** @file
-Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions
@@ -922,21 +922,32 @@ LegacyBiosInstall ( EfiToLegacy16InitTable->LowPmmMemory = (UINT32) MemoryAddressUnder1MB;
EfiToLegacy16InitTable->LowPmmMemorySizeInBytes = MemorySize;
+ MemorySize = PcdGet32 (PcdHighPmmMemorySize);
+ ASSERT ((MemorySize & 0xFFF) == 0);
//
// Allocate high PMM Memory under 16 MB
- //
- MemorySize = PcdGet32 (PcdHighPmmMemorySize);
- ASSERT ((MemorySize & 0xFFF) == 0);
+ //
Status = AllocateLegacyMemory (
AllocateMaxAddress,
0x1000000,
EFI_SIZE_TO_PAGES (MemorySize),
&MemoryAddress
);
+ if (EFI_ERROR (Status)) {
+ //
+ // If it fails, allocate high PMM Memory under 4GB
+ //
+ Status = AllocateLegacyMemory (
+ AllocateMaxAddress,
+ 0xFFFFFFFF,
+ EFI_SIZE_TO_PAGES (MemorySize),
+ &MemoryAddress
+ );
+ }
if (!EFI_ERROR (Status)) {
EfiToLegacy16InitTable->HiPmmMemory = (UINT32) (EFI_PHYSICAL_ADDRESS) (UINTN) MemoryAddress;
EfiToLegacy16InitTable->HiPmmMemorySizeInBytes = MemorySize;
- }
+ }
//
// ShutdownAPs();
|