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MdeModulePkg: Add the alignment check for FTW spare area address and length, and add the check for PcdFlashNvStorageVariableSize <= PcdFlashNvStorageFtwSpareSize.

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Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14463 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Star Zeng 2013-07-11 08:15:47 +00:00 committed by lzeng14
parent 0dda774c86
commit 2c4b18e095
7 changed files with 35 additions and 6 deletions
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6
MdeModulePkg/MdeModulePkg.dec
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@ -548,7 +548,7 @@
## The size of volatile buffer. This buffer is used to store VOLATILE attribute variable.
gEfiMdeModulePkgTokenSpaceGuid.PcdVariableStoreSize|0x10000|UINT32|0x30000005
## Size of the FTW spare block range. Note that this value should larger than PcdFlashNvStorageVariableSize
## Size of the FTW spare block range. Note that this value should larger than PcdFlashNvStorageVariableSize and block size aligned.
# The root cause is that variable driver will use FTW protocol to reclaim variable region.
# If the length of variable region is larger than FTW spare size, it means the whole variable region can not
# be reflushed through the manner of fault tolerant write.
@ -679,7 +679,7 @@
## Base address of the NV variable range in flash device
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0|UINT32|0x30000001
## Base address of the FTW spare block range in flash device.
## Base address of the FTW spare block range in flash device. Note that this value should be block size aligned.
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0|UINT32|0x30000013
## Base address of the FTW working block range in flash device.
@ -688,7 +688,7 @@
## 64-bit Base address of the NV variable range in flash device
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64|0x0|UINT64|0x80000001
## 64-bit Base address of the FTW spare block range in flash device.
## 64-bit Base address of the FTW spare block range in flash device. Note that this value should be block size aligned.
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase64|0x0|UINT64|0x80000013
## 64-bit Base address of the FTW working block range in flash device.

1
MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWrite.h
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@ -32,6 +32,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/ReportStatusCodeLib.h>
//
// Flash erase polarity is 1

1
MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf
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@ -47,6 +47,7 @@
DebugLib
UefiLib
PcdLib
ReportStatusCodeLib
[Guids]
gEdkiiWorkingBlockSignatureGuid ## CONSUMES ## FV Signature of Working Space Header

1
MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.inf
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@ -50,6 +50,7 @@
DebugLib
UefiLib
PcdLib
ReportStatusCodeLib
[Guids]
gEdkiiWorkingBlockSignatureGuid ## CONSUMES ## FV Signature of Working Space Header

14
MdeModulePkg/Universal/FaultTolerantWriteDxe/FtwMisc.c
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@ -1111,6 +1111,20 @@ FindFvbForFtw (
ASSERT (FALSE);
return EFI_ABORTED;
}
//
// Check the alignment of spare area address and length, they should be block size aligned
//
if (((FtwDevice->SpareAreaAddress & (FtwDevice->BlockSize - 1)) != 0) ||
((FtwDevice->SpareAreaLength & (FtwDevice->BlockSize - 1)) != 0)) {
DEBUG ((EFI_D_ERROR, "Ftw: Spare area address or length is not block size aligned\n"));
FreePool (HandleBuffer);
//
// Report Status Code EFI_SW_EC_ABORTED.
//
REPORT_STATUS_CODE ( (EFI_ERROR_CODE | EFI_ERROR_UNRECOVERED), (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_EC_ABORTED));
ASSERT (FALSE);
CpuDeadLoop ();
}
break;
}
}

6
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c
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@ -335,6 +335,7 @@ FtwNotificationEvent (
UINT64 Length;
EFI_PHYSICAL_ADDRESS VariableStoreBase;
UINT64 VariableStoreLength;
UINTN FtwMaxBlockSize;
//
// Ensure FTW protocol is installed.
@ -344,6 +345,11 @@ FtwNotificationEvent (
return ;
}
Status = FtwProtocol->GetMaxBlockSize (FtwProtocol, &FtwMaxBlockSize);
if (!EFI_ERROR (Status)) {
ASSERT (PcdGet32 (PcdFlashNvStorageVariableSize) <= FtwMaxBlockSize);
}
//
// Find the proper FVB protocol for variable.
//

6
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c
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@ -792,6 +792,7 @@ SmmFtwNotificationEvent (
EFI_SMM_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbProtocol;
EFI_SMM_FAULT_TOLERANT_WRITE_PROTOCOL *FtwProtocol;
EFI_PHYSICAL_ADDRESS NvStorageVariableBase;
UINTN FtwMaxBlockSize;
if (mVariableModuleGlobal->FvbInstance != NULL) {
return EFI_SUCCESS;
@ -805,6 +806,11 @@ SmmFtwNotificationEvent (
return Status;
}
Status = FtwProtocol->GetMaxBlockSize (FtwProtocol, &FtwMaxBlockSize);
if (!EFI_ERROR (Status)) {
ASSERT (PcdGet32 (PcdFlashNvStorageVariableSize) <= FtwMaxBlockSize);
}
//
// Find the proper FVB protocol for variable.
//