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MdeModulePkg/Variable: Consume Variable Flash Info 

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3479

Updates VariableRuntimeDxe, VariableSmm, and VariableStandaloneMm
to acquire variable flash information from the Variable Flash
Information library.

Note: This introduces a dependency on VariableFlashInfoLib in these
modules. Therefore, a platform building the variable modules must
specify an instance of VariableFlashInfoLib in their platform build.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
This commit is contained in:
Michael Kubacki 2022-04-05 21:34:51 -04:00 committed by mergify[bot]
parent 60b519456c
commit 4dbebc2d10
10 changed files with 56 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
MdeModulePkg/Universal/Variable/Pei/Variable.c
View File

@ -567,11 +567,13 @@ GetVariableStore (
OUT VARIABLE_STORE_INFO *StoreInfo
)
{
EFI_STATUS Status;
EFI_HOB_GUID_TYPE *GuidHob;
EFI_FIRMWARE_VOLUME_HEADER *FvHeader;
VARIABLE_STORE_HEADER *VariableStoreHeader;
EFI_PHYSICAL_ADDRESS NvStorageBase;
UINT32 NvStorageSize;
UINT64 NvStorageSize64;
FAULT_TOLERANT_WRITE_LAST_WRITE_DATA *FtwLastWriteData;
UINT32 BackUpOffset;
@ -591,11 +593,13 @@ GetVariableStore (
// Emulated non-volatile variable mode is not enabled.
//
NvStorageSize = PcdGet32 (PcdFlashNvStorageVariableSize);
NvStorageBase = (EFI_PHYSICAL_ADDRESS)(PcdGet64 (PcdFlashNvStorageVariableBase64) != 0 ?
PcdGet64 (PcdFlashNvStorageVariableBase64) :
PcdGet32 (PcdFlashNvStorageVariableBase)
);
Status = GetVariableFlashNvStorageInfo (&NvStorageBase, &NvStorageSize64);
ASSERT_EFI_ERROR (Status);
Status = SafeUint64ToUint32 (NvStorageSize64, &NvStorageSize);
// This driver currently assumes the size will be UINT32 so assert the value is safe for now.
ASSERT_EFI_ERROR (Status);
ASSERT (NvStorageBase != 0);
//

2
MdeModulePkg/Universal/Variable/Pei/Variable.h
View File

@ -20,6 +20,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include <Library/BaseMemoryLib.h>
#include <Library/PeiServicesTablePointerLib.h>
#include <Library/PeiServicesLib.h>
#include <Library/SafeIntLib.h>
#include <Library/VariableFlashInfoLib.h>
#include <Guid/VariableFormat.h>
#include <Guid/VariableIndexTable.h>

5
MdeModulePkg/Universal/Variable/Pei/VariablePei.inf
View File

@ -39,6 +39,8 @@
DebugLib
PeiServicesTablePointerLib
PeiServicesLib
SafeIntLib
VariableFlashInfoLib
[Guids]
## CONSUMES ## GUID # Variable store header
@ -59,9 +61,6 @@
gEfiPeiReadOnlyVariable2PpiGuid ## PRODUCES
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64 ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdEmuVariableNvModeEnable ## SOMETIMES_CONSUMES
[Depex]

7
MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
View File

@ -31,6 +31,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include <Library/MemoryAllocationLib.h>
#include <Library/AuthVariableLib.h>
#include <Library/VarCheckLib.h>
#include <Library/VariableFlashInfoLib.h>
#include <Library/SafeIntLib.h>
#include <Guid/GlobalVariable.h>
#include <Guid/EventGroup.h>
#include <Guid/VariableFormat.h>
@ -40,11 +42,6 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include "PrivilegePolymorphic.h"
#define NV_STORAGE_VARIABLE_BASE (EFI_PHYSICAL_ADDRESS)\
(PcdGet64 (PcdFlashNvStorageVariableBase64) != 0 ? \
PcdGet64 (PcdFlashNvStorageVariableBase64) : \
PcdGet32 (PcdFlashNvStorageVariableBase))
#define EFI_VARIABLE_ATTRIBUTES_MASK (EFI_VARIABLE_NON_VOLATILE |\
EFI_VARIABLE_BOOTSERVICE_ACCESS | \
EFI_VARIABLE_RUNTIME_ACCESS | \

16
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c
View File

@ -423,6 +423,8 @@ FtwNotificationEvent (
EFI_PHYSICAL_ADDRESS VariableStoreBase;
UINT64 VariableStoreLength;
UINTN FtwMaxBlockSize;
UINT32 NvStorageVariableSize;
UINT64 NvStorageVariableSize64;
//
// Ensure FTW protocol is installed.
@ -432,14 +434,20 @@ FtwNotificationEvent (
return;
}
Status = GetVariableFlashNvStorageInfo (&NvStorageVariableBase, &NvStorageVariableSize64);
ASSERT_EFI_ERROR (Status);
Status = SafeUint64ToUint32 (NvStorageVariableSize64, &NvStorageVariableSize);
// This driver currently assumes the size will be UINT32 so assert the value is safe for now.
ASSERT_EFI_ERROR (Status);
VariableStoreBase = NvStorageVariableBase + mNvFvHeaderCache->HeaderLength;
Status = FtwProtocol->GetMaxBlockSize (FtwProtocol, &FtwMaxBlockSize);
if (!EFI_ERROR (Status)) {
ASSERT (PcdGet32 (PcdFlashNvStorageVariableSize) <= FtwMaxBlockSize);
ASSERT (NvStorageVariableSize <= FtwMaxBlockSize);
}
NvStorageVariableBase = NV_STORAGE_VARIABLE_BASE;
VariableStoreBase = NvStorageVariableBase + mNvFvHeaderCache->HeaderLength;
//
// Let NonVolatileVariableBase point to flash variable store base directly after FTW ready.
//

14
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableNonVolatile.c
View File

@ -142,6 +142,7 @@ InitRealNonVolatileVariableStore (
EFI_PHYSICAL_ADDRESS NvStorageBase;
UINT8 *NvStorageData;
UINT32 NvStorageSize;
UINT64 NvStorageSize64;
FAULT_TOLERANT_WRITE_LAST_WRITE_DATA *FtwLastWriteData;
UINT32 BackUpOffset;
UINT32 BackUpSize;
@ -153,19 +154,24 @@ InitRealNonVolatileVariableStore (
mVariableModuleGlobal->FvbInstance = NULL;
Status = GetVariableFlashNvStorageInfo (&NvStorageBase, &NvStorageSize64);
ASSERT_EFI_ERROR (Status);
Status = SafeUint64ToUint32 (NvStorageSize64, &NvStorageSize);
// This driver currently assumes the size will be UINT32 so assert the value is safe for now.
ASSERT_EFI_ERROR (Status);
ASSERT (NvStorageBase != 0);
//
// Allocate runtime memory used for a memory copy of the FLASH region.
// Keep the memory and the FLASH in sync as updates occur.
//
NvStorageSize = PcdGet32 (PcdFlashNvStorageVariableSize);
NvStorageData = AllocateRuntimeZeroPool (NvStorageSize);
if (NvStorageData == NULL) {
return EFI_OUT_OF_RESOURCES;
}
NvStorageBase = NV_STORAGE_VARIABLE_BASE;
ASSERT (NvStorageBase != 0);
//
// Copy NV storage data to the memory buffer.
//

5
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
View File

@ -71,8 +71,10 @@
TpmMeasurementLib
AuthVariableLib
VarCheckLib
VariableFlashInfoLib
VariablePolicyLib
VariablePolicyHelperLib
SafeIntLib
[Protocols]
gEfiFirmwareVolumeBlockProtocolGuid ## CONSUMES
@ -125,9 +127,6 @@
gEfiImageSecurityDatabaseGuid
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64 ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxAuthVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVolatileVariableSize ## CONSUMES

17
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c
View File

@ -1084,6 +1084,8 @@ SmmFtwNotificationEvent (
EFI_SMM_FAULT_TOLERANT_WRITE_PROTOCOL *FtwProtocol;
EFI_PHYSICAL_ADDRESS NvStorageVariableBase;
UINTN FtwMaxBlockSize;
UINT32 NvStorageVariableSize;
UINT64 NvStorageVariableSize64;
if (mVariableModuleGlobal->FvbInstance != NULL) {
return EFI_SUCCESS;
@ -1097,14 +1099,21 @@ SmmFtwNotificationEvent (
return Status;
}
Status = GetVariableFlashNvStorageInfo (&NvStorageVariableBase, &NvStorageVariableSize64);
ASSERT_EFI_ERROR (Status);
Status = SafeUint64ToUint32 (NvStorageVariableSize64, &NvStorageVariableSize);
// This driver currently assumes the size will be UINT32 so assert the value is safe for now.
ASSERT_EFI_ERROR (Status);
ASSERT (NvStorageVariableBase != 0);
VariableStoreBase = NvStorageVariableBase + mNvFvHeaderCache->HeaderLength;
Status = FtwProtocol->GetMaxBlockSize (FtwProtocol, &FtwMaxBlockSize);
if (!EFI_ERROR (Status)) {
ASSERT (PcdGet32 (PcdFlashNvStorageVariableSize) <= FtwMaxBlockSize);
ASSERT (NvStorageVariableSize <= FtwMaxBlockSize);
}
NvStorageVariableBase = NV_STORAGE_VARIABLE_BASE;
VariableStoreBase = NvStorageVariableBase + mNvFvHeaderCache->HeaderLength;
//
// Let NonVolatileVariableBase point to flash variable store base directly after FTW ready.
//

5
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf
View File

@ -80,8 +80,10 @@
AuthVariableLib
VarCheckLib
UefiBootServicesTableLib
VariableFlashInfoLib
VariablePolicyLib
VariablePolicyHelperLib
SafeIntLib
[Protocols]
gEfiSmmFirmwareVolumeBlockProtocolGuid ## CONSUMES
@ -127,9 +129,6 @@
gEdkiiVarErrorFlagGuid
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64 ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxAuthVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVolatileVariableSize ## CONSUMES

5
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
View File

@ -73,9 +73,11 @@
HobLib
MemoryAllocationLib
MmServicesTableLib
SafeIntLib
StandaloneMmDriverEntryPoint
SynchronizationLib
VarCheckLib
VariableFlashInfoLib
VariablePolicyLib
VariablePolicyHelperLib
@ -120,9 +122,6 @@
gEdkiiVarErrorFlagGuid
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64 ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxAuthVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVolatileVariableSize ## CONSUMES