From: Jagadeesh Ujja <jagadeesh.ujja@arm.com>
To: edk2-devel@lists.01.org, liming.gao@intel.com,
chao.b.zhang@intel.com, lersek@readhat.com,
leif.lindholm@linaro.org, ard.biesheuvel@linaro.org
Subject: [RFC PATCH v2 05/11] MdeModulePkg/FaultTolerantWriteDxe: allow reusability as a MM driver
Date: Tue, 27 Nov 2018 16:56:20 +0530 [thread overview]
Message-ID: <20181127112626.7854-6-jagadeesh.ujja@arm.com> (raw)
In-Reply-To: <20181127112626.7854-1-jagadeesh.ujja@arm.com>
Adapt the FaultTolerantWriteDxe driver to be used as a MM_STANDALONE
driver to provide UEFI fault tolerant write protocol functionality
for variable reclaim operation on EFI variables stored on a NOR flash
that is only accessible to code executing in MM Standalone mode.
Change-Id: Ife29e7d6e7f5d17829abb3ce4ddf0eb94f8e7b28
Signed-off-by: Jagadeesh Ujja <jagadeesh.ujja@arm.com>
Signed-off-by: Thomas Abraham <thomas.abraham@arm.com>
---
.../FaultTolerantWriteDxe.inf | 2 +
.../FaultTolerantWriteSmm.c | 203 +++++++++++++-----
.../FaultTolerantWriteStandaloneMm.inf | 102 +++++++++
.../UpdateWorkingBlock.c | 27 +--
4 files changed, 273 insertions(+), 61 deletions(-)
create mode 100644 MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandaloneMm.inf
diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf
index dcde58d632..db45be0a98 100644
--- a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf
+++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf
@@ -41,6 +41,7 @@
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
+ StandaloneMmPkg/StandaloneMmPkg.dec
[LibraryClasses]
UefiBootServicesTableLib
@@ -69,6 +70,7 @@
[FeaturePcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdFullFtwServiceEnable ## CONSUMES
+ gStandaloneMmPkgTokenSpaceGuid.PcdStandaloneMmEnable
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase ## SOMETIMES_CONSUMES
diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c
index fabd713c74..ace39fd4d2 100644
--- a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c
+++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c
@@ -44,6 +44,7 @@
This driver need to make sure the CommBuffer is not in the SMRAM range.
Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2018, ARM Limited. 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
@@ -55,13 +56,16 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <PiSmm.h>
+#include <PiMm.h>
#include <Library/SmmServicesTableLib.h>
#include <Library/SmmMemLib.h>
+#include <Library/StandaloneMmMemLib.h>
#include <Library/BaseLib.h>
#include <Protocol/SmmSwapAddressRange.h>
#include "FaultTolerantWrite.h"
#include "FaultTolerantWriteSmmCommon.h"
#include <Protocol/SmmEndOfDxe.h>
+#include <Library/StandaloneMmServicesTableLib.h>
EFI_EVENT mFvbRegistration = NULL;
EFI_FTW_DEVICE *mFtwDevice = NULL;
@@ -92,11 +96,19 @@ FtwGetFvbByHandle (
//
// To get the SMM FVB protocol interface on the handle
//
- return gSmst->SmmHandleProtocol (
- FvBlockHandle,
- &gEfiSmmFirmwareVolumeBlockProtocolGuid,
- (VOID **) FvBlock
- );
+ if (!PcdGetBool (PcdStandaloneMmEnable)) {
+ return gSmst->SmmHandleProtocol (
+ FvBlockHandle,
+ &gEfiSmmFirmwareVolumeBlockProtocolGuid,
+ (VOID **) FvBlock
+ );
+ } else {
+ return gMmst->MmHandleProtocol (
+ FvBlockHandle,
+ &gEfiSmmFirmwareVolumeBlockProtocolGuid,
+ (VOID **) FvBlock
+ );
+ }
}
/**
@@ -119,11 +131,19 @@ FtwGetSarProtocol (
//
// Locate Smm Swap Address Range protocol
//
- Status = gSmst->SmmLocateProtocol (
- &gEfiSmmSwapAddressRangeProtocolGuid,
- NULL,
- SarProtocol
- );
+ if (!PcdGetBool (PcdStandaloneMmEnable)) {
+ Status = gSmst->SmmLocateProtocol (
+ &gEfiSmmSwapAddressRangeProtocolGuid,
+ NULL,
+ SarProtocol
+ );
+ } else {
+ Status = gMmst->MmLocateProtocol (
+ &gEfiSmmSwapAddressRangeProtocolGuid,
+ NULL,
+ SarProtocol
+ );
+ }
return Status;
}
@@ -158,13 +178,23 @@ GetFvbCountAndBuffer (
BufferSize = 0;
*NumberHandles = 0;
*Buffer = NULL;
- Status = gSmst->SmmLocateHandle (
- ByProtocol,
- &gEfiSmmFirmwareVolumeBlockProtocolGuid,
- NULL,
- &BufferSize,
- *Buffer
- );
+ if (!PcdGetBool (PcdStandaloneMmEnable)) {
+ Status = gSmst->SmmLocateHandle (
+ ByProtocol,
+ &gEfiSmmFirmwareVolumeBlockProtocolGuid,
+ NULL,
+ &BufferSize,
+ *Buffer
+ );
+ } else {
+ Status = gMmst->MmLocateHandle (
+ ByProtocol,
+ &gEfiSmmFirmwareVolumeBlockProtocolGuid,
+ NULL,
+ &BufferSize,
+ *Buffer
+ );
+ }
if (EFI_ERROR(Status) && Status != EFI_BUFFER_TOO_SMALL) {
return EFI_NOT_FOUND;
}
@@ -173,15 +203,23 @@ GetFvbCountAndBuffer (
if (*Buffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
-
- Status = gSmst->SmmLocateHandle (
- ByProtocol,
- &gEfiSmmFirmwareVolumeBlockProtocolGuid,
- NULL,
- &BufferSize,
- *Buffer
- );
-
+ if (!PcdGetBool (PcdStandaloneMmEnable)) {
+ Status = gSmst->SmmLocateHandle (
+ ByProtocol,
+ &gEfiSmmFirmwareVolumeBlockProtocolGuid,
+ NULL,
+ &BufferSize,
+ *Buffer
+ );
+ } else {
+ Status = gMmst->MmLocateHandle (
+ ByProtocol,
+ &gEfiSmmFirmwareVolumeBlockProtocolGuid,
+ NULL,
+ &BufferSize,
+ *Buffer
+ );
+ }
*NumberHandles = BufferSize / sizeof(EFI_HANDLE);
if (EFI_ERROR(Status)) {
*NumberHandles = 0;
@@ -335,10 +373,16 @@ SmmFaultTolerantWriteHandler (
return EFI_SUCCESS;
}
CommBufferPayloadSize = TempCommBufferSize - SMM_FTW_COMMUNICATE_HEADER_SIZE;
-
- if (!SmmIsBufferOutsideSmmValid ((UINTN)CommBuffer, TempCommBufferSize)) {
- DEBUG ((EFI_D_ERROR, "SmmFtwHandler: SMM communication buffer in SMRAM or overflow!\n"));
- return EFI_SUCCESS;
+ if (!PcdGetBool (PcdStandaloneMmEnable)) {
+ if (!SmmIsBufferOutsideSmmValid ((UINTN)CommBuffer, TempCommBufferSize)) {
+ DEBUG ((EFI_D_ERROR, "SmmFtwHandler: SMM communication buffer in SMRAM or overflow!\n"));
+ return EFI_SUCCESS;
+ }
+ } else {
+ if (!MmIsBufferOutsideMmValid ((UINTN)CommBuffer, TempCommBufferSize)) {
+ DEBUG ((EFI_D_ERROR, "SmmFtwHandler: SMM communication buffer in SMRAM or overflow!\n"));
+ return EFI_SUCCESS;
+ }
}
SmmFtwFunctionHeader = (SMM_FTW_COMMUNICATE_FUNCTION_HEADER *)CommBuffer;
@@ -531,11 +575,19 @@ FvbNotificationEvent (
// Just return to avoid install SMM FaultTolerantWriteProtocol again
// if SMM Fault Tolerant Write protocol had been installed.
//
- Status = gSmst->SmmLocateProtocol (
- &gEfiSmmFaultTolerantWriteProtocolGuid,
- NULL,
- (VOID **) &FtwProtocol
- );
+ if (!PcdGetBool (PcdStandaloneMmEnable)) {
+ Status = gSmst->SmmLocateProtocol (
+ &gEfiSmmFaultTolerantWriteProtocolGuid,
+ NULL,
+ (VOID **) &FtwProtocol
+ );
+ } else {
+ Status = gMmst->MmLocateProtocol (
+ &gEfiSmmFaultTolerantWriteProtocolGuid,
+ NULL,
+ (VOID **) &FtwProtocol
+ );
+ }
if (!EFI_ERROR (Status)) {
return EFI_SUCCESS;
}
@@ -551,31 +603,45 @@ FvbNotificationEvent (
//
// Install protocol interface
//
- Status = gSmst->SmmInstallProtocolInterface (
- &mFtwDevice->Handle,
- &gEfiSmmFaultTolerantWriteProtocolGuid,
- EFI_NATIVE_INTERFACE,
- &mFtwDevice->FtwInstance
- );
+ if (!PcdGetBool (PcdStandaloneMmEnable)) {
+ Status = gSmst->SmmInstallProtocolInterface (
+ &mFtwDevice->Handle,
+ &gEfiSmmFaultTolerantWriteProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &mFtwDevice->FtwInstance
+ );
+ } else {
+ Status = gMmst->MmInstallProtocolInterface (
+ &mFtwDevice->Handle,
+ &gEfiSmmFaultTolerantWriteProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &mFtwDevice->FtwInstance
+ );
+ }
ASSERT_EFI_ERROR (Status);
///
/// Register SMM FTW SMI handler
///
- Status = gSmst->SmiHandlerRegister (SmmFaultTolerantWriteHandler, &gEfiSmmFaultTolerantWriteProtocolGuid, &SmmFtwHandle);
- ASSERT_EFI_ERROR (Status);
+ if (!PcdGetBool (PcdStandaloneMmEnable)) {
+ Status = gSmst->SmiHandlerRegister (SmmFaultTolerantWriteHandler, &gEfiSmmFaultTolerantWriteProtocolGuid, &SmmFtwHandle);
+ ASSERT_EFI_ERROR (Status);
- //
- // Notify the Ftw wrapper driver SMM Ftw is ready
- //
- FtwHandle = NULL;
- Status = gBS->InstallProtocolInterface (
+ //
+ // Notify the Ftw wrapper driver SMM Ftw is ready
+ //
+ FtwHandle = NULL;
+ Status = gBS->InstallProtocolInterface (
&FtwHandle,
&gEfiSmmFaultTolerantWriteProtocolGuid,
EFI_NATIVE_INTERFACE,
NULL
);
- ASSERT_EFI_ERROR (Status);
+ ASSERT_EFI_ERROR (Status);
+ } else {
+ Status = gMmst->MmiHandlerRegister (SmmFaultTolerantWriteHandler, &gEfiSmmFaultTolerantWriteProtocolGuid, &SmmFtwHandle);
+ ASSERT_EFI_ERROR (Status);
+ }
return EFI_SUCCESS;
}
@@ -655,3 +721,42 @@ SmmFaultTolerantWriteInitialize (
return EFI_SUCCESS;
}
+
+/**
+ This function is the entry point of the Fault Tolerant Write driver.
+
+ @param[in] ImageHandle A handle for the image that is initializing this driver
+ @param[in] SystemTable A pointer to the EFI system table
+
+ @retval EFI_SUCCESS The initialization finished successfully.
+ @retval EFI_OUT_OF_RESOURCES Allocate memory error
+ @retval EFI_INVALID_PARAMETER Workspace or Spare block does not exist
+
+**/
+EFI_STATUS
+EFIAPI
+StandaloneMmFaultTolerantWriteInitialize (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_MM_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Allocate private data structure for SMM FTW protocol and do some initialization
+ //
+ Status = InitFtwDevice (&mFtwDevice);
+ if (EFI_ERROR(Status)) {
+ return Status;
+ }
+ Status = gMmst->MmRegisterProtocolNotify (
+ &gEfiSmmFirmwareVolumeBlockProtocolGuid,
+ FvbNotificationEvent,
+ &mFvbRegistration
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ FvbNotificationEvent (NULL, NULL, NULL);
+
+ return EFI_SUCCESS;
+}
diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandaloneMm.inf b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandaloneMm.inf
new file mode 100644
index 0000000000..724534b09b
--- /dev/null
+++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandaloneMm.inf
@@ -0,0 +1,102 @@
+## @file
+# Fault Tolerant Write Smm Driver.
+#
+# This driver installs SMM Fault Tolerant Write (FTW) protocol, which provides fault
+# tolerant write capability in SMM environment for block devices. Its implementation
+# depends on the full functionality SMM FVB protocol that support read, write/erase
+# flash access.
+#
+# Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2018, ARM Limited. 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
+# http://opensource.org/licenses/bsd-license.php
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+##
+
+[Defines]
+ INF_VERSION = 0x0001001A
+ BASE_NAME = FaultTolerantWriteMmStandalone
+ MODULE_UNI_FILE = SmmFaultTolerantWriteDxe.uni
+ FILE_GUID = 470CB248-E8AC-473c-BB4F-81069A1FE6FD
+ MODULE_TYPE = MM_STANDALONE
+ VERSION_STRING = 1.0
+ PI_SPECIFICATION_VERSION = 0x00010032
+ ENTRY_POINT = StandaloneMmFaultTolerantWriteInitialize
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 AARCH64
+#
+
+[Sources]
+ FtwMisc.c
+ UpdateWorkingBlock.c
+ FaultTolerantWrite.c
+ FaultTolerantWriteSmm.c
+ FaultTolerantWrite.h
+ FaultTolerantWriteSmmCommon.h
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ StandaloneMmPkg/StandaloneMmPkg.dec
+
+[LibraryClasses]
+ MemoryAllocationLib
+ BaseMemoryLib
+ DebugLib
+ PcdLib
+ ReportStatusCodeLib
+ MemLib
+ StandaloneMmDriverEntryPoint
+ BaseLib
+ MmServicesTableLib
+
+[Guids]
+ #
+ # Signature in EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER
+ #
+ ## CONSUMES ## GUID
+ ## PRODUCES ## GUID
+ gEdkiiWorkingBlockSignatureGuid
+
+[Protocols]
+ gEfiSmmSwapAddressRangeProtocolGuid | gEfiMdeModulePkgTokenSpaceGuid.PcdFullFtwServiceEnable ## SOMETIMES_CONSUMES
+ ## NOTIFY
+ ## CONSUMES
+ gEfiSmmFirmwareVolumeBlockProtocolGuid
+ ## PRODUCES
+ ## UNDEFINED # SmiHandlerRegister
+ gEfiSmmFaultTolerantWriteProtocolGuid
+ gEfiSmmEndOfDxeProtocolGuid ## CONSUMES
+
+[FeaturePcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFullFtwServiceEnable ## CONSUMES
+ gStandaloneMmPkgTokenSpaceGuid.PcdStandaloneMmEnable
+
+[Pcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase ## SOMETIMES_CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase64 ## CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize ## CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase ## SOMETIMES_CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase64 ## CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize ## CONSUMES
+
+#
+# gBS->CalculateCrc32() is consumed in EntryPoint.
+# PI spec said: When the DXE Foundation is notified that the EFI_RUNTIME_ARCH_PROTOCOL
+# has been installed, then the Boot Service CalculateCrc32() is available.
+# So add gEfiRuntimeArchProtocolGuid Depex here.
+#
+[Depex]
+ TRUE
+ #gEfiSmmFirmwareVolumeBlockProtocolGuid AND gEfiRuntimeArchProtocolGuid
+
+[UserExtensions.TianoCore."ExtraFiles"]
+ SmmFaultTolerantWriteDxeExtra.uni
diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/UpdateWorkingBlock.c b/MdeModulePkg/Universal/FaultTolerantWriteDxe/UpdateWorkingBlock.c
index 50d3421b88..85af89a5aa 100644
--- a/MdeModulePkg/Universal/FaultTolerantWriteDxe/UpdateWorkingBlock.c
+++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/UpdateWorkingBlock.c
@@ -3,6 +3,7 @@
Internal functions to operate Working Block Space.
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2018, ARM Limited. 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
@@ -57,19 +58,21 @@ InitializeLocalWorkSpaceHeader (
);
mWorkingBlockHeader.WriteQueueSize = PcdGet32 (PcdFlashNvStorageFtwWorkingSize) - sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER);
- //
- // Crc is calculated with all the fields except Crc and STATE, so leave them as FTW_ERASED_BYTE.
- //
+ if (!PcdGetBool (PcdStandaloneMmEnable)) {
+ //
+ // Crc is calculated with all the fields except Crc and STATE, so leave them as FTW_ERASED_BYTE.
+ //
- //
- // Calculate the Crc of woking block header
- //
- Status = gBS->CalculateCrc32 (
- &mWorkingBlockHeader,
- sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER),
- &mWorkingBlockHeader.Crc
- );
- ASSERT_EFI_ERROR (Status);
+ //
+ // Calculate the Crc of woking block header
+ //
+ Status = gBS->CalculateCrc32 (
+ &mWorkingBlockHeader,
+ sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER),
+ &mWorkingBlockHeader.Crc
+ );
+ ASSERT_EFI_ERROR (Status);
+ }
mWorkingBlockHeader.WorkingBlockValid = FTW_VALID_STATE;
mWorkingBlockHeader.WorkingBlockInvalid = FTW_INVALID_STATE;
--
2.19.1
next prev parent reply other threads:[~2018-11-27 11:26 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-27 11:26 [RFC PATCH v2 00/11] Extend secure variable service to be usable from Standalone MM Jagadeesh Ujja
2018-11-27 11:26 ` [RFC PATCH v2 01/11] MdeModulePkg/Variable: replace all uses of AsmLfence with MemoryFence Jagadeesh Ujja
2018-11-27 11:26 ` [RFC PATCH v2 02/11] StandaloneMmPkg: Pull in additonal libraries from staging branch Jagadeesh Ujja
2018-11-27 11:26 ` [RFC PATCH v2 03/11] MdeModulePkg/Library: Add StandaloneMmRuntimeDxe library Jagadeesh Ujja
2018-11-27 11:26 ` [RFC PATCH v2 04/11] ArmPlatformPkg/NorFlashDxe: allow reusability as a MM driver Jagadeesh Ujja
2018-11-27 11:52 ` Leif Lindholm
2018-11-27 11:26 ` Jagadeesh Ujja [this message]
2018-11-27 11:26 ` [RFC PATCH v2 06/11] MdeModulePkg/Variable/RuntimeDxe: adapt for usability with MM Standalone Jagadeesh Ujja
2018-11-27 11:26 ` [RFC PATCH v2 07/11] MdeModulePkg/Variable/RuntimeDxe: adapt as a MM Standalone driver Jagadeesh Ujja
2018-11-27 11:26 ` [RFC PATCH v2 08/11] SecurityPkg/AuthVariableLib: allow MM_STANDALONE drivers to use this library Jagadeesh Ujja
2018-11-27 11:26 ` [RFC PATCH v2 09/11] MdeModulePkg/VarCheckLib: " Jagadeesh Ujja
2018-11-27 11:26 ` [RFC PATCH v2 10/11] CryptoPkg/BaseCryptLib: " Jagadeesh Ujja
2018-11-27 11:26 ` [RFC PATCH v2 11/11] CryptoPkg/BaseCryptLib: Hack to get time in MM Standalone mode Jagadeesh Ujja
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