From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by mx.groups.io with SMTP id smtpd.web11.3781.1589283253207481555 for ; Tue, 12 May 2020 04:34:13 -0700 Authentication-Results: mx.groups.io; dkim=missing; spf=pass (domain: intel.com, ip: 192.55.52.120, mailfrom: wei6.xu@intel.com) IronPort-SDR: QOtg6/92DMZTMy4pKlpY2Nl1lIybTDxbeIwBACZS44BN9DhUU9OkT2vP+SvKtx3y16ZBkPERnB tP4uBUroNdtg== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 May 2020 04:34:11 -0700 IronPort-SDR: pCJdk1zFUqnV1tbtSGjUj2PLhOHWLrbT0DaixMFz8kEw4jZ0453935bV7gwQDwY2jCZB9boPbi xTqlr1mj1gyA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,383,1583222400"; d="scan'208";a="265474206" Received: from shwdeopenpsi174.ccr.corp.intel.com ([10.239.157.39]) by orsmga006.jf.intel.com with ESMTP; 12 May 2020 04:34:07 -0700 From: "Xu, Wei6" To: devel@edk2.groups.io Cc: Michael D Kinney , Liming Gao , Sean Brogan Subject: [edk2-devel] [PATCH V2 3/5] FmpDevicePkg: Add FmpDependencyCheck library class and instances Date: Tue, 12 May 2020 19:33:49 +0800 Message-Id: <20200512113351.8224-4-wei6.xu@intel.com> X-Mailer: git-send-email 2.16.2.windows.1 In-Reply-To: <20200512113351.8224-1-wei6.xu@intel.com> References: <20200512113351.8224-1-wei6.xu@intel.com> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2696 * This library class provides platform specific services to support dependency check during updating firmware image. Platform can perform dependency check in platform specific manner by implementing its own FmpDependencyCheckLib. * Add FmpDependencyCheck instance to provide a sample of dependency check. In this instance, dependency check has two steps: 1) Check the dependency from capsule image. 2) Check the dependency from other FMP instances. * Add NULL instance as an option to skip the dependency check. Cc: Michael D Kinney Cc: Liming Gao Cc: Sean Brogan Signed-off-by: Wei6 Xu --- FmpDevicePkg/FmpDevicePkg.dec | 4 + FmpDevicePkg/FmpDevicePkg.dsc | 3 + .../Include/Library/FmpDependencyCheckLib.h | 38 +++ .../FmpDependencyCheckLib/FmpDependencyCheckLib.c | 327 +++++++++++++++++++++ .../FmpDependencyCheckLib.inf | 43 +++ .../FmpDependencyCheckLib.uni | 13 + .../FmpDependencyCheckLibNull.c | 34 +++ .../FmpDependencyCheckLibNull.inf | 30 ++ .../FmpDependencyCheckLibNull.uni | 13 + 9 files changed, 505 insertions(+) create mode 100644 FmpDevicePkg/Include/Library/FmpDependencyCheckLib.h create mode 100644 FmpDevicePkg/Library/FmpDependencyCheckLib/FmpDependencyCheckLib.c create mode 100644 FmpDevicePkg/Library/FmpDependencyCheckLib/FmpDependencyCheckLib.inf create mode 100644 FmpDevicePkg/Library/FmpDependencyCheckLib/FmpDependencyCheckLib.uni create mode 100644 FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.c create mode 100644 FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.inf create mode 100644 FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.uni diff --git a/FmpDevicePkg/FmpDevicePkg.dec b/FmpDevicePkg/FmpDevicePkg.dec index 4947008346..871d5ce890 100644 --- a/FmpDevicePkg/FmpDevicePkg.dec +++ b/FmpDevicePkg/FmpDevicePkg.dec @@ -37,10 +37,14 @@ ## @libraryclass Provides generic services to support capsule dependency # expression evaluation. FmpDependencyLib|Include/Library/FmpDependencyLib.h + ## @libraryclass Provides platform specific services to support dependency + # check during update of firmware image. + FmpDependencyCheckLib|Include/Library/FmpDependencyCheckLib.h + [LibraryClasses.Common.Private] ## @libraryclass Provides services to retrieve values from a capsule's FMP # Payload Header. The structure is not included in the # library class. Instead, services are provided to retrieve # information from the FMP Payload Header. If information is diff --git a/FmpDevicePkg/FmpDevicePkg.dsc b/FmpDevicePkg/FmpDevicePkg.dsc index 49c6ff3a30..7e80806171 100644 --- a/FmpDevicePkg/FmpDevicePkg.dsc +++ b/FmpDevicePkg/FmpDevicePkg.dsc @@ -61,10 +61,11 @@ FmpAuthenticationLib|SecurityPkg/Library/FmpAuthenticationLibPkcs7/FmpAuthenticationLibPkcs7.inf CapsuleUpdatePolicyLib|FmpDevicePkg/Library/CapsuleUpdatePolicyLibNull/CapsuleUpdatePolicyLibNull.inf FmpPayloadHeaderLib|FmpDevicePkg/Library/FmpPayloadHeaderLibV1/FmpPayloadHeaderLibV1.inf FmpDeviceLib|FmpDevicePkg/Library/FmpDeviceLibNull/FmpDeviceLibNull.inf FmpDependencyLib|FmpDevicePkg/Library/FmpDependencyLib/FmpDependencyLib.inf + FmpDependencyCheckLib|FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.inf TimerLib|MdePkg/Library/BaseTimerLibNullTemplate/BaseTimerLibNullTemplate.inf [LibraryClasses.ARM, LibraryClasses.AARCH64] # # It is not possible to prevent the ARM compiler for generic intrinsic functions. @@ -90,10 +91,12 @@ FmpDevicePkg/Library/CapsuleUpdatePolicyLibNull/CapsuleUpdatePolicyLibNull.inf FmpDevicePkg/Library/CapsuleUpdatePolicyLibOnProtocol/CapsuleUpdatePolicyLibOnProtocol.inf FmpDevicePkg/Library/FmpPayloadHeaderLibV1/FmpPayloadHeaderLibV1.inf FmpDevicePkg/Library/FmpDeviceLibNull/FmpDeviceLibNull.inf FmpDevicePkg/Library/FmpDependencyLib/FmpDependencyLib.inf + FmpDevicePkg/Library/FmpDependencyCheckLib/FmpDependencyCheckLib.inf + FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.inf FmpDevicePkg/FmpDxe/FmpDxeLib.inf # # Modules # diff --git a/FmpDevicePkg/Include/Library/FmpDependencyCheckLib.h b/FmpDevicePkg/Include/Library/FmpDependencyCheckLib.h new file mode 100644 index 0000000000..a3d6f8729c --- /dev/null +++ b/FmpDevicePkg/Include/Library/FmpDependencyCheckLib.h @@ -0,0 +1,38 @@ +/** @file + Fmp Capsule Dependency check functions for Firmware Management Protocol based + firmware updates. + + Copyright (c) 2020, Intel Corporation. All rights reserved.
+ + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#ifndef __FMP_DEPENDENCY_CHECK_LIB__ +#define __FMP_DEPENDENCY_CHECK_LIB__ + +#include +#include + +/** + Check dependency for firmware update. + + @param[in] ImageTypeId Image Type Id. + @param[in] Version New version. + @param[in] Dependencies Fmp dependency. + @param[in] DependenciesSize Size, in bytes, of the Fmp dependency. + + @retval TRUE Dependencies are satisfied. + @retval FALSE Dependencies are unsatisfied or dependency check fails. + +**/ +BOOLEAN +EFIAPI +CheckFmpDependency ( + IN CONST EFI_GUID ImageTypeId, + IN CONST UINT32 Version, + IN CONST EFI_FIRMWARE_IMAGE_DEP *Dependencies, OPTIONAL + IN CONST UINT32 DependenciesSize OPTIONAL + ); + +#endif diff --git a/FmpDevicePkg/Library/FmpDependencyCheckLib/FmpDependencyCheckLib.c b/FmpDevicePkg/Library/FmpDependencyCheckLib/FmpDependencyCheckLib.c new file mode 100644 index 0000000000..bb4d994b9d --- /dev/null +++ b/FmpDevicePkg/Library/FmpDependencyCheckLib/FmpDependencyCheckLib.c @@ -0,0 +1,327 @@ +/** @file + Provides FMP capsule dependency check services when updating the firmware + image of a FMP device. + + Copyright (c) 2020, Intel Corporation. All rights reserved.
+ + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define FMP_DEPENDENCY_VARIABLE_NAME L"FmpDepex" + +/** + Check if there is dependency in EFI_FIRMWARE_IMAGE_DESCRIPTOR. + + @param[in] FmpImageInfoBuf Pointer to EFI Firmware Image Descriptor. + @param[in] DescriptorVer Version of the descriptor. + @param[in] DescriptorSize Size of the Descriptor. + + @retval TRUE There is dependency in descriptor. + @retval FALSE There is no dependency in descriptor. + +**/ +BOOLEAN +DoDependencyExist ( + IN EFI_FIRMWARE_IMAGE_DESCRIPTOR *FmpImageInfoBuf, + IN UINT32 DescriptorVer, + IN UINTN DescriptorSize + ) +{ + // + // Descriptor version must be greater than or equal to 4. + // + if (DescriptorVer < 4) { + return FALSE; + } + + // + // Dependency must be enabled. + // + if ((FmpImageInfoBuf->AttributesSetting & IMAGE_ATTRIBUTE_DEPENDENCY) == 0) { + return FALSE; + } + + // + // Descriptor size must be large enough to reference the 'Dependencies' field. + // + if (DescriptorSize < OFFSET_OF(EFI_FIRMWARE_IMAGE_DESCRIPTOR, Dependencies)) { + return FALSE; + } + + // + // Dependencies must not be NULL. + // + if (FmpImageInfoBuf->Dependencies == NULL) { + return FALSE; + } + + return TRUE; +} + +/** + Get the size of dependencies. Assume the dependencies is validated before + calling this function. + + @param[in] Dependencies Pointer to the EFI_FIRMWARE_IMAGE_DEP. + + @retval The size of dependencies. + +**/ +UINTN +GetDependencySize ( + IN CONST EFI_FIRMWARE_IMAGE_DEP *Dependencies + ) +{ + UINTN Index; + + if (Dependencies == NULL) { + return 0; + } + + Index = 0; + while (Dependencies->Dependencies[Index] != EFI_FMP_DEP_END) { + Index ++; + } + + return Index + 1; +} + + +/** + Check dependency for firmware update. + + @param[in] ImageTypeId Image Type Id. + @param[in] Version New version. + @param[in] Dependencies Fmp dependency. + @param[in] DependenciesSize Size, in bytes, of the Fmp dependency. + + @retval TRUE Dependencies are satisfied. + @retval FALSE Dependencies are unsatisfied or dependency check fails. + +**/ +BOOLEAN +EFIAPI +CheckFmpDependency ( + IN CONST EFI_GUID ImageTypeId, + IN CONST UINT32 Version, + IN CONST EFI_FIRMWARE_IMAGE_DEP *Dependencies, OPTIONAL + IN CONST UINT32 DependenciesSize OPTIONAL + ) +{ + EFI_STATUS Status; + EFI_HANDLE *HandleBuffer; + UINTN Index; + EFI_FIRMWARE_MANAGEMENT_PROTOCOL *Fmp; + UINTN ImageInfoSize; + UINT32 *DescriptorVer; + UINT8 FmpImageInfoCount; + UINTN *DescriptorSize; + UINT32 PackageVersion; + CHAR16 *PackageVersionName; + UINTN DepexSize; + UINTN NumberOfFmpInstance; + EFI_FIRMWARE_IMAGE_DESCRIPTOR **FmpImageInfoBuf; + FMP_DEPEX_CHECK_VERSION_DATA *FmpVersions; + UINTN FmpVersionsCount; + BOOLEAN IsSatisfied; + + FmpImageInfoBuf = NULL; + DescriptorVer = NULL; + DescriptorSize = NULL; + NumberOfFmpInstance = 0; + FmpVersions = NULL; + FmpVersionsCount = 0; + IsSatisfied = TRUE; + PackageVersionName = NULL; + + // + // Get ImageDescriptors of all FMP instances, and archive them for dependency evaluation. + // + Status = gBS->LocateHandleBuffer ( + ByProtocol, + &gEfiFirmwareManagementProtocolGuid, + NULL, + &NumberOfFmpInstance, + &HandleBuffer + ); + if (EFI_ERROR (Status)) { + DEBUG ((DEBUG_ERROR, "CheckFmpDependency: Get Firmware Management Protocol failed. (%r)", Status)); + goto cleanup; + } + + FmpImageInfoBuf = AllocateZeroPool (sizeof(EFI_FIRMWARE_IMAGE_DESCRIPTOR *) * NumberOfFmpInstance); + if (FmpImageInfoBuf == NULL) { + IsSatisfied = FALSE; + goto cleanup; + } + + DescriptorVer = AllocateZeroPool (sizeof(UINT32) * NumberOfFmpInstance); + if (DescriptorVer == NULL ) { + IsSatisfied = FALSE; + goto cleanup; + } + + DescriptorSize = AllocateZeroPool (sizeof(UINTN) * NumberOfFmpInstance); + if (DescriptorSize == NULL ) { + IsSatisfied = FALSE; + goto cleanup; + } + + FmpVersions = AllocateZeroPool (sizeof(FMP_DEPEX_CHECK_VERSION_DATA) * NumberOfFmpInstance); + if (FmpVersions == NULL) { + IsSatisfied = FALSE; + goto cleanup; + } + + for (Index = 0; Index < NumberOfFmpInstance; Index ++) { + Status = gBS->HandleProtocol ( + HandleBuffer[Index], + &gEfiFirmwareManagementProtocolGuid, + (VOID **) &Fmp + ); + if (EFI_ERROR(Status)) { + continue; + } + + ImageInfoSize = 0; + Status = Fmp->GetImageInfo ( + Fmp, + &ImageInfoSize, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL + ); + if (Status != EFI_BUFFER_TOO_SMALL) { + continue; + } + + FmpImageInfoBuf[Index] = AllocateZeroPool (ImageInfoSize); + if (FmpImageInfoBuf[Index] == NULL) { + continue; + } + + Status = Fmp->GetImageInfo ( + Fmp, + &ImageInfoSize, // ImageInfoSize + FmpImageInfoBuf[Index], // ImageInfo + &DescriptorVer[Index], // DescriptorVersion + &FmpImageInfoCount, // DescriptorCount + &DescriptorSize[Index], // DescriptorSize + &PackageVersion, // PackageVersion + &PackageVersionName // PackageVersionName + ); + if (EFI_ERROR(Status)) { + FreePool (FmpImageInfoBuf[Index]); + FmpImageInfoBuf[Index] = NULL; + continue; + } + + if (PackageVersionName != NULL) { + FreePool (PackageVersionName); + PackageVersionName = NULL; + } + + CopyGuid (&FmpVersions[FmpVersionsCount].ImageTypeId, &FmpImageInfoBuf[Index]->ImageTypeId); + FmpVersions[FmpVersionsCount].Version = FmpImageInfoBuf[Index]->Version; + FmpVersionsCount ++; + } + + // + // Step 1 - Evaluate firmware image's depex, against the version of other Fmp instances. + // + if (Dependencies != NULL) { + IsSatisfied = EvaluateDependency (Dependencies, DependenciesSize, FmpVersions, FmpVersionsCount); + } + + if (!IsSatisfied) { + DEBUG ((DEBUG_ERROR, "CheckFmpDependency: %g\'s dependency is not satisfied!\n", ImageTypeId)); + goto cleanup; + } + + // + // Step 2 - Evaluate the depex of all other Fmp instances, against the new version in + // the firmware image. + // + + // + // Update the new version to FmpVersions. + // + for (Index = 0; Index < FmpVersionsCount; Index ++) { + if (CompareGuid (&ImageTypeId, &FmpVersions[Index].ImageTypeId)) { + FmpVersions[Index].Version = Version; + break; + } + } + + // + // Evaluate the Dependencies one by one. + // + for (Index = 0; Index < NumberOfFmpInstance; Index ++) { + if (FmpImageInfoBuf[Index] != NULL) { + // + // Skip the Fmp instance to be "SetImage". + // + if (CompareGuid (&ImageTypeId, &FmpImageInfoBuf[Index]->ImageTypeId)) { + continue; + } + // + // Check if dependency exists in the EFI_FIRMWARE_IMAGE_DESCRIPTOR. + // + if (DoDependencyExist (FmpImageInfoBuf[Index], DescriptorVer[Index], DescriptorSize[Index])) { + // + // Get the size of dependency. + // Assume that the dependencies in EFI_FIRMWARE_IMAGE_DESCRIPTOR is validated when PopulateDescriptor(). + // + DepexSize = GetDependencySize (FmpImageInfoBuf[Index]->Dependencies); + if (DepexSize > 0) { + IsSatisfied = EvaluateDependency (FmpImageInfoBuf[Index]->Dependencies, DepexSize, FmpVersions, FmpVersionsCount); + if (!IsSatisfied) { + DEBUG ((DEBUG_ERROR, "CheckFmpDependency: %g\'s dependency is not satisfied!\n", FmpImageInfoBuf[Index]->ImageTypeId)); + break; + } + } + } + } + } + +cleanup: + if (FmpImageInfoBuf != NULL) { + for (Index = 0; Index < NumberOfFmpInstance; Index ++) { + if (FmpImageInfoBuf[Index] != NULL) { + FreePool (FmpImageInfoBuf[Index]); + } + } + FreePool (FmpImageInfoBuf); + } + + if (DescriptorVer != NULL) { + FreePool (DescriptorVer); + } + + if (DescriptorSize != NULL) { + FreePool (DescriptorSize); + } + + if (FmpVersions != NULL) { + FreePool (FmpVersions); + } + + return IsSatisfied; +} diff --git a/FmpDevicePkg/Library/FmpDependencyCheckLib/FmpDependencyCheckLib.inf b/FmpDevicePkg/Library/FmpDependencyCheckLib/FmpDependencyCheckLib.inf new file mode 100644 index 0000000000..2050cc6490 --- /dev/null +++ b/FmpDevicePkg/Library/FmpDependencyCheckLib/FmpDependencyCheckLib.inf @@ -0,0 +1,43 @@ +## @file +# Provides FMP capsule dependency check services when updating the firmware +# image of a FMP device. +# +# Copyright (c) 2020, Intel Corporation. All rights reserved.
+# +# SPDX-License-Identifier: BSD-2-Clause-Patent +## + +[Defines] + INF_VERSION = 0x00010005 + BASE_NAME = FmpDependencyCheckLib + MODULE_UNI_FILE = FmpDependencyCheckLib.uni + FILE_GUID = 8296D425-3095-4CFE-88D8-B0A44DB174A8 + MODULE_TYPE = DXE_DRIVER + VERSION_STRING = 1.0 + LIBRARY_CLASS = FmpDependencyCheckLib|DXE_DRIVER UEFI_DRIVER UEFI_APPLICATION + +# +# The following information is for reference only and not required by the build tools. +# +# VALID_ARCHITECTURES = IA32 X64 ARM AARCH64 +# + +[Sources] + FmpDependencyCheckLib.c + +[Packages] + MdePkg/MdePkg.dec + MdeModulePkg/MdeModulePkg.dec + FmpDevicePkg/FmpDevicePkg.dec + +[LibraryClasses] + BaseLib + BaseMemoryLib + DebugLib + FmpDependencyLib + MemoryAllocationLib + UefiLib + UefiBootServicesTableLib + +[Protocols] + gEfiFirmwareManagementProtocolGuid ## CONSUMES diff --git a/FmpDevicePkg/Library/FmpDependencyCheckLib/FmpDependencyCheckLib.uni b/FmpDevicePkg/Library/FmpDependencyCheckLib/FmpDependencyCheckLib.uni new file mode 100644 index 0000000000..c6369e2277 --- /dev/null +++ b/FmpDevicePkg/Library/FmpDependencyCheckLib/FmpDependencyCheckLib.uni @@ -0,0 +1,13 @@ +// /** @file +// Provides FMP capsule dependency check services when updating the firmware +// image of a FMP device. +// +// Copyright (c) 2020, Intel Corporation. All rights reserved.
+// +// SPDX-License-Identifier: BSD-2-Clause-Patent +// +// **/ + +#string STR_MODULE_ABSTRACT #language en-US "FMP Dependency Check Lib" + +#string STR_MODULE_DESCRIPTION #language en-US "Provides FMP capsule dependency check services when updating the firmware image of a FMP device." diff --git a/FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.c b/FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.c new file mode 100644 index 0000000000..f4fde2963d --- /dev/null +++ b/FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.c @@ -0,0 +1,34 @@ +/** @file + Null instance of FmpDependencyCheckLib. + + Copyright (c) 2020, Intel Corporation. All rights reserved.
+ + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ +#include +#include + +/** + Check dependency for firmware update. + + @param[in] ImageTypeId Image Type Id. + @param[in] Version New version. + @param[in] Dependencies Fmp dependency. + @param[in] DependenciesSize Size, in bytes, of the Fmp dependency. + + @retval TRUE Dependencies are satisfied. + @retval FALSE Dependencies are unsatisfied or dependency check fails. + +**/ +BOOLEAN +EFIAPI +CheckFmpDependency ( + IN CONST EFI_GUID ImageTypeId, + IN CONST UINT32 Version, + IN CONST EFI_FIRMWARE_IMAGE_DEP *Dependencies, OPTIONAL + IN CONST UINT32 DependenciesSize OPTIONAL + ) +{ + return TRUE; +} diff --git a/FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.inf b/FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.inf new file mode 100644 index 0000000000..5794d89191 --- /dev/null +++ b/FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.inf @@ -0,0 +1,30 @@ +## @file +# Null instance of FmpDependencyCheckLib as an option to skip the dependency +# check when updating the firmware image of a FMP device. +# +# Copyright (c) 2020, Intel Corporation. All rights reserved.
+# +# SPDX-License-Identifier: BSD-2-Clause-Patent +## + +[Defines] + INF_VERSION = 0x00010005 + BASE_NAME = FmpDependencyCheckLibNull + MODULE_UNI_FILE = FmpDependencyCheckLibNull.uni + FILE_GUID = D63F3166-9CBC-4AC2-8F23-8818E42EA2BD + MODULE_TYPE = DXE_DRIVER + VERSION_STRING = 1.0 + LIBRARY_CLASS = FmpDependencyCheckLib|DXE_DRIVER UEFI_DRIVER UEFI_APPLICATION + +# +# The following information is for reference only and not required by the build tools. +# +# VALID_ARCHITECTURES = IA32 X64 ARM AARCH64 +# + +[Sources] + FmpDependencyCheckLibNull.c + +[Packages] + MdePkg/MdePkg.dec + FmpDevicePkg/FmpDevicePkg.dec diff --git a/FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.uni b/FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.uni new file mode 100644 index 0000000000..7942d08f76 --- /dev/null +++ b/FmpDevicePkg/Library/FmpDependencyCheckLibNull/FmpDependencyCheckLibNull.uni @@ -0,0 +1,13 @@ +// /** @file +// Null instance of FmpDependencyCheckLib as an option to skip the dependency +// check when updating the firmware image of a FMP device. +// +// Copyright (c) 2020, Intel Corporation. All rights reserved.
+// +// SPDX-License-Identifier: BSD-2-Clause-Patent +// +// **/ + +#string STR_MODULE_ABSTRACT #language en-US "FMP Dependency Check Library NULL instance" + +#string STR_MODULE_DESCRIPTION #language en-US "Null instance of FmpDependencyCheckLib as an option to skip the dependency check when updating the firmware image of a FMP device." -- 2.16.2.windows.1