From aa8c6e2ad388888af6bec9aea1ff252b75dd34dd Mon Sep 17 00:00:00 2001 From: Star Zeng Date: Fri, 30 Nov 2018 17:14:49 +0800 Subject: SecurityPkg Tcg(2)Pei: Remove the using of PcdPeiCoreMaxFvSupported REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1405 Background as below. Problem: As static configuration from the PCDs, the binary PeiCore (for example in FSP binary with dispatch mode) could not predict how many FVs, Files or PPIs for different platforms. Burden: Platform developers need configure the PCDs accordingly for different platforms. To solve the problem and remove the burden, we can update PeiCore to remove the using of PcdPeiCoreMaxFvSupported, PcdPeiCoreMaxPeimPerFv and PcdPeiCoreMaxPpiSupported by extending buffer dynamically for FV, File and PPI management. This patch removes the using of PcdPeiCoreMaxFvSupported in Tcg(2)Pei. Cc: Chao Zhang Cc: Jiewen Yao Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Star Zeng Reviewed-by: Chao Zhang --- SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c | 59 +++++++++++++++++++++++-------------- SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.inf | 1 - SecurityPkg/Tcg/TcgPei/TcgPei.c | 59 +++++++++++++++++++++++-------------- SecurityPkg/Tcg/TcgPei/TcgPei.inf | 1 - 4 files changed, 74 insertions(+), 46 deletions(-) (limited to 'SecurityPkg') diff --git a/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c b/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c index 09ef0c7..152e3f7 100644 --- a/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c +++ b/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c @@ -71,10 +71,17 @@ EFI_PEI_PPI_DESCRIPTOR mTpmInitializationDonePpiList = { NULL }; +// +// Number of firmware blobs to grow by each time we run out of room +// +#define FIRMWARE_BLOB_GROWTH_STEP 4 + EFI_PLATFORM_FIRMWARE_BLOB *mMeasuredBaseFvInfo; +UINT32 mMeasuredMaxBaseFvIndex = 0; UINT32 mMeasuredBaseFvIndex = 0; EFI_PLATFORM_FIRMWARE_BLOB *mMeasuredChildFvInfo; +UINT32 mMeasuredMaxChildFvIndex = 0; UINT32 mMeasuredChildFvIndex = 0; /** @@ -615,13 +622,20 @@ MeasureFvImage ( // // Add new FV into the measured FV list. // - ASSERT (mMeasuredBaseFvIndex < PcdGet32 (PcdPeiCoreMaxFvSupported)); - if (mMeasuredBaseFvIndex < PcdGet32 (PcdPeiCoreMaxFvSupported)) { - mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobBase = FvBase; - mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobLength = FvLength; - mMeasuredBaseFvIndex++; + if (mMeasuredBaseFvIndex >= mMeasuredMaxBaseFvIndex) { + mMeasuredBaseFvInfo = ReallocatePool ( + sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * mMeasuredMaxBaseFvIndex, + sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredMaxBaseFvIndex + FIRMWARE_BLOB_GROWTH_STEP), + mMeasuredBaseFvInfo + ); + ASSERT (mMeasuredBaseFvInfo != NULL); + mMeasuredMaxBaseFvIndex = mMeasuredMaxBaseFvIndex + FIRMWARE_BLOB_GROWTH_STEP; } + mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobBase = FvBase; + mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobLength = FvLength; + mMeasuredBaseFvIndex++; + return Status; } @@ -724,20 +738,26 @@ FirmwareVolmeInfoPpiNotifyCallback ( // if (Fv->ParentFvName != NULL || Fv->ParentFileName != NULL ) { - ASSERT (mMeasuredChildFvIndex < PcdGet32 (PcdPeiCoreMaxFvSupported)); - if (mMeasuredChildFvIndex < PcdGet32 (PcdPeiCoreMaxFvSupported)) { - // - // Check whether FV is in the measured child FV list. - // - for (Index = 0; Index < mMeasuredChildFvIndex; Index++) { - if (mMeasuredChildFvInfo[Index].BlobBase == (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo) { - return EFI_SUCCESS; - } + if (mMeasuredChildFvIndex >= mMeasuredMaxChildFvIndex) { + mMeasuredChildFvInfo = ReallocatePool ( + sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * mMeasuredMaxChildFvIndex, + sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredMaxChildFvIndex + FIRMWARE_BLOB_GROWTH_STEP), + mMeasuredChildFvInfo + ); + ASSERT (mMeasuredChildFvInfo != NULL); + mMeasuredMaxChildFvIndex = mMeasuredMaxChildFvIndex + FIRMWARE_BLOB_GROWTH_STEP; + } + // + // Check whether FV is in the measured child FV list. + // + for (Index = 0; Index < mMeasuredChildFvIndex; Index++) { + if (mMeasuredChildFvInfo[Index].BlobBase == (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo) { + return EFI_SUCCESS; } - mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobBase = (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo; - mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobLength = Fv->FvInfoSize; - mMeasuredChildFvIndex++; } + mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobBase = (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo; + mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobLength = Fv->FvInfoSize; + mMeasuredChildFvIndex++; return EFI_SUCCESS; } @@ -761,11 +781,6 @@ PeimEntryMP ( { EFI_STATUS Status; - mMeasuredBaseFvInfo = (EFI_PLATFORM_FIRMWARE_BLOB *) AllocateZeroPool (sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * PcdGet32 (PcdPeiCoreMaxFvSupported)); - ASSERT (mMeasuredBaseFvInfo != NULL); - mMeasuredChildFvInfo = (EFI_PLATFORM_FIRMWARE_BLOB *) AllocateZeroPool (sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * PcdGet32 (PcdPeiCoreMaxFvSupported)); - ASSERT (mMeasuredChildFvInfo != NULL); - if (PcdGet8 (PcdTpm2ScrtmPolicy) == 1) { Status = MeasureCRTMVersion (); } diff --git a/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.inf b/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.inf index ea9dc75..2f3dcb7 100644 --- a/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.inf +++ b/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.inf @@ -83,7 +83,6 @@ gEfiSecurityPkgTokenSpaceGuid.PcdTpm2InitializationPolicy ## CONSUMES gEfiSecurityPkgTokenSpaceGuid.PcdTpm2SelfTestPolicy ## SOMETIMES_CONSUMES gEfiSecurityPkgTokenSpaceGuid.PcdTpm2ScrtmPolicy ## CONSUMES - gEfiMdeModulePkgTokenSpaceGuid.PcdPeiCoreMaxFvSupported ## CONSUMES gEfiSecurityPkgTokenSpaceGuid.PcdStatusCodeSubClassTpmDevice ## SOMETIMES_CONSUMES ## SOMETIMES_CONSUMES ## SOMETIMES_PRODUCES diff --git a/SecurityPkg/Tcg/TcgPei/TcgPei.c b/SecurityPkg/Tcg/TcgPei/TcgPei.c index d070475..8b063c0 100644 --- a/SecurityPkg/Tcg/TcgPei/TcgPei.c +++ b/SecurityPkg/Tcg/TcgPei/TcgPei.c @@ -57,10 +57,17 @@ EFI_PEI_PPI_DESCRIPTOR mTpmInitializationDonePpiList = { NULL }; +// +// Number of firmware blobs to grow by each time we run out of room +// +#define FIRMWARE_BLOB_GROWTH_STEP 4 + EFI_PLATFORM_FIRMWARE_BLOB *mMeasuredBaseFvInfo; +UINT32 mMeasuredMaxBaseFvIndex = 0; UINT32 mMeasuredBaseFvIndex = 0; EFI_PLATFORM_FIRMWARE_BLOB *mMeasuredChildFvInfo; +UINT32 mMeasuredMaxChildFvIndex = 0; UINT32 mMeasuredChildFvIndex = 0; EFI_PEI_FIRMWARE_VOLUME_INFO_MEASUREMENT_EXCLUDED_PPI *mMeasurementExcludedFvPpi; @@ -424,13 +431,20 @@ MeasureFvImage ( // // Add new FV into the measured FV list. // - ASSERT (mMeasuredBaseFvIndex < PcdGet32 (PcdPeiCoreMaxFvSupported)); - if (mMeasuredBaseFvIndex < PcdGet32 (PcdPeiCoreMaxFvSupported)) { - mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobBase = FvBase; - mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobLength = FvLength; - mMeasuredBaseFvIndex++; + if (mMeasuredBaseFvIndex >= mMeasuredMaxBaseFvIndex) { + mMeasuredBaseFvInfo = ReallocatePool ( + sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * mMeasuredMaxBaseFvIndex, + sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredMaxBaseFvIndex + FIRMWARE_BLOB_GROWTH_STEP), + mMeasuredBaseFvInfo + ); + ASSERT (mMeasuredBaseFvInfo != NULL); + mMeasuredMaxBaseFvIndex = mMeasuredMaxBaseFvIndex + FIRMWARE_BLOB_GROWTH_STEP; } + mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobBase = FvBase; + mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobLength = FvLength; + mMeasuredBaseFvIndex++; + return Status; } @@ -537,20 +551,26 @@ FirmwareVolmeInfoPpiNotifyCallback ( // if (Fv->ParentFvName != NULL || Fv->ParentFileName != NULL ) { - ASSERT (mMeasuredChildFvIndex < PcdGet32 (PcdPeiCoreMaxFvSupported)); - if (mMeasuredChildFvIndex < PcdGet32 (PcdPeiCoreMaxFvSupported)) { - // - // Check whether FV is in the measured child FV list. - // - for (Index = 0; Index < mMeasuredChildFvIndex; Index++) { - if (mMeasuredChildFvInfo[Index].BlobBase == (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo) { - return EFI_SUCCESS; - } + if (mMeasuredChildFvIndex >= mMeasuredMaxChildFvIndex) { + mMeasuredChildFvInfo = ReallocatePool ( + sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * mMeasuredMaxChildFvIndex, + sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredMaxChildFvIndex + FIRMWARE_BLOB_GROWTH_STEP), + mMeasuredChildFvInfo + ); + ASSERT (mMeasuredChildFvInfo != NULL); + mMeasuredMaxChildFvIndex = mMeasuredMaxChildFvIndex + FIRMWARE_BLOB_GROWTH_STEP; + } + // + // Check whether FV is in the measured child FV list. + // + for (Index = 0; Index < mMeasuredChildFvIndex; Index++) { + if (mMeasuredChildFvInfo[Index].BlobBase == (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo) { + return EFI_SUCCESS; } - mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobBase = (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo; - mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobLength = Fv->FvInfoSize; - mMeasuredChildFvIndex++; } + mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobBase = (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo; + mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobLength = Fv->FvInfoSize; + mMeasuredChildFvIndex++; return EFI_SUCCESS; } @@ -707,11 +727,6 @@ PeimEntryMP ( ); // Do not check status, because it is optional - mMeasuredBaseFvInfo = (EFI_PLATFORM_FIRMWARE_BLOB *) AllocateZeroPool (sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * PcdGet32 (PcdPeiCoreMaxFvSupported)); - ASSERT (mMeasuredBaseFvInfo != NULL); - mMeasuredChildFvInfo = (EFI_PLATFORM_FIRMWARE_BLOB *) AllocateZeroPool (sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * PcdGet32 (PcdPeiCoreMaxFvSupported)); - ASSERT (mMeasuredChildFvInfo != NULL); - Status = Tpm12RequestUseTpm (); if (EFI_ERROR (Status)) { return Status; diff --git a/SecurityPkg/Tcg/TcgPei/TcgPei.inf b/SecurityPkg/Tcg/TcgPei/TcgPei.inf index 4c8a055..8db93b9 100644 --- a/SecurityPkg/Tcg/TcgPei/TcgPei.inf +++ b/SecurityPkg/Tcg/TcgPei/TcgPei.inf @@ -81,7 +81,6 @@ gEfiSecurityPkgTokenSpaceGuid.PcdTpmInstanceGuid ## CONSUMES gEfiSecurityPkgTokenSpaceGuid.PcdTpmInitializationPolicy ## CONSUMES gEfiSecurityPkgTokenSpaceGuid.PcdTpmScrtmPolicy ## SOMETIMES_CONSUMES - gEfiMdeModulePkgTokenSpaceGuid.PcdPeiCoreMaxFvSupported ## CONSUMES gEfiSecurityPkgTokenSpaceGuid.PcdStatusCodeSubClassTpmDevice ## SOMETIMES_CONSUMES [Depex] -- cgit v1.1