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Rename Trusted Hob to Measured FV hob and add Guided Hob layout structure 

Signed-off-by : Chao Zhang<chao.b.zhang@intel.com>
Reviewed-by   : Dong Guo  <guo.dong@intel.com>


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13762 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
czhang46 2012-09-28 00:57:02 +00:00
parent 751915bcd9
commit 0758c830f7
6 changed files with 39 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
SecurityPkg/Include/Guid/TrustedFvHob.h → SecurityPkg/Include/Guid/MeasuredFvHob.h
View File

@ -1,5 +1,5 @@
/** @file
Defines the HOB GUID used to pass all PEI trusted FV info to
Defines the HOB GUID used to pass all PEI measured FV info to
DXE Driver.
Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>
@ -13,17 +13,24 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _TRUSTED_FV_HOB_H_
#define _TRUSTED_FV_HOB_H_
#ifndef _MEASURED_FV_HOB_H_
#define _MEASURED_FV_HOB_H_
#include <IndustryStandard/UefiTcgPlatform.h>
///
/// The Global ID of a GUIDed HOB used to pass all PEI trusted FV info to DXE Driver.
/// The Global ID of a GUIDed HOB used to pass all PEI measured FV info to DXE Driver.
///
#define EFI_TRUSTED_FV_HOB_GUID \
#define EFI_MEASURED_FV_HOB_GUID \
{ \
0xb2360b42, 0x7173, 0x420a, { 0x86, 0x96, 0x46, 0xca, 0x6b, 0xab, 0x10, 0x60 } \
}
extern EFI_GUID gTrustedFvHobGuid;
extern EFI_GUID gMeasuredFvHobGuid;
typedef struct {
UINT32 Num;
EFI_PLATFORM_FIRMWARE_BLOB MeasuredFvBuf[1];
} MEASURED_HOB_DATA;
#endif

22
SecurityPkg/Library/DxeTpmMeasureBootLib/DxeTpmMeasureBootLib.c
View File

@ -34,7 +34,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Protocol/DevicePathToText.h>
#include <Protocol/FirmwareVolumeBlock.h>
#include <Guid/TrustedFvHob.h>
#include <Guid/MeasuredFvHob.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
@ -59,7 +59,7 @@ UINTN mImageSize;
// Measured FV handle cache
//
EFI_HANDLE mCacheMeasuredHandle = NULL;
UINT32 *mGuidHobData = NULL;
MEASURED_HOB_DATA *mMeasuredHobData = NULL;
/**
Reads contents of a PE/COFF image in memory buffer.
@ -740,7 +740,6 @@ DxeTpmMeasureBootHandler (
PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbProtocol;
EFI_PHYSICAL_ADDRESS FvAddress;
EFI_PLATFORM_FIRMWARE_BLOB *TrustedFvBuf;
UINT32 Index;
Status = gBS->LocateProtocol (&gEfiTcgProtocolGuid, NULL, (VOID **) &TcgProtocol);
@ -848,14 +847,14 @@ DxeTpmMeasureBootHandler (
return EFI_SUCCESS;
}
//
// The PE image from untrusted Firmware volume need be measured
// The PE image from trusted Firmware volume will be mearsured according to policy below.
// if it is driver, do not measure
// The PE image from unmeasured Firmware volume need be measured
// The PE image from measured Firmware volume will be mearsured according to policy below.
// If it is driver, do not measure
// If it is application, still measure.
//
ApplicationRequired = TRUE;
if (mCacheMeasuredHandle != Handle && mGuidHobData != NULL) {
if (mCacheMeasuredHandle != Handle && mMeasuredHobData != NULL) {
//
// Search for Root FV of this PE image
//
@ -877,11 +876,10 @@ DxeTpmMeasureBootHandler (
return Status;
}
TrustedFvBuf = (EFI_PLATFORM_FIRMWARE_BLOB *)(mGuidHobData + 1);
ApplicationRequired = FALSE;
for (Index = 0; Index < *mGuidHobData; Index++) {
if(TrustedFvBuf[Index].BlobBase == FvAddress) {
for (Index = 0; Index < mMeasuredHobData->Num; Index++) {
if(mMeasuredHobData->MeasuredFvBuf[Index].BlobBase == FvAddress) {
//
// Cache measured FV for next measurement
//
@ -996,10 +994,10 @@ DxeTpmMeasureBootLibConstructor (
GuidHob = NULL;
GuidHob = GetFirstGuidHob (&gTrustedFvHobGuid);
GuidHob = GetFirstGuidHob (&gMeasuredFvHobGuid);
if (GuidHob != NULL) {
mGuidHobData = GET_GUID_HOB_DATA (GuidHob);
mMeasuredHobData = GET_GUID_HOB_DATA (GuidHob);
}
return RegisterSecurity2Handler (

2
SecurityPkg/Library/DxeTpmMeasureBootLib/DxeTpmMeasureBootLib.inf
View File

@ -53,7 +53,7 @@
HobLib
[Guids]
gTrustedFvHobGuid
gMeasuredFvHobGuid
[Protocols]
gEfiTcgProtocolGuid ## CONSUMES

4
SecurityPkg/SecurityPkg.dec
View File

@ -47,8 +47,8 @@
## Include/Guid/TcgEventHob.h
gTcgEventEntryHobGuid = { 0x2e3044ac, 0x879f, 0x490f, {0x97, 0x60, 0xbb, 0xdf, 0xaf, 0x69, 0x5f, 0x50 }}
## Include/Guid/TrustedFvHob.h
gTrustedFvHobGuid = { 0xb2360b42, 0x7173, 0x420a, { 0x86, 0x96, 0x46, 0xca, 0x6b, 0xab, 0x10, 0x60 }}
## Include/Guid/MeasuredFvHob.h
gMeasuredFvHobGuid = { 0xb2360b42, 0x7173, 0x420a, { 0x86, 0x96, 0x46, 0xca, 0x6b, 0xab, 0x10, 0x60 }}
## Include/Guid/PhysicalPresenceData.h
gEfiPhysicalPresenceGuid = { 0xf6499b1, 0xe9ad, 0x493d, { 0xb9, 0xc2, 0x2f, 0x90, 0x81, 0x5c, 0x6c, 0xbc }}

22
SecurityPkg/Tcg/TcgPei/TcgPei.c
View File

@ -23,7 +23,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Ppi/EndOfPeiPhase.h>
#include <Guid/TcgEventHob.h>
#include <Guid/TrustedFvHob.h>
#include <Guid/MeasuredFvHob.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
@ -148,35 +148,33 @@ EndofPeiSignalNotifyCallBack (
IN VOID *Ppi
)
{
UINT8 *HobData;
MEASURED_HOB_DATA *MeasuredHobData;
HobData = NULL;
MeasuredHobData = NULL;
//
// Create a Guid hob to save all trusted Fv
// Create a Guid hob to save all measured Fv
//
HobData = BuildGuidHob(
&gTrustedFvHobGuid,
MeasuredHobData = BuildGuidHob(
&gMeasuredFvHobGuid,
sizeof(UINTN) + sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredBaseFvIndex + mMeasuredChildFvIndex)
);
if (HobData != NULL){
if (MeasuredHobData != NULL){
//
// Save measured FV info enty number
//
*(UINT32 *)HobData = mMeasuredBaseFvIndex + mMeasuredChildFvIndex;
MeasuredHobData->Num = mMeasuredBaseFvIndex + mMeasuredChildFvIndex;
HobData += sizeof(UINT32);
//
// Save measured base Fv info
//
CopyMem (HobData, mMeasuredBaseFvInfo, sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredBaseFvIndex));
CopyMem (MeasuredHobData->MeasuredFvBuf, mMeasuredBaseFvInfo, sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredBaseFvIndex));
HobData += sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredBaseFvIndex);
//
// Save measured child Fv info
//
CopyMem (HobData, mMeasuredChildFvInfo, sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredChildFvIndex));
CopyMem (&MeasuredHobData->MeasuredFvBuf[mMeasuredBaseFvIndex] , mMeasuredChildFvInfo, sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredChildFvIndex));
}
return EFI_SUCCESS;

2
SecurityPkg/Tcg/TcgPei/TcgPei.inf
View File

@ -51,7 +51,7 @@
[Guids]
gTcgEventEntryHobGuid
gTrustedFvHobGuid
gMeasuredFvHobGuid
[Ppis]
gPeiLockPhysicalPresencePpiGuid