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Measure Processor location as system identity to PCR[1] according to Tcg server spec 

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

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13971 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
czhang46 2012-11-28 01:32:51 +00:00
parent f5a859d685
commit b25380e3ed
2 changed files with 116 additions and 0 deletions
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115
SecurityPkg/Tcg/TcgDxe/TcgDxe.c
View File

@ -34,6 +34,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Protocol/DevicePath.h>
#include <Protocol/TcgService.h>
#include <Protocol/AcpiTable.h>
#include <Protocol/MpService.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
@ -158,6 +159,87 @@ EFI_TCG_SERVER_ACPI_TABLE mTcgServerAcpiTemplate = {
UINTN mBootAttempts = 0;
CHAR16 mBootVarName[] = L"BootOrder";
/**
Get All processors EFI_CPU_LOCATION in system. LocationBuf is allocated inside the function
Caller is responsible to free LocationBuf.
@param[out] LocationBuf Returns Processor Location Buffer.
@param[out] Num Returns processor number.
@retval EFI_SUCCESS Operation completed successfully.
@retval EFI_UNSUPPORTED MpService protocol not found.
**/
EFI_STATUS
GetProcessorsCpuLocation (
OUT EFI_CPU_PHYSICAL_LOCATION **LocationBuf,
OUT UINTN *Num
)
{
EFI_STATUS Status;
EFI_MP_SERVICES_PROTOCOL *MpProtocol;
UINTN ProcessorNum;
UINTN EnabledProcessorNum;
EFI_PROCESSOR_INFORMATION ProcessorInfo;
EFI_CPU_PHYSICAL_LOCATION *ProcessorLocBuf;
UINTN Index;
Status = gBS->LocateProtocol (&gEfiMpServiceProtocolGuid, NULL, (VOID **) &MpProtocol);
if (EFI_ERROR (Status)) {
//
// MP protocol is not installed
//
return EFI_UNSUPPORTED;
}
Status = MpProtocol->GetNumberOfProcessors(
MpProtocol,
&ProcessorNum,
&EnabledProcessorNum
);
if (EFI_ERROR(Status)){
return Status;
}
Status = gBS->AllocatePool(
EfiBootServicesData,
sizeof(EFI_CPU_PHYSICAL_LOCATION) * ProcessorNum,
&ProcessorLocBuf
);
if (EFI_ERROR(Status)){
return Status;
}
//
// Get each processor Location info
//
for (Index = 0; Index < ProcessorNum; Index++) {
Status = MpProtocol->GetProcessorInfo(
MpProtocol,
Index,
&ProcessorInfo
);
if (EFI_ERROR(Status)){
FreePool(ProcessorLocBuf);
return Status;
}
//
// Get all Processor Location info & measure
//
CopyMem(
&ProcessorLocBuf[Index],
&ProcessorInfo.Location,
sizeof(EFI_CPU_PHYSICAL_LOCATION)
);
}
*LocationBuf = ProcessorLocBuf;
*Num = ProcessorNum;
return Status;
}
/**
This service provides EFI protocol capability information, state information
about the TPM, and Event Log state information.
@ -679,7 +761,12 @@ MeasureHandoffTables (
SMBIOS_TABLE_ENTRY_POINT *SmbiosTable;
TCG_PCR_EVENT_HDR TcgEvent;
EFI_HANDOFF_TABLE_POINTERS HandoffTables;
UINTN ProcessorNum;
EFI_CPU_PHYSICAL_LOCATION *ProcessorLocBuf;
//
// Measure SMBIOS with EV_EFI_HANDOFF_TABLES to PCR[1]
//
Status = EfiGetSystemConfigurationTable (
&gEfiSmbiosTableGuid,
(VOID **) &SmbiosTable
@ -708,6 +795,34 @@ MeasureHandoffTables (
);
}
if (PcdGet8 (PcdTpmPlatformClass) == TCG_PLATFORM_TYPE_SERVER) {
//
// Tcg Server spec.
// Measure each processor EFI_CPU_PHYSICAL_LOCATION with EV_TABLE_OF_DEVICES to PCR[1]
//
Status = GetProcessorsCpuLocation(&ProcessorLocBuf, &ProcessorNum);
if (!EFI_ERROR(Status)){
TcgEvent.PCRIndex = 1;
TcgEvent.EventType = EV_TABLE_OF_DEVICES;
TcgEvent.EventSize = sizeof (HandoffTables);
HandoffTables.NumberOfTables = 1;
HandoffTables.TableEntry[0].VendorGuid = gEfiMpServiceProtocolGuid;
HandoffTables.TableEntry[0].VendorTable = ProcessorLocBuf;
Status = TcgDxeHashLogExtendEventI (
&mTcgDxeData,
(UINT8*)(UINTN)ProcessorLocBuf,
sizeof(EFI_CPU_PHYSICAL_LOCATION) * ProcessorNum,
&TcgEvent,
(UINT8*)&HandoffTables
);
FreePool(ProcessorLocBuf);
}
}
return Status;
}

1
SecurityPkg/Tcg/TcgDxe/TcgDxe.inf
View File

@ -62,6 +62,7 @@
gEfiTcgProtocolGuid ## PRODUCES
gEfiAcpiTableProtocolGuid # PROTOCOL ALWAYS_CONSUMED
gEfiDevicePathProtocolGuid # PROTOCOL ALWAYS_CONSUMED
gEfiMpServiceProtocolGuid # PROTOCOL ALWAYS_CONSUMED
[Pcd]
gEfiSecurityPkgTokenSpaceGuid.PcdTpmPlatformClass