1abfa4ce48
TCG EFI Protocol Specification for TPM Family 2.0 Revision 1.0 Version 9 at http://www.trustedcomputinggroup.org/resources/tcg_efi_protocol_specification TCG Physical Presence Interface Specification Version 1.30, Revision 00.52 at http://www.trustedcomputinggroup.org/resources/tcg_physical_presence_interface_specification Add Tcg2XXX, similar file/directory as TrEEXXX. Old TrEE driver/library can be deprecated. 1) Add Tcg2Pei/Dxe/Smm driver to log event and provide services. 2) Add Dxe/Pei/SmmTcg2PhysicalPresenceLib to support TCG PP. 3) Update Tpm2 library to use TCG2 protocol instead of TrEE protocol. Test Win8/Win10 with SecureBoot enabled, PCR7 shows bound. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: "Yao, Jiewen" <Jiewen.Yao@intel.com> Reviewed-by: "Zhang, Chao B" <chao.b.zhang@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18219 6f19259b-4bc3-4df7-8a09-765794883524
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/** @file
|
|
Get TPM 2.0 physical presence information.
|
|
|
|
This library will get TPM 2.0 physical presence information.
|
|
|
|
Copyright (c) 2015, Intel Corporation. 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.
|
|
|
|
**/
|
|
|
|
#include <PiPei.h>
|
|
|
|
#include <Guid/Tcg2PhysicalPresenceData.h>
|
|
#include <Ppi/ReadOnlyVariable2.h>
|
|
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/PeiServicesLib.h>
|
|
#include <Library/PeiServicesTablePointerLib.h>
|
|
#include <Library/Tcg2PhysicalPresenceLib.h>
|
|
|
|
/**
|
|
Return TPM2 ManagementFlags set by PP interface.
|
|
|
|
@retval ManagementFlags TPM2 Management Flags.
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
Tcg2PhysicalPresenceLibGetManagementFlags (
|
|
VOID
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_PEI_READ_ONLY_VARIABLE2_PPI *VariablePpi;
|
|
EFI_TCG2_PHYSICAL_PRESENCE_FLAGS PpiFlags;
|
|
UINTN DataSize;
|
|
|
|
Status = PeiServicesLocatePpi (&gEfiPeiReadOnlyVariable2PpiGuid, 0, NULL, (VOID **) &VariablePpi);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE_FLAGS);
|
|
Status = VariablePpi->GetVariable (
|
|
VariablePpi,
|
|
TCG2_PHYSICAL_PRESENCE_FLAGS_VARIABLE,
|
|
&gEfiTcg2PhysicalPresenceGuid,
|
|
NULL,
|
|
&DataSize,
|
|
&PpiFlags
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
PpiFlags.PPFlags = TCG2_BIOS_TPM_MANAGEMENT_FLAG_DEFAULT;
|
|
}
|
|
return PpiFlags.PPFlags;
|
|
}
|