92 lines
3.3 KiB
C
92 lines
3.3 KiB
C
/** @file
|
|
BIOS Guard Firmware Version Information Pei Module
|
|
|
|
@copyright
|
|
INTEL CONFIDENTIAL
|
|
Copyright 2019 - 2020 Intel Corporation.
|
|
|
|
The source code contained or described herein and all documents related to the
|
|
source code ("Material") are owned by Intel Corporation or its suppliers or
|
|
licensors. Title to the Material remains with Intel Corporation or its suppliers
|
|
and licensors. The Material may contain trade secrets and proprietary and
|
|
confidential information of Intel Corporation and its suppliers and licensors,
|
|
and is protected by worldwide copyright and trade secret laws and treaty
|
|
provisions. No part of the Material may be used, copied, reproduced, modified,
|
|
published, uploaded, posted, transmitted, distributed, or disclosed in any way
|
|
without Intel's prior express written permission.
|
|
|
|
No license under any patent, copyright, trade secret or other intellectual
|
|
property right is granted to or conferred upon you by disclosure or delivery
|
|
of the Materials, either expressly, by implication, inducement, estoppel or
|
|
otherwise. Any license under such intellectual property rights must be
|
|
express and approved by Intel in writing.
|
|
|
|
Unless otherwise agreed by Intel in writing, you may not remove or alter
|
|
this notice or any other notice embedded in Materials by Intel or
|
|
Intel's suppliers or licensors in any way.
|
|
|
|
This file contains a 'Sample Driver' and is licensed as such under the terms
|
|
of your license agreement with Intel or your vendor. This file may be modified
|
|
by the user, subject to the additional terms of the license agreement.
|
|
|
|
@par Specification
|
|
**/
|
|
|
|
#include "BiosGuardFirmwareVersionPeim.h"
|
|
|
|
|
|
/**
|
|
Publish Bios Guard version via Telemetry
|
|
|
|
@param[in] None
|
|
|
|
@retval EFI_SUCCESS
|
|
@retval EFI_NOT_FOUND.
|
|
@retval EFI_OUT_OF_RESOURCES.
|
|
**/
|
|
EFI_STATUS
|
|
PublishBiosGuardVersion ( VOID )
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_PHYSICAL_ADDRESS BiosGuardModulePtr;
|
|
SI_PREMEM_POLICY_PPI *SiPreMemPolicyPpi;
|
|
CPU_SECURITY_PREMEM_CONFIG *CpuSecurityPreMemConfig;
|
|
SI_POLICY_PPI *SiPolicyPpi;
|
|
BIOS_GUARD_CONFIG *BiosGuardConfig;
|
|
Status = EFI_SUCCESS;
|
|
SiPreMemPolicyPpi = NULL;
|
|
SiPolicyPpi = NULL;
|
|
CpuSecurityPreMemConfig = NULL;
|
|
BiosGuardConfig = NULL;
|
|
|
|
Status = PeiServicesLocatePpi (
|
|
&gSiPreMemPolicyPpiGuid,
|
|
0,
|
|
NULL,
|
|
(VOID **) &SiPreMemPolicyPpi
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
Status = GetConfigBlock ((VOID *) SiPreMemPolicyPpi, &gCpuSecurityPreMemConfigGuid, (VOID *) &CpuSecurityPreMemConfig);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
Status = PeiServicesLocatePpi (
|
|
&gSiPolicyPpiGuid,
|
|
0,
|
|
NULL,
|
|
(VOID **) &SiPolicyPpi
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
Status = GetConfigBlock ((VOID *) SiPolicyPpi, &gBiosGuardConfigGuid, (VOID *) &BiosGuardConfig);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
|
|
if (CpuSecurityPreMemConfig->BiosGuard == TRUE) {
|
|
BiosGuardModulePtr = BiosGuardConfig->BiosGuardModulePtr;
|
|
Status = PublishBiosGuardTelemetryHob (BiosGuardModulePtr);
|
|
} else {
|
|
DEBUG ((DEBUG_INFO, "BIOS Guard Module is Disabled, No Telemetry\n"));
|
|
}
|
|
return Status;
|
|
} |