123 lines
4.2 KiB
C
123 lines
4.2 KiB
C
/** @file
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BIOS Guard Firmware Version Information Pei Module
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@copyright
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INTEL CONFIDENTIAL
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Copyright 2019 - 2020 Intel Corporation.
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The source code contained or described herein and all documents related to the
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source code ("Material") are owned by Intel Corporation or its suppliers or
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licensors. Title to the Material remains with Intel Corporation or its suppliers
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and licensors. The Material may contain trade secrets and proprietary and
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confidential information of Intel Corporation and its suppliers and licensors,
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and is protected by worldwide copyright and trade secret laws and treaty
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provisions. No part of the Material may be used, copied, reproduced, modified,
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published, uploaded, posted, transmitted, distributed, or disclosed in any way
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without Intel's prior express written permission.
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No license under any patent, copyright, trade secret or other intellectual
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property right is granted to or conferred upon you by disclosure or delivery
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of the Materials, either expressly, by implication, inducement, estoppel or
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otherwise. Any license under such intellectual property rights must be
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express and approved by Intel in writing.
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Unless otherwise agreed by Intel in writing, you may not remove or alter
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this notice or any other notice embedded in Materials by Intel or
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Intel's suppliers or licensors in any way.
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This file contains a 'Sample Driver' and is licensed as such under the terms
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of your license agreement with Intel or your vendor. This file may be modified
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by the user, subject to the additional terms of the license agreement.
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@par Specification
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**/
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#include "BiosGuardFirmwareVersionPeim.h"
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static EFI_PEI_NOTIFY_DESCRIPTOR mBiosGuardCallbackNotifyList = {
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(EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
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&gSiPolicyReadyPpiGuid,
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PublishBiosGuardVersionCallback
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};
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/**
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Publish Bios Guard Telemetry Hob
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@param[in] Address of BiosGuardModule
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@retval EFI_SUCCESS
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@retval EFI_OUT_OF_RESOURCES.
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**/
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EFI_STATUS
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PublishBiosGuardTelemetryHob (
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IN EFI_PHYSICAL_ADDRESS BiosGuardModulePtr
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)
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{
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EFI_STATUS Status;
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UINT64 BiosGuardTelemetryVersionVal;
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// Init BIOS Guard FVI Telemetry record
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//
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BiosGuardTelemetryVersionVal = (UINT64)(LShiftU64 ((UINT64)*(UINT8 *)(UINTN)(BiosGuardModulePtr + BIOSGUARD_REVISION_ID_MAJOR_OFFSET), VERSION_MAJOR_VERSION_SHIFT)
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| LShiftU64 ((UINT64)*(UINT8 *)(UINTN)(BiosGuardModulePtr + BIOSGUARD_REVISION_ID_MINOR_OFFSET) , VERSION_MINOR_VERSION_SHIFT)
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| LShiftU64 ((UINT64)*(UINT16 *)(UINTN)(BiosGuardModulePtr + BIOSGUARD_BUILD_NUMBER_OFFSET) , VERSION_BUILD_NUM_SHIFT));
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Status = AppendTelemetryFviBlock (gBiosGuardComponentId, BiosGuardTelemetryVersionVal, FVI_INTEL_SIGNATURE);
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return Status;
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}
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/**
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Callback function to Publish Bios Guard Version when SiPolicyPpi is installed.
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@param[in] PeiServices General purpose services available to every PEIM.
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@param[in] NotifyDescriptor The notification structure this PEIM registered on install.
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@param[in] Ppi The memory discovered PPI. Not used.
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@retval EFI_SUCCESS Succeeds.
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**/
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EFI_STATUS
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EFIAPI
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PublishBiosGuardVersionCallback (
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IN EFI_PEI_SERVICES **PeiServices,
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IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
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IN VOID *Ppi
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)
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{
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EFI_STATUS Status;
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DEBUG ((DEBUG_INFO, "Entered Bios Guard Firmware Version Publish Callback\n"));
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Status = PublishBiosGuardVersion ();
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DEBUG ((DEBUG_INFO, "Exit Bios Guard Firmware Version Publish Callback\n"));
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return Status;
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}
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/**
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The Entry point of the Bios Guard Firmware Version PEIM
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@param[in] FileHandle Pointer to image file handle
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@param[in] PeiServices Pointer to PEI Services Table
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@return EFI_SUCCESS.
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**/
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EFI_STATUS
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EFIAPI
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BiosGuardFirmwareVersionEntry (
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IN EFI_PEI_FILE_HANDLE FileHandle,
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IN CONST EFI_PEI_SERVICES **PeiServices
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)
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{
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EFI_STATUS Status;
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DEBUG ((DEBUG_INFO, "Bios Guard Firmware Version Publish Callback Notified\n"));
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Status = PeiServicesNotifyPpi (&mBiosGuardCallbackNotifyList);
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ASSERT_EFI_ERROR (Status);
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return EFI_SUCCESS;
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}
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