119 lines
4.0 KiB
C
119 lines
4.0 KiB
C
/**@file
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@copyright
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INTEL CONFIDENTIAL
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Copyright 2016 - 2019 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 <Library/BaseLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PciSegmentLib.h>
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#include <Library/PciLib.h>
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#include <Register/HeciRegs.h>
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#include <Register/MeRegs.h>
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#include <Protocol/LifeCycleState.h>
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#include <Library/PreSiliconEnvDetectLib.h>
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LIFE_CYCLE_STATE mLifeCycleState;
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LIFE_CYCLE_STATE_PROTOCOL mLifeCycleStateProtocol = {
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LIFE_CYCLE_STATE_PROTOCOL_REVISION1,
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GetLifeCycleState
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};
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/**
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Retrieves life cycle state
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@param[in] This Protocol instance pointer.
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@param[out] LifeCycleState The life cycle state read from ME FW status.
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@retval EFI_SUCCESS The state was successfully retrived.
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**/
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EFI_STATUS
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GetLifeCycleState (
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IN LIFE_CYCLE_STATE_PROTOCOL *This,
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OUT LIFE_CYCLE_STATE *LifeCycleState
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)
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{
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*LifeCycleState = mLifeCycleState;
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return EFI_SUCCESS;
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}
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/**
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The life cycle state driver entry point.
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@param[in] ImageHandle Image handle of this driver
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@param[in] SystemTable A pointer to the EFI System Table.
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@return EFI_SUCCESS The protocol is installed successfully.
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@return Others Failed to initialize the driver.
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**/
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EFI_STATUS
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LifeCycleStateDriverEntry (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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EFI_HANDLE LifeCycleStatHandle;
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HECI_FW_STS6_REGISTER MeFirmwareStatus;
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LifeCycleStatHandle = NULL;
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MeFirmwareStatus.ul = PciSegmentRead32 (PCI_SEGMENT_LIB_ADDRESS (ME_SEGMENT, ME_BUS, ME_DEVICE_NUMBER, HECI_FUNCTION_NUMBER, R_ME_HFS_6));
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if (IsSimicsEnvironment()) {
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if (PciSegmentRead16 ((PCI_SEGMENT_LIB_ADDRESS (ME_SEGMENT, ME_BUS, ME_DEVICE_NUMBER, HECI_FUNCTION_NUMBER, 0) + PCI_DEVICE_ID_OFFSET)) == 0xFFFF) {
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DEBUG ((DEBUG_INFO, "HeciBaseAddress Not found! \n"));
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DEBUG ((DEBUG_INFO, "Temp set MeMode in Simics as normal mode! \n"));
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MeFirmwareStatus.r.FpfSocConfigLock = 0;
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}
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}
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mLifeCycleState = (MeFirmwareStatus.r.FpfSocConfigLock == 1) ? StateEndUser : StateManufacturing;
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//
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// Install on a new handle
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//
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Status = gBS->InstallProtocolInterface (
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&LifeCycleStatHandle,
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&gLifeCycleStateProtocolGuid,
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EFI_NATIVE_INTERFACE,
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&mLifeCycleStateProtocol
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);
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DEBUG ((DEBUG_INFO, "LifeCycleState Protocol Installation Status = %r\n", Status));
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return Status;
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}
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