/** @file
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Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "DxeMePolicyUpdate.h"
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//
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// Record version
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//
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#define RECORD_REVISION_1 0x01
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#define MAX_FW_UPDATE_BIOS_SELECTIONS 2
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//
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// Function implementations executed during policy initialization phase
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//
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/**
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Update the ME Policy Library
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@param[in, out] DxeMePolicy The pointer to get ME Policy protocol instance
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@retval EFI_SUCCESS Initialization complete.
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@retval EFI_UNSUPPORTED The chipset is unsupported by this driver.
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@retval EFI_OUT_OF_RESOURCES Do not have enough resources to initialize the driver.
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@retval EFI_DEVICE_ERROR Device error, driver exits abnormally.
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**/
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EFI_STATUS
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EFIAPI
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UpdateDxeMePolicy (
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IN OUT ME_POLICY_PROTOCOL *DxeMePolicy
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)
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{
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EFI_STATUS Status;
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EFI_EVENT EndOfDxeEvent;
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DEBUG ((DEBUG_INFO, "UpdateDxeMePolicy\n"));
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UpdateMePolicyFromSetup (DxeMePolicy);
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UpdateMePolicyFromMeSetup (DxeMePolicy);
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//
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// Register End of DXE event
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//
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Status = gBS->CreateEventEx (
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EVT_NOTIFY_SIGNAL,
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TPL_NOTIFY,
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UpdateMeSetupCallback,
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NULL,
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&gEfiEndOfDxeEventGroupGuid,
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&EndOfDxeEvent
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);
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ASSERT_EFI_ERROR (Status);
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return Status;
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}
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/**
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Update ME Policy while MePlatformProtocol is installed.
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@param[in] MePolicyInstance Instance of ME Policy Protocol
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**/
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VOID
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UpdateMePolicyFromMeSetup (
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IN ME_POLICY_PROTOCOL *MePolicyInstance
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)
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{
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}
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/**
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Update ME Policy if Setup variable exists.
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@param[in, out] MePolicyInstance Instance of ME Policy Protocol
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**/
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VOID
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UpdateMePolicyFromSetup (
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IN OUT ME_POLICY_PROTOCOL *MePolicyInstance
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)
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{
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}
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/**
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Functions performs HECI exchange with FW to update MePolicy settings.
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@param[in] Event A pointer to the Event that triggered the callback.
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@param[in] Context A pointer to private data registered with the callback function.
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**/
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VOID
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EFIAPI
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UpdateMeSetupCallback (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
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{
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gBS->CloseEvent (Event);
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return;
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}
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