mirror of https://github.com/acidanthera/audk.git
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
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/** @file
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Permanently disable the library instance in DXE_RUNTIME_DRIVER modules when
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exiting boot services.
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Copyright (C) Red Hat
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Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
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Copyright (c) 2018, Linaro, Ltd. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Uefi/UefiSpec.h>
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#include "Ram.h"
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STATIC EFI_EVENT mExitBootServicesEvent;
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/**
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Notification function that is triggered when the boot service
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ExitBootServices() is called.
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@param[in] Event Event whose notification function is being invoked. Here,
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unused.
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@param[in] Context The pointer to the notification function's context, which
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is implementation-dependent. Here, unused.
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**/
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STATIC
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VOID
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EFIAPI
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ExitBootServicesNotify (
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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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mDebugLibFdtPL011UartAddress = 0;
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mDebugLibFdtPL011UartPermanentStatus = RETURN_ABORTED;
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}
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/**
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Library instance constructor, registering ExitBootServicesNotify().
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@param[in] ImageHandle The firmware-allocated handle for the EFI image.
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@param[in] SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The operation completed successfully.
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@return Error codes propagated from CreateEvent(); the
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registration of ExitBootServicesNotify() failed.
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**/
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EFI_STATUS
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EFIAPI
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DxeRuntimeDebugLibFdtPL011UartConstructor (
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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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return SystemTable->BootServices->CreateEvent (
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EVT_SIGNAL_EXIT_BOOT_SERVICES,
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TPL_CALLBACK,
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ExitBootServicesNotify,
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NULL /* NotifyContext */,
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&mExitBootServicesEvent
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);
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}
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/**
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Library instance destructor, deregistering ExitBootServicesNotify().
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@param[in] ImageHandle The firmware-allocated handle for the EFI image.
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@param[in] SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS Library instance tear-down complete.
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@return Error codes propagated from CloseEvent(); the
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deregistration of ExitBootServicesNotify() failed.
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**/
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EFI_STATUS
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EFIAPI
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DxeRuntimeDebugLibFdtPL011UartDestructor (
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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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return SystemTable->BootServices->CloseEvent (mExitBootServicesEvent);
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}
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