DxeResetSystemAcpiGed.c File Reference

#include <Base.h>
#include <Library/DebugLib.h>
#include <Library/DxeServicesTableLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Library/UefiRuntimeLib.h>
#include "ResetSystemAcpiGed.h"

Go to the source code of this file.

Functions
STATIC EFI_STATUS	SetMemoryAttributesRunTime (UINTN Address)
STATIC EFI_STATUS	GetPowerManagerByParseAcpiInfo (VOID)
STATIC VOID	ResetSystemLibAddressChangeEvent (IN EFI_EVENT Event, IN VOID *Context)
STATIC VOID	AcpiNotificationEvent (IN EFI_EVENT Event, IN VOID *Context)
EFI_STATUS EFIAPI	ResetSystemLibConstructor (IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)

Detailed Description

Dxe ResetSystem library implementation.

Copyright (c) 2024 Loongson Technology Corporation Limited. All rights reserved.

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file DxeResetSystemAcpiGed.c.

Function Documentation

AcpiNotificationEvent()

STATIC VOID AcpiNotificationEvent	(	IN EFI_EVENT	Event,
		IN VOID *	Context
	)

Notification function of ACPI Table change.

This is a notification function registered on ACPI Table change event. It saves the Century address stored in ACPI FADT table.

Parameters

Event	Event whose notification function is being invoked.
Context	Pointer to the notification function's context.

Definition at line 187 of file DxeResetSystemAcpiGed.c.

GetPowerManagerByParseAcpiInfo()

STATIC EFI_STATUS GetPowerManagerByParseAcpiInfo

(

VOID

)

Find the power manager related info from ACPI table

Return values

RETURN_SUCCESS	Successfully find out all the required information.
RETURN_NOT_FOUND	Failed to find the required info.

Definition at line 98 of file DxeResetSystemAcpiGed.c.

ResetSystemLibAddressChangeEvent()

STATIC VOID ResetSystemLibAddressChangeEvent	(	IN EFI_EVENT	Event,
		IN VOID *	Context
	)

This is a notification function registered on EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event. It converts a pointer to a new virtual address.

Parameters

[in]	Event	Event whose notification function is being invoked.
[in]	Context	Pointer to the notification function's context

Definition at line 166 of file DxeResetSystemAcpiGed.c.

ResetSystemLibConstructor()

EFI_STATUS EFIAPI ResetSystemLibConstructor	(	IN EFI_HANDLE	ImageHandle,
		IN EFI_SYSTEM_TABLE *	SystemTable
	)

The constructor function to Register ACPI Table change event and Address Change Event.

Return values

EFI_SUCCESS

The constructor always returns RETURN_SUCCESS.

Definition at line 232 of file DxeResetSystemAcpiGed.c.

SetMemoryAttributesRunTime()

STATIC EFI_STATUS SetMemoryAttributesRunTime

(

UINTN

Address

)

Modifies the attributes to Runtime type for a page size memory region.

Parameters

BaseAddress

Specified start address

Return values

EFI_SUCCESS	The attributes were set for the memory region.
EFI_INVALID_PARAMETER	Length is zero.
EFI_UNSUPPORTED	The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length.
EFI_UNSUPPORTED	The bit mask of attributes is not support for the memory resource range specified by BaseAddress and Length.
EFI_ACCESS_DEFINED	The attributes for the memory resource range specified by BaseAddress and Length cannot be modified.
EFI_OUT_OF_RESOURCES	There are not enough system resources to modify the attributes of the memory resource range.
EFI_NOT_AVAILABLE_YET	The attributes cannot be set because CPU architectural protocol is not available yet.

Definition at line 38 of file DxeResetSystemAcpiGed.c.