DxeAcpiPlatformLib.c File Reference

#include <Library/AcpiPlatformLib.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>

Go to the source code of this file.

Functions
EFI_STATUS EFIAPI	GetAcpiRsdpFromMemory (IN UINTN StartAddress, IN UINTN EndAddress, OUT EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER **RsdpPtr)
EFI_STATUS EFIAPI	InstallAcpiTablesFromRsdp (IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol, IN EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp)

Detailed Description

OVMF ACPI support

Copyright (C) 2021, Red Hat, Inc. Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.
Copyright (c) 2012, Bei Guan gbtju.nosp@m.85@g.nosp@m.mail..nosp@m.com

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

Definition in file DxeAcpiPlatformLib.c.

Function Documentation

GetAcpiRsdpFromMemory()

EFI_STATUS EFIAPI GetAcpiRsdpFromMemory	(	IN UINTN	StartAddress,
		IN UINTN	EndAddress,
		OUT EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER **	RsdpPtr
	)

Searches and returns the address of the ACPI Root System Description Pointer (RSDP) in system memory.

Parameters

StartAddress	Start address of search range.
EndAddress	End address of search range.
RsdpPtr	Return pointer to RSDP.

Return values

EFI_SUCCESS	RSDP successfully found.
EFI_NOT_FOUND	Couldn't find RSDP.
EFI_ABORTED	Invalid RSDP found.

Definition at line 18 of file DxeAcpiPlatformLib.c.

InstallAcpiTablesFromRsdp()

EFI_STATUS EFIAPI InstallAcpiTablesFromRsdp	(	IN EFI_ACPI_TABLE_PROTOCOL *	AcpiProtocol,
		IN EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER *	Rsdp
	)

Get Acpi tables from the RSDP structure. And installs ACPI tables into the RSDT/XSDT using InstallAcpiTable. Some signature of the installed ACPI tables are: FACP, APIC, HPET, WAET, SSDT, FACS, DSDT.

Parameters

AcpiProtocol

Protocol instance pointer.

Returns

EFI_SUCCESS The table was successfully inserted.

EFI_INVALID_PARAMETER Either AcpiTableBuffer is NULL, TableHandle is NULL, or AcpiTableBufferSize and the size field embedded in the ACPI table pointed to by AcpiTableBuffer are not in sync.

EFI_OUT_OF_RESOURCES Insufficient resources exist to complete the request.

Definition at line 71 of file DxeAcpiPlatformLib.c.