SmmIoLib.h File Reference

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Functions
BOOLEAN EFIAPI	SmmIsMmioValid (IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, IN EFI_GUID *Owner OPTIONAL)

Detailed Description

Provides services for SMM IO Operation.

The SMM IO Library provides function for checking if IO resource is accessible inside of SMM.

Copyright (c) 2017, Intel Corporation. All rights reserved.
This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this distribution. The full text of the license may be found at http://opensource.org/licenses/bsd-license.php

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

Function Documentation

SmmIsMmioValid()

BOOLEAN EFIAPI SmmIsMmioValid	(	IN EFI_PHYSICAL_ADDRESS	BaseAddress,
		IN UINT64	Length,
		IN EFI_GUID *Owner	OPTIONAL
	)

This function check if the MMIO resource is valid per processor architecture and valid per platform design.

Parameters

BaseAddress	The MMIO start address to be checked.
Length	The MMIO length to be checked.
Owner	A GUID representing the owner of the resource. This GUID may be used by producer to correlate the device ownership of the resource. NULL means no specific owner.

Return values

TRUE	This MMIO resource is valid per processor architecture and valid per platform design.
FALSE	This MMIO resource is not valid per processor architecture or valid per platform design.