audk/OvmfPkg/SmmControl2Dxe/SmiFeatures.h

47 lines
1.3 KiB
C

/**@file
Negotiate SMI features with QEMU, and configure UefiCpuPkg/PiSmmCpuDxeSmm
accordingly.
Copyright (C) 2016-2017, Red Hat, Inc.
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.
**/
#ifndef __SMI_FEATURES_H__
#define __SMI_FEATURES_H__
#include <Protocol/S3SaveState.h>
/**
Negotiate SMI features with QEMU.
@retval FALSE If SMI feature negotiation is not supported by QEMU. This is
not an error, it just means that SaveSmiFeatures() should not
be called.
@retval TRUE SMI feature negotiation is supported, and it has completed
successfully as well. (Failure to negotiate is a fatal error
and the function never returns in that case.)
**/
BOOLEAN
NegotiateSmiFeatures (
VOID
);
/**
Append a boot script fragment that will re-select the previously negotiated
SMI features during S3 resume.
**/
VOID
SaveSmiFeatures (
VOID
);
#endif