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/** @file
SMM S3 handler Driver implementation file.
Copyright (c) 1999 - 2017, Intel Corporation. All rights reserved.<BR>
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.
**/
#include "SmmPlatform.h"
extern UINT16 mAcpiBaseAddr;
EFI_STATUS
SaveRuntimeScriptTable (
IN EFI_SMM_SYSTEM_TABLE2 *Smst
)
{
UINT16 Data16;
UINT8 Data8;
UINT32 DwordData;
UINT32 PciOffset;
IoWrite8 (0x80, 0x53);
for (PciOffset = 0x10; PciOffset < 0x0cf; PciOffset += 4) {
DwordData = MmioRead32 (MmPciAddress (0, SA_IGD_BUS, SA_IGD_DEV, SA_IGD_FUN_0, PciOffset));
S3BootScriptSaveMemWrite (
S3BootScriptWidthUint32,
MmPciAddress (0, SA_IGD_BUS, SA_IGD_DEV, SA_IGD_FUN_0, PciOffset),
1,
&DwordData
);
}
IoWrite8 (0x80, 0x53);
//
// Save I/O ports to S3 script table
//
//
// Selftest KBC
//
Data8 = 0xAA;
S3BootScriptSaveIoWrite (
S3BootScriptWidthUint8,
0x64,
(UINTN) 1,
&Data8
);
//
// Save B_ICH_TCO_CNT_LOCK so it will be done on S3 resume path.
//
Data16 = IoRead16 (mAcpiBaseAddr + R_TCO_CNT);
S3BootScriptSaveIoWrite (
S3BootScriptWidthUint16,
mAcpiBaseAddr + R_TCO_CNT,
1,
&Data16
);
return EFI_SUCCESS;
}
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