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/** @file
Copyright (c) 2004 - 2014, 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 that 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.
Module Name:
SmmScriptSave.c
Abstract:
ScriptTableSave module at run time
--*/
#include "SmmScriptSave.h"
//
// internal functions
//
EFI_STATUS
BootScriptIoWrite (
IN EFI_SMM_SCRIPT_TABLE *ScriptTable,
IN VA_LIST Marker
);
EFI_STATUS
BootScriptPciCfgWrite (
IN EFI_SMM_SCRIPT_TABLE *ScriptTable,
IN VA_LIST Marker
);
VOID
SmmCopyMem (
IN UINT8 *Destination,
IN UINT8 *Source,
IN UINTN ByteCount
);
//
// Function implementations
//
EFI_STATUS
SmmBootScriptWrite (
IN OUT EFI_SMM_SCRIPT_TABLE *ScriptTable,
IN UINTN Type,
IN UINT16 OpCode,
...
)
{
EFI_STATUS Status;
VA_LIST Marker;
if (ScriptTable == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// Build script according to opcode
//
switch ( OpCode ) {
case EFI_BOOT_SCRIPT_IO_WRITE_OPCODE:
VA_START(Marker, OpCode);
Status = BootScriptIoWrite (ScriptTable, Marker);
VA_END(Marker);
break;
case EFI_BOOT_SCRIPT_PCI_CONFIG_WRITE_OPCODE:
VA_START(Marker, OpCode);
Status = BootScriptPciCfgWrite(ScriptTable, Marker);
VA_END(Marker);
break;
default:
Status = EFI_SUCCESS;
break;
}
return Status;
}
EFI_STATUS
SmmBootScriptCreateTable (
IN OUT EFI_SMM_SCRIPT_TABLE *ScriptTable,
IN UINTN Type
)
{
BOOT_SCRIPT_POINTERS Script;
UINT8 *Buffer;
if (ScriptTable == NULL) {
return EFI_INVALID_PARAMETER;
}
Buffer = (UINT8*) ((UINTN)(*ScriptTable));
//
// Fill Table Header
//
Script.Raw = Buffer;
Script.TableInfo->OpCode = EFI_BOOT_SCRIPT_TABLE_OPCODE;
Script.TableInfo->Length = sizeof(EFI_BOOT_SCRIPT_TABLE_HEADER);
Script.TableInfo->TableLength = sizeof(EFI_BOOT_SCRIPT_TABLE_HEADER);
//
// Update current table pointer
//
*ScriptTable = *ScriptTable + sizeof(EFI_BOOT_SCRIPT_TABLE_HEADER);
return EFI_SUCCESS;
}
EFI_STATUS
SmmBootScriptCloseTable (
IN EFI_SMM_SCRIPT_TABLE ScriptTableBase,
IN EFI_SMM_SCRIPT_TABLE ScriptTablePtr,
IN UINTN Type
)
{
BOOT_SCRIPT_POINTERS Script;
//
// Add final "termination" node to script table
//
Script.Raw = (UINT8*) ((UINTN)ScriptTablePtr);
Script.Terminate->OpCode = EFI_BOOT_SCRIPT_TERMINATE_OPCODE;
Script.Terminate->Length = sizeof (EFI_BOOT_SCRIPT_TERMINATE);
ScriptTablePtr += sizeof (EFI_BOOT_SCRIPT_TERMINATE);
//
// Update Table Header
//
Script.Raw = (UINT8*) ((UINTN)ScriptTableBase);
Script.TableInfo->OpCode = EFI_BOOT_SCRIPT_TABLE_OPCODE;
Script.TableInfo->Length = sizeof (EFI_BOOT_SCRIPT_TABLE_HEADER);
Script.TableInfo->TableLength = (UINT32)(ScriptTablePtr - ScriptTableBase);
return EFI_SUCCESS;
}
EFI_STATUS
BootScriptIoWrite (
IN EFI_SMM_SCRIPT_TABLE *ScriptTable,
IN VA_LIST Marker
)
{
BOOT_SCRIPT_POINTERS Script;
EFI_BOOT_SCRIPT_WIDTH Width;
UINTN Address;
UINTN Count;
UINT8 *Buffer;
UINTN NodeLength;
UINT8 WidthInByte;
Width = VA_ARG(Marker, EFI_BOOT_SCRIPT_WIDTH);
Address = VA_ARG(Marker, UINTN);
Count = VA_ARG(Marker, UINTN);
Buffer = VA_ARG(Marker, UINT8*);
WidthInByte = (UINT8)(0x01 << (Width & 0x03));
Script.Raw = (UINT8*) ((UINTN)(*ScriptTable));
NodeLength = sizeof (EFI_BOOT_SCRIPT_IO_WRITE) + (WidthInByte * Count);
//
// Build script data
//
Script.IoWrite->OpCode = EFI_BOOT_SCRIPT_IO_WRITE_OPCODE;
Script.IoWrite->Length = (UINT8)(NodeLength);
Script.IoWrite->Width = Width;
Script.IoWrite->Address = Address;
Script.IoWrite->Count = (UINT32)Count;
SmmCopyMem (
(UINT8*)(Script.Raw + sizeof (EFI_BOOT_SCRIPT_IO_WRITE)),
Buffer,
WidthInByte * Count
);
//
// Update Script table pointer
//
*ScriptTable = *ScriptTable + NodeLength;
return EFI_SUCCESS;
}
EFI_STATUS
BootScriptPciCfgWrite (
IN EFI_SMM_SCRIPT_TABLE *ScriptTable,
IN VA_LIST Marker
)
{
BOOT_SCRIPT_POINTERS Script;
EFI_BOOT_SCRIPT_WIDTH Width;
UINT64 Address;
UINTN Count;
UINT8 *Buffer;
UINTN NodeLength;
UINT8 WidthInByte;
Width = VA_ARG(Marker, EFI_BOOT_SCRIPT_WIDTH);
Address = VA_ARG(Marker, UINT64);
Count = VA_ARG(Marker, UINTN);
Buffer = VA_ARG(Marker, UINT8*);
WidthInByte = (UINT8)(0x01 << (Width & 0x03));
Script.Raw = (UINT8*) ((UINTN)(*ScriptTable));
NodeLength = sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_WRITE) + (WidthInByte * Count);
//
// Build script data
//
Script.PciWrite->OpCode = EFI_BOOT_SCRIPT_PCI_CONFIG_WRITE_OPCODE;
Script.PciWrite->Length = (UINT8)(NodeLength);
Script.PciWrite->Width = Width;
Script.PciWrite->Address = Address;
Script.PciWrite->Count = (UINT32)Count;
SmmCopyMem (
(UINT8*)(Script.Raw + sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_WRITE)),
Buffer,
WidthInByte * Count
);
//
// Update Script table pointer
//
*ScriptTable = *ScriptTable + NodeLength;
return EFI_SUCCESS;
}
VOID
SmmCopyMem (
IN UINT8 *Destination,
IN UINT8 *Source,
IN UINTN ByteCount
)
{
UINTN Index;
for (Index = 0; Index < ByteCount; Index++, Destination++, Source++) {
*Destination = *Source;
}
}
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