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Vlv2DeviceRefCodePkg&Vlv2DevicePkg:Add sample WSMT table. 

This is an sample WSMT table, which we only
update BIT0 and BIT1 of Protections flags fields.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: lushifex <shifeix.a.lu@intel.com>
Reviewed-by: David Wei <david.wei@intel.com>
This commit is contained in:
Lu, ShifeiX A 2016-07-28 16:21:28 +08:00 committed by david wei
parent b52e697b2a
commit 2c855d3aaf
3 changed files with 75 additions and 1 deletions
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3
Vlv2DeviceRefCodePkg/AcpiTablesPCAT/AcpiTables.inf
View File

@ -5,7 +5,7 @@
# All .asi files tagged with "ToolCode="DUMMY"" in following file list are device description and are included
# by top level ASL file which will be dealed with by asl.exe application.
#
# Copyright (c) 1999 - 2015, Intel Corporation. All rights reserved
# Copyright (c) 1999 - 2016, 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 that accompanies this distribution.
@ -37,6 +37,7 @@
Mcfg/Mcfg.aslc
Hpet/Hpet.aslc
Lpit/Lpit.aslc
Wsmt/Wsmt.aslc
[Packages]

60
Vlv2DeviceRefCodePkg/AcpiTablesPCAT/Wsmt/Wsmt.aslc Normal file
View File

@ -0,0 +1,60 @@
/*++
Copyright (c) 2016, 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:
Wsmt.c
Abstract:
This file contains a structure definition for the Windows SMM Security
Mitigations Table (WSMT).
++*/
//
// Statements that include other files
//
#include "AcpiTablePlatform.h"
#include <IndustryStandard/WindowsSmmSecurityMitigationTable.h>
//
// WSMT Table definition
//
EFI_ACPI_WSMT_TABLE WSMT = {
EFI_ACPI_WINDOWS_SMM_SECURITY_MITIGATION_TABLE_SIGNATURE,
sizeof (EFI_ACPI_WSMT_TABLE),
EFI_WSMT_TABLE_REVISION,
//
// Checksum will be updated at runtime
//
0,
EFI_ACPI_OEM_ID, // OEMID is a 6 bytes long field
EFI_ACPI_OEM_TABLE_ID, // OEM table identification(8 bytes long)
EFI_ACPI_OEM_REVISION, // OEM revision
EFI_ACPI_CREATOR_ID, // ASL compiler vendor ID
EFI_ACPI_CREATOR_REVISION, // ASL compiler revision number
0x00000000, // Protection flag
};
VOID*
ReferenceAcpiTable (
VOID
)
{
//
// Reference the table being generated to prevent the optimizer from
// removing the data structure from the executable
//
return (VOID*)&WSMT;
}

13
Vlv2TbltDevicePkg/AcpiPlatform/AcpiPlatform.c
View File

@ -58,6 +58,7 @@ Abstract:
#include <PchAccess.h>
#include <Guid/Vlv2Variable.h>
#include <Guid/PlatformCpuInfo.h>
#include <IndustryStandard/WindowsSmmSecurityMitigationTable.h>
CHAR16 EfiPlatformCpuInfoVariable[] = L"PlatformCpuInfo";
@ -238,6 +239,7 @@ PlatformUpdateTables (
UINT8 TempVal;
EFI_ACPI_3_0_IO_APIC_STRUCTURE *IOApicType;
EFI_ACPI_3_0_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER *APICTableHeader;
EFI_ACPI_WSMT_TABLE *WsmtTable;
CurrPtr = NULL;
EndPtr = NULL;
@ -599,6 +601,17 @@ PlatformUpdateTables (
gBS->FreePool (OcurModelStringBuffer);
gBS->FreePool (OcurRefDataBlockBuffer);
break;
case EFI_ACPI_WINDOWS_SMM_SECURITY_MITIGATION_TABLE_SIGNATURE:
WsmtTable = (EFI_ACPI_WSMT_TABLE *) Table;
//
// Update Microsoft WSMT table Protections flags.
//
WsmtTable->ProtectionFlags = ((WsmtTable->ProtectionFlags) | (EFI_WSMT_PROTECTION_FLAGS_FIXED_COMM_BUFFERS | EFI_WSMT_PROTECTION_FLAGS_COMM_BUFFER_NESTED_PTR_PROTECTION ));
break;
default:
break;
}