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arm-bsp/edk2-firmware: Add NT_FW_CONFIG to N1SDP to fix aborts when accessing virtual memory

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NT_FW_CONFIG DTB contains platform information passed by TF-A boot
stage. This information is used for Virtual memory map generation
during PEI phase and passed on to DXE phase as a HOB, where it is used
in ConfigurationManagerDxe.

Signed-off-by: Adam Johnston <adam.johnston@arm.com>
This commit is contained in:
Adam Johnston
2022-07-15 12:41:54 +00:00
parent 6481a473d8
commit 1abc39e269
2 changed files with 480 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta-arm-bsp/recipes-bsp/uefi/edk2-firmware-n1sdp.inc
+6
View File
@@ -11,6 +11,12 @@ COMPATIBLE_MACHINE = "n1sdp"
EFIDIR = "/EFI/BOOT"
EFI_BOOT_IMAGE = "bootaa64.efi"
FILESEXTRAPATHS:prepend := "${THISDIR}/files/edk2-platforms:"
SRC_URI:append = "\
file://add-nt-fw-config.patch;patchdir=edk2-platforms \
"
do_deploy:append() {
EFIPATH=$(echo "${EFIDIR}" | sed 's/\//\\/g')
printf 'FS2:%s\%s\n' "$EFIPATH" "${EFI_BOOT_IMAGE}" > ${DEPLOYDIR}/startup.nsh
meta-arm-bsp/recipes-bsp/uefi/files/edk2-platforms/add-nt-fw-config.patch
+474
View File
@@ -0,0 +1,474 @@
From cc58709b32d74273736886ccfc08e4723a436ea4 Mon Sep 17 00:00:00 2001
From: sahil <sahil@arm.com>
Date: Thu, 17 Mar 2022 16:28:05 +0530
Subject: [PATCH] Platform/ARM/N1sdp: Add support to parse NT_FW_CONFIG
NT_FW_CONFIG DTB contains platform information passed by
Tf-A boot stage.
This information is used for Virtual memory map generation
during PEI phase and passed on to DXE phase as a HOB, where
it is used in ConfigurationManagerDxe.
Upstream-Status: Pending
Signed-off-by: Adam Johnston <adam.johnston@arm.com>
Signed-off-by: sahil <sahil@arm.com>
Change-Id: Ib82571280bf1ca5febe5766e618de09e7b70bb02
---
.../ConfigurationManager.c | 24 ++--
.../ConfigurationManagerDxe.inf | 3 +-
.../ARM/NeoverseN1Soc/Include/NeoverseN1Soc.h | 16 +--
.../Library/PlatformLib/AArch64/Helper.S | 4 +-
.../Library/PlatformLib/PlatformLib.c | 12 +-
.../Library/PlatformLib/PlatformLib.inf | 8 +-
.../Library/PlatformLib/PlatformLibMem.c | 103 +++++++++++++++++-
Silicon/ARM/NeoverseN1Soc/NeoverseN1Soc.dec | 7 +-
8 files changed, 152 insertions(+), 25 deletions(-)
diff --git a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
index f50623ae3f..e023d47cfd 100644
--- a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
+++ b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
@@ -1,7 +1,7 @@
/** @file
Configuration Manager Dxe
- Copyright (c) 2021, ARM Limited. All rights reserved.<BR>
+ Copyright (c) 2021 - 2022, ARM Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -16,6 +16,7 @@
#include <IndustryStandard/SerialPortConsoleRedirectionTable.h>
#include <Library/ArmLib.h>
#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
#include <Library/IoLib.h>
#include <Library/PcdLib.h>
#include <Library/UefiBootServicesTableLib.h>
@@ -28,6 +29,7 @@
#include "Platform.h"
extern struct EFI_ACPI_HETEROGENEOUS_MEMORY_ATTRIBUTE_TABLE Hmat;
+static NEOVERSEN1SOC_PLAT_INFO *PlatInfo;
/** The platform configuration repository information.
*/
@@ -1242,13 +1244,11 @@ InitializePlatformRepository (
IN EDKII_PLATFORM_REPOSITORY_INFO * CONST PlatRepoInfo
)
{
- NEOVERSEN1SOC_PLAT_INFO *PlatInfo;
UINT64 Dram2Size;
UINT64 RemoteDdrSize;
RemoteDdrSize = 0;
- PlatInfo = (NEOVERSEN1SOC_PLAT_INFO *)NEOVERSEN1SOC_PLAT_INFO_STRUCT_BASE;
Dram2Size = ((PlatInfo->LocalDdrSize - 2) * SIZE_1GB);
PlatRepoInfo->MemAffInfo[LOCAL_DDR_REGION2].Length = Dram2Size;
@@ -1512,7 +1512,6 @@ GetGicCInfo (
)
{
EDKII_PLATFORM_REPOSITORY_INFO * PlatformRepo;
- NEOVERSEN1SOC_PLAT_INFO *PlatInfo;
UINT32 TotalObjCount;
UINT32 ObjIndex;
@@ -1523,7 +1522,6 @@ GetGicCInfo (
}
PlatformRepo = This->PlatRepoInfo;
- PlatInfo = (NEOVERSEN1SOC_PLAT_INFO *)NEOVERSEN1SOC_PLAT_INFO_STRUCT_BASE;
if (PlatInfo->MultichipMode == 1) {
TotalObjCount = PLAT_CPU_COUNT * 2;
@@ -1623,7 +1621,6 @@ GetStandardNameSpaceObject (
{
EFI_STATUS Status;
EDKII_PLATFORM_REPOSITORY_INFO * PlatformRepo;
- NEOVERSEN1SOC_PLAT_INFO *PlatInfo;
UINT32 AcpiTableCount;
if ((This == NULL) || (CmObject == NULL)) {
@@ -1634,7 +1631,7 @@ GetStandardNameSpaceObject (
Status = EFI_NOT_FOUND;
PlatformRepo = This->PlatRepoInfo;
- PlatInfo = (NEOVERSEN1SOC_PLAT_INFO *)NEOVERSEN1SOC_PLAT_INFO_STRUCT_BASE;
+
AcpiTableCount = ARRAY_SIZE (PlatformRepo->CmAcpiTableList);
if (PlatInfo->MultichipMode == 0)
AcpiTableCount -= 1;
@@ -1697,7 +1694,6 @@ GetArmNameSpaceObject (
{
EFI_STATUS Status;
EDKII_PLATFORM_REPOSITORY_INFO * PlatformRepo;
- NEOVERSEN1SOC_PLAT_INFO *PlatInfo;
UINT32 GicRedistCount;
UINT32 GicCpuCount;
UINT32 ProcHierarchyInfoCount;
@@ -1718,8 +1714,6 @@ GetArmNameSpaceObject (
Status = EFI_NOT_FOUND;
PlatformRepo = This->PlatRepoInfo;
- // Probe for multi chip information
- PlatInfo = (NEOVERSEN1SOC_PLAT_INFO *)NEOVERSEN1SOC_PLAT_INFO_STRUCT_BASE;
if (PlatInfo->MultichipMode == 1) {
GicRedistCount = 2;
GicCpuCount = PLAT_CPU_COUNT * 2;
@@ -2162,8 +2156,18 @@ ConfigurationManagerDxeInitialize (
IN EFI_SYSTEM_TABLE * SystemTable
)
{
+ VOID *PlatInfoHob;
EFI_STATUS Status;
+ PlatInfoHob = GetFirstGuidHob (&gArmNeoverseN1SocPlatformInfoDescriptorGuid);
+
+ if (PlatInfoHob == NULL) {
+ DEBUG ((DEBUG_ERROR, "Platform HOB is NULL\n"));
+ return EFI_NOT_FOUND;
+ }
+
+ PlatInfo = (NEOVERSEN1SOC_PLAT_INFO *)GET_GUID_HOB_DATA (PlatInfoHob);
+
// Initialize the Platform Configuration Repository before installing the
// Configuration Manager Protocol
Status = InitializePlatformRepository (
diff --git a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
index 4f8e7f1302..fb59c29501 100644
--- a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
+++ b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
@@ -1,7 +1,7 @@
## @file
# Configuration Manager Dxe
#
-# Copyright (c) 2021, ARM Limited. All rights reserved.<BR>
+# Copyright (c) 2021 - 2022, ARM Limited. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
@@ -42,6 +42,7 @@
[LibraryClasses]
ArmPlatformLib
+ HobLib
PrintLib
UefiBootServicesTableLib
UefiDriverEntryPoint
diff --git a/Silicon/ARM/NeoverseN1Soc/Include/NeoverseN1Soc.h b/Silicon/ARM/NeoverseN1Soc/Include/NeoverseN1Soc.h
index 097160c7e2..63cebaf0e0 100644
--- a/Silicon/ARM/NeoverseN1Soc/Include/NeoverseN1Soc.h
+++ b/Silicon/ARM/NeoverseN1Soc/Include/NeoverseN1Soc.h
@@ -1,6 +1,6 @@
/** @file
*
-* Copyright (c) 2018 - 2020, ARM Limited. All rights reserved.
+* Copyright (c) 2018 - 2022, ARM Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-2-Clause-Patent
*
@@ -41,11 +41,6 @@
#define NEOVERSEN1SOC_EXP_PERIPH_BASE0 0x1C000000
#define NEOVERSEN1SOC_EXP_PERIPH_BASE0_SZ 0x1300000
-// Base address to a structure of type NEOVERSEN1SOC_PLAT_INFO which is
-// pre-populated by a earlier boot stage
-#define NEOVERSEN1SOC_PLAT_INFO_STRUCT_BASE (NEOVERSEN1SOC_NON_SECURE_SRAM_BASE + \
- 0x00008000)
-
/*
* Platform information structure stored in Non-secure SRAM. Platform
* information are passed from the trusted firmware with the below structure
@@ -55,12 +50,17 @@
typedef struct {
/*! 0 - Single Chip, 1 - Chip to Chip (C2C) */
UINT8 MultichipMode;
- /*! Slave count in C2C mode */
- UINT8 SlaveCount;
+ /*! Secondary chip count in C2C mode */
+ UINT8 SecondaryChipCount;
/*! Local DDR memory size in GigaBytes */
UINT8 LocalDdrSize;
/*! Remote DDR memory size in GigaBytes */
UINT8 RemoteDdrSize;
} NEOVERSEN1SOC_PLAT_INFO;
+// NT_FW_CONFIG DT structure
+typedef struct {
+ UINT64 NtFwConfigDtAddr;
+} NEOVERSEN1SOC_NT_FW_CONFIG_INFO_PPI;
+
#endif
diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S
index 8d2069dea8..88ed640d29 100644
--- a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S
+++ b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S
@@ -1,6 +1,6 @@
/** @file
*
-* Copyright (c) 2019 - 2020, ARM Limited. All rights reserved.
+* Copyright (c) 2019 - 2022, ARM Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-2-Clause-Patent
*
@@ -25,6 +25,8 @@ GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
// the UEFI firmware through the CPU registers.
//
ASM_PFX(ArmPlatformPeiBootAction):
+ adr x10, NtFwConfigDtBlob
+ str x0, [x10]
ret
//
diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.c b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.c
index c0effd37f3..fabe902cd0 100644
--- a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.c
+++ b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.c
@@ -1,6 +1,6 @@
/** @file
- Copyright (c) 2018-2021, ARM Limited. All rights reserved.<BR>
+ Copyright (c) 2018 - 2022, ARM Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -8,8 +8,12 @@
#include <Library/ArmPlatformLib.h>
#include <Library/BaseLib.h>
+#include <NeoverseN1Soc.h>
#include <Ppi/ArmMpCoreInfo.h>
+UINT64 NtFwConfigDtBlob;
+STATIC NEOVERSEN1SOC_NT_FW_CONFIG_INFO_PPI mNtFwConfigDtInfoPpi;
+
STATIC ARM_CORE_INFO mCoreInfoTable[] = {
{ 0x0, 0x0 }, // Cluster 0, Core 0
{ 0x0, 0x1 }, // Cluster 0, Core 1
@@ -46,6 +50,7 @@ ArmPlatformInitialize (
IN UINTN MpId
)
{
+ mNtFwConfigDtInfoPpi.NtFwConfigDtAddr = NtFwConfigDtBlob;
return RETURN_SUCCESS;
}
@@ -80,6 +85,11 @@ EFI_PEI_PPI_DESCRIPTOR gPlatformPpiTable[] = {
EFI_PEI_PPI_DESCRIPTOR_PPI,
&gArmMpCoreInfoPpiGuid,
&mMpCoreInfoPpi
+ },
+ {
+ EFI_PEI_PPI_DESCRIPTOR_PPI,
+ &gNtFwConfigDtInfoPpiGuid,
+ &mNtFwConfigDtInfoPpi
}
};
diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.inf b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.inf
index 96e590cdd8..6f9c9d5ab6 100644
--- a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.inf
+++ b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.inf
@@ -1,7 +1,7 @@
## @file
# Platform Library for N1Sdp.
#
-# Copyright (c) 2018-2021, ARM Limited. All rights reserved.<BR>
+# Copyright (c) 2018 - 2022, ARM Limited. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
@@ -18,10 +18,14 @@
[Packages]
ArmPkg/ArmPkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
+ EmbeddedPkg/EmbeddedPkg.dec
MdeModulePkg/MdeModulePkg.dec
MdePkg/MdePkg.dec
Silicon/ARM/NeoverseN1Soc/NeoverseN1Soc.dec
+[LibraryClasses]
+ FdtLib
+
[Sources.common]
PlatformLibMem.c
PlatformLib.c
@@ -59,7 +63,9 @@
gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress
[Guids]
+ gArmNeoverseN1SocPlatformInfoDescriptorGuid
gEfiHobListGuid ## CONSUMES ## SystemTable
[Ppis]
gArmMpCoreInfoPpiGuid
+ gNtFwConfigDtInfoPpiGuid
diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c
index 339fa07b32..b58bda4b76 100644
--- a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c
+++ b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c
@@ -1,6 +1,6 @@
/** @file
- Copyright (c) 2018 - 2021, ARM Limited. All rights reserved.<BR>
+ Copyright (c) 2018 - 2022, ARM Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -10,11 +10,95 @@
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include <Library/MemoryAllocationLib.h>
+#include <Library/PeiServicesLib.h>
+#include <libfdt.h>
#include <NeoverseN1Soc.h>
// The total number of descriptors, including the final "end-of-table" descriptor.
#define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS 19
+/** A helper function to locate the NtFwConfig PPI and get the base address of
+ NT_FW_CONFIG DT from which values are obtained using FDT helper functions.
+
+ @param [out] plat_info Pointer to the NeoverseN1Soc PLATFORM_INFO HOB
+
+ @retval EFI_SUCCESS Success.
+ returns EFI_INVALID_PARAMETER A parameter is invalid.
+**/
+EFI_STATUS
+GetNeoverseN1SocPlatInfo (
+ OUT NEOVERSEN1SOC_PLAT_INFO *plat_info
+ )
+{
+ CONST UINT32 *Property;
+ INT32 Offset;
+ CONST VOID *NtFwCfgDtBlob;
+ NEOVERSEN1SOC_NT_FW_CONFIG_INFO_PPI *NtFwConfigInfoPpi;
+ EFI_STATUS Status;
+
+ Status = PeiServicesLocatePpi (
+ &gNtFwConfigDtInfoPpiGuid,
+ 0,
+ NULL,
+ (VOID **)&NtFwConfigInfoPpi
+ );
+
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "PeiServicesLocatePpi failed with error %r\n",
+ Status
+ ));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ NtFwCfgDtBlob = (VOID *)(UINTN)NtFwConfigInfoPpi->NtFwConfigDtAddr;
+ if (fdt_check_header (NtFwCfgDtBlob) != 0) {
+ DEBUG ((DEBUG_ERROR, "Invalid DTB file %p passed\n", NtFwCfgDtBlob));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Offset = fdt_subnode_offset (NtFwCfgDtBlob, 0, "platform-info");
+ if (Offset == -FDT_ERR_NOTFOUND) {
+ DEBUG ((DEBUG_ERROR, "Invalid DTB : platform-info node not found\n"));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Property = fdt_getprop (NtFwCfgDtBlob, Offset, "local-ddr-size", NULL);
+ if (Property == NULL) {
+ DEBUG ((DEBUG_ERROR, "local-ddr-size property not found\n"));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ plat_info->LocalDdrSize = fdt32_to_cpu (*Property);
+
+ Property = fdt_getprop (NtFwCfgDtBlob, Offset, "remote-ddr-size", NULL);
+ if (Property == NULL) {
+ DEBUG ((DEBUG_ERROR, "remote-ddr-size property not found\n"));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ plat_info->RemoteDdrSize = fdt32_to_cpu (*Property);
+
+ Property = fdt_getprop (NtFwCfgDtBlob, Offset, "secondary-chip-count", NULL);
+ if (Property == NULL) {
+ DEBUG ((DEBUG_ERROR, "secondary-chip-count property not found\n"));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ plat_info->SecondaryChipCount = fdt32_to_cpu (*Property);
+
+ Property = fdt_getprop (NtFwCfgDtBlob, Offset, "multichip-mode", NULL);
+ if (Property == NULL) {
+ DEBUG ((DEBUG_ERROR, "multichip-mode property not found\n"));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ plat_info->MultichipMode = fdt32_to_cpu (*Property);
+
+ return EFI_SUCCESS;
+}
+
/**
Returns the Virtual Memory Map of the platform.
@@ -36,9 +120,24 @@ ArmPlatformGetVirtualMemoryMap (
NEOVERSEN1SOC_PLAT_INFO *PlatInfo;
UINT64 DramBlock2Size;
UINT64 RemoteDdrSize;
+ EFI_STATUS Status;
Index = 0;
- PlatInfo = (NEOVERSEN1SOC_PLAT_INFO *)NEOVERSEN1SOC_PLAT_INFO_STRUCT_BASE;
+
+ // Create platform info HOB
+ PlatInfo = (NEOVERSEN1SOC_PLAT_INFO *)BuildGuidHob (
+ &gArmNeoverseN1SocPlatformInfoDescriptorGuid,
+ sizeof (NEOVERSEN1SOC_PLAT_INFO)
+ );
+
+ if (PlatInfo == NULL) {
+ DEBUG ((DEBUG_ERROR, "Platform HOB is NULL\n"));
+ ASSERT (FALSE);
+ return;
+ }
+
+ Status = GetNeoverseN1SocPlatInfo (PlatInfo);
+ ASSERT (Status == 0);
DramBlock2Size = ((UINT64)(PlatInfo->LocalDdrSize -
NEOVERSEN1SOC_DRAM_BLOCK1_SIZE / SIZE_1GB) *
(UINT64)SIZE_1GB);
diff --git a/Silicon/ARM/NeoverseN1Soc/NeoverseN1Soc.dec b/Silicon/ARM/NeoverseN1Soc/NeoverseN1Soc.dec
index d59f25a5b9..4dea8fe1e8 100644
--- a/Silicon/ARM/NeoverseN1Soc/NeoverseN1Soc.dec
+++ b/Silicon/ARM/NeoverseN1Soc/NeoverseN1Soc.dec
@@ -1,7 +1,7 @@
## @file
# Describes the entire platform configuration.
#
-# Copyright (c) 2018 - 2021, ARM Limited. All rights reserved.<BR>
+# Copyright (c) 2018 - 2022, ARM Limited. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
@@ -22,6 +22,8 @@
Include # Root include for the package
[Guids.common]
+ # ARM NeoverseN1Soc Platform Info descriptor
+ gArmNeoverseN1SocPlatformInfoDescriptorGuid = { 0x095cb024, 0x1e00, 0x4d6f, { 0xaa, 0x34, 0x4a, 0xf8, 0xaf, 0x0e, 0xad, 0x99 } }
gArmNeoverseN1SocTokenSpaceGuid = { 0xab93eb78, 0x60d7, 0x4099, { 0xac, 0xeb, 0x6d, 0xb5, 0x02, 0x58, 0x7c, 0x24 } }
[PcdsFixedAtBuild]
@@ -83,3 +85,6 @@
gArmNeoverseN1SocTokenSpaceGuid.PcdRemotePcieMmio32Translation|0x40000000000|UINT64|0x0000004F
gArmNeoverseN1SocTokenSpaceGuid.PcdRemotePcieMmio64Translation|0x40000000000|UINT64|0x00000050
gArmNeoverseN1SocTokenSpaceGuid.PcdRemotePcieSegmentNumber|2|UINT32|0x00000051
+
+[Ppis]
+ gNtFwConfigDtInfoPpiGuid = { 0xb50dee0e, 0x577f, 0x47fb, { 0x83, 0xd0, 0x41, 0x78, 0x61, 0x8b, 0x33, 0x8a } }
--
2.17.1