* [edk2-platforms][PATCH v4 1/1] MinPlatformPkg: Add FspNvsBuffer compression option
@ 2023-05-10 15:02 Michael Kubacki
2023-05-10 15:20 ` Isaac Oram
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Michael Kubacki @ 2023-05-10 15:02 UTC (permalink / raw)
To: devel
Cc: Chasel Chiu, Nate DeSimone, Isaac Oram, Liming Gao, Eric Dong,
Raghava Gudla
From: Michael Kubacki <michael.kubacki@microsoft.com>
Adds a PCD called "PcdEnableCompressedFspNvsBuffer" that allows the
"FspNvsBuffer" UEFI variable data to be saved as compressed data.
Especially due to the nature of the data saved in this variable, it
compresses well. For example, it has been found to reduce ~63KB
of data to ~13KB. Boot time impact has been found to be negligible.
The default value is FALSE to keep default behavior consistent.
Decompression can be performed on the variable data using the
standard UefiDecompressLib.
Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Isaac Oram <isaac.w.oram@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Raghava Gudla <raghava.gudla@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
---
Notes:
v4:
- Rebase onto 42a677e992d2
- Add CompressLib to MinPlatformPkg.dsc as well
v3:
- Rebase onto 7ac91ec277db
- Add CompressLib instance to CoreCommonLib.dsc
v2: Rebase onto 9769bf28d1fc
Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.c | 62 ++++++++++++++++----
Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.inf | 4 ++
Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc | 1 +
Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec | 6 ++
Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc | 1 +
5 files changed, 61 insertions(+), 13 deletions(-)
diff --git a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.c b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.c
index 0215e8eeddfb..95b8cef8b32b 100644
--- a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.c
+++ b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.c
@@ -3,6 +3,7 @@
exists, and saves the data to nvRAM.
Copyright (c) 2017 - 2022, Intel Corporation. All rights reserved.<BR>
+Copyright (c) Microsoft Corporation.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@@ -10,6 +11,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include <Base.h>
#include <Uefi.h>
#include <Library/BaseLib.h>
+#include <Library/CompressLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/HobLib.h>
@@ -19,6 +21,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include <Library/BaseMemoryLib.h>
#include <Library/LargeVariableReadLib.h>
#include <Library/LargeVariableWriteLib.h>
+#include <Library/PcdLib.h>
#include <Library/VariableWriteLib.h>
#include <Guid/FspNonVolatileStorageHob2.h>
@@ -38,20 +41,26 @@ SaveMemoryConfigEntryPoint (
IN EFI_SYSTEM_TABLE *SystemTable
)
{
- EFI_STATUS Status;
- EFI_HOB_GUID_TYPE *GuidHob;
- VOID *HobData;
- VOID *VariableData;
- UINTN DataSize;
- UINTN BufferSize;
- BOOLEAN DataIsIdentical;
+ EFI_STATUS Status;
+ EFI_HOB_GUID_TYPE *GuidHob;
+ VOID *HobData;
+ VOID *VariableData;
+ UINTN DataSize;
+ UINTN BufferSize;
+ BOOLEAN DataIsIdentical;
+ VOID *CompressedData;
+ UINT64 CompressedSize;
+ UINTN CompressedAllocationPages;
- DataSize = 0;
- BufferSize = 0;
- VariableData = NULL;
- GuidHob = NULL;
- HobData = NULL;
- DataIsIdentical = FALSE;
+ DataSize = 0;
+ BufferSize = 0;
+ VariableData = NULL;
+ GuidHob = NULL;
+ HobData = NULL;
+ DataIsIdentical = FALSE;
+ CompressedData = NULL;
+ CompressedSize = 0;
+ CompressedAllocationPages = 0;
//
// Search for the Memory Configuration GUID HOB. If it is not present, then
@@ -73,6 +82,29 @@ SaveMemoryConfigEntryPoint (
}
}
+ if (PcdGetBool (PcdEnableCompressedFspNvsBuffer)) {
+ if (DataSize > 0) {
+ CompressedAllocationPages = EFI_SIZE_TO_PAGES (DataSize);
+ CompressedData = AllocatePages (CompressedAllocationPages);
+ if (CompressedData == NULL) {
+ DEBUG ((DEBUG_ERROR, "[%a] - Failed to allocate compressed data buffer.\n", __FUNCTION__));
+ ASSERT_EFI_ERROR (EFI_OUT_OF_RESOURCES);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ CompressedSize = EFI_PAGES_TO_SIZE (CompressedAllocationPages);
+ Status = Compress (HobData, DataSize, CompressedData, &CompressedSize);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "[%a] - failed to compress data. Status = %r\n", __FUNCTION__, Status));
+ ASSERT_EFI_ERROR (Status);
+ return Status;
+ }
+ }
+
+ HobData = CompressedData;
+ DataSize = (UINTN)CompressedSize;
+ }
+
if (HobData != NULL) {
DEBUG ((DEBUG_INFO, "FspNvsHob.NvsDataLength:%d\n", DataSize));
DEBUG ((DEBUG_INFO, "FspNvsHob.NvsDataPtr : 0x%x\n", HobData));
@@ -136,6 +168,10 @@ SaveMemoryConfigEntryPoint (
DEBUG((DEBUG_ERROR, "Memory S3 Data HOB was not found\n"));
}
+ if (CompressedData != NULL) {
+ FreePages (CompressedData, CompressedAllocationPages);
+ }
+
//
// This driver does not produce any protocol services, so always unload it.
//
diff --git a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.inf b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.inf
index 61e85a658693..0f12deb131ca 100644
--- a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.inf
+++ b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.inf
@@ -26,6 +26,7 @@ [LibraryClasses]
LargeVariableReadLib
LargeVariableWriteLib
BaseLib
+ CompressLib
[Packages]
MdePkg/MdePkg.dec
@@ -45,6 +46,9 @@ [Guids]
gFspNonVolatileStorageHob2Guid ## CONSUMES
gFspNvsBufferVariableGuid ## PRODUCES
+[Pcd]
+ gMinPlatformPkgTokenSpaceGuid.PcdEnableCompressedFspNvsBuffer
+
[Depex]
gEfiVariableArchProtocolGuid AND
gEfiVariableWriteArchProtocolGuid
\ No newline at end of file
diff --git a/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc b/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
index 5ce21cf31e17..dfe7d836d32a 100644
--- a/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
+++ b/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
@@ -147,6 +147,7 @@ [LibraryClasses.common]
BmpSupportLib|MdeModulePkg/Library/BaseBmpSupportLib/BaseBmpSupportLib.inf
LargeVariableReadLib|MinPlatformPkg/Library/BaseLargeVariableLib/BaseLargeVariableReadLib.inf
LargeVariableWriteLib|MinPlatformPkg/Library/BaseLargeVariableLib/BaseLargeVariableWriteLib.inf
+ CompressLib|MinPlatformPkg/Library/CompressLib/CompressLib.inf
#
# CryptLib
diff --git a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
index 784abb828e76..45c75f8ec2c9 100644
--- a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
+++ b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
@@ -311,6 +311,12 @@ [PcdsFixedAtBuild, PcdsPatchableInModule, PcdsDynamic, PcdsDynamicEx]
gMinPlatformPkgTokenSpaceGuid.PcdPlatformMemoryCheckLevel|0|UINT32|0x30000009
+ ## Controls whether the FSP NVS buffer is saved as compressed data.
+ # Data compression can significantly reduce variable storage usage for FSP NVS buffer data.
+ # Platforms that choose to compress the data will need to decompress the variable data upon
+ # extraction.
+ gMinPlatformPkgTokenSpaceGuid.PcdEnableCompressedFspNvsBuffer|FALSE|BOOLEAN|0x30000010
+
## This PCD is to control which device is the potential trusted console input device.<BR><BR>
# For example:<BR>
# USB Short Form: UsbHID(0xFFFF,0xFFFF,0x1,0x1)<BR>
diff --git a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
index 90127c16b59e..087fa48dd00a 100644
--- a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
+++ b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
@@ -101,6 +101,7 @@ [LibraryClasses.common.DXE_DRIVER]
#
# DXE phase common
#
+ CompressLib|MinPlatformPkg/Library/CompressLib/CompressLib.inf
FspWrapperPlatformLib|MinPlatformPkg/FspWrapper/Library/DxeFspWrapperPlatformLib/DxeFspWrapperPlatformLib.inf
TestPointCheckLib|MinPlatformPkg/Test/Library/TestPointCheckLib/DxeTestPointCheckLib.inf
TestPointLib|MinPlatformPkg/Test/Library/TestPointLib/DxeTestPointLib.inf
--
2.40.1.windows.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [edk2-platforms][PATCH v4 1/1] MinPlatformPkg: Add FspNvsBuffer compression option
2023-05-10 15:02 [edk2-platforms][PATCH v4 1/1] MinPlatformPkg: Add FspNvsBuffer compression option Michael Kubacki
@ 2023-05-10 15:20 ` Isaac Oram
2023-05-10 15:47 ` [edk2-devel] " Chiu, Chasel
2023-05-10 15:57 ` Chiu, Chasel
2 siblings, 0 replies; 4+ messages in thread
From: Isaac Oram @ 2023-05-10 15:20 UTC (permalink / raw)
To: mikuback@linux.microsoft.com, devel@edk2.groups.io
Cc: Chiu, Chasel, Desimone, Nathaniel L, Gao, Liming, Dong, Eric,
Gudla, Raghava
Reviewed-by: Isaac Oram <isaac.w.oram@intel.com>
-----Original Message-----
From: mikuback@linux.microsoft.com <mikuback@linux.microsoft.com>
Sent: Wednesday, May 10, 2023 8:02 AM
To: devel@edk2.groups.io
Cc: Chiu, Chasel <chasel.chiu@intel.com>; Desimone, Nathaniel L <nathaniel.l.desimone@intel.com>; Oram, Isaac W <isaac.w.oram@intel.com>; Gao, Liming <gaoliming@byosoft.com.cn>; Dong, Eric <eric.dong@intel.com>; Gudla, Raghava <raghava.gudla@intel.com>
Subject: [edk2-platforms][PATCH v4 1/1] MinPlatformPkg: Add FspNvsBuffer compression option
From: Michael Kubacki <michael.kubacki@microsoft.com>
Adds a PCD called "PcdEnableCompressedFspNvsBuffer" that allows the "FspNvsBuffer" UEFI variable data to be saved as compressed data.
Especially due to the nature of the data saved in this variable, it compresses well. For example, it has been found to reduce ~63KB of data to ~13KB. Boot time impact has been found to be negligible.
The default value is FALSE to keep default behavior consistent.
Decompression can be performed on the variable data using the standard UefiDecompressLib.
Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Isaac Oram <isaac.w.oram@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Raghava Gudla <raghava.gudla@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
---
Notes:
v4:
- Rebase onto 42a677e992d2
- Add CompressLib to MinPlatformPkg.dsc as well
v3:
- Rebase onto 7ac91ec277db
- Add CompressLib instance to CoreCommonLib.dsc
v2: Rebase onto 9769bf28d1fc
Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.c | 62 ++++++++++++++++----
Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.inf | 4 ++
Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc | 1 +
Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec | 6 ++
Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc | 1 +
5 files changed, 61 insertions(+), 13 deletions(-)
diff --git a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.c b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.c
index 0215e8eeddfb..95b8cef8b32b 100644
--- a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.c
+++ b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemo
+++ ryConfig.c
@@ -3,6 +3,7 @@
exists, and saves the data to nvRAM.
Copyright (c) 2017 - 2022, Intel Corporation. All rights reserved.<BR>
+Copyright (c) Microsoft Corporation.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@@ -10,6 +11,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent #include <Base.h> #include <Uefi.h> #include <Library/BaseLib.h>
+#include <Library/CompressLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/HobLib.h>
@@ -19,6 +21,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent #include <Library/BaseMemoryLib.h> #include <Library/LargeVariableReadLib.h> #include <Library/LargeVariableWriteLib.h>
+#include <Library/PcdLib.h>
#include <Library/VariableWriteLib.h>
#include <Guid/FspNonVolatileStorageHob2.h>
@@ -38,20 +41,26 @@ SaveMemoryConfigEntryPoint (
IN EFI_SYSTEM_TABLE *SystemTable
)
{
- EFI_STATUS Status;
- EFI_HOB_GUID_TYPE *GuidHob;
- VOID *HobData;
- VOID *VariableData;
- UINTN DataSize;
- UINTN BufferSize;
- BOOLEAN DataIsIdentical;
+ EFI_STATUS Status;
+ EFI_HOB_GUID_TYPE *GuidHob;
+ VOID *HobData;
+ VOID *VariableData;
+ UINTN DataSize;
+ UINTN BufferSize;
+ BOOLEAN DataIsIdentical;
+ VOID *CompressedData;
+ UINT64 CompressedSize;
+ UINTN CompressedAllocationPages;
- DataSize = 0;
- BufferSize = 0;
- VariableData = NULL;
- GuidHob = NULL;
- HobData = NULL;
- DataIsIdentical = FALSE;
+ DataSize = 0;
+ BufferSize = 0;
+ VariableData = NULL;
+ GuidHob = NULL;
+ HobData = NULL;
+ DataIsIdentical = FALSE;
+ CompressedData = NULL;
+ CompressedSize = 0;
+ CompressedAllocationPages = 0;
//
// Search for the Memory Configuration GUID HOB. If it is not present, then @@ -73,6 +82,29 @@ SaveMemoryConfigEntryPoint (
}
}
+ if (PcdGetBool (PcdEnableCompressedFspNvsBuffer)) {
+ if (DataSize > 0) {
+ CompressedAllocationPages = EFI_SIZE_TO_PAGES (DataSize);
+ CompressedData = AllocatePages (CompressedAllocationPages);
+ if (CompressedData == NULL) {
+ DEBUG ((DEBUG_ERROR, "[%a] - Failed to allocate compressed data buffer.\n", __FUNCTION__));
+ ASSERT_EFI_ERROR (EFI_OUT_OF_RESOURCES);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ CompressedSize = EFI_PAGES_TO_SIZE (CompressedAllocationPages);
+ Status = Compress (HobData, DataSize, CompressedData, &CompressedSize);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "[%a] - failed to compress data. Status = %r\n", __FUNCTION__, Status));
+ ASSERT_EFI_ERROR (Status);
+ return Status;
+ }
+ }
+
+ HobData = CompressedData;
+ DataSize = (UINTN)CompressedSize;
+ }
+
if (HobData != NULL) {
DEBUG ((DEBUG_INFO, "FspNvsHob.NvsDataLength:%d\n", DataSize));
DEBUG ((DEBUG_INFO, "FspNvsHob.NvsDataPtr : 0x%x\n", HobData));
@@ -136,6 +168,10 @@ SaveMemoryConfigEntryPoint (
DEBUG((DEBUG_ERROR, "Memory S3 Data HOB was not found\n"));
}
+ if (CompressedData != NULL) {
+ FreePages (CompressedData, CompressedAllocationPages); }
+
//
// This driver does not produce any protocol services, so always unload it.
//
diff --git a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.inf b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.inf
index 61e85a658693..0f12deb131ca 100644
--- a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryConfig.inf
+++ b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemo
+++ ryConfig.inf
@@ -26,6 +26,7 @@ [LibraryClasses]
LargeVariableReadLib
LargeVariableWriteLib
BaseLib
+ CompressLib
[Packages]
MdePkg/MdePkg.dec
@@ -45,6 +46,9 @@ [Guids]
gFspNonVolatileStorageHob2Guid ## CONSUMES
gFspNvsBufferVariableGuid ## PRODUCES
+[Pcd]
+ gMinPlatformPkgTokenSpaceGuid.PcdEnableCompressedFspNvsBuffer
+
[Depex]
gEfiVariableArchProtocolGuid AND
gEfiVariableWriteArchProtocolGuid
\ No newline at end of file
diff --git a/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc b/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
index 5ce21cf31e17..dfe7d836d32a 100644
--- a/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
+++ b/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
@@ -147,6 +147,7 @@ [LibraryClasses.common]
BmpSupportLib|MdeModulePkg/Library/BaseBmpSupportLib/BaseBmpSupportLib.inf
LargeVariableReadLib|MinPlatformPkg/Library/BaseLargeVariableLib/BaseLargeVariableReadLib.inf
LargeVariableWriteLib|MinPlatformPkg/Library/BaseLargeVariableLib/BaseLargeVariableWriteLib.inf
+ CompressLib|MinPlatformPkg/Library/CompressLib/CompressLib.inf
#
# CryptLib
diff --git a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
index 784abb828e76..45c75f8ec2c9 100644
--- a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
+++ b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
@@ -311,6 +311,12 @@ [PcdsFixedAtBuild, PcdsPatchableInModule, PcdsDynamic, PcdsDynamicEx]
gMinPlatformPkgTokenSpaceGuid.PcdPlatformMemoryCheckLevel|0|UINT32|0x30000009
+ ## Controls whether the FSP NVS buffer is saved as compressed data.
+ # Data compression can significantly reduce variable storage usage for FSP NVS buffer data.
+ # Platforms that choose to compress the data will need to decompress
+ the variable data upon # extraction.
+
+ gMinPlatformPkgTokenSpaceGuid.PcdEnableCompressedFspNvsBuffer|FALSE|BO
+ OLEAN|0x30000010
+
## This PCD is to control which device is the potential trusted console input device.<BR><BR>
# For example:<BR>
# USB Short Form: UsbHID(0xFFFF,0xFFFF,0x1,0x1)<BR> diff --git a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
index 90127c16b59e..087fa48dd00a 100644
--- a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
+++ b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
@@ -101,6 +101,7 @@ [LibraryClasses.common.DXE_DRIVER]
#
# DXE phase common
#
+ CompressLib|MinPlatformPkg/Library/CompressLib/CompressLib.inf
FspWrapperPlatformLib|MinPlatformPkg/FspWrapper/Library/DxeFspWrapperPlatformLib/DxeFspWrapperPlatformLib.inf
TestPointCheckLib|MinPlatformPkg/Test/Library/TestPointCheckLib/DxeTestPointCheckLib.inf
TestPointLib|MinPlatformPkg/Test/Library/TestPointLib/DxeTestPointLib.inf
--
2.40.1.windows.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [edk2-devel] [edk2-platforms][PATCH v4 1/1] MinPlatformPkg: Add FspNvsBuffer compression option
2023-05-10 15:02 [edk2-platforms][PATCH v4 1/1] MinPlatformPkg: Add FspNvsBuffer compression option Michael Kubacki
2023-05-10 15:20 ` Isaac Oram
@ 2023-05-10 15:47 ` Chiu, Chasel
2023-05-10 15:57 ` Chiu, Chasel
2 siblings, 0 replies; 4+ messages in thread
From: Chiu, Chasel @ 2023-05-10 15:47 UTC (permalink / raw)
To: devel@edk2.groups.io, mikuback@linux.microsoft.com
Cc: Desimone, Nathaniel L, Oram, Isaac W, Gao, Liming, Dong, Eric,
Gudla, Raghava
Reviewed-by: Chasel Chiu <chasel.chiu@intel.com>
Thanks,
Chasel
> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Michael
> Kubacki
> Sent: Wednesday, May 10, 2023 8:02 AM
> To: devel@edk2.groups.io
> Cc: Chiu, Chasel <chasel.chiu@intel.com>; Desimone, Nathaniel L
> <nathaniel.l.desimone@intel.com>; Oram, Isaac W <isaac.w.oram@intel.com>;
> Gao, Liming <gaoliming@byosoft.com.cn>; Dong, Eric <eric.dong@intel.com>;
> Gudla, Raghava <raghava.gudla@intel.com>
> Subject: [edk2-devel] [edk2-platforms][PATCH v4 1/1] MinPlatformPkg: Add
> FspNvsBuffer compression option
>
> From: Michael Kubacki <michael.kubacki@microsoft.com>
>
> Adds a PCD called "PcdEnableCompressedFspNvsBuffer" that allows the
> "FspNvsBuffer" UEFI variable data to be saved as compressed data.
>
> Especially due to the nature of the data saved in this variable, it compresses well.
> For example, it has been found to reduce ~63KB of data to ~13KB. Boot time
> impact has been found to be negligible.
>
> The default value is FALSE to keep default behavior consistent.
>
> Decompression can be performed on the variable data using the standard
> UefiDecompressLib.
>
> Cc: Chasel Chiu <chasel.chiu@intel.com>
> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
> Cc: Isaac Oram <isaac.w.oram@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Eric Dong <eric.dong@intel.com>
> Cc: Raghava Gudla <raghava.gudla@intel.com>
> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
> ---
>
> Notes:
> v4:
> - Rebase onto 42a677e992d2
> - Add CompressLib to MinPlatformPkg.dsc as well
> v3:
> - Rebase onto 7ac91ec277db
> - Add CompressLib instance to CoreCommonLib.dsc
> v2: Rebase onto 9769bf28d1fc
>
>
> Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryC
> onfig.c | 62 ++++++++++++++++----
>
> Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryC
> onfig.inf | 4 ++
> Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc |
> 1 +
> Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec | 6 ++
> Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc | 1 +
> 5 files changed, 61 insertions(+), 13 deletions(-)
>
> diff --git
> a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemor
> yConfig.c
> b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemor
> yConfig.c
> index 0215e8eeddfb..95b8cef8b32b 100644
> ---
> a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemor
> yConfig.c
> +++
> b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemo
> +++ ryConfig.c
> @@ -3,6 +3,7 @@
> exists, and saves the data to nvRAM.
>
> Copyright (c) 2017 - 2022, Intel Corporation. All rights reserved.<BR>
> +Copyright (c) Microsoft Corporation.<BR>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
> **/
> @@ -10,6 +11,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent #include
> <Base.h> #include <Uefi.h> #include <Library/BaseLib.h>
> +#include <Library/CompressLib.h>
> #include <Library/UefiBootServicesTableLib.h>
> #include <Library/UefiRuntimeServicesTableLib.h>
> #include <Library/HobLib.h>
> @@ -19,6 +21,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent #include
> <Library/BaseMemoryLib.h> #include <Library/LargeVariableReadLib.h>
> #include <Library/LargeVariableWriteLib.h>
> +#include <Library/PcdLib.h>
> #include <Library/VariableWriteLib.h>
> #include <Guid/FspNonVolatileStorageHob2.h>
>
> @@ -38,20 +41,26 @@ SaveMemoryConfigEntryPoint (
> IN EFI_SYSTEM_TABLE *SystemTable
> )
> {
> - EFI_STATUS Status;
> - EFI_HOB_GUID_TYPE *GuidHob;
> - VOID *HobData;
> - VOID *VariableData;
> - UINTN DataSize;
> - UINTN BufferSize;
> - BOOLEAN DataIsIdentical;
> + EFI_STATUS Status;
> + EFI_HOB_GUID_TYPE *GuidHob;
> + VOID *HobData;
> + VOID *VariableData;
> + UINTN DataSize;
> + UINTN BufferSize;
> + BOOLEAN DataIsIdentical;
> + VOID *CompressedData;
> + UINT64 CompressedSize;
> + UINTN CompressedAllocationPages;
>
> - DataSize = 0;
> - BufferSize = 0;
> - VariableData = NULL;
> - GuidHob = NULL;
> - HobData = NULL;
> - DataIsIdentical = FALSE;
> + DataSize = 0;
> + BufferSize = 0;
> + VariableData = NULL;
> + GuidHob = NULL;
> + HobData = NULL;
> + DataIsIdentical = FALSE;
> + CompressedData = NULL;
> + CompressedSize = 0;
> + CompressedAllocationPages = 0;
>
> //
> // Search for the Memory Configuration GUID HOB. If it is not present, then
> @@ -73,6 +82,29 @@ SaveMemoryConfigEntryPoint (
> }
> }
>
> + if (PcdGetBool (PcdEnableCompressedFspNvsBuffer)) {
> + if (DataSize > 0) {
> + CompressedAllocationPages = EFI_SIZE_TO_PAGES (DataSize);
> + CompressedData = AllocatePages (CompressedAllocationPages);
> + if (CompressedData == NULL) {
> + DEBUG ((DEBUG_ERROR, "[%a] - Failed to allocate compressed data
> buffer.\n", __FUNCTION__));
> + ASSERT_EFI_ERROR (EFI_OUT_OF_RESOURCES);
> + return EFI_OUT_OF_RESOURCES;
> + }
> +
> + CompressedSize = EFI_PAGES_TO_SIZE (CompressedAllocationPages);
> + Status = Compress (HobData, DataSize, CompressedData,
> &CompressedSize);
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_ERROR, "[%a] - failed to compress data. Status = %r\n",
> __FUNCTION__, Status));
> + ASSERT_EFI_ERROR (Status);
> + return Status;
> + }
> + }
> +
> + HobData = CompressedData;
> + DataSize = (UINTN)CompressedSize;
> + }
> +
> if (HobData != NULL) {
> DEBUG ((DEBUG_INFO, "FspNvsHob.NvsDataLength:%d\n", DataSize));
> DEBUG ((DEBUG_INFO, "FspNvsHob.NvsDataPtr : 0x%x\n", HobData));
> @@ -136,6 +168,10 @@ SaveMemoryConfigEntryPoint (
> DEBUG((DEBUG_ERROR, "Memory S3 Data HOB was not found\n"));
> }
>
> + if (CompressedData != NULL) {
> + FreePages (CompressedData, CompressedAllocationPages); }
> +
> //
> // This driver does not produce any protocol services, so always unload it.
> //
> diff --git
> a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemor
> yConfig.inf
> b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemor
> yConfig.inf
> index 61e85a658693..0f12deb131ca 100644
> ---
> a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemor
> yConfig.inf
> +++
> b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemo
> +++ ryConfig.inf
> @@ -26,6 +26,7 @@ [LibraryClasses]
> LargeVariableReadLib
> LargeVariableWriteLib
> BaseLib
> + CompressLib
>
> [Packages]
> MdePkg/MdePkg.dec
> @@ -45,6 +46,9 @@ [Guids]
> gFspNonVolatileStorageHob2Guid ## CONSUMES
> gFspNvsBufferVariableGuid ## PRODUCES
>
> +[Pcd]
> + gMinPlatformPkgTokenSpaceGuid.PcdEnableCompressedFspNvsBuffer
> +
> [Depex]
> gEfiVariableArchProtocolGuid AND
> gEfiVariableWriteArchProtocolGuid
> \ No newline at end of file
> diff --git a/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
> b/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
> index 5ce21cf31e17..dfe7d836d32a 100644
> --- a/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
> +++ b/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
> @@ -147,6 +147,7 @@ [LibraryClasses.common]
>
> BmpSupportLib|MdeModulePkg/Library/BaseBmpSupportLib/BaseBmpSupportLi
> b.inf
>
> LargeVariableReadLib|MinPlatformPkg/Library/BaseLargeVariableLib/BaseLarg
> eVariableReadLib.inf
>
> LargeVariableWriteLib|MinPlatformPkg/Library/BaseLargeVariableLib/BaseLarg
> eVariableWriteLib.inf
> + CompressLib|MinPlatformPkg/Library/CompressLib/CompressLib.inf
>
> #
> # CryptLib
> diff --git a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
> b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
> index 784abb828e76..45c75f8ec2c9 100644
> --- a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
> +++ b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
> @@ -311,6 +311,12 @@ [PcdsFixedAtBuild, PcdsPatchableInModule,
> PcdsDynamic, PcdsDynamicEx]
>
>
> gMinPlatformPkgTokenSpaceGuid.PcdPlatformMemoryCheckLevel|0|UINT32|0
> x30000009
>
> + ## Controls whether the FSP NVS buffer is saved as compressed data.
> + # Data compression can significantly reduce variable storage usage for FSP
> NVS buffer data.
> + # Platforms that choose to compress the data will need to decompress
> + the variable data upon # extraction.
> +
> +
> gMinPlatformPkgTokenSpaceGuid.PcdEnableCompressedFspNvsBuffer|FALSE|B
> O
> + OLEAN|0x30000010
> +
> ## This PCD is to control which device is the potential trusted console input
> device.<BR><BR>
> # For example:<BR>
> # USB Short Form: UsbHID(0xFFFF,0xFFFF,0x1,0x1)<BR> diff --git
> a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
> b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
> index 90127c16b59e..087fa48dd00a 100644
> --- a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
> +++ b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
> @@ -101,6 +101,7 @@ [LibraryClasses.common.DXE_DRIVER]
> #
> # DXE phase common
> #
> + CompressLib|MinPlatformPkg/Library/CompressLib/CompressLib.inf
>
> FspWrapperPlatformLib|MinPlatformPkg/FspWrapper/Library/DxeFspWrapperPl
> atformLib/DxeFspWrapperPlatformLib.inf
>
> TestPointCheckLib|MinPlatformPkg/Test/Library/TestPointCheckLib/DxeTestPoi
> ntCheckLib.inf
> TestPointLib|MinPlatformPkg/Test/Library/TestPointLib/DxeTestPointLib.inf
> --
> 2.40.1.windows.1
>
>
>
> -=-=-=-=-=-=
> Groups.io Links: You receive all messages sent to this group.
> View/Reply Online (#104568): https://edk2.groups.io/g/devel/message/104568
> Mute This Topic: https://groups.io/mt/98807775/1777047
> Group Owner: devel+owner@edk2.groups.io
> Unsubscribe: https://edk2.groups.io/g/devel/unsub [chasel.chiu@intel.com]
> -=-=-=-=-=-=
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [edk2-devel] [edk2-platforms][PATCH v4 1/1] MinPlatformPkg: Add FspNvsBuffer compression option
2023-05-10 15:02 [edk2-platforms][PATCH v4 1/1] MinPlatformPkg: Add FspNvsBuffer compression option Michael Kubacki
2023-05-10 15:20 ` Isaac Oram
2023-05-10 15:47 ` [edk2-devel] " Chiu, Chasel
@ 2023-05-10 15:57 ` Chiu, Chasel
2 siblings, 0 replies; 4+ messages in thread
From: Chiu, Chasel @ 2023-05-10 15:57 UTC (permalink / raw)
To: devel@edk2.groups.io, mikuback@linux.microsoft.com
Cc: Desimone, Nathaniel L, Oram, Isaac W, Gao, Liming, Dong, Eric,
Gudla, Raghava
Patch merged:
https://github.com/tianocore/edk2-platforms/commit/dbd802cd273ad1b51be46ca09a58a15e4b70863f
Thanks,
Chasel
> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Michael
> Kubacki
> Sent: Wednesday, May 10, 2023 8:02 AM
> To: devel@edk2.groups.io
> Cc: Chiu, Chasel <chasel.chiu@intel.com>; Desimone, Nathaniel L
> <nathaniel.l.desimone@intel.com>; Oram, Isaac W <isaac.w.oram@intel.com>;
> Gao, Liming <gaoliming@byosoft.com.cn>; Dong, Eric <eric.dong@intel.com>;
> Gudla, Raghava <raghava.gudla@intel.com>
> Subject: [edk2-devel] [edk2-platforms][PATCH v4 1/1] MinPlatformPkg: Add
> FspNvsBuffer compression option
>
> From: Michael Kubacki <michael.kubacki@microsoft.com>
>
> Adds a PCD called "PcdEnableCompressedFspNvsBuffer" that allows the
> "FspNvsBuffer" UEFI variable data to be saved as compressed data.
>
> Especially due to the nature of the data saved in this variable, it compresses well.
> For example, it has been found to reduce ~63KB of data to ~13KB. Boot time
> impact has been found to be negligible.
>
> The default value is FALSE to keep default behavior consistent.
>
> Decompression can be performed on the variable data using the standard
> UefiDecompressLib.
>
> Cc: Chasel Chiu <chasel.chiu@intel.com>
> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
> Cc: Isaac Oram <isaac.w.oram@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Eric Dong <eric.dong@intel.com>
> Cc: Raghava Gudla <raghava.gudla@intel.com>
> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
> ---
>
> Notes:
> v4:
> - Rebase onto 42a677e992d2
> - Add CompressLib to MinPlatformPkg.dsc as well
> v3:
> - Rebase onto 7ac91ec277db
> - Add CompressLib instance to CoreCommonLib.dsc
> v2: Rebase onto 9769bf28d1fc
>
>
> Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryC
> onfig.c | 62 ++++++++++++++++----
>
> Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemoryC
> onfig.inf | 4 ++
> Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc |
> 1 +
> Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec | 6 ++
> Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc | 1 +
> 5 files changed, 61 insertions(+), 13 deletions(-)
>
> diff --git
> a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemor
> yConfig.c
> b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemor
> yConfig.c
> index 0215e8eeddfb..95b8cef8b32b 100644
> ---
> a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemor
> yConfig.c
> +++
> b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemo
> +++ ryConfig.c
> @@ -3,6 +3,7 @@
> exists, and saves the data to nvRAM.
>
> Copyright (c) 2017 - 2022, Intel Corporation. All rights reserved.<BR>
> +Copyright (c) Microsoft Corporation.<BR>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
> **/
> @@ -10,6 +11,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent #include
> <Base.h> #include <Uefi.h> #include <Library/BaseLib.h>
> +#include <Library/CompressLib.h>
> #include <Library/UefiBootServicesTableLib.h>
> #include <Library/UefiRuntimeServicesTableLib.h>
> #include <Library/HobLib.h>
> @@ -19,6 +21,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent #include
> <Library/BaseMemoryLib.h> #include <Library/LargeVariableReadLib.h>
> #include <Library/LargeVariableWriteLib.h>
> +#include <Library/PcdLib.h>
> #include <Library/VariableWriteLib.h>
> #include <Guid/FspNonVolatileStorageHob2.h>
>
> @@ -38,20 +41,26 @@ SaveMemoryConfigEntryPoint (
> IN EFI_SYSTEM_TABLE *SystemTable
> )
> {
> - EFI_STATUS Status;
> - EFI_HOB_GUID_TYPE *GuidHob;
> - VOID *HobData;
> - VOID *VariableData;
> - UINTN DataSize;
> - UINTN BufferSize;
> - BOOLEAN DataIsIdentical;
> + EFI_STATUS Status;
> + EFI_HOB_GUID_TYPE *GuidHob;
> + VOID *HobData;
> + VOID *VariableData;
> + UINTN DataSize;
> + UINTN BufferSize;
> + BOOLEAN DataIsIdentical;
> + VOID *CompressedData;
> + UINT64 CompressedSize;
> + UINTN CompressedAllocationPages;
>
> - DataSize = 0;
> - BufferSize = 0;
> - VariableData = NULL;
> - GuidHob = NULL;
> - HobData = NULL;
> - DataIsIdentical = FALSE;
> + DataSize = 0;
> + BufferSize = 0;
> + VariableData = NULL;
> + GuidHob = NULL;
> + HobData = NULL;
> + DataIsIdentical = FALSE;
> + CompressedData = NULL;
> + CompressedSize = 0;
> + CompressedAllocationPages = 0;
>
> //
> // Search for the Memory Configuration GUID HOB. If it is not present, then
> @@ -73,6 +82,29 @@ SaveMemoryConfigEntryPoint (
> }
> }
>
> + if (PcdGetBool (PcdEnableCompressedFspNvsBuffer)) {
> + if (DataSize > 0) {
> + CompressedAllocationPages = EFI_SIZE_TO_PAGES (DataSize);
> + CompressedData = AllocatePages (CompressedAllocationPages);
> + if (CompressedData == NULL) {
> + DEBUG ((DEBUG_ERROR, "[%a] - Failed to allocate compressed data
> buffer.\n", __FUNCTION__));
> + ASSERT_EFI_ERROR (EFI_OUT_OF_RESOURCES);
> + return EFI_OUT_OF_RESOURCES;
> + }
> +
> + CompressedSize = EFI_PAGES_TO_SIZE (CompressedAllocationPages);
> + Status = Compress (HobData, DataSize, CompressedData,
> &CompressedSize);
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_ERROR, "[%a] - failed to compress data. Status = %r\n",
> __FUNCTION__, Status));
> + ASSERT_EFI_ERROR (Status);
> + return Status;
> + }
> + }
> +
> + HobData = CompressedData;
> + DataSize = (UINTN)CompressedSize;
> + }
> +
> if (HobData != NULL) {
> DEBUG ((DEBUG_INFO, "FspNvsHob.NvsDataLength:%d\n", DataSize));
> DEBUG ((DEBUG_INFO, "FspNvsHob.NvsDataPtr : 0x%x\n", HobData));
> @@ -136,6 +168,10 @@ SaveMemoryConfigEntryPoint (
> DEBUG((DEBUG_ERROR, "Memory S3 Data HOB was not found\n"));
> }
>
> + if (CompressedData != NULL) {
> + FreePages (CompressedData, CompressedAllocationPages); }
> +
> //
> // This driver does not produce any protocol services, so always unload it.
> //
> diff --git
> a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemor
> yConfig.inf
> b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemor
> yConfig.inf
> index 61e85a658693..0f12deb131ca 100644
> ---
> a/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemor
> yConfig.inf
> +++
> b/Platform/Intel/MinPlatformPkg/FspWrapper/SaveMemoryConfig/SaveMemo
> +++ ryConfig.inf
> @@ -26,6 +26,7 @@ [LibraryClasses]
> LargeVariableReadLib
> LargeVariableWriteLib
> BaseLib
> + CompressLib
>
> [Packages]
> MdePkg/MdePkg.dec
> @@ -45,6 +46,9 @@ [Guids]
> gFspNonVolatileStorageHob2Guid ## CONSUMES
> gFspNvsBufferVariableGuid ## PRODUCES
>
> +[Pcd]
> + gMinPlatformPkgTokenSpaceGuid.PcdEnableCompressedFspNvsBuffer
> +
> [Depex]
> gEfiVariableArchProtocolGuid AND
> gEfiVariableWriteArchProtocolGuid
> \ No newline at end of file
> diff --git a/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
> b/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
> index 5ce21cf31e17..dfe7d836d32a 100644
> --- a/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
> +++ b/Platform/Intel/MinPlatformPkg/Include/Dsc/CoreCommonLib.dsc
> @@ -147,6 +147,7 @@ [LibraryClasses.common]
>
> BmpSupportLib|MdeModulePkg/Library/BaseBmpSupportLib/BaseBmpSupportLi
> b.inf
>
> LargeVariableReadLib|MinPlatformPkg/Library/BaseLargeVariableLib/BaseLarg
> eVariableReadLib.inf
>
> LargeVariableWriteLib|MinPlatformPkg/Library/BaseLargeVariableLib/BaseLarg
> eVariableWriteLib.inf
> + CompressLib|MinPlatformPkg/Library/CompressLib/CompressLib.inf
>
> #
> # CryptLib
> diff --git a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
> b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
> index 784abb828e76..45c75f8ec2c9 100644
> --- a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
> +++ b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
> @@ -311,6 +311,12 @@ [PcdsFixedAtBuild, PcdsPatchableInModule,
> PcdsDynamic, PcdsDynamicEx]
>
>
> gMinPlatformPkgTokenSpaceGuid.PcdPlatformMemoryCheckLevel|0|UINT32|0
> x30000009
>
> + ## Controls whether the FSP NVS buffer is saved as compressed data.
> + # Data compression can significantly reduce variable storage usage for FSP
> NVS buffer data.
> + # Platforms that choose to compress the data will need to decompress
> + the variable data upon # extraction.
> +
> +
> gMinPlatformPkgTokenSpaceGuid.PcdEnableCompressedFspNvsBuffer|FALSE|B
> O
> + OLEAN|0x30000010
> +
> ## This PCD is to control which device is the potential trusted console input
> device.<BR><BR>
> # For example:<BR>
> # USB Short Form: UsbHID(0xFFFF,0xFFFF,0x1,0x1)<BR> diff --git
> a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
> b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
> index 90127c16b59e..087fa48dd00a 100644
> --- a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
> +++ b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dsc
> @@ -101,6 +101,7 @@ [LibraryClasses.common.DXE_DRIVER]
> #
> # DXE phase common
> #
> + CompressLib|MinPlatformPkg/Library/CompressLib/CompressLib.inf
>
> FspWrapperPlatformLib|MinPlatformPkg/FspWrapper/Library/DxeFspWrapperPl
> atformLib/DxeFspWrapperPlatformLib.inf
>
> TestPointCheckLib|MinPlatformPkg/Test/Library/TestPointCheckLib/DxeTestPoi
> ntCheckLib.inf
> TestPointLib|MinPlatformPkg/Test/Library/TestPointLib/DxeTestPointLib.inf
> --
> 2.40.1.windows.1
>
>
>
> -=-=-=-=-=-=
> Groups.io Links: You receive all messages sent to this group.
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>
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2023-05-10 15:02 [edk2-platforms][PATCH v4 1/1] MinPlatformPkg: Add FspNvsBuffer compression option Michael Kubacki
2023-05-10 15:20 ` Isaac Oram
2023-05-10 15:47 ` [edk2-devel] " Chiu, Chasel
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