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From: "Michael Kubacki" <mikuback@linux.microsoft.com>
To: devel@edk2.groups.io
Cc: Jian J Wang <jian.j.wang@intel.com>,
	Hao A Wu <hao.a.wu@intel.com>,
	Liming Gao <gaoliming@byosoft.com.cn>
Subject: [PATCH v1 2/3] MdeModulePkg/Variable: Consume Variable Info HOB
Date: Wed,  6 Apr 2022 12:26:47 -0400	[thread overview]
Message-ID: <20220406162648.234-3-mikuback@linux.microsoft.com> (raw)
In-Reply-To: <20220406162648.234-1-mikuback@linux.microsoft.com>

From: Michael Kubacki <michael.kubacki@microsoft.com>

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3479

Updates VariableRuntimeDxe, VariableSmm, and VariableStandaloneMm
to acquire variable flash information from the Variable Flash
Information HOB.

If the HOB is not present, the drivers will continue to directly
read flash information from PCDs.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
---
 MdeModulePkg/Universal/Variable/Pei/Variable.c                      | 66 ++++++++++++++++++--
 MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c               | 42 +++++++++++++
 MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c            | 25 ++++++--
 MdeModulePkg/Universal/Variable/RuntimeDxe/VariableNonVolatile.c    | 20 ++++--
 MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c            | 20 +++++-
 MdeModulePkg/Universal/Variable/Pei/Variable.h                      |  2 +
 MdeModulePkg/Universal/Variable/Pei/VariablePei.inf                 |  6 +-
 MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h               | 17 +++++
 MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf   |  6 +-
 MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf          |  6 +-
 MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf |  6 +-
 11 files changed, 194 insertions(+), 22 deletions(-)

diff --git a/MdeModulePkg/Universal/Variable/Pei/Variable.c b/MdeModulePkg/Universal/Variable/Pei/Variable.c
index b36dd0de67b2..b19a26965ef2 100644
--- a/MdeModulePkg/Universal/Variable/Pei/Variable.c
+++ b/MdeModulePkg/Universal/Variable/Pei/Variable.c
@@ -553,6 +553,48 @@ GetHobVariableStore (
   }
 }
 
+/**
+  Get the HOB that contains variable flash information.
+
+  @param[out] VariableFlashInfo   Pointer to a pointer to set to the variable flash information structure.
+
+  @retval EFI_SUCCESS             Variable flash information was found successfully.
+  @retval EFI_INVALID_PARAMETER   The VariableFlashInfo pointer given is NULL.
+  @retval EFI_NOT_FOUND           Variable flash information could not be found.
+
+**/
+EFI_STATUS
+GetVariableFlashInfo (
+  OUT VARIABLE_FLASH_INFO  **VariableFlashInfo
+  )
+{
+  EFI_HOB_GUID_TYPE  *GuidHob;
+
+  if (VariableFlashInfo == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  GuidHob = GetFirstGuidHob (&gVariableFlashInfoHobGuid);
+  if (GuidHob == NULL) {
+    return EFI_NOT_FOUND;
+  }
+
+  *VariableFlashInfo = GET_GUID_HOB_DATA (GuidHob);
+
+  //
+  // Assert if more than one variable flash information HOB is present.
+  //
+  DEBUG_CODE (
+    if ((GetNextGuidHob (&gVariableFlashInfoHobGuid, GET_NEXT_HOB (GuidHob)) != NULL)) {
+    DEBUG ((DEBUG_ERROR, "ERROR: Found two variable flash information HOBs\n"));
+    ASSERT (FALSE);
+  }
+
+    );
+
+  return EFI_SUCCESS;
+}
+
 /**
   Return the variable store header and the store info based on the Index.
 
@@ -567,8 +609,10 @@ GetVariableStore (
   OUT VARIABLE_STORE_INFO  *StoreInfo
   )
 {
+  EFI_STATUS                            Status;
   EFI_HOB_GUID_TYPE                     *GuidHob;
   EFI_FIRMWARE_VOLUME_HEADER            *FvHeader;
+  VARIABLE_FLASH_INFO                   *VariableFlashInfo;
   VARIABLE_STORE_HEADER                 *VariableStoreHeader;
   EFI_PHYSICAL_ADDRESS                  NvStorageBase;
   UINT32                                NvStorageSize;
@@ -591,11 +635,23 @@ GetVariableStore (
         // Emulated non-volatile variable mode is not enabled.
         //
 
-        NvStorageSize = PcdGet32 (PcdFlashNvStorageVariableSize);
-        NvStorageBase = (EFI_PHYSICAL_ADDRESS)(PcdGet64 (PcdFlashNvStorageVariableBase64) != 0 ?
-                                               PcdGet64 (PcdFlashNvStorageVariableBase64) :
-                                               PcdGet32 (PcdFlashNvStorageVariableBase)
-                                               );
+        Status = GetVariableFlashInfo (&VariableFlashInfo);
+        if (!EFI_ERROR (Status)) {
+          NvStorageBase = VariableFlashInfo->NvStorageBaseAddress;
+          Status        = SafeUint64ToUint32 (VariableFlashInfo->NvStorageLength, &NvStorageSize);
+          // This driver currently assumes the size will be UINT32 so only accept
+          // that for now.
+          ASSERT_EFI_ERROR (Status);
+        }
+
+        if (EFI_ERROR (Status)) {
+          NvStorageSize = PcdGet32 (PcdFlashNvStorageVariableSize);
+          NvStorageBase = (EFI_PHYSICAL_ADDRESS)(PcdGet64 (PcdFlashNvStorageVariableBase64) != 0 ?
+                                                 PcdGet64 (PcdFlashNvStorageVariableBase64) :
+                                                 PcdGet32 (PcdFlashNvStorageVariableBase)
+                                                 );
+        }
+
         ASSERT (NvStorageBase != 0);
 
         //
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
index 6c1a3440ac8c..6ab4efd62a7e 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
@@ -3701,6 +3701,48 @@ GetHobVariableStore (
   return EFI_SUCCESS;
 }
 
+/**
+  Get the HOB that contains variable flash information.
+
+  @param[out] VariableFlashInfo   Pointer to a pointer to set to the variable flash information structure.
+
+  @retval EFI_SUCCESS             Variable flash information was found successfully.
+  @retval EFI_INVALID_PARAMETER   The VariableFlashInfo pointer given is NULL.
+  @retval EFI_NOT_FOUND           Variable flash information could not be found.
+
+**/
+EFI_STATUS
+GetVariableFlashInfo (
+  OUT VARIABLE_FLASH_INFO  **VariableFlashInfo
+  )
+{
+  EFI_HOB_GUID_TYPE  *GuidHob;
+
+  if (VariableFlashInfo == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  GuidHob = GetFirstGuidHob (&gVariableFlashInfoHobGuid);
+  if (GuidHob == NULL) {
+    return EFI_NOT_FOUND;
+  }
+
+  *VariableFlashInfo = GET_GUID_HOB_DATA (GuidHob);
+
+  //
+  // Assert if more than one variable flash information HOB is present.
+  //
+  DEBUG_CODE (
+    if ((GetNextGuidHob (&gVariableFlashInfoHobGuid, GET_NEXT_HOB (GuidHob)) != NULL)) {
+    DEBUG ((DEBUG_ERROR, "ERROR: Found two variable flash information HOBs\n"));
+    ASSERT (FALSE);
+  }
+
+    );
+
+  return EFI_SUCCESS;
+}
+
 /**
   Initializes variable store area for non-volatile and volatile variable.
 
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c
index 03fec3048dc4..1dc121d78e35 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c
@@ -416,6 +416,7 @@ FtwNotificationEvent (
   EFI_STATUS                          Status;
   EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *FvbProtocol;
   EFI_FAULT_TOLERANT_WRITE_PROTOCOL   *FtwProtocol;
+  VARIABLE_FLASH_INFO                 *VariableFlashInfo;
   EFI_PHYSICAL_ADDRESS                NvStorageVariableBase;
   EFI_GCD_MEMORY_SPACE_DESCRIPTOR     GcdDescriptor;
   EFI_PHYSICAL_ADDRESS                BaseAddress;
@@ -423,6 +424,7 @@ FtwNotificationEvent (
   EFI_PHYSICAL_ADDRESS                VariableStoreBase;
   UINT64                              VariableStoreLength;
   UINTN                               FtwMaxBlockSize;
+  UINT32                              NvStorageVariableSize;
 
   //
   // Ensure FTW protocol is installed.
@@ -432,14 +434,29 @@ FtwNotificationEvent (
     return;
   }
 
+  Status = GetVariableFlashInfo (&VariableFlashInfo);
+  if (!EFI_ERROR (Status)) {
+    NvStorageVariableBase = VariableFlashInfo->NvStorageBaseAddress;
+    Status                = SafeUint64ToUint32 (VariableFlashInfo->NvStorageLength, &NvStorageVariableSize);
+    // This driver currently assumes the size will be UINT32 so only accept
+    // that for now.
+    ASSERT_EFI_ERROR (Status);
+  }
+
+  if (EFI_ERROR (Status)) {
+    NvStorageVariableBase = NV_STORAGE_VARIABLE_BASE;
+    NvStorageVariableSize = PcdGet32 (PcdFlashNvStorageVariableSize);
+  }
+
+  ASSERT (NvStorageVariableBase != 0);
+
+  VariableStoreBase = NvStorageVariableBase + mNvFvHeaderCache->HeaderLength;
+
   Status = FtwProtocol->GetMaxBlockSize (FtwProtocol, &FtwMaxBlockSize);
   if (!EFI_ERROR (Status)) {
-    ASSERT (PcdGet32 (PcdFlashNvStorageVariableSize) <= FtwMaxBlockSize);
+    ASSERT (NvStorageVariableSize <= FtwMaxBlockSize);
   }
 
-  NvStorageVariableBase = NV_STORAGE_VARIABLE_BASE;
-  VariableStoreBase     = NvStorageVariableBase + mNvFvHeaderCache->HeaderLength;
-
   //
   // Let NonVolatileVariableBase point to flash variable store base directly after FTW ready.
   //
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableNonVolatile.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableNonVolatile.c
index 5e9d40b67ac2..e424c210248a 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableNonVolatile.c
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableNonVolatile.c
@@ -137,6 +137,7 @@ InitRealNonVolatileVariableStore (
 {
   EFI_FIRMWARE_VOLUME_HEADER            *FvHeader;
   VARIABLE_STORE_HEADER                 *VariableStore;
+  VARIABLE_FLASH_INFO                   *VariableFlashInfo;
   UINT32                                VariableStoreLength;
   EFI_HOB_GUID_TYPE                     *GuidHob;
   EFI_PHYSICAL_ADDRESS                  NvStorageBase;
@@ -153,19 +154,30 @@ InitRealNonVolatileVariableStore (
 
   mVariableModuleGlobal->FvbInstance = NULL;
 
+  Status = GetVariableFlashInfo (&VariableFlashInfo);
+  if (!EFI_ERROR (Status)) {
+    NvStorageBase = VariableFlashInfo->NvStorageBaseAddress;
+    Status        = SafeUint64ToUint32 (VariableFlashInfo->NvStorageLength, &NvStorageSize);
+    // This driver currently assumes the size will be UINT32 so only accept that for now.
+    ASSERT_EFI_ERROR (Status);
+  }
+
+  if (EFI_ERROR (Status)) {
+    NvStorageBase = NV_STORAGE_VARIABLE_BASE;
+    NvStorageSize = PcdGet32 (PcdFlashNvStorageVariableSize);
+  }
+
+  ASSERT (NvStorageBase != 0);
+
   //
   // Allocate runtime memory used for a memory copy of the FLASH region.
   // Keep the memory and the FLASH in sync as updates occur.
   //
-  NvStorageSize = PcdGet32 (PcdFlashNvStorageVariableSize);
   NvStorageData = AllocateRuntimeZeroPool (NvStorageSize);
   if (NvStorageData == NULL) {
     return EFI_OUT_OF_RESOURCES;
   }
 
-  NvStorageBase = NV_STORAGE_VARIABLE_BASE;
-  ASSERT (NvStorageBase != 0);
-
   //
   // Copy NV storage data to the memory buffer.
   //
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c
index 517cae7b00f8..c8667dd6ca34 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c
@@ -1082,8 +1082,10 @@ SmmFtwNotificationEvent (
   EFI_PHYSICAL_ADDRESS                    VariableStoreBase;
   EFI_SMM_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *FvbProtocol;
   EFI_SMM_FAULT_TOLERANT_WRITE_PROTOCOL   *FtwProtocol;
+  VARIABLE_FLASH_INFO                     *VariableFlashInfo;
   EFI_PHYSICAL_ADDRESS                    NvStorageVariableBase;
   UINTN                                   FtwMaxBlockSize;
+  UINT32                                  NvStorageVariableSize;
 
   if (mVariableModuleGlobal->FvbInstance != NULL) {
     return EFI_SUCCESS;
@@ -1097,9 +1099,25 @@ SmmFtwNotificationEvent (
     return Status;
   }
 
+  Status = GetVariableFlashInfo (&VariableFlashInfo);
+  if (!EFI_ERROR (Status)) {
+    NvStorageVariableBase = VariableFlashInfo->NvStorageBaseAddress;
+    Status                = SafeUint64ToUint32 (VariableFlashInfo->NvStorageLength, &NvStorageVariableSize);
+    // This driver currently assumes the size will be UINT32 so only accept that for now.
+    ASSERT_EFI_ERROR (Status);
+  }
+
+  if (EFI_ERROR (Status)) {
+    NvStorageVariableBase = NV_STORAGE_VARIABLE_BASE;
+    NvStorageVariableSize = PcdGet32 (PcdFlashNvStorageVariableSize);
+  }
+
+  ASSERT (NvStorageVariableBase != 0);
+  VariableStoreBase = NvStorageVariableBase + mNvFvHeaderCache->HeaderLength;
+
   Status = FtwProtocol->GetMaxBlockSize (FtwProtocol, &FtwMaxBlockSize);
   if (!EFI_ERROR (Status)) {
-    ASSERT (PcdGet32 (PcdFlashNvStorageVariableSize) <= FtwMaxBlockSize);
+    ASSERT (NvStorageVariableSize <= FtwMaxBlockSize);
   }
 
   NvStorageVariableBase = NV_STORAGE_VARIABLE_BASE;
diff --git a/MdeModulePkg/Universal/Variable/Pei/Variable.h b/MdeModulePkg/Universal/Variable/Pei/Variable.h
index 7f9ad5bfc357..b2ba30b841c1 100644
--- a/MdeModulePkg/Universal/Variable/Pei/Variable.h
+++ b/MdeModulePkg/Universal/Variable/Pei/Variable.h
@@ -20,7 +20,9 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #include <Library/BaseMemoryLib.h>
 #include <Library/PeiServicesTablePointerLib.h>
 #include <Library/PeiServicesLib.h>
+#include <Library/SafeIntLib.h>
 
+#include <Guid/VariableFlashInfo.h>
 #include <Guid/VariableFormat.h>
 #include <Guid/VariableIndexTable.h>
 #include <Guid/SystemNvDataGuid.h>
diff --git a/MdeModulePkg/Universal/Variable/Pei/VariablePei.inf b/MdeModulePkg/Universal/Variable/Pei/VariablePei.inf
index 7cbdd2385e8f..2557219f9b30 100644
--- a/MdeModulePkg/Universal/Variable/Pei/VariablePei.inf
+++ b/MdeModulePkg/Universal/Variable/Pei/VariablePei.inf
@@ -39,6 +39,7 @@ [LibraryClasses]
   DebugLib
   PeiServicesTablePointerLib
   PeiServicesLib
+  SafeIntLib
 
 [Guids]
   ## CONSUMES             ## GUID # Variable store header
@@ -54,14 +55,15 @@ [Guids]
   ## SOMETIMES_CONSUMES   ## HOB
   ## CONSUMES             ## GUID # Dependence
   gEdkiiFaultTolerantWriteGuid
+  gVariableFlashInfoHobGuid   ## CONSUMES   ## HOB
 
 [Ppis]
   gEfiPeiReadOnlyVariable2PpiGuid   ## PRODUCES
 
 [Pcd]
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase      ## SOMETIMES_CONSUMES
-  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64    ## CONSUMES
-  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize      ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64    ## SOMETIMES_CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize      ## SOMETIMES_CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdEmuVariableNvModeEnable         ## SOMETIMES_CONSUMES
 
 [Depex]
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
index 31e408976a35..c9bbd1568567 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
@@ -31,12 +31,14 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #include <Library/MemoryAllocationLib.h>
 #include <Library/AuthVariableLib.h>
 #include <Library/VarCheckLib.h>
+#include <Library/SafeIntLib.h>
 #include <Guid/GlobalVariable.h>
 #include <Guid/EventGroup.h>
 #include <Guid/VariableFormat.h>
 #include <Guid/SystemNvDataGuid.h>
 #include <Guid/FaultTolerantWrite.h>
 #include <Guid/VarErrorFlag.h>
+#include <Guid/VariableFlashInfo.h>
 
 #include "PrivilegePolymorphic.h"
 
@@ -126,6 +128,21 @@ typedef struct {
   EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL    *FvbInstance;
 } VARIABLE_MODULE_GLOBAL;
 
+/**
+  Get the HOB that contains variable flash information.
+
+  @param[out] VariableFlashInfo   Pointer to a pointer to set to the variable flash information structure.
+
+  @retval EFI_SUCCESS             Variable flash information was found successfully.
+  @retval EFI_INVALID_PARAMETER   The VariableFlashInfo pointer given is NULL.
+  @retval EFI_NOT_FOUND           Variable flash information could not be found.
+
+**/
+EFI_STATUS
+GetVariableFlashInfo (
+  OUT VARIABLE_FLASH_INFO  **VariableFlashInfo
+  );
+
 /**
   Flush the HOB variable to flash.
 
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
index c9434df631ee..6df350afa260 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
@@ -73,6 +73,7 @@ [LibraryClasses]
   VarCheckLib
   VariablePolicyLib
   VariablePolicyHelperLib
+  SafeIntLib
 
 [Protocols]
   gEfiFirmwareVolumeBlockProtocolGuid           ## CONSUMES
@@ -114,6 +115,7 @@ [Guids]
   gEfiSystemNvDataFvGuid                        ## CONSUMES             ## GUID
   gEfiEndOfDxeEventGroupGuid                    ## CONSUMES             ## Event
   gEdkiiFaultTolerantWriteGuid                  ## SOMETIMES_CONSUMES   ## HOB
+  gVariableFlashInfoHobGuid                     ## CONSUMES             ## HOB
 
   ## SOMETIMES_CONSUMES   ## Variable:L"VarErrorFlag"
   ## SOMETIMES_PRODUCES   ## Variable:L"VarErrorFlag"
@@ -125,9 +127,9 @@ [Guids]
   gEfiImageSecurityDatabaseGuid
 
 [Pcd]
-  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize      ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize      ## SOMETIMES_CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase      ## SOMETIMES_CONSUMES
-  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64    ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64    ## SOMETIMES_CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVariableSize                 ## CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdMaxAuthVariableSize             ## CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVolatileVariableSize         ## CONSUMES
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf
index eaa97a01c6e5..398e7d9060ab 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf
@@ -82,6 +82,7 @@ [LibraryClasses]
   UefiBootServicesTableLib
   VariablePolicyLib
   VariablePolicyHelperLib
+  SafeIntLib
 
 [Protocols]
   gEfiSmmFirmwareVolumeBlockProtocolGuid        ## CONSUMES
@@ -121,15 +122,16 @@ [Guids]
   gSmmVariableWriteGuid                         ## PRODUCES             ## GUID # Install protocol
   gEfiSystemNvDataFvGuid                        ## CONSUMES             ## GUID
   gEdkiiFaultTolerantWriteGuid                  ## SOMETIMES_CONSUMES   ## HOB
+  gVariableFlashInfoHobGuid                     ## CONSUMES             ## HOB
 
   ## SOMETIMES_CONSUMES   ## Variable:L"VarErrorFlag"
   ## SOMETIMES_PRODUCES   ## Variable:L"VarErrorFlag"
   gEdkiiVarErrorFlagGuid
 
 [Pcd]
-  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize       ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize       ## SOMETIMES_CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase       ## SOMETIMES_CONSUMES
-  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64     ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64     ## SOMETIMES_CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVariableSize                  ## CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdMaxAuthVariableSize              ## CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVolatileVariableSize          ## CONSUMES
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
index d8c4f77e7f1f..efc9290ae759 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
@@ -73,6 +73,7 @@ [LibraryClasses]
   HobLib
   MemoryAllocationLib
   MmServicesTableLib
+  SafeIntLib
   StandaloneMmDriverEntryPoint
   SynchronizationLib
   VarCheckLib
@@ -114,6 +115,7 @@ [Guids]
 
   gEfiSystemNvDataFvGuid                        ## CONSUMES             ## GUID
   gEdkiiFaultTolerantWriteGuid                  ## SOMETIMES_CONSUMES   ## HOB
+  gVariableFlashInfoHobGuid                     ## CONSUMES             ## HOB
 
   ## SOMETIMES_CONSUMES   ## Variable:L"VarErrorFlag"
   ## SOMETIMES_PRODUCES   ## Variable:L"VarErrorFlag"
@@ -121,8 +123,8 @@ [Guids]
 
 [Pcd]
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase       ## SOMETIMES_CONSUMES
-  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64     ## CONSUMES
-  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize       ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64     ## SOMETIMES_CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize       ## SOMETIMES_CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVariableSize                  ## CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdMaxAuthVariableSize              ## CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVolatileVariableSize          ## CONSUMES
-- 
2.28.0.windows.1


  parent reply	other threads:[~2022-04-06 16:27 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-06 16:26 [PATCH v1 0/3] Add Variable Flash Info HOB Michael Kubacki
2022-04-06 16:26 ` [PATCH v1 1/3] MdeModulePkg: " Michael Kubacki
2022-04-06 16:26 ` Michael Kubacki [this message]
2022-04-07  3:31   ` [edk2-devel] [PATCH v1 2/3] MdeModulePkg/Variable: Consume Variable " Wu, Hao A
2022-04-06 16:26 ` [PATCH v1 3/3] MdeModulePkg/FaultTolerantWrite: " Michael Kubacki
2022-04-07  3:31   ` [edk2-devel] " Wu, Hao A
2022-04-07  3:31 ` [edk2-devel] [PATCH v1 0/3] Add Variable Flash " Wu, Hao A
2022-04-07 23:56   ` Michael Kubacki
2022-04-08 21:20     ` Michael Kubacki

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    --in-reply-to=20220406162648.234-3-mikuback@linux.microsoft.com \
    --to=devel@edk2.groups.io \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

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