Support Variable driver (EmuRuntimeDxe) to support the default variable data stored in HOB.

Signed-off-by: niruiyu
Reviewed-by: lgao4

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12553 6f19259b-4bc3-4df7-8a09-765794883524

4 files changed, 59 insertions, 9 deletions

diff --git a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariable.c b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariable.c
index df42eda..3e4c5da 100644
--- a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariable.c
+++ b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariable.c
@@ -186,7 +186,7 @@ GetNextPotentialVariablePtr (
   //

   // Be careful about pad size for alignment

   //

-  VarHeader = (VARIABLE_HEADER *) (GetVariableDataPtr (Variable) + Variable->DataSize + GET_PAD_SIZE (Variable->DataSize));

+  VarHeader = (VARIABLE_HEADER *) HEADER_ALIGN ((UINTN) GetVariableDataPtr (Variable) + Variable->DataSize + GET_PAD_SIZE (Variable->DataSize));

 

   return VarHeader;

 }

@@ -999,12 +999,12 @@ UpdateVariable (
 

     NextVariable  = (VARIABLE_HEADER *) (UINT8 *) (mVariableModuleGlobal->NonVolatileLastVariableOffset

                       + (UINTN) Global->NonVolatileVariableBase);

-    mVariableModuleGlobal->NonVolatileLastVariableOffset += VarSize;

+    mVariableModuleGlobal->NonVolatileLastVariableOffset += HEADER_ALIGN (VarSize);

 

     if ((Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) != 0) {

-      mVariableModuleGlobal->HwErrVariableTotalSize += VarSize;

+      mVariableModuleGlobal->HwErrVariableTotalSize += HEADER_ALIGN (VarSize);

     } else {

-      mVariableModuleGlobal->CommonVariableTotalSize += VarSize;

+      mVariableModuleGlobal->CommonVariableTotalSize += HEADER_ALIGN (VarSize);

     }

   } else {

     if ((UINT32) (VarSize + mVariableModuleGlobal->VolatileLastVariableOffset) >

@@ -1016,7 +1016,7 @@ UpdateVariable (
 

     NextVariable    = (VARIABLE_HEADER *) (UINT8 *) (mVariableModuleGlobal->VolatileLastVariableOffset

                         + (UINTN) Global->VolatileVariableBase);

-    mVariableModuleGlobal->VolatileLastVariableOffset += VarSize;

+    mVariableModuleGlobal->VolatileLastVariableOffset += HEADER_ALIGN (VarSize);

   }

 

   NextVariable->StartId     = VARIABLE_DATA;

@@ -1609,10 +1609,15 @@ InitializeVariableStore (
   IN  BOOLEAN               VolatileStore

   )

 {

+  EFI_STATUS            Status;

   VARIABLE_STORE_HEADER *VariableStore;

   BOOLEAN               FullyInitializeStore;

   EFI_PHYSICAL_ADDRESS  *VariableBase;

   UINTN                 *LastVariableOffset;

+  VARIABLE_STORE_HEADER *VariableStoreHeader;

+  VARIABLE_HEADER       *Variable;

+  VOID                  *VariableData;

+  EFI_HOB_GUID_TYPE     *GuidHob;

 

   FullyInitializeStore = TRUE;

 

@@ -1681,6 +1686,44 @@ InitializeVariableStore (
   VariableStore->Reserved   = 0;

   VariableStore->Reserved1  = 0;

 

+  if (!VolatileStore) {

+    //

+    // Get HOB variable store.

+    //

+    GuidHob = GetFirstGuidHob (&gEfiVariableGuid);

+    if (GuidHob != NULL) {

+      VariableStoreHeader = (VARIABLE_STORE_HEADER *) GET_GUID_HOB_DATA (GuidHob);

+      if (CompareGuid (&VariableStoreHeader->Signature, &gEfiVariableGuid) &&

+          (VariableStoreHeader->Format == VARIABLE_STORE_FORMATTED) &&

+          (VariableStoreHeader->State == VARIABLE_STORE_HEALTHY)

+         ) {

+        DEBUG ((EFI_D_INFO, "HOB Variable Store appears to be valid.\n"));

+        //

+        // Flush the HOB variable to Emulation Variable storage.

+        //

+        for ( Variable = (VARIABLE_HEADER *) (VariableStoreHeader + 1)

+            ; (Variable < GetEndPointer (VariableStoreHeader) && (Variable != NULL))

+            ; Variable = GetNextVariablePtr (Variable)

+            ) {

+          ASSERT (Variable->State == VAR_ADDED);

+          ASSERT ((Variable->Attributes & EFI_VARIABLE_NON_VOLATILE) != 0);

+          VariableData = GetVariableDataPtr (Variable);

+          Status = EmuSetVariable (

+                     GET_VARIABLE_NAME_PTR (Variable),

+                     &Variable->VendorGuid,

+                     Variable->Attributes,

+                     Variable->DataSize,

+                     VariableData,

+                     &mVariableModuleGlobal->VariableGlobal[Physical],

+                     &mVariableModuleGlobal->VolatileLastVariableOffset,

+                     &mVariableModuleGlobal->NonVolatileLastVariableOffset

+                     );

+          ASSERT_EFI_ERROR (Status);

+        }

+      }

+    }

+  }

+

   return EFI_SUCCESS;

 }

 

diff --git a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf
index 5dfb3c0..19ceb3d 100644
--- a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf
+++ b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf
@@ -2,7 +2,7 @@
 # Emulation Variable for EFI_RUNTIME_SERVICES.

 #

 # This module provides three EFI_RUNTIME_SERVICES: SetVariable, GetVariable, GetNextVariableName

-# Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>

+# Copyright (c) 2006 - 2011, 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

@@ -48,6 +48,7 @@
   DebugLib

   MemoryAllocationLib

   BaseMemoryLib

+  HobLib

 

 

 [Protocols]

diff --git a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/Variable.h b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/Variable.h
index b4b2fbb..81a4568 100644
--- a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/Variable.h
+++ b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/Variable.h
@@ -3,7 +3,7 @@
   The internal header file includes the common header files, defines

   internal structure and functions used by EmuVariable module.

 

-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>

+Copyright (c) 2006 - 2011, 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

 which accompanies this distribution.  The full text of the license may be found at

@@ -31,6 +31,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Library/UefiLib.h>

 #include <Library/BaseLib.h>

 #include <Library/PcdLib.h>

+#include <Library/HobLib.h>

 #include <Guid/VariableFormat.h>

 #include <Guid/GlobalVariable.h>

 

diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
index 21432c6..14d5d9c 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
@@ -970,7 +970,7 @@ GetLangFromSupportedLangCodes (
     CompareLength = ISO_639_2_ENTRY_SIZE;

     mVariableModuleGlobal->Lang[CompareLength] = '\0';

     return CopyMem (mVariableModuleGlobal->Lang, SupportedLang + Index * CompareLength, CompareLength);

-      

+

   } else {

     while (TRUE) {

       //

@@ -2421,7 +2421,12 @@ VariableCommonInitialize (
   //

   GuidHob = GetFirstGuidHob (&gEfiVariableGuid);

   if (GuidHob != NULL) {

-    mVariableModuleGlobal->VariableGlobal.HobVariableBase = (EFI_PHYSICAL_ADDRESS) (UINTN) GET_GUID_HOB_DATA (GuidHob);

+    VariableStoreHeader = GET_GUID_HOB_DATA (GuidHob);

+    if (GetVariableStoreStatus (VariableStoreHeader) == EfiValid) {

+      mVariableModuleGlobal->VariableGlobal.HobVariableBase = (EFI_PHYSICAL_ADDRESS) (UINTN) VariableStoreHeader;

+    } else {

+      DEBUG ((EFI_D_ERROR, "HOB Variable Store header is corrupted!\n"));

+    }

   }

 

   //