OvmfPkg EMU FVB: Add 2 functions to PlatformFvbLib

Add PlatformFvbDataRead and PlatformFvbBlocksErased functions.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11241 6f19259b-4bc3-4df7-8a09-765794883524

OvmfPkg/Library/PlatformFvbLibNull/PlatformFvbLibNull.c

@@ -16,6 +16,32 @@
 #include <Library/PlatformFvbLib.h>
 
 
+/**
+  This function will be called following a call to the
+  EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL Read function.
+
+  @param[in] This     The EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL instance.
+  @param[in] Lba      The starting logical block index
+                      from which to read.
+  @param[in] Offset   Offset into the block at which to begin reading.
+  @param[in] NumBytes The number of bytes read.
+  @param[in] Buffer   Pointer to the buffer that was read, and will be
+                      returned to the caller.
+
+**/
+VOID
+EFIAPI
+PlatformFvbDataRead (
+  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL *This,
+  IN        EFI_LBA                             Lba,
+  IN        UINTN                               Offset,
+  IN        UINTN                               NumBytes,
+  IN        UINT8                               *Buffer
+  )
+{
+}
+
+
 /**
   This function will be called following a call to the
   EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL Write function.
@@ -40,3 +66,24 @@ PlatformFvbDataWritten (
 }
 
 
+/**
+  This function will be called following a call to the
+  EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL Erase function.
+
+  @param This   Indicates the EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL
+                instance.
+  @param List   The variable argument list as documented for
+                the EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL Erase
+                function.
+
+**/
+VOID
+EFIAPI
+PlatformFvbBlocksErased (
+  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL *This,
+  IN  VA_LIST       List
+  )
+{
+}
+
+