1 files changed, 140 insertions, 0 deletions
diff --git a/OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.h b/OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.h
new file mode 100644
index 0000000000..d4e0065202
--- /dev/null
+++ b/OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.h
@@ -0,0 +1,140 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. 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        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  FwBlockService.h
+  
+Abstract:
+
+  Firmware volume block driver for Intel Firmware Hub (FWH) device
+
+--*/
+
+#ifndef _FW_BLOCK_SERVICE_H
+#define _FW_BLOCK_SERVICE_H
+
+//
+// Fvb Protocol instance data
+//
+#define FVB_DEVICE_FROM_THIS(a)         CR (a, EFI_FW_VOL_BLOCK_DEVICE, FwVolBlockInstance, FVB_DEVICE_SIGNATURE)
+#define FVB_DEVICE_SIGNATURE            SIGNATURE_32 ('F', 'V', 'B', 'N')
+
+#pragma pack (1)
+
+typedef struct {
+
+  EFI_FIRMWARE_VOLUME_HEADER FvHdr;
+  EFI_FV_BLOCK_MAP_ENTRY     EndBlockMap;
+  VARIABLE_STORE_HEADER      VarHdr;
+
+} FVB_FV_HDR_AND_VARS_TEMPLATE;
+
+typedef struct {
+  MEMMAP_DEVICE_PATH        MemMapDevPath;
+  EFI_DEVICE_PATH_PROTOCOL  EndDevPath;
+} FV_DEVICE_PATH;
+
+#pragma pack ()
+
+typedef struct {
+  UINTN                               Signature;
+  FV_DEVICE_PATH                      DevicePath;
+  VOID                                *BufferPtr;
+  UINTN                               BlockSize;
+  UINTN                               Size;
+  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  FwVolBlockInstance;
+} EFI_FW_VOL_BLOCK_DEVICE;
+
+
+//
+// Constants
+//
+#define EMU_FVB_BLOCK_SIZE (FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize))
+#define EMU_FVB_SIZE (2 * FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize))
+#define FTW_WRITE_QUEUE_SIZE \
+  (FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) - \
+   sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER))
+#define EMU_FV_HEADER_LENGTH OFFSET_OF (FVB_FV_HDR_AND_VARS_TEMPLATE, VarHdr)
+
+#define NOT_ERASED_BIT 0
+#define ERASED_BIT     1
+#define ERASED_UINT8   0xff
+#define ERASED_UINT32  0xffffffff
+
+//
+// Protocol APIs
+//
+EFI_STATUS
+EFIAPI
+FvbProtocolGetAttributes (
+  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
+  OUT       EFI_FVB_ATTRIBUTES_2                *Attributes
+  )
+;
+
+EFI_STATUS
+EFIAPI
+FvbProtocolSetAttributes (
+  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
+  IN OUT    EFI_FVB_ATTRIBUTES_2                *Attributes
+  )
+;
+
+EFI_STATUS
+EFIAPI
+FvbProtocolGetPhysicalAddress (
+  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
+  OUT       EFI_PHYSICAL_ADDRESS                *Address
+  )
+;
+
+EFI_STATUS
+EFIAPI
+FvbProtocolGetBlockSize (
+  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
+  IN        EFI_LBA                             Lba,
+  OUT       UINTN                               *BlockSize,
+  OUT       UINTN                               *NumberOfBlocks
+  )
+;
+
+EFI_STATUS
+EFIAPI
+FvbProtocolRead (
+  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
+  IN        EFI_LBA                             Lba,
+  IN        UINTN                               Offset,
+  IN OUT    UINTN                               *NumBytes,
+  IN OUT    UINT8                               *Buffer
+  )
+;
+
+EFI_STATUS
+EFIAPI
+FvbProtocolWrite (
+  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
+  IN        EFI_LBA                             Lba,
+  IN        UINTN                               Offset,
+  IN OUT    UINTN                               *NumBytes,
+  IN        UINT8                               *Buffer
+  )
+;
+
+EFI_STATUS
+EFIAPI
+FvbProtocolEraseBlocks (
+  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
+  ...
+  )
+;
+
+#endif