diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.h | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.h')
| -rw-r--r-- | roms/edk2/OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/roms/edk2/OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.h b/roms/edk2/OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.h new file mode 100644 index 000000000..4cf8a38ba --- /dev/null +++ b/roms/edk2/OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.h @@ -0,0 +1,140 @@ +/*++
+
+Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+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 \
+ EFI_PAGE_SIZE
+#define EMU_FVB_NUM_SPARE_BLOCKS \
+ EFI_SIZE_TO_PAGES ((UINTN)FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize))
+#define EMU_FVB_NUM_TOTAL_BLOCKS \
+ (2 * EMU_FVB_NUM_SPARE_BLOCKS)
+#define EMU_FVB_SIZE \
+ (EMU_FVB_NUM_TOTAL_BLOCKS * EMU_FVB_BLOCK_SIZE)
+#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
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