1 files changed, 101 insertions, 0 deletions
diff --git a/OvmfPkg/XenPvBlkDxe/BlockFront.h b/OvmfPkg/XenPvBlkDxe/BlockFront.h
new file mode 100644
index 0000000000..867b39f044
--- /dev/null
+++ b/OvmfPkg/XenPvBlkDxe/BlockFront.h
@@ -0,0 +1,101 @@
+/** @file
+  BlockFront functions and types declarations.
+
+  Copyright (C) 2014, Citrix Ltd.
+
+  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.
+
+**/
+#include "XenPvBlkDxe.h"
+
+#include <IndustryStandard/Xen/event_channel.h>
+#include <IndustryStandard/Xen/io/blkif.h>
+
+typedef struct _XEN_BLOCK_FRONT_DEVICE XEN_BLOCK_FRONT_DEVICE;
+typedef struct _XEN_BLOCK_FRONT_IO XEN_BLOCK_FRONT_IO;
+
+struct _XEN_BLOCK_FRONT_IO
+{
+  XEN_BLOCK_FRONT_DEVICE  *Dev;
+  UINT8                   *Buffer;
+  UINTN                   Size;
+  UINTN                   Sector; ///< 512 bytes sector.
+
+  grant_ref_t             GrantRef[BLKIF_MAX_SEGMENTS_PER_REQUEST];
+  INT32                   NumRef;
+
+  EFI_STATUS              Status;
+};
+
+typedef struct
+{
+  UINT64    Sectors;
+  UINT32    SectorSize;
+  UINT32    VDiskInfo;
+  BOOLEAN   ReadWrite;
+  BOOLEAN   CdRom;
+  BOOLEAN   FeatureBarrier;
+  BOOLEAN   FeatureFlushCache;
+} XEN_BLOCK_FRONT_MEDIA_INFO;
+
+#define XEN_BLOCK_FRONT_SIGNATURE SIGNATURE_32 ('X', 'p', 'v', 'B')
+struct _XEN_BLOCK_FRONT_DEVICE {
+  UINT32                      Signature;
+  EFI_BLOCK_IO_PROTOCOL       BlockIo;
+  domid_t                     DomainId;
+
+  blkif_front_ring_t          Ring;
+  grant_ref_t                 RingRef;
+  evtchn_port_t               EventChannel;
+  blkif_vdev_t                DeviceId;
+
+  CONST CHAR8                 *NodeName;
+  XEN_BLOCK_FRONT_MEDIA_INFO  MediaInfo;
+
+  VOID                        *StateWatchToken;
+
+  XENBUS_PROTOCOL             *XenBusIo;
+};
+
+#define XEN_BLOCK_FRONT_FROM_BLOCK_IO(b) \
+  CR (b, XEN_BLOCK_FRONT_DEVICE, BlockIo, XEN_BLOCK_FRONT_SIGNATURE)
+
+EFI_STATUS
+XenPvBlockFrontInitialization (
+  IN  XENBUS_PROTOCOL  *XenBusIo,
+  IN  CONST CHAR8      *NodeName,
+  OUT XEN_BLOCK_FRONT_DEVICE **DevPtr
+  );
+
+VOID
+XenPvBlockFrontShutdown (
+  IN XEN_BLOCK_FRONT_DEVICE *Dev
+  );
+
+VOID
+XenPvBlockAsyncIo (
+  IN OUT XEN_BLOCK_FRONT_IO *IoData,
+  IN     BOOLEAN            IsWrite
+  );
+
+EFI_STATUS
+XenPvBlockIo (
+  IN OUT XEN_BLOCK_FRONT_IO *IoData,
+  IN     BOOLEAN            IsWrite
+  );
+
+VOID
+XenPvBlockAsyncIoPoll (
+  IN XEN_BLOCK_FRONT_DEVICE *Dev
+  );
+
+VOID
+XenPvBlockSync (
+  IN XEN_BLOCK_FRONT_DEVICE *Dev
+  );