OvmfPkg/XenBusDxe/XenBus.h

   1 /** @file
   2   XenBus Bus driver declarations.
   3
   4   Copyright (C) 2014, Citrix Ltd.
   5
   6   This program and the accompanying materials
   7   are licensed and made available under the terms and conditions of the BSD License
   8   which accompanies this distribution.  The full text of the license may be found at
   9   http://opensource.org/licenses/bsd-license.php
  10
  11   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15 #ifndef _XEN_XENBUS_XENBUSB_H
  16 #define _XEN_XENBUS_XENBUSB_H
  17
  18 #include "XenBusDxe.h"
  19
  20 #define XENBUS_DEVICE_PATH_TYPE_VBD 0x1
  21 struct _XENBUS_DEVICE_PATH {
  22   VENDOR_DEVICE_PATH  Vendor;
  23   UINT8               Type;
  24   UINT16              DeviceId;
  25 };
  26
  27
  28 /**
  29   Perform XenBus bus enumeration and install protocol for children.
  30
  31   Caller should ensure that it is the only one to call this function. This
  32   function cannot be called concurrently.
  33
  34   @param Dev   A XENBUS_DEVICE instance.
  35
  36   @return      On success, XENSTORE_STATUS_SUCCESS. Otherwise an errno value
  37                indicating the type of failure.
  38 **/
  39 XENSTORE_STATUS
  40 XenBusEnumerateBus (
  41   XENBUS_DEVICE *Dev
  42   );
  43
  44 #endif /* _XEN_XENBUS_XENBUSB_H */