OvmfPkg/XenBusDxe/XenBus.h

   1 /** @file
   2   XenBus Bus driver declarations.
   3
   4   Copyright (C) 2014, Citrix Ltd.
   5
   6   SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #ifndef _XEN_XENBUS_XENBUSB_H
  11 #define _XEN_XENBUS_XENBUSB_H
  12
  13 #include "XenBusDxe.h"
  14
  15 #define XENBUS_DEVICE_PATH_TYPE_VBD  0x1
  16 struct _XENBUS_DEVICE_PATH {
  17   VENDOR_DEVICE_PATH    Vendor;
  18   UINT8                 Type;
  19   UINT16                DeviceId;
  20 };
  21
  22 /**
  23   Perform XenBus bus enumeration and install protocol for children.
  24
  25   Caller should ensure that it is the only one to call this function. This
  26   function cannot be called concurrently.
  27
  28   @param Dev   A XENBUS_DEVICE instance.
  29
  30   @return      On success, XENSTORE_STATUS_SUCCESS. Otherwise an errno value
  31                indicating the type of failure.
  32 **/
  33 XENSTORE_STATUS
  34 XenBusEnumerateBus (
  35   XENBUS_DEVICE  *Dev
  36   );
  37
  38 #endif /* _XEN_XENBUS_XENBUSB_H */