kvm/user/iotable.h

   1 /*
   2  * Kernel-based Virtual Machine test driver
   3  *
   4  * This test driver provides a simple way of testing kvm, without a full
   5  * device model.
   6  *
   7  * Copyright (C) 2006 Qumranet
   8  *
   9  * Authors:
  10  *
  11  *  Avi Kivity <avi@qumranet.com>
  12  *  Yaniv Kamay <yaniv@qumranet.com>
  13  *
  14  * This work is licensed under the GNU LGPL license, version 2.
  15  */
  16
  17 #include <stdint.h>
  18
  19 #define MAX_IO_TABLE    50
  20
  21 typedef int (io_table_handler_t)(void *, int, int, uint64_t, uint64_t *);
  22
  23 struct io_table_entry
  24 {
  25         uint64_t start;
  26         uint64_t end;
  27         io_table_handler_t *handler;
  28         void *opaque;
  29 };
  30
  31 struct io_table
  32 {
  33         int nr_entries;
  34         struct io_table_entry entries[MAX_IO_TABLE];
  35 };
  36
  37 struct io_table_entry *io_table_lookup(struct io_table *io_table,
  38                                        uint64_t addr);
  39 int io_table_register(struct io_table *io_table, uint64_t start, uint64_t size,
  40                       io_table_handler_t *handler, void *opaque);