tests/libqos/virtio.h

   1 /*
   2  * libqos virtio definitions
   3  *
   4  * Copyright (c) 2014 Marc Marí
   5  *
   6  * This work is licensed under the terms of the GNU GPL, version 2 or later.
   7  * See the COPYING file in the top-level directory.
   8  */
   9
  10 #ifndef LIBQOS_VIRTIO_H
  11 #define LIBQOS_VIRTIO_H
  12
  13 #define QVIRTIO_VENDOR_ID       0x1AF4
  14
  15 #define QVIRTIO_RESET           0x0
  16 #define QVIRTIO_ACKNOWLEDGE     0x1
  17 #define QVIRTIO_DRIVER          0x2
  18
  19 #define QVIRTIO_NET_DEVICE_ID   0x1
  20 #define QVIRTIO_BLK_DEVICE_ID   0x2
  21
  22 typedef struct QVirtioDevice {
  23     /* Device type */
  24     uint16_t device_type;
  25 } QVirtioDevice;
  26
  27 typedef struct QVirtioBus {
  28     uint8_t (*config_readb)(QVirtioDevice *d, void *addr);
  29     uint16_t (*config_readw)(QVirtioDevice *d, void *addr);
  30     uint32_t (*config_readl)(QVirtioDevice *d, void *addr);
  31     uint64_t (*config_readq)(QVirtioDevice *d, void *addr);
  32
  33     /* Get status of the device */
  34     uint8_t (*get_status)(QVirtioDevice *d);
  35
  36     /* Set status of the device  */
  37     void (*set_status)(QVirtioDevice *d, uint8_t status);
  38 } QVirtioBus;
  39
  40 uint8_t qvirtio_config_readb(const QVirtioBus *bus, QVirtioDevice *d,
  41                                                                 void *addr);
  42 uint16_t qvirtio_config_readw(const QVirtioBus *bus, QVirtioDevice *d,
  43                                                                 void *addr);
  44 uint32_t qvirtio_config_readl(const QVirtioBus *bus, QVirtioDevice *d,
  45                                                                 void *addr);
  46 uint64_t qvirtio_config_readq(const QVirtioBus *bus, QVirtioDevice *d,
  47                                                                 void *addr);
  48
  49 void qvirtio_reset(const QVirtioBus *bus, QVirtioDevice *d);
  50 void qvirtio_set_acknowledge(const QVirtioBus *bus, QVirtioDevice *d);
  51 void qvirtio_set_driver(const QVirtioBus *bus, QVirtioDevice *d);
  52
  53 #endif