LXR qemu/include/hw/xen/xen-block.h

   1/*
   2 * Copyright (c) 2018  Citrix Systems Inc.
   3 *
   4 * This work is licensed under the terms of the GNU GPL, version 2 or later.
   5 * See the COPYING file in the top-level directory.
   6 */
   7
   8#ifndef HW_XEN_BLOCK_H
   9#define HW_XEN_BLOCK_H
  10
  11#include "hw/xen/xen-bus.h"
  12#include "hw/block/block.h"
  13#include "hw/block/dataplane/xen-block.h"
  14#include "sysemu/iothread.h"
  15
  16typedef enum XenBlockVdevType {
  17    XEN_BLOCK_VDEV_TYPE_INVALID,
  18    XEN_BLOCK_VDEV_TYPE_DP,
  19    XEN_BLOCK_VDEV_TYPE_XVD,
  20    XEN_BLOCK_VDEV_TYPE_HD,
  21    XEN_BLOCK_VDEV_TYPE_SD,
  22    XEN_BLOCK_VDEV_TYPE__MAX
  23} XenBlockVdevType;
  24
  25typedef struct XenBlockVdev {
  26    XenBlockVdevType type;
  27    unsigned long disk;
  28    unsigned long partition;
  29    unsigned long number;
  30} XenBlockVdev;
  31
  32
  33typedef struct XenBlockProperties {
  34    XenBlockVdev vdev;
  35    BlockConf conf;
  36    unsigned int max_ring_page_order;
  37    IOThread *iothread;
  38} XenBlockProperties;
  39
  40typedef struct XenBlockDrive {
  41    char *id;
  42    char *node_name;
  43} XenBlockDrive;
  44
  45typedef struct XenBlockIOThread {
  46    char *id;
  47} XenBlockIOThread;
  48
  49typedef struct XenBlockDevice {
  50    XenDevice xendev;
  51    XenBlockProperties props;
  52    const char *device_type;
  53    unsigned int info;
  54    XenBlockDataPlane *dataplane;
  55    XenBlockDrive *drive;
  56    XenBlockIOThread *iothread;
  57} XenBlockDevice;
  58
  59typedef void (*XenBlockDeviceRealize)(XenBlockDevice *blockdev, Error **errp);
  60typedef void (*XenBlockDeviceUnrealize)(XenBlockDevice *blockdev, Error **errp);
  61
  62typedef struct XenBlockDeviceClass {
  63    /*< private >*/
  64    XenDeviceClass parent_class;
  65    /*< public >*/
  66    XenBlockDeviceRealize realize;
  67    XenBlockDeviceUnrealize unrealize;
  68} XenBlockDeviceClass;
  69
  70#define TYPE_XEN_BLOCK_DEVICE  "xen-block"
  71#define XEN_BLOCK_DEVICE(obj) \
  72     OBJECT_CHECK(XenBlockDevice, (obj), TYPE_XEN_BLOCK_DEVICE)
  73#define XEN_BLOCK_DEVICE_CLASS(class) \
  74     OBJECT_CLASS_CHECK(XenBlockDeviceClass, (class), TYPE_XEN_BLOCK_DEVICE)
  75#define XEN_BLOCK_DEVICE_GET_CLASS(obj) \
  76     OBJECT_GET_CLASS(XenBlockDeviceClass, (obj), TYPE_XEN_BLOCK_DEVICE)
  77
  78typedef struct XenDiskDevice {
  79    XenBlockDevice blockdev;
  80} XenDiskDevice;
  81
  82#define TYPE_XEN_DISK_DEVICE  "xen-disk"
  83#define XEN_DISK_DEVICE(obj) \
  84     OBJECT_CHECK(XenDiskDevice, (obj), TYPE_XEN_DISK_DEVICE)
  85
  86typedef struct XenCDRomDevice {
  87    XenBlockDevice blockdev;
  88} XenCDRomDevice;
  89
  90#define TYPE_XEN_CDROM_DEVICE  "xen-cdrom"
  91#define XEN_CDROM_DEVICE(obj) \
  92     OBJECT_CHECK(XenCDRomDevice, (obj), TYPE_XEN_CDROM_DEVICE)
  93
  94#endif /* HW_XEN_BLOCK_H */
  95