qemu

FORK: QEMU emulator
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xen-block.h (2143B)

      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 #include "qom/object.h"
     16 
     17 typedef enum XenBlockVdevType {
     18     XEN_BLOCK_VDEV_TYPE_INVALID,
     19     XEN_BLOCK_VDEV_TYPE_DP,
     20     XEN_BLOCK_VDEV_TYPE_XVD,
     21     XEN_BLOCK_VDEV_TYPE_HD,
     22     XEN_BLOCK_VDEV_TYPE_SD,
     23     XEN_BLOCK_VDEV_TYPE__MAX
     24 } XenBlockVdevType;
     25 
     26 typedef struct XenBlockVdev {
     27     XenBlockVdevType type;
     28     unsigned long disk;
     29     unsigned long partition;
     30     unsigned long number;
     31 } XenBlockVdev;
     32 
     33 
     34 typedef struct XenBlockProperties {
     35     XenBlockVdev vdev;
     36     BlockConf conf;
     37     unsigned int max_ring_page_order;
     38     IOThread *iothread;
     39 } XenBlockProperties;
     40 
     41 typedef struct XenBlockDrive {
     42     char *id;
     43     char *node_name;
     44 } XenBlockDrive;
     45 
     46 typedef struct XenBlockIOThread {
     47     char *id;
     48 } XenBlockIOThread;
     49 
     50 struct XenBlockDevice {
     51     XenDevice xendev;
     52     XenBlockProperties props;
     53     const char *device_type;
     54     unsigned int info;
     55     XenBlockDataPlane *dataplane;
     56     XenBlockDrive *drive;
     57     XenBlockIOThread *iothread;
     58 };
     59 typedef struct XenBlockDevice XenBlockDevice;
     60 
     61 typedef void (*XenBlockDeviceRealize)(XenBlockDevice *blockdev, Error **errp);
     62 typedef void (*XenBlockDeviceUnrealize)(XenBlockDevice *blockdev);
     63 
     64 struct XenBlockDeviceClass {
     65     /*< private >*/
     66     XenDeviceClass parent_class;
     67     /*< public >*/
     68     XenBlockDeviceRealize realize;
     69     XenBlockDeviceUnrealize unrealize;
     70 };
     71 
     72 #define TYPE_XEN_BLOCK_DEVICE  "xen-block"
     73 OBJECT_DECLARE_TYPE(XenBlockDevice, XenBlockDeviceClass, XEN_BLOCK_DEVICE)
     74 
     75 struct XenDiskDevice {
     76     XenBlockDevice blockdev;
     77 };
     78 
     79 #define TYPE_XEN_DISK_DEVICE  "xen-disk"
     80 OBJECT_DECLARE_SIMPLE_TYPE(XenDiskDevice, XEN_DISK_DEVICE)
     81 
     82 struct XenCDRomDevice {
     83     XenBlockDevice blockdev;
     84 };
     85 
     86 #define TYPE_XEN_CDROM_DEVICE  "xen-cdrom"
     87 OBJECT_DECLARE_SIMPLE_TYPE(XenCDRomDevice, XEN_CDROM_DEVICE)
     88 
     89 #endif /* HW_XEN_BLOCK_H */