| 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 "system/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 */ |