1 #ifndef HW_XEN_LEGACY_BACKEND_H
2 #define HW_XEN_LEGACY_BACKEND_H
4 #include "hw/xen/xen_common.h"
5 #include "hw/xen/xen_pvdev.h"
6 #include "sysemu/sysemu.h"
9 #define TYPE_XENSYSDEV "xen-sysdev"
10 #define TYPE_XENSYSBUS "xen-sysbus"
11 #define TYPE_XENBACKEND "xen-backend"
13 #define XENBACKEND_DEVICE(obj) \
14 OBJECT_CHECK(XenLegacyDevice, (obj), TYPE_XENBACKEND)
17 extern struct xs_handle
*xenstore
;
18 extern const char *xen_protocol
;
19 extern DeviceState
*xen_sysdev
;
20 extern BusState
*xen_sysbus
;
22 int xenstore_mkdir(char *path
, int p
);
23 int xenstore_write_be_str(struct XenLegacyDevice
*xendev
, const char *node
,
25 int xenstore_write_be_int(struct XenLegacyDevice
*xendev
, const char *node
,
27 int xenstore_write_be_int64(struct XenLegacyDevice
*xendev
, const char *node
,
29 char *xenstore_read_be_str(struct XenLegacyDevice
*xendev
, const char *node
);
30 int xenstore_read_be_int(struct XenLegacyDevice
*xendev
, const char *node
,
32 void xenstore_update_fe(char *watch
, struct XenLegacyDevice
*xendev
);
33 void xenstore_update_be(char *watch
, char *type
, int dom
,
34 struct XenDevOps
*ops
);
35 char *xenstore_read_fe_str(struct XenLegacyDevice
*xendev
, const char *node
);
36 int xenstore_read_fe_int(struct XenLegacyDevice
*xendev
, const char *node
,
38 int xenstore_read_fe_uint64(struct XenLegacyDevice
*xendev
, const char *node
,
41 void xen_be_check_state(struct XenLegacyDevice
*xendev
);
43 /* xen backend driver bits */
44 int xen_be_init(void);
45 void xen_be_register_common(void);
46 int xen_be_register(const char *type
, struct XenDevOps
*ops
);
47 int xen_be_set_state(struct XenLegacyDevice
*xendev
, enum xenbus_state state
);
48 int xen_be_bind_evtchn(struct XenLegacyDevice
*xendev
);
49 void xen_be_set_max_grant_refs(struct XenLegacyDevice
*xendev
,
50 unsigned int nr_refs
);
51 void *xen_be_map_grant_refs(struct XenLegacyDevice
*xendev
, uint32_t *refs
,
52 unsigned int nr_refs
, int prot
);
53 void xen_be_unmap_grant_refs(struct XenLegacyDevice
*xendev
, void *ptr
,
54 unsigned int nr_refs
);
56 typedef struct XenGrantCopySegment
{
65 } XenGrantCopySegment
;
67 int xen_be_copy_grant_refs(struct XenLegacyDevice
*xendev
,
68 bool to_domain
, XenGrantCopySegment segs
[],
69 unsigned int nr_segs
);
71 static inline void *xen_be_map_grant_ref(struct XenLegacyDevice
*xendev
,
72 uint32_t ref
, int prot
)
74 return xen_be_map_grant_refs(xendev
, &ref
, 1, prot
);
77 static inline void xen_be_unmap_grant_ref(struct XenLegacyDevice
*xendev
,
80 return xen_be_unmap_grant_refs(xendev
, ptr
, 1);
83 /* actual backend drivers */
84 extern struct XenDevOps xen_console_ops
; /* xen_console.c */
85 extern struct XenDevOps xen_kbdmouse_ops
; /* xen_framebuffer.c */
86 extern struct XenDevOps xen_framebuffer_ops
; /* xen_framebuffer.c */
87 extern struct XenDevOps xen_blkdev_ops
; /* xen_disk.c */
89 extern struct XenDevOps xen_9pfs_ops
; /* xen-9p-backend.c */
91 extern struct XenDevOps xen_netdev_ops
; /* xen_nic.c */
92 #ifdef CONFIG_USB_LIBUSB
93 extern struct XenDevOps xen_usb_ops
; /* xen-usb.c */
96 /* configuration (aka xenbus setup) */
97 void xen_config_cleanup(void);
98 int xen_config_dev_blk(DriveInfo
*disk
);
99 int xen_config_dev_nic(NICInfo
*nic
);
100 int xen_config_dev_vfb(int vdev
, const char *type
);
101 int xen_config_dev_vkbd(int vdev
);
102 int xen_config_dev_console(int vdev
);
104 #endif /* HW_XEN_LEGACY_BACKEND_H */