ppc/pnv: Add a HIOMAP erase command
[qemu.git] / include / hw / xen / xen-legacy-backend.h
1 #ifndef HW_XEN_LEGACY_BACKEND_H
2 #define HW_XEN_LEGACY_BACKEND_H
3
4 #include "hw/xen/xen_common.h"
5 #include "hw/xen/xen_pvdev.h"
6 #include "net/net.h"
7
8 #define TYPE_XENSYSDEV "xen-sysdev"
9 #define TYPE_XENSYSBUS "xen-sysbus"
10 #define TYPE_XENBACKEND "xen-backend"
11
12 typedef struct XenLegacyDevice XenLegacyDevice;
13 #define XENBACKEND_DEVICE(obj) \
14 OBJECT_CHECK(XenLegacyDevice, (obj), TYPE_XENBACKEND)
15
16 /* variables */
17 extern struct xs_handle *xenstore;
18 extern const char *xen_protocol;
19 extern DeviceState *xen_sysdev;
20 extern BusState *xen_sysbus;
21
22 int xenstore_mkdir(char *path, int p);
23 int xenstore_write_be_str(struct XenLegacyDevice *xendev, const char *node,
24 const char *val);
25 int xenstore_write_be_int(struct XenLegacyDevice *xendev, const char *node,
26 int ival);
27 int xenstore_write_be_int64(struct XenLegacyDevice *xendev, const char *node,
28 int64_t ival);
29 char *xenstore_read_be_str(struct XenLegacyDevice *xendev, const char *node);
30 int xenstore_read_be_int(struct XenLegacyDevice *xendev, const char *node,
31 int *ival);
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,
37 int *ival);
38 int xenstore_read_fe_uint64(struct XenLegacyDevice *xendev, const char *node,
39 uint64_t *uval);
40
41 void xen_be_check_state(struct XenLegacyDevice *xendev);
42
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);
55
56 typedef struct XenGrantCopySegment {
57 union {
58 void *virt;
59 struct {
60 uint32_t ref;
61 off_t offset;
62 } foreign;
63 } source, dest;
64 size_t len;
65 } XenGrantCopySegment;
66
67 int xen_be_copy_grant_refs(struct XenLegacyDevice *xendev,
68 bool to_domain, XenGrantCopySegment segs[],
69 unsigned int nr_segs);
70
71 static inline void *xen_be_map_grant_ref(struct XenLegacyDevice *xendev,
72 uint32_t ref, int prot)
73 {
74 return xen_be_map_grant_refs(xendev, &ref, 1, prot);
75 }
76
77 static inline void xen_be_unmap_grant_ref(struct XenLegacyDevice *xendev,
78 void *ptr)
79 {
80 return xen_be_unmap_grant_refs(xendev, ptr, 1);
81 }
82
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 */
88 #ifdef CONFIG_VIRTFS
89 extern struct XenDevOps xen_9pfs_ops; /* xen-9p-backend.c */
90 #endif
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 */
94 #endif
95
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);
103
104 #endif /* HW_XEN_LEGACY_BACKEND_H */