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d94f9486 AL |
1 | #ifndef QEMU_HW_XEN_BACKEND_H |
2 | #define QEMU_HW_XEN_BACKEND_H 1 | |
3 | ||
0d09e41a | 4 | #include "hw/xen/xen_common.h" |
9c17d615 | 5 | #include "sysemu/sysemu.h" |
1422e32d | 6 | #include "net/net.h" |
d94f9486 AL |
7 | |
8 | /* ------------------------------------------------------------- */ | |
9 | ||
10 | #define XEN_BUFSIZE 1024 | |
11 | ||
12 | struct XenDevice; | |
13 | ||
14 | /* driver uses grant tables -> open gntdev device (xendev->gnttabdev) */ | |
15 | #define DEVOPS_FLAG_NEED_GNTDEV 1 | |
16 | /* don't expect frontend doing correct state transitions (aka console quirk) */ | |
17 | #define DEVOPS_FLAG_IGNORE_STATE 2 | |
18 | ||
19 | struct XenDevOps { | |
20 | size_t size; | |
21 | uint32_t flags; | |
22 | void (*alloc)(struct XenDevice *xendev); | |
23 | int (*init)(struct XenDevice *xendev); | |
384087b2 JH |
24 | int (*initialise)(struct XenDevice *xendev); |
25 | void (*connected)(struct XenDevice *xendev); | |
d94f9486 AL |
26 | void (*event)(struct XenDevice *xendev); |
27 | void (*disconnect)(struct XenDevice *xendev); | |
28 | int (*free)(struct XenDevice *xendev); | |
29 | void (*backend_changed)(struct XenDevice *xendev, const char *node); | |
30 | void (*frontend_changed)(struct XenDevice *xendev, const char *node); | |
31 | }; | |
32 | ||
33 | struct XenDevice { | |
34 | const char *type; | |
35 | int dom; | |
36 | int dev; | |
37 | char name[64]; | |
38 | int debug; | |
39 | ||
40 | enum xenbus_state be_state; | |
41 | enum xenbus_state fe_state; | |
42 | int online; | |
43 | char be[XEN_BUFSIZE]; | |
44 | char *fe; | |
45 | char *protocol; | |
46 | int remote_port; | |
47 | int local_port; | |
48 | ||
a2db2a1e | 49 | xenevtchn_handle *evtchndev; |
c1345a88 | 50 | xengnttab_handle *gnttabdev; |
d94f9486 AL |
51 | |
52 | struct XenDevOps *ops; | |
72cf2d4f | 53 | QTAILQ_ENTRY(XenDevice) next; |
d94f9486 AL |
54 | }; |
55 | ||
56 | /* ------------------------------------------------------------- */ | |
57 | ||
58 | /* variables */ | |
81daba58 | 59 | extern xc_interface *xen_xc; |
e0cb42ae | 60 | extern xenforeignmemory_handle *xen_fmem; |
d94f9486 | 61 | extern struct xs_handle *xenstore; |
2c8b24a3 | 62 | extern const char *xen_protocol; |
d94f9486 AL |
63 | |
64 | /* xenstore helper functions */ | |
65 | int xenstore_write_str(const char *base, const char *node, const char *val); | |
66 | int xenstore_write_int(const char *base, const char *node, int ival); | |
10bb3c62 | 67 | int xenstore_write_int64(const char *base, const char *node, int64_t ival); |
d94f9486 AL |
68 | char *xenstore_read_str(const char *base, const char *node); |
69 | int xenstore_read_int(const char *base, const char *node, int *ival); | |
70 | ||
71 | int xenstore_write_be_str(struct XenDevice *xendev, const char *node, const char *val); | |
72 | int xenstore_write_be_int(struct XenDevice *xendev, const char *node, int ival); | |
10bb3c62 | 73 | int xenstore_write_be_int64(struct XenDevice *xendev, const char *node, int64_t ival); |
d94f9486 AL |
74 | char *xenstore_read_be_str(struct XenDevice *xendev, const char *node); |
75 | int xenstore_read_be_int(struct XenDevice *xendev, const char *node, int *ival); | |
76 | char *xenstore_read_fe_str(struct XenDevice *xendev, const char *node); | |
77 | int xenstore_read_fe_int(struct XenDevice *xendev, const char *node, int *ival); | |
4aba9eb1 SS |
78 | int xenstore_read_uint64(const char *base, const char *node, uint64_t *uval); |
79 | int xenstore_read_fe_uint64(struct XenDevice *xendev, const char *node, uint64_t *uval); | |
d94f9486 AL |
80 | |
81 | const char *xenbus_strstate(enum xenbus_state state); | |
82 | struct XenDevice *xen_be_find_xendev(const char *type, int dom, int dev); | |
83 | void xen_be_check_state(struct XenDevice *xendev); | |
84 | ||
85 | /* xen backend driver bits */ | |
86 | int xen_be_init(void); | |
87 | int xen_be_register(const char *type, struct XenDevOps *ops); | |
88 | int xen_be_set_state(struct XenDevice *xendev, enum xenbus_state state); | |
89 | int xen_be_bind_evtchn(struct XenDevice *xendev); | |
90 | void xen_be_unbind_evtchn(struct XenDevice *xendev); | |
91 | int xen_be_send_notify(struct XenDevice *xendev); | |
92 | void xen_be_printf(struct XenDevice *xendev, int msg_level, const char *fmt, ...) | |
e5924d89 | 93 | GCC_FMT_ATTR(3, 4); |
d94f9486 | 94 | |
e57dd20b AL |
95 | /* actual backend drivers */ |
96 | extern struct XenDevOps xen_console_ops; /* xen_console.c */ | |
e7151f83 AL |
97 | extern struct XenDevOps xen_kbdmouse_ops; /* xen_framebuffer.c */ |
98 | extern struct XenDevOps xen_framebuffer_ops; /* xen_framebuffer.c */ | |
62d23efa | 99 | extern struct XenDevOps xen_blkdev_ops; /* xen_disk.c */ |
e613b064 | 100 | extern struct XenDevOps xen_netdev_ops; /* xen_nic.c */ |
e7151f83 AL |
101 | |
102 | void xen_init_display(int domid); | |
e57dd20b | 103 | |
2c8b24a3 | 104 | /* configuration (aka xenbus setup) */ |
28695489 | 105 | void xen_config_cleanup(void); |
2c8b24a3 AL |
106 | int xen_config_dev_blk(DriveInfo *disk); |
107 | int xen_config_dev_nic(NICInfo *nic); | |
9306acb5 AL |
108 | int xen_config_dev_vfb(int vdev, const char *type); |
109 | int xen_config_dev_vkbd(int vdev); | |
110 | int xen_config_dev_console(int vdev); | |
2c8b24a3 | 111 | |
d94f9486 | 112 | #endif /* QEMU_HW_XEN_BACKEND_H */ |