1 #include "qemu/osdep.h"
2 #include "hw/xen/xen-legacy-backend.h"
3 #include "qemu/option.h"
4 #include "sysemu/blockdev.h"
5 #include "sysemu/sysemu.h"
6
7 /* ------------------------------------------------------------- */
8
xen_config_dev_dirs(const char * ftype,const char * btype,int vdev,char * fe,char * be,int len)9 static int xen_config_dev_dirs(const char *ftype, const char *btype, int vdev,
10 char *fe, char *be, int len)
11 {
12 char *dom;
13
14 dom = qemu_xen_xs_get_domain_path(xenstore, xen_domid);
15 snprintf(fe, len, "%s/device/%s/%d", dom, ftype, vdev);
16 free(dom);
17
18 dom = qemu_xen_xs_get_domain_path(xenstore, 0);
19 snprintf(be, len, "%s/backend/%s/%d/%d", dom, btype, xen_domid, vdev);
20 free(dom);
21
22 xenstore_mkdir(fe, XS_PERM_READ | XS_PERM_WRITE);
23 xenstore_mkdir(be, XS_PERM_READ);
24 return 0;
25 }
26
xen_config_dev_all(char * fe,char * be)27 static int xen_config_dev_all(char *fe, char *be)
28 {
29 /* frontend */
30 if (xen_protocol)
31 xenstore_write_str(fe, "protocol", xen_protocol);
32
33 xenstore_write_int(fe, "state", XenbusStateInitialising);
34 xenstore_write_int(fe, "backend-id", 0);
35 xenstore_write_str(fe, "backend", be);
36
37 /* backend */
38 xenstore_write_str(be, "domain", qemu_name ? qemu_name : "no-name");
39 xenstore_write_int(be, "online", 1);
40 xenstore_write_int(be, "state", XenbusStateInitialising);
41 xenstore_write_int(be, "frontend-id", xen_domid);
42 xenstore_write_str(be, "frontend", fe);
43
44 return 0;
45 }
46
47 /* ------------------------------------------------------------- */
48
xen_config_dev_vfb(int vdev,const char * type)49 int xen_config_dev_vfb(int vdev, const char *type)
50 {
51 char fe[256], be[256];
52
53 xen_config_dev_dirs("vfb", "vfb", vdev, fe, be, sizeof(fe));
54
55 /* backend */
56 xenstore_write_str(be, "type", type);
57
58 /* common stuff */
59 return xen_config_dev_all(fe, be);
60 }
61
xen_config_dev_vkbd(int vdev)62 int xen_config_dev_vkbd(int vdev)
63 {
64 char fe[256], be[256];
65
66 xen_config_dev_dirs("vkbd", "vkbd", vdev, fe, be, sizeof(fe));
67 return xen_config_dev_all(fe, be);
68 }
69