xen: Support new libxc calls from xen unstable.
[qemu.git] / hw / xen_common.h
1 #ifndef QEMU_HW_XEN_COMMON_H
2 #define QEMU_HW_XEN_COMMON_H 1
3
4 #include "config-host.h"
5
6 #include <stddef.h>
7 #include <inttypes.h>
8
9 #include <xenctrl.h>
10 #include <xs.h>
11 #include <xen/io/xenbus.h>
12
13 #include "hw.h"
14 #include "xen.h"
15 #include "qemu-queue.h"
16
17 /*
18 * We don't support Xen prior to 3.3.0.
19 */
20
21 /* Xen before 4.0 */
22 #if CONFIG_XEN_CTRL_INTERFACE_VERSION < 400
23 static inline void *xc_map_foreign_bulk(int xc_handle, uint32_t dom, int prot,
24 xen_pfn_t *arr, int *err,
25 unsigned int num)
26 {
27 return xc_map_foreign_batch(xc_handle, dom, prot, arr, num);
28 }
29 #endif
30
31
32 /* Xen before 4.1 */
33 #if CONFIG_XEN_CTRL_INTERFACE_VERSION < 410
34
35 typedef int XenXC;
36 typedef int XenEvtchn;
37 typedef int XenGnttab;
38
39 # define XC_INTERFACE_FMT "%i"
40 # define XC_HANDLER_INITIAL_VALUE -1
41
42 static inline XenEvtchn xen_xc_evtchn_open(void *logger,
43 unsigned int open_flags)
44 {
45 return xc_evtchn_open();
46 }
47
48 static inline XenGnttab xen_xc_gnttab_open(void *logger,
49 unsigned int open_flags)
50 {
51 return xc_gnttab_open();
52 }
53
54 static inline XenXC xen_xc_interface_open(void *logger, void *dombuild_logger,
55 unsigned int open_flags)
56 {
57 return xc_interface_open();
58 }
59
60 static inline int xc_fd(int xen_xc)
61 {
62 return xen_xc;
63 }
64
65
66 /* Xen 4.1 */
67 #else
68
69 typedef xc_interface *XenXC;
70 typedef xc_evtchn *XenEvtchn;
71 typedef xc_gnttab *XenGnttab;
72
73 # define XC_INTERFACE_FMT "%p"
74 # define XC_HANDLER_INITIAL_VALUE NULL
75
76 static inline XenEvtchn xen_xc_evtchn_open(void *logger,
77 unsigned int open_flags)
78 {
79 return xc_evtchn_open(logger, open_flags);
80 }
81
82 static inline XenGnttab xen_xc_gnttab_open(void *logger,
83 unsigned int open_flags)
84 {
85 return xc_gnttab_open(logger, open_flags);
86 }
87
88 static inline XenXC xen_xc_interface_open(void *logger, void *dombuild_logger,
89 unsigned int open_flags)
90 {
91 return xc_interface_open(logger, dombuild_logger, open_flags);
92 }
93
94 /* FIXME There is now way to have the xen fd */
95 static inline int xc_fd(xc_interface *xen_xc)
96 {
97 return -1;
98 }
99 #endif
100
101 #endif /* QEMU_HW_XEN_COMMON_H */