linux-user: stack_base is now mandatory on all targets
[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 static inline int xc_domain_populate_physmap_exact
67 (XenXC xc_handle, uint32_t domid, unsigned long nr_extents,
68 unsigned int extent_order, unsigned int mem_flags, xen_pfn_t *extent_start)
69 {
70 return xc_domain_memory_populate_physmap
71 (xc_handle, domid, nr_extents, extent_order, mem_flags, extent_start);
72 }
73
74 static inline int xc_domain_add_to_physmap(int xc_handle, uint32_t domid,
75 unsigned int space, unsigned long idx,
76 xen_pfn_t gpfn)
77 {
78 struct xen_add_to_physmap xatp = {
79 .domid = domid,
80 .space = space,
81 .idx = idx,
82 .gpfn = gpfn,
83 };
84
85 return xc_memory_op(xc_handle, XENMEM_add_to_physmap, &xatp);
86 }
87
88 static inline struct xs_handle *xs_open(unsigned long flags)
89 {
90 return xs_daemon_open();
91 }
92
93 static inline void xs_close(struct xs_handle *xsh)
94 {
95 if (xsh != NULL) {
96 xs_daemon_close(xsh);
97 }
98 }
99
100
101 /* Xen 4.1 */
102 #else
103
104 typedef xc_interface *XenXC;
105 typedef xc_evtchn *XenEvtchn;
106 typedef xc_gnttab *XenGnttab;
107
108 # define XC_INTERFACE_FMT "%p"
109 # define XC_HANDLER_INITIAL_VALUE NULL
110
111 static inline XenEvtchn xen_xc_evtchn_open(void *logger,
112 unsigned int open_flags)
113 {
114 return xc_evtchn_open(logger, open_flags);
115 }
116
117 static inline XenGnttab xen_xc_gnttab_open(void *logger,
118 unsigned int open_flags)
119 {
120 return xc_gnttab_open(logger, open_flags);
121 }
122
123 static inline XenXC xen_xc_interface_open(void *logger, void *dombuild_logger,
124 unsigned int open_flags)
125 {
126 return xc_interface_open(logger, dombuild_logger, open_flags);
127 }
128
129 /* FIXME There is now way to have the xen fd */
130 static inline int xc_fd(xc_interface *xen_xc)
131 {
132 return -1;
133 }
134 #endif
135
136 void destroy_hvm_domain(void);
137
138 #endif /* QEMU_HW_XEN_COMMON_H */