summaryrefslogtreecommitdiffstats
path: root/hw/xen_common.h
blob: c37bde3f7e0bceadb68bae5d9a7222ec588bc014 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
#ifndef QEMU_HW_XEN_COMMON_H
#define QEMU_HW_XEN_COMMON_H 1

#include "config-host.h"

#include <stddef.h>
#include <inttypes.h>

#include <xenctrl.h>
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 420
#  include <xs.h>
#else
#  include <xenstore.h>
#endif
#include <xen/io/xenbus.h>

#include "hw/hw.h"
#include "hw/xen.h"
#include "qemu/queue.h"

/*
 * We don't support Xen prior to 3.3.0.
 */

/* Xen before 4.0 */
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 400
static inline void *xc_map_foreign_bulk(int xc_handle, uint32_t dom, int prot,
                                        xen_pfn_t *arr, int *err,
                                        unsigned int num)
{
    return xc_map_foreign_batch(xc_handle, dom, prot, arr, num);
}
#endif


/* Xen before 4.1 */
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 410

typedef int XenXC;
typedef int XenEvtchn;
typedef int XenGnttab;

#  define XC_INTERFACE_FMT "%i"
#  define XC_HANDLER_INITIAL_VALUE    -1

static inline XenEvtchn xen_xc_evtchn_open(void *logger,
                                           unsigned int open_flags)
{
    return xc_evtchn_open();
}

static inline XenGnttab xen_xc_gnttab_open(void *logger,
                                           unsigned int open_flags)
{
    return xc_gnttab_open();
}

static inline XenXC xen_xc_interface_open(void *logger, void *dombuild_logger,
                                          unsigned int open_flags)
{
    return xc_interface_open();
}

static inline int xc_fd(int xen_xc)
{
    return xen_xc;
}


static inline int xc_domain_populate_physmap_exact
    (XenXC xc_handle, uint32_t domid, unsigned long nr_extents,
     unsigned int extent_order, unsigned int mem_flags, xen_pfn_t *extent_start)
{
    return xc_domain_memory_populate_physmap
        (xc_handle, domid, nr_extents, extent_order, mem_flags, extent_start);
}

static inline int xc_domain_add_to_physmap(int xc_handle, uint32_t domid,
                                           unsigned int space, unsigned long idx,
                                           xen_pfn_t gpfn)
{
    struct xen_add_to_physmap xatp = {
        .domid = domid,
        .space = space,
        .idx = idx,
        .gpfn = gpfn,
    };

    return xc_memory_op(xc_handle, XENMEM_add_to_physmap, &xatp);
}

static inline struct xs_handle *xs_open(unsigned long flags)
{
    return xs_daemon_open();
}

static inline void xs_close(struct xs_handle *xsh)
{
    if (xsh != NULL) {
        xs_daemon_close(xsh);
    }
}


/* Xen 4.1 */
#else

typedef xc_interface *XenXC;
typedef xc_evtchn *XenEvtchn;
typedef xc_gnttab *XenGnttab;

#  define XC_INTERFACE_FMT "%p"
#  define XC_HANDLER_INITIAL_VALUE    NULL

static inline XenEvtchn xen_xc_evtchn_open(void *logger,
                                           unsigned int open_flags)
{
    return xc_evtchn_open(logger, open_flags);
}

static inline XenGnttab xen_xc_gnttab_open(void *logger,
                                           unsigned int open_flags)
{
    return xc_gnttab_open(logger, open_flags);
}

static inline XenXC xen_xc_interface_open(void *logger, void *dombuild_logger,
                                          unsigned int open_flags)
{
    return xc_interface_open(logger, dombuild_logger, open_flags);
}

/* FIXME There is now way to have the xen fd */
static inline int xc_fd(xc_interface *xen_xc)
{
    return -1;
}
#endif

/* Xen before 4.2 */
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 420
static inline int xen_xc_hvm_inject_msi(XenXC xen_xc, domid_t dom,
        uint64_t addr, uint32_t data)
{
    return -ENOSYS;
}
#else
static inline int xen_xc_hvm_inject_msi(XenXC xen_xc, domid_t dom,
        uint64_t addr, uint32_t data)
{
    return xc_hvm_inject_msi(xen_xc, dom, addr, data);
}
#endif

void destroy_hvm_domain(bool reboot);

/* shutdown/destroy current domain because of an error */
void xen_shutdown_fatal_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);

#endif /* QEMU_HW_XEN_COMMON_H */
OpenPOWER on IntegriCloud