MAINTAINERS: clk framework git tree moved to kernel.org
[sfrench/cifs-2.6.git] / include / xen / hvm.h
1 /* Simple wrappers around HVM functions */
2 #ifndef XEN_HVM_H__
3 #define XEN_HVM_H__
4
5 #include <xen/interface/hvm/params.h>
6 #include <asm/xen/hypercall.h>
7
8 static const char *param_name(int op)
9 {
10 #define PARAM(x) [HVM_PARAM_##x] = #x
11         static const char *const names[] = {
12                 PARAM(CALLBACK_IRQ),
13                 PARAM(STORE_PFN),
14                 PARAM(STORE_EVTCHN),
15                 PARAM(PAE_ENABLED),
16                 PARAM(IOREQ_PFN),
17                 PARAM(BUFIOREQ_PFN),
18                 PARAM(TIMER_MODE),
19                 PARAM(HPET_ENABLED),
20                 PARAM(IDENT_PT),
21                 PARAM(DM_DOMAIN),
22                 PARAM(ACPI_S_STATE),
23                 PARAM(VM86_TSS),
24                 PARAM(VPT_ALIGN),
25                 PARAM(CONSOLE_PFN),
26                 PARAM(CONSOLE_EVTCHN),
27         };
28 #undef PARAM
29
30         if (op >= ARRAY_SIZE(names))
31                 return "unknown";
32
33         if (!names[op])
34                 return "reserved";
35
36         return names[op];
37 }
38 static inline int hvm_get_parameter(int idx, uint64_t *value)
39 {
40         struct xen_hvm_param xhv;
41         int r;
42
43         xhv.domid = DOMID_SELF;
44         xhv.index = idx;
45         r = HYPERVISOR_hvm_op(HVMOP_get_param, &xhv);
46         if (r < 0) {
47                 pr_err("Cannot get hvm parameter %s (%d): %d!\n",
48                        param_name(idx), idx, r);
49                 return r;
50         }
51         *value = xhv.value;
52         return r;
53 }
54
55 #define HVM_CALLBACK_VIA_TYPE_VECTOR 0x2
56 #define HVM_CALLBACK_VIA_TYPE_SHIFT 56
57 #define HVM_CALLBACK_VECTOR(x) (((uint64_t)HVM_CALLBACK_VIA_TYPE_VECTOR)<<\
58                 HVM_CALLBACK_VIA_TYPE_SHIFT | (x))
59
60 #endif /* XEN_HVM_H__ */