1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <string.h>
4 #include "event-parse.h"
5
6 #define __HYPERVISOR_set_trap_table 0
7 #define __HYPERVISOR_mmu_update 1
8 #define __HYPERVISOR_set_gdt 2
9 #define __HYPERVISOR_stack_switch 3
10 #define __HYPERVISOR_set_callbacks 4
11 #define __HYPERVISOR_fpu_taskswitch 5
12 #define __HYPERVISOR_sched_op_compat 6
13 #define __HYPERVISOR_dom0_op 7
14 #define __HYPERVISOR_set_debugreg 8
15 #define __HYPERVISOR_get_debugreg 9
16 #define __HYPERVISOR_update_descriptor 10
17 #define __HYPERVISOR_memory_op 12
18 #define __HYPERVISOR_multicall 13
19 #define __HYPERVISOR_update_va_mapping 14
20 #define __HYPERVISOR_set_timer_op 15
21 #define __HYPERVISOR_event_channel_op_compat 16
22 #define __HYPERVISOR_xen_version 17
23 #define __HYPERVISOR_console_io 18
24 #define __HYPERVISOR_physdev_op_compat 19
25 #define __HYPERVISOR_grant_table_op 20
26 #define __HYPERVISOR_vm_assist 21
27 #define __HYPERVISOR_update_va_mapping_otherdomain 22
28 #define __HYPERVISOR_iret 23 /* x86 only */
29 #define __HYPERVISOR_vcpu_op 24
30 #define __HYPERVISOR_set_segment_base 25 /* x86/64 only */
31 #define __HYPERVISOR_mmuext_op 26
32 #define __HYPERVISOR_acm_op 27
33 #define __HYPERVISOR_nmi_op 28
34 #define __HYPERVISOR_sched_op 29
35 #define __HYPERVISOR_callback_op 30
36 #define __HYPERVISOR_xenoprof_op 31
37 #define __HYPERVISOR_event_channel_op 32
38 #define __HYPERVISOR_physdev_op 33
39 #define __HYPERVISOR_hvm_op 34
40 #define __HYPERVISOR_tmem_op 38
41
42 /* Architecture-specific hypercall definitions. */
43 #define __HYPERVISOR_arch_0 48
44 #define __HYPERVISOR_arch_1 49
45 #define __HYPERVISOR_arch_2 50
46 #define __HYPERVISOR_arch_3 51
47 #define __HYPERVISOR_arch_4 52
48 #define __HYPERVISOR_arch_5 53
49 #define __HYPERVISOR_arch_6 54
50 #define __HYPERVISOR_arch_7 55
51
52 #define N(x) [__HYPERVISOR_##x] = "("#x")"
53 static const char *xen_hypercall_names[] = {
54 N(set_trap_table),
55 N(mmu_update),
56 N(set_gdt),
57 N(stack_switch),
58 N(set_callbacks),
59 N(fpu_taskswitch),
60 N(sched_op_compat),
61 N(dom0_op),
62 N(set_debugreg),
63 N(get_debugreg),
64 N(update_descriptor),
65 N(memory_op),
66 N(multicall),
67 N(update_va_mapping),
68 N(set_timer_op),
69 N(event_channel_op_compat),
70 N(xen_version),
71 N(console_io),
72 N(physdev_op_compat),
73 N(grant_table_op),
74 N(vm_assist),
75 N(update_va_mapping_otherdomain),
76 N(iret),
77 N(vcpu_op),
78 N(set_segment_base),
79 N(mmuext_op),
80 N(acm_op),
81 N(nmi_op),
82 N(sched_op),
83 N(callback_op),
84 N(xenoprof_op),
85 N(event_channel_op),
86 N(physdev_op),
87 N(hvm_op),
88
89 /* Architecture-specific hypercall definitions. */
90 N(arch_0),
91 N(arch_1),
92 N(arch_2),
93 N(arch_3),
94 N(arch_4),
95 N(arch_5),
96 N(arch_6),
97 N(arch_7),
98 };
99 #undef N
100
101 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
102
xen_hypercall_name(unsigned op)103 static const char *xen_hypercall_name(unsigned op)
104 {
105 if (op < ARRAY_SIZE(xen_hypercall_names) &&
106 xen_hypercall_names[op] != NULL)
107 return xen_hypercall_names[op];
108
109 return "";
110 }
111
process_xen_hypercall_name(struct trace_seq * s,unsigned long long * args)112 unsigned long long process_xen_hypercall_name(struct trace_seq *s,
113 unsigned long long *args)
114 {
115 unsigned int op = args[0];
116
117 trace_seq_printf(s, "%s", xen_hypercall_name(op));
118 return 0;
119 }
120
PEVENT_PLUGIN_LOADER(struct pevent * pevent)121 int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
122 {
123 pevent_register_print_function(pevent,
124 process_xen_hypercall_name,
125 PEVENT_FUNC_ARG_STRING,
126 "xen_hypercall_name",
127 PEVENT_FUNC_ARG_INT,
128 PEVENT_FUNC_ARG_VOID);
129 return 0;
130 }
131
PEVENT_PLUGIN_UNLOADER(struct pevent * pevent)132 void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
133 {
134 pevent_unregister_print_function(pevent, process_xen_hypercall_name,
135 "xen_hypercall_name");
136 }
137