1// SPDX-License-Identifier: GPL-2.0
2#include <stdio.h>
3#include <stdlib.h>
4#include <string.h>
5#include "event-parse.h"
6#include "trace-seq.h"
7
8#define __HYPERVISOR_set_trap_table			0
9#define __HYPERVISOR_mmu_update				1
10#define __HYPERVISOR_set_gdt				2
11#define __HYPERVISOR_stack_switch			3
12#define __HYPERVISOR_set_callbacks			4
13#define __HYPERVISOR_fpu_taskswitch			5
14#define __HYPERVISOR_sched_op_compat			6
15#define __HYPERVISOR_dom0_op				7
16#define __HYPERVISOR_set_debugreg			8
17#define __HYPERVISOR_get_debugreg			9
18#define __HYPERVISOR_update_descriptor			10
19#define __HYPERVISOR_memory_op				12
20#define __HYPERVISOR_multicall				13
21#define __HYPERVISOR_update_va_mapping			14
22#define __HYPERVISOR_set_timer_op			15
23#define __HYPERVISOR_event_channel_op_compat		16
24#define __HYPERVISOR_xen_version			17
25#define __HYPERVISOR_console_io				18
26#define __HYPERVISOR_physdev_op_compat			19
27#define __HYPERVISOR_grant_table_op			20
28#define __HYPERVISOR_vm_assist				21
29#define __HYPERVISOR_update_va_mapping_otherdomain	22
30#define __HYPERVISOR_iret				23 /* x86 only */
31#define __HYPERVISOR_vcpu_op				24
32#define __HYPERVISOR_set_segment_base			25 /* x86/64 only */
33#define __HYPERVISOR_mmuext_op				26
34#define __HYPERVISOR_acm_op				27
35#define __HYPERVISOR_nmi_op				28
36#define __HYPERVISOR_sched_op				29
37#define __HYPERVISOR_callback_op			30
38#define __HYPERVISOR_xenoprof_op			31
39#define __HYPERVISOR_event_channel_op			32
40#define __HYPERVISOR_physdev_op				33
41#define __HYPERVISOR_hvm_op				34
42#define __HYPERVISOR_tmem_op				38
43
44/* Architecture-specific hypercall definitions. */
45#define __HYPERVISOR_arch_0				48
46#define __HYPERVISOR_arch_1				49
47#define __HYPERVISOR_arch_2				50
48#define __HYPERVISOR_arch_3				51
49#define __HYPERVISOR_arch_4				52
50#define __HYPERVISOR_arch_5				53
51#define __HYPERVISOR_arch_6				54
52#define __HYPERVISOR_arch_7				55
53
54#define N(x)	[__HYPERVISOR_##x] = "("#x")"
55static const char *xen_hypercall_names[] = {
56	N(set_trap_table),
57	N(mmu_update),
58	N(set_gdt),
59	N(stack_switch),
60	N(set_callbacks),
61	N(fpu_taskswitch),
62	N(sched_op_compat),
63	N(dom0_op),
64	N(set_debugreg),
65	N(get_debugreg),
66	N(update_descriptor),
67	N(memory_op),
68	N(multicall),
69	N(update_va_mapping),
70	N(set_timer_op),
71	N(event_channel_op_compat),
72	N(xen_version),
73	N(console_io),
74	N(physdev_op_compat),
75	N(grant_table_op),
76	N(vm_assist),
77	N(update_va_mapping_otherdomain),
78	N(iret),
79	N(vcpu_op),
80	N(set_segment_base),
81	N(mmuext_op),
82	N(acm_op),
83	N(nmi_op),
84	N(sched_op),
85	N(callback_op),
86	N(xenoprof_op),
87	N(event_channel_op),
88	N(physdev_op),
89	N(hvm_op),
90
91/* Architecture-specific hypercall definitions. */
92	N(arch_0),
93	N(arch_1),
94	N(arch_2),
95	N(arch_3),
96	N(arch_4),
97	N(arch_5),
98	N(arch_6),
99	N(arch_7),
100};
101#undef N
102
103#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
104
105static const char *xen_hypercall_name(unsigned op)
106{
107	if (op < ARRAY_SIZE(xen_hypercall_names) &&
108	    xen_hypercall_names[op] != NULL)
109		return xen_hypercall_names[op];
110
111	return "";
112}
113
114unsigned long long process_xen_hypercall_name(struct trace_seq *s,
115					      unsigned long long *args)
116{
117	unsigned int op = args[0];
118
119	trace_seq_printf(s, "%s", xen_hypercall_name(op));
120	return 0;
121}
122
123int TEP_PLUGIN_LOADER(struct tep_handle *tep)
124{
125	tep_register_print_function(tep,
126				    process_xen_hypercall_name,
127				    TEP_FUNC_ARG_STRING,
128				    "xen_hypercall_name",
129				    TEP_FUNC_ARG_INT,
130				    TEP_FUNC_ARG_VOID);
131	return 0;
132}
133
134void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
135{
136	tep_unregister_print_function(tep, process_xen_hypercall_name,
137				      "xen_hypercall_name");
138}
139