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7#ifndef QEMU_PLUGIN_H
8#define QEMU_PLUGIN_H
9
10#include "qemu/config-file.h"
11#include "qemu/qemu-plugin.h"
12#include "qemu/error-report.h"
13#include "qemu/queue.h"
14#include "qemu/option.h"
15
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18
19
20struct qemu_plugin_desc;
21typedef QTAILQ_HEAD(, qemu_plugin_desc) QemuPluginList;
22
23#ifdef CONFIG_PLUGIN
24extern QemuOptsList qemu_plugin_opts;
25
26static inline void qemu_plugin_add_opts(void)
27{
28 qemu_add_opts(&qemu_plugin_opts);
29}
30
31void qemu_plugin_opt_parse(const char *optarg, QemuPluginList *head);
32int qemu_plugin_load_list(QemuPluginList *head);
33#else
34static inline void qemu_plugin_add_opts(void)
35{ }
36
37static inline void qemu_plugin_opt_parse(const char *optarg,
38 QemuPluginList *head)
39{
40 error_report("plugin interface not enabled in this build");
41 exit(1);
42}
43
44static inline int qemu_plugin_load_list(QemuPluginList *head)
45{
46 return 0;
47}
48#endif
49
50
51
52
53enum qemu_plugin_event {
54 QEMU_PLUGIN_EV_VCPU_INIT,
55 QEMU_PLUGIN_EV_VCPU_EXIT,
56 QEMU_PLUGIN_EV_VCPU_TB_TRANS,
57 QEMU_PLUGIN_EV_VCPU_IDLE,
58 QEMU_PLUGIN_EV_VCPU_RESUME,
59 QEMU_PLUGIN_EV_VCPU_SYSCALL,
60 QEMU_PLUGIN_EV_VCPU_SYSCALL_RET,
61 QEMU_PLUGIN_EV_FLUSH,
62 QEMU_PLUGIN_EV_ATEXIT,
63 QEMU_PLUGIN_EV_MAX,
64};
65
66union qemu_plugin_cb_sig {
67 qemu_plugin_simple_cb_t simple;
68 qemu_plugin_udata_cb_t udata;
69 qemu_plugin_vcpu_simple_cb_t vcpu_simple;
70 qemu_plugin_vcpu_udata_cb_t vcpu_udata;
71 qemu_plugin_vcpu_tb_trans_cb_t vcpu_tb_trans;
72 qemu_plugin_vcpu_mem_cb_t vcpu_mem;
73 qemu_plugin_vcpu_syscall_cb_t vcpu_syscall;
74 qemu_plugin_vcpu_syscall_ret_cb_t vcpu_syscall_ret;
75 void *generic;
76};
77
78enum plugin_dyn_cb_type {
79 PLUGIN_CB_INSN,
80 PLUGIN_CB_MEM,
81 PLUGIN_N_CB_TYPES,
82};
83
84enum plugin_dyn_cb_subtype {
85 PLUGIN_CB_REGULAR,
86 PLUGIN_CB_INLINE,
87 PLUGIN_N_CB_SUBTYPES,
88};
89
90
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93
94
95struct qemu_plugin_dyn_cb {
96 union qemu_plugin_cb_sig f;
97 void *userp;
98 unsigned tcg_flags;
99 enum plugin_dyn_cb_subtype type;
100
101 enum qemu_plugin_mem_rw rw;
102
103 union {
104 struct {
105 enum qemu_plugin_op op;
106 uint64_t imm;
107 } inline_insn;
108 };
109};
110
111struct qemu_plugin_insn {
112 GByteArray *data;
113 uint64_t vaddr;
114 void *haddr;
115 GArray *cbs[PLUGIN_N_CB_TYPES][PLUGIN_N_CB_SUBTYPES];
116 bool calls_helpers;
117 bool mem_helper;
118};
119
120
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122
123
124
125
126static inline void qemu_plugin_insn_cleanup_fn(gpointer data)
127{
128 struct qemu_plugin_insn *insn = (struct qemu_plugin_insn *) data;
129 g_byte_array_free(insn->data, true);
130}
131
132static inline struct qemu_plugin_insn *qemu_plugin_insn_alloc(void)
133{
134 int i, j;
135 struct qemu_plugin_insn *insn = g_new0(struct qemu_plugin_insn, 1);
136 insn->data = g_byte_array_sized_new(4);
137
138 for (i = 0; i < PLUGIN_N_CB_TYPES; i++) {
139 for (j = 0; j < PLUGIN_N_CB_SUBTYPES; j++) {
140 insn->cbs[i][j] = g_array_new(false, false,
141 sizeof(struct qemu_plugin_dyn_cb));
142 }
143 }
144 return insn;
145}
146
147struct qemu_plugin_tb {
148 GPtrArray *insns;
149 size_t n;
150 uint64_t vaddr;
151 uint64_t vaddr2;
152 void *haddr1;
153 void *haddr2;
154 GArray *cbs[PLUGIN_N_CB_SUBTYPES];
155};
156
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158
159
160
161static inline
162struct qemu_plugin_insn *qemu_plugin_tb_insn_get(struct qemu_plugin_tb *tb)
163{
164 struct qemu_plugin_insn *insn;
165 int i, j;
166
167 if (unlikely(tb->n == tb->insns->len)) {
168 struct qemu_plugin_insn *new_insn = qemu_plugin_insn_alloc();
169 g_ptr_array_add(tb->insns, new_insn);
170 }
171 insn = g_ptr_array_index(tb->insns, tb->n++);
172 g_byte_array_set_size(insn->data, 0);
173 insn->calls_helpers = false;
174 insn->mem_helper = false;
175
176 for (i = 0; i < PLUGIN_N_CB_TYPES; i++) {
177 for (j = 0; j < PLUGIN_N_CB_SUBTYPES; j++) {
178 g_array_set_size(insn->cbs[i][j], 0);
179 }
180 }
181
182 return insn;
183}
184
185#ifdef CONFIG_PLUGIN
186
187void qemu_plugin_vcpu_init_hook(CPUState *cpu);
188void qemu_plugin_vcpu_exit_hook(CPUState *cpu);
189void qemu_plugin_tb_trans_cb(CPUState *cpu, struct qemu_plugin_tb *tb);
190void qemu_plugin_vcpu_idle_cb(CPUState *cpu);
191void qemu_plugin_vcpu_resume_cb(CPUState *cpu);
192void
193qemu_plugin_vcpu_syscall(CPUState *cpu, int64_t num, uint64_t a1,
194 uint64_t a2, uint64_t a3, uint64_t a4, uint64_t a5,
195 uint64_t a6, uint64_t a7, uint64_t a8);
196void qemu_plugin_vcpu_syscall_ret(CPUState *cpu, int64_t num, int64_t ret);
197
198void qemu_plugin_vcpu_mem_cb(CPUState *cpu, uint64_t vaddr, uint32_t meminfo);
199
200void qemu_plugin_flush_cb(void);
201
202void qemu_plugin_atexit_cb(void);
203
204void qemu_plugin_add_dyn_cb_arr(GArray *arr);
205
206void qemu_plugin_disable_mem_helpers(CPUState *cpu);
207
208#else
209
210static inline void qemu_plugin_vcpu_init_hook(CPUState *cpu)
211{ }
212
213static inline void qemu_plugin_vcpu_exit_hook(CPUState *cpu)
214{ }
215
216static inline void qemu_plugin_tb_trans_cb(CPUState *cpu,
217 struct qemu_plugin_tb *tb)
218{ }
219
220static inline void qemu_plugin_vcpu_idle_cb(CPUState *cpu)
221{ }
222
223static inline void qemu_plugin_vcpu_resume_cb(CPUState *cpu)
224{ }
225
226static inline void
227qemu_plugin_vcpu_syscall(CPUState *cpu, int64_t num, uint64_t a1, uint64_t a2,
228 uint64_t a3, uint64_t a4, uint64_t a5, uint64_t a6,
229 uint64_t a7, uint64_t a8)
230{ }
231
232static inline
233void qemu_plugin_vcpu_syscall_ret(CPUState *cpu, int64_t num, int64_t ret)
234{ }
235
236static inline void qemu_plugin_vcpu_mem_cb(CPUState *cpu, uint64_t vaddr,
237 uint32_t meminfo)
238{ }
239
240static inline void qemu_plugin_flush_cb(void)
241{ }
242
243static inline void qemu_plugin_atexit_cb(void)
244{ }
245
246static inline
247void qemu_plugin_add_dyn_cb_arr(GArray *arr)
248{ }
249
250static inline void qemu_plugin_disable_mem_helpers(CPUState *cpu)
251{ }
252
253#endif
254
255#endif
256