1
2
3
4
5
6
7
8
9
10
11
12
13
14#ifndef QEMU_KVM_H
15#define QEMU_KVM_H
16
17#include "qemu/queue.h"
18#include "hw/core/cpu.h"
19#include "exec/memattrs.h"
20#include "qemu/accel.h"
21#include "qom/object.h"
22
23#ifdef NEED_CPU_H
24# ifdef CONFIG_KVM
25# include <linux/kvm.h>
26# define CONFIG_KVM_IS_POSSIBLE
27# endif
28#else
29# define CONFIG_KVM_IS_POSSIBLE
30#endif
31
32#ifdef CONFIG_KVM_IS_POSSIBLE
33
34extern bool kvm_allowed;
35extern bool kvm_kernel_irqchip;
36extern bool kvm_split_irqchip;
37extern bool kvm_async_interrupts_allowed;
38extern bool kvm_halt_in_kernel_allowed;
39extern bool kvm_eventfds_allowed;
40extern bool kvm_irqfds_allowed;
41extern bool kvm_resamplefds_allowed;
42extern bool kvm_msi_via_irqfd_allowed;
43extern bool kvm_gsi_routing_allowed;
44extern bool kvm_gsi_direct_mapping;
45extern bool kvm_readonly_mem_allowed;
46extern bool kvm_direct_msi_allowed;
47extern bool kvm_ioeventfd_any_length_allowed;
48extern bool kvm_msi_use_devid;
49extern bool kvm_has_guest_debug;
50extern int kvm_sstep_flags;
51
52#define kvm_enabled() (kvm_allowed)
53
54
55
56
57
58
59
60
61
62
63#define kvm_irqchip_in_kernel() (kvm_kernel_irqchip)
64
65
66
67
68
69
70
71
72
73#define kvm_irqchip_is_split() (kvm_split_irqchip)
74
75
76
77
78
79
80
81
82
83#define kvm_async_interrupts_enabled() (kvm_async_interrupts_allowed)
84
85
86
87
88
89
90
91#define kvm_halt_in_kernel() (kvm_halt_in_kernel_allowed)
92
93
94
95
96
97
98
99
100#define kvm_eventfds_enabled() (kvm_eventfds_allowed)
101
102
103
104
105
106
107
108
109#define kvm_irqfds_enabled() (kvm_irqfds_allowed)
110
111
112
113
114
115
116
117
118#define kvm_resamplefds_enabled() (kvm_resamplefds_allowed)
119
120
121
122
123
124
125
126
127#define kvm_msi_via_irqfd_enabled() (kvm_msi_via_irqfd_allowed)
128
129
130
131
132
133
134
135#define kvm_gsi_routing_enabled() (kvm_gsi_routing_allowed)
136
137
138
139
140
141
142#define kvm_gsi_direct_mapping() (kvm_gsi_direct_mapping)
143
144
145
146
147
148
149
150#define kvm_readonly_mem_enabled() (kvm_readonly_mem_allowed)
151
152
153
154
155
156
157#define kvm_direct_msi_enabled() (kvm_direct_msi_allowed)
158
159
160
161
162
163#define kvm_ioeventfd_any_length_enabled() (kvm_ioeventfd_any_length_allowed)
164
165
166
167
168
169
170#define kvm_msi_devid_required() (kvm_msi_use_devid)
171
172
173
174
175#define kvm_supports_guest_debug() (kvm_has_guest_debug)
176
177
178
179
180
181#define kvm_get_supported_sstep_flags() (kvm_sstep_flags)
182
183#else
184
185#define kvm_enabled() (0)
186#define kvm_irqchip_in_kernel() (false)
187#define kvm_irqchip_is_split() (false)
188#define kvm_async_interrupts_enabled() (false)
189#define kvm_halt_in_kernel() (false)
190#define kvm_eventfds_enabled() (false)
191#define kvm_irqfds_enabled() (false)
192#define kvm_resamplefds_enabled() (false)
193#define kvm_msi_via_irqfd_enabled() (false)
194#define kvm_gsi_routing_allowed() (false)
195#define kvm_gsi_direct_mapping() (false)
196#define kvm_readonly_mem_enabled() (false)
197#define kvm_direct_msi_enabled() (false)
198#define kvm_ioeventfd_any_length_enabled() (false)
199#define kvm_msi_devid_required() (false)
200#define kvm_supports_guest_debug() (false)
201#define kvm_get_supported_sstep_flags() (0)
202
203#endif
204
205struct kvm_run;
206struct kvm_lapic_state;
207struct kvm_irq_routing_entry;
208
209typedef struct KVMCapabilityInfo {
210 const char *name;
211 int value;
212} KVMCapabilityInfo;
213
214#define KVM_CAP_INFO(CAP) { "KVM_CAP_" stringify(CAP), KVM_CAP_##CAP }
215#define KVM_CAP_LAST_INFO { NULL, 0 }
216
217struct KVMState;
218
219#define TYPE_KVM_ACCEL ACCEL_CLASS_NAME("kvm")
220typedef struct KVMState KVMState;
221DECLARE_INSTANCE_CHECKER(KVMState, KVM_STATE,
222 TYPE_KVM_ACCEL)
223
224extern KVMState *kvm_state;
225typedef struct Notifier Notifier;
226
227typedef struct KVMRouteChange {
228 KVMState *s;
229 int changes;
230} KVMRouteChange;
231
232
233
234bool kvm_has_free_slot(MachineState *ms);
235bool kvm_has_sync_mmu(void);
236int kvm_has_vcpu_events(void);
237int kvm_has_robust_singlestep(void);
238int kvm_has_debugregs(void);
239int kvm_max_nested_state_length(void);
240int kvm_has_pit_state2(void);
241int kvm_has_many_ioeventfds(void);
242int kvm_has_gsi_routing(void);
243int kvm_has_intx_set_mask(void);
244
245
246
247
248
249
250
251
252
253
254bool kvm_arm_supports_user_irq(void);
255
256
257int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr);
258int kvm_on_sigbus(int code, void *addr);
259
260#ifdef NEED_CPU_H
261#include "cpu.h"
262
263void kvm_flush_coalesced_mmio_buffer(void);
264
265int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
266 target_ulong len, int type);
267int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
268 target_ulong len, int type);
269void kvm_remove_all_breakpoints(CPUState *cpu);
270int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap);
271
272
273
274int kvm_ioctl(KVMState *s, int type, ...);
275
276int kvm_vm_ioctl(KVMState *s, int type, ...);
277
278int kvm_vcpu_ioctl(CPUState *cpu, int type, ...);
279
280
281
282
283
284
285
286
287int kvm_device_ioctl(int fd, int type, ...);
288
289
290
291
292
293
294
295
296
297
298
299int kvm_vm_check_attr(KVMState *s, uint32_t group, uint64_t attr);
300
301
302
303
304
305
306
307
308
309
310
311int kvm_device_check_attr(int fd, uint32_t group, uint64_t attr);
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327int kvm_device_access(int fd, int group, uint64_t attr,
328 void *val, bool write, Error **errp);
329
330
331
332
333
334
335
336
337
338
339
340int kvm_create_device(KVMState *s, uint64_t type, bool test);
341
342
343
344
345
346
347
348
349
350bool kvm_device_supported(int vmfd, uint64_t type);
351
352
353
354extern const KVMCapabilityInfo kvm_arch_required_capabilities[];
355
356void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run);
357MemTxAttrs kvm_arch_post_run(CPUState *cpu, struct kvm_run *run);
358
359int kvm_arch_handle_exit(CPUState *cpu, struct kvm_run *run);
360
361int kvm_arch_process_async_events(CPUState *cpu);
362
363int kvm_arch_get_registers(CPUState *cpu);
364
365
366#define KVM_PUT_RUNTIME_STATE 1
367
368#define KVM_PUT_RESET_STATE 2
369
370#define KVM_PUT_FULL_STATE 3
371
372int kvm_arch_put_registers(CPUState *cpu, int level);
373
374int kvm_arch_init(MachineState *ms, KVMState *s);
375
376int kvm_arch_init_vcpu(CPUState *cpu);
377int kvm_arch_destroy_vcpu(CPUState *cpu);
378
379bool kvm_vcpu_id_is_valid(int vcpu_id);
380
381
382unsigned long kvm_arch_vcpu_id(CPUState *cpu);
383
384#ifdef KVM_HAVE_MCE_INJECTION
385void kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr);
386#endif
387
388void kvm_arch_init_irq_routing(KVMState *s);
389
390int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route,
391 uint64_t address, uint32_t data, PCIDevice *dev);
392
393
394int kvm_arch_add_msi_route_post(struct kvm_irq_routing_entry *route,
395 int vector, PCIDevice *dev);
396
397int kvm_arch_release_virq_post(int virq);
398
399int kvm_arch_msi_data_to_gsi(uint32_t data);
400
401int kvm_set_irq(KVMState *s, int irq, int level);
402int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg);
403
404void kvm_irqchip_add_irq_route(KVMState *s, int gsi, int irqchip, int pin);
405
406void kvm_irqchip_add_change_notifier(Notifier *n);
407void kvm_irqchip_remove_change_notifier(Notifier *n);
408void kvm_irqchip_change_notify(void);
409
410void kvm_get_apic_state(DeviceState *d, struct kvm_lapic_state *kapic);
411
412struct kvm_guest_debug;
413struct kvm_debug_exit_arch;
414
415struct kvm_sw_breakpoint {
416 target_ulong pc;
417 target_ulong saved_insn;
418 int use_count;
419 QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
420};
421
422struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *cpu,
423 target_ulong pc);
424
425int kvm_sw_breakpoints_active(CPUState *cpu);
426
427int kvm_arch_insert_sw_breakpoint(CPUState *cpu,
428 struct kvm_sw_breakpoint *bp);
429int kvm_arch_remove_sw_breakpoint(CPUState *cpu,
430 struct kvm_sw_breakpoint *bp);
431int kvm_arch_insert_hw_breakpoint(target_ulong addr,
432 target_ulong len, int type);
433int kvm_arch_remove_hw_breakpoint(target_ulong addr,
434 target_ulong len, int type);
435void kvm_arch_remove_all_hw_breakpoints(void);
436
437void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg);
438
439bool kvm_arch_stop_on_emulation_error(CPUState *cpu);
440
441int kvm_check_extension(KVMState *s, unsigned int extension);
442
443int kvm_vm_check_extension(KVMState *s, unsigned int extension);
444
445#define kvm_vm_enable_cap(s, capability, cap_flags, ...) \
446 ({ \
447 struct kvm_enable_cap cap = { \
448 .cap = capability, \
449 .flags = cap_flags, \
450 }; \
451 uint64_t args_tmp[] = { __VA_ARGS__ }; \
452 size_t n = MIN(ARRAY_SIZE(args_tmp), ARRAY_SIZE(cap.args)); \
453 memcpy(cap.args, args_tmp, n * sizeof(cap.args[0])); \
454 kvm_vm_ioctl(s, KVM_ENABLE_CAP, &cap); \
455 })
456
457#define kvm_vcpu_enable_cap(cpu, capability, cap_flags, ...) \
458 ({ \
459 struct kvm_enable_cap cap = { \
460 .cap = capability, \
461 .flags = cap_flags, \
462 }; \
463 uint64_t args_tmp[] = { __VA_ARGS__ }; \
464 size_t n = MIN(ARRAY_SIZE(args_tmp), ARRAY_SIZE(cap.args)); \
465 memcpy(cap.args, args_tmp, n * sizeof(cap.args[0])); \
466 kvm_vcpu_ioctl(cpu, KVM_ENABLE_CAP, &cap); \
467 })
468
469uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function,
470 uint32_t index, int reg);
471uint64_t kvm_arch_get_supported_msr_feature(KVMState *s, uint32_t index);
472
473
474void kvm_set_sigmask_len(KVMState *s, unsigned int sigmask_len);
475
476#if !defined(CONFIG_USER_ONLY)
477int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr,
478 hwaddr *phys_addr);
479#endif
480
481#endif
482
483void kvm_cpu_synchronize_state(CPUState *cpu);
484
485void kvm_init_cpu_signals(CPUState *cpu);
486
487
488
489
490
491
492
493
494
495
496
497
498int kvm_irqchip_add_msi_route(KVMRouteChange *c, int vector, PCIDevice *dev);
499int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg,
500 PCIDevice *dev);
501void kvm_irqchip_commit_routes(KVMState *s);
502
503static inline KVMRouteChange kvm_irqchip_begin_route_changes(KVMState *s)
504{
505 return (KVMRouteChange) { .s = s, .changes = 0 };
506}
507
508static inline void kvm_irqchip_commit_route_changes(KVMRouteChange *c)
509{
510 if (c->changes) {
511 kvm_irqchip_commit_routes(c->s);
512 c->changes = 0;
513 }
514}
515
516void kvm_irqchip_release_virq(KVMState *s, int virq);
517
518int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter);
519int kvm_irqchip_add_hv_sint_route(KVMState *s, uint32_t vcpu, uint32_t sint);
520
521int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
522 EventNotifier *rn, int virq);
523int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
524 int virq);
525int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n,
526 EventNotifier *rn, qemu_irq irq);
527int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n,
528 qemu_irq irq);
529void kvm_irqchip_set_qemuirq_gsi(KVMState *s, qemu_irq irq, int gsi);
530void kvm_pc_setup_irq_routing(bool pci_enabled);
531void kvm_init_irq_routing(KVMState *s);
532
533bool kvm_kernel_irqchip_allowed(void);
534bool kvm_kernel_irqchip_required(void);
535bool kvm_kernel_irqchip_split(void);
536
537
538
539
540
541
542
543
544
545
546
547int kvm_arch_irqchip_create(KVMState *s);
548
549
550
551
552
553
554
555
556
557int kvm_set_one_reg(CPUState *cs, uint64_t id, void *source);
558
559
560
561
562
563
564
565
566
567int kvm_get_one_reg(CPUState *cs, uint64_t id, void *target);
568struct ppc_radix_page_info *kvm_get_radix_page_info(void);
569int kvm_get_max_memslots(void);
570
571
572void kvm_resample_fd_notify(int gsi);
573
574
575
576
577
578
579
580bool kvm_cpu_check_are_resettable(void);
581
582bool kvm_arch_cpu_check_are_resettable(void);
583
584bool kvm_dirty_ring_enabled(void);
585
586uint32_t kvm_dirty_ring_size(void);
587#endif
588