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14#ifndef QEMU_KVM_H
15#define QEMU_KVM_H
16
17#include <errno.h>
18#include "config-host.h"
19#include "qemu/queue.h"
20#include "qom/cpu.h"
21#include "exec/memattrs.h"
22#include "hw/irq.h"
23
24#ifdef CONFIG_KVM
25#include <linux/kvm.h>
26#include <linux/kvm_para.h>
27#else
28
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30
31
32#define KVM_CPUID_SIGNATURE 0
33#define KVM_CPUID_FEATURES 0
34#define KVM_FEATURE_CLOCKSOURCE 0
35#define KVM_FEATURE_NOP_IO_DELAY 0
36#define KVM_FEATURE_MMU_OP 0
37#define KVM_FEATURE_CLOCKSOURCE2 0
38#define KVM_FEATURE_ASYNC_PF 0
39#define KVM_FEATURE_STEAL_TIME 0
40#define KVM_FEATURE_PV_EOI 0
41#define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT 0
42#endif
43
44extern bool kvm_allowed;
45extern bool kvm_kernel_irqchip;
46extern bool kvm_async_interrupts_allowed;
47extern bool kvm_halt_in_kernel_allowed;
48extern bool kvm_eventfds_allowed;
49extern bool kvm_irqfds_allowed;
50extern bool kvm_resamplefds_allowed;
51extern bool kvm_msi_via_irqfd_allowed;
52extern bool kvm_gsi_routing_allowed;
53extern bool kvm_gsi_direct_mapping;
54extern bool kvm_readonly_mem_allowed;
55
56#if defined CONFIG_KVM || !defined NEED_CPU_H
57#define kvm_enabled() (kvm_allowed)
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68
69#define kvm_irqchip_in_kernel() (kvm_kernel_irqchip)
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78
79#define kvm_async_interrupts_enabled() (kvm_async_interrupts_allowed)
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87#define kvm_halt_in_kernel() (kvm_halt_in_kernel_allowed)
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96#define kvm_eventfds_enabled() (kvm_eventfds_allowed)
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105#define kvm_irqfds_enabled() (kvm_irqfds_allowed)
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114#define kvm_resamplefds_enabled() (kvm_resamplefds_allowed)
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123#define kvm_msi_via_irqfd_enabled() (kvm_msi_via_irqfd_allowed)
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131#define kvm_gsi_routing_enabled() (kvm_gsi_routing_allowed)
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138#define kvm_gsi_direct_mapping() (kvm_gsi_direct_mapping)
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146#define kvm_readonly_mem_enabled() (kvm_readonly_mem_allowed)
147
148#else
149#define kvm_enabled() (0)
150#define kvm_irqchip_in_kernel() (false)
151#define kvm_async_interrupts_enabled() (false)
152#define kvm_halt_in_kernel() (false)
153#define kvm_eventfds_enabled() (false)
154#define kvm_irqfds_enabled() (false)
155#define kvm_resamplefds_enabled() (false)
156#define kvm_msi_via_irqfd_enabled() (false)
157#define kvm_gsi_routing_allowed() (false)
158#define kvm_gsi_direct_mapping() (false)
159#define kvm_readonly_mem_enabled() (false)
160#endif
161
162struct kvm_run;
163struct kvm_lapic_state;
164struct kvm_irq_routing_entry;
165
166typedef struct KVMCapabilityInfo {
167 const char *name;
168 int value;
169} KVMCapabilityInfo;
170
171#define KVM_CAP_INFO(CAP) { "KVM_CAP_" stringify(CAP), KVM_CAP_##CAP }
172#define KVM_CAP_LAST_INFO { NULL, 0 }
173
174struct KVMState;
175typedef struct KVMState KVMState;
176extern KVMState *kvm_state;
177
178
179
180bool kvm_has_free_slot(MachineState *ms);
181int kvm_has_sync_mmu(void);
182int kvm_has_vcpu_events(void);
183int kvm_has_robust_singlestep(void);
184int kvm_has_debugregs(void);
185int kvm_has_xsave(void);
186int kvm_has_xcrs(void);
187int kvm_has_pit_state2(void);
188int kvm_has_many_ioeventfds(void);
189int kvm_has_gsi_routing(void);
190int kvm_has_intx_set_mask(void);
191
192int kvm_init_vcpu(CPUState *cpu);
193int kvm_cpu_exec(CPUState *cpu);
194
195#ifdef NEED_CPU_H
196
197void kvm_setup_guest_memory(void *start, size_t size);
198void kvm_flush_coalesced_mmio_buffer(void);
199
200int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
201 target_ulong len, int type);
202int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
203 target_ulong len, int type);
204void kvm_remove_all_breakpoints(CPUState *cpu);
205int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap);
206#ifndef _WIN32
207int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset);
208#endif
209
210int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr);
211int kvm_on_sigbus(int code, void *addr);
212
213
214
215int kvm_ioctl(KVMState *s, int type, ...);
216
217int kvm_vm_ioctl(KVMState *s, int type, ...);
218
219int kvm_vcpu_ioctl(CPUState *cpu, int type, ...);
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228int kvm_device_ioctl(int fd, int type, ...);
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240int kvm_vm_check_attr(KVMState *s, uint32_t group, uint64_t attr);
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252int kvm_create_device(KVMState *s, uint64_t type, bool test);
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257extern const KVMCapabilityInfo kvm_arch_required_capabilities[];
258
259void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run);
260MemTxAttrs kvm_arch_post_run(CPUState *cpu, struct kvm_run *run);
261
262int kvm_arch_handle_exit(CPUState *cpu, struct kvm_run *run);
263
264int kvm_arch_process_async_events(CPUState *cpu);
265
266int kvm_arch_get_registers(CPUState *cpu);
267
268
269#define KVM_PUT_RUNTIME_STATE 1
270
271#define KVM_PUT_RESET_STATE 2
272
273#define KVM_PUT_FULL_STATE 3
274
275int kvm_arch_put_registers(CPUState *cpu, int level);
276
277int kvm_arch_init(MachineState *ms, KVMState *s);
278
279int kvm_arch_init_vcpu(CPUState *cpu);
280
281
282unsigned long kvm_arch_vcpu_id(CPUState *cpu);
283
284int kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr);
285int kvm_arch_on_sigbus(int code, void *addr);
286
287void kvm_arch_init_irq_routing(KVMState *s);
288
289int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route,
290 uint64_t address, uint32_t data);
291
292int kvm_arch_msi_data_to_gsi(uint32_t data);
293
294int kvm_set_irq(KVMState *s, int irq, int level);
295int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg);
296
297void kvm_irqchip_add_irq_route(KVMState *s, int gsi, int irqchip, int pin);
298void kvm_irqchip_commit_routes(KVMState *s);
299
300void kvm_put_apic_state(DeviceState *d, struct kvm_lapic_state *kapic);
301void kvm_get_apic_state(DeviceState *d, struct kvm_lapic_state *kapic);
302
303struct kvm_guest_debug;
304struct kvm_debug_exit_arch;
305
306struct kvm_sw_breakpoint {
307 target_ulong pc;
308 target_ulong saved_insn;
309 int use_count;
310 QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
311};
312
313QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
314
315struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *cpu,
316 target_ulong pc);
317
318int kvm_sw_breakpoints_active(CPUState *cpu);
319
320int kvm_arch_insert_sw_breakpoint(CPUState *cpu,
321 struct kvm_sw_breakpoint *bp);
322int kvm_arch_remove_sw_breakpoint(CPUState *cpu,
323 struct kvm_sw_breakpoint *bp);
324int kvm_arch_insert_hw_breakpoint(target_ulong addr,
325 target_ulong len, int type);
326int kvm_arch_remove_hw_breakpoint(target_ulong addr,
327 target_ulong len, int type);
328void kvm_arch_remove_all_hw_breakpoints(void);
329
330void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg);
331
332bool kvm_arch_stop_on_emulation_error(CPUState *cpu);
333
334int kvm_check_extension(KVMState *s, unsigned int extension);
335
336int kvm_vm_check_extension(KVMState *s, unsigned int extension);
337
338#define kvm_vm_enable_cap(s, capability, cap_flags, ...) \
339 ({ \
340 struct kvm_enable_cap cap = { \
341 .cap = capability, \
342 .flags = cap_flags, \
343 }; \
344 uint64_t args_tmp[] = { __VA_ARGS__ }; \
345 int i; \
346 for (i = 0; i < (int)ARRAY_SIZE(args_tmp) && \
347 i < ARRAY_SIZE(cap.args); i++) { \
348 cap.args[i] = args_tmp[i]; \
349 } \
350 kvm_vm_ioctl(s, KVM_ENABLE_CAP, &cap); \
351 })
352
353#define kvm_vcpu_enable_cap(cpu, capability, cap_flags, ...) \
354 ({ \
355 struct kvm_enable_cap cap = { \
356 .cap = capability, \
357 .flags = cap_flags, \
358 }; \
359 uint64_t args_tmp[] = { __VA_ARGS__ }; \
360 int i; \
361 for (i = 0; i < (int)ARRAY_SIZE(args_tmp) && \
362 i < ARRAY_SIZE(cap.args); i++) { \
363 cap.args[i] = args_tmp[i]; \
364 } \
365 kvm_vcpu_ioctl(cpu, KVM_ENABLE_CAP, &cap); \
366 })
367
368uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function,
369 uint32_t index, int reg);
370
371void kvm_set_sigmask_len(KVMState *s, unsigned int sigmask_len);
372
373#if !defined(CONFIG_USER_ONLY)
374int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr,
375 hwaddr *phys_addr);
376#endif
377
378#endif
379
380void kvm_cpu_synchronize_state(CPUState *cpu);
381void kvm_cpu_synchronize_post_reset(CPUState *cpu);
382void kvm_cpu_synchronize_post_init(CPUState *cpu);
383void kvm_cpu_clean_state(CPUState *cpu);
384
385
386
387static inline void cpu_synchronize_state(CPUState *cpu)
388{
389 if (kvm_enabled()) {
390 kvm_cpu_synchronize_state(cpu);
391 }
392}
393
394static inline void cpu_synchronize_post_reset(CPUState *cpu)
395{
396 if (kvm_enabled()) {
397 kvm_cpu_synchronize_post_reset(cpu);
398 }
399}
400
401static inline void cpu_synchronize_post_init(CPUState *cpu)
402{
403 if (kvm_enabled()) {
404 kvm_cpu_synchronize_post_init(cpu);
405 }
406}
407
408static inline void cpu_clean_state(CPUState *cpu)
409{
410 if (kvm_enabled()) {
411 kvm_cpu_clean_state(cpu);
412 }
413}
414
415int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg);
416int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg);
417void kvm_irqchip_release_virq(KVMState *s, int virq);
418
419int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter);
420
421int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
422 EventNotifier *rn, int virq);
423int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
424 int virq);
425int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n,
426 EventNotifier *rn, qemu_irq irq);
427int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n,
428 qemu_irq irq);
429void kvm_irqchip_set_qemuirq_gsi(KVMState *s, qemu_irq irq, int gsi);
430void kvm_pc_gsi_handler(void *opaque, int n, int level);
431void kvm_pc_setup_irq_routing(bool pci_enabled);
432void kvm_init_irq_routing(KVMState *s);
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444int kvm_arch_irqchip_create(KVMState *s);
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454int kvm_set_one_reg(CPUState *cs, uint64_t id, void *source);
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464int kvm_get_one_reg(CPUState *cs, uint64_t id, void *target);
465#endif
466