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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;
49
50#define kvm_enabled() (kvm_allowed)
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60
61#define kvm_irqchip_in_kernel() (kvm_kernel_irqchip)
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71#define kvm_irqchip_is_split() (kvm_split_irqchip)
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81#define kvm_async_interrupts_enabled() (kvm_async_interrupts_allowed)
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89#define kvm_halt_in_kernel() (kvm_halt_in_kernel_allowed)
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98#define kvm_eventfds_enabled() (kvm_eventfds_allowed)
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107#define kvm_irqfds_enabled() (kvm_irqfds_allowed)
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116#define kvm_resamplefds_enabled() (kvm_resamplefds_allowed)
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125#define kvm_msi_via_irqfd_enabled() (kvm_msi_via_irqfd_allowed)
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133#define kvm_gsi_routing_enabled() (kvm_gsi_routing_allowed)
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140#define kvm_gsi_direct_mapping() (kvm_gsi_direct_mapping)
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148#define kvm_readonly_mem_enabled() (kvm_readonly_mem_allowed)
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155#define kvm_direct_msi_enabled() (kvm_direct_msi_allowed)
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161#define kvm_ioeventfd_any_length_enabled() (kvm_ioeventfd_any_length_allowed)
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168#define kvm_msi_devid_required() (kvm_msi_use_devid)
169
170#else
171
172#define kvm_enabled() (0)
173#define kvm_irqchip_in_kernel() (false)
174#define kvm_irqchip_is_split() (false)
175#define kvm_async_interrupts_enabled() (false)
176#define kvm_halt_in_kernel() (false)
177#define kvm_eventfds_enabled() (false)
178#define kvm_irqfds_enabled() (false)
179#define kvm_resamplefds_enabled() (false)
180#define kvm_msi_via_irqfd_enabled() (false)
181#define kvm_gsi_routing_allowed() (false)
182#define kvm_gsi_direct_mapping() (false)
183#define kvm_readonly_mem_enabled() (false)
184#define kvm_direct_msi_enabled() (false)
185#define kvm_ioeventfd_any_length_enabled() (false)
186#define kvm_msi_devid_required() (false)
187
188#endif
189
190struct kvm_run;
191struct kvm_lapic_state;
192struct kvm_irq_routing_entry;
193
194typedef struct KVMCapabilityInfo {
195 const char *name;
196 int value;
197} KVMCapabilityInfo;
198
199#define KVM_CAP_INFO(CAP) { "KVM_CAP_" stringify(CAP), KVM_CAP_##CAP }
200#define KVM_CAP_LAST_INFO { NULL, 0 }
201
202struct KVMState;
203
204#define TYPE_KVM_ACCEL ACCEL_CLASS_NAME("kvm")
205typedef struct KVMState KVMState;
206DECLARE_INSTANCE_CHECKER(KVMState, KVM_STATE,
207 TYPE_KVM_ACCEL)
208
209extern KVMState *kvm_state;
210typedef struct Notifier Notifier;
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214bool kvm_has_free_slot(MachineState *ms);
215bool kvm_has_sync_mmu(void);
216int kvm_has_vcpu_events(void);
217int kvm_has_robust_singlestep(void);
218int kvm_has_debugregs(void);
219int kvm_max_nested_state_length(void);
220int kvm_has_pit_state2(void);
221int kvm_has_many_ioeventfds(void);
222int kvm_has_gsi_routing(void);
223int kvm_has_intx_set_mask(void);
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234bool kvm_arm_supports_user_irq(void);
235
236
237#ifdef NEED_CPU_H
238#include "cpu.h"
239
240void kvm_flush_coalesced_mmio_buffer(void);
241
242int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
243 target_ulong len, int type);
244int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
245 target_ulong len, int type);
246void kvm_remove_all_breakpoints(CPUState *cpu);
247int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap);
248
249int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr);
250int kvm_on_sigbus(int code, void *addr);
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254int kvm_ioctl(KVMState *s, int type, ...);
255
256int kvm_vm_ioctl(KVMState *s, int type, ...);
257
258int kvm_vcpu_ioctl(CPUState *cpu, int type, ...);
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267int kvm_device_ioctl(int fd, int type, ...);
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279int kvm_vm_check_attr(KVMState *s, uint32_t group, uint64_t attr);
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291int kvm_device_check_attr(int fd, uint32_t group, uint64_t attr);
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307int kvm_device_access(int fd, int group, uint64_t attr,
308 void *val, bool write, Error **errp);
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320int kvm_create_device(KVMState *s, uint64_t type, bool test);
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330bool kvm_device_supported(int vmfd, uint64_t type);
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334extern const KVMCapabilityInfo kvm_arch_required_capabilities[];
335
336void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run);
337MemTxAttrs kvm_arch_post_run(CPUState *cpu, struct kvm_run *run);
338
339int kvm_arch_handle_exit(CPUState *cpu, struct kvm_run *run);
340
341int kvm_arch_process_async_events(CPUState *cpu);
342
343int kvm_arch_get_registers(CPUState *cpu);
344
345
346#define KVM_PUT_RUNTIME_STATE 1
347
348#define KVM_PUT_RESET_STATE 2
349
350#define KVM_PUT_FULL_STATE 3
351
352int kvm_arch_put_registers(CPUState *cpu, int level);
353
354int kvm_arch_init(MachineState *ms, KVMState *s);
355
356int kvm_arch_init_vcpu(CPUState *cpu);
357int kvm_arch_destroy_vcpu(CPUState *cpu);
358
359bool kvm_vcpu_id_is_valid(int vcpu_id);
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362unsigned long kvm_arch_vcpu_id(CPUState *cpu);
363
364#ifdef KVM_HAVE_MCE_INJECTION
365void kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr);
366#endif
367
368void kvm_arch_init_irq_routing(KVMState *s);
369
370int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route,
371 uint64_t address, uint32_t data, PCIDevice *dev);
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374int kvm_arch_add_msi_route_post(struct kvm_irq_routing_entry *route,
375 int vector, PCIDevice *dev);
376
377int kvm_arch_release_virq_post(int virq);
378
379int kvm_arch_msi_data_to_gsi(uint32_t data);
380
381int kvm_set_irq(KVMState *s, int irq, int level);
382int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg);
383
384void kvm_irqchip_add_irq_route(KVMState *s, int gsi, int irqchip, int pin);
385
386void kvm_irqchip_add_change_notifier(Notifier *n);
387void kvm_irqchip_remove_change_notifier(Notifier *n);
388void kvm_irqchip_change_notify(void);
389
390void kvm_get_apic_state(DeviceState *d, struct kvm_lapic_state *kapic);
391
392struct kvm_guest_debug;
393struct kvm_debug_exit_arch;
394
395struct kvm_sw_breakpoint {
396 target_ulong pc;
397 target_ulong saved_insn;
398 int use_count;
399 QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
400};
401
402struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *cpu,
403 target_ulong pc);
404
405int kvm_sw_breakpoints_active(CPUState *cpu);
406
407int kvm_arch_insert_sw_breakpoint(CPUState *cpu,
408 struct kvm_sw_breakpoint *bp);
409int kvm_arch_remove_sw_breakpoint(CPUState *cpu,
410 struct kvm_sw_breakpoint *bp);
411int kvm_arch_insert_hw_breakpoint(target_ulong addr,
412 target_ulong len, int type);
413int kvm_arch_remove_hw_breakpoint(target_ulong addr,
414 target_ulong len, int type);
415void kvm_arch_remove_all_hw_breakpoints(void);
416
417void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg);
418
419bool kvm_arch_stop_on_emulation_error(CPUState *cpu);
420
421int kvm_check_extension(KVMState *s, unsigned int extension);
422
423int kvm_vm_check_extension(KVMState *s, unsigned int extension);
424
425#define kvm_vm_enable_cap(s, capability, cap_flags, ...) \
426 ({ \
427 struct kvm_enable_cap cap = { \
428 .cap = capability, \
429 .flags = cap_flags, \
430 }; \
431 uint64_t args_tmp[] = { __VA_ARGS__ }; \
432 size_t n = MIN(ARRAY_SIZE(args_tmp), ARRAY_SIZE(cap.args)); \
433 memcpy(cap.args, args_tmp, n * sizeof(cap.args[0])); \
434 kvm_vm_ioctl(s, KVM_ENABLE_CAP, &cap); \
435 })
436
437#define kvm_vcpu_enable_cap(cpu, capability, cap_flags, ...) \
438 ({ \
439 struct kvm_enable_cap cap = { \
440 .cap = capability, \
441 .flags = cap_flags, \
442 }; \
443 uint64_t args_tmp[] = { __VA_ARGS__ }; \
444 size_t n = MIN(ARRAY_SIZE(args_tmp), ARRAY_SIZE(cap.args)); \
445 memcpy(cap.args, args_tmp, n * sizeof(cap.args[0])); \
446 kvm_vcpu_ioctl(cpu, KVM_ENABLE_CAP, &cap); \
447 })
448
449uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function,
450 uint32_t index, int reg);
451uint64_t kvm_arch_get_supported_msr_feature(KVMState *s, uint32_t index);
452
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454void kvm_set_sigmask_len(KVMState *s, unsigned int sigmask_len);
455
456#if !defined(CONFIG_USER_ONLY)
457int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr,
458 hwaddr *phys_addr);
459#endif
460
461#endif
462
463void kvm_cpu_synchronize_state(CPUState *cpu);
464
465void kvm_init_cpu_signals(CPUState *cpu);
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478int kvm_irqchip_add_msi_route(KVMState *s, int vector, PCIDevice *dev);
479int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg,
480 PCIDevice *dev);
481void kvm_irqchip_commit_routes(KVMState *s);
482void kvm_irqchip_release_virq(KVMState *s, int virq);
483
484int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter);
485int kvm_irqchip_add_hv_sint_route(KVMState *s, uint32_t vcpu, uint32_t sint);
486
487int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
488 EventNotifier *rn, int virq);
489int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
490 int virq);
491int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n,
492 EventNotifier *rn, qemu_irq irq);
493int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n,
494 qemu_irq irq);
495void kvm_irqchip_set_qemuirq_gsi(KVMState *s, qemu_irq irq, int gsi);
496void kvm_pc_setup_irq_routing(bool pci_enabled);
497void kvm_init_irq_routing(KVMState *s);
498
499bool kvm_kernel_irqchip_allowed(void);
500bool kvm_kernel_irqchip_required(void);
501bool kvm_kernel_irqchip_split(void);
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513int kvm_arch_irqchip_create(KVMState *s);
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523int kvm_set_one_reg(CPUState *cs, uint64_t id, void *source);
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533int kvm_get_one_reg(CPUState *cs, uint64_t id, void *target);
534struct ppc_radix_page_info *kvm_get_radix_page_info(void);
535int kvm_get_max_memslots(void);
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538void kvm_resample_fd_notify(int gsi);
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546bool kvm_cpu_check_are_resettable(void);
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548bool kvm_arch_cpu_check_are_resettable(void);
549
550bool kvm_dirty_ring_enabled(void);
551#endif
552