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14#ifndef QEMU_KVM_H
15#define QEMU_KVM_H
16
17#include "qemu/queue.h"
18#include "qom/cpu.h"
19#include "exec/memattrs.h"
20#include "hw/irq.h"
21
22#ifdef NEED_CPU_H
23# ifdef CONFIG_KVM
24# include <linux/kvm.h>
25# include <linux/kvm_para.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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62#define kvm_irqchip_in_kernel() (kvm_kernel_irqchip)
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72#define kvm_irqchip_is_split() (kvm_split_irqchip)
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82#define kvm_async_interrupts_enabled() (kvm_async_interrupts_allowed)
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90#define kvm_halt_in_kernel() (kvm_halt_in_kernel_allowed)
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99#define kvm_eventfds_enabled() (kvm_eventfds_allowed)
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108#define kvm_irqfds_enabled() (kvm_irqfds_allowed)
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117#define kvm_resamplefds_enabled() (kvm_resamplefds_allowed)
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126#define kvm_msi_via_irqfd_enabled() (kvm_msi_via_irqfd_allowed)
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134#define kvm_gsi_routing_enabled() (kvm_gsi_routing_allowed)
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141#define kvm_gsi_direct_mapping() (kvm_gsi_direct_mapping)
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149#define kvm_readonly_mem_enabled() (kvm_readonly_mem_allowed)
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156#define kvm_direct_msi_enabled() (kvm_direct_msi_allowed)
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162#define kvm_ioeventfd_any_length_enabled() (kvm_ioeventfd_any_length_allowed)
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169#define kvm_msi_devid_required() (kvm_msi_use_devid)
170
171#else
172
173#define kvm_enabled() (0)
174#define kvm_irqchip_in_kernel() (false)
175#define kvm_irqchip_is_split() (false)
176#define kvm_async_interrupts_enabled() (false)
177#define kvm_halt_in_kernel() (false)
178#define kvm_eventfds_enabled() (false)
179#define kvm_irqfds_enabled() (false)
180#define kvm_resamplefds_enabled() (false)
181#define kvm_msi_via_irqfd_enabled() (false)
182#define kvm_gsi_routing_allowed() (false)
183#define kvm_gsi_direct_mapping() (false)
184#define kvm_readonly_mem_enabled() (false)
185#define kvm_direct_msi_enabled() (false)
186#define kvm_ioeventfd_any_length_enabled() (false)
187#define kvm_msi_devid_required() (false)
188
189#endif
190
191struct kvm_run;
192struct kvm_lapic_state;
193struct kvm_irq_routing_entry;
194
195typedef struct KVMCapabilityInfo {
196 const char *name;
197 int value;
198} KVMCapabilityInfo;
199
200#define KVM_CAP_INFO(CAP) { "KVM_CAP_" stringify(CAP), KVM_CAP_##CAP }
201#define KVM_CAP_LAST_INFO { NULL, 0 }
202
203struct KVMState;
204typedef struct KVMState KVMState;
205extern KVMState *kvm_state;
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209bool kvm_has_free_slot(MachineState *ms);
210bool kvm_has_sync_mmu(void);
211int kvm_has_vcpu_events(void);
212int kvm_has_robust_singlestep(void);
213int kvm_has_debugregs(void);
214int kvm_has_pit_state2(void);
215int kvm_has_many_ioeventfds(void);
216int kvm_has_gsi_routing(void);
217int kvm_has_intx_set_mask(void);
218
219int kvm_init_vcpu(CPUState *cpu);
220int kvm_cpu_exec(CPUState *cpu);
221int kvm_destroy_vcpu(CPUState *cpu);
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232bool kvm_arm_supports_user_irq(void);
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240bool kvm_memcrypt_enabled(void);
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248int kvm_memcrypt_encrypt_data(uint8_t *ptr, uint64_t len);
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250
251#ifdef NEED_CPU_H
252#include "cpu.h"
253
254void kvm_flush_coalesced_mmio_buffer(void);
255
256int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
257 target_ulong len, int type);
258int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
259 target_ulong len, int type);
260void kvm_remove_all_breakpoints(CPUState *cpu);
261int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap);
262
263int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr);
264int kvm_on_sigbus(int code, void *addr);
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268void phys_mem_set_alloc(void *(*alloc)(size_t, uint64_t *align, bool shared));
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272int kvm_ioctl(KVMState *s, int type, ...);
273
274int kvm_vm_ioctl(KVMState *s, int type, ...);
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276int kvm_vcpu_ioctl(CPUState *cpu, int type, ...);
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285int kvm_device_ioctl(int fd, int type, ...);
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297int kvm_vm_check_attr(KVMState *s, uint32_t group, uint64_t attr);
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309int kvm_device_check_attr(int fd, uint32_t group, uint64_t attr);
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325int kvm_device_access(int fd, int group, uint64_t attr,
326 void *val, bool write, Error **errp);
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338int kvm_create_device(KVMState *s, uint64_t type, bool test);
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348bool kvm_device_supported(int vmfd, uint64_t type);
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352extern const KVMCapabilityInfo kvm_arch_required_capabilities[];
353
354void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run);
355MemTxAttrs kvm_arch_post_run(CPUState *cpu, struct kvm_run *run);
356
357int kvm_arch_handle_exit(CPUState *cpu, struct kvm_run *run);
358
359int kvm_arch_process_async_events(CPUState *cpu);
360
361int kvm_arch_get_registers(CPUState *cpu);
362
363
364#define KVM_PUT_RUNTIME_STATE 1
365
366#define KVM_PUT_RESET_STATE 2
367
368#define KVM_PUT_FULL_STATE 3
369
370int kvm_arch_put_registers(CPUState *cpu, int level);
371
372int kvm_arch_init(MachineState *ms, KVMState *s);
373
374int kvm_arch_init_vcpu(CPUState *cpu);
375
376bool kvm_vcpu_id_is_valid(int vcpu_id);
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379unsigned long kvm_arch_vcpu_id(CPUState *cpu);
380
381#ifdef TARGET_I386
382#define KVM_HAVE_MCE_INJECTION 1
383void kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr);
384#endif
385
386void kvm_arch_init_irq_routing(KVMState *s);
387
388int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route,
389 uint64_t address, uint32_t data, PCIDevice *dev);
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392int kvm_arch_add_msi_route_post(struct kvm_irq_routing_entry *route,
393 int vector, PCIDevice *dev);
394
395int kvm_arch_release_virq_post(int virq);
396
397int kvm_arch_msi_data_to_gsi(uint32_t data);
398
399int kvm_set_irq(KVMState *s, int irq, int level);
400int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg);
401
402void kvm_irqchip_add_irq_route(KVMState *s, int gsi, int irqchip, int pin);
403
404void kvm_get_apic_state(DeviceState *d, struct kvm_lapic_state *kapic);
405
406struct kvm_guest_debug;
407struct kvm_debug_exit_arch;
408
409struct kvm_sw_breakpoint {
410 target_ulong pc;
411 target_ulong saved_insn;
412 int use_count;
413 QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
414};
415
416QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
417
418struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *cpu,
419 target_ulong pc);
420
421int kvm_sw_breakpoints_active(CPUState *cpu);
422
423int kvm_arch_insert_sw_breakpoint(CPUState *cpu,
424 struct kvm_sw_breakpoint *bp);
425int kvm_arch_remove_sw_breakpoint(CPUState *cpu,
426 struct kvm_sw_breakpoint *bp);
427int kvm_arch_insert_hw_breakpoint(target_ulong addr,
428 target_ulong len, int type);
429int kvm_arch_remove_hw_breakpoint(target_ulong addr,
430 target_ulong len, int type);
431void kvm_arch_remove_all_hw_breakpoints(void);
432
433void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg);
434
435bool kvm_arch_stop_on_emulation_error(CPUState *cpu);
436
437int kvm_check_extension(KVMState *s, unsigned int extension);
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439int kvm_vm_check_extension(KVMState *s, unsigned int extension);
440
441#define kvm_vm_enable_cap(s, capability, cap_flags, ...) \
442 ({ \
443 struct kvm_enable_cap cap = { \
444 .cap = capability, \
445 .flags = cap_flags, \
446 }; \
447 uint64_t args_tmp[] = { __VA_ARGS__ }; \
448 size_t n = MIN(ARRAY_SIZE(args_tmp), ARRAY_SIZE(cap.args)); \
449 memcpy(cap.args, args_tmp, n * sizeof(cap.args[0])); \
450 kvm_vm_ioctl(s, KVM_ENABLE_CAP, &cap); \
451 })
452
453#define kvm_vcpu_enable_cap(cpu, capability, cap_flags, ...) \
454 ({ \
455 struct kvm_enable_cap cap = { \
456 .cap = capability, \
457 .flags = cap_flags, \
458 }; \
459 uint64_t args_tmp[] = { __VA_ARGS__ }; \
460 size_t n = MIN(ARRAY_SIZE(args_tmp), ARRAY_SIZE(cap.args)); \
461 memcpy(cap.args, args_tmp, n * sizeof(cap.args[0])); \
462 kvm_vcpu_ioctl(cpu, KVM_ENABLE_CAP, &cap); \
463 })
464
465uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function,
466 uint32_t index, int reg);
467
468void kvm_set_sigmask_len(KVMState *s, unsigned int sigmask_len);
469
470#if !defined(CONFIG_USER_ONLY)
471int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr,
472 hwaddr *phys_addr);
473#endif
474
475#endif
476
477void kvm_cpu_synchronize_state(CPUState *cpu);
478void kvm_cpu_synchronize_post_reset(CPUState *cpu);
479void kvm_cpu_synchronize_post_init(CPUState *cpu);
480void kvm_cpu_synchronize_pre_loadvm(CPUState *cpu);
481
482void kvm_init_cpu_signals(CPUState *cpu);
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495int kvm_irqchip_add_msi_route(KVMState *s, int vector, PCIDevice *dev);
496int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg,
497 PCIDevice *dev);
498void kvm_irqchip_commit_routes(KVMState *s);
499void kvm_irqchip_release_virq(KVMState *s, int virq);
500
501int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter);
502int kvm_irqchip_add_hv_sint_route(KVMState *s, uint32_t vcpu, uint32_t sint);
503
504int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
505 EventNotifier *rn, int virq);
506int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
507 int virq);
508int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n,
509 EventNotifier *rn, qemu_irq irq);
510int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n,
511 qemu_irq irq);
512void kvm_irqchip_set_qemuirq_gsi(KVMState *s, qemu_irq irq, int gsi);
513void kvm_pc_gsi_handler(void *opaque, int n, int level);
514void kvm_pc_setup_irq_routing(bool pci_enabled);
515void kvm_init_irq_routing(KVMState *s);
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528int kvm_arch_irqchip_create(MachineState *ms, KVMState *s);
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538int kvm_set_one_reg(CPUState *cs, uint64_t id, void *source);
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548int kvm_get_one_reg(CPUState *cs, uint64_t id, void *target);
549struct ppc_radix_page_info *kvm_get_radix_page_info(void);
550int kvm_get_max_memslots(void);
551#endif
552