cadence_ttc: initial version of device model
[qemu-kvm.git] / kvm.h
blobf9f1dc86b3e3de40aaf55717702ebf397a82fcc3
1 /*
2 * QEMU KVM support
4 * Copyright IBM, Corp. 2008
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
10 * See the COPYING file in the top-level directory.
14 #ifndef QEMU_KVM_H
15 #define QEMU_KVM_H
17 #include <errno.h>
18 #include "config-host.h"
19 #include "qemu-queue.h"
21 #ifdef CONFIG_KVM
22 #include <linux/kvm.h>
23 #endif
25 extern int kvm_allowed;
26 extern bool kvm_kernel_irqchip;
28 #if defined CONFIG_KVM || !defined NEED_CPU_H
29 #define kvm_enabled() (kvm_allowed)
30 #define kvm_irqchip_in_kernel() (kvm_kernel_irqchip)
31 #else
32 #define kvm_enabled() (0)
33 #define kvm_irqchip_in_kernel() (false)
34 #endif
36 struct kvm_run;
37 struct kvm_lapic_state;
39 typedef struct KVMCapabilityInfo {
40 const char *name;
41 int value;
42 } KVMCapabilityInfo;
44 #define KVM_CAP_INFO(CAP) { "KVM_CAP_" stringify(CAP), KVM_CAP_##CAP }
45 #define KVM_CAP_LAST_INFO { NULL, 0 }
47 /* external API */
49 int kvm_init(void);
51 int kvm_has_sync_mmu(void);
52 int kvm_has_vcpu_events(void);
53 int kvm_has_robust_singlestep(void);
54 int kvm_has_debugregs(void);
55 int kvm_has_xsave(void);
56 int kvm_has_xcrs(void);
57 int kvm_has_many_ioeventfds(void);
58 int kvm_has_gsi_routing(void);
60 int kvm_allows_irq0_override(void);
62 #ifdef NEED_CPU_H
63 int kvm_init_vcpu(CPUState *env);
65 int kvm_cpu_exec(CPUState *env);
67 #if !defined(CONFIG_USER_ONLY)
68 void kvm_setup_guest_memory(void *start, size_t size);
70 int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
71 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
72 void kvm_flush_coalesced_mmio_buffer(void);
73 #endif
75 int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
76 target_ulong len, int type);
77 int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
78 target_ulong len, int type);
79 void kvm_remove_all_breakpoints(CPUState *current_env);
80 int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
81 #ifndef _WIN32
82 int kvm_set_signal_mask(CPUState *env, const sigset_t *sigset);
83 #endif
85 int kvm_pit_in_kernel(void);
87 int kvm_on_sigbus_vcpu(CPUState *env, int code, void *addr);
88 int kvm_on_sigbus(int code, void *addr);
90 /* internal API */
92 struct KVMState;
93 typedef struct KVMState KVMState;
94 extern KVMState *kvm_state;
96 int kvm_ioctl(KVMState *s, int type, ...);
98 int kvm_vm_ioctl(KVMState *s, int type, ...);
100 int kvm_vcpu_ioctl(CPUState *env, int type, ...);
102 /* Arch specific hooks */
104 extern const KVMCapabilityInfo kvm_arch_required_capabilities[];
106 void kvm_arch_pre_run(CPUState *env, struct kvm_run *run);
107 void kvm_arch_post_run(CPUState *env, struct kvm_run *run);
109 int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run);
111 int kvm_arch_process_async_events(CPUState *env);
113 int kvm_arch_get_registers(CPUState *env);
115 /* state subset only touched by the VCPU itself during runtime */
116 #define KVM_PUT_RUNTIME_STATE 1
117 /* state subset modified during VCPU reset */
118 #define KVM_PUT_RESET_STATE 2
119 /* full state set, modified during initialization or on vmload */
120 #define KVM_PUT_FULL_STATE 3
122 int kvm_arch_put_registers(CPUState *env, int level);
124 int kvm_arch_init(KVMState *s);
126 int kvm_arch_init_vcpu(CPUState *env);
128 void kvm_arch_reset_vcpu(CPUState *env);
130 int kvm_arch_on_sigbus_vcpu(CPUState *env, int code, void *addr);
131 int kvm_arch_on_sigbus(int code, void *addr);
133 void kvm_arch_init_irq_routing(KVMState *s);
135 int kvm_irqchip_set_irq(KVMState *s, int irq, int level);
137 void kvm_irqchip_add_route(KVMState *s, int gsi, int irqchip, int pin);
138 int kvm_irqchip_commit_routes(KVMState *s);
140 void kvm_put_apic_state(DeviceState *d, struct kvm_lapic_state *kapic);
141 void kvm_get_apic_state(DeviceState *d, struct kvm_lapic_state *kapic);
143 struct kvm_guest_debug;
144 struct kvm_debug_exit_arch;
146 struct kvm_sw_breakpoint {
147 target_ulong pc;
148 target_ulong saved_insn;
149 int use_count;
150 QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
153 QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
155 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
156 target_ulong pc);
158 int kvm_sw_breakpoints_active(CPUState *env);
160 int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
161 struct kvm_sw_breakpoint *bp);
162 int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
163 struct kvm_sw_breakpoint *bp);
164 int kvm_arch_insert_hw_breakpoint(target_ulong addr,
165 target_ulong len, int type);
166 int kvm_arch_remove_hw_breakpoint(target_ulong addr,
167 target_ulong len, int type);
168 void kvm_arch_remove_all_hw_breakpoints(void);
170 void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
172 bool kvm_arch_stop_on_emulation_error(CPUState *env);
174 int kvm_check_extension(KVMState *s, unsigned int extension);
176 uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function,
177 uint32_t index, int reg);
178 void kvm_cpu_synchronize_state(CPUState *env);
179 void kvm_cpu_synchronize_post_reset(CPUState *env);
180 void kvm_cpu_synchronize_post_init(CPUState *env);
182 /* generic hooks - to be moved/refactored once there are more users */
184 static inline void cpu_synchronize_state(CPUState *env)
186 if (kvm_enabled()) {
187 kvm_cpu_synchronize_state(env);
191 static inline void cpu_synchronize_post_reset(CPUState *env)
193 if (kvm_enabled()) {
194 kvm_cpu_synchronize_post_reset(env);
198 static inline void cpu_synchronize_post_init(CPUState *env)
200 if (kvm_enabled()) {
201 kvm_cpu_synchronize_post_init(env);
206 #if !defined(CONFIG_USER_ONLY)
207 int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr,
208 target_phys_addr_t *phys_addr);
209 #endif
211 #endif
212 int kvm_set_ioeventfd_mmio_long(int fd, uint32_t adr, uint32_t val, bool assign);
214 int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign);
215 #endif