PPC: Enable doorbell excp handlers
[qemu.git] / kvm.h
1 /*
2 * QEMU KVM support
3 *
4 * Copyright IBM, Corp. 2008
5 *
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
8 *
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.
11 *
12 */
13
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
21 #ifdef CONFIG_KVM
22 #include <linux/kvm.h>
23 #endif
24
25 extern int kvm_allowed;
26
27 #if defined CONFIG_KVM || !defined NEED_CPU_H
28 #define kvm_enabled() (kvm_allowed)
29 #else
30 #define kvm_enabled() (0)
31 #endif
32
33 struct kvm_run;
34 struct kvm_lapic_state;
35
36 typedef struct KVMCapabilityInfo {
37 const char *name;
38 int value;
39 } KVMCapabilityInfo;
40
41 #define KVM_CAP_INFO(CAP) { "KVM_CAP_" stringify(CAP), KVM_CAP_##CAP }
42 #define KVM_CAP_LAST_INFO { NULL, 0 }
43
44 /* external API */
45
46 int kvm_init(void);
47
48 int kvm_has_sync_mmu(void);
49 int kvm_has_vcpu_events(void);
50 int kvm_has_robust_singlestep(void);
51 int kvm_has_debugregs(void);
52 int kvm_has_xsave(void);
53 int kvm_has_xcrs(void);
54 int kvm_has_many_ioeventfds(void);
55 int kvm_has_gsi_routing(void);
56
57 int kvm_allows_irq0_override(void);
58
59 #ifdef NEED_CPU_H
60 int kvm_init_vcpu(CPUState *env);
61
62 int kvm_cpu_exec(CPUState *env);
63
64 #if !defined(CONFIG_USER_ONLY)
65 void kvm_setup_guest_memory(void *start, size_t size);
66
67 int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
68 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
69 void kvm_flush_coalesced_mmio_buffer(void);
70 #endif
71
72 int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
73 target_ulong len, int type);
74 int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
75 target_ulong len, int type);
76 void kvm_remove_all_breakpoints(CPUState *current_env);
77 int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
78 #ifndef _WIN32
79 int kvm_set_signal_mask(CPUState *env, const sigset_t *sigset);
80 #endif
81
82 int kvm_pit_in_kernel(void);
83 int kvm_irqchip_in_kernel(void);
84
85 int kvm_on_sigbus_vcpu(CPUState *env, int code, void *addr);
86 int kvm_on_sigbus(int code, void *addr);
87
88 /* internal API */
89
90 struct KVMState;
91 typedef struct KVMState KVMState;
92 extern KVMState *kvm_state;
93
94 int kvm_ioctl(KVMState *s, int type, ...);
95
96 int kvm_vm_ioctl(KVMState *s, int type, ...);
97
98 int kvm_vcpu_ioctl(CPUState *env, int type, ...);
99
100 /* Arch specific hooks */
101
102 extern const KVMCapabilityInfo kvm_arch_required_capabilities[];
103
104 void kvm_arch_pre_run(CPUState *env, struct kvm_run *run);
105 void kvm_arch_post_run(CPUState *env, struct kvm_run *run);
106
107 int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run);
108
109 int kvm_arch_process_async_events(CPUState *env);
110
111 int kvm_arch_get_registers(CPUState *env);
112
113 /* state subset only touched by the VCPU itself during runtime */
114 #define KVM_PUT_RUNTIME_STATE 1
115 /* state subset modified during VCPU reset */
116 #define KVM_PUT_RESET_STATE 2
117 /* full state set, modified during initialization or on vmload */
118 #define KVM_PUT_FULL_STATE 3
119
120 int kvm_arch_put_registers(CPUState *env, int level);
121
122 int kvm_arch_init(KVMState *s);
123
124 int kvm_arch_init_vcpu(CPUState *env);
125
126 void kvm_arch_reset_vcpu(CPUState *env);
127
128 int kvm_arch_on_sigbus_vcpu(CPUState *env, int code, void *addr);
129 int kvm_arch_on_sigbus(int code, void *addr);
130
131 void kvm_arch_init_irq_routing(KVMState *s);
132
133 int kvm_irqchip_set_irq(KVMState *s, int irq, int level);
134
135 void kvm_irqchip_add_route(KVMState *s, int gsi, int irqchip, int pin);
136 int kvm_irqchip_commit_routes(KVMState *s);
137
138 void kvm_put_apic_state(DeviceState *d, struct kvm_lapic_state *kapic);
139 void kvm_get_apic_state(DeviceState *d, struct kvm_lapic_state *kapic);
140
141 struct kvm_guest_debug;
142 struct kvm_debug_exit_arch;
143
144 struct kvm_sw_breakpoint {
145 target_ulong pc;
146 target_ulong saved_insn;
147 int use_count;
148 QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
149 };
150
151 QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
152
153 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
154 target_ulong pc);
155
156 int kvm_sw_breakpoints_active(CPUState *env);
157
158 int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
159 struct kvm_sw_breakpoint *bp);
160 int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
161 struct kvm_sw_breakpoint *bp);
162 int kvm_arch_insert_hw_breakpoint(target_ulong addr,
163 target_ulong len, int type);
164 int kvm_arch_remove_hw_breakpoint(target_ulong addr,
165 target_ulong len, int type);
166 void kvm_arch_remove_all_hw_breakpoints(void);
167
168 void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
169
170 bool kvm_arch_stop_on_emulation_error(CPUState *env);
171
172 int kvm_check_extension(KVMState *s, unsigned int extension);
173
174 uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function,
175 uint32_t index, int reg);
176 void kvm_cpu_synchronize_state(CPUState *env);
177 void kvm_cpu_synchronize_post_reset(CPUState *env);
178 void kvm_cpu_synchronize_post_init(CPUState *env);
179
180 /* generic hooks - to be moved/refactored once there are more users */
181
182 static inline void cpu_synchronize_state(CPUState *env)
183 {
184 if (kvm_enabled()) {
185 kvm_cpu_synchronize_state(env);
186 }
187 }
188
189 static inline void cpu_synchronize_post_reset(CPUState *env)
190 {
191 if (kvm_enabled()) {
192 kvm_cpu_synchronize_post_reset(env);
193 }
194 }
195
196 static inline void cpu_synchronize_post_init(CPUState *env)
197 {
198 if (kvm_enabled()) {
199 kvm_cpu_synchronize_post_init(env);
200 }
201 }
202
203
204 #if !defined(CONFIG_USER_ONLY)
205 int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr,
206 target_phys_addr_t *phys_addr);
207 #endif
208
209 #endif
210 int kvm_set_ioeventfd_mmio_long(int fd, uint32_t adr, uint32_t val, bool assign);
211
212 int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign);
213 #endif