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05330448 AL |
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 | ||
ca821806 | 17 | #include <errno.h> |
1c14f162 | 18 | #include "config-host.h" |
1de7afc9 | 19 | #include "qemu/queue.h" |
504134d2 | 20 | #include "qom/cpu.h" |
4c663752 | 21 | #include "exec/memattrs.h" |
197e3524 | 22 | #include "hw/irq.h" |
05330448 | 23 | |
ca821806 MT |
24 | #ifdef CONFIG_KVM |
25 | #include <linux/kvm.h> | |
bc74b7db | 26 | #include <linux/kvm_para.h> |
9ca58923 EH |
27 | #else |
28 | /* These constants must never be used at runtime if kvm_enabled() is false. | |
29 | * They exist so we don't need #ifdefs around KVM-specific code that already | |
30 | * checks kvm_enabled() properly. | |
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 | |
d61a23ba | 41 | #define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT 0 |
ca821806 | 42 | #endif |
05330448 | 43 | |
d5286af5 | 44 | extern bool kvm_allowed; |
3d4b2649 | 45 | extern bool kvm_kernel_irqchip; |
7ae26bd4 | 46 | extern bool kvm_async_interrupts_allowed; |
215e79c0 | 47 | extern bool kvm_halt_in_kernel_allowed; |
69e03ae6 | 48 | extern bool kvm_eventfds_allowed; |
cc7e0ddf | 49 | extern bool kvm_irqfds_allowed; |
f41389ae | 50 | extern bool kvm_resamplefds_allowed; |
614e41bc | 51 | extern bool kvm_msi_via_irqfd_allowed; |
f3e1bed8 | 52 | extern bool kvm_gsi_routing_allowed; |
76fe21de | 53 | extern bool kvm_gsi_direct_mapping; |
df9c8b75 | 54 | extern bool kvm_readonly_mem_allowed; |
98c8573e PB |
55 | |
56 | #if defined CONFIG_KVM || !defined NEED_CPU_H | |
3d4b2649 | 57 | #define kvm_enabled() (kvm_allowed) |
96fda35a PM |
58 | /** |
59 | * kvm_irqchip_in_kernel: | |
60 | * | |
61 | * Returns: true if the user asked us to create an in-kernel | |
62 | * irqchip via the "kernel_irqchip=on" machine option. | |
63 | * What this actually means is architecture and machine model | |
64 | * specific: on PC, for instance, it means that the LAPIC, | |
65 | * IOAPIC and PIT are all in kernel. This function should never | |
66 | * be used from generic target-independent code: use one of the | |
67 | * following functions or some other specific check instead. | |
68 | */ | |
3d4b2649 | 69 | #define kvm_irqchip_in_kernel() (kvm_kernel_irqchip) |
7ae26bd4 PM |
70 | |
71 | /** | |
72 | * kvm_async_interrupts_enabled: | |
73 | * | |
74 | * Returns: true if we can deliver interrupts to KVM | |
75 | * asynchronously (ie by ioctl from any thread at any time) | |
76 | * rather than having to do interrupt delivery synchronously | |
77 | * (where the vcpu must be stopped at a suitable point first). | |
78 | */ | |
79 | #define kvm_async_interrupts_enabled() (kvm_async_interrupts_allowed) | |
80 | ||
215e79c0 AG |
81 | /** |
82 | * kvm_halt_in_kernel | |
83 | * | |
84 | * Returns: true if halted cpus should still get a KVM_RUN ioctl to run | |
85 | * inside of kernel space. This only works if MP state is implemented. | |
86 | */ | |
87 | #define kvm_halt_in_kernel() (kvm_halt_in_kernel_allowed) | |
88 | ||
69e03ae6 NN |
89 | /** |
90 | * kvm_eventfds_enabled: | |
91 | * | |
92 | * Returns: true if we can use eventfds to receive notifications | |
93 | * from a KVM CPU (ie the kernel supports eventds and we are running | |
94 | * with a configuration where it is meaningful to use them). | |
95 | */ | |
96 | #define kvm_eventfds_enabled() (kvm_eventfds_allowed) | |
97 | ||
cc7e0ddf PM |
98 | /** |
99 | * kvm_irqfds_enabled: | |
100 | * | |
101 | * Returns: true if we can use irqfds to inject interrupts into | |
102 | * a KVM CPU (ie the kernel supports irqfds and we are running | |
103 | * with a configuration where it is meaningful to use them). | |
104 | */ | |
105 | #define kvm_irqfds_enabled() (kvm_irqfds_allowed) | |
106 | ||
f41389ae EA |
107 | /** |
108 | * kvm_resamplefds_enabled: | |
109 | * | |
110 | * Returns: true if we can use resamplefds to inject interrupts into | |
111 | * a KVM CPU (ie the kernel supports resamplefds and we are running | |
112 | * with a configuration where it is meaningful to use them). | |
113 | */ | |
114 | #define kvm_resamplefds_enabled() (kvm_resamplefds_allowed) | |
115 | ||
614e41bc PM |
116 | /** |
117 | * kvm_msi_via_irqfd_enabled: | |
118 | * | |
119 | * Returns: true if we can route a PCI MSI (Message Signaled Interrupt) | |
120 | * to a KVM CPU via an irqfd. This requires that the kernel supports | |
121 | * this and that we're running in a configuration that permits it. | |
122 | */ | |
123 | #define kvm_msi_via_irqfd_enabled() (kvm_msi_via_irqfd_allowed) | |
124 | ||
f3e1bed8 PM |
125 | /** |
126 | * kvm_gsi_routing_enabled: | |
127 | * | |
128 | * Returns: true if GSI routing is enabled (ie the kernel supports | |
129 | * it and we're running in a configuration that permits it). | |
130 | */ | |
131 | #define kvm_gsi_routing_enabled() (kvm_gsi_routing_allowed) | |
132 | ||
76fe21de AK |
133 | /** |
134 | * kvm_gsi_direct_mapping: | |
135 | * | |
136 | * Returns: true if GSI direct mapping is enabled. | |
137 | */ | |
138 | #define kvm_gsi_direct_mapping() (kvm_gsi_direct_mapping) | |
139 | ||
df9c8b75 JJ |
140 | /** |
141 | * kvm_readonly_mem_enabled: | |
142 | * | |
143 | * Returns: true if KVM readonly memory is enabled (ie the kernel | |
144 | * supports it and we're running in a configuration that permits it). | |
145 | */ | |
146 | #define kvm_readonly_mem_enabled() (kvm_readonly_mem_allowed) | |
147 | ||
05330448 | 148 | #else |
3d4b2649 JK |
149 | #define kvm_enabled() (0) |
150 | #define kvm_irqchip_in_kernel() (false) | |
7ae26bd4 | 151 | #define kvm_async_interrupts_enabled() (false) |
215e79c0 | 152 | #define kvm_halt_in_kernel() (false) |
69e03ae6 | 153 | #define kvm_eventfds_enabled() (false) |
cc7e0ddf | 154 | #define kvm_irqfds_enabled() (false) |
879904e8 | 155 | #define kvm_resamplefds_enabled() (false) |
614e41bc | 156 | #define kvm_msi_via_irqfd_enabled() (false) |
f3e1bed8 | 157 | #define kvm_gsi_routing_allowed() (false) |
76fe21de | 158 | #define kvm_gsi_direct_mapping() (false) |
df9c8b75 | 159 | #define kvm_readonly_mem_enabled() (false) |
05330448 AL |
160 | #endif |
161 | ||
162 | struct kvm_run; | |
680c1c6f | 163 | struct kvm_lapic_state; |
9e03a040 | 164 | struct kvm_irq_routing_entry; |
05330448 | 165 | |
94a8d39a JK |
166 | typedef 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 | ||
92b4e489 JK |
174 | struct KVMState; |
175 | typedef struct KVMState KVMState; | |
176 | extern KVMState *kvm_state; | |
177 | ||
05330448 AL |
178 | /* external API */ |
179 | ||
b8865591 | 180 | bool kvm_has_free_slot(MachineState *ms); |
00a1555e PB |
181 | int kvm_has_sync_mmu(void); |
182 | int kvm_has_vcpu_events(void); | |
183 | int kvm_has_robust_singlestep(void); | |
ff44f1a3 | 184 | int kvm_has_debugregs(void); |
f1665b21 SY |
185 | int kvm_has_xsave(void); |
186 | int kvm_has_xcrs(void); | |
8a7c7393 | 187 | int kvm_has_pit_state2(void); |
d2f2b8a7 | 188 | int kvm_has_many_ioeventfds(void); |
84b058d7 | 189 | int kvm_has_gsi_routing(void); |
3ab73842 | 190 | int kvm_has_intx_set_mask(void); |
00a1555e | 191 | |
504134d2 | 192 | int kvm_init_vcpu(CPUState *cpu); |
1458c363 | 193 | int kvm_cpu_exec(CPUState *cpu); |
05330448 | 194 | |
504134d2 | 195 | #ifdef NEED_CPU_H |
05330448 | 196 | |
c4cfef5e | 197 | void kvm_setup_guest_memory(void *start, size_t size); |
62a2744c | 198 | void kvm_flush_coalesced_mmio_buffer(void); |
f65ed4c1 | 199 | |
62278814 | 200 | int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr, |
e22a25c9 | 201 | target_ulong len, int type); |
62278814 | 202 | int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr, |
e22a25c9 | 203 | target_ulong len, int type); |
1d5791f4 | 204 | void kvm_remove_all_breakpoints(CPUState *cpu); |
38e478ec | 205 | int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap); |
20c20526 | 206 | #ifndef _WIN32 |
491d6e80 | 207 | int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset); |
20c20526 | 208 | #endif |
e22a25c9 | 209 | |
290adf38 | 210 | int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr); |
a1b87fe0 JK |
211 | int kvm_on_sigbus(int code, void *addr); |
212 | ||
05330448 AL |
213 | /* internal API */ |
214 | ||
984b5181 | 215 | int kvm_ioctl(KVMState *s, int type, ...); |
05330448 | 216 | |
984b5181 | 217 | int kvm_vm_ioctl(KVMState *s, int type, ...); |
05330448 | 218 | |
1bc22652 | 219 | int kvm_vcpu_ioctl(CPUState *cpu, int type, ...); |
05330448 | 220 | |
0a6a7cca CD |
221 | /** |
222 | * kvm_device_ioctl - call an ioctl on a kvm device | |
223 | * @fd: The KVM device file descriptor as returned from KVM_CREATE_DEVICE | |
224 | * @type: The device-ctrl ioctl number | |
225 | * | |
226 | * Returns: -errno on error, nonnegative on success | |
227 | */ | |
228 | int kvm_device_ioctl(int fd, int type, ...); | |
229 | ||
d0a073a1 DD |
230 | /** |
231 | * kvm_vm_check_attr - check for existence of a specific vm attribute | |
232 | * @s: The KVMState pointer | |
233 | * @group: the group | |
234 | * @attr: the attribute of that group to query for | |
235 | * | |
236 | * Returns: 1 if the attribute exists | |
237 | * 0 if the attribute either does not exist or if the vm device | |
238 | * interface is unavailable | |
239 | */ | |
240 | int kvm_vm_check_attr(KVMState *s, uint32_t group, uint64_t attr); | |
241 | ||
4b3cfe72 PF |
242 | /** |
243 | * kvm_device_check_attr - check for existence of a specific device attribute | |
244 | * @fd: The device file descriptor | |
245 | * @group: the group | |
246 | * @attr: the attribute of that group to query for | |
247 | * | |
248 | * Returns: 1 if the attribute exists | |
249 | * 0 if the attribute either does not exist or if the vm device | |
250 | * interface is unavailable | |
251 | */ | |
252 | int kvm_device_check_attr(int fd, uint32_t group, uint64_t attr); | |
253 | ||
254 | /** | |
255 | * kvm_device_access - set or get value of a specific vm attribute | |
256 | * @fd: The device file descriptor | |
257 | * @group: the group | |
258 | * @attr: the attribute of that group to set or get | |
259 | * @val: pointer to a storage area for the value | |
260 | * @write: true for set and false for get operation | |
261 | * | |
262 | * This function is not allowed to fail. Use kvm_device_check_attr() | |
263 | * in order to check for the availability of optional attributes. | |
264 | */ | |
265 | void kvm_device_access(int fd, int group, uint64_t attr, | |
266 | void *val, bool write); | |
267 | ||
0a6a7cca CD |
268 | /** |
269 | * kvm_create_device - create a KVM device for the device control API | |
270 | * @KVMState: The KVMState pointer | |
271 | * @type: The KVM device type (see Documentation/virtual/kvm/devices in the | |
272 | * kernel source) | |
273 | * @test: If true, only test if device can be created, but don't actually | |
274 | * create the device. | |
275 | * | |
276 | * Returns: -errno on error, nonnegative on success: @test ? 0 : device fd; | |
277 | */ | |
278 | int kvm_create_device(KVMState *s, uint64_t type, bool test); | |
279 | ||
280 | ||
05330448 AL |
281 | /* Arch specific hooks */ |
282 | ||
94a8d39a JK |
283 | extern const KVMCapabilityInfo kvm_arch_required_capabilities[]; |
284 | ||
20d695a9 | 285 | void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run); |
4c663752 | 286 | MemTxAttrs kvm_arch_post_run(CPUState *cpu, struct kvm_run *run); |
05330448 | 287 | |
20d695a9 | 288 | int kvm_arch_handle_exit(CPUState *cpu, struct kvm_run *run); |
05330448 | 289 | |
20d695a9 | 290 | int kvm_arch_process_async_events(CPUState *cpu); |
0af691d7 | 291 | |
20d695a9 | 292 | int kvm_arch_get_registers(CPUState *cpu); |
05330448 | 293 | |
ea375f9a JK |
294 | /* state subset only touched by the VCPU itself during runtime */ |
295 | #define KVM_PUT_RUNTIME_STATE 1 | |
296 | /* state subset modified during VCPU reset */ | |
297 | #define KVM_PUT_RESET_STATE 2 | |
298 | /* full state set, modified during initialization or on vmload */ | |
299 | #define KVM_PUT_FULL_STATE 3 | |
300 | ||
20d695a9 | 301 | int kvm_arch_put_registers(CPUState *cpu, int level); |
05330448 | 302 | |
b16565b3 | 303 | int kvm_arch_init(MachineState *ms, KVMState *s); |
05330448 | 304 | |
20d695a9 | 305 | int kvm_arch_init_vcpu(CPUState *cpu); |
05330448 | 306 | |
b164e48e EH |
307 | /* Returns VCPU ID to be used on KVM_CREATE_VCPU ioctl() */ |
308 | unsigned long kvm_arch_vcpu_id(CPUState *cpu); | |
309 | ||
20d695a9 | 310 | int kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr); |
a1b87fe0 | 311 | int kvm_arch_on_sigbus(int code, void *addr); |
c0532a76 | 312 | |
84b058d7 JK |
313 | void kvm_arch_init_irq_routing(KVMState *s); |
314 | ||
9e03a040 FB |
315 | int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, |
316 | uint64_t address, uint32_t data); | |
317 | ||
1850b6b7 EA |
318 | int kvm_arch_msi_data_to_gsi(uint32_t data); |
319 | ||
3889c3fa | 320 | int kvm_set_irq(KVMState *s, int irq, int level); |
04fa27f5 | 321 | int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg); |
84b058d7 | 322 | |
1df186df | 323 | void kvm_irqchip_add_irq_route(KVMState *s, int gsi, int irqchip, int pin); |
cb925cf9 | 324 | void kvm_irqchip_commit_routes(KVMState *s); |
84b058d7 | 325 | |
680c1c6f JK |
326 | void kvm_put_apic_state(DeviceState *d, struct kvm_lapic_state *kapic); |
327 | void kvm_get_apic_state(DeviceState *d, struct kvm_lapic_state *kapic); | |
328 | ||
e22a25c9 AL |
329 | struct kvm_guest_debug; |
330 | struct kvm_debug_exit_arch; | |
331 | ||
332 | struct kvm_sw_breakpoint { | |
333 | target_ulong pc; | |
334 | target_ulong saved_insn; | |
335 | int use_count; | |
72cf2d4f | 336 | QTAILQ_ENTRY(kvm_sw_breakpoint) entry; |
e22a25c9 AL |
337 | }; |
338 | ||
72cf2d4f | 339 | QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint); |
e22a25c9 | 340 | |
a60f24b5 | 341 | struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *cpu, |
e22a25c9 AL |
342 | target_ulong pc); |
343 | ||
a60f24b5 | 344 | int kvm_sw_breakpoints_active(CPUState *cpu); |
e22a25c9 | 345 | |
80b7cd73 | 346 | int kvm_arch_insert_sw_breakpoint(CPUState *cpu, |
e22a25c9 | 347 | struct kvm_sw_breakpoint *bp); |
80b7cd73 | 348 | int kvm_arch_remove_sw_breakpoint(CPUState *cpu, |
e22a25c9 AL |
349 | struct kvm_sw_breakpoint *bp); |
350 | int kvm_arch_insert_hw_breakpoint(target_ulong addr, | |
351 | target_ulong len, int type); | |
352 | int kvm_arch_remove_hw_breakpoint(target_ulong addr, | |
353 | target_ulong len, int type); | |
354 | void kvm_arch_remove_all_hw_breakpoints(void); | |
355 | ||
20d695a9 | 356 | void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg); |
e22a25c9 | 357 | |
20d695a9 | 358 | bool kvm_arch_stop_on_emulation_error(CPUState *cpu); |
4513d923 | 359 | |
ad7b8b33 AL |
360 | int kvm_check_extension(KVMState *s, unsigned int extension); |
361 | ||
7d0a07fa AG |
362 | int kvm_vm_check_extension(KVMState *s, unsigned int extension); |
363 | ||
40f1ee27 CH |
364 | #define kvm_vm_enable_cap(s, capability, cap_flags, ...) \ |
365 | ({ \ | |
366 | struct kvm_enable_cap cap = { \ | |
367 | .cap = capability, \ | |
368 | .flags = cap_flags, \ | |
369 | }; \ | |
370 | uint64_t args_tmp[] = { __VA_ARGS__ }; \ | |
371 | int i; \ | |
61c7bbd2 | 372 | for (i = 0; i < (int)ARRAY_SIZE(args_tmp) && \ |
40f1ee27 CH |
373 | i < ARRAY_SIZE(cap.args); i++) { \ |
374 | cap.args[i] = args_tmp[i]; \ | |
375 | } \ | |
376 | kvm_vm_ioctl(s, KVM_ENABLE_CAP, &cap); \ | |
377 | }) | |
378 | ||
379 | #define kvm_vcpu_enable_cap(cpu, capability, cap_flags, ...) \ | |
380 | ({ \ | |
381 | struct kvm_enable_cap cap = { \ | |
382 | .cap = capability, \ | |
383 | .flags = cap_flags, \ | |
384 | }; \ | |
385 | uint64_t args_tmp[] = { __VA_ARGS__ }; \ | |
386 | int i; \ | |
61c7bbd2 | 387 | for (i = 0; i < (int)ARRAY_SIZE(args_tmp) && \ |
40f1ee27 CH |
388 | i < ARRAY_SIZE(cap.args); i++) { \ |
389 | cap.args[i] = args_tmp[i]; \ | |
390 | } \ | |
391 | kvm_vcpu_ioctl(cpu, KVM_ENABLE_CAP, &cap); \ | |
392 | }) | |
393 | ||
ba9bc59e | 394 | uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function, |
c958a8bd | 395 | uint32_t index, int reg); |
e22a25c9 | 396 | |
aed6efb9 JH |
397 | void kvm_set_sigmask_len(KVMState *s, unsigned int sigmask_len); |
398 | ||
13eed94e IM |
399 | #if !defined(CONFIG_USER_ONLY) |
400 | int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr, | |
401 | hwaddr *phys_addr); | |
402 | #endif | |
403 | ||
404 | #endif /* NEED_CPU_H */ | |
405 | ||
97577fd4 | 406 | void kvm_cpu_synchronize_state(CPUState *cpu); |
13eed94e IM |
407 | void kvm_cpu_synchronize_post_reset(CPUState *cpu); |
408 | void kvm_cpu_synchronize_post_init(CPUState *cpu); | |
de9d61e8 | 409 | void kvm_cpu_clean_state(CPUState *cpu); |
13eed94e | 410 | |
97577fd4 JH |
411 | /* generic hooks - to be moved/refactored once there are more users */ |
412 | ||
413 | static inline void cpu_synchronize_state(CPUState *cpu) | |
414 | { | |
415 | if (kvm_enabled()) { | |
416 | kvm_cpu_synchronize_state(cpu); | |
417 | } | |
418 | } | |
419 | ||
3f24a58f | 420 | static inline void cpu_synchronize_post_reset(CPUState *cpu) |
ea375f9a JK |
421 | { |
422 | if (kvm_enabled()) { | |
3f24a58f | 423 | kvm_cpu_synchronize_post_reset(cpu); |
ea375f9a JK |
424 | } |
425 | } | |
426 | ||
3f24a58f | 427 | static inline void cpu_synchronize_post_init(CPUState *cpu) |
ea375f9a JK |
428 | { |
429 | if (kvm_enabled()) { | |
3f24a58f | 430 | kvm_cpu_synchronize_post_init(cpu); |
ea375f9a JK |
431 | } |
432 | } | |
ca821806 | 433 | |
de9d61e8 MT |
434 | static inline void cpu_clean_state(CPUState *cpu) |
435 | { | |
436 | if (kvm_enabled()) { | |
437 | kvm_cpu_clean_state(cpu); | |
438 | } | |
439 | } | |
440 | ||
92b4e489 | 441 | int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg); |
cc57407e | 442 | int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg); |
1e2aa8be | 443 | void kvm_irqchip_release_virq(KVMState *s, int virq); |
39853bbc | 444 | |
d426d9fb CH |
445 | int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter); |
446 | ||
1c9b71a7 EA |
447 | int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n, |
448 | EventNotifier *rn, int virq); | |
449 | int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n, | |
450 | int virq); | |
197e3524 EA |
451 | int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n, |
452 | EventNotifier *rn, qemu_irq irq); | |
453 | int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, | |
454 | qemu_irq irq); | |
455 | void kvm_irqchip_set_qemuirq_gsi(KVMState *s, qemu_irq irq, int gsi); | |
d8ee0384 JB |
456 | void kvm_pc_gsi_handler(void *opaque, int n, int level); |
457 | void kvm_pc_setup_irq_routing(bool pci_enabled); | |
7b774593 | 458 | void kvm_init_irq_routing(KVMState *s); |
d6032e06 CD |
459 | |
460 | /** | |
461 | * kvm_arch_irqchip_create: | |
462 | * @KVMState: The KVMState pointer | |
463 | * | |
464 | * Allow architectures to create an in-kernel irq chip themselves. | |
465 | * | |
466 | * Returns: < 0: error | |
467 | * 0: irq chip was not created | |
468 | * > 0: irq chip was created | |
469 | */ | |
470 | int kvm_arch_irqchip_create(KVMState *s); | |
ada4135f CH |
471 | |
472 | /** | |
473 | * kvm_set_one_reg - set a register value in KVM via KVM_SET_ONE_REG ioctl | |
474 | * @id: The register ID | |
475 | * @source: The pointer to the value to be set. It must point to a variable | |
476 | * of the correct type/size for the register being accessed. | |
477 | * | |
478 | * Returns: 0 on success, or a negative errno on failure. | |
479 | */ | |
480 | int kvm_set_one_reg(CPUState *cs, uint64_t id, void *source); | |
481 | ||
482 | /** | |
483 | * kvm_get_one_reg - get a register value from KVM via KVM_GET_ONE_REG ioctl | |
484 | * @id: The register ID | |
485 | * @target: The pointer where the value is to be stored. It must point to a | |
486 | * variable of the correct type/size for the register being accessed. | |
487 | * | |
488 | * Returns: 0 on success, or a negative errno on failure. | |
489 | */ | |
490 | int kvm_get_one_reg(CPUState *cs, uint64_t id, void *target); | |
05330448 | 491 | #endif |