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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 | ||
1de7afc9 | 17 | #include "qemu/queue.h" |
2e5b09fd | 18 | #include "hw/core/cpu.h" |
4c663752 | 19 | #include "exec/memattrs.h" |
940e43aa | 20 | #include "qemu/accel.h" |
db1015e9 | 21 | #include "qom/object.h" |
05330448 | 22 | |
cbca3722 TH |
23 | #ifdef NEED_CPU_H |
24 | # ifdef CONFIG_KVM | |
25 | # include <linux/kvm.h> | |
cbca3722 TH |
26 | # define CONFIG_KVM_IS_POSSIBLE |
27 | # endif | |
28 | #else | |
29 | # define CONFIG_KVM_IS_POSSIBLE | |
ca821806 | 30 | #endif |
05330448 | 31 | |
cbca3722 TH |
32 | #ifdef CONFIG_KVM_IS_POSSIBLE |
33 | ||
d5286af5 | 34 | extern bool kvm_allowed; |
3d4b2649 | 35 | extern bool kvm_kernel_irqchip; |
32c18a2d | 36 | extern bool kvm_split_irqchip; |
7ae26bd4 | 37 | extern bool kvm_async_interrupts_allowed; |
215e79c0 | 38 | extern bool kvm_halt_in_kernel_allowed; |
69e03ae6 | 39 | extern bool kvm_eventfds_allowed; |
cc7e0ddf | 40 | extern bool kvm_irqfds_allowed; |
f41389ae | 41 | extern bool kvm_resamplefds_allowed; |
614e41bc | 42 | extern bool kvm_msi_via_irqfd_allowed; |
f3e1bed8 | 43 | extern bool kvm_gsi_routing_allowed; |
76fe21de | 44 | extern bool kvm_gsi_direct_mapping; |
df9c8b75 | 45 | extern bool kvm_readonly_mem_allowed; |
50bf31b9 | 46 | extern bool kvm_direct_msi_allowed; |
35108223 | 47 | extern bool kvm_ioeventfd_any_length_allowed; |
767a554a | 48 | extern bool kvm_msi_use_devid; |
98c8573e | 49 | |
3d4b2649 | 50 | #define kvm_enabled() (kvm_allowed) |
96fda35a PM |
51 | /** |
52 | * kvm_irqchip_in_kernel: | |
53 | * | |
31c707fb | 54 | * Returns: true if an in-kernel irqchip was created. |
96fda35a | 55 | * What this actually means is architecture and machine model |
31c707fb EH |
56 | * specific: on PC, for instance, it means that the LAPIC |
57 | * is in kernel. This function should never be used from generic | |
58 | * target-independent code: use one of the following functions or | |
59 | * some other specific check instead. | |
96fda35a | 60 | */ |
3d4b2649 | 61 | #define kvm_irqchip_in_kernel() (kvm_kernel_irqchip) |
7ae26bd4 | 62 | |
32c18a2d MG |
63 | /** |
64 | * kvm_irqchip_is_split: | |
65 | * | |
31c707fb EH |
66 | * Returns: true if the irqchip implementation is split between |
67 | * user and kernel space. The details are architecture and | |
68 | * machine specific. On PC, it means that the PIC, IOAPIC, and | |
69 | * PIT are in user space while the LAPIC is in the kernel. | |
32c18a2d MG |
70 | */ |
71 | #define kvm_irqchip_is_split() (kvm_split_irqchip) | |
72 | ||
7ae26bd4 PM |
73 | /** |
74 | * kvm_async_interrupts_enabled: | |
75 | * | |
76 | * Returns: true if we can deliver interrupts to KVM | |
77 | * asynchronously (ie by ioctl from any thread at any time) | |
78 | * rather than having to do interrupt delivery synchronously | |
79 | * (where the vcpu must be stopped at a suitable point first). | |
80 | */ | |
81 | #define kvm_async_interrupts_enabled() (kvm_async_interrupts_allowed) | |
82 | ||
215e79c0 AG |
83 | /** |
84 | * kvm_halt_in_kernel | |
85 | * | |
86 | * Returns: true if halted cpus should still get a KVM_RUN ioctl to run | |
87 | * inside of kernel space. This only works if MP state is implemented. | |
88 | */ | |
89 | #define kvm_halt_in_kernel() (kvm_halt_in_kernel_allowed) | |
90 | ||
69e03ae6 NN |
91 | /** |
92 | * kvm_eventfds_enabled: | |
93 | * | |
94 | * Returns: true if we can use eventfds to receive notifications | |
95 | * from a KVM CPU (ie the kernel supports eventds and we are running | |
96 | * with a configuration where it is meaningful to use them). | |
97 | */ | |
98 | #define kvm_eventfds_enabled() (kvm_eventfds_allowed) | |
99 | ||
cc7e0ddf PM |
100 | /** |
101 | * kvm_irqfds_enabled: | |
102 | * | |
103 | * Returns: true if we can use irqfds to inject interrupts into | |
104 | * a KVM CPU (ie the kernel supports irqfds and we are running | |
105 | * with a configuration where it is meaningful to use them). | |
106 | */ | |
107 | #define kvm_irqfds_enabled() (kvm_irqfds_allowed) | |
108 | ||
f41389ae EA |
109 | /** |
110 | * kvm_resamplefds_enabled: | |
111 | * | |
112 | * Returns: true if we can use resamplefds to inject interrupts into | |
113 | * a KVM CPU (ie the kernel supports resamplefds and we are running | |
114 | * with a configuration where it is meaningful to use them). | |
115 | */ | |
116 | #define kvm_resamplefds_enabled() (kvm_resamplefds_allowed) | |
117 | ||
614e41bc PM |
118 | /** |
119 | * kvm_msi_via_irqfd_enabled: | |
120 | * | |
121 | * Returns: true if we can route a PCI MSI (Message Signaled Interrupt) | |
122 | * to a KVM CPU via an irqfd. This requires that the kernel supports | |
123 | * this and that we're running in a configuration that permits it. | |
124 | */ | |
125 | #define kvm_msi_via_irqfd_enabled() (kvm_msi_via_irqfd_allowed) | |
126 | ||
f3e1bed8 PM |
127 | /** |
128 | * kvm_gsi_routing_enabled: | |
129 | * | |
130 | * Returns: true if GSI routing is enabled (ie the kernel supports | |
131 | * it and we're running in a configuration that permits it). | |
132 | */ | |
133 | #define kvm_gsi_routing_enabled() (kvm_gsi_routing_allowed) | |
134 | ||
76fe21de AK |
135 | /** |
136 | * kvm_gsi_direct_mapping: | |
137 | * | |
138 | * Returns: true if GSI direct mapping is enabled. | |
139 | */ | |
140 | #define kvm_gsi_direct_mapping() (kvm_gsi_direct_mapping) | |
141 | ||
df9c8b75 JJ |
142 | /** |
143 | * kvm_readonly_mem_enabled: | |
144 | * | |
145 | * Returns: true if KVM readonly memory is enabled (ie the kernel | |
146 | * supports it and we're running in a configuration that permits it). | |
147 | */ | |
148 | #define kvm_readonly_mem_enabled() (kvm_readonly_mem_allowed) | |
149 | ||
50bf31b9 PF |
150 | /** |
151 | * kvm_direct_msi_enabled: | |
152 | * | |
153 | * Returns: true if KVM allows direct MSI injection. | |
154 | */ | |
155 | #define kvm_direct_msi_enabled() (kvm_direct_msi_allowed) | |
156 | ||
35108223 JW |
157 | /** |
158 | * kvm_ioeventfd_any_length_enabled: | |
159 | * Returns: true if KVM allows any length io eventfd. | |
160 | */ | |
161 | #define kvm_ioeventfd_any_length_enabled() (kvm_ioeventfd_any_length_allowed) | |
162 | ||
767a554a PF |
163 | /** |
164 | * kvm_msi_devid_required: | |
165 | * Returns: true if KVM requires a device id to be provided while | |
166 | * defining an MSI routing entry. | |
167 | */ | |
168 | #define kvm_msi_devid_required() (kvm_msi_use_devid) | |
169 | ||
05330448 | 170 | #else |
cbca3722 | 171 | |
3d4b2649 JK |
172 | #define kvm_enabled() (0) |
173 | #define kvm_irqchip_in_kernel() (false) | |
15eafc2e | 174 | #define kvm_irqchip_is_split() (false) |
7ae26bd4 | 175 | #define kvm_async_interrupts_enabled() (false) |
215e79c0 | 176 | #define kvm_halt_in_kernel() (false) |
69e03ae6 | 177 | #define kvm_eventfds_enabled() (false) |
cc7e0ddf | 178 | #define kvm_irqfds_enabled() (false) |
879904e8 | 179 | #define kvm_resamplefds_enabled() (false) |
614e41bc | 180 | #define kvm_msi_via_irqfd_enabled() (false) |
f3e1bed8 | 181 | #define kvm_gsi_routing_allowed() (false) |
76fe21de | 182 | #define kvm_gsi_direct_mapping() (false) |
df9c8b75 | 183 | #define kvm_readonly_mem_enabled() (false) |
50bf31b9 | 184 | #define kvm_direct_msi_enabled() (false) |
35108223 | 185 | #define kvm_ioeventfd_any_length_enabled() (false) |
767a554a | 186 | #define kvm_msi_devid_required() (false) |
cbca3722 TH |
187 | |
188 | #endif /* CONFIG_KVM_IS_POSSIBLE */ | |
05330448 AL |
189 | |
190 | struct kvm_run; | |
680c1c6f | 191 | struct kvm_lapic_state; |
9e03a040 | 192 | struct kvm_irq_routing_entry; |
05330448 | 193 | |
94a8d39a JK |
194 | typedef 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 | ||
92b4e489 | 202 | struct KVMState; |
97e622de EH |
203 | |
204 | #define TYPE_KVM_ACCEL ACCEL_CLASS_NAME("kvm") | |
92b4e489 | 205 | typedef struct KVMState KVMState; |
8110fa1d EH |
206 | DECLARE_INSTANCE_CHECKER(KVMState, KVM_STATE, |
207 | TYPE_KVM_ACCEL) | |
97e622de | 208 | |
92b4e489 | 209 | extern KVMState *kvm_state; |
3607715a | 210 | typedef struct Notifier Notifier; |
92b4e489 | 211 | |
95686908 LM |
212 | typedef struct KVMRouteChange { |
213 | KVMState *s; | |
214 | int changes; | |
215 | } KVMRouteChange; | |
216 | ||
05330448 AL |
217 | /* external API */ |
218 | ||
b8865591 | 219 | bool kvm_has_free_slot(MachineState *ms); |
62dd4eda | 220 | bool kvm_has_sync_mmu(void); |
00a1555e PB |
221 | int kvm_has_vcpu_events(void); |
222 | int kvm_has_robust_singlestep(void); | |
ff44f1a3 | 223 | int kvm_has_debugregs(void); |
ebbfef2f | 224 | int kvm_max_nested_state_length(void); |
8a7c7393 | 225 | int kvm_has_pit_state2(void); |
d2f2b8a7 | 226 | int kvm_has_many_ioeventfds(void); |
84b058d7 | 227 | int kvm_has_gsi_routing(void); |
3ab73842 | 228 | int kvm_has_intx_set_mask(void); |
00a1555e | 229 | |
5d721b78 AG |
230 | /** |
231 | * kvm_arm_supports_user_irq | |
232 | * | |
233 | * Not all KVM implementations support notifications for kernel generated | |
234 | * interrupt events to user space. This function indicates whether the current | |
235 | * KVM implementation does support them. | |
236 | * | |
237 | * Returns: true if KVM supports using kernel generated IRQs from user space | |
238 | */ | |
239 | bool kvm_arm_supports_user_irq(void); | |
240 | ||
b20e3780 | 241 | |
82bd4ca3 PMD |
242 | int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr); |
243 | int kvm_on_sigbus(int code, void *addr); | |
244 | ||
504134d2 | 245 | #ifdef NEED_CPU_H |
33c11879 | 246 | #include "cpu.h" |
05330448 | 247 | |
62a2744c | 248 | void kvm_flush_coalesced_mmio_buffer(void); |
f65ed4c1 | 249 | |
c7f1c537 AB |
250 | /** |
251 | * kvm_update_guest_debug(): ensure KVM debug structures updated | |
252 | * @cs: the CPUState for this cpu | |
253 | * @reinject_trap: KVM trap injection control | |
254 | * | |
255 | * There are usually per-arch specifics which will be handled by | |
256 | * calling down to kvm_arch_update_guest_debug after the generic | |
257 | * fields have been set. | |
258 | */ | |
259 | #ifdef KVM_CAP_SET_GUEST_DEBUG | |
38e478ec | 260 | int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap); |
c7f1c537 AB |
261 | #else |
262 | static inline int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap) | |
263 | { | |
264 | return -EINVAL; | |
265 | } | |
266 | #endif | |
e22a25c9 | 267 | |
05330448 AL |
268 | /* internal API */ |
269 | ||
984b5181 | 270 | int kvm_ioctl(KVMState *s, int type, ...); |
05330448 | 271 | |
984b5181 | 272 | int kvm_vm_ioctl(KVMState *s, int type, ...); |
05330448 | 273 | |
1bc22652 | 274 | int kvm_vcpu_ioctl(CPUState *cpu, int type, ...); |
05330448 | 275 | |
0a6a7cca CD |
276 | /** |
277 | * kvm_device_ioctl - call an ioctl on a kvm device | |
278 | * @fd: The KVM device file descriptor as returned from KVM_CREATE_DEVICE | |
279 | * @type: The device-ctrl ioctl number | |
280 | * | |
281 | * Returns: -errno on error, nonnegative on success | |
282 | */ | |
283 | int kvm_device_ioctl(int fd, int type, ...); | |
284 | ||
d0a073a1 DD |
285 | /** |
286 | * kvm_vm_check_attr - check for existence of a specific vm attribute | |
287 | * @s: The KVMState pointer | |
288 | * @group: the group | |
289 | * @attr: the attribute of that group to query for | |
290 | * | |
291 | * Returns: 1 if the attribute exists | |
292 | * 0 if the attribute either does not exist or if the vm device | |
293 | * interface is unavailable | |
294 | */ | |
295 | int kvm_vm_check_attr(KVMState *s, uint32_t group, uint64_t attr); | |
296 | ||
4b3cfe72 PF |
297 | /** |
298 | * kvm_device_check_attr - check for existence of a specific device attribute | |
299 | * @fd: The device file descriptor | |
300 | * @group: the group | |
301 | * @attr: the attribute of that group to query for | |
302 | * | |
303 | * Returns: 1 if the attribute exists | |
304 | * 0 if the attribute either does not exist or if the vm device | |
305 | * interface is unavailable | |
306 | */ | |
307 | int kvm_device_check_attr(int fd, uint32_t group, uint64_t attr); | |
308 | ||
309 | /** | |
84b6ea05 | 310 | * kvm_device_access - set or get value of a specific device attribute |
4b3cfe72 PF |
311 | * @fd: The device file descriptor |
312 | * @group: the group | |
313 | * @attr: the attribute of that group to set or get | |
314 | * @val: pointer to a storage area for the value | |
315 | * @write: true for set and false for get operation | |
556969e9 | 316 | * @errp: error object handle |
4b3cfe72 | 317 | * |
556969e9 EA |
318 | * Returns: 0 on success |
319 | * < 0 on error | |
320 | * Use kvm_device_check_attr() in order to check for the availability | |
321 | * of optional attributes. | |
4b3cfe72 | 322 | */ |
556969e9 EA |
323 | int kvm_device_access(int fd, int group, uint64_t attr, |
324 | void *val, bool write, Error **errp); | |
4b3cfe72 | 325 | |
0a6a7cca CD |
326 | /** |
327 | * kvm_create_device - create a KVM device for the device control API | |
328 | * @KVMState: The KVMState pointer | |
329 | * @type: The KVM device type (see Documentation/virtual/kvm/devices in the | |
330 | * kernel source) | |
331 | * @test: If true, only test if device can be created, but don't actually | |
332 | * create the device. | |
333 | * | |
334 | * Returns: -errno on error, nonnegative on success: @test ? 0 : device fd; | |
335 | */ | |
336 | int kvm_create_device(KVMState *s, uint64_t type, bool test); | |
337 | ||
29039acf PX |
338 | /** |
339 | * kvm_device_supported - probe whether KVM supports specific device | |
340 | * | |
341 | * @vmfd: The fd handler for VM | |
342 | * @type: type of device | |
343 | * | |
344 | * @return: true if supported, otherwise false. | |
345 | */ | |
346 | bool kvm_device_supported(int vmfd, uint64_t type); | |
0a6a7cca | 347 | |
05330448 AL |
348 | /* Arch specific hooks */ |
349 | ||
94a8d39a JK |
350 | extern const KVMCapabilityInfo kvm_arch_required_capabilities[]; |
351 | ||
3dba0a33 PB |
352 | void kvm_arch_accel_class_init(ObjectClass *oc); |
353 | ||
20d695a9 | 354 | void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run); |
4c663752 | 355 | MemTxAttrs kvm_arch_post_run(CPUState *cpu, struct kvm_run *run); |
05330448 | 356 | |
20d695a9 | 357 | int kvm_arch_handle_exit(CPUState *cpu, struct kvm_run *run); |
05330448 | 358 | |
20d695a9 | 359 | int kvm_arch_process_async_events(CPUState *cpu); |
0af691d7 | 360 | |
20d695a9 | 361 | int kvm_arch_get_registers(CPUState *cpu); |
05330448 | 362 | |
ea375f9a JK |
363 | /* state subset only touched by the VCPU itself during runtime */ |
364 | #define KVM_PUT_RUNTIME_STATE 1 | |
365 | /* state subset modified during VCPU reset */ | |
366 | #define KVM_PUT_RESET_STATE 2 | |
367 | /* full state set, modified during initialization or on vmload */ | |
368 | #define KVM_PUT_FULL_STATE 3 | |
369 | ||
20d695a9 | 370 | int kvm_arch_put_registers(CPUState *cpu, int level); |
05330448 | 371 | |
b16565b3 | 372 | int kvm_arch_init(MachineState *ms, KVMState *s); |
05330448 | 373 | |
20d695a9 | 374 | int kvm_arch_init_vcpu(CPUState *cpu); |
b1115c99 | 375 | int kvm_arch_destroy_vcpu(CPUState *cpu); |
05330448 | 376 | |
41264b38 GK |
377 | bool kvm_vcpu_id_is_valid(int vcpu_id); |
378 | ||
b164e48e EH |
379 | /* Returns VCPU ID to be used on KVM_CREATE_VCPU ioctl() */ |
380 | unsigned long kvm_arch_vcpu_id(CPUState *cpu); | |
381 | ||
e24fd076 | 382 | #ifdef KVM_HAVE_MCE_INJECTION |
2ae41db2 PB |
383 | void kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr); |
384 | #endif | |
c0532a76 | 385 | |
84b058d7 JK |
386 | void kvm_arch_init_irq_routing(KVMState *s); |
387 | ||
9e03a040 | 388 | int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, |
dc9f06ca | 389 | uint64_t address, uint32_t data, PCIDevice *dev); |
9e03a040 | 390 | |
38d87493 PX |
391 | /* Notify arch about newly added MSI routes */ |
392 | int kvm_arch_add_msi_route_post(struct kvm_irq_routing_entry *route, | |
393 | int vector, PCIDevice *dev); | |
394 | /* Notify arch about released MSI routes */ | |
395 | int kvm_arch_release_virq_post(int virq); | |
396 | ||
1850b6b7 EA |
397 | int kvm_arch_msi_data_to_gsi(uint32_t data); |
398 | ||
3889c3fa | 399 | int kvm_set_irq(KVMState *s, int irq, int level); |
04fa27f5 | 400 | int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg); |
84b058d7 | 401 | |
1df186df | 402 | void kvm_irqchip_add_irq_route(KVMState *s, int gsi, int irqchip, int pin); |
84b058d7 | 403 | |
3607715a DG |
404 | void kvm_irqchip_add_change_notifier(Notifier *n); |
405 | void kvm_irqchip_remove_change_notifier(Notifier *n); | |
406 | void kvm_irqchip_change_notify(void); | |
407 | ||
680c1c6f JK |
408 | void kvm_get_apic_state(DeviceState *d, struct kvm_lapic_state *kapic); |
409 | ||
e22a25c9 AL |
410 | struct kvm_guest_debug; |
411 | struct kvm_debug_exit_arch; | |
412 | ||
413 | struct kvm_sw_breakpoint { | |
414 | target_ulong pc; | |
415 | target_ulong saved_insn; | |
416 | int use_count; | |
72cf2d4f | 417 | QTAILQ_ENTRY(kvm_sw_breakpoint) entry; |
e22a25c9 AL |
418 | }; |
419 | ||
a60f24b5 | 420 | struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *cpu, |
e22a25c9 AL |
421 | target_ulong pc); |
422 | ||
a60f24b5 | 423 | int kvm_sw_breakpoints_active(CPUState *cpu); |
e22a25c9 | 424 | |
80b7cd73 | 425 | int kvm_arch_insert_sw_breakpoint(CPUState *cpu, |
e22a25c9 | 426 | struct kvm_sw_breakpoint *bp); |
80b7cd73 | 427 | int kvm_arch_remove_sw_breakpoint(CPUState *cpu, |
e22a25c9 AL |
428 | struct kvm_sw_breakpoint *bp); |
429 | int kvm_arch_insert_hw_breakpoint(target_ulong addr, | |
430 | target_ulong len, int type); | |
431 | int kvm_arch_remove_hw_breakpoint(target_ulong addr, | |
432 | target_ulong len, int type); | |
433 | void kvm_arch_remove_all_hw_breakpoints(void); | |
434 | ||
20d695a9 | 435 | void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg); |
e22a25c9 | 436 | |
20d695a9 | 437 | bool kvm_arch_stop_on_emulation_error(CPUState *cpu); |
4513d923 | 438 | |
ad7b8b33 AL |
439 | int kvm_check_extension(KVMState *s, unsigned int extension); |
440 | ||
7d0a07fa AG |
441 | int kvm_vm_check_extension(KVMState *s, unsigned int extension); |
442 | ||
40f1ee27 CH |
443 | #define kvm_vm_enable_cap(s, capability, cap_flags, ...) \ |
444 | ({ \ | |
445 | struct kvm_enable_cap cap = { \ | |
446 | .cap = capability, \ | |
447 | .flags = cap_flags, \ | |
448 | }; \ | |
449 | uint64_t args_tmp[] = { __VA_ARGS__ }; \ | |
1b7ac7ca GK |
450 | size_t n = MIN(ARRAY_SIZE(args_tmp), ARRAY_SIZE(cap.args)); \ |
451 | memcpy(cap.args, args_tmp, n * sizeof(cap.args[0])); \ | |
40f1ee27 CH |
452 | kvm_vm_ioctl(s, KVM_ENABLE_CAP, &cap); \ |
453 | }) | |
454 | ||
455 | #define kvm_vcpu_enable_cap(cpu, capability, cap_flags, ...) \ | |
456 | ({ \ | |
457 | struct kvm_enable_cap cap = { \ | |
458 | .cap = capability, \ | |
459 | .flags = cap_flags, \ | |
460 | }; \ | |
461 | uint64_t args_tmp[] = { __VA_ARGS__ }; \ | |
1b7ac7ca GK |
462 | size_t n = MIN(ARRAY_SIZE(args_tmp), ARRAY_SIZE(cap.args)); \ |
463 | memcpy(cap.args, args_tmp, n * sizeof(cap.args[0])); \ | |
40f1ee27 CH |
464 | kvm_vcpu_ioctl(cpu, KVM_ENABLE_CAP, &cap); \ |
465 | }) | |
466 | ||
ba9bc59e | 467 | uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function, |
c958a8bd | 468 | uint32_t index, int reg); |
ede146c2 | 469 | uint64_t kvm_arch_get_supported_msr_feature(KVMState *s, uint32_t index); |
f57bceb6 | 470 | |
e22a25c9 | 471 | |
aed6efb9 JH |
472 | void kvm_set_sigmask_len(KVMState *s, unsigned int sigmask_len); |
473 | ||
13eed94e IM |
474 | int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr, |
475 | hwaddr *phys_addr); | |
13eed94e IM |
476 | |
477 | #endif /* NEED_CPU_H */ | |
478 | ||
97577fd4 | 479 | void kvm_cpu_synchronize_state(CPUState *cpu); |
13eed94e | 480 | |
18268b60 PB |
481 | void kvm_init_cpu_signals(CPUState *cpu); |
482 | ||
d1f6af6a PX |
483 | /** |
484 | * kvm_irqchip_add_msi_route - Add MSI route for specific vector | |
def4c557 | 485 | * @c: KVMRouteChange instance. |
d1f6af6a PX |
486 | * @vector: which vector to add. This can be either MSI/MSIX |
487 | * vector. The function will automatically detect whether | |
488 | * MSI/MSIX is enabled, and fetch corresponding MSI | |
489 | * message. | |
490 | * @dev: Owner PCI device to add the route. If @dev is specified | |
491 | * as @NULL, an empty MSI message will be inited. | |
492 | * @return: virq (>=0) when success, errno (<0) when failed. | |
493 | */ | |
def4c557 | 494 | int kvm_irqchip_add_msi_route(KVMRouteChange *c, int vector, PCIDevice *dev); |
dc9f06ca PF |
495 | int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg, |
496 | PCIDevice *dev); | |
3f1fea0f | 497 | void kvm_irqchip_commit_routes(KVMState *s); |
95686908 LM |
498 | |
499 | static inline KVMRouteChange kvm_irqchip_begin_route_changes(KVMState *s) | |
500 | { | |
501 | return (KVMRouteChange) { .s = s, .changes = 0 }; | |
502 | } | |
503 | ||
504 | static inline void kvm_irqchip_commit_route_changes(KVMRouteChange *c) | |
505 | { | |
506 | if (c->changes) { | |
507 | kvm_irqchip_commit_routes(c->s); | |
508 | c->changes = 0; | |
509 | } | |
510 | } | |
511 | ||
1e2aa8be | 512 | void kvm_irqchip_release_virq(KVMState *s, int virq); |
39853bbc | 513 | |
d426d9fb | 514 | int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter); |
977a8d9c | 515 | int kvm_irqchip_add_hv_sint_route(KVMState *s, uint32_t vcpu, uint32_t sint); |
d426d9fb | 516 | |
1c9b71a7 EA |
517 | int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n, |
518 | EventNotifier *rn, int virq); | |
519 | int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n, | |
520 | int virq); | |
197e3524 EA |
521 | int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n, |
522 | EventNotifier *rn, qemu_irq irq); | |
523 | int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, | |
524 | qemu_irq irq); | |
525 | void kvm_irqchip_set_qemuirq_gsi(KVMState *s, qemu_irq irq, int gsi); | |
d8ee0384 | 526 | void kvm_pc_setup_irq_routing(bool pci_enabled); |
7b774593 | 527 | void kvm_init_irq_routing(KVMState *s); |
d6032e06 | 528 | |
4376c40d PB |
529 | bool kvm_kernel_irqchip_allowed(void); |
530 | bool kvm_kernel_irqchip_required(void); | |
531 | bool kvm_kernel_irqchip_split(void); | |
532 | ||
d6032e06 CD |
533 | /** |
534 | * kvm_arch_irqchip_create: | |
535 | * @KVMState: The KVMState pointer | |
536 | * | |
537 | * Allow architectures to create an in-kernel irq chip themselves. | |
538 | * | |
539 | * Returns: < 0: error | |
540 | * 0: irq chip was not created | |
541 | * > 0: irq chip was created | |
542 | */ | |
4376c40d | 543 | int kvm_arch_irqchip_create(KVMState *s); |
ada4135f CH |
544 | |
545 | /** | |
546 | * kvm_set_one_reg - set a register value in KVM via KVM_SET_ONE_REG ioctl | |
547 | * @id: The register ID | |
548 | * @source: The pointer to the value to be set. It must point to a variable | |
549 | * of the correct type/size for the register being accessed. | |
550 | * | |
551 | * Returns: 0 on success, or a negative errno on failure. | |
552 | */ | |
553 | int kvm_set_one_reg(CPUState *cs, uint64_t id, void *source); | |
554 | ||
555 | /** | |
556 | * kvm_get_one_reg - get a register value from KVM via KVM_GET_ONE_REG ioctl | |
557 | * @id: The register ID | |
558 | * @target: The pointer where the value is to be stored. It must point to a | |
559 | * variable of the correct type/size for the register being accessed. | |
560 | * | |
561 | * Returns: 0 on success, or a negative errno on failure. | |
562 | */ | |
563 | int kvm_get_one_reg(CPUState *cs, uint64_t id, void *target); | |
c64abd1f | 564 | struct ppc_radix_page_info *kvm_get_radix_page_info(void); |
44f2e6c1 | 565 | int kvm_get_max_memslots(void); |
c82d9d43 PX |
566 | |
567 | /* Notify resamplefd for EOI of specific interrupts. */ | |
568 | void kvm_resample_fd_notify(int gsi); | |
569 | ||
92a5199b TL |
570 | /** |
571 | * kvm_cpu_check_are_resettable - return whether CPUs can be reset | |
572 | * | |
573 | * Returns: true: CPUs are resettable | |
574 | * false: CPUs are not resettable | |
575 | */ | |
576 | bool kvm_cpu_check_are_resettable(void); | |
577 | ||
578 | bool kvm_arch_cpu_check_are_resettable(void); | |
579 | ||
7786ae40 | 580 | bool kvm_dirty_ring_enabled(void); |
4a06a7cc HH |
581 | |
582 | uint32_t kvm_dirty_ring_size(void); | |
05330448 | 583 | #endif |