19c17d615SPaolo Bonzini /* 29c17d615SPaolo Bonzini * QEMU KVM support 39c17d615SPaolo Bonzini * 49c17d615SPaolo Bonzini * Copyright IBM, Corp. 2008 59c17d615SPaolo Bonzini * 69c17d615SPaolo Bonzini * Authors: 79c17d615SPaolo Bonzini * Anthony Liguori <aliguori@us.ibm.com> 89c17d615SPaolo Bonzini * 99c17d615SPaolo Bonzini * This work is licensed under the terms of the GNU GPL, version 2 or later. 109c17d615SPaolo Bonzini * See the COPYING file in the top-level directory. 119c17d615SPaolo Bonzini * 129c17d615SPaolo Bonzini */ 139c17d615SPaolo Bonzini 149c17d615SPaolo Bonzini #ifndef QEMU_KVM_H 159c17d615SPaolo Bonzini #define QEMU_KVM_H 169c17d615SPaolo Bonzini 179c17d615SPaolo Bonzini #include "qemu/queue.h" 182e5b09fdSMarkus Armbruster #include "hw/core/cpu.h" 194c663752SPaolo Bonzini #include "exec/memattrs.h" 20940e43aaSClaudio Fontana #include "qemu/accel.h" 21db1015e9SEduardo Habkost #include "qom/object.h" 229c17d615SPaolo Bonzini 23cbca3722SThomas Huth #ifdef NEED_CPU_H 249c17d615SPaolo Bonzini # ifdef CONFIG_KVM 259c17d615SPaolo Bonzini # include <linux/kvm.h> 26cbca3722SThomas Huth # define CONFIG_KVM_IS_POSSIBLE 279c17d615SPaolo Bonzini # endif 28cbca3722SThomas Huth #else 29cbca3722SThomas Huth # define CONFIG_KVM_IS_POSSIBLE 30cbca3722SThomas Huth #endif 31cbca3722SThomas Huth 32cbca3722SThomas Huth #ifdef CONFIG_KVM_IS_POSSIBLE 339c17d615SPaolo Bonzini 34d5286af5Sliguang extern bool kvm_allowed; 359c17d615SPaolo Bonzini extern bool kvm_kernel_irqchip; 3632c18a2dSMatt Gingell extern bool kvm_split_irqchip; 379c17d615SPaolo Bonzini extern bool kvm_async_interrupts_allowed; 38215e79c0SAlexander Graf extern bool kvm_halt_in_kernel_allowed; 3969e03ae6SNikolay Nikolaev extern bool kvm_eventfds_allowed; 409c17d615SPaolo Bonzini extern bool kvm_irqfds_allowed; 41f41389aeSEric Auger extern bool kvm_resamplefds_allowed; 429c17d615SPaolo Bonzini extern bool kvm_msi_via_irqfd_allowed; 439c17d615SPaolo Bonzini extern bool kvm_gsi_routing_allowed; 4476fe21deSAlexey Kardashevskiy extern bool kvm_gsi_direct_mapping; 45df9c8b75SJordan Justen extern bool kvm_readonly_mem_allowed; 4650bf31b9SPavel Fedin extern bool kvm_direct_msi_allowed; 4735108223SJason Wang extern bool kvm_ioeventfd_any_length_allowed; 48767a554aSPavel Fedin extern bool kvm_msi_use_devid; 4912bc5b4cSMaxim Levitsky extern bool kvm_has_guest_debug; 5012bc5b4cSMaxim Levitsky extern int kvm_sstep_flags; 519c17d615SPaolo Bonzini 529c17d615SPaolo Bonzini #define kvm_enabled() (kvm_allowed) 539c17d615SPaolo Bonzini /** 549c17d615SPaolo Bonzini * kvm_irqchip_in_kernel: 559c17d615SPaolo Bonzini * 5631c707fbSEduardo Habkost * Returns: true if an in-kernel irqchip was created. 579c17d615SPaolo Bonzini * What this actually means is architecture and machine model 5831c707fbSEduardo Habkost * specific: on PC, for instance, it means that the LAPIC 5931c707fbSEduardo Habkost * is in kernel. This function should never be used from generic 6031c707fbSEduardo Habkost * target-independent code: use one of the following functions or 6131c707fbSEduardo Habkost * some other specific check instead. 629c17d615SPaolo Bonzini */ 639c17d615SPaolo Bonzini #define kvm_irqchip_in_kernel() (kvm_kernel_irqchip) 649c17d615SPaolo Bonzini 659c17d615SPaolo Bonzini /** 6632c18a2dSMatt Gingell * kvm_irqchip_is_split: 6732c18a2dSMatt Gingell * 6831c707fbSEduardo Habkost * Returns: true if the irqchip implementation is split between 6931c707fbSEduardo Habkost * user and kernel space. The details are architecture and 7031c707fbSEduardo Habkost * machine specific. On PC, it means that the PIC, IOAPIC, and 7131c707fbSEduardo Habkost * PIT are in user space while the LAPIC is in the kernel. 7232c18a2dSMatt Gingell */ 7332c18a2dSMatt Gingell #define kvm_irqchip_is_split() (kvm_split_irqchip) 7432c18a2dSMatt Gingell 7532c18a2dSMatt Gingell /** 769c17d615SPaolo Bonzini * kvm_async_interrupts_enabled: 779c17d615SPaolo Bonzini * 789c17d615SPaolo Bonzini * Returns: true if we can deliver interrupts to KVM 799c17d615SPaolo Bonzini * asynchronously (ie by ioctl from any thread at any time) 809c17d615SPaolo Bonzini * rather than having to do interrupt delivery synchronously 819c17d615SPaolo Bonzini * (where the vcpu must be stopped at a suitable point first). 829c17d615SPaolo Bonzini */ 839c17d615SPaolo Bonzini #define kvm_async_interrupts_enabled() (kvm_async_interrupts_allowed) 849c17d615SPaolo Bonzini 859c17d615SPaolo Bonzini /** 86215e79c0SAlexander Graf * kvm_halt_in_kernel 87215e79c0SAlexander Graf * 88215e79c0SAlexander Graf * Returns: true if halted cpus should still get a KVM_RUN ioctl to run 89215e79c0SAlexander Graf * inside of kernel space. This only works if MP state is implemented. 90215e79c0SAlexander Graf */ 91215e79c0SAlexander Graf #define kvm_halt_in_kernel() (kvm_halt_in_kernel_allowed) 92215e79c0SAlexander Graf 93215e79c0SAlexander Graf /** 9469e03ae6SNikolay Nikolaev * kvm_eventfds_enabled: 9569e03ae6SNikolay Nikolaev * 9669e03ae6SNikolay Nikolaev * Returns: true if we can use eventfds to receive notifications 9769e03ae6SNikolay Nikolaev * from a KVM CPU (ie the kernel supports eventds and we are running 9869e03ae6SNikolay Nikolaev * with a configuration where it is meaningful to use them). 9969e03ae6SNikolay Nikolaev */ 10069e03ae6SNikolay Nikolaev #define kvm_eventfds_enabled() (kvm_eventfds_allowed) 10169e03ae6SNikolay Nikolaev 10269e03ae6SNikolay Nikolaev /** 1039c17d615SPaolo Bonzini * kvm_irqfds_enabled: 1049c17d615SPaolo Bonzini * 1059c17d615SPaolo Bonzini * Returns: true if we can use irqfds to inject interrupts into 1069c17d615SPaolo Bonzini * a KVM CPU (ie the kernel supports irqfds and we are running 1079c17d615SPaolo Bonzini * with a configuration where it is meaningful to use them). 1089c17d615SPaolo Bonzini */ 1099c17d615SPaolo Bonzini #define kvm_irqfds_enabled() (kvm_irqfds_allowed) 1109c17d615SPaolo Bonzini 1119c17d615SPaolo Bonzini /** 112f41389aeSEric Auger * kvm_resamplefds_enabled: 113f41389aeSEric Auger * 114f41389aeSEric Auger * Returns: true if we can use resamplefds to inject interrupts into 115f41389aeSEric Auger * a KVM CPU (ie the kernel supports resamplefds and we are running 116f41389aeSEric Auger * with a configuration where it is meaningful to use them). 117f41389aeSEric Auger */ 118f41389aeSEric Auger #define kvm_resamplefds_enabled() (kvm_resamplefds_allowed) 119f41389aeSEric Auger 120f41389aeSEric Auger /** 1219c17d615SPaolo Bonzini * kvm_msi_via_irqfd_enabled: 1229c17d615SPaolo Bonzini * 1239c17d615SPaolo Bonzini * Returns: true if we can route a PCI MSI (Message Signaled Interrupt) 1249c17d615SPaolo Bonzini * to a KVM CPU via an irqfd. This requires that the kernel supports 1259c17d615SPaolo Bonzini * this and that we're running in a configuration that permits it. 1269c17d615SPaolo Bonzini */ 1279c17d615SPaolo Bonzini #define kvm_msi_via_irqfd_enabled() (kvm_msi_via_irqfd_allowed) 1289c17d615SPaolo Bonzini 1299c17d615SPaolo Bonzini /** 1309c17d615SPaolo Bonzini * kvm_gsi_routing_enabled: 1319c17d615SPaolo Bonzini * 1329c17d615SPaolo Bonzini * Returns: true if GSI routing is enabled (ie the kernel supports 1339c17d615SPaolo Bonzini * it and we're running in a configuration that permits it). 1349c17d615SPaolo Bonzini */ 1359c17d615SPaolo Bonzini #define kvm_gsi_routing_enabled() (kvm_gsi_routing_allowed) 1369c17d615SPaolo Bonzini 137df9c8b75SJordan Justen /** 13876fe21deSAlexey Kardashevskiy * kvm_gsi_direct_mapping: 13976fe21deSAlexey Kardashevskiy * 14076fe21deSAlexey Kardashevskiy * Returns: true if GSI direct mapping is enabled. 14176fe21deSAlexey Kardashevskiy */ 14276fe21deSAlexey Kardashevskiy #define kvm_gsi_direct_mapping() (kvm_gsi_direct_mapping) 14376fe21deSAlexey Kardashevskiy 14476fe21deSAlexey Kardashevskiy /** 145df9c8b75SJordan Justen * kvm_readonly_mem_enabled: 146df9c8b75SJordan Justen * 147df9c8b75SJordan Justen * Returns: true if KVM readonly memory is enabled (ie the kernel 148df9c8b75SJordan Justen * supports it and we're running in a configuration that permits it). 149df9c8b75SJordan Justen */ 150df9c8b75SJordan Justen #define kvm_readonly_mem_enabled() (kvm_readonly_mem_allowed) 151df9c8b75SJordan Justen 15250bf31b9SPavel Fedin /** 15350bf31b9SPavel Fedin * kvm_direct_msi_enabled: 15450bf31b9SPavel Fedin * 15550bf31b9SPavel Fedin * Returns: true if KVM allows direct MSI injection. 15650bf31b9SPavel Fedin */ 15750bf31b9SPavel Fedin #define kvm_direct_msi_enabled() (kvm_direct_msi_allowed) 15850bf31b9SPavel Fedin 15935108223SJason Wang /** 16035108223SJason Wang * kvm_ioeventfd_any_length_enabled: 16135108223SJason Wang * Returns: true if KVM allows any length io eventfd. 16235108223SJason Wang */ 16335108223SJason Wang #define kvm_ioeventfd_any_length_enabled() (kvm_ioeventfd_any_length_allowed) 16435108223SJason Wang 165767a554aSPavel Fedin /** 166767a554aSPavel Fedin * kvm_msi_devid_required: 167767a554aSPavel Fedin * Returns: true if KVM requires a device id to be provided while 168767a554aSPavel Fedin * defining an MSI routing entry. 169767a554aSPavel Fedin */ 170767a554aSPavel Fedin #define kvm_msi_devid_required() (kvm_msi_use_devid) 171767a554aSPavel Fedin 17212bc5b4cSMaxim Levitsky /* 17312bc5b4cSMaxim Levitsky * Does KVM support guest debugging 17412bc5b4cSMaxim Levitsky */ 17512bc5b4cSMaxim Levitsky #define kvm_supports_guest_debug() (kvm_has_guest_debug) 17612bc5b4cSMaxim Levitsky 17712bc5b4cSMaxim Levitsky /* 17812bc5b4cSMaxim Levitsky * kvm_supported_sstep_flags 17912bc5b4cSMaxim Levitsky * Returns: SSTEP_* flags that KVM supports for guest debug 18012bc5b4cSMaxim Levitsky */ 18112bc5b4cSMaxim Levitsky #define kvm_get_supported_sstep_flags() (kvm_sstep_flags) 18212bc5b4cSMaxim Levitsky 1839c17d615SPaolo Bonzini #else 184cbca3722SThomas Huth 1859c17d615SPaolo Bonzini #define kvm_enabled() (0) 1869c17d615SPaolo Bonzini #define kvm_irqchip_in_kernel() (false) 18715eafc2eSPaolo Bonzini #define kvm_irqchip_is_split() (false) 1889c17d615SPaolo Bonzini #define kvm_async_interrupts_enabled() (false) 189215e79c0SAlexander Graf #define kvm_halt_in_kernel() (false) 19069e03ae6SNikolay Nikolaev #define kvm_eventfds_enabled() (false) 1919c17d615SPaolo Bonzini #define kvm_irqfds_enabled() (false) 192879904e8SEric Auger #define kvm_resamplefds_enabled() (false) 1939c17d615SPaolo Bonzini #define kvm_msi_via_irqfd_enabled() (false) 1949c17d615SPaolo Bonzini #define kvm_gsi_routing_allowed() (false) 19576fe21deSAlexey Kardashevskiy #define kvm_gsi_direct_mapping() (false) 196df9c8b75SJordan Justen #define kvm_readonly_mem_enabled() (false) 19750bf31b9SPavel Fedin #define kvm_direct_msi_enabled() (false) 19835108223SJason Wang #define kvm_ioeventfd_any_length_enabled() (false) 199767a554aSPavel Fedin #define kvm_msi_devid_required() (false) 20012bc5b4cSMaxim Levitsky #define kvm_supports_guest_debug() (false) 20112bc5b4cSMaxim Levitsky #define kvm_get_supported_sstep_flags() (0) 202cbca3722SThomas Huth 203cbca3722SThomas Huth #endif /* CONFIG_KVM_IS_POSSIBLE */ 2049c17d615SPaolo Bonzini 2059c17d615SPaolo Bonzini struct kvm_run; 2069c17d615SPaolo Bonzini struct kvm_lapic_state; 2079e03a040SFrank Blaschka struct kvm_irq_routing_entry; 2089c17d615SPaolo Bonzini 2099c17d615SPaolo Bonzini typedef struct KVMCapabilityInfo { 2109c17d615SPaolo Bonzini const char *name; 2119c17d615SPaolo Bonzini int value; 2129c17d615SPaolo Bonzini } KVMCapabilityInfo; 2139c17d615SPaolo Bonzini 2149c17d615SPaolo Bonzini #define KVM_CAP_INFO(CAP) { "KVM_CAP_" stringify(CAP), KVM_CAP_##CAP } 2159c17d615SPaolo Bonzini #define KVM_CAP_LAST_INFO { NULL, 0 } 2169c17d615SPaolo Bonzini 2179c17d615SPaolo Bonzini struct KVMState; 21897e622deSEduardo Habkost 21997e622deSEduardo Habkost #define TYPE_KVM_ACCEL ACCEL_CLASS_NAME("kvm") 2209c17d615SPaolo Bonzini typedef struct KVMState KVMState; 2218110fa1dSEduardo Habkost DECLARE_INSTANCE_CHECKER(KVMState, KVM_STATE, 2228110fa1dSEduardo Habkost TYPE_KVM_ACCEL) 22397e622deSEduardo Habkost 2249c17d615SPaolo Bonzini extern KVMState *kvm_state; 2253607715aSDavid Gibson typedef struct Notifier Notifier; 2269c17d615SPaolo Bonzini 227*95686908SLongpeng(Mike) typedef struct KVMRouteChange { 228*95686908SLongpeng(Mike) KVMState *s; 229*95686908SLongpeng(Mike) int changes; 230*95686908SLongpeng(Mike) } KVMRouteChange; 231*95686908SLongpeng(Mike) 2329c17d615SPaolo Bonzini /* external API */ 2339c17d615SPaolo Bonzini 234b8865591SIgor Mammedov bool kvm_has_free_slot(MachineState *ms); 23562dd4edaSGreg Kurz bool kvm_has_sync_mmu(void); 2369c17d615SPaolo Bonzini int kvm_has_vcpu_events(void); 2379c17d615SPaolo Bonzini int kvm_has_robust_singlestep(void); 2389c17d615SPaolo Bonzini int kvm_has_debugregs(void); 239ebbfef2fSLiran Alon int kvm_max_nested_state_length(void); 2409c17d615SPaolo Bonzini int kvm_has_pit_state2(void); 2419c17d615SPaolo Bonzini int kvm_has_many_ioeventfds(void); 2429c17d615SPaolo Bonzini int kvm_has_gsi_routing(void); 2439c17d615SPaolo Bonzini int kvm_has_intx_set_mask(void); 2449c17d615SPaolo Bonzini 2455d721b78SAlexander Graf /** 2465d721b78SAlexander Graf * kvm_arm_supports_user_irq 2475d721b78SAlexander Graf * 2485d721b78SAlexander Graf * Not all KVM implementations support notifications for kernel generated 2495d721b78SAlexander Graf * interrupt events to user space. This function indicates whether the current 2505d721b78SAlexander Graf * KVM implementation does support them. 2515d721b78SAlexander Graf * 2525d721b78SAlexander Graf * Returns: true if KVM supports using kernel generated IRQs from user space 2535d721b78SAlexander Graf */ 2545d721b78SAlexander Graf bool kvm_arm_supports_user_irq(void); 2555d721b78SAlexander Graf 256b20e3780SBrijesh Singh 25782bd4ca3SPhilippe Mathieu-Daudé int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr); 25882bd4ca3SPhilippe Mathieu-Daudé int kvm_on_sigbus(int code, void *addr); 25982bd4ca3SPhilippe Mathieu-Daudé 260504134d2SAndreas Färber #ifdef NEED_CPU_H 26133c11879SPaolo Bonzini #include "cpu.h" 2629c17d615SPaolo Bonzini 263c4cfef5eSIgor Mammedov void kvm_flush_coalesced_mmio_buffer(void); 264c4cfef5eSIgor Mammedov 26562278814SAndreas Färber int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr, 2669c17d615SPaolo Bonzini target_ulong len, int type); 26762278814SAndreas Färber int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr, 2689c17d615SPaolo Bonzini target_ulong len, int type); 2691d5791f4SAndreas Färber void kvm_remove_all_breakpoints(CPUState *cpu); 27038e478ecSStefan Weil int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap); 2719c17d615SPaolo Bonzini 2729c17d615SPaolo Bonzini /* internal API */ 2739c17d615SPaolo Bonzini 2749c17d615SPaolo Bonzini int kvm_ioctl(KVMState *s, int type, ...); 2759c17d615SPaolo Bonzini 2769c17d615SPaolo Bonzini int kvm_vm_ioctl(KVMState *s, int type, ...); 2779c17d615SPaolo Bonzini 278501a7ce7SAndreas Färber int kvm_vcpu_ioctl(CPUState *cpu, int type, ...); 2799c17d615SPaolo Bonzini 2800a6a7ccaSChristoffer Dall /** 2810a6a7ccaSChristoffer Dall * kvm_device_ioctl - call an ioctl on a kvm device 2820a6a7ccaSChristoffer Dall * @fd: The KVM device file descriptor as returned from KVM_CREATE_DEVICE 2830a6a7ccaSChristoffer Dall * @type: The device-ctrl ioctl number 2840a6a7ccaSChristoffer Dall * 2850a6a7ccaSChristoffer Dall * Returns: -errno on error, nonnegative on success 2860a6a7ccaSChristoffer Dall */ 2870a6a7ccaSChristoffer Dall int kvm_device_ioctl(int fd, int type, ...); 2880a6a7ccaSChristoffer Dall 2890a6a7ccaSChristoffer Dall /** 290d0a073a1SDominik Dingel * kvm_vm_check_attr - check for existence of a specific vm attribute 291d0a073a1SDominik Dingel * @s: The KVMState pointer 292d0a073a1SDominik Dingel * @group: the group 293d0a073a1SDominik Dingel * @attr: the attribute of that group to query for 294d0a073a1SDominik Dingel * 295d0a073a1SDominik Dingel * Returns: 1 if the attribute exists 296d0a073a1SDominik Dingel * 0 if the attribute either does not exist or if the vm device 297d0a073a1SDominik Dingel * interface is unavailable 298d0a073a1SDominik Dingel */ 299d0a073a1SDominik Dingel int kvm_vm_check_attr(KVMState *s, uint32_t group, uint64_t attr); 300d0a073a1SDominik Dingel 301d0a073a1SDominik Dingel /** 3024b3cfe72SPavel Fedin * kvm_device_check_attr - check for existence of a specific device attribute 3034b3cfe72SPavel Fedin * @fd: The device file descriptor 3044b3cfe72SPavel Fedin * @group: the group 3054b3cfe72SPavel Fedin * @attr: the attribute of that group to query for 3064b3cfe72SPavel Fedin * 3074b3cfe72SPavel Fedin * Returns: 1 if the attribute exists 3084b3cfe72SPavel Fedin * 0 if the attribute either does not exist or if the vm device 3094b3cfe72SPavel Fedin * interface is unavailable 3104b3cfe72SPavel Fedin */ 3114b3cfe72SPavel Fedin int kvm_device_check_attr(int fd, uint32_t group, uint64_t attr); 3124b3cfe72SPavel Fedin 3134b3cfe72SPavel Fedin /** 31484b6ea05SGreg Kurz * kvm_device_access - set or get value of a specific device attribute 3154b3cfe72SPavel Fedin * @fd: The device file descriptor 3164b3cfe72SPavel Fedin * @group: the group 3174b3cfe72SPavel Fedin * @attr: the attribute of that group to set or get 3184b3cfe72SPavel Fedin * @val: pointer to a storage area for the value 3194b3cfe72SPavel Fedin * @write: true for set and false for get operation 320556969e9SEric Auger * @errp: error object handle 3214b3cfe72SPavel Fedin * 322556969e9SEric Auger * Returns: 0 on success 323556969e9SEric Auger * < 0 on error 324556969e9SEric Auger * Use kvm_device_check_attr() in order to check for the availability 325556969e9SEric Auger * of optional attributes. 3264b3cfe72SPavel Fedin */ 327556969e9SEric Auger int kvm_device_access(int fd, int group, uint64_t attr, 328556969e9SEric Auger void *val, bool write, Error **errp); 3294b3cfe72SPavel Fedin 3304b3cfe72SPavel Fedin /** 3310a6a7ccaSChristoffer Dall * kvm_create_device - create a KVM device for the device control API 3320a6a7ccaSChristoffer Dall * @KVMState: The KVMState pointer 3330a6a7ccaSChristoffer Dall * @type: The KVM device type (see Documentation/virtual/kvm/devices in the 3340a6a7ccaSChristoffer Dall * kernel source) 3350a6a7ccaSChristoffer Dall * @test: If true, only test if device can be created, but don't actually 3360a6a7ccaSChristoffer Dall * create the device. 3370a6a7ccaSChristoffer Dall * 3380a6a7ccaSChristoffer Dall * Returns: -errno on error, nonnegative on success: @test ? 0 : device fd; 3390a6a7ccaSChristoffer Dall */ 3400a6a7ccaSChristoffer Dall int kvm_create_device(KVMState *s, uint64_t type, bool test); 3410a6a7ccaSChristoffer Dall 34229039acfSPeter Xu /** 34329039acfSPeter Xu * kvm_device_supported - probe whether KVM supports specific device 34429039acfSPeter Xu * 34529039acfSPeter Xu * @vmfd: The fd handler for VM 34629039acfSPeter Xu * @type: type of device 34729039acfSPeter Xu * 34829039acfSPeter Xu * @return: true if supported, otherwise false. 34929039acfSPeter Xu */ 35029039acfSPeter Xu bool kvm_device_supported(int vmfd, uint64_t type); 3510a6a7ccaSChristoffer Dall 3529c17d615SPaolo Bonzini /* Arch specific hooks */ 3539c17d615SPaolo Bonzini 3549c17d615SPaolo Bonzini extern const KVMCapabilityInfo kvm_arch_required_capabilities[]; 3559c17d615SPaolo Bonzini 356501a7ce7SAndreas Färber void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run); 3574c663752SPaolo Bonzini MemTxAttrs kvm_arch_post_run(CPUState *cpu, struct kvm_run *run); 3589c17d615SPaolo Bonzini 359501a7ce7SAndreas Färber int kvm_arch_handle_exit(CPUState *cpu, struct kvm_run *run); 3609c17d615SPaolo Bonzini 361501a7ce7SAndreas Färber int kvm_arch_process_async_events(CPUState *cpu); 3629c17d615SPaolo Bonzini 363501a7ce7SAndreas Färber int kvm_arch_get_registers(CPUState *cpu); 3649c17d615SPaolo Bonzini 3659c17d615SPaolo Bonzini /* state subset only touched by the VCPU itself during runtime */ 3669c17d615SPaolo Bonzini #define KVM_PUT_RUNTIME_STATE 1 3679c17d615SPaolo Bonzini /* state subset modified during VCPU reset */ 3689c17d615SPaolo Bonzini #define KVM_PUT_RESET_STATE 2 3699c17d615SPaolo Bonzini /* full state set, modified during initialization or on vmload */ 3709c17d615SPaolo Bonzini #define KVM_PUT_FULL_STATE 3 3719c17d615SPaolo Bonzini 372501a7ce7SAndreas Färber int kvm_arch_put_registers(CPUState *cpu, int level); 3739c17d615SPaolo Bonzini 374b16565b3SMarcel Apfelbaum int kvm_arch_init(MachineState *ms, KVMState *s); 3759c17d615SPaolo Bonzini 376501a7ce7SAndreas Färber int kvm_arch_init_vcpu(CPUState *cpu); 377b1115c99SLiran Alon int kvm_arch_destroy_vcpu(CPUState *cpu); 3789c17d615SPaolo Bonzini 37941264b38SGreg Kurz bool kvm_vcpu_id_is_valid(int vcpu_id); 38041264b38SGreg Kurz 381b164e48eSEduardo Habkost /* Returns VCPU ID to be used on KVM_CREATE_VCPU ioctl() */ 382b164e48eSEduardo Habkost unsigned long kvm_arch_vcpu_id(CPUState *cpu); 383b164e48eSEduardo Habkost 384e24fd076SDongjiu Geng #ifdef KVM_HAVE_MCE_INJECTION 3852ae41db2SPaolo Bonzini void kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr); 3862ae41db2SPaolo Bonzini #endif 3879c17d615SPaolo Bonzini 3889c17d615SPaolo Bonzini void kvm_arch_init_irq_routing(KVMState *s); 3899c17d615SPaolo Bonzini 3909e03a040SFrank Blaschka int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, 391dc9f06caSPavel Fedin uint64_t address, uint32_t data, PCIDevice *dev); 3929e03a040SFrank Blaschka 39338d87493SPeter Xu /* Notify arch about newly added MSI routes */ 39438d87493SPeter Xu int kvm_arch_add_msi_route_post(struct kvm_irq_routing_entry *route, 39538d87493SPeter Xu int vector, PCIDevice *dev); 39638d87493SPeter Xu /* Notify arch about released MSI routes */ 39738d87493SPeter Xu int kvm_arch_release_virq_post(int virq); 39838d87493SPeter Xu 3991850b6b7SEric Auger int kvm_arch_msi_data_to_gsi(uint32_t data); 4001850b6b7SEric Auger 4019c17d615SPaolo Bonzini int kvm_set_irq(KVMState *s, int irq, int level); 4029c17d615SPaolo Bonzini int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg); 4039c17d615SPaolo Bonzini 4049c17d615SPaolo Bonzini void kvm_irqchip_add_irq_route(KVMState *s, int gsi, int irqchip, int pin); 4059c17d615SPaolo Bonzini 4063607715aSDavid Gibson void kvm_irqchip_add_change_notifier(Notifier *n); 4073607715aSDavid Gibson void kvm_irqchip_remove_change_notifier(Notifier *n); 4083607715aSDavid Gibson void kvm_irqchip_change_notify(void); 4093607715aSDavid Gibson 4109c17d615SPaolo Bonzini void kvm_get_apic_state(DeviceState *d, struct kvm_lapic_state *kapic); 4119c17d615SPaolo Bonzini 4129c17d615SPaolo Bonzini struct kvm_guest_debug; 4139c17d615SPaolo Bonzini struct kvm_debug_exit_arch; 4149c17d615SPaolo Bonzini 4159c17d615SPaolo Bonzini struct kvm_sw_breakpoint { 4169c17d615SPaolo Bonzini target_ulong pc; 4179c17d615SPaolo Bonzini target_ulong saved_insn; 4189c17d615SPaolo Bonzini int use_count; 4199c17d615SPaolo Bonzini QTAILQ_ENTRY(kvm_sw_breakpoint) entry; 4209c17d615SPaolo Bonzini }; 4219c17d615SPaolo Bonzini 422501a7ce7SAndreas Färber struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *cpu, 4239c17d615SPaolo Bonzini target_ulong pc); 4249c17d615SPaolo Bonzini 425501a7ce7SAndreas Färber int kvm_sw_breakpoints_active(CPUState *cpu); 4269c17d615SPaolo Bonzini 42780b7cd73SAndreas Färber int kvm_arch_insert_sw_breakpoint(CPUState *cpu, 4289c17d615SPaolo Bonzini struct kvm_sw_breakpoint *bp); 42980b7cd73SAndreas Färber int kvm_arch_remove_sw_breakpoint(CPUState *cpu, 4309c17d615SPaolo Bonzini struct kvm_sw_breakpoint *bp); 4319c17d615SPaolo Bonzini int kvm_arch_insert_hw_breakpoint(target_ulong addr, 4329c17d615SPaolo Bonzini target_ulong len, int type); 4339c17d615SPaolo Bonzini int kvm_arch_remove_hw_breakpoint(target_ulong addr, 4349c17d615SPaolo Bonzini target_ulong len, int type); 4359c17d615SPaolo Bonzini void kvm_arch_remove_all_hw_breakpoints(void); 4369c17d615SPaolo Bonzini 437501a7ce7SAndreas Färber void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg); 4389c17d615SPaolo Bonzini 439501a7ce7SAndreas Färber bool kvm_arch_stop_on_emulation_error(CPUState *cpu); 4409c17d615SPaolo Bonzini 4419c17d615SPaolo Bonzini int kvm_check_extension(KVMState *s, unsigned int extension); 4429c17d615SPaolo Bonzini 4437d0a07faSAlexander Graf int kvm_vm_check_extension(KVMState *s, unsigned int extension); 4447d0a07faSAlexander Graf 44540f1ee27SCornelia Huck #define kvm_vm_enable_cap(s, capability, cap_flags, ...) \ 44640f1ee27SCornelia Huck ({ \ 44740f1ee27SCornelia Huck struct kvm_enable_cap cap = { \ 44840f1ee27SCornelia Huck .cap = capability, \ 44940f1ee27SCornelia Huck .flags = cap_flags, \ 45040f1ee27SCornelia Huck }; \ 45140f1ee27SCornelia Huck uint64_t args_tmp[] = { __VA_ARGS__ }; \ 4521b7ac7caSGreg Kurz size_t n = MIN(ARRAY_SIZE(args_tmp), ARRAY_SIZE(cap.args)); \ 4531b7ac7caSGreg Kurz memcpy(cap.args, args_tmp, n * sizeof(cap.args[0])); \ 45440f1ee27SCornelia Huck kvm_vm_ioctl(s, KVM_ENABLE_CAP, &cap); \ 45540f1ee27SCornelia Huck }) 45640f1ee27SCornelia Huck 45740f1ee27SCornelia Huck #define kvm_vcpu_enable_cap(cpu, capability, cap_flags, ...) \ 45840f1ee27SCornelia Huck ({ \ 45940f1ee27SCornelia Huck struct kvm_enable_cap cap = { \ 46040f1ee27SCornelia Huck .cap = capability, \ 46140f1ee27SCornelia Huck .flags = cap_flags, \ 46240f1ee27SCornelia Huck }; \ 46340f1ee27SCornelia Huck uint64_t args_tmp[] = { __VA_ARGS__ }; \ 4641b7ac7caSGreg Kurz size_t n = MIN(ARRAY_SIZE(args_tmp), ARRAY_SIZE(cap.args)); \ 4651b7ac7caSGreg Kurz memcpy(cap.args, args_tmp, n * sizeof(cap.args[0])); \ 46640f1ee27SCornelia Huck kvm_vcpu_ioctl(cpu, KVM_ENABLE_CAP, &cap); \ 46740f1ee27SCornelia Huck }) 46840f1ee27SCornelia Huck 4699c17d615SPaolo Bonzini uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function, 4709c17d615SPaolo Bonzini uint32_t index, int reg); 471ede146c2SPaolo Bonzini uint64_t kvm_arch_get_supported_msr_feature(KVMState *s, uint32_t index); 472f57bceb6SRobert Hoo 47397577fd4SJames Hogan 474aed6efb9SJames Hogan void kvm_set_sigmask_len(KVMState *s, unsigned int sigmask_len); 475aed6efb9SJames Hogan 47697577fd4SJames Hogan #if !defined(CONFIG_USER_ONLY) 47797577fd4SJames Hogan int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr, 47897577fd4SJames Hogan hwaddr *phys_addr); 47997577fd4SJames Hogan #endif 48097577fd4SJames Hogan 48197577fd4SJames Hogan #endif /* NEED_CPU_H */ 48297577fd4SJames Hogan 483dd1750d7SAndreas Färber void kvm_cpu_synchronize_state(CPUState *cpu); 4849c17d615SPaolo Bonzini 48518268b60SPaolo Bonzini void kvm_init_cpu_signals(CPUState *cpu); 48618268b60SPaolo Bonzini 487d1f6af6aSPeter Xu /** 488d1f6af6aSPeter Xu * kvm_irqchip_add_msi_route - Add MSI route for specific vector 489d1f6af6aSPeter Xu * @s: KVM state 490d1f6af6aSPeter Xu * @vector: which vector to add. This can be either MSI/MSIX 491d1f6af6aSPeter Xu * vector. The function will automatically detect whether 492d1f6af6aSPeter Xu * MSI/MSIX is enabled, and fetch corresponding MSI 493d1f6af6aSPeter Xu * message. 494d1f6af6aSPeter Xu * @dev: Owner PCI device to add the route. If @dev is specified 495d1f6af6aSPeter Xu * as @NULL, an empty MSI message will be inited. 496d1f6af6aSPeter Xu * @return: virq (>=0) when success, errno (<0) when failed. 497d1f6af6aSPeter Xu */ 498d1f6af6aSPeter Xu int kvm_irqchip_add_msi_route(KVMState *s, int vector, PCIDevice *dev); 499dc9f06caSPavel Fedin int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg, 500dc9f06caSPavel Fedin PCIDevice *dev); 5013f1fea0fSPeter Xu void kvm_irqchip_commit_routes(KVMState *s); 502*95686908SLongpeng(Mike) 503*95686908SLongpeng(Mike) static inline KVMRouteChange kvm_irqchip_begin_route_changes(KVMState *s) 504*95686908SLongpeng(Mike) { 505*95686908SLongpeng(Mike) return (KVMRouteChange) { .s = s, .changes = 0 }; 506*95686908SLongpeng(Mike) } 507*95686908SLongpeng(Mike) 508*95686908SLongpeng(Mike) static inline void kvm_irqchip_commit_route_changes(KVMRouteChange *c) 509*95686908SLongpeng(Mike) { 510*95686908SLongpeng(Mike) if (c->changes) { 511*95686908SLongpeng(Mike) kvm_irqchip_commit_routes(c->s); 512*95686908SLongpeng(Mike) c->changes = 0; 513*95686908SLongpeng(Mike) } 514*95686908SLongpeng(Mike) } 515*95686908SLongpeng(Mike) 5169c17d615SPaolo Bonzini void kvm_irqchip_release_virq(KVMState *s, int virq); 5179c17d615SPaolo Bonzini 518d426d9fbSCornelia Huck int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter); 519977a8d9cSAndrey Smetanin int kvm_irqchip_add_hv_sint_route(KVMState *s, uint32_t vcpu, uint32_t sint); 520d426d9fbSCornelia Huck 5211c9b71a7SEric Auger int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n, 522ca916d37SVincenzo Maffione EventNotifier *rn, int virq); 5231c9b71a7SEric Auger int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n, 5241c9b71a7SEric Auger int virq); 525197e3524SEric Auger int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n, 526197e3524SEric Auger EventNotifier *rn, qemu_irq irq); 527197e3524SEric Auger int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, 528197e3524SEric Auger qemu_irq irq); 529197e3524SEric Auger void kvm_irqchip_set_qemuirq_gsi(KVMState *s, qemu_irq irq, int gsi); 5309c17d615SPaolo Bonzini void kvm_pc_setup_irq_routing(bool pci_enabled); 5317b774593SAlexander Graf void kvm_init_irq_routing(KVMState *s); 532d6032e06SChristoffer Dall 5334376c40dSPaolo Bonzini bool kvm_kernel_irqchip_allowed(void); 5344376c40dSPaolo Bonzini bool kvm_kernel_irqchip_required(void); 5354376c40dSPaolo Bonzini bool kvm_kernel_irqchip_split(void); 5364376c40dSPaolo Bonzini 537d6032e06SChristoffer Dall /** 538d6032e06SChristoffer Dall * kvm_arch_irqchip_create: 539d6032e06SChristoffer Dall * @KVMState: The KVMState pointer 540d6032e06SChristoffer Dall * 541d6032e06SChristoffer Dall * Allow architectures to create an in-kernel irq chip themselves. 542d6032e06SChristoffer Dall * 543d6032e06SChristoffer Dall * Returns: < 0: error 544d6032e06SChristoffer Dall * 0: irq chip was not created 545d6032e06SChristoffer Dall * > 0: irq chip was created 546d6032e06SChristoffer Dall */ 5474376c40dSPaolo Bonzini int kvm_arch_irqchip_create(KVMState *s); 548ada4135fSCornelia Huck 549ada4135fSCornelia Huck /** 550ada4135fSCornelia Huck * kvm_set_one_reg - set a register value in KVM via KVM_SET_ONE_REG ioctl 551ada4135fSCornelia Huck * @id: The register ID 552ada4135fSCornelia Huck * @source: The pointer to the value to be set. It must point to a variable 553ada4135fSCornelia Huck * of the correct type/size for the register being accessed. 554ada4135fSCornelia Huck * 555ada4135fSCornelia Huck * Returns: 0 on success, or a negative errno on failure. 556ada4135fSCornelia Huck */ 557ada4135fSCornelia Huck int kvm_set_one_reg(CPUState *cs, uint64_t id, void *source); 558ada4135fSCornelia Huck 559ada4135fSCornelia Huck /** 560ada4135fSCornelia Huck * kvm_get_one_reg - get a register value from KVM via KVM_GET_ONE_REG ioctl 561ada4135fSCornelia Huck * @id: The register ID 562ada4135fSCornelia Huck * @target: The pointer where the value is to be stored. It must point to a 563ada4135fSCornelia Huck * variable of the correct type/size for the register being accessed. 564ada4135fSCornelia Huck * 565ada4135fSCornelia Huck * Returns: 0 on success, or a negative errno on failure. 566ada4135fSCornelia Huck */ 567ada4135fSCornelia Huck int kvm_get_one_reg(CPUState *cs, uint64_t id, void *target); 568c64abd1fSSam Bobroff struct ppc_radix_page_info *kvm_get_radix_page_info(void); 56944f2e6c1SBharata B Rao int kvm_get_max_memslots(void); 570c82d9d43SPeter Xu 571c82d9d43SPeter Xu /* Notify resamplefd for EOI of specific interrupts. */ 572c82d9d43SPeter Xu void kvm_resample_fd_notify(int gsi); 573c82d9d43SPeter Xu 57492a5199bSTom Lendacky /** 57592a5199bSTom Lendacky * kvm_cpu_check_are_resettable - return whether CPUs can be reset 57692a5199bSTom Lendacky * 57792a5199bSTom Lendacky * Returns: true: CPUs are resettable 57892a5199bSTom Lendacky * false: CPUs are not resettable 57992a5199bSTom Lendacky */ 58092a5199bSTom Lendacky bool kvm_cpu_check_are_resettable(void); 58192a5199bSTom Lendacky 58292a5199bSTom Lendacky bool kvm_arch_cpu_check_are_resettable(void); 58392a5199bSTom Lendacky 5847786ae40SHyman Huang(黄勇) bool kvm_dirty_ring_enabled(void); 5859c17d615SPaolo Bonzini #endif 586