diff options
Diffstat (limited to 'include/linux/kvm_host.h')
-rw-r--r-- | include/linux/kvm_host.h | 114 |
1 files changed, 71 insertions, 43 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 3060bdc..4af5603 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -42,6 +42,7 @@ #define KVM_USERSPACE_IRQ_SOURCE_ID 0 +struct kvm; struct kvm_vcpu; extern struct kmem_cache *kvm_vcpu_cache; @@ -59,10 +60,18 @@ struct kvm_io_bus { void kvm_io_bus_init(struct kvm_io_bus *bus); void kvm_io_bus_destroy(struct kvm_io_bus *bus); -struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, - gpa_t addr, int len, int is_write); -void kvm_io_bus_register_dev(struct kvm_io_bus *bus, - struct kvm_io_device *dev); +int kvm_io_bus_write(struct kvm_io_bus *bus, gpa_t addr, int len, + const void *val); +int kvm_io_bus_read(struct kvm_io_bus *bus, gpa_t addr, int len, + void *val); +int __kvm_io_bus_register_dev(struct kvm_io_bus *bus, + struct kvm_io_device *dev); +int kvm_io_bus_register_dev(struct kvm *kvm, struct kvm_io_bus *bus, + struct kvm_io_device *dev); +void __kvm_io_bus_unregister_dev(struct kvm_io_bus *bus, + struct kvm_io_device *dev); +void kvm_io_bus_unregister_dev(struct kvm *kvm, struct kvm_io_bus *bus, + struct kvm_io_device *dev); struct kvm_vcpu { struct kvm *kvm; @@ -103,7 +112,7 @@ struct kvm_memory_slot { struct { unsigned long rmap_pde; int write_count; - } *lpage_info; + } *lpage_info[KVM_NR_PAGE_SIZES - 1]; unsigned long userspace_addr; int user_alloc; }; @@ -124,7 +133,6 @@ struct kvm_kernel_irq_routing_entry { }; struct kvm { - struct mutex lock; /* protects the vcpus array and APIC accesses */ spinlock_t mmu_lock; spinlock_t requests_lock; struct rw_semaphore slots_lock; @@ -132,10 +140,23 @@ struct kvm { int nmemslots; struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS]; +#ifdef CONFIG_KVM_APIC_ARCHITECTURE + u32 bsp_vcpu_id; + struct kvm_vcpu *bsp_vcpu; +#endif struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; + atomic_t online_vcpus; struct list_head vm_list; + struct mutex lock; struct kvm_io_bus mmio_bus; struct kvm_io_bus pio_bus; +#ifdef CONFIG_HAVE_KVM_EVENTFD + struct { + spinlock_t lock; + struct list_head items; + } irqfds; + struct list_head ioeventfds; +#endif struct kvm_vm_stat stat; struct kvm_arch arch; atomic_t users_count; @@ -144,6 +165,7 @@ struct kvm { struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; #endif + struct mutex irq_lock; #ifdef CONFIG_HAVE_KVM_IRQCHIP struct list_head irq_routing; /* of kvm_kernel_irq_routing_entry */ struct hlist_head mask_notifier_list; @@ -167,6 +189,17 @@ struct kvm { #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt) #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt) +static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i) +{ + smp_rmb(); + return kvm->vcpus[i]; +} + +#define kvm_for_each_vcpu(idx, vcpup, kvm) \ + for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \ + idx < atomic_read(&kvm->online_vcpus) && vcpup; \ + vcpup = kvm_get_vcpu(kvm, ++idx)) + int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); @@ -201,6 +234,7 @@ int kvm_arch_set_memory_region(struct kvm *kvm, struct kvm_userspace_memory_region *mem, struct kvm_memory_slot old, int user_alloc); +void kvm_disable_largepages(void); void kvm_arch_flush_shadow(struct kvm *kvm); gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn); struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); @@ -243,8 +277,6 @@ long kvm_arch_dev_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg); long kvm_arch_vcpu_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg); -void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); -void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); int kvm_dev_ioctl_check_extension(long ext); @@ -300,7 +332,6 @@ int kvm_arch_hardware_setup(void); void kvm_arch_hardware_unsetup(void); void kvm_arch_check_processor_compat(void *rtn); int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); -int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu); void kvm_free_physmem(struct kvm *kvm); @@ -309,8 +340,6 @@ void kvm_arch_destroy_vm(struct kvm *kvm); void kvm_free_all_assigned_devices(struct kvm *kvm); void kvm_arch_sync_events(struct kvm *kvm); -int kvm_cpu_get_interrupt(struct kvm_vcpu *v); -int kvm_cpu_has_interrupt(struct kvm_vcpu *v); int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); void kvm_vcpu_kick(struct kvm_vcpu *vcpu); @@ -366,7 +395,8 @@ int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level); void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); void kvm_register_irq_ack_notifier(struct kvm *kvm, struct kvm_irq_ack_notifier *kian); -void kvm_unregister_irq_ack_notifier(struct kvm_irq_ack_notifier *kian); +void kvm_unregister_irq_ack_notifier(struct kvm *kvm, + struct kvm_irq_ack_notifier *kian); int kvm_request_irq_source_id(struct kvm *kvm); void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); @@ -459,37 +489,6 @@ struct kvm_stats_debugfs_item { extern struct kvm_stats_debugfs_item debugfs_entries[]; extern struct dentry *kvm_debugfs_dir; -#define KVMTRACE_5D(evt, vcpu, d1, d2, d3, d4, d5, name) \ - trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ - vcpu, 5, d1, d2, d3, d4, d5) -#define KVMTRACE_4D(evt, vcpu, d1, d2, d3, d4, name) \ - trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ - vcpu, 4, d1, d2, d3, d4, 0) -#define KVMTRACE_3D(evt, vcpu, d1, d2, d3, name) \ - trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ - vcpu, 3, d1, d2, d3, 0, 0) -#define KVMTRACE_2D(evt, vcpu, d1, d2, name) \ - trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ - vcpu, 2, d1, d2, 0, 0, 0) -#define KVMTRACE_1D(evt, vcpu, d1, name) \ - trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ - vcpu, 1, d1, 0, 0, 0, 0) -#define KVMTRACE_0D(evt, vcpu, name) \ - trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ - vcpu, 0, 0, 0, 0, 0, 0) - -#ifdef CONFIG_KVM_TRACE -int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg); -void kvm_trace_cleanup(void); -#else -static inline -int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg) -{ - return -EINVAL; -} -#define kvm_trace_cleanup() ((void)0) -#endif - #ifdef KVM_ARCH_WANT_MMU_NOTIFIER static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq) { @@ -525,4 +524,33 @@ static inline void kvm_free_irq_routing(struct kvm *kvm) {} #endif +#ifdef CONFIG_HAVE_KVM_EVENTFD + +void kvm_eventfd_init(struct kvm *kvm); +int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags); +void kvm_irqfd_release(struct kvm *kvm); +int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); + +#else + +static inline void kvm_eventfd_init(struct kvm *kvm) {} +static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) +{ + return -EINVAL; +} + +static inline void kvm_irqfd_release(struct kvm *kvm) {} +static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) +{ + return -ENOSYS; +} + +#endif /* CONFIG_HAVE_KVM_EVENTFD */ + +#ifdef CONFIG_KVM_APIC_ARCHITECTURE +static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu) +{ + return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id; +} +#endif #endif |