diff options
Diffstat (limited to 'include/linux/kvm_host.h')
| -rw-r--r-- | include/linux/kvm_host.h | 59 |
1 files changed, 48 insertions, 11 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 72cbf08d45f..96c158a37d3 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -35,6 +35,20 @@ #endif /* + * If we support unaligned MMIO, at most one fragment will be split into two: + */ +#ifdef KVM_UNALIGNED_MMIO +# define KVM_EXTRA_MMIO_FRAGMENTS 1 +#else +# define KVM_EXTRA_MMIO_FRAGMENTS 0 +#endif + +#define KVM_USER_MMIO_SIZE 8 + +#define KVM_MAX_MMIO_FRAGMENTS \ + (KVM_MMIO_SIZE / KVM_USER_MMIO_SIZE + KVM_EXTRA_MMIO_FRAGMENTS) + +/* * vcpu->requests bit members */ #define KVM_REQ_TLB_FLUSH 0 @@ -68,10 +82,11 @@ struct kvm_io_range { struct kvm_io_device *dev; }; +#define NR_IOBUS_DEVS 1000 + struct kvm_io_bus { int dev_count; -#define NR_IOBUS_DEVS 300 - struct kvm_io_range range[NR_IOBUS_DEVS]; + struct kvm_io_range range[]; }; enum kvm_bus { @@ -113,7 +128,18 @@ int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu); enum { OUTSIDE_GUEST_MODE, IN_GUEST_MODE, - EXITING_GUEST_MODE + EXITING_GUEST_MODE, + READING_SHADOW_PAGE_TABLES, +}; + +/* + * Sometimes a large or cross-page mmio needs to be broken up into separate + * exits for userspace servicing. + */ +struct kvm_mmio_fragment { + gpa_t gpa; + void *data; + unsigned len; }; struct kvm_vcpu { @@ -143,10 +169,9 @@ struct kvm_vcpu { int mmio_needed; int mmio_read_completed; int mmio_is_write; - int mmio_size; - int mmio_index; - unsigned char mmio_data[KVM_MMIO_SIZE]; - gpa_t mmio_phys_addr; + int mmio_cur_fragment; + int mmio_nr_fragments; + struct kvm_mmio_fragment mmio_fragments[KVM_MAX_MMIO_FRAGMENTS]; #endif #ifdef CONFIG_KVM_ASYNC_PF @@ -178,8 +203,6 @@ struct kvm_memory_slot { unsigned long flags; unsigned long *rmap; unsigned long *dirty_bitmap; - unsigned long *dirty_bitmap_head; - unsigned long nr_dirty_pages; struct kvm_arch_memory_slot arch; unsigned long userspace_addr; int user_alloc; @@ -438,6 +461,8 @@ void mark_page_dirty_in_slot(struct kvm *kvm, struct kvm_memory_slot *memslot, gfn_t gfn); void kvm_vcpu_block(struct kvm_vcpu *vcpu); +void kvm_vcpu_kick(struct kvm_vcpu *vcpu); +bool kvm_vcpu_yield_to(struct kvm_vcpu *target); void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu); void kvm_resched(struct kvm_vcpu *vcpu); void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); @@ -506,6 +531,7 @@ 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_vcpu_should_kick(struct kvm_vcpu *vcpu); void kvm_free_physmem(struct kvm *kvm); @@ -521,6 +547,15 @@ static inline void kvm_arch_free_vm(struct kvm *kvm) } #endif +static inline wait_queue_head_t *kvm_arch_vcpu_wq(struct kvm_vcpu *vcpu) +{ +#ifdef __KVM_HAVE_ARCH_WQP + return vcpu->arch.wqp; +#else + return &vcpu->wq; +#endif +} + int kvm_arch_init_vm(struct kvm *kvm, unsigned long type); void kvm_arch_destroy_vm(struct kvm *kvm); void kvm_free_all_assigned_devices(struct kvm *kvm); @@ -769,6 +804,8 @@ int kvm_set_irq_routing(struct kvm *kvm, unsigned flags); void kvm_free_irq_routing(struct kvm *kvm); +int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi); + #else static inline void kvm_free_irq_routing(struct kvm *kvm) {} @@ -778,7 +815,7 @@ static inline void kvm_free_irq_routing(struct kvm *kvm) {} #ifdef CONFIG_HAVE_KVM_EVENTFD void kvm_eventfd_init(struct kvm *kvm); -int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags); +int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args); void kvm_irqfd_release(struct kvm *kvm); void kvm_irq_routing_update(struct kvm *, struct kvm_irq_routing_table *); int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); @@ -787,7 +824,7 @@ int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); static inline void kvm_eventfd_init(struct kvm *kvm) {} -static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) +static inline int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args) { return -EINVAL; } |