#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/preempt.h>
-#include <linux/marker.h>
+#include <linux/msi.h>
#include <asm/signal.h>
#include <linux/kvm.h>
#define KVM_REQ_MMU_RELOAD 3
#define KVM_REQ_TRIPLE_FAULT 4
#define KVM_REQ_PENDING_TIMER 5
+#define KVM_REQ_UNHALT 6
+#define KVM_REQ_MMU_SYNC 7
+#define KVM_REQ_KVMCLOCK_UPDATE 8
+#define KVM_REQ_KICK 9
+#define KVM_USERSPACE_IRQ_SOURCE_ID 0
+
+struct kvm;
struct kvm_vcpu;
extern struct kmem_cache *kvm_vcpu_cache;
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);
-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;
struct mutex mutex;
int cpu;
struct kvm_run *run;
- int guest_mode;
unsigned long requests;
- struct kvm_guest_debug guest_debug;
+ unsigned long guest_debug;
int fpu_active;
int guest_fpu_loaded;
wait_queue_head_t wq;
struct {
unsigned long rmap_pde;
int write_count;
- } *lpage_info;
+ } *lpage_info[KVM_NR_PAGE_SIZES - 1];
unsigned long userspace_addr;
int user_alloc;
};
+struct kvm_kernel_irq_routing_entry {
+ u32 gsi;
+ u32 type;
+ int (*set)(struct kvm_kernel_irq_routing_entry *e,
+ struct kvm *kvm, int level);
+ union {
+ struct {
+ unsigned irqchip;
+ unsigned pin;
+ } irqchip;
+ struct msi_msg msi;
+ };
+ struct list_head link;
+};
+
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;
struct mm_struct *mm; /* userspace tied to this vm */
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;
+#ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
+ struct kvm_coalesced_mmio_dev *coalesced_mmio_dev;
+ 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;
+#endif
+
+#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
+ struct mmu_notifier mmu_notifier;
+ unsigned long mmu_notifier_seq;
+ long mmu_notifier_count;
+#endif
};
/* The guest did something we don't support. */
#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);
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);
unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
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);
int user_alloc);
long kvm_arch_vm_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg);
-void kvm_arch_destroy_vm(struct kvm *kvm);
int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
struct kvm_mp_state *mp_state);
int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
struct kvm_mp_state *mp_state);
-int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
- struct kvm_debug_guest *dbg);
+int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
+ struct kvm_guest_debug *dbg);
int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
int kvm_arch_init(void *opaque);
struct kvm *kvm_arch_create_vm(void);
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);
+int kvm_is_mmio_pfn(pfn_t pfn);
+
+struct kvm_irq_ack_notifier {
+ struct hlist_node link;
+ unsigned gsi;
+ void (*irq_acked)(struct kvm_irq_ack_notifier *kian);
+};
+
+#define KVM_ASSIGNED_MSIX_PENDING 0x1
+struct kvm_guest_msix_entry {
+ u32 vector;
+ u16 entry;
+ u16 flags;
+};
+
+struct kvm_assigned_dev_kernel {
+ struct kvm_irq_ack_notifier ack_notifier;
+ struct work_struct interrupt_work;
+ struct list_head list;
+ int assigned_dev_id;
+ int host_busnr;
+ int host_devfn;
+ unsigned int entries_nr;
+ int host_irq;
+ bool host_irq_disabled;
+ struct msix_entry *host_msix_entries;
+ int guest_irq;
+ struct kvm_guest_msix_entry *guest_msix_entries;
+ unsigned long irq_requested_type;
+ int irq_source_id;
+ int flags;
+ struct pci_dev *dev;
+ struct kvm *kvm;
+ spinlock_t assigned_dev_lock;
+};
+
+struct kvm_irq_mask_notifier {
+ void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
+ int irq;
+ struct hlist_node link;
+};
+
+void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
+ struct kvm_irq_mask_notifier *kimn);
+void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
+ struct kvm_irq_mask_notifier *kimn);
+void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask);
+
+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 *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);
+
+/* For vcpu->arch.iommu_flags */
+#define KVM_IOMMU_CACHE_COHERENCY 0x1
+
+#ifdef CONFIG_IOMMU_API
+int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn,
+ unsigned long npages);
+int kvm_iommu_map_guest(struct kvm *kvm);
+int kvm_iommu_unmap_guest(struct kvm *kvm);
+int kvm_assign_device(struct kvm *kvm,
+ struct kvm_assigned_dev_kernel *assigned_dev);
+int kvm_deassign_device(struct kvm *kvm,
+ struct kvm_assigned_dev_kernel *assigned_dev);
+#else /* CONFIG_IOMMU_API */
+static inline int kvm_iommu_map_pages(struct kvm *kvm,
+ gfn_t base_gfn,
+ unsigned long npages)
+{
+ return 0;
+}
+
+static inline int kvm_iommu_map_guest(struct kvm *kvm)
+{
+ return -ENODEV;
+}
+
+static inline int kvm_iommu_unmap_guest(struct kvm *kvm)
+{
+ return 0;
+}
+
+static inline int kvm_assign_device(struct kvm *kvm,
+ struct kvm_assigned_dev_kernel *assigned_dev)
+{
+ return 0;
+}
+
+static inline int kvm_deassign_device(struct kvm *kvm,
+ struct kvm_assigned_dev_kernel *assigned_dev)
+{
+ return 0;
+}
+#endif /* CONFIG_IOMMU_API */
+
static inline void kvm_guest_enter(void)
{
account_system_vtime(current);
return (gpa_t)gfn << PAGE_SHIFT;
}
+static inline hpa_t pfn_to_hpa(pfn_t pfn)
+{
+ return (hpa_t)pfn << PAGE_SHIFT;
+}
+
static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu)
{
set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
extern struct kvm_stats_debugfs_item debugfs_entries[];
extern struct dentry *kvm_debugfs_dir;
-#ifdef CONFIG_KVM_TRACE
-int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg);
-void kvm_trace_cleanup(void);
+#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
+static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq)
+{
+ if (unlikely(vcpu->kvm->mmu_notifier_count))
+ return 1;
+ /*
+ * Both reads happen under the mmu_lock and both values are
+ * modified under mmu_lock, so there's no need of smb_rmb()
+ * here in between, otherwise mmu_notifier_count should be
+ * read before mmu_notifier_seq, see
+ * mmu_notifier_invalidate_range_end write side.
+ */
+ if (vcpu->kvm->mmu_notifier_seq != mmu_seq)
+ return 1;
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_HAVE_KVM_IRQCHIP
+
+#define KVM_MAX_IRQ_ROUTES 1024
+
+int kvm_setup_default_irq_routing(struct kvm *kvm);
+int kvm_set_irq_routing(struct kvm *kvm,
+ const struct kvm_irq_routing_entry *entries,
+ unsigned nr,
+ unsigned flags);
+void kvm_free_irq_routing(struct kvm *kvm);
+
#else
-static inline
-int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg)
+
+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;
}
-#define kvm_trace_cleanup() ((void)0)
-#endif
+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
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff