1 files changed, 71 insertions, 43 deletions

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 3060bdc35ffe..4af56036a6bf 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