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Diffstat (limited to 'include/linux/kvm_host.h')
-rw-r--r--include/linux/kvm_host.h106
1 files changed, 32 insertions, 74 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index a6059bdf7b03..26f106022c88 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -43,6 +43,7 @@
* include/linux/kvm_h.
*/
#define KVM_MEMSLOT_INVALID (1UL << 16)
+#define KVM_MEMSLOT_INCOHERENT (1UL << 17)
/* Two fragments for cross MMIO pages. */
#define KVM_MAX_MMIO_FRAGMENTS 2
@@ -353,6 +354,8 @@ struct kvm_memslots {
struct kvm_memory_slot memslots[KVM_MEM_SLOTS_NUM];
/* The mapping table from slot id to the index in memslots[]. */
short id_to_index[KVM_MEM_SLOTS_NUM];
+ atomic_t lru_slot;
+ int used_slots;
};
struct kvm {
@@ -395,7 +398,6 @@ struct kvm {
* Update side is protected by irq_lock.
*/
struct kvm_irq_routing_table __rcu *irq_routing;
- struct hlist_head mask_notifier_list;
#endif
#ifdef CONFIG_HAVE_KVM_IRQFD
struct hlist_head irq_ack_notifier_list;
@@ -447,6 +449,14 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
int __must_check vcpu_load(struct kvm_vcpu *vcpu);
void vcpu_put(struct kvm_vcpu *vcpu);
+#ifdef __KVM_HAVE_IOAPIC
+void kvm_vcpu_request_scan_ioapic(struct kvm *kvm);
+#else
+static inline void kvm_vcpu_request_scan_ioapic(struct kvm *kvm)
+{
+}
+#endif
+
#ifdef CONFIG_HAVE_KVM_IRQFD
int kvm_irqfd_init(void);
void kvm_irqfd_exit(void);
@@ -711,44 +721,6 @@ struct kvm_irq_ack_notifier {
void (*irq_acked)(struct kvm_irq_ack_notifier *kian);
};
-struct kvm_assigned_dev_kernel {
- struct kvm_irq_ack_notifier ack_notifier;
- struct list_head list;
- int assigned_dev_id;
- int host_segnr;
- int host_busnr;
- int host_devfn;
- unsigned int entries_nr;
- int host_irq;
- bool host_irq_disabled;
- bool pci_2_3;
- struct msix_entry *host_msix_entries;
- int guest_irq;
- struct 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 intx_lock;
- spinlock_t intx_mask_lock;
- char irq_name[32];
- struct pci_saved_state *pci_saved_state;
-};
-
-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, unsigned irqchip, unsigned pin,
- bool mask);
-
int kvm_irq_map_gsi(struct kvm *kvm,
struct kvm_kernel_irq_routing_entry *entries, int gsi);
int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin);
@@ -770,12 +742,6 @@ void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
#ifdef CONFIG_KVM_DEVICE_ASSIGNMENT
int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot);
void kvm_iommu_unmap_pages(struct kvm *kvm, struct kvm_memory_slot *slot);
-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
static inline int kvm_iommu_map_pages(struct kvm *kvm,
struct kvm_memory_slot *slot)
@@ -787,11 +753,6 @@ static inline void kvm_iommu_unmap_pages(struct kvm *kvm,
struct kvm_memory_slot *slot)
{
}
-
-static inline int kvm_iommu_unmap_guest(struct kvm *kvm)
-{
- return 0;
-}
#endif
static inline void kvm_guest_enter(void)
@@ -832,12 +793,28 @@ static inline void kvm_guest_exit(void)
static inline struct kvm_memory_slot *
search_memslots(struct kvm_memslots *slots, gfn_t gfn)
{
- struct kvm_memory_slot *memslot;
+ int start = 0, end = slots->used_slots;
+ int slot = atomic_read(&slots->lru_slot);
+ struct kvm_memory_slot *memslots = slots->memslots;
+
+ if (gfn >= memslots[slot].base_gfn &&
+ gfn < memslots[slot].base_gfn + memslots[slot].npages)
+ return &memslots[slot];
- kvm_for_each_memslot(memslot, slots)
- if (gfn >= memslot->base_gfn &&
- gfn < memslot->base_gfn + memslot->npages)
- return memslot;
+ while (start < end) {
+ slot = start + (end - start) / 2;
+
+ if (gfn >= memslots[slot].base_gfn)
+ end = slot;
+ else
+ start = slot + 1;
+ }
+
+ if (gfn >= memslots[start].base_gfn &&
+ gfn < memslots[start].base_gfn + memslots[start].npages) {
+ atomic_set(&slots->lru_slot, start);
+ return &memslots[start];
+ }
return NULL;
}
@@ -1011,25 +988,6 @@ static inline bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu) { return true; }
#endif
-#ifdef CONFIG_KVM_DEVICE_ASSIGNMENT
-
-long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
- unsigned long arg);
-
-void kvm_free_all_assigned_devices(struct kvm *kvm);
-
-#else
-
-static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
- unsigned long arg)
-{
- return -ENOTTY;
-}
-
-static inline void kvm_free_all_assigned_devices(struct kvm *kvm) {}
-
-#endif
-
static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu)
{
set_bit(req, &vcpu->requests);