vcpu->preempted = false;
vcpu->ready = false;
preempt_notifier_init(&vcpu->preempt_notifier, &kvm_preempt_ops);
+ vcpu->last_used_slot = 0;
}
void kvm_vcpu_destroy(struct kvm_vcpu *vcpu)
struct kvm_memory_slot *kvm_vcpu_gfn_to_memslot(struct kvm_vcpu *vcpu, gfn_t gfn)
{
- return __gfn_to_memslot(kvm_vcpu_memslots(vcpu), gfn);
+ struct kvm_memslots *slots = kvm_vcpu_memslots(vcpu);
+ struct kvm_memory_slot *slot;
+ int slot_index;
+
+ slot = try_get_memslot(slots, vcpu->last_used_slot, gfn);
+ if (slot)
+ return slot;
+
+ /*
+ * Fall back to searching all memslots. We purposely use
+ * search_memslots() instead of __gfn_to_memslot() to avoid
+ * thrashing the VM-wide last_used_index in kvm_memslots.
+ */
+ slot = search_memslots(slots, gfn, &slot_index);
+ if (slot) {
+ vcpu->last_used_slot = slot_index;
+ return slot;
+ }
+
+ return NULL;
}
EXPORT_SYMBOL_GPL(kvm_vcpu_gfn_to_memslot);