KVM: PPC: Book3s HV: Implement get_dirty_log using hardware changed bit

[karo-tx-linux.git] / arch / powerpc / kvm / book3s.c

diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 6bf7e0582c5adcec3edfee883c13ea509c9deecf..7d54f4ed6d96e3b5fa41f57044f066567131a195 100644 (file)
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -477,45 +477,6 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
        return 0;
 }
 
-/*
- * Get (and clear) the dirty memory log for a memory slot.
- */
-int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
-                                     struct kvm_dirty_log *log)
-{
-       struct kvm_memory_slot *memslot;
-       struct kvm_vcpu *vcpu;
-       ulong ga, ga_end;
-       int is_dirty = 0;
-       int r;
-       unsigned long n;
-
-       mutex_lock(&kvm->slots_lock);
-
-       r = kvm_get_dirty_log(kvm, log, &is_dirty);
-       if (r)
-               goto out;
-
-       /* If nothing is dirty, don't bother messing with page tables. */
-       if (is_dirty) {
-               memslot = id_to_memslot(kvm->memslots, log->slot);
-
-               ga = memslot->base_gfn << PAGE_SHIFT;
-               ga_end = ga + (memslot->npages << PAGE_SHIFT);
-
-               kvm_for_each_vcpu(n, vcpu, kvm)
-                       kvmppc_mmu_pte_pflush(vcpu, ga, ga_end);
-
-               n = kvm_dirty_bitmap_bytes(memslot);
-               memset(memslot->dirty_bitmap, 0, n);
-       }
-
-       r = 0;
-out:
-       mutex_unlock(&kvm->slots_lock);
-       return r;
-}
-
 void kvmppc_decrementer_func(unsigned long data)
 {
        struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data;