1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/kvm/x86.c b/drivers/kvm/x86.c
index 609792637fb4..f1746afab9e5 100644
--- a/drivers/kvm/x86.c
+++ b/drivers/kvm/x86.c
@@ -2318,6 +2318,28 @@ struct fxsave {
 #endif
 };
 
+/*
+ * Translate a guest virtual address to a guest physical address.
+ */
+int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
+                                    struct kvm_translation *tr)
+{
+        unsigned long vaddr = tr->linear_address;
+        gpa_t gpa;
+
+        vcpu_load(vcpu);
+        mutex_lock(&vcpu->kvm->lock);
+        gpa = vcpu->mmu.gva_to_gpa(vcpu, vaddr);
+        tr->physical_address = gpa;
+        tr->valid = gpa != UNMAPPED_GVA;
+        tr->writeable = 1;
+        tr->usermode = 0;
+        mutex_unlock(&vcpu->kvm->lock);
+        vcpu_put(vcpu);
+
+        return 0;
+}
+
 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 {
         struct fxsave *fxsave = (struct fxsave *)&vcpu->guest_fx_image;