KVM: s390: vsie: fix riccbd

We store the address of riccbd at the wrong location, overwriting gvrd. This means that our nested guest will not be able to use runtime instrumentation. Also, a memory leak, if our KVM guest actually sets gvrd. Not noticed until now, as KVM guests never make use of gvrd and runtime instrumentation wasn't completely tested yet. Reported-by: Fan Zhang <[email protected]> Reviewed-by: Cornelia Huck <[email protected]> Signed-off-by: David Hildenbrand <[email protected]> Signed-off-by: Cornelia Huck <[email protected]>
Freescale · Sep 5, 2016 · 4d21cef · 4d21cef
1 parent 20b8f9e
commit 4d21cef
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
@@ -584,7 +584,7 @@ static int pin_blocks(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
 		/* Validity 0x0044 will be checked by SIE */
 		if (rc)
 			goto unpin;
-		scb_s->gvrd = hpa;
+		scb_s->riccbd = hpa;
 	}
 	return 0;
 unpin: