manual ret-clean; ok mlarkin

diff --git a/sys/arch/amd64/amd64/mptramp.S b/sys/arch/amd64/amd64/mptramp.S
index 082f1d4..96247c8 100644 (file)
--- a/sys/arch/amd64/amd64/mptramp.S
+++ b/sys/arch/amd64/amd64/mptramp.S
@@ -1,4 +1,4 @@
-/*     $OpenBSD: mptramp.S,v 1.22 2022/12/01 00:26:15 guenther Exp $   */
+/*     $OpenBSD: mptramp.S,v 1.23 2024/07/12 13:10:58 deraadt Exp $    */
 /*     $NetBSD: mptramp.S,v 1.1 2003/04/26 18:39:30 fvdl Exp $ */
 
 /*-
@@ -233,6 +233,7 @@ GENTRY(cpu_spinup_finish)
        movl    $CR0_DEFAULT,%eax
        movq    %rax,%cr0
        call    cpu_hatch
+       movq    $0,-8(%rsp)
 END(cpu_spinup_finish)
        /* NOTREACHED */