diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h
index 0e7bd3873907..b2e2f9a4163c 100644
--- a/arch/s390/include/asm/uv.h
+++ b/arch/s390/include/asm/uv.h
@@ -442,7 +442,10 @@ static inline int share(unsigned long addr, u16 cmd)
 
 	if (!uv_call(0, (u64)&uvcb))
 		return 0;
-	return -EINVAL;
+	pr_err("%s UVC failed (rc: 0x%x, rrc: 0x%x), possible hypervisor bug.\n",
+	       uvcb.header.cmd == UVC_CMD_SET_SHARED_ACCESS ? "Share" : "Unshare",
+	       uvcb.header.rc, uvcb.header.rrc);
+	panic("System security cannot be guaranteed unless the system panics now.\n");
 }
 
 /*