/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Diagnose 0x288 snippet used for PV interception testing.
 *
 * Copyright (c) 2021 IBM Corp
 *
 * Authors:
 *  Janosch Frank <frankja@linux.ibm.com>
 */
#include <asm/asm-offsets.h>
#include "macros.S"
.section .text

/* Clean and pre-load registers that are used for diag 288 */
xgr	%r0, %r0
xgr	%r1, %r1
xgr	%r3, %r3
lghi	%r0, 1
lghi	%r1, 2
lghi	%r2, 3

/* Let's jump to the pgm exit label on a PGM */
SET_PSW_NEW_ADDR 4, exit_pgm, GEN_LC_PGM_NEW_PSW

/* Execute the diag288 */
diag	%r0, %r2, 0x288

/* Force exit if we don't get a PGM */
diag	0, 0, 0x44

/* Communicate the PGM code via diag9c(easiest) */
exit_pgm:
lh	%r1, GEN_LC_PGM_INT_CODE
diag	%r1, 0, 0x9c