1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (C) 2021 ARM Limited
 4 *
 5 * Verify that accessing ZA without enabling it generates a SIGILL.
 6 */
 7
 8#include <signal.h>
 9#include <ucontext.h>
10#include <sys/prctl.h>
11
12#include "test_signals_utils.h"
13#include "testcases.h"
14
15int sme_trap_za_trigger(struct tdescr *td)
16{
17	/* ZERO ZA */
18	asm volatile(".inst 0xc00800ff");
19
20	return 0;
21}
22
23int sme_trap_za_run(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
24{
25	return 1;
26}
27
28struct tdescr tde = {
29	.name = "SME ZA trap",
30	.descr = "Check that we get a SIGILL if we access ZA without enabling",
31	.timeout = 3,
32	.sanity_disabled = true,
33	.trigger = sme_trap_za_trigger,
34	.run = sme_trap_za_run,
35	.sig_ok = SIGILL,
36};

1