1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (C) 2021 ARM Limited
4 *
5 * Verify that using a streaming mode instruction without enabling it
6 * generates a SIGILL.
7 */
8
9 #include <signal.h>
10 #include <ucontext.h>
11 #include <sys/prctl.h>
12
13 #include "test_signals_utils.h"
14 #include "testcases.h"
15
16 int sme_trap_no_sm_trigger(struct tdescr *td)
17 {
18 /* SMSTART ZA ; ADDHA ZA0.S, P0/M, P0/M, Z0.S */
19 asm volatile(".inst 0xd503457f ; .inst 0xc0900000");
20
21 return 0;
22 }
23
24 int sme_trap_no_sm_run(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
25 {
26 return 1;
27 }
28
29 struct tdescr tde = {
30 .name = "SME trap without SM",
31 .descr = "Check that we get a SIGILL if we use streaming mode without enabling it",
32 .timeout = 3,
33 .feats_required = FEAT_SME, /* We need a SMSTART ZA */
34 .sanity_disabled = true,
35 .trigger = sme_trap_no_sm_trigger,
36 .run = sme_trap_no_sm_run,
37 .sig_ok = SIGILL,
38 };
39
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