| 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 | |
|---|
