| 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 | |
|---|
| 15 | int sme_trap_za_trigger(struct tdescr *td) |
|---|
| 16 | { |
|---|
| 17 | /* ZERO ZA */ |
|---|
| 18 | asm volatile(".inst 0xc00800ff" ); |
|---|
| 19 | |
|---|
| 20 | return 0; |
|---|
| 21 | } |
|---|
| 22 | |
|---|
| 23 | int sme_trap_za_run(struct tdescr *td, siginfo_t *si, ucontext_t *uc) |
|---|
| 24 | { |
|---|
| 25 | return 1; |
|---|
| 26 | } |
|---|
| 27 | |
|---|
| 28 | struct 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 | }; |
|---|
| 37 | |
|---|
