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1// SPDX-License-Identifier: GPL-2.02/*3 * Copyright (C) 2021 ARM Limited4 *5 * Verify that using an instruction not supported in streaming mode6 * traps when in streaming mode.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 16static union {17 ucontext_t uc;18 char buf[1024 * 128];19} context;20 21int zt_no_regs_run(struct tdescr *td, siginfo_t *si, ucontext_t *uc)22{23 size_t offset;24 struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context);25 26 /*27 * Get a signal context which should not have a ZT frame and28 * registers in it.29 */30 if (!get_current_context(td, &context.uc, sizeof(context)))31 return 1;32 33 head = get_header(head, ZT_MAGIC, GET_BUF_RESV_SIZE(context), &offset);34 if (head) {35 fprintf(stderr, "Got unexpected ZT context\n");36 return 1;37 }38 39 td->pass = 1;40 41 return 0;42}43 44struct tdescr tde = {45 .name = "ZT register data not present",46 .descr = "Validate that ZT is not present when ZA is disabled",47 .feats_required = FEAT_SME2,48 .timeout = 3,49 .sanity_disabled = true,50 .run = zt_no_regs_run,51};52