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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 ARM Limited
*
* Verify that using an instruction not supported in streaming mode
* traps when in streaming mode.
*/
#include <signal.h>
#include <ucontext.h>
#include <sys/prctl.h>
#include "test_signals_utils.h"
#include "testcases.h"
static union {
ucontext_t uc;
char buf[1024 * 128];
} context;
int zt_no_regs_run(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
{
size_t offset;
struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context);
/*
* Get a signal context which should not have a ZT frame and
* registers in it.
*/
if (!get_current_context(td, &context.uc, sizeof(context)))
return 1;
head = get_header(head, ZT_MAGIC, GET_BUF_RESV_SIZE(context), &offset);
if (head) {
fprintf(stderr, "Got unexpected ZT context\n");
return 1;
}
td->pass = 1;
return 0;
}
struct tdescr tde = {
.name = "ZT register data not present",
.descr = "Validate that ZT is not present when ZA is disabled",
.feats_required = FEAT_SME2,
.timeout = 3,
.sanity_disabled = true,
.run = zt_no_regs_run,
};
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