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4963aeb35a
Add test cases for the SME signal handing ABI patterned off the SVE tests. Due to the small size of the tests and the differences in ABI (especially around needing to account for both streaming SVE and ZA) there is some code duplication here. We currently cover: - Reporting of the vector length. - Lack of support for changing vector length. - Presence and size of register state for streaming SVE and ZA. As with the SVE tests we do not yet have any validation of register contents. Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/20220419112247.711548-36-broonie@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
37 lines
707 B
C
37 lines
707 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2021 ARM Limited
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*
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* Verify that accessing ZA without enabling it generates a SIGILL.
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*/
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#include <signal.h>
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#include <ucontext.h>
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#include <sys/prctl.h>
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#include "test_signals_utils.h"
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#include "testcases.h"
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int sme_trap_za_trigger(struct tdescr *td)
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{
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/* ZERO ZA */
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asm volatile(".inst 0xc00800ff");
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return 0;
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}
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int sme_trap_za_run(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
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{
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return 1;
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}
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struct tdescr tde = {
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.name = "SME ZA trap",
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.descr = "Check that we get a SIGILL if we access ZA without enabling",
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.timeout = 3,
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.sanity_disabled = true,
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.trigger = sme_trap_za_trigger,
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.run = sme_trap_za_run,
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.sig_ok = SIGILL,
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};
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