daae2280ca
Add system test to make sure FEAT_XS is enabled for max cpu emulation and that QEMU doesn't crash when encountering an NXS instruction variant. Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20241211144440.2700268-7-peter.maydell@linaro.org [PMM: In ISAR field test, mask with 0xf, not 0xff; use < rather than an equality test to follow the standard ID register field check guidelines] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
28 lines
500 B
C
28 lines
500 B
C
/*
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* FEAT_XS Test
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*
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* Copyright (c) 2024 Linaro Ltd
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include <minilib.h>
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#include <stdint.h>
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int main(void)
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{
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uint64_t isar1;
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asm volatile ("mrs %0, id_aa64isar1_el1" : "=r"(isar1));
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if (((isar1 >> 56) & 0xf) < 1) {
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ml_printf("FEAT_XS not supported by CPU");
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return 1;
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}
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/* VMALLE1NXS */
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asm volatile (".inst 0xd508971f");
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/* VMALLE1OSNXS */
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asm volatile (".inst 0xd508911f");
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return 0;
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}
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