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tests/tcg/aarch64: add system test for FEAT_XS

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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>
This commit is contained in:
Manos Pitsidianakis 2024-12-11 14:44:40 +00:00 committed by Peter Maydell
parent 19db1d4da7
commit daae2280ca
1 changed files with 27 additions and 0 deletions
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27
tests/tcg/aarch64/system/feat-xs.c Normal file
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/*
* FEAT_XS Test
*
* Copyright (c) 2024 Linaro Ltd
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <minilib.h>
#include <stdint.h>
int main(void)
{
uint64_t isar1;
asm volatile ("mrs %0, id_aa64isar1_el1" : "=r"(isar1));
if (((isar1 >> 56) & 0xf) < 1) {
ml_printf("FEAT_XS not supported by CPU");
return 1;
}
/* VMALLE1NXS */
asm volatile (".inst 0xd508971f");
/* VMALLE1OSNXS */
asm volatile (".inst 0xd508911f");
return 0;
}