From daae2280cad120a307083342ed0913f523b5aeb1 Mon Sep 17 00:00:00 2001 From: Manos Pitsidianakis Date: Wed, 11 Dec 2024 14:44:40 +0000 Subject: [PATCH] tests/tcg/aarch64: add system test for FEAT_XS 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 Signed-off-by: Peter Maydell 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 --- tests/tcg/aarch64/system/feat-xs.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 tests/tcg/aarch64/system/feat-xs.c diff --git a/tests/tcg/aarch64/system/feat-xs.c b/tests/tcg/aarch64/system/feat-xs.c new file mode 100644 index 0000000000..f310fc837e --- /dev/null +++ b/tests/tcg/aarch64/system/feat-xs.c @@ -0,0 +1,27 @@ +/* + * FEAT_XS Test + * + * Copyright (c) 2024 Linaro Ltd + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include +#include + +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; +} -- 2.30.2