From 3fc3c0d1246cfe440d9c44f2134fde432b311ab3 Mon Sep 17 00:00:00 2001 From: Zeng Heng Date: Tue, 15 Aug 2023 12:09:13 +0800 Subject: [PATCH] kselftest/arm64: add AES feature check to hwcap test Add the AES feature check in the set of hwcap tests. Signed-off-by: Zeng Heng Reviewed-by: Mark Brown Link: https://lore.kernel.org/r/20230815040915.3966955-3-zengheng4@huawei.com Signed-off-by: Will Deacon --- tools/testing/selftests/arm64/abi/hwcap.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c index 83d3b6dcc0d8..96c2611f1ac0 100644 --- a/tools/testing/selftests/arm64/abi/hwcap.c +++ b/tools/testing/selftests/arm64/abi/hwcap.c @@ -34,6 +34,12 @@ */ typedef void (*sig_fn)(void); +static void aes_sigill(void) +{ + /* AESE V0.16B, V0.16B */ + asm volatile(".inst 0x4e284800" : : : ); +} + static void atomics_sigill(void) { /* STADD W0, [SP] */ @@ -273,6 +279,13 @@ static const struct hwcap_data { sig_fn sigbus_fn; bool sigbus_reliable; } hwcaps[] = { + { + .name = "AES", + .at_hwcap = AT_HWCAP, + .hwcap_bit = HWCAP_AES, + .cpuinfo = "aes", + .sigill_fn = aes_sigill, + }, { .name = "CRC32", .at_hwcap = AT_HWCAP, -- 2.50.1