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 <zengheng4@huawei.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230815040915.3966955-3-zengheng4@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c
index 83d3b6dcc0d8a3f790c024e7a4026bd9e9912896..96c2611f1ac00ae86b2469f70106f36a802d089d 100644 (file)
--- 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,