From: Zeng Heng <zengheng4@huawei.com>
Date: Tue, 15 Aug 2023 04:09:13 +0000 (+0800)
Subject: kselftest/arm64: add AES feature check to hwcap test
X-Git-Tag: v6.6-rc1~184^2^2~3
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3fc3c0d1246cfe440d9c44f2134fde432b311ab3;p=thirdparty%2Flinux.git

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 83d3b6dcc0d8a..96c2611f1ac00 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,