[PATCH v4 30/37] target/riscv: Use aesdec_ISB_ISR_AK

[Richard Henderson]

This implements the AES64DS instruction.

Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
 target/riscv/crypto_helper.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/target/riscv/crypto_helper.c b/target/riscv/crypto_helper.c
index b072fed3e2..e61f7fe1e5 100644
--- a/target/riscv/crypto_helper.c
+++ b/target/riscv/crypto_helper.c
@@ -213,7 +213,12 @@ target_ulong HELPER(aes64es)(target_ulong rs1, 
target_ulong rs2)
 
 target_ulong HELPER(aes64ds)(target_ulong rs1, target_ulong rs2)
 {
-    return aes64_operation(rs1, rs2, false, false);
+    AESState t;
+
+    t.d[HOST_BIG_ENDIAN] = rs1;
+    t.d[!HOST_BIG_ENDIAN] = rs2;
+    aesdec_ISB_ISR_AK(&t, &t, &aes_zero, false);
+    return t.d[HOST_BIG_ENDIAN];
 }
 
 target_ulong HELPER(aes64dsm)(target_ulong rs1, target_ulong rs2)
-- 
2.34.1