[24/35] target/riscv: Use aesenc_SB_SR_MC_AK

Commit Message

Richard Henderson June 3, 2023, 2:34 a.m. UTC

This implements the AES64ESM instruction.

Signed-off-by: Richard Henderson <[e-mail]>
---
 target/riscv/crypto_helper.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

Patch

diff --git a/target/riscv/crypto_helper.c b/target/riscv/crypto_helper.c
index 64004b2329..71694b787c 100644
--- a/target/riscv/crypto_helper.c
+++ b/target/riscv/crypto_helper.c
@@ -196,7 +196,16 @@  static inline target_ulong aes64_operation(target_ulong rs1, target_ulong rs2,
 
 target_ulong HELPER(aes64esm)(target_ulong rs1, target_ulong rs2)
 {
-    return aes64_operation(rs1, rs2, true, true);
+    AESState t, z = { };
+
+    /*
+     * This instruction does not include a round key,
+     * so supply a zero to our primitive.
+     */
+    t.d[HOST_BIG_ENDIAN] = rs1;
+    t.d[!HOST_BIG_ENDIAN] = rs2;
+    aesenc_SB_SR_MC_AK(&t, &t, &z, false);
+    return t.d[HOST_BIG_ENDIAN];
 }
 
 target_ulong HELPER(aes64es)(target_ulong rs1, target_ulong rs2)