diff mbox series

[07/35] target/arm: Use aesenc_SB_SR

Message ID 20230603023426.1064431-8-richard.henderson@linaro.org
State New
Headers show
Series crypto: Provide aes-round.h and host accel | expand

Commit Message

Richard Henderson June 3, 2023, 2:33 a.m. UTC 
This implements the AESE instruction.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/tcg/crypto_helper.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/target/arm/tcg/crypto_helper.c b/target/arm/tcg/crypto_helper.c
index 75882d9ea3..5cebc88f5f 100644
--- a/target/arm/tcg/crypto_helper.c
+++ b/target/arm/tcg/crypto_helper.c
@@ -15,6 +15,7 @@ 
 #include "exec/helper-proto.h"
 #include "tcg/tcg-gvec-desc.h"
 #include "crypto/aes.h"
+#include "crypto/aes-round.h"
 #include "crypto/sm4.h"
 #include "vec_internal.h"
 
@@ -70,7 +71,22 @@  void HELPER(crypto_aese)(void *vd, void *vn, void *vm, uint32_t desc)
     intptr_t i, opr_sz = simd_oprsz(desc);
 
     for (i = 0; i < opr_sz; i += 16) {
-        do_crypto_aese(vd + i, vn + i, vm + i, AES_sbox, AES_shifts);
+        AESState *ad = (AESState *)(vd + i);
+        AESState *st = (AESState *)(vn + i);
+        AESState *rk = (AESState *)(vm + i);
+        AESState t;
+
+        /* Our uint64_t are in the wrong order for big-endian. */
+        if (HOST_BIG_ENDIAN) {
+            t.d[0] = st->d[1] ^ rk->d[1];
+            t.d[1] = st->d[0] ^ rk->d[0];
+            aesenc_SB_SR(&t, &t, false);
+            ad->d[0] = t.d[1];
+            ad->d[1] = t.d[0];
+        } else {
+            t.v = st->v ^ rk->v;
+            aesenc_SB_SR(ad, &t, false);
+        }
     }
     clear_tail(vd, opr_sz, simd_maxsz(desc));
 }