From 3cc7a88e0de813615794156e2b272e1b2ba2e72a Mon Sep 17 00:00:00 2001
From: Richard Henderson <richard.henderson@linaro.org>
Date: Mon, 24 May 2021 18:03:35 -0700
Subject: [PATCH] target/arm: Implement SVE2 crypto destructive binary
 operations

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525010358.152808-70-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/cpu.h           |  5 +++++
 target/arm/sve.decode      |  7 +++++++
 target/arm/translate-sve.c | 38 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 50 insertions(+)

diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index dcdde85f86..e808e6ba40 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -4256,6 +4256,11 @@ static inline bool isar_feature_aa64_sve2_bitperm(const ARMISARegisters *id)
     return FIELD_EX64(id->id_aa64zfr0, ID_AA64ZFR0, BITPERM) != 0;
 }
 
+static inline bool isar_feature_aa64_sve2_sm4(const ARMISARegisters *id)
+{
+    return FIELD_EX64(id->id_aa64zfr0, ID_AA64ZFR0, SM4) != 0;
+}
+
 static inline bool isar_feature_aa64_sve_i8mm(const ARMISARegisters *id)
 {
     return FIELD_EX64(id->id_aa64zfr0, ID_AA64ZFR0, I8MM) != 0;
diff --git a/target/arm/sve.decode b/target/arm/sve.decode
index a9cf3bea3e..46ebb5e2f8 100644
--- a/target/arm/sve.decode
+++ b/target/arm/sve.decode
@@ -118,6 +118,8 @@
 @pd_pn_pm       ........ esz:2 .. rm:4 ....... rn:4 . rd:4      &rrr_esz
 @rdn_rm         ........ esz:2 ...... ...... rm:5 rd:5 \
                 &rrr_esz rn=%reg_movprfx
+@rdn_rm_e0      ........ .. ...... ...... rm:5 rd:5 \
+                &rrr_esz rn=%reg_movprfx esz=0
 @rdn_sh_i8u     ........ esz:2 ...... ...... ..... rd:5 \
                 &rri_esz rn=%reg_movprfx imm=%sh8_i8u
 @rdn_i8u        ........ esz:2 ...... ... imm:8 rd:5 \
@@ -1564,3 +1566,8 @@ STNT1_zprz      1110010 .. 10 ..... 001 ... ..... ..... \
 # SVE2 crypto unary operations
 # AESMC and AESIMC
 AESMC           01000101 00 10000011100 decrypt:1 00000 rd:5
+
+# SVE2 crypto destructive binary operations
+AESE            01000101 00 10001 0 11100 0 ..... .....  @rdn_rm_e0
+AESD            01000101 00 10001 0 11100 1 ..... .....  @rdn_rm_e0
+SM4E            01000101 00 10001 1 11100 0 ..... .....  @rdn_rm_e0
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 79b4991549..3b977b2462 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -8159,3 +8159,41 @@ static bool trans_AESMC(DisasContext *s, arg_AESMC *a)
     }
     return true;
 }
+
+static bool do_aese(DisasContext *s, arg_rrr_esz *a, bool decrypt)
+{
+    if (!dc_isar_feature(aa64_sve2_aes, s)) {
+        return false;
+    }
+    if (sve_access_check(s)) {
+        gen_gvec_ool_zzz(s, gen_helper_crypto_aese,
+                         a->rd, a->rn, a->rm, decrypt);
+    }
+    return true;
+}
+
+static bool trans_AESE(DisasContext *s, arg_rrr_esz *a)
+{
+    return do_aese(s, a, false);
+}
+
+static bool trans_AESD(DisasContext *s, arg_rrr_esz *a)
+{
+    return do_aese(s, a, true);
+}
+
+static bool do_sm4(DisasContext *s, arg_rrr_esz *a, gen_helper_gvec_3 *fn)
+{
+    if (!dc_isar_feature(aa64_sve2_sm4, s)) {
+        return false;
+    }
+    if (sve_access_check(s)) {
+        gen_gvec_ool_zzz(s, fn, a->rd, a->rn, a->rm, 0);
+    }
+    return true;
+}
+
+static bool trans_SM4E(DisasContext *s, arg_rrr_esz *a)
+{
+    return do_sm4(s, a, gen_helper_crypto_sm4e);
+}
-- 
2.11.4.GIT