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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-493e0f294a6sm144099735e9.1.2026.07.07.11.16.26 for (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 07 Jul 2026 11:16:26 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PULL 08/23] target/mips: add Octeon AES COP2 helpers Date: Tue, 7 Jul 2026 20:15:13 +0200 Message-ID: <20260707181529.60191-9-philmd@oss.qualcomm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260707181529.60191-1-philmd@oss.qualcomm.com> References: <20260707181529.60191-1-philmd@oss.qualcomm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: 7IwV2qpvd1H3S2f6Z4P-ctHcHKBfTLk7 X-Proofpoint-ORIG-GUID: 7IwV2qpvd1H3S2f6Z4P-ctHcHKBfTLk7 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzA3MDE3OSBTYWx0ZWRfX3lemBd2icobe AWu1icfTmxpL436mR7tloJgz5aYvyyO5Lq667frHE/J4aw4HvMP0oRIYkapC44e38A/MH9Mvi0e iIk3k+VfB+/tdBgTeCOmDF+OuEjOfAobPFr81YK3MsQC1pPnbhHVonNBNHStw8eSRQiFJzmUHzM l/uiEnkoznlhlEfESjwYFz8yCG5x1UlC+A2KFHDnxe4CuEcWWLyneT+aRp7q2TvNE3VuBvPlLNh rMDX6Pl4pdgWXh3ImszvWPrmtdTaMr3svWkC2jfj83QTOxyUlvxO6KMUFEz+eRBsUXxAeOBUCal pnHT8yRC8+DMDu1zYkSPd2l83Zcv9ylLfubSHtHx9xcndGJUGI4VWN+j7sbe/DPdC4M3YhqG61F rwx/JJVeNJ0c9jl0Yxcieuy7hjc/Ex75fL3tefxOgBTd0kpye/gec6MuAh0sHjg9LCPQ61jqsEg AqT36nhR1yVubjAqLMQ== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA3MDE3OSBTYWx0ZWRfX2w9uoa4xeJcB EBdkiU/vjnE9SQHcNDL86Lx3NrIlSdANS41URiUQjwRE0wXPJaU7N9msSgGKrLLT8UGgniZrxv+ aw5RW/yZ2/Yf2Jcrzj8++3orKz2NQFc= X-Authority-Analysis: v=2.4 cv=atSCzyZV c=1 sm=1 tr=0 ts=6a4d4282 cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=4s3hRJSeHn4rkQlkrse1kQ==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=M51BFTxLslgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=pGLkceISAAAA:8 a=EUspDBNiAAAA:8 a=EKV_0V3Nn1vJCTxTkoUA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-07_04,2026-07-06_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 clxscore=1015 priorityscore=1501 spamscore=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 impostorscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607070179 Received-SPF: pass client-ip=205.220.168.131; envelope-from=philmd@oss.qualcomm.com; helo=mx0a-0031df01.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: James Hilliard Add helper support for the Octeon AES operation selectors. Direct register-transfer selectors do not need helpers; the ECB/CBC encrypt and decrypt operations consume the AES input, key, IV, and key-length state. AESRESINP is modeled as one architectural register bank; operation helpers consume the current AESRESINP block and write the result back to the same bank. Signed-off-by: James Hilliard Message-ID: <20260608-mips-octeon-missing-insns-v2-v16-8-daef7a0d8b04@gmail.com> Signed-off-by: Philippe Mathieu-Daudé --- target/mips/helper.h | 4 + target/mips/tcg/octeon_crypto.c | 145 ++++++++++++++++++++++++++++++++ 2 files changed, 149 insertions(+) diff --git a/target/mips/helper.h b/target/mips/helper.h index c4e7693df63..39c226ded92 100644 --- a/target/mips/helper.h +++ b/target/mips/helper.h @@ -52,6 +52,10 @@ DEF_HELPER_2(octeon_cp2_mt_zuc_start, void, env, i64) DEF_HELPER_2(octeon_cp2_mt_zuc_more, void, env, i64) DEF_HELPER_2(octeon_cp2_mt_snow3g_start, void, env, i64) DEF_HELPER_2(octeon_cp2_mt_snow3g_more, void, env, i64) +DEF_HELPER_2(octeon_cp2_mt_aes_enc_cbc1, void, env, i64) +DEF_HELPER_2(octeon_cp2_mt_aes_enc1, void, env, i64) +DEF_HELPER_2(octeon_cp2_mt_aes_dec_cbc1, void, env, i64) +DEF_HELPER_2(octeon_cp2_mt_aes_dec1, void, env, i64) /* microMIPS functions */ DEF_HELPER_4(lwm, void, env, tl, tl, i32) diff --git a/target/mips/tcg/octeon_crypto.c b/target/mips/tcg/octeon_crypto.c index 930a67346ef..117e3a5026e 100644 --- a/target/mips/tcg/octeon_crypto.c +++ b/target/mips/tcg/octeon_crypto.c @@ -840,6 +840,151 @@ static void octeon_snow3g_more(MIPSOcteonCryptoState *crypto) octeon_snow3g_queue_result(crypto); } +static int octeon_aes_key_bits(const MIPSOcteonCryptoState *crypto) +{ + enum { + OCTEON_AES_KEYLEN_128 = 1, + OCTEON_AES_KEYLEN_192 = 2, + OCTEON_AES_KEYLEN_256 = 3, + }; + + switch (crypto->aes_keylen) { + case OCTEON_AES_KEYLEN_128: + return 128; + case OCTEON_AES_KEYLEN_192: + return 192; + case OCTEON_AES_KEYLEN_256: + return 256; + default: + return 0; + } +} + +static void octeon_aes_load_key(const MIPSOcteonCryptoState *crypto, + uint8_t *key, size_t keylen) +{ + stq_be_p(key, crypto->aes_key[0]); + stq_be_p(key + 8, crypto->aes_key[1]); + if (keylen > 16) { + stq_be_p(key + 16, crypto->aes_key[2]); + } + if (keylen > 24) { + stq_be_p(key + 24, crypto->aes_key[3]); + } +} + +static void octeon_aes_load_block(const uint64_t regs[2], uint8_t *block) +{ + stq_be_p(block, regs[0]); + stq_be_p(block + 8, regs[1]); +} + +static void octeon_aes_store_block(uint64_t regs[2], const uint8_t *block) +{ + regs[0] = ldq_be_p(block); + regs[1] = ldq_be_p(block + 8); +} + +static void octeon_aes_encrypt_common(MIPSOcteonCryptoState *crypto, bool cbc) +{ + AES_KEY key; + uint8_t in[16]; + uint8_t out[16]; + uint8_t iv[16]; + uint8_t raw_key[32] = {}; + int bits = octeon_aes_key_bits(crypto); + + if (!bits) { + return; + } + + octeon_aes_load_key(crypto, raw_key, bits / 8); + octeon_aes_load_block(crypto->aes_resinp, in); + if (cbc) { + int i; + + octeon_aes_load_block(crypto->aes_iv, iv); + for (i = 0; i < sizeof(in); i++) { + in[i] ^= iv[i]; + } + } + + AES_set_encrypt_key(raw_key, bits, &key); + AES_encrypt(in, out, &key); + octeon_aes_store_block(crypto->aes_resinp, out); + if (cbc) { + octeon_aes_store_block(crypto->aes_iv, out); + } +} + +static void octeon_aes_decrypt_common(MIPSOcteonCryptoState *crypto, bool cbc) +{ + AES_KEY key; + uint8_t in[16]; + uint8_t out[16]; + uint8_t iv[16]; + uint8_t next_iv[16]; + uint8_t raw_key[32] = {}; + int bits = octeon_aes_key_bits(crypto); + int i; + + if (!bits) { + return; + } + + octeon_aes_load_key(crypto, raw_key, bits / 8); + octeon_aes_load_block(crypto->aes_resinp, in); + if (cbc) { + memcpy(next_iv, in, sizeof(next_iv)); + octeon_aes_load_block(crypto->aes_iv, iv); + } + + AES_set_decrypt_key(raw_key, bits, &key); + AES_decrypt(in, out, &key); + if (cbc) { + for (i = 0; i < sizeof(out); i++) { + out[i] ^= iv[i]; + } + } + + octeon_aes_store_block(crypto->aes_resinp, out); + if (cbc) { + octeon_aes_store_block(crypto->aes_iv, next_iv); + } +} + +void helper_octeon_cp2_mt_aes_enc_cbc1(CPUMIPSState *env, uint64_t value) +{ + MIPSOcteonCryptoState *crypto = &env->octeon_crypto; + + crypto->aes_resinp[1] = value; + octeon_aes_encrypt_common(crypto, true); +} + +void helper_octeon_cp2_mt_aes_enc1(CPUMIPSState *env, uint64_t value) +{ + MIPSOcteonCryptoState *crypto = &env->octeon_crypto; + + crypto->aes_resinp[1] = value; + octeon_aes_encrypt_common(crypto, false); +} + +void helper_octeon_cp2_mt_aes_dec_cbc1(CPUMIPSState *env, uint64_t value) +{ + MIPSOcteonCryptoState *crypto = &env->octeon_crypto; + + crypto->aes_resinp[1] = value; + octeon_aes_decrypt_common(crypto, true); +} + +void helper_octeon_cp2_mt_aes_dec1(CPUMIPSState *env, uint64_t value) +{ + MIPSOcteonCryptoState *crypto = &env->octeon_crypto; + + crypto->aes_resinp[1] = value; + octeon_aes_decrypt_common(crypto, false); +} + void helper_octeon_cp2_mt_snow3g_start(CPUMIPSState *env, uint64_t value) { octeon_snow3g_start(&env->octeon_crypto, value); -- 2.53.0