From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 85778430CDC for ; Tue, 7 Jul 2026 16:18:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.156.1 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783441118; cv=none; b=roU1xotHYpbOwFEQiWa6GtO8K6I1Tr42XzWECnCLWAtoiM/rL/YtUkjdWtUbTkFHBNphH2fTXDEcoJWJKxaYldhFafzMowGPT+DLnG6NafNf+A+KYK5FP/qC8kS+Rok2+hYQcB6PJ6sX0W7X8uWnEG3fbSFzUmGJOxV991FT8DE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783441118; c=relaxed/simple; bh=4Upg/csDgFGt/Kktk9yBCMVcNojdeoLVQredCWVAe2w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=TqofhO/XyEQzTFdqhEC8kW/WpQdfrSxqFoC24cH8kmBFvdXV5Q43ixQksAbxSLWXCv6+uX7ifmIK+Vta4RpJf2Bf2yp4YuIgOwxI/iuAcIZ/z1epZsvKkcmxzciRu/BOzJB4HSbF5sUEc34A5s21n1k//STMkES94aiuWojB5+E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=ksr0dwaW; arc=none smtp.client-ip=148.163.156.1 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="ksr0dwaW" Received: from pps.filterd (m0353729.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 667FmRkw310346; Tue, 7 Jul 2026 16:18:21 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=u8/tpfLQH8GAa3GsX 5IQ9yu62JDdwJZoiGc0Jewyj0c=; b=ksr0dwaWSIYRtsqQQl1bkR3+qxXKB5bqF ORTn+N8m6E/oFOhlPf7AzJj/2FWItx/8c7TsgYj5ea7/kcLCv4vH27Kp6d2D0UIM 17V8C3Df4++yKcEvd/M3nXtDFCCkNUNLZqOLVMCYwXpEt6jp84ufXDI3Ar1f/blM +qFCw8CZVBraNA8o2e3NhAjKgAPa3hi6g1eOFKB2/T3EAYiXxVOeKAVZaNyNuyXE Tu9ccuBDBjYdChzZcztORT69rIeW61LxIPsEAid43rc0yyF8ZnTqjBYgGXWXASnc kqvs61timGWKmRHesma0xKSj/7t8zY+GaAL74Uyd2uro+n/9Vzqdg== Received: from ppma12.dal12v.mail.ibm.com (dc.9e.1632.ip4.static.sl-reverse.com [50.22.158.220]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4f6suqqw2t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 07 Jul 2026 16:18:20 +0000 (GMT) Received: from pps.filterd (ppma12.dal12v.mail.ibm.com [127.0.0.1]) by ppma12.dal12v.mail.ibm.com (8.18.1.7/8.18.1.7) with ESMTP id 667G4elv019302; Tue, 7 Jul 2026 16:18:20 GMT Received: from smtprelay01.fra02v.mail.ibm.com ([9.218.2.227]) by ppma12.dal12v.mail.ibm.com (PPS) with ESMTPS id 4f7cgq3tun-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 07 Jul 2026 16:18:19 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay01.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 667GIGQl61211084 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 7 Jul 2026 16:18:16 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 42BD920065; Tue, 7 Jul 2026 16:18:16 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1C80C2004D; Tue, 7 Jul 2026 16:18:16 +0000 (GMT) Received: from funtu2.ibm.com (unknown [9.111.140.5]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 7 Jul 2026 16:18:16 +0000 (GMT) From: Harald Freudenberger To: richard.henderson@linaro.org, iii@linux.ibm.com, david@kernel.org, thuth@redhat.com, berrange@redhat.com Cc: qemu-s390x@nongnu.org, qemu-devel@nongnu.org, linux-s390@vger.kernel.org, dengler@linux.ibm.com, borntraeger@linux.ibm.com, fcallies@linux.ibm.com, cohuck@redhat.com Subject: [PATCH v11 12/21] target/s390x: Support protected key AES ECB for cpacf km instruction Date: Tue, 7 Jul 2026 18:17:59 +0200 Message-ID: <20260707161815.40919-13-freude@linux.ibm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260707161815.40919-1-freude@linux.ibm.com> References: <20260707161815.40919-1-freude@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA3MDE2MCBTYWx0ZWRfXz3p6SNabyWA0 rL+ZbcRvYTFhCpwKjg9u4mjCFJkcigWHgSs4JUckjWdnYJQ9MSaLwH4Y6t5gX51D2HgKECzoBks AIgGrmGTs33R4rPMzrQKHIlmeclrVvs= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzA3MDE2MCBTYWx0ZWRfXyEYCI01zHG/I NNWsZFo3J8BeIT3AJAVmU4viyKbfSt1W1RW/5Bf59wdFkSE5QGnpSgyEtaUBIwDx4ReM+FFMBbZ yNFPN6nh4qqqmkziOUvdhblt5WAa1kFFh4mXui6YpkxKXPthslzpVeEhCbM5G/7QcwFWiwiJF5b EPI0FwgI6Pnc/0+dLQGeRtFdjyEIe8T9+UHbRYhsKJerys77We6PaX1sUv6AsbB0+SnVUV7yygD eWZLT2Y6S2uDxcfryb70TYRVUildoi582t+HtbBT75bcz/+712DTyFmwrApODG0yBvSUOvlYGGI UH4VQ/SWoh4fE+jJa9lK7gvP/Am8DDYxCgMgdtdlejXrTCfHSVrt8IL8s/FOMHiiSKpGKPYpxlJ lYKeBLmemXxEEerNzxG2QZXJonhx+7KcvPPirvk692IJW7zBVF35i9BRr0ujGiDGxHzDYDkprvI msQyBuH3WlvJqmYWlyQ== X-Proofpoint-GUID: nf6UCTm3D9tGCUn_Tqxs3kYJdYD6TDEG X-Authority-Analysis: v=2.4 cv=Oot/DS/t c=1 sm=1 tr=0 ts=6a4d26cc cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=WpPIafo2g3WOFiBud6QA:9 X-Proofpoint-ORIG-GUID: nf6UCTm3D9tGCUn_Tqxs3kYJdYD6TDEG 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 bulkscore=0 lowpriorityscore=0 clxscore=1015 impostorscore=0 phishscore=0 malwarescore=0 suspectscore=0 spamscore=0 adultscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607070160 Support the subfunctions CPACF_KM_PAES_128, CPACF_KM_PAES_192 and CPACF_KM_PAES_256 for the cpacf km instruction. Tested-by: Holger Dengler Reviewed-by: Finn Callies Signed-off-by: Harald Freudenberger --- target/s390x/gen-features.c | 3 ++ target/s390x/tcg/cpacf.h | 4 ++ target/s390x/tcg/cpacf_aes.c | 86 ++++++++++++++++++++++++++++++++ target/s390x/tcg/crypto_helper.c | 7 +++ 4 files changed, 100 insertions(+) diff --git a/target/s390x/gen-features.c b/target/s390x/gen-features.c index d3e69aaca6..71e0e41d6e 100644 --- a/target/s390x/gen-features.c +++ b/target/s390x/gen-features.c @@ -924,6 +924,9 @@ static uint16_t qemu_MAX[] = { S390_FEAT_KM_AES_128, S390_FEAT_KM_AES_192, S390_FEAT_KM_AES_256, + S390_FEAT_KM_EAES_128, + S390_FEAT_KM_EAES_192, + S390_FEAT_KM_EAES_256, S390_FEAT_KM_XTS_AES_128, S390_FEAT_KM_XTS_AES_256, S390_FEAT_KMC_AES_128, diff --git a/target/s390x/tcg/cpacf.h b/target/s390x/tcg/cpacf.h index 1d7d9baf0c..9820ec293b 100644 --- a/target/s390x/tcg/cpacf.h +++ b/target/s390x/tcg/cpacf.h @@ -282,5 +282,9 @@ int cpacf_aes_xts(CPUS390XState *env, const int mmu_idx, uintptr_t ra, /* from cpacf_aes.c */ int cpacf_aes_pckmo(CPUS390XState *env, const int mmu_idx, uintptr_t ra, uint64_t param_addr, uint8_t fc); +int cpacf_paes_ecb(CPUS390XState *env, const int mmu_idx, uintptr_t ra, + uint64_t param_addr, uint64_t *dst_ptr_reg, + uint64_t *src_ptr_reg, uint64_t *src_len_reg, + uint32_t type, uint8_t fc, uint8_t mod); #endif /* S390X_CPACF_H */ diff --git a/target/s390x/tcg/cpacf_aes.c b/target/s390x/tcg/cpacf_aes.c index 28c0a0da8b..5ad518489b 100644 --- a/target/s390x/tcg/cpacf_aes.c +++ b/target/s390x/tcg/cpacf_aes.c @@ -544,3 +544,89 @@ int cpacf_aes_pckmo(CPUS390XState *env, const int mmu_idx, uintptr_t ra, return 0; } + +int cpacf_paes_ecb(CPUS390XState *env, const int mmu_idx, uintptr_t ra, + uint64_t param_addr, uint64_t *dst_ptr_reg, + uint64_t *src_ptr_reg, uint64_t *src_len_reg, + uint32_t type, uint8_t fc, uint8_t mod) +{ + enum { MAX_BLOCKS_PER_RUN = 8192 / AES_BLOCK_SIZE }; + const MemOpIdx oi = make_memop_idx(MO_8, mmu_idx); + uint8_t in[AES_BLOCK_SIZE], out[AES_BLOCK_SIZE]; + uint64_t addr, len = *src_len_reg, done = 0; + int i, keysize, addr_reg_size = 64; + uint8_t key[32], wkvp[32]; + AES_KEY exkey; + + g_assert(type == S390_FEAT_TYPE_KM); + + switch (fc) { + case CPACF_KM_PAES_128: + keysize = 16; + break; + case CPACF_KM_PAES_192: + keysize = 24; + break; + case CPACF_KM_PAES_256: + keysize = 32; + break; + default: + g_assert_not_reached(); + } + + if (!(env->psw.mask & PSW_MASK_64)) { + len = (uint32_t)len; + addr_reg_size = (env->psw.mask & PSW_MASK_32) ? 32 : 24; + } + + /* length has to be properly aligned. */ + if (!QEMU_IS_ALIGNED(len, AES_BLOCK_SIZE)) { + tcg_s390_program_interrupt(env, PGM_SPECIFICATION, ra); + } + + /* fetch and check wkvp from param block */ + for (i = 0; i < sizeof(wkvp); i++) { + addr = wrap_address(env, param_addr + keysize + i); + wkvp[i] = cpu_ldb_mmu(env, addr, oi, ra); + } + if (memcmp(wkvp, protkey_wkvp, sizeof(wkvp))) { + /* wkvp mismatch -> return with cc 1 */ + return 1; + } + + /* fetch protected key from param block */ + for (i = 0; i < keysize; i++) { + addr = wrap_address(env, param_addr + i); + key[i] = cpu_ldb_mmu(env, addr, oi, ra); + } + /* decrypt the protected key */ + decrypt_protkey(key, keysize); + + /* expand key */ + if (mod) { + AES_set_decrypt_key(key, keysize * 8, &exkey); + } else { + AES_set_encrypt_key(key, keysize * 8, &exkey); + } + + /* process up to MAX_BLOCKS_PER_RUN aes blocks */ + for (i = 0; i < MAX_BLOCKS_PER_RUN && len >= AES_BLOCK_SIZE; i++) { + aes_read_block(env, mmu_idx, *src_ptr_reg + done, in, ra); + if (mod) { + AES_decrypt(in, out, &exkey); + } else { + AES_encrypt(in, out, &exkey); + } + aes_write_block(env, mmu_idx, *dst_ptr_reg + done, out, ra); + len -= AES_BLOCK_SIZE; + done += AES_BLOCK_SIZE; + } + + *src_ptr_reg = deposit64(*src_ptr_reg, 0, addr_reg_size, + *src_ptr_reg + done); + *dst_ptr_reg = deposit64(*dst_ptr_reg, 0, addr_reg_size, + *dst_ptr_reg + done); + *src_len_reg -= done; + + return !len ? 0 : 3; +} diff --git a/target/s390x/tcg/crypto_helper.c b/target/s390x/tcg/crypto_helper.c index 08151e916f..b00351d8c1 100644 --- a/target/s390x/tcg/crypto_helper.c +++ b/target/s390x/tcg/crypto_helper.c @@ -103,6 +103,13 @@ static int cpacf_km(CPUS390XState *env, const int mmu_idx, uintptr_t ra, &env->regs[r1], &env->regs[r2], &env->regs[r2 + 1], S390_FEAT_TYPE_KM, fc, mod); break; + case CPACF_KM_PAES_128: + case CPACF_KM_PAES_192: + case CPACF_KM_PAES_256: + rc = cpacf_paes_ecb(env, mmu_idx, ra, env->regs[1], + &env->regs[r1], &env->regs[r2], &env->regs[r2 + 1], + S390_FEAT_TYPE_KM, fc, mod); + break; case CPACF_KM_XTS_128: case CPACF_KM_XTS_256: rc = cpacf_aes_xts(env, mmu_idx, ra, env->regs[1], -- 2.43.0