From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BE72CC5DF7D for ; Tue, 18 Aug 2026 16:21:18 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wwMWV-0005cV-07; Tue, 18 Aug 2026 12:18:47 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wwMWS-0005Zj-5m; Tue, 18 Aug 2026 12:18:44 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wwMWN-0007Qh-Fv; Tue, 18 Aug 2026 12:18:43 -0400 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 67IE3oHL2831697; Tue, 18 Aug 2026 16:18:33 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=tXUhasaY/5qap0fF2 3qRfzzQxZ3bLjN4yF+zGsblRm0=; b=UOzt7MmbFw8kN5ThgqeQFllNf43n1B9M8 O5t+CpB6k9/SPLjYlwKfiYR+F3yTvvz2Zptrw+kMEgMEUb4IsN0KFf6RnrjwKXeb WBUzwo1k7jlshAKfctn7TPkFf60gfYoOnwoif8/L/vVtO+s8Ba2Dgi2xQR2gFamu zOL8oB2j3tA43C+p+tq4ZmM/3mb9fLlSr7D1XbcS7xIvbVcVtjqXm9p8h1qWpzc3 ghEu5vcCef8p86xDlcU3x8nvXG8Hxe5MUHWJ9NY0p9qlQO2IAisRJ1Fl0mCqiL6E kgjieP3O+C60PrTlRqEjNU3Cr3qPhg4Tst4zWiQ7LowJegGCxenLA== 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 4g2fsqsck5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 18 Aug 2026 16:18:32 +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 67IGBMUJ023737; Tue, 18 Aug 2026 16:18:32 GMT Received: from smtprelay02.fra02v.mail.ibm.com ([9.218.2.226]) by ppma12.dal12v.mail.ibm.com (PPS) with ESMTPS id 4g32eq49xg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 18 Aug 2026 16:18:31 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay02.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 67IGIS7s43581770 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 18 Aug 2026 16:18:28 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 584922004B; Tue, 18 Aug 2026 16:18:28 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2DA8E20043; Tue, 18 Aug 2026 16:18:28 +0000 (GMT) Received: from funtu2.ibm.com (unknown [9.111.161.134]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 18 Aug 2026 16:18:28 +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 v15 16/20] target/s390x: Support protected key AES CTR for cpacf kmctr instruction Date: Tue, 18 Aug 2026 18:18:20 +0200 Message-ID: <20260818161824.100746-17-freude@linux.ibm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260818161824.100746-1-freude@linux.ibm.com> References: <20260818161824.100746-1-freude@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODE4MDExOCBTYWx0ZWRfXw/P3uuMo2WPF ugAATkHJVzE9mWycBHTpc14NtRhJ7OAM/WtvBgM7PfIZPi/7EZS2KQBV92F125ZAkiQWehj5iiN +67qMNBSKs6tdwF+Ki3J+ZtF7+pL13i0/RIcaUIXRxxF6M1yrhHkv6bo64q80BdD6GJuSo3LqpA p+s3GeUlBsLhupU/O8PvPrJNJponAEV1+116PjLomR6jIxLur+yqWRC/IW5+sSjeonqvA//29ax yT5ESZS4FC8C0GZEZztepkZMvrFcqCtns6ume8yY2ELT01b+EcvEtjeE/Dc1txXwxLyaJEku8Hu NF804vUIMcNRsfc8H6rCx9iEAyF6MbgHFU9TPeYN7/5ABfI+bYTSOPWgLKTmg4FvS8Z6adfyXHA Qks5IbhoEfxejqtDtyd+5YcTd+WjxVmRxoVj1xIJlt8OmUavXX+ndDG7bHMKLiCH6V1svzkgXFK v3BQMt/xg5MQlLkXjnA== X-Proofpoint-ORIG-GUID: Ap3AV2PLrKdx1BSa7ecL98V5VTbaoEv5 X-Proofpoint-Spam-Info: AW1haW4tMjYwODE4MDExOCBTYWx0ZWRfX/3IzZdeRPM0f CK4gPVjrz544iGeUQHTLIzXFzBDauLuBA73bF+pL5Yljh4ObswDsOM/TiVsX2BrG+n75Vph877o L/LA4OveKtSkWk2vpDg+2/1eSNNghVo= X-Authority-Analysis: v=2.4 cv=DJe/JSNb c=1 sm=1 tr=0 ts=6a8485d8 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=f59o6tnjY-_5Ge3baHwA:9 X-Proofpoint-GUID: Ap3AV2PLrKdx1BSa7ecL98V5VTbaoEv5 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-18_02,2026-08-18_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 spamscore=0 clxscore=1015 bulkscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608180118 Received-SPF: pass client-ip=148.163.156.1; envelope-from=freude@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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 Support the subfunctions CPACF_KMCTR_PAES_128, CPACF_KMCTR_PAES_192 and CPACF_KMCTR_PAES_256 for the cpacf kmctr instruction. Signed-off-by: Harald Freudenberger Reviewed-by: Ilya Leoshkevich --- target/s390x/gen-features.c | 3 ++ target/s390x/tcg/cpacf.h | 5 ++ target/s390x/tcg/cpacf_aes.c | 92 ++++++++++++++++++++++++++++++++ target/s390x/tcg/crypto_helper.c | 7 +++ 4 files changed, 107 insertions(+) diff --git a/target/s390x/gen-features.c b/target/s390x/gen-features.c index d1fce9e00c..9898f880a6 100644 --- a/target/s390x/gen-features.c +++ b/target/s390x/gen-features.c @@ -939,6 +939,9 @@ static uint16_t qemu_MAX[] = { S390_FEAT_KMCTR_AES_128, S390_FEAT_KMCTR_AES_192, S390_FEAT_KMCTR_AES_256, + S390_FEAT_KMCTR_EAES_128, + S390_FEAT_KMCTR_EAES_192, + S390_FEAT_KMCTR_EAES_256, S390_FEAT_PCC_XTS_AES_128, S390_FEAT_PCC_XTS_AES_256, S390_FEAT_PCKMO_AES_128, diff --git a/target/s390x/tcg/cpacf.h b/target/s390x/tcg/cpacf.h index 73cb564c0b..15fd860e3a 100644 --- a/target/s390x/tcg/cpacf.h +++ b/target/s390x/tcg/cpacf.h @@ -48,5 +48,10 @@ int cpacf_paes_cbc(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); +int cpacf_paes_ctr(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, + uint64_t *ctr_ptr_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 e2a01b8bef..6208c7f27d 100644 --- a/target/s390x/tcg/cpacf_aes.c +++ b/target/s390x/tcg/cpacf_aes.c @@ -724,3 +724,95 @@ int cpacf_paes_cbc(CPUS390XState *env, const int mmu_idx, uintptr_t ra, return !len ? 0 : 3; } + +int cpacf_paes_ctr(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, + uint64_t *ctr_ptr_reg, uint32_t type, + uint8_t fc, uint8_t mod) +{ + enum { MAX_BLOCKS_PER_RUN = 8192 / AES_BLOCK_SIZE }; + uint8_t in[AES_BLOCK_SIZE], out[AES_BLOCK_SIZE]; + uint8_t ctr[AES_BLOCK_SIZE], key[32], wkvp[32]; + uint64_t len = *src_len_reg, done = 0; + int i, keysize, addr_reg_size; + AES_KEY exkey; + + g_assert(type == S390_FEAT_TYPE_KMCTR); + + switch (fc) { + case CPACF_KMCTR_PAES_128: + keysize = 16; + break; + case CPACF_KMCTR_PAES_192: + keysize = 24; + break; + case CPACF_KMCTR_PAES_256: + keysize = 32; + break; + default: + g_assert_not_reached(); + } + + /* check addressing mode, raise exception if not supported here */ + addr_reg_size = get_address_bitsize(env); + switch (addr_reg_size) { + case 64: + break; + case 32: + len = (uint32_t)len; + break; + default: + tcg_s390_program_interrupt(env, PGM_SPECIFICATION, ra); + } + + /* early bail out if length is zero */ + if (!len) { + return 0; + } + + /* 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 */ + read_guest_wrap_u8(env, mmu_idx, ra, + param_addr + keysize, wkvp, sizeof(wkvp)); + if (memcmp(wkvp, protkey_wkvp, sizeof(wkvp))) { + /* wkvp mismatch -> return with cc 1 */ + return 1; + } + + /* fetch protected key from param block */ + read_guest_wrap_u8(env, mmu_idx, ra, param_addr, key, keysize); + /* decrypt the protected key */ + decrypt_protkey(key, keysize); + + /* expand key */ + 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++) { + /* read in nonce/ctr => ctr */ + aes_read_block(env, mmu_idx, ra, *ctr_ptr_reg + done, ctr); + /* read in one block of input data => in */ + aes_read_block(env, mmu_idx, ra, *src_ptr_reg + done, in); + /* encrypt ctr and xor with in => out */ + AES_ctr_encrypt(in, out, ctr, &exkey); + /* write out the processed block */ + aes_write_block(env, mmu_idx, ra, *dst_ptr_reg + done, out); + 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); + *ctr_ptr_reg = deposit64(*ctr_ptr_reg, 0, addr_reg_size, + *ctr_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 44c24c632c..e9344dbbd9 100644 --- a/target/s390x/tcg/crypto_helper.c +++ b/target/s390x/tcg/crypto_helper.c @@ -174,6 +174,13 @@ static int cpacf_kmctr(CPUS390XState *env, const int mmu_idx, uintptr_t ra, &env->regs[r1], &env->regs[r2], &env->regs[r2 + 1], &env->regs[r3], S390_FEAT_TYPE_KMCTR, fc, mod); break; + case CPACF_KMCTR_PAES_128: + case CPACF_KMCTR_PAES_192: + case CPACF_KMCTR_PAES_256: + rc = cpacf_paes_ctr(env, mmu_idx, ra, env->regs[1], + &env->regs[r1], &env->regs[r2], &env->regs[r2 + 1], + &env->regs[r3], S390_FEAT_TYPE_KMCTR, fc, mod); + break; default: tcg_s390_program_interrupt(env, PGM_SPECIFICATION, ra); } -- 2.43.0