From nobody Tue Feb 10 23:14:36 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1685760025; cv=none; d=zohomail.com; s=zohoarc; b=ddVJ4iKrWFKTWas0gNcZ0xsFMROPPUntX0IZx9T45dryhvzKTXGUXt6Zbj6vW1hto3pVpx3MurwBFFfHWrsC3fPJ36EXoxPTzxkZxflKSLJOSilXySVf9IzYtoqtwiSBbJsapEHEuZICMNlzOjmiXGFENpRleMZNYbyr6mJFIkk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1685760025; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=1mv65yNQBKfmXk/1RwKfHXFoTLsAO9uOSejtwcDxftk=; b=SgY2KOFvi69xFNuYqphMlojbVHtxuREXdqOKognF3+MkaMk7rAwoumuiKanLzOhrliJDGkHtHH7Pgb6Pa1Aqqgi8T62henpylWT6+0xq3UoafufMni+DfIzoQ5XiGOhene6udE6xz2Bn1BD+vN24JexcMRoGedu28B6Rx5PFR68= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1685760025924136.04709401235107; Fri, 2 Jun 2023 19:40:25 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1q5H7o-00045T-J5; Fri, 02 Jun 2023 22:36:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1q5H6z-0000vG-N7 for qemu-devel@nongnu.org; Fri, 02 Jun 2023 22:35:27 -0400 Received: from mail-oo1-xc2a.google.com ([2607:f8b0:4864:20::c2a]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1q5H6Z-0004hU-4Q for qemu-devel@nongnu.org; Fri, 02 Jun 2023 22:35:25 -0400 Received: by mail-oo1-xc2a.google.com with SMTP id 006d021491bc7-5585f2f070bso1976148eaf.0 for ; Fri, 02 Jun 2023 19:34:58 -0700 (PDT) Received: from stoup.. ([2602:ae:1598:4c01:66a6:82c2:d794:68f6]) by smtp.gmail.com with ESMTPSA id e91-20020a17090a6fe400b002508d73f4e8sm3914289pjk.57.2023.06.02.19.34.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Jun 2023 19:34:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1685759698; x=1688351698; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=1mv65yNQBKfmXk/1RwKfHXFoTLsAO9uOSejtwcDxftk=; b=xFjVBowNsUokOTOx0vKDL21/yd7TvEYnuulS2RLvbeWbtteiUgQDR3Gvwlbb+LgiKE 7QK+3Q2eHM0/o9/Vpb06aexLd6GzW93iOPnjIgnCaWNy92mCZ0AFqOoztavJlztTTO32 2jyXUSwgSPIpaUJLfSnChosuoRnkS6HBMQpLi4F6DQLRoH4JRGWx7xYjR6QQIu6+rrLd 1iL9GMAx1MxzWKb/nmsxksP928Rk/5J8kynkv8punKQzX3OGlBHOqPvhplnzsjRpj1Wx uz9LQNPGC6XfNy7Ndsj8tyI/uKd2WPbB31O2ydwquAgOPmNhiG6OXwN3lHL+g4jUhEX4 TIRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685759698; x=1688351698; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=1mv65yNQBKfmXk/1RwKfHXFoTLsAO9uOSejtwcDxftk=; b=F+fbtyXvoLCbt4rHgi3uFhggGBI+FzGoJw9w5k9er1Uj3lHNcbpvf0eI1UTsGfoOpn 0LKjYla4i70bA7GfiG4bG6F5Rd5Lo+YqA89GJ/BRAxZyFg59Cym+xHsUzxuhYY0tJuyd I1DWRGK5JlZ+/S0RRFNyG8823iBcR571fYLdVceSNUDrPyAlVEh7h8V2A8TVIw275BNu H7oE+Oirjos2NHp7F6MjorUFJC3+LlEDF1ax82fHJdD+m8txETeLd6EX306bURwZxf+l pxlF1GausmJSPsNrCPUtA32TrQC6AesXBVjOJzf9y+iw40c4SxC6HJvIXYc6wLJaoaaD JxHQ== X-Gm-Message-State: AC+VfDwKSaZ41gArV0cj6r8crXCx9M5LH/ELDLJ58sBBg/RF/jJk9My8 JzZlQEyf7xpxCOjXiCGi/xIunQqGL+gSHXHlZvY= X-Google-Smtp-Source: ACHHUZ6b7rPsIc0Xsuz9ezjJe35Jlwoys51qYU7deD6jVYX6rmFU285siak+YOvgmmxMaMzor1Eq0w== X-Received: by 2002:a05:6358:e497:b0:123:1637:45d1 with SMTP id by23-20020a056358e49700b00123163745d1mr13082108rwb.14.1685759698318; Fri, 02 Jun 2023 19:34:58 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: ardb@kernel.org, berrange@redhat.com, qemu-arm@nongnu.org, qemu-ppc@nongnu.org, qemu-riscv@nongnu.org, pbonzini@redhat.com Subject: [PATCH 33/35] crypto: Implement aesdec_IMC with AES_imc_rot Date: Fri, 2 Jun 2023 19:34:24 -0700 Message-Id: <20230603023426.1064431-34-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230603023426.1064431-1-richard.henderson@linaro.org> References: <20230603023426.1064431-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::c2a; envelope-from=richard.henderson@linaro.org; helo=mail-oo1-xc2a.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1685760026229100001 Content-Type: text/plain; charset="utf-8" This method uses one uint32_t * 256 table instead of 4, which means its data cache overhead is less. Signed-off-by: Richard Henderson --- crypto/aes.c | 41 ++++++++++++++++++++--------------------- 1 file changed, 20 insertions(+), 21 deletions(-) diff --git a/crypto/aes.c b/crypto/aes.c index 4438d4dcdc..914ccf38ef 100644 --- a/crypto/aes.c +++ b/crypto/aes.c @@ -1453,39 +1453,38 @@ aesdec_IMC_swap(AESState *r, const AESState *st, bo= ol swap) bool be =3D HOST_BIG_ENDIAN ^ swap; uint32_t t; =20 - /* Note that AES_imc is encoded for big-endian. */ - t =3D (AES_imc[st->b[swap_b ^ 0x0]][0] ^ - AES_imc[st->b[swap_b ^ 0x1]][1] ^ - AES_imc[st->b[swap_b ^ 0x2]][2] ^ - AES_imc[st->b[swap_b ^ 0x3]][3]); - if (!be) { + t =3D ( AES_imc_rot[st->b[swap_b ^ 0x0]] ^ + rol32(AES_imc_rot[st->b[swap_b ^ 0x1]], 8) ^ + rol32(AES_imc_rot[st->b[swap_b ^ 0x2]], 16) ^ + rol32(AES_imc_rot[st->b[swap_b ^ 0x3]], 24)); + if (be) { t =3D bswap32(t); } r->w[swap_w ^ 0] =3D t; =20 - t =3D (AES_imc[st->b[swap_b ^ 0x4]][0] ^ - AES_imc[st->b[swap_b ^ 0x5]][1] ^ - AES_imc[st->b[swap_b ^ 0x6]][2] ^ - AES_imc[st->b[swap_b ^ 0x7]][3]); - if (!be) { + t =3D ( AES_imc_rot[st->b[swap_b ^ 0x4]] ^ + rol32(AES_imc_rot[st->b[swap_b ^ 0x5]], 8) ^ + rol32(AES_imc_rot[st->b[swap_b ^ 0x6]], 16) ^ + rol32(AES_imc_rot[st->b[swap_b ^ 0x7]], 24)); + if (be) { t =3D bswap32(t); } r->w[swap_w ^ 1] =3D t; =20 - t =3D (AES_imc[st->b[swap_b ^ 0x8]][0] ^ - AES_imc[st->b[swap_b ^ 0x9]][1] ^ - AES_imc[st->b[swap_b ^ 0xA]][2] ^ - AES_imc[st->b[swap_b ^ 0xB]][3]); - if (!be) { + t =3D ( AES_imc_rot[st->b[swap_b ^ 0x8]] ^ + rol32(AES_imc_rot[st->b[swap_b ^ 0x9]], 8) ^ + rol32(AES_imc_rot[st->b[swap_b ^ 0xA]], 16) ^ + rol32(AES_imc_rot[st->b[swap_b ^ 0xB]], 24)); + if (be) { t =3D bswap32(t); } r->w[swap_w ^ 2] =3D t; =20 - t =3D (AES_imc[st->b[swap_b ^ 0xC]][0] ^ - AES_imc[st->b[swap_b ^ 0xD]][1] ^ - AES_imc[st->b[swap_b ^ 0xE]][2] ^ - AES_imc[st->b[swap_b ^ 0xF]][3]); - if (!be) { + t =3D ( AES_imc_rot[st->b[swap_b ^ 0xC]] ^ + rol32(AES_imc_rot[st->b[swap_b ^ 0xD]], 8) ^ + rol32(AES_imc_rot[st->b[swap_b ^ 0xE]], 16) ^ + rol32(AES_imc_rot[st->b[swap_b ^ 0xF]], 24)); + if (be) { t =3D bswap32(t); } r->w[swap_w ^ 3] =3D t; --=20 2.34.1