From nobody Tue Nov 26 15:24:00 2024 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 ARC-Seal: i=1; a=rsa-sha256; t=1706887429; cv=none; d=zohomail.com; s=zohoarc; b=JUm5K7NdHbHrBU5wJvJILLpRUIZQ/vo/klxZYcOIlUO8zvAdAHIkKMo/VAaRsR34wMBULbo0wMEFubBkEiaq8PGDNxNPOqEufSr5/u1KdeOyGa69kBAKBswB/y3TaifZ/VJn9MgQGfeXKz6Xli25upRdyrmmrzNCTTDydqaP/Jw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1706887429; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=8DbEnVS8J5zrAAvxjFOvjXj3Aby0zHgBTzHL04v/6hI=; b=jFGRWpVKuEJS1epG7Ij0+aNj9Q25JLfgLUbP7sNXQyHqn67EtYjnUOR46mzBeYcaNc/CHkUdBf3gUQG/jNxVB8oA1BeEfc4sgYgKNroiumscpeujAwphwEt/nHqOLTfmADeOaQqwK4U5qQXJHv/yntKbpLBqqK4q73MV2ZvS7Ug= 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1706887429448502.14997239727245; Fri, 2 Feb 2024 07:23:49 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rVvN2-0008QQ-4m; Fri, 02 Feb 2024 10:22:24 -0500 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 1rVvN0-0008PW-Oy for qemu-devel@nongnu.org; Fri, 02 Feb 2024 10:22:22 -0500 Received: from mail-pl1-x62d.google.com ([2607:f8b0:4864:20::62d]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rVvMz-0004Xj-3D for qemu-devel@nongnu.org; Fri, 02 Feb 2024 10:22:22 -0500 Received: by mail-pl1-x62d.google.com with SMTP id d9443c01a7336-1d93f2c3701so13354555ad.3 for ; Fri, 02 Feb 2024 07:22:20 -0800 (PST) Received: from grind.. ([177.94.15.159]) by smtp.gmail.com with ESMTPSA id j3-20020a170902f24300b001d714a1530bsm1734381plc.176.2024.02.02.07.22.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Feb 2024 07:22:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1706887339; x=1707492139; darn=nongnu.org; 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=8DbEnVS8J5zrAAvxjFOvjXj3Aby0zHgBTzHL04v/6hI=; b=bu1HXh/0M0bpccN9i285lZ2Pui8JwXdPLjk/SJSopPJ6mQ+GyMJaV+hA9SbtYV9FdV f6RGrQVoIQFG+PesSzPn4yNBqTL71UJaaIVhWHGuxBL6UPelrYDeje/AWVFTiBQgkHkw DkgYJoeI/0hzksPqBvRGy9Woo7/310fGZuQKVfB/fGnz6rvPvlKkkTZBwXjiKF7+mSNM HUhoaEH8ADs4ZDkEjFUL2xmeCFAkeLH+DGq5rDZJE0IewiOCAtgI6cxarozgm9vEbqdS 32O91aIpS16wcezaAhuV+5VANsbgmJ3+gHdYtozfF1D/VT8hZWiNJhzKAqCX2e+pSM/q f8fg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706887339; x=1707492139; 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=8DbEnVS8J5zrAAvxjFOvjXj3Aby0zHgBTzHL04v/6hI=; b=k1dEZHhOw2inGzxnMrE25xU0dwuGDFlhL0U/cakPPX5CAg380tcRkm2WUFBxKp+JHb dV89rmkbpkS4JFdbOilqzmQY2B8fCo1JMlkh58XZf0c3qh2muu7le+1L9RlWkRKiJC2H 9DducKYCpOWbFklFbZDOquicmKDVIgm7a9kb1CZf9575+JplAvltEPW6SGSea4HnUOD0 4eYqdktew2je3Fd95MJ0mOKGwVvC+2/t4ECLPA42haYIGokkjFWoDEaH0qXiIl/phXWu QAU/zK5kjing7/GSgyKz/pz68infxtB50+vAOFEv00hJor/bt1JDVsdbODP2CwS7BUYn wMRg== X-Gm-Message-State: AOJu0YwT1/3uwEMBrBEV1mmfsd9P+pxtv1UeU8f+a0DpKBBkcNPMmi9v 2U0D5N89XsO6eedkVcgsrWXmVp5jhezqRqRUib5N5hhfgU+paCTNxfEWs4n+CrM1WbFqpFDDBX8 v X-Google-Smtp-Source: AGHT+IHT1XsNDgSPfUCCCDiPFwVqOBxjOssyPrbHFUL5Srg8UbHJoglxOPQpP/cqrFzTtPOkNYPPaQ== X-Received: by 2002:a17:902:d488:b0:1d7:102b:2e60 with SMTP id c8-20020a170902d48800b001d7102b2e60mr9660353plg.52.1706887339086; Fri, 02 Feb 2024 07:22:19 -0800 (PST) X-Forwarded-Encrypted: i=0; AJvYcCUzswlhazj650tmffHcSUO3FplQtlkk3cjoVrz7L2N1uUqSGVmFqPHh1cuKEuoANGdVjI0rMUD0uTzxSGH6fOBmkRLhAcge6IrjCO31Cp7Z5CuQBwFzftE1X0R5bR03mF49GxRBYP7kfn2pjDXkcg1tNAmMm2RMvgsjBjyluXSmhMkAAwIi+ivJUdhSsSz1EQakWopl5XIQ3/tlrWmJA6BulkH7KPgAtNqRbJ17mcoCSkYazEFXC9PgJDhtu07ws+QEeau82bMCzy8XYabmrSLcByV1ogJ8CQ== From: Daniel Henrique Barboza To: qemu-devel@nongnu.org Cc: qemu-riscv@nongnu.org, alistair.francis@wdc.com, bmeng@tinylab.org, liwei1518@gmail.com, zhiwei_liu@linux.alibaba.com, palmer@rivosinc.com, ajones@ventanamicro.com, Daniel Henrique Barboza Subject: [PATCH v3 6/6] target/riscv: Promote svade to a normal extension Date: Fri, 2 Feb 2024 12:21:54 -0300 Message-ID: <20240202152154.773253-7-dbarboza@ventanamicro.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240202152154.773253-1-dbarboza@ventanamicro.com> References: <20240202152154.773253-1-dbarboza@ventanamicro.com> 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::62d; envelope-from=dbarboza@ventanamicro.com; helo=mail-pl1-x62d.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 @ventanamicro.com) X-ZM-MESSAGEID: 1706887431610100007 Content-Type: text/plain; charset="utf-8" From: Andrew Jones Named features are extensions which don't make sense for users to control and are therefore not exposed on the command line. However, svade is an extension which makes sense for users to control, so treat it like a "normal" extension. The default is false, even for the max cpu type, since QEMU has always implemented hardware A/D PTE bit updating, so users must opt into svade (or get it from a CPU type which enables it by default). Reviewed-by: Daniel Henrique Barboza Signed-off-by: Andrew Jones Reviewed-by: Alistair Francis --- target/riscv/cpu.c | 9 ++------- target/riscv/tcg/tcg-cpu.c | 6 ++++++ 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 50ac7845a8..f036b153a1 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -1422,6 +1422,7 @@ const RISCVCPUMultiExtConfig riscv_cpu_extensions[] = =3D { =20 MULTI_EXT_CFG_BOOL("smepmp", ext_smepmp, false), MULTI_EXT_CFG_BOOL("smstateen", ext_smstateen, false), + MULTI_EXT_CFG_BOOL("svade", ext_svade, false), MULTI_EXT_CFG_BOOL("svadu", ext_svadu, true), MULTI_EXT_CFG_BOOL("svinval", ext_svinval, false), MULTI_EXT_CFG_BOOL("svnapot", ext_svnapot, false), @@ -1534,7 +1535,6 @@ const RISCVCPUMultiExtConfig riscv_cpu_experimental_e= xts[] =3D { * and priv_ver like regular extensions. */ const RISCVCPUMultiExtConfig riscv_cpu_named_features[] =3D { - MULTI_EXT_CFG_BOOL("svade", ext_svade, true), MULTI_EXT_CFG_BOOL("zic64b", ext_zic64b, true), =20 /* @@ -2182,8 +2182,6 @@ static RISCVCPUProfile RVA22U64 =3D { * Other named features that we already implement: Sstvecd, Sstvala, * Sscounterenw * - * Named features that we need to enable: svade - * * The remaining features/extensions comes from RVA22U64. */ static RISCVCPUProfile RVA22S64 =3D { @@ -2195,10 +2193,7 @@ static RISCVCPUProfile RVA22S64 =3D { .ext_offsets =3D { /* rva22s64 exts */ CPU_CFG_OFFSET(ext_zifencei), CPU_CFG_OFFSET(ext_svpbmt), - CPU_CFG_OFFSET(ext_svinval), - - /* rva22s64 named features */ - CPU_CFG_OFFSET(ext_svade), + CPU_CFG_OFFSET(ext_svinval), CPU_CFG_OFFSET(ext_svade), =20 RISCV_PROFILE_EXT_LIST_END } diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c index 43c32b4a15..9fc64979f1 100644 --- a/target/riscv/tcg/tcg-cpu.c +++ b/target/riscv/tcg/tcg-cpu.c @@ -1314,6 +1314,12 @@ static void riscv_init_max_cpu_extensions(Object *ob= j) isa_ext_update_enabled(cpu, prop->offset, true); } =20 + /* + * Some extensions can't be added without backward compatibilty concer= ns. + * Disable those, the user can still opt in to them on the command lin= e. + */ + cpu->cfg.ext_svade =3D false; + /* set vector version */ env->vext_ver =3D VEXT_VERSION_1_00_0; =20 --=20 2.43.0