From nobody Tue Nov 26 14:49:31 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=1706275989; cv=none; d=zohomail.com; s=zohoarc; b=VLCzpG/TQzQYsvaxTHGe85MJOcM0VDLS9BwxZAmbkYk8OI+5xnEETjHS8IOs0Dh6PedaIpuPfhl9ll14LzOeAITUQZir+jb4gU5nKkj0t4xtyPbb9tHoJ5drGX85pFaggHCojP9uva2tx3Te5FxMLZb6krNz1fJRmWZivAvN+os= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1706275989; h=Content-Type: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=RVWt+St3Ao7R6IQtw+wm6ZjZD9uCy5mKNVtcNByTS0E=; b=SnuVa3i836qeMU16AZnY6IxkM5op8maNzPW9r/Nx93T0nqXjZsllKa6fihfrRuoP+Of1E5VYf+My1c4Iq10o+x98oWN+XbCkv/Mr0vgX9voXiQFZQ9I85bIzr+rZAV63GkczYenq/Uducu7RRhEDIDscpYra3WYsQZNez3TwA3k= 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 1706275989255880.5390347455453; Fri, 26 Jan 2024 05:33:09 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rTMIa-0000qD-Nq; Fri, 26 Jan 2024 08:31:12 -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 1rTMIY-0000lW-1S for qemu-devel@nongnu.org; Fri, 26 Jan 2024 08:31:10 -0500 Received: from mail-wm1-x32c.google.com ([2a00:1450:4864:20::32c]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rTMIU-0007bN-EE for qemu-devel@nongnu.org; Fri, 26 Jan 2024 08:31:09 -0500 Received: by mail-wm1-x32c.google.com with SMTP id 5b1f17b1804b1-40e72a567eeso12250355e9.0 for ; Fri, 26 Jan 2024 05:31:05 -0800 (PST) Received: from localhost (2001-1ae9-1c2-4c00-20f-c6b4-1e57-7965.ip6.tmcz.cz. [2001:1ae9:1c2:4c00:20f:c6b4:1e57:7965]) by smtp.gmail.com with ESMTPSA id b26-20020a056402139a00b0055c4c97b1f2sm591166edv.91.2024.01.26.05.31.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Jan 2024 05:31:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1706275865; x=1706880665; 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=RVWt+St3Ao7R6IQtw+wm6ZjZD9uCy5mKNVtcNByTS0E=; b=IeQwgOQ7vBckQ0DNx8H9kA1oX7cu/N9QIfuBZneyUbbRGyeYHVlPAr4kdLntGCDyXI yeSMRFhSLrFbsDfyQWRIH/MCJfXn+MmuWCWzMRDqoxTt6GtIeQzzsVU8OFurNPXlgowZ RsV5FMoydVE1r0RHcWCES8x14AMIp/haRgI5QEUvE/tVG8jjAGG4fG+s7nPFOjA+E5qG hIzxIoWp7cBiZvY4rrOBGlDi/jXR12BoEBBNsb6pXB+Bks2kYTI6Sqc6E4ucXMJ2t5dh ZJAx+itjDoyuuwm4o1nrICmBZSYuPwPKJ9fAVTG8/0hXCD+CQJJTOxobAmFi4s4wQQXV dkIQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706275865; x=1706880665; 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=RVWt+St3Ao7R6IQtw+wm6ZjZD9uCy5mKNVtcNByTS0E=; b=BXx1yMCmieq69X/xeI9r+iZYkoaSf887C1AWfM/sMvL7zz8ZCr69/KvCTIRzHmQuVu gn7/aFBRgBvAWcZo3TgzarfjJl0mihWe7Xit6rvF3APn5RCF8lQXvTryfwPJIqNJRJOs pqUBx3/KDMev0tDMLQPjKyFdIHpF6qdU/h0zwgzR9YH1CdEA4AAqqCVE9W7GOS6SAHzM fLJObSHtqWI/T5sbRCje/LCAcZf/vuJQEHQw8boZGVRovQoojSJXU1Fq1BGmgDJALQFK lTYVDg6PpdQK7fAQGCAJr8Nz44uhxyLOiCHGxn2pu276rR6b5ZtHas3G5fLj0vjcTYhQ Vf8Q== X-Gm-Message-State: AOJu0Yy7sO7lnChPZvgM0wS6klAeLk6r5xI2X1VsS5q3tZXowxJEEP6c m2/ml7jqNY/pU79kBVHsVMZ37SzC+fMdxYKJcImQcmImx1PSi+3pJjqIrvh60A13aDYTfMO5qzS u X-Google-Smtp-Source: AGHT+IHP6LQoTNmZHR2oodocUL7BmkJZvjTK5udXH74C2vxgw35NBxU+8nXWncJRB05FM+LlJS0KJg== X-Received: by 2002:a05:600c:3785:b0:40e:c7fc:a44d with SMTP id o5-20020a05600c378500b0040ec7fca44dmr547990wmr.355.1706275864754; Fri, 26 Jan 2024 05:31:04 -0800 (PST) From: Andrew Jones 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, dbarboza@ventanamicro.com Subject: [PATCH v2 1/6] target/riscv/tcg: set 'mmu' with 'satp' in cpu_set_profile() Date: Fri, 26 Jan 2024 14:31:03 +0100 Message-ID: <20240126133101.61344-9-ajones@ventanamicro.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240126133101.61344-8-ajones@ventanamicro.com> References: <20240126133101.61344-8-ajones@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=2a00:1450:4864:20::32c; envelope-from=ajones@ventanamicro.com; helo=mail-wm1-x32c.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=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: 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: 1706275989876100011 Content-Type: text/plain; charset="utf-8" From: Daniel Henrique Barboza Recent changes in options handling removed the 'mmu' default the bare CPUs had, meaning that we must enable 'mmu' by hand when using the rva22s64 profile CPU. Given that this profile is setting a satp mode, it already implies that we need a 'mmu'. Enable the 'mmu' in this case. Signed-off-by: Daniel Henrique Barboza Reviewed-by: Alistair Francis --- target/riscv/tcg/tcg-cpu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c index da437975b429..88f92d1c7d2c 100644 --- a/target/riscv/tcg/tcg-cpu.c +++ b/target/riscv/tcg/tcg-cpu.c @@ -1107,6 +1107,7 @@ static void cpu_set_profile(Object *obj, Visitor *v, = const char *name, =20 #ifndef CONFIG_USER_ONLY if (profile->satp_mode !=3D RISCV_PROFILE_ATTR_UNUSED) { + object_property_set_bool(obj, "mmu", true, NULL); const char *satp_prop =3D satp_mode_str(profile->satp_mode, riscv_cpu_is_32bit(cpu)); object_property_set_bool(obj, satp_prop, profile->enabled, NULL); --=20 2.43.0 From nobody Tue Nov 26 14:49:31 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=1706275987; cv=none; d=zohomail.com; s=zohoarc; b=A2Q8p4Fm1QL6oOPpXB0gH5QyGmoKC1HajOFg9WuPmZVQUIOr+ZpitsjymyfCIy+60aciDKpyNczVYX55JpXNx/uNh+Nz5e93G6mBvjEt5eYEfJCeCtAeXbQ6tiR7Ng27dZLLCk/P3VS/A7tcXRA9pmvL412DSlDFBSSKs7aLkd0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1706275987; h=Content-Type: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=tl3XBkr9UAckB5F+y1ZuGxqnzti7OGSHUoOS8FVpCXc=; b=mQlJYTN/kxIjJTr2OAXkD30BKoegANjYzxwrM0NcOWLeev4HQjWvCs3FzTu/VnBa2CFMGOC/TK6smD3Muen4Kapbs3N7W3gcIdr5EwzVaYHVAbSPwlkJJKSeAUzXrUzbZ0TMKRlakBZmTMbqGaxvoDJ5RdmPc2Ok9ucgzxt1yss= 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 1706275987949869.8442553872134; Fri, 26 Jan 2024 05:33:07 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rTMId-0000tN-Eq; Fri, 26 Jan 2024 08:31:15 -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 1rTMIY-0000mL-Ui for qemu-devel@nongnu.org; Fri, 26 Jan 2024 08:31:10 -0500 Received: from mail-ed1-x52f.google.com ([2a00:1450:4864:20::52f]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rTMIV-0007bi-Io for qemu-devel@nongnu.org; Fri, 26 Jan 2024 08:31:10 -0500 Received: by mail-ed1-x52f.google.com with SMTP id 4fb4d7f45d1cf-55cd798b394so3413300a12.0 for ; Fri, 26 Jan 2024 05:31:07 -0800 (PST) Received: from localhost (2001-1ae9-1c2-4c00-20f-c6b4-1e57-7965.ip6.tmcz.cz. [2001:1ae9:1c2:4c00:20f:c6b4:1e57:7965]) by smtp.gmail.com with ESMTPSA id hu21-20020a170907a09500b00a3472ae7782sm629357ejc.100.2024.01.26.05.31.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Jan 2024 05:31:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1706275866; x=1706880666; 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=tl3XBkr9UAckB5F+y1ZuGxqnzti7OGSHUoOS8FVpCXc=; b=bYHyK6CJlWEmq/AsiUDuMcNpnRAGvpk8zQmRkB03Fht4MGaGLLjQp0AGUMg4LWmIxT nkJUe4e38vSRixrfqGfbxfvdDo7ml509BYVkLCBC3fPLXJVG5GVoq5K9fbGyQLJct059 MnIFKYMF0TeN88ooq89q3Ay9+lIzdQtwQqiVtNUy8BEqKv6XlnBK9CRtoZoXK9NHTCD1 aHFjR7rMq3v7gO/yXyoz9PgvBuI6ZK3RAMqErlY9L/ltkKnh3+5Eesj03R1ZEzO3ZDi9 iG56vVjkgtCa5smPtvsaGOlFd5qpUBaEgKLUM2dRDzk6k2O1aOSo8nvi33PSin9S1r3l 5D/A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706275866; x=1706880666; 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=tl3XBkr9UAckB5F+y1ZuGxqnzti7OGSHUoOS8FVpCXc=; b=dxkKqFQakGaTCnPbDfU6C+5TXogJVp2mS0dzCT9hPTKDQHI+9Pm66SbQQSYpYG7iip OZDO5HAdpmihmPJ6zyNYmSNU+RZGWlTV1RSJKxhMhNJ9dq7wzEpS3R0g5achXavOGTcI cVMFvl0GQdGL4Biy2GjUAVKksFiMCaky276uEC8A/sGsMB3sar67TZ0gAXr+1pn1VfyU YXu5ooe1DQPVOItxe4l16jDIIFQ30w9Nd6her6lICI40DuMcYVZA1QVqyLdkRyZIHlF2 N83bxCly3BlMLmLHXvdX9v+BiKXykmA/p9VOQL+FOPkU5WotpEs3WEJIRfgAVPGFZxPm 4VnQ== X-Gm-Message-State: AOJu0YxFOgjN86UHE0luT7B+GfWxU1pgN4lzhcDPqXbARh33y/jQLNYE W1bwb06kwUPe+mPq8I8ZmoJwR7dnMsWqywPrT1FNj21eC5GBkZp0dZu3PnVBtAqGxyKAcgGOHZI X X-Google-Smtp-Source: AGHT+IGpkgqPVr30LJd8/i3GP/SiHVu9imMqt5sOaVI3A5WqGD9WuYOvI1wbqYP/VMqT+tFNjVLgqQ== X-Received: by 2002:a17:906:f6da:b0:a33:b38:f296 with SMTP id jo26-20020a170906f6da00b00a330b38f296mr1388462ejb.21.1706275866062; Fri, 26 Jan 2024 05:31:06 -0800 (PST) From: Andrew Jones 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, dbarboza@ventanamicro.com Subject: [PATCH v2 2/6] target/riscv: add riscv,isa to named features Date: Fri, 26 Jan 2024 14:31:04 +0100 Message-ID: <20240126133101.61344-10-ajones@ventanamicro.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240126133101.61344-8-ajones@ventanamicro.com> References: <20240126133101.61344-8-ajones@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=2a00:1450:4864:20::52f; envelope-from=ajones@ventanamicro.com; helo=mail-ed1-x52f.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: 1706275989772100008 Content-Type: text/plain; charset="utf-8" From: Daniel Henrique Barboza Further discussions after the introduction of rva22 support in QEMU revealed that what we've been calling 'named features' are actually regular extensions, with their respective riscv,isa DTs. This is clarified in [1]. [2] is a bug tracker asking for the profile spec to be less cryptic about it. As far as QEMU goes we understand extensions as something that the user can enable/disable in the command line. This isn't the case for named features, so we'll have to reach a middle ground. We'll keep our existing nomenclature 'named features' to refer to any extension that the user can't control in the command line. We'll also do the following: - 'svade' and 'zic64b' flags are renamed to 'ext_svade' and 'ext_zic64b'. 'ext_svade' and 'ext_zic64b' now have riscv,isa strings and priv_spec versions; - skip name feature check in cpu_bump_multi_ext_priv_ver(). Now that named features have a riscv,isa and an entry in isa_edata_arr[] we don't need to gate the call to cpu_cfg_ext_get_min_version() anymore. [1] https://github.com/riscv/riscv-profiles/issues/121 [2] https://github.com/riscv/riscv-profiles/issues/142 Signed-off-by: Daniel Henrique Barboza Reviewed-by: Andrew Jones Reviewed-by: Alistair Francis --- target/riscv/cpu.c | 17 +++++++++++++---- target/riscv/cpu_cfg.h | 6 ++++-- target/riscv/tcg/tcg-cpu.c | 16 ++++++---------- 3 files changed, 23 insertions(+), 16 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 88e8cc868144..28d3cfa8ce59 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -97,6 +97,7 @@ bool riscv_cpu_option_set(const char *optname) * instead. */ const RISCVIsaExtData isa_edata_arr[] =3D { + ISA_EXT_DATA_ENTRY(zic64b, PRIV_VERSION_1_12_0, ext_zic64b), ISA_EXT_DATA_ENTRY(zicbom, PRIV_VERSION_1_12_0, ext_zicbom), ISA_EXT_DATA_ENTRY(zicbop, PRIV_VERSION_1_12_0, ext_zicbop), ISA_EXT_DATA_ENTRY(zicboz, PRIV_VERSION_1_12_0, ext_zicboz), @@ -171,6 +172,7 @@ const RISCVIsaExtData isa_edata_arr[] =3D { ISA_EXT_DATA_ENTRY(ssaia, PRIV_VERSION_1_12_0, ext_ssaia), ISA_EXT_DATA_ENTRY(sscofpmf, PRIV_VERSION_1_12_0, ext_sscofpmf), ISA_EXT_DATA_ENTRY(sstc, PRIV_VERSION_1_12_0, ext_sstc), + ISA_EXT_DATA_ENTRY(svade, PRIV_VERSION_1_11_0, ext_svade), ISA_EXT_DATA_ENTRY(svadu, PRIV_VERSION_1_12_0, ext_svadu), ISA_EXT_DATA_ENTRY(svinval, PRIV_VERSION_1_12_0, ext_svinval), ISA_EXT_DATA_ENTRY(svnapot, PRIV_VERSION_1_12_0, ext_svnapot), @@ -1510,9 +1512,16 @@ const RISCVCPUMultiExtConfig riscv_cpu_experimental_= exts[] =3D { DEFINE_PROP_END_OF_LIST(), }; =20 +/* + * 'Named features' is the name we give to extensions that we + * don't want to expose to users. They are either immutable + * (always enabled/disable) or they'll vary depending on + * the resulting CPU state. They have riscv,isa strings + * and priv_ver like regular extensions. + */ const RISCVCPUMultiExtConfig riscv_cpu_named_features[] =3D { - MULTI_EXT_CFG_BOOL("svade", svade, true), - MULTI_EXT_CFG_BOOL("zic64b", zic64b, true), + MULTI_EXT_CFG_BOOL("svade", ext_svade, true), + MULTI_EXT_CFG_BOOL("zic64b", ext_zic64b, true), =20 DEFINE_PROP_END_OF_LIST(), }; @@ -2130,7 +2139,7 @@ static RISCVCPUProfile RVA22U64 =3D { CPU_CFG_OFFSET(ext_zicbop), CPU_CFG_OFFSET(ext_zicboz), =20 /* mandatory named features for this profile */ - CPU_CFG_OFFSET(zic64b), + CPU_CFG_OFFSET(ext_zic64b), =20 RISCV_PROFILE_EXT_LIST_END } @@ -2161,7 +2170,7 @@ static RISCVCPUProfile RVA22S64 =3D { CPU_CFG_OFFSET(ext_svinval), =20 /* rva22s64 named features */ - CPU_CFG_OFFSET(svade), + CPU_CFG_OFFSET(ext_svade), =20 RISCV_PROFILE_EXT_LIST_END } diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index e241922f89c4..698f926ab1be 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -117,13 +117,15 @@ struct RISCVCPUConfig { bool ext_smepmp; bool rvv_ta_all_1s; bool rvv_ma_all_1s; - bool svade; - bool zic64b; =20 uint32_t mvendorid; uint64_t marchid; uint64_t mimpid; =20 + /* Named features */ + bool ext_svade; + bool ext_zic64b; + /* Vendor-specific custom extensions */ bool ext_xtheadba; bool ext_xtheadbb; diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c index 88f92d1c7d2c..90861cc065e5 100644 --- a/target/riscv/tcg/tcg-cpu.c +++ b/target/riscv/tcg/tcg-cpu.c @@ -197,12 +197,12 @@ static bool cpu_cfg_offset_is_named_feat(uint32_t ext= _offset) static void riscv_cpu_enable_named_feat(RISCVCPU *cpu, uint32_t feat_offse= t) { switch (feat_offset) { - case CPU_CFG_OFFSET(zic64b): + case CPU_CFG_OFFSET(ext_zic64b): cpu->cfg.cbom_blocksize =3D 64; cpu->cfg.cbop_blocksize =3D 64; cpu->cfg.cboz_blocksize =3D 64; break; - case CPU_CFG_OFFSET(svade): + case CPU_CFG_OFFSET(ext_svade): cpu->cfg.ext_svadu =3D false; break; default: @@ -219,10 +219,6 @@ static void cpu_bump_multi_ext_priv_ver(CPURISCVState = *env, return; } =20 - if (cpu_cfg_offset_is_named_feat(ext_offset)) { - return; - } - ext_priv_ver =3D cpu_cfg_ext_get_min_version(ext_offset); =20 if (env->priv_ver < ext_priv_ver) { @@ -349,11 +345,11 @@ static void riscv_cpu_disable_priv_spec_isa_exts(RISC= VCPU *cpu) =20 static void riscv_cpu_update_named_features(RISCVCPU *cpu) { - cpu->cfg.zic64b =3D cpu->cfg.cbom_blocksize =3D=3D 64 && - cpu->cfg.cbop_blocksize =3D=3D 64 && - cpu->cfg.cboz_blocksize =3D=3D 64; + cpu->cfg.ext_zic64b =3D cpu->cfg.cbom_blocksize =3D=3D 64 && + cpu->cfg.cbop_blocksize =3D=3D 64 && + cpu->cfg.cboz_blocksize =3D=3D 64; =20 - cpu->cfg.svade =3D !cpu->cfg.ext_svadu; + cpu->cfg.ext_svade =3D !cpu->cfg.ext_svadu; } =20 static void riscv_cpu_validate_g(RISCVCPU *cpu) --=20 2.43.0 From nobody Tue Nov 26 14:49:31 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; 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We can't do this anymore since named features also has a riscv,isa entry. Let's add them to riscv_cpu_named_features[]. They will also need to be explicitly enabled in both profile descriptions. TCG will enable the named features it already implements, other accelerators are free to handle it as they like. After this patch, here's the riscv,isa from a buildroot using the 'rva22s64' CPU: # cat /proc/device-tree/cpus/cpu@0/riscv,isa rv64imafdc_zic64b_zicbom_zicbop_zicboz_ziccamoa_ziccif_zicclsm_ziccrse_ zicntr_zicsr_zifencei_zihintpause_zihpm_za64rs_zfhmin_zca_zcd_zba_zbb_ zbs_zkt_sscounterenw_sstvala_sstvecd_svade_svinval_svpbmt# Signed-off-by: Daniel Henrique Barboza Reviewed-by: Andrew Jones --- target/riscv/cpu.c | 41 +++++++++++++++++++++++++++++--------- target/riscv/cpu_cfg.h | 9 +++++++++ target/riscv/tcg/tcg-cpu.c | 19 +++++++++++++++++- 3 files changed, 59 insertions(+), 10 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 28d3cfa8ce59..1ecd8a57ed02 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -101,6 +101,10 @@ const RISCVIsaExtData isa_edata_arr[] =3D { ISA_EXT_DATA_ENTRY(zicbom, PRIV_VERSION_1_12_0, ext_zicbom), ISA_EXT_DATA_ENTRY(zicbop, PRIV_VERSION_1_12_0, ext_zicbop), ISA_EXT_DATA_ENTRY(zicboz, PRIV_VERSION_1_12_0, ext_zicboz), + ISA_EXT_DATA_ENTRY(ziccamoa, PRIV_VERSION_1_11_0, ext_ziccamoa), + ISA_EXT_DATA_ENTRY(ziccif, PRIV_VERSION_1_11_0, ext_ziccif), + ISA_EXT_DATA_ENTRY(zicclsm, PRIV_VERSION_1_11_0, ext_zicclsm), + ISA_EXT_DATA_ENTRY(ziccrse, PRIV_VERSION_1_11_0, ext_ziccrse), ISA_EXT_DATA_ENTRY(zicond, PRIV_VERSION_1_12_0, ext_zicond), ISA_EXT_DATA_ENTRY(zicntr, PRIV_VERSION_1_12_0, ext_zicntr), ISA_EXT_DATA_ENTRY(zicsr, PRIV_VERSION_1_10_0, ext_zicsr), @@ -109,6 +113,7 @@ const RISCVIsaExtData isa_edata_arr[] =3D { ISA_EXT_DATA_ENTRY(zihintpause, PRIV_VERSION_1_10_0, ext_zihintpause), ISA_EXT_DATA_ENTRY(zihpm, PRIV_VERSION_1_12_0, ext_zihpm), ISA_EXT_DATA_ENTRY(zmmul, PRIV_VERSION_1_12_0, ext_zmmul), + ISA_EXT_DATA_ENTRY(za64rs, PRIV_VERSION_1_12_0, ext_za64rs), ISA_EXT_DATA_ENTRY(zacas, PRIV_VERSION_1_12_0, ext_zacas), ISA_EXT_DATA_ENTRY(zawrs, PRIV_VERSION_1_12_0, ext_zawrs), ISA_EXT_DATA_ENTRY(zfa, PRIV_VERSION_1_12_0, ext_zfa), @@ -170,8 +175,12 @@ const RISCVIsaExtData isa_edata_arr[] =3D { ISA_EXT_DATA_ENTRY(smepmp, PRIV_VERSION_1_12_0, ext_smepmp), ISA_EXT_DATA_ENTRY(smstateen, PRIV_VERSION_1_12_0, ext_smstateen), ISA_EXT_DATA_ENTRY(ssaia, PRIV_VERSION_1_12_0, ext_ssaia), + ISA_EXT_DATA_ENTRY(ssccptr, PRIV_VERSION_1_11_0, ext_ssccptr), ISA_EXT_DATA_ENTRY(sscofpmf, PRIV_VERSION_1_12_0, ext_sscofpmf), + ISA_EXT_DATA_ENTRY(sscounterenw, PRIV_VERSION_1_12_0, ext_sscounterenw= ), ISA_EXT_DATA_ENTRY(sstc, PRIV_VERSION_1_12_0, ext_sstc), + ISA_EXT_DATA_ENTRY(sstvala, PRIV_VERSION_1_12_0, ext_sstvala), + ISA_EXT_DATA_ENTRY(sstvecd, PRIV_VERSION_1_12_0, ext_sstvecd), ISA_EXT_DATA_ENTRY(svade, PRIV_VERSION_1_11_0, ext_svade), ISA_EXT_DATA_ENTRY(svadu, PRIV_VERSION_1_12_0, ext_svadu), ISA_EXT_DATA_ENTRY(svinval, PRIV_VERSION_1_12_0, ext_svinval), @@ -1523,6 +1532,22 @@ const RISCVCPUMultiExtConfig riscv_cpu_named_feature= s[] =3D { MULTI_EXT_CFG_BOOL("svade", ext_svade, true), MULTI_EXT_CFG_BOOL("zic64b", ext_zic64b, true), =20 + /* + * cache-related extensions that are always enabled + * since QEMU RISC-V does not have a cache model. + */ + MULTI_EXT_CFG_BOOL("za64rs", ext_za64rs, true), + MULTI_EXT_CFG_BOOL("ziccif", ext_ziccif, true), + MULTI_EXT_CFG_BOOL("ziccrse", ext_ziccrse, true), + MULTI_EXT_CFG_BOOL("ziccamoa", ext_ziccamoa, true), + MULTI_EXT_CFG_BOOL("zicclsm", ext_zicclsm, true), + MULTI_EXT_CFG_BOOL("ssccptr", ext_ssccptr, true), + + /* Other named features that QEMU TCG always implements */ + MULTI_EXT_CFG_BOOL("sstvecd", ext_sstvecd, true), + MULTI_EXT_CFG_BOOL("sstvala", ext_sstvala, true), + MULTI_EXT_CFG_BOOL("sscounterenw", ext_sscounterenw, true), + DEFINE_PROP_END_OF_LIST(), }; =20 @@ -2116,13 +2141,8 @@ static const PropertyInfo prop_marchid =3D { }; =20 /* - * RVA22U64 defines some 'named features' or 'synthetic extensions' - * that are cache related: Za64rs, Zic64b, Ziccif, Ziccrse, Ziccamoa - * and Zicclsm. We do not implement caching in QEMU so we'll consider - * all these named features as always enabled. - * - * There's no riscv,isa update for them (nor for zic64b, despite it - * having a cfg offset) at this moment. + * RVA22U64 defines some cache related extensions: Za64rs, + * Ziccif, Ziccrse, Ziccamoa and Zicclsm. */ static RISCVCPUProfile RVA22U64 =3D { .parent =3D NULL, @@ -2139,7 +2159,9 @@ static RISCVCPUProfile RVA22U64 =3D { CPU_CFG_OFFSET(ext_zicbop), CPU_CFG_OFFSET(ext_zicboz), =20 /* mandatory named features for this profile */ - CPU_CFG_OFFSET(ext_zic64b), + CPU_CFG_OFFSET(ext_za64rs), CPU_CFG_OFFSET(ext_zic64b), + CPU_CFG_OFFSET(ext_ziccif), CPU_CFG_OFFSET(ext_ziccrse), + CPU_CFG_OFFSET(ext_ziccamoa), CPU_CFG_OFFSET(ext_zicclsm), =20 RISCV_PROFILE_EXT_LIST_END } @@ -2170,7 +2192,8 @@ static RISCVCPUProfile RVA22S64 =3D { CPU_CFG_OFFSET(ext_svinval), =20 /* rva22s64 named features */ - CPU_CFG_OFFSET(ext_svade), + CPU_CFG_OFFSET(ext_sstvecd), CPU_CFG_OFFSET(ext_sstvala), + CPU_CFG_OFFSET(ext_sscounterenw), CPU_CFG_OFFSET(ext_svade), =20 RISCV_PROFILE_EXT_LIST_END } diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index 698f926ab1be..f79fc3dfd199 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -125,6 +125,15 @@ struct RISCVCPUConfig { /* Named features */ bool ext_svade; bool ext_zic64b; + bool ext_za64rs; + bool ext_ziccif; + bool ext_ziccrse; + bool ext_ziccamoa; + bool ext_zicclsm; + bool ext_ssccptr; + bool ext_sstvecd; + bool ext_sstvala; + bool ext_sscounterenw; =20 /* Vendor-specific custom extensions */ bool ext_xtheadba; diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c index 90861cc065e5..6d5028cf84d0 100644 --- a/target/riscv/tcg/tcg-cpu.c +++ b/target/riscv/tcg/tcg-cpu.c @@ -206,7 +206,8 @@ static void riscv_cpu_enable_named_feat(RISCVCPU *cpu, = uint32_t feat_offset) cpu->cfg.ext_svadu =3D false; break; default: - g_assert_not_reached(); + /* Named feature already enabled in riscv_tcg_cpu_instance_init */ + return; } } =20 @@ -1342,6 +1343,20 @@ static bool riscv_cpu_has_max_extensions(Object *cpu= _obj) return object_dynamic_cast(cpu_obj, TYPE_RISCV_CPU_MAX) !=3D NULL; } =20 +/* Named features that TCG always implements */ +static void riscv_tcg_cpu_enable_named_feats(RISCVCPU *cpu) +{ + cpu->cfg.ext_za64rs =3D true; + cpu->cfg.ext_ziccif =3D true; + cpu->cfg.ext_ziccrse =3D true; + cpu->cfg.ext_ziccamoa =3D true; + cpu->cfg.ext_zicclsm =3D true; + cpu->cfg.ext_ssccptr =3D true; + cpu->cfg.ext_sstvecd =3D true; + cpu->cfg.ext_sstvala =3D true; + cpu->cfg.ext_sscounterenw =3D true; +} + static void riscv_tcg_cpu_instance_init(CPUState *cs) { RISCVCPU *cpu =3D RISCV_CPU(cs); @@ -1354,6 +1369,8 @@ static void riscv_tcg_cpu_instance_init(CPUState *cs) if (riscv_cpu_has_max_extensions(obj)) { riscv_init_max_cpu_extensions(obj); } + + riscv_tcg_cpu_enable_named_feats(cpu); } =20 static void riscv_tcg_cpu_init_ops(AccelCPUClass *accel_cpu, CPUClass *cc) --=20 2.43.0 From nobody Tue Nov 26 14:49:31 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=1706275967; cv=none; d=zohomail.com; s=zohoarc; b=eUVkdTcnLdFulHqkWYBPzxmWOzIleN38GDg673UWOrnB2qCtGr+Yj+AKcjW9++rSef+OqViunP4l7Q9/wHgjacob8RBAOdSxe8bLakKnTi+vl2jn+lKL1JOwgHk6Am1zZNvGDhy1YRlxH10IDjlVL75USIrgxwrYs3+z1FPUkbA= ARC-Message-Signature: i=1; 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[2001:1ae9:1c2:4c00:20f:c6b4:1e57:7965]) by smtp.gmail.com with ESMTPSA id fg14-20020a056402548e00b00558a1937dddsm593262edb.63.2024.01.26.05.31.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Jan 2024 05:31:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1706275868; x=1706880668; 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=/80PDTg3x6xAn5TJUsK9pPA95tqYtQVDFChFHkikpCo=; b=XYLYNAkYCadnHtyel0Z6HbNEBIoRLxXt9V6b8q05ydoRYAU7kPuMCBD/vxpdzstPsU VN0DV40R1rnjpFRQ/zGdp+1f1wSEdnHsYMlkGYGys5iS7E0QbkRjEa3qep5SxRmDYXvF SW9e4PMLgj8lV1/uSDuVqrMNFZD9e78mWnVp0+KnlXWUdnNF69uG/FQlPGi5bVUscYSs ZQxiZ4Y1aPFlptGeuAFfQlC/ePe2AN4BSooGw60Og1y4vDAVC95wZXnWCYWpX7VjfHf2 8J32gcxqAY5ENWtx5CJtxjxZPbNwz9XlmiXOgBE8jIXMcaJnRh9JCNcsVJsM1G0OunPI s8Qw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706275868; x=1706880668; 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=/80PDTg3x6xAn5TJUsK9pPA95tqYtQVDFChFHkikpCo=; b=BtU4QDWRtPtntRE5k0rvkZCD0mhdNlOxO9wQXeKJLGR8vkYdbsVv5uTwYp2PQ84/gz mA0EMj23JAaNu8J8PtHDDoZpnHpyqQTaSuGMfcKyAbAxfFfElugVyytfgHOZP7Usyiog suQiJb9vLz2uKV1eFSF9AHv9ykdwSxoWlBAeTFE8vYOOd0QV7f7TJZyGZ65V8t/j9uHL 3d6GebW47Qgugg3H6w4p+mWzUoK45EfZR6SrJFfD7AXjceATtBsBoizFiivlULOifQtx scv8kOjbu1fZTPykIKaL1aPQKGLAKuccXR5frELnF2ESzI9R03GRaIjNDwuLVG6694mw 6+XA== X-Gm-Message-State: AOJu0YzQ3osXvzdMgQvz6Tj81yMwp80edLSW5ORXOyf7Oql1duUVJqfG 88t9xU93+/M5fK3Jrrxw6F+3mMmDPsCP6cGoj/cr25sQ/46qRgMKQMnDIMU5GJFUuqfWLEOaqhG s X-Google-Smtp-Source: AGHT+IHcZhvt3gp6MF/UCzl1rRpqoqI+Pc8/LpTWj7CPnO0Roc/86vY+PDlVCslk27gI46aED/cirQ== X-Received: by 2002:aa7:dacd:0:b0:55d:4047:52cc with SMTP id x13-20020aa7dacd000000b0055d404752ccmr354308eds.24.1706275868647; Fri, 26 Jan 2024 05:31:08 -0800 (PST) From: Andrew Jones 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, dbarboza@ventanamicro.com Subject: [PATCH v2 4/6] target/riscv: Reset henvcfg to zero Date: Fri, 26 Jan 2024 14:31:06 +0100 Message-ID: <20240126133101.61344-12-ajones@ventanamicro.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240126133101.61344-8-ajones@ventanamicro.com> References: <20240126133101.61344-8-ajones@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=2a00:1450:4864:20::534; envelope-from=ajones@ventanamicro.com; helo=mail-ed1-x534.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: 1706275968233100007 Content-Type: text/plain; charset="utf-8" The hypervisor should decide what it wants to enable. Zero all configuration enable bits on reset. Also, commit ed67d63798f2 ("target/riscv: Update CSR bits name for svadu extension") missed one reference to 'hade'. Change it now. Fixes: 0af3f115e68e ("target/riscv: Add *envcfg.HADE related check in addre= ss translation") Fixes: ed67d63798f2 ("target/riscv: Update CSR bits name for svadu extensio= n") Reviewed-by: Daniel Henrique Barboza Signed-off-by: Andrew Jones --- target/riscv/cpu.c | 3 +-- target/riscv/csr.c | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 1ecd8a57ed02..7fd433daee74 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -961,8 +961,7 @@ static void riscv_cpu_reset_hold(Object *obj) =20 env->menvcfg =3D (cpu->cfg.ext_svpbmt ? MENVCFG_PBMTE : 0) | (cpu->cfg.ext_svadu ? MENVCFG_ADUE : 0); - env->henvcfg =3D (cpu->cfg.ext_svpbmt ? HENVCFG_PBMTE : 0) | - (cpu->cfg.ext_svadu ? HENVCFG_ADUE : 0); + env->henvcfg =3D 0; =20 /* Initialized default priorities of local interrupts. */ for (i =3D 0; i < ARRAY_SIZE(env->miprio); i++) { diff --git a/target/riscv/csr.c b/target/riscv/csr.c index d9a010387f72..93f7bc2cb48f 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -2115,7 +2115,7 @@ static RISCVException read_henvcfg(CPURISCVState *env= , int csrno, /* * henvcfg.pbmte is read_only 0 when menvcfg.pbmte =3D 0 * henvcfg.stce is read_only 0 when menvcfg.stce =3D 0 - * henvcfg.hade is read_only 0 when menvcfg.hade =3D 0 + * henvcfg.adue is read_only 0 when menvcfg.adue =3D 0 */ *val =3D env->henvcfg & (~(HENVCFG_PBMTE | HENVCFG_STCE | HENVCFG_ADUE= ) | env->menvcfg); --=20 2.43.0 From nobody Tue Nov 26 14:49:31 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=1706275967; cv=none; d=zohomail.com; s=zohoarc; b=k9qbS2tSbGtuKDTRAoO6OaQIuJFIl7WXeosw8wz4+9Kn9gdNFhmCcO/hPwcs2zp6stj+DKhoSoFGywGyxZqHa2jWUMmowFjU1NZY/U1cuCQzRKvtQSule2fxID/muOozWAYRxWK6WChzjtvcRnlqOJnq5fdQ+CA2Oi72aflXMi8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1706275967; h=Content-Type: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=c+kBSbmB+uu4ccq3+PBWVAG48fqoWqgXKPn/QchcjM0=; b=m0Gf8exO1AsgqxaCAyF1xsNze77Ql+D9vLVYxEvkMcE0EtFoW52V3Z78mUY0sok3BDpfoImqBz/TzO0GdVFNylL2sPBnsSga6L3lD2xbE3BrwPAN1EDZC5fxrkbzE2czKsTfyatSJMqxR/+xLLrfKtDpiPhlJPeyztQFQosp8ko= 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 1706275967203896.2936185377854; Fri, 26 Jan 2024 05:32:47 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rTMIl-00014P-LG; Fri, 26 Jan 2024 08:31:23 -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 1rTMIb-0000rO-Jx for qemu-devel@nongnu.org; Fri, 26 Jan 2024 08:31:13 -0500 Received: from mail-ed1-x52e.google.com ([2a00:1450:4864:20::52e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rTMIZ-0007cx-H5 for qemu-devel@nongnu.org; Fri, 26 Jan 2024 08:31:13 -0500 Received: by mail-ed1-x52e.google.com with SMTP id 4fb4d7f45d1cf-55817a12ad8so288510a12.2 for ; Fri, 26 Jan 2024 05:31:11 -0800 (PST) Received: from localhost (2001-1ae9-1c2-4c00-20f-c6b4-1e57-7965.ip6.tmcz.cz. [2001:1ae9:1c2:4c00:20f:c6b4:1e57:7965]) by smtp.gmail.com with ESMTPSA id ch21-20020a170906c2d500b00a317346a353sm629974ejb.123.2024.01.26.05.31.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Jan 2024 05:31:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1706275870; x=1706880670; 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=c+kBSbmB+uu4ccq3+PBWVAG48fqoWqgXKPn/QchcjM0=; b=TxennN52JV8bHgwXoZ4PUTFZejDuxWdNSIUmZ6Gv1uk1T6ciwTQ5hG6HBktjoli1zL zGQrHzW87mYgIFy8w4q/fpnmt2+THZImgHpIr78M2HwDVk32MizEUayCMpyF2Cg8aqRY jKRX2TtCEvDeFDy/jwktwPPeZUIYcC3pNfl+IFJj57VBeyHUg86ZoTZ3x327LnJzxHbE 7O5BpvPE3u7KWoauEEmaDWm5FjXz46FmQRxdWw3jGljSOCMfdtBcBKROC8vePqC8E5hW XYXiYMg62oJtD26e1qkaJcwcsLfW178WuPay00k4GwW985XsOcqMcAuMUADeSZavIU+W zijg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706275870; x=1706880670; 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=c+kBSbmB+uu4ccq3+PBWVAG48fqoWqgXKPn/QchcjM0=; b=wQP8LajPyGDD2jj5Y3KWNDo4yOMz+R9CCEM1ClSLWyUNFFDrHlk6zHUpvt2hNxJfI2 hJwgjVYxuXgrr23dLIlAoL9O8le4kLLPemI5XvIXWMNQRpLoiZRujV4ih8jlggg0XFTS 21UxKlnTB2uXYjNpSPayMThds/Z3S7iANz6p7taQmXTUhV470p1Jh2633K6HWyUtY8nS G1xlIhhIbBkiekRg8tpDbyZWtYwJ/+24dLhEuIb6u3JWpxjsEtfH8rkKisPg622mmO0L J0aDqsWqlhgpFEgOVXGXVstPiceD6NWTq9aSb+K08Q1V5EsURqPL0e/uj6pUL+id5njv LjIQ== X-Gm-Message-State: AOJu0Yy/+CP8B2MoGwOEg+MHM+3HzzU54HQUZQxpIBGM0t9aMOKRiCiM frnThxocK6Sva7gIWTnji8Cr/QPklAOsvBI37aiMyAY8386CfiZTdjlBP03kuEclhn3jcWTYch8 a X-Google-Smtp-Source: AGHT+IHnMPbpTkj4Cy8/ecQ2CRy1VMACkWyevAHtLHanlI4/I7u4hit1TnA+TN5C8tebRoTW9t0wkA== X-Received: by 2002:a17:906:a2c8:b0:a2f:b9be:66df with SMTP id by8-20020a170906a2c800b00a2fb9be66dfmr783974ejb.17.1706275869993; Fri, 26 Jan 2024 05:31:09 -0800 (PST) From: Andrew Jones 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, dbarboza@ventanamicro.com Subject: [PATCH v2 5/6] target/riscv: Gate hardware A/D PTE bit updating Date: Fri, 26 Jan 2024 14:31:07 +0100 Message-ID: <20240126133101.61344-13-ajones@ventanamicro.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240126133101.61344-8-ajones@ventanamicro.com> References: <20240126133101.61344-8-ajones@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=2a00:1450:4864:20::52e; envelope-from=ajones@ventanamicro.com; helo=mail-ed1-x52e.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=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: 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: 1706275968243100008 Content-Type: text/plain; charset="utf-8" Gate hardware A/D PTE bit updating on {m,h}envcfg.ADUE and only enable menvcfg.ADUE on reset if svade has not been selected. Now that we also consider svade, we have four possible configurations: 1) !svade && !svadu use hardware updating and there's no way to disable it (the default, which maintains past behavior. Maintaining the default, even with !svadu is a change that fixes [1]) 2) !svade && svadu use hardware updating, but also provide {m,h}envcfg.ADUE, allowing software to switch to exception mode (being able to switch is a change which fixes [1]) 3) svade && !svadu use exception mode and there's no way to switch to hardware updating (this behavior change fixes [2]) 4) svade && svadu use exception mode, but also provide {m,h}envcfg.ADUE, allowing software to switch to hardware updating (this behavior change fixes [2]) Fixes: 0af3f115e68e ("target/riscv: Add *envcfg.HADE related check in addre= ss translation") [1] Fixes: 48531f5adb2a ("target/riscv: implement svade") [2] Reviewed-by: Daniel Henrique Barboza Signed-off-by: Andrew Jones --- target/riscv/cpu.c | 2 +- target/riscv/cpu_helper.c | 18 ++++++++++++++---- target/riscv/tcg/tcg-cpu.c | 16 +++++----------- 3 files changed, 20 insertions(+), 16 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 7fd433daee74..a56c2ff91d6d 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -960,7 +960,7 @@ static void riscv_cpu_reset_hold(Object *obj) env->two_stage_lookup =3D false; =20 env->menvcfg =3D (cpu->cfg.ext_svpbmt ? MENVCFG_PBMTE : 0) | - (cpu->cfg.ext_svadu ? MENVCFG_ADUE : 0); + (!cpu->cfg.ext_svade && cpu->cfg.ext_svadu ? MENVCFG_AD= UE : 0); env->henvcfg =3D 0; =20 /* Initialized default priorities of local interrupts. */ diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c index 8da9104da450..9da9758cb4d4 100644 --- a/target/riscv/cpu_helper.c +++ b/target/riscv/cpu_helper.c @@ -907,7 +907,9 @@ static int get_physical_address(CPURISCVState *env, hwa= ddr *physical, } =20 bool pbmte =3D env->menvcfg & MENVCFG_PBMTE; - bool adue =3D env->menvcfg & MENVCFG_ADUE; + bool svade =3D riscv_cpu_cfg(env)->ext_svade; + bool svadu =3D riscv_cpu_cfg(env)->ext_svadu; + bool adue =3D svadu ? env->menvcfg & MENVCFG_ADUE : !svade; =20 if (first_stage && two_stage && env->virt_enabled) { pbmte =3D pbmte && (env->henvcfg & HENVCFG_PBMTE); @@ -1082,9 +1084,17 @@ restart: return TRANSLATE_FAIL; } =20 - /* If necessary, set accessed and dirty bits. */ - target_ulong updated_pte =3D pte | PTE_A | - (access_type =3D=3D MMU_DATA_STORE ? PTE_D : 0); + target_ulong updated_pte =3D pte; + + /* + * If ADUE is enabled, set accessed and dirty bits. + * Otherwise raise an exception if necessary. + */ + if (adue) { + updated_pte |=3D PTE_A | (access_type =3D=3D MMU_DATA_STORE ? PTE_= D : 0); + } else if (!(pte & PTE_A) || (access_type =3D=3D MMU_DATA_STORE && !(p= te & PTE_D))) { + return TRANSLATE_FAIL; + } =20 /* Page table updates need to be atomic with MTTCG enabled */ if (updated_pte !=3D pte && !is_debug) { diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c index 6d5028cf84d0..bc3c45b11704 100644 --- a/target/riscv/tcg/tcg-cpu.c +++ b/target/riscv/tcg/tcg-cpu.c @@ -196,18 +196,14 @@ static bool cpu_cfg_offset_is_named_feat(uint32_t ext= _offset) =20 static void riscv_cpu_enable_named_feat(RISCVCPU *cpu, uint32_t feat_offse= t) { - switch (feat_offset) { - case CPU_CFG_OFFSET(ext_zic64b): + /* + * All other named features are already enabled + * in riscv_tcg_cpu_instance_init(). + */ + if (feat_offset =3D=3D CPU_CFG_OFFSET(ext_zic64b)) { cpu->cfg.cbom_blocksize =3D 64; cpu->cfg.cbop_blocksize =3D 64; cpu->cfg.cboz_blocksize =3D 64; - break; - case CPU_CFG_OFFSET(ext_svade): - cpu->cfg.ext_svadu =3D false; - break; - default: - /* Named feature already enabled in riscv_tcg_cpu_instance_init */ - return; } } =20 @@ -349,8 +345,6 @@ static void riscv_cpu_update_named_features(RISCVCPU *c= pu) cpu->cfg.ext_zic64b =3D cpu->cfg.cbom_blocksize =3D=3D 64 && cpu->cfg.cbop_blocksize =3D=3D 64 && cpu->cfg.cboz_blocksize =3D=3D 64; - - cpu->cfg.ext_svade =3D !cpu->cfg.ext_svadu; } =20 static void riscv_cpu_validate_g(RISCVCPU *cpu) --=20 2.43.0 From nobody Tue Nov 26 14:49:31 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=1706275989; cv=none; d=zohomail.com; s=zohoarc; b=FQrRhQjurrn+mJfVcmp5Ly/nvkzh1Z9dxKJJXNB5BG0D2m0WYur4kcIfpFQKRwa176A+aP9PYSsaOk1dnBgKevXvAFt/cnQo0mre4/J4Wx9mQBIvwr/4njAoqU9J68L3Q915Zs4BTd1HRQTr5E4do4f9kXXSYk6HAv+o7X4xZFk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1706275989; h=Content-Type: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=QiekAr7rZgYcU2IGkVrfbUPYTKoPVa5QUXzJp79BZr4=; b=TnCGpmIyYu8udfolkI9MUVfwDC0nCuh46KLc3HEwbF+smS/PthmqMpMC9Po7XkAR/pmVAKltuxdAtYwEIpe7FN3T4ScSNJxcFg+2g2nBS+ZbFfZv/1wXSaqiouMexLYyETsooFwvGh0BNuo4aMcL3kS2m0zKUhehNzM2WVhWq7w= 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 1706275989167565.0447901468518; Fri, 26 Jan 2024 05:33:09 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rTMIm-00015e-9a; Fri, 26 Jan 2024 08:31:24 -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 1rTMIc-0000t2-Po for qemu-devel@nongnu.org; Fri, 26 Jan 2024 08:31:14 -0500 Received: from mail-ed1-x52e.google.com ([2a00:1450:4864:20::52e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rTMIa-0007dW-Rj for qemu-devel@nongnu.org; Fri, 26 Jan 2024 08:31:14 -0500 Received: by mail-ed1-x52e.google.com with SMTP id 4fb4d7f45d1cf-55a179f5fa1so373284a12.0 for ; Fri, 26 Jan 2024 05:31:12 -0800 (PST) Received: from localhost (2001-1ae9-1c2-4c00-20f-c6b4-1e57-7965.ip6.tmcz.cz. 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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 --- target/riscv/cpu.c | 8 +++----- target/riscv/tcg/tcg-cpu.c | 6 ++++++ 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index a56c2ff91d6d..4ddde2541233 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -1421,6 +1421,7 @@ 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), @@ -1528,7 +1529,6 @@ 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 /* @@ -2175,8 +2175,6 @@ 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 { @@ -2188,11 +2186,11 @@ static RISCVCPUProfile RVA22S64 =3D { .ext_offsets =3D { /* rva22s64 exts */ CPU_CFG_OFFSET(ext_zifencei), CPU_CFG_OFFSET(ext_svpbmt), - CPU_CFG_OFFSET(ext_svinval), + CPU_CFG_OFFSET(ext_svinval), CPU_CFG_OFFSET(ext_svade), =20 /* rva22s64 named features */ CPU_CFG_OFFSET(ext_sstvecd), CPU_CFG_OFFSET(ext_sstvala), - CPU_CFG_OFFSET(ext_sscounterenw), CPU_CFG_OFFSET(ext_svade), + CPU_CFG_OFFSET(ext_sscounterenw), =20 RISCV_PROFILE_EXT_LIST_END } diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c index bc3c45b11704..b93df1725a79 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