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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41B50C433E0 for ; Thu, 6 Aug 2020 18:09:29 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 892A9206A2 for ; Thu, 6 Aug 2020 18:09:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="EqTYvkSu" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 892A9206A2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:40074 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k3kKW-0005bI-Aw for qemu-devel@archiver.kernel.org; Thu, 06 Aug 2020 14:09:28 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56436) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k3kGE-0001Bh-9m for qemu-devel@nongnu.org; Thu, 06 Aug 2020 14:05:02 -0400 Received: from mail-pl1-x629.google.com ([2607:f8b0:4864:20::629]:45003) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1k3kGC-0006SK-Ni for qemu-devel@nongnu.org; Thu, 06 Aug 2020 14:05:01 -0400 Received: by mail-pl1-x629.google.com with SMTP id w17so28173447ply.11 for ; Thu, 06 Aug 2020 11:05:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=+oJonRURUKUDUwdxnAqYI1jrChZDjkViIux/TCKIeQk=; b=EqTYvkSuthyKtToL+4o+EbxJmlT4GswtfbgX26/SnO5n2dtCLMT3jDUckc+oj8apNR SkzVI1SFMCePBFxrFYVhtKUrDWxLhTU1f3R+oHnVjfmyyU2av84XttGdmP0OnWEpBiFZ k6wFwa9lV/p7kzA2wcBJadgzWVBBx/uRy80tcLbe23Vl5f9j7ISqZlSpOVIzS4E14mMI x9sX5bA954GJHublLAQAgtdTPMZFWLC3R8iOyJGOYomOcfyq+9DrGbnfqlan3JHOBjkr LSe+U0sNdvhD+iF+SVk3/KJyHJSr6TzHDAOgJkmIvRGhrPkJsBA9WYlacoGXnCd0+Jz6 xXfQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=+oJonRURUKUDUwdxnAqYI1jrChZDjkViIux/TCKIeQk=; b=ZOapN0RR8/HpNb5oA//eQOH5+EzQT1x4p9JtMKnmRdyrmlOtpozNyuBxGzmQHmjadj KpFV0NlU4G5lnIQkGkz39q0Y7pvNSsO9Km4rFc2Qa8YuBHzfvod4kLvh+9oMDdyZv7EV UtMBesJyLE78T0qGsuS3HA6V7/G4PtejX2ZvctUCgebLmpDZ2z2gIW0zShgVe+NndhOj e+NMkjTBFwzQIxguQDDg9GaD4wi9JqpZihgledOaqhpZoGZJ7XjkwFENwVdnqjoGN2BW kLoKDor0xnLaF15bbvIYDNSm5Pzvcv7njz/cIdUhvcLTYC5wLAEtMuQL/z2w9n1uQfs4 3OsQ== X-Gm-Message-State: AOAM532/t76t4xkwhNDd+yIIN7Jz7+nzxeMPmJiHCaVvi13QaUc9yAlE diaMoiWZMZNoDnyZAh1wB8PpaA== X-Google-Smtp-Source: ABdhPJwkEHbfJBARNqiDUn7vbLXfLsvlJqUfalUXoPOvqV8kQ/s399RvEdxH7yAI+bIdZxn2Zp8Sfw== X-Received: by 2002:a17:902:b902:: with SMTP id bf2mr9193809plb.100.1596737099007; Thu, 06 Aug 2020 11:04:59 -0700 (PDT) Received: from [192.168.1.11] ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id g9sm8951508pfr.172.2020.08.06.11.04.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 06 Aug 2020 11:04:58 -0700 (PDT) Subject: Re: [RFC v3 05/71] target/riscv: rvv-1.0: introduce writable misa.v field To: frank.chang@sifive.com, qemu-devel@nongnu.org, qemu-riscv@nongnu.org References: <20200806104709.13235-1-frank.chang@sifive.com> <20200806104709.13235-6-frank.chang@sifive.com> From: Richard Henderson Message-ID: <88180ccf-6a24-56e4-0be4-3a27ea452a21@linaro.org> Date: Thu, 6 Aug 2020 11:04:56 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200806104709.13235-6-frank.chang@sifive.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::629; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x629.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Palmer Dabbelt , Alistair Francis , Sagar Karandikar , Bastian Koppelmann Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 8/6/20 3:46 AM, frank.chang@sifive.com wrote: > From: Frank Chang > > Implementations may have a writable misa.v field. Analogous to the way > in which the floating-point unit is handled, the mstatus.vs field may > exist even if misa.v is clear. > > Signed-off-by: Frank Chang > --- > target/riscv/csr.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Reviewed-by: Richard Henderson r~