From nobody Mon Feb 9 16:54:00 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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=1610444586; cv=none; d=zohomail.com; s=zohoarc; b=AzOGIwNzXWUE1VxfbcapoCbMr4WHngLoC76oNFTrnnY4AiC81v//0ygg/eRS/vP5Tly9PJtQULENF/8jNrzvQxwrPfF+g0VXtsyobP/aDZs+mjTlAmKb0lylF9dS0XVu04GJhB4QC2cJidv0zdrDqwEEgxlebWqo6oL3T4EKST4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1610444586; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=hQEmfK2mjoKViE0Mico8qOyhYGfBsHKCdOM7kVbAmdE=; b=hRGUgzg1tVuuhmOqoFb+4q1EVV3PZWVl002ocgKUX8qzzTPPRXeztd3UbPbymwaFm21UvXc27EQ5Jr0P+j3dgefjDVc7N0prm0SgFMiAo0ZeQDu77maE4AOmRIjiGTq9+cSZU+QP9qHxJA8dn8yy3lXiptnMO4aeblu8AAs68UU= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; 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 1610444586447207.66274283315613; Tue, 12 Jan 2021 01:43:06 -0800 (PST) Received: from localhost ([::1]:43930 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kzGCf-0004wt-BQ for importer@patchew.org; Tue, 12 Jan 2021 04:43:05 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:36664) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kzGAC-0002l5-LT for qemu-devel@nongnu.org; Tue, 12 Jan 2021 04:40:32 -0500 Received: from mail-pj1-x1029.google.com ([2607:f8b0:4864:20::1029]:54899) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kzGA2-0006xA-1A for qemu-devel@nongnu.org; Tue, 12 Jan 2021 04:40:29 -0500 Received: by mail-pj1-x1029.google.com with SMTP id cq1so1065763pjb.4 for ; Tue, 12 Jan 2021 01:40:18 -0800 (PST) Received: from frankchang-ThinkPad-T490.internal.sifive.com (114-34-229-221.HINET-IP.hinet.net. [114.34.229.221]) by smtp.gmail.com with ESMTPSA id h16sm2865664pgd.62.2021.01.12.01.40.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Jan 2021 01:40:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=hQEmfK2mjoKViE0Mico8qOyhYGfBsHKCdOM7kVbAmdE=; b=V5HynIdAOWAdRkelQHEIXCd0q+u7BjUdCQMEVyVAcElNneDgg4cRjbwEEQIhuq+mZG QaCynKSPLhKAnk7WwWNiFqGjR5N6TKzFbhXHVvKxh+jNDvU804g1ul+5w1bgLkdegSY4 KowsEl4omZQAI876wNYul5KV+u5AqZz1ZsGHFTP6kcuiu+WOt4Kc5b9b9lLenrwvakv1 NICWdP/C1P1iN17shCphej63fpbW/QN1eZwwihMr7F8lWln/z5+Jmp4dBHK86B4RP1Td c2hIS4bg6195R1hkcHbipwkJjc83VFZ8esCy7wHufzq1xcTsDntrx8ljuopz7DCnMU2Q oHcA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=hQEmfK2mjoKViE0Mico8qOyhYGfBsHKCdOM7kVbAmdE=; b=QA3IlCRar0u5RUF4k0HdZHhw8omewLibBlMXoKMetKSDsOasUybKkug/7NsPIXGX82 DDSI9gQUdUAkanszuD7Hc9OsQfgkNYJ7fP+5vevxwSJGSjEkMoJ/lvYT2xPHpiW84eTF veMU0BVRnd8sUd+2bSzbvoldsQDhglHN1fANSe+HSpVabL3rvlETEaNj6P55kRX3S3Ms qnzhsbGr6Zc+/GrveFUoHlGlIc0A/rB1MFcnjgNApRWGwOy0rwm0Zgj1xOgrnIMX6Y2G ectzbHXy24vCLobI5nXbaPpidciySK4oaWNqZ5xgseYrRP/wEUJhsadoR4KSYKsr0Kmz DJZQ== X-Gm-Message-State: AOAM531kmvs89VthKauMALidlV6DwqoFTfhZWgAB61OKbCM+tWzf4xoM OmdNl2JRvnKH9nQTeIs+sjceOkOlg5hSB5r0 X-Google-Smtp-Source: ABdhPJzls1Wvm6loxQNLGah9NnMA0q1wm22aiuWHZ9o1m8TpBcd2PCG2OOD3dj7kEi9aE5UK26Tv4w== X-Received: by 2002:a17:90b:346:: with SMTP id fh6mr3643596pjb.225.1610444417653; Tue, 12 Jan 2021 01:40:17 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v6 05/72] target/riscv: rvv-1.0: introduce writable misa.v field Date: Tue, 12 Jan 2021 17:38:39 +0800 Message-Id: <20210112093950.17530-6-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210112093950.17530-1-frank.chang@sifive.com> References: <20210112093950.17530-1-frank.chang@sifive.com> 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::1029; envelope-from=frank.chang@sifive.com; helo=mail-pj1-x1029.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 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: Frank Chang , Alistair Francis , Palmer Dabbelt , Sagar Karandikar , Bastian Koppelmann Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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 Reviewed-by: Richard Henderson Reviewed-by: Alistair Francis --- target/riscv/csr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index a70a78386da..c8b1e4954ec 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -579,7 +579,7 @@ static int write_misa(CPURISCVState *env, int csrno, ta= rget_ulong val) val &=3D env->misa_mask; =20 /* Mask extensions that are not supported by QEMU */ - val &=3D (RVI | RVE | RVM | RVA | RVF | RVD | RVC | RVS | RVU); + val &=3D (RVI | RVE | RVM | RVA | RVF | RVD | RVC | RVS | RVU | RVV); =20 /* 'D' depends on 'F', so clear 'D' if 'F' is not present */ if ((val & RVD) && !(val & RVF)) { --=20 2.17.1