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[122.116.72.36]) by smtp.gmail.com with ESMTPSA id v8sm6003950pgg.58.2020.09.29.12.05.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Sep 2020 12:05:28 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC v5 05/68] target/riscv: rvv-1.0: introduce writable misa.v field Date: Wed, 30 Sep 2020 03:03:40 +0800 Message-Id: <20200929190448.31116-6-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200929190448.31116-1-frank.chang@sifive.com> References: <20200929190448.31116-1-frank.chang@sifive.com> Received-SPF: pass client-ip=2607:f8b0:4864:20::1041; envelope-from=frank.chang@sifive.com; helo=mail-pj1-x1041.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=unavailable 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" 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 --- 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 05aca3243b..9292ee9963 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -552,7 +552,7 @@ static int write_misa(CPURISCVState *env, int csrno, target_ulong val) val &= env->misa_mask; /* Mask extensions that are not supported by QEMU */ - val &= (RVI | RVE | RVM | RVA | RVF | RVD | RVC | RVS | RVU); + val &= (RVI | RVE | RVM | RVA | RVF | RVD | RVC | RVS | RVU | RVV); /* 'D' depends on 'F', so clear 'D' if 'F' is not present */ if ((val & RVD) && !(val & RVF)) { -- 2.17.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.90_1) id 1kNKwU-0002XM-QJ for mharc-qemu-riscv@gnu.org; Tue, 29 Sep 2020 15:05:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43226) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kNKwR-0002RE-N1 for qemu-riscv@nongnu.org; Tue, 29 Sep 2020 15:05:35 -0400 Received: from mail-pj1-x1043.google.com ([2607:f8b0:4864:20::1043]:37244) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kNKwM-0001hv-N4 for qemu-riscv@nongnu.org; Tue, 29 Sep 2020 15:05:35 -0400 Received: by mail-pj1-x1043.google.com with SMTP id kk9so3178524pjb.2 for ; Tue, 29 Sep 2020 12:05:29 -0700 (PDT) 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=9ud1EfWIelJCR3RcWsXtUItZIZfuEp3IhOO9JAvYEDs=; b=F7LSCfHi+SGSx3bUvgb2j5nMSKhMEk8WXzJWRiAjIYKjpFZWu+Ex+kKyvS8yJs/MMI cR7uVCfCMnBO7mZo+YqHeXiTJguoXuolmJe4wmCo1KR0L0RFurYRbOw13QLn2YznvnoH TUYsnfB/9TFGXxP6YSmsFZn2su/T3NzEItEKaWXlnLIRxJm63NfiFwxfie+B63WkTAPL 9zkk3/v1EejBTRU5fNNikm1TwsMx0B17jrblwPFBMjphV55lztYH94CUmHr/hQh9LJ58 Gmy6QcxG2iPYRf3x5gdxbMAMuIOolu/KMLjUOk3bSVSIUJQmJOoBTEKqPSdllgFrSG71 SGLw== 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=9ud1EfWIelJCR3RcWsXtUItZIZfuEp3IhOO9JAvYEDs=; b=PNzx154yrxJ7VM7PJQOG3D5xp2dn0q0Rhpjr8fDBmx12Gmi+peTukyJHPO3O8QVWYX 1zY3wHsyDFPA9fZ08Xge5QUKIZ4sci1mutTE/+p+7RMWrCEXpWBRSkavHMZJFe2tS5UT elnIBPYX5z1u5qU8hfzEaxXCjLiidAt741LkCLTr93KfW/+kJTpzNljrFtAkoMRMD4tS 7PHzgPFNFacC5D7z3pPO7pxOYFa6EYJ76lhzeSBOm0p+NgMOUDrdVct533uz9fXGyiOB q7AYyFPIhMYA0knbITHz99y+ABozP2o0XwCnIcKYFtFIv9M/ka5sQpfybXOq0AIkuw3W tunw== X-Gm-Message-State: AOAM533dfb3dmP+931HzCk11bgm0QEUrKt34CZSHBCM3MRYvTA+uR/ZC EHQuS61C195rZo0MRNNt2BIFRQ== X-Google-Smtp-Source: ABdhPJzcvRztNHPSE3d/SFCF3SQpUTuNJaAwVwU2+4XZqDbqT3gqZWF224FakcKDSEu14xlsyLivZw== X-Received: by 2002:a17:90b:30cd:: with SMTP id hi13mr5254213pjb.82.1601406328574; Tue, 29 Sep 2020 12:05:28 -0700 (PDT) Received: from localhost.localdomain (122-116-72-36.HINET-IP.hinet.net. [122.116.72.36]) by smtp.gmail.com with ESMTPSA id v8sm6003950pgg.58.2020.09.29.12.05.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Sep 2020 12:05:28 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Cc: Frank Chang , Palmer Dabbelt , Alistair Francis , Sagar Karandikar , Bastian Koppelmann Subject: [RFC v5 05/68] target/riscv: rvv-1.0: introduce writable misa.v field Date: Wed, 30 Sep 2020 03:03:40 +0800 Message-Id: <20200929190448.31116-6-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200929190448.31116-1-frank.chang@sifive.com> References: <20200929190448.31116-1-frank.chang@sifive.com> Received-SPF: pass client-ip=2607:f8b0:4864:20::1043; envelope-from=frank.chang@sifive.com; helo=mail-pj1-x1043.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-riscv@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Sep 2020 19:05:36 -0000 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 --- 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 05aca3243b..9292ee9963 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -552,7 +552,7 @@ static int write_misa(CPURISCVState *env, int csrno, target_ulong val) val &= env->misa_mask; /* Mask extensions that are not supported by QEMU */ - val &= (RVI | RVE | RVM | RVA | RVF | RVD | RVC | RVS | RVU); + val &= (RVI | RVE | RVM | RVA | RVF | RVD | RVC | RVS | RVU | RVV); /* 'D' depends on 'F', so clear 'D' if 'F' is not present */ if ((val & RVD) && !(val & RVF)) { -- 2.17.1