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([122.255.60.245]) by smtp.gmail.com with ESMTPSA id c17-20020a170903235100b0016bdf53b303sm6700529plh.205.2022.07.06.01.29.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Jul 2022 01:29:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=H9uf8O4CUiqyVcmvjic8DcvLpWT2fCMJa8CUUeRGTi0=; b=aOGczq1tt/UVP71V0gMVKd0nMKXqN+C/p5LVs6C9iwibSN388/y4P1lP67oi3eqniB 6m9H2voeLZcxd5AUURcXYyTanWYVRhZDkFDKWB+/R1+qIeDmO/35TIQMQ/tSEX9/oz86 YfM7ddoMNyYyFIn3z8hnvJwf3xBiFWUYgbkMT/WR/WiJgQC43GsJdBoibkVEimdJSDHB KZ4VzI1zDuA6PjpbHDZQYAfqpJ99wmC/dQ5Mr4TVbjsIdLOtPnDf7GOmviG3HhzjEN9A GN6rTXIvf0H6ofBTl+AcxMLezzkjmdRJP3l60bV2ok4cvzZgkL7RRj/sGYwa4BMDIohD vHoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=H9uf8O4CUiqyVcmvjic8DcvLpWT2fCMJa8CUUeRGTi0=; b=DG9vK+hzz6giq4eaGSbP3Vr7Onfk4Ntw8UK6+k8P0R8vgAulgtQdBvUVQB6Yx/VuvG UaiCKimW/L5vhFQDU6gkgnOdbg4r0vqlEiCy9BL8yhh1vMZI4D/Kfg+8UpRBWj13+wdJ pX8dJDnUAZqOd0WyVY5OKj/pUvSzlEyiB7y/upOfrVUX8nrz/G3SZmR6JUQCL/1VQZxM 4Q7wb1xNWkWb3ykG40yroSlKi76niNrDX3T3mPRGhuHG2hgVd9sfZlKrEm4yfF6FmhY+ ugumj+oxM8O3VFltdpu1N3AIgsNVLc96pdnvEvWBt9a8dPVA+AwM7LsSMnQpNag6QopO jAkA== X-Gm-Message-State: AJIora9vR9EMhegJfU903SDsJjMRFisvlnSBUSXC9gPWI0yAPaelDl8C FBio5HH23QmORzsar+/u0JawBHrTwQgkvyxb X-Google-Smtp-Source: AGRyM1t/B2hrKwXSG+0PeUKwunKXBSZZ3Z/FUrbIC0Gx+NoNNVSrI5HHRJ9e0UEUUCswOvujhJWfrA== X-Received: by 2002:a05:6a00:2356:b0:525:7c6e:1dca with SMTP id j22-20020a056a00235600b005257c6e1dcamr45796713pfj.28.1657096156221; Wed, 06 Jul 2022 01:29:16 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, Peter Maydell Subject: [PATCH v5 43/45] target/arm: Only set ZEN in reset if SVE present Date: Wed, 6 Jul 2022 13:54:09 +0530 Message-Id: <20220706082411.1664825-44-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220706082411.1664825-1-richard.henderson@linaro.org> References: <20220706082411.1664825-1-richard.henderson@linaro.org> 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::42b; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42b.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" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1657102097769100001 Content-Type: text/plain; charset="utf-8" There's no reason to set CPACR_EL1.ZEN if SVE disabled. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/cpu.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 9c58be8b14..9b54443843 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -204,11 +204,10 @@ static void arm_cpu_reset(DeviceState *dev) /* and to the FP/Neon instructions */ env->cp15.cpacr_el1 =3D FIELD_DP64(env->cp15.cpacr_el1, CPACR_EL1, FPEN, 3); - /* and to the SVE instructions */ - env->cp15.cpacr_el1 =3D FIELD_DP64(env->cp15.cpacr_el1, - CPACR_EL1, ZEN, 3); - /* with reasonable vector length */ + /* and to the SVE instructions, with default vector length */ if (cpu_isar_feature(aa64_sve, cpu)) { + env->cp15.cpacr_el1 =3D FIELD_DP64(env->cp15.cpacr_el1, + CPACR_EL1, ZEN, 3); env->vfp.zcr_el[1] =3D cpu->sve_default_vq - 1; } /* --=20 2.34.1