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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id w13sm37838852wrr.67.2020.06.26.08.15.34 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Jun 2020 08:15:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=uTu7OHovsUuRycqX60tPTOf1KxCYgUCqmiTf0JQrhhE=; b=colkzIorq2oOsFQbS+gxoXgnDw0KuD3gCQI5SgWoj3LD1r6nBUFjLf4YdKsjnsS6YW JlE4+0EgreKWXcimb1LN3CFwOBFnIbCW99+6ByD18f6IG/yyv8CZsTHPCEq8cFwpI9V+ dMeZ1C0RuB5i7sNwRJyQRzm5D3h84gqWMyDhfc5SzJRRAUICufJO1vDPi3FeqSHqqjac um3+U6xDcTANHvtBhk59KuiPsHeTTzWT/rT6XDREqETaSoLc/yQjW68btc6e20hmVjvh JcxKpv8izdoAOyBa5oqM2FQW2D9I/V1rmc66dtUkNDsuXhvmUDxnF01VvGZ/VGTuhqfZ 2Afw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=uTu7OHovsUuRycqX60tPTOf1KxCYgUCqmiTf0JQrhhE=; b=JA+IIIgMdAq0lYBSxSMZ8cXUfCU2P5EXoG/cGZ1kHT/DT43nwCIbAP1loewQByPR5t gqrNtVRSlNwSmuP7alydZolnUcYtla/Hser9CQyFxWTv6Z9JG4L2809VAepDldT1fPZ+ NluXib6jZ4Nb01Zxbu4EWgC//DeVUbOXHY1Np9jaxhBM2dlg9gmuf/boYYZkhxQZK6Q7 HmDyOfG+KPZtbiUivGGLq8UoBSNO/UBBh99Jazr1MK7uDGWxcoM6lCGmQE5WPzpmMU1I 68iNBGO4XaToS0AVVovlIrox2HpKwaeLNX30SJKy+XURM+w4MRAOYJaM9SeRMDDsxZrl 2gOw== X-Gm-Message-State: AOAM5323VFEG+Z2j8jla3BM58GWAuuVBsSQsCBwp/7so7qwDKXw+zlJm zzXe6tpzMFWOyGjGCu80zTLLiGJK0ZeQcA== X-Google-Smtp-Source: ABdhPJzP9Wz11R466OpgQIj+Twe84ndMwp38eWxzz+tZBSdy3rGUaD7D+rkBFx6M5GxEy1NATLu0GA== X-Received: by 2002:adf:f885:: with SMTP id u5mr4225800wrp.402.1593184536129; Fri, 26 Jun 2020 08:15:36 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 57/57] target/arm: Enable MTE Date: Fri, 26 Jun 2020 16:14:24 +0100 Message-Id: <20200626151424.30117-58-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200626151424.30117-1-peter.maydell@linaro.org> References: <20200626151424.30117-1-peter.maydell@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=2a00:1450:4864:20::442; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x442.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=_AUTOLEARN 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) Content-Type: text/plain; charset="utf-8" From: Richard Henderson We now implement all of the components of MTE, without actually supporting any tagged memory. All MTE instructions will work, trivially, so we can enable support. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-id: 20200626033144.790098-46-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- target/arm/cpu64.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index a0c1d8894b7..a2f4733eed6 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -654,6 +654,11 @@ static void aarch64_max_initfn(Object *obj) =20 t =3D cpu->isar.id_aa64pfr1; t =3D FIELD_DP64(t, ID_AA64PFR1, BT, 1); + /* + * Begin with full support for MTE; will be downgraded to MTE=3D1 + * during realize if the board provides no tag memory. + */ + t =3D FIELD_DP64(t, ID_AA64PFR1, MTE, 2); cpu->isar.id_aa64pfr1 =3D t; =20 t =3D cpu->isar.id_aa64mmfr1; --=20 2.20.1