From nobody Fri Oct 10 09:43:11 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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=1604931260; cv=none; d=zohomail.com; s=zohoarc; b=Zqyxe3DjDl24qdsHKQJ5B36t68ZceWeLH9JLP2yX0QELUvzinNgBrR5DbsDzrO2aqBJZ8rU09hMQEEtAOcKac47YcbHjgMmk2HRrDcrv9USmMQjH+XbogirOPptdgj9uoB0ObMtYT/vMkcUEq+mAtORwwmwl14e5tSG2teNVjr4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1604931260; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=U4teBWxBK918BkGXIbOm0FC07WJMn6uDWiKZGpjPyc0=; b=e0go7nomFeuZbQ4hCzhKTKOa4fQTe7jCTh3+5rSYl8YNaab0x0ekSrkusKomSY/pqmOcuAAhYwbIQakD3cD4qFHwqLz2cEDBvr/zpF2OzFEz8CiIf8yT9auNMkQabDh+zZVHoU6h5sU7Pzw0jFUGiIp7qbiSgITX58I30u5d4xw= ARC-Authentication-Results: i=1; mx.zohomail.com; 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 1604931260648914.796552101688; Mon, 9 Nov 2020 06:14:20 -0800 (PST) Received: from localhost ([::1]:50148 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kc7w3-0007Xv-TN for importer@patchew.org; Mon, 09 Nov 2020 09:14:19 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:40282) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kc7sK-000323-Gf; Mon, 09 Nov 2020 09:10:28 -0500 Received: from poy.remlab.net ([2001:41d0:2:5a1a::]:60172 helo=ns207790.ip-94-23-215.eu) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kc7sG-0002kg-3x; Mon, 09 Nov 2020 09:10:28 -0500 Received: from basile.remlab.net (ip6-localhost [IPv6:::1]) by ns207790.ip-94-23-215.eu (Postfix) with ESMTP id 3F5725FE42; Mon, 9 Nov 2020 15:10:21 +0100 (CET) From: remi.denis.courmont@huawei.com To: qemu-arm@nongnu.org Subject: [PATCH 02/17] target/arm: add arm_is_el2_enabled() helper Date: Mon, 9 Nov 2020 16:10:05 +0200 Message-Id: <20201109141020.27234-2-remi.denis.courmont@huawei.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <5554493.MhkbZ0Pkbq@basile.remlab.net> References: <5554493.MhkbZ0Pkbq@basile.remlab.net> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=2001:41d0:2:5a1a::; envelope-from=remi@remlab.net; helo=ns207790.ip-94-23-215.eu X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/09 08:56:07 X-ACL-Warn: Detected OS = ??? X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" From: R=C3=A9mi Denis-Courmont This checks if EL2 is enabled (meaning EL2 registers take effects) in the current security context. Signed-off-by: R=C3=A9mi Denis-Courmont Reviewed-by: Richard Henderson --- target/arm/cpu.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index c18a916766..adaded6bab 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -2040,6 +2040,17 @@ static inline bool arm_is_secure(CPUARMState *env) return arm_is_secure_below_el3(env); } =20 +/* Return true if the current security state has AArch64 EL2 or AArch32 Hy= p. + * This corresponds to the pseudocode EL2Enabled() + */ +static inline bool arm_is_el2_enabled(CPUARMState *env) +{ + if (arm_feature(env, ARM_FEATURE_EL2)) { + return !arm_is_secure_below_el3(env); + } + return false; +} + #else static inline bool arm_is_secure_below_el3(CPUARMState *env) { @@ -2050,6 +2061,11 @@ static inline bool arm_is_secure(CPUARMState *env) { return false; } + +static inline bool arm_is_el2_enabled(CPUARMState *env) +{ + return false; +} #endif =20 /** --=20 2.29.2