From nobody Mon Feb 9 09:22:23 2026 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=1608287998; cv=none; d=zohomail.com; s=zohoarc; b=FxP5IBNtba+rVhRjfiEkKCWmUHsG8i1bLRE7rrgpMqrCZjvhOssOYAE7rrpXM4juyA4Dhwrl7tfHtrKe0ko16afr7DzYnPa6vEgfve3iGl66g2zSy/1jfGMuLPqGeZcvuWYG77WR1xXzBAX6qcYHm04uUA6Ufe1dnHB7RMATdSM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1608287998; 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=Dax2cXVBJa3NOoXgxgMq6eSe8H5SzlKbxcONi6s/ZpI=; b=nieLVQ2nPXsqCNsrmt/QboNzVW3W/HHwSLzrPgsbEApMdEsmROSbvbmicjvExPmpZ7xizZCWnZFQZMIG+0i7lrKk7yVkGbDUMYUM3pSEx9YxHjdNhDijLqDFlpEGdmb3Y27LUNyu0HKUqST5nqcuYwD+q7UlromrsQga62x5IdA= 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 1608287998472233.53637385713103; Fri, 18 Dec 2020 02:39:58 -0800 (PST) Received: from localhost ([::1]:38614 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kqDAz-0008HZ-4x for importer@patchew.org; Fri, 18 Dec 2020 05:39:57 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:46660) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kqD9A-00063c-NV; Fri, 18 Dec 2020 05:38:04 -0500 Received: from poy.remlab.net ([2001:41d0:2:5a1a::]:55278 helo=ns207790.ip-94-23-215.eu) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kqD97-0003IH-8V; Fri, 18 Dec 2020 05:38:02 -0500 Received: from basile.remlab.net (ip6-localhost [IPv6:::1]) by ns207790.ip-94-23-215.eu (Postfix) with ESMTP id 18FBC5FD51; Fri, 18 Dec 2020 11:38:00 +0100 (CET) From: remi.denis.courmont@huawei.com To: qemu-arm@nongnu.org Subject: [PATCH 02/18] target/arm: add arm_is_el2_enabled() helper Date: Fri, 18 Dec 2020 12:37:43 +0200 Message-Id: <20201218103759.19929-2-remi.denis.courmont@huawei.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <3337797.iIbC2pHGDl@basile.remlab.net> References: <3337797.iIbC2pHGDl@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-Spam_score_int: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, 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 | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index 7e6c881a7e..a37ae8eac6 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -2072,6 +2072,18 @@ 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) { @@ -2082,6 +2094,11 @@ 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