From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4B51C31E50 for ; Sat, 15 Jun 2019 15:59:42 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 82D6D21473 for ; Sat, 15 Jun 2019 15:59:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 82D6D21473 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:32994 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hcB5h-0001Ad-Mw for qemu-devel@archiver.kernel.org; Sat, 15 Jun 2019 11:59:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35803) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hcAqw-00041t-Qt for qemu-devel@nongnu.org; Sat, 15 Jun 2019 11:44:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hcAqu-0000WW-IM for qemu-devel@nongnu.org; Sat, 15 Jun 2019 11:44:26 -0400 Received: from mx1.redhat.com ([209.132.183.28]:35500) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hcAqp-0000FO-JB; Sat, 15 Jun 2019 11:44:19 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id AEEEC3082E20; Sat, 15 Jun 2019 15:44:18 +0000 (UTC) Received: from x1w.redhat.com (ovpn-204-41.brq.redhat.com [10.40.204.41]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 6DE041001B05; Sat, 15 Jun 2019 15:44:17 +0000 (UTC) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Date: Sat, 15 Jun 2019 17:43:39 +0200 Message-Id: <20190615154352.26824-11-philmd@redhat.com> In-Reply-To: <20190615154352.26824-1-philmd@redhat.com> References: <20190615154352.26824-1-philmd@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.46]); Sat, 15 Jun 2019 15:44:18 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 10/23] target/arm: Move the v7-M Security State helpers to v7m_helper 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: Peter Maydell , qemu-arm@nongnu.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- target/arm/helper.c | 73 ----------------------------------------- target/arm/v7m_helper.c | 73 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 73 insertions(+), 73 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index b4fd9b42d7..cf76010ea1 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -7885,79 +7885,6 @@ void HELPER(v7m_preserve_fp_state)(CPUARMState *en= v) */ } =20 -/* - * Write to v7M CONTROL.SPSEL bit for the specified security bank. - * This may change the current stack pointer between Main and Process - * stack pointers if it is done for the CONTROL register for the current - * security state. - */ -void write_v7m_control_spsel_for_secstate(CPUARMState *env, - bool new_spsel, - bool secstate) -{ - bool old_is_psp =3D v7m_using_psp(env); - - env->v7m.control[secstate] =3D - deposit32(env->v7m.control[secstate], - R_V7M_CONTROL_SPSEL_SHIFT, - R_V7M_CONTROL_SPSEL_LENGTH, new_spsel); - - if (secstate =3D=3D env->v7m.secure) { - bool new_is_psp =3D v7m_using_psp(env); - uint32_t tmp; - - if (old_is_psp !=3D new_is_psp) { - tmp =3D env->v7m.other_sp; - env->v7m.other_sp =3D env->regs[13]; - env->regs[13] =3D tmp; - } - } -} - -/* - * Write to v7M CONTROL.SPSEL bit. This may change the current - * stack pointer between Main and Process stack pointers. - */ -void write_v7m_control_spsel(CPUARMState *env, bool new_spsel) -{ - write_v7m_control_spsel_for_secstate(env, new_spsel, env->v7m.secure= ); -} - -/* Switch M profile security state between NS and S */ -void switch_v7m_security_state(CPUARMState *env, bool new_secstate) -{ - uint32_t new_ss_msp, new_ss_psp; - - if (env->v7m.secure =3D=3D new_secstate) { - return; - } - - /* - * All the banked state is accessed by looking at env->v7m.secure - * except for the stack pointer; rearrange the SP appropriately. - */ - new_ss_msp =3D env->v7m.other_ss_msp; - new_ss_psp =3D env->v7m.other_ss_psp; - - if (v7m_using_psp(env)) { - env->v7m.other_ss_psp =3D env->regs[13]; - env->v7m.other_ss_msp =3D env->v7m.other_sp; - } else { - env->v7m.other_ss_msp =3D env->regs[13]; - env->v7m.other_ss_psp =3D env->v7m.other_sp; - } - - env->v7m.secure =3D new_secstate; - - if (v7m_using_psp(env)) { - env->regs[13] =3D new_ss_psp; - env->v7m.other_sp =3D new_ss_msp; - } else { - env->regs[13] =3D new_ss_msp; - env->v7m.other_sp =3D new_ss_psp; - } -} - static uint32_t *get_v7m_sp_ptr(CPUARMState *env, bool secure, bool thre= admode, bool spsel) { diff --git a/target/arm/v7m_helper.c b/target/arm/v7m_helper.c index 321154966e..558e143039 100644 --- a/target/arm/v7m_helper.c +++ b/target/arm/v7m_helper.c @@ -88,6 +88,79 @@ uint32_t HELPER(v7m_tt)(CPUARMState *env, uint32_t add= r, uint32_t op) =20 #else =20 +/* + * Write to v7M CONTROL.SPSEL bit for the specified security bank. + * This may change the current stack pointer between Main and Process + * stack pointers if it is done for the CONTROL register for the current + * security state. + */ +void write_v7m_control_spsel_for_secstate(CPUARMState *env, + bool new_spsel, + bool secstate) +{ + bool old_is_psp =3D v7m_using_psp(env); + + env->v7m.control[secstate] =3D + deposit32(env->v7m.control[secstate], + R_V7M_CONTROL_SPSEL_SHIFT, + R_V7M_CONTROL_SPSEL_LENGTH, new_spsel); + + if (secstate =3D=3D env->v7m.secure) { + bool new_is_psp =3D v7m_using_psp(env); + uint32_t tmp; + + if (old_is_psp !=3D new_is_psp) { + tmp =3D env->v7m.other_sp; + env->v7m.other_sp =3D env->regs[13]; + env->regs[13] =3D tmp; + } + } +} + +/* + * Write to v7M CONTROL.SPSEL bit. This may change the current + * stack pointer between Main and Process stack pointers. + */ +void write_v7m_control_spsel(CPUARMState *env, bool new_spsel) +{ + write_v7m_control_spsel_for_secstate(env, new_spsel, env->v7m.secure= ); +} + +/* Switch M profile security state between NS and S */ +void switch_v7m_security_state(CPUARMState *env, bool new_secstate) +{ + uint32_t new_ss_msp, new_ss_psp; + + if (env->v7m.secure =3D=3D new_secstate) { + return; + } + + /* + * All the banked state is accessed by looking at env->v7m.secure + * except for the stack pointer; rearrange the SP appropriately. + */ + new_ss_msp =3D env->v7m.other_ss_msp; + new_ss_psp =3D env->v7m.other_ss_psp; + + if (v7m_using_psp(env)) { + env->v7m.other_ss_psp =3D env->regs[13]; + env->v7m.other_ss_msp =3D env->v7m.other_sp; + } else { + env->v7m.other_ss_msp =3D env->regs[13]; + env->v7m.other_ss_psp =3D env->v7m.other_sp; + } + + env->v7m.secure =3D new_secstate; + + if (v7m_using_psp(env)) { + env->regs[13] =3D new_ss_psp; + env->v7m.other_sp =3D new_ss_msp; + } else { + env->regs[13] =3D new_ss_msp; + env->v7m.other_sp =3D new_ss_psp; + } +} + void HELPER(v7m_bxns)(CPUARMState *env, uint32_t dest) { /* --=20 2.20.1