From patchwork Wed Feb 3 13:38:37 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 577952 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 1F49D140C7A for ; Thu, 4 Feb 2016 00:55:34 +1100 (AEDT) Received: from localhost ([::1]:35122 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aQxu8-0004Jx-B2 for incoming@patchwork.ozlabs.org; Wed, 03 Feb 2016 08:55:32 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55603) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aQxrh-00007C-0m for qemu-devel@nongnu.org; Wed, 03 Feb 2016 08:53:06 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aQxrg-0006go-2K for qemu-devel@nongnu.org; Wed, 03 Feb 2016 08:53:00 -0500 Received: from mnementh.archaic.org.uk ([2001:8b0:1d0::1]:57188) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aQxrf-0006ga-Rc; Wed, 03 Feb 2016 08:52:59 -0500 Received: from pm215 by mnementh.archaic.org.uk with local (Exim 4.84) (envelope-from ) id 1aQxdq-00035k-68; Wed, 03 Feb 2016 13:38:42 +0000 From: Peter Maydell To: qemu-devel@nongnu.org Date: Wed, 3 Feb 2016 13:38:37 +0000 Message-Id: <1454506721-11843-4-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1454506721-11843-1-git-send-email-peter.maydell@linaro.org> References: <1454506721-11843-1-git-send-email-peter.maydell@linaro.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:8b0:1d0::1 Cc: "Edgar E. Iglesias" , qemu-arm@nongnu.org, patches@linaro.org Subject: [Qemu-devel] [PATCH 3/7] target-arm: Use access_trap_aa32s_el1() for SCR and MVBAR X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org The registers MVBAR and SCR should have the behaviour of trapping to EL3 if accessed from Secure EL1, but we were incorrectly implementing them to UNDEF (which would trap to EL1). Fix this by using the new access_trap_aa32s_el1() access function. Signed-off-by: Peter Maydell Reviewed-by: Alex Bennée Reviewed-by: Edgar E. Iglesias --- target-arm/helper.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/target-arm/helper.c b/target-arm/helper.c index 8b96b80..d85b04f 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -3547,7 +3547,8 @@ static const ARMCPRegInfo el3_cp_reginfo[] = { .resetvalue = 0, .writefn = scr_write }, { .name = "SCR", .type = ARM_CP_ALIAS, .cp = 15, .opc1 = 0, .crn = 1, .crm = 1, .opc2 = 0, - .access = PL3_RW, .fieldoffset = offsetoflow32(CPUARMState, cp15.scr_el3), + .access = PL1_RW, .accessfn = access_trap_aa32s_el1, + .fieldoffset = offsetoflow32(CPUARMState, cp15.scr_el3), .writefn = scr_write }, { .name = "MDCR_EL3", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 3, .opc2 = 1, @@ -3569,7 +3570,8 @@ static const ARMCPRegInfo el3_cp_reginfo[] = { .access = PL3_W | PL1_R, .resetvalue = 0, .fieldoffset = offsetof(CPUARMState, cp15.nsacr) }, { .name = "MVBAR", .cp = 15, .opc1 = 0, .crn = 12, .crm = 0, .opc2 = 1, - .access = PL3_RW, .writefn = vbar_write, .resetvalue = 0, + .access = PL1_RW, .accessfn = access_trap_aa32s_el1, + .writefn = vbar_write, .resetvalue = 0, .fieldoffset = offsetof(CPUARMState, cp15.mvbar) }, { .name = "SCTLR_EL3", .state = ARM_CP_STATE_AA64, .type = ARM_CP_ALIAS, /* reset handled by AArch32 view */