From patchwork Thu Jan 11 13:37:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 859142 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 3zHSDj5VPyz9s8J for ; Fri, 12 Jan 2018 00:59:49 +1100 (AEDT) Received: from localhost ([::1]:44973 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eZdOV-0000nZ-Uj for incoming@patchwork.ozlabs.org; Thu, 11 Jan 2018 08:59:47 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52206) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eZd42-0007Sp-GQ for qemu-devel@nongnu.org; Thu, 11 Jan 2018 08:38:39 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eZd41-000084-N7 for qemu-devel@nongnu.org; Thu, 11 Jan 2018 08:38:38 -0500 Received: from orth.archaic.org.uk ([2001:8b0:1d0::2]:45844) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eZd41-0008UD-BN for qemu-devel@nongnu.org; Thu, 11 Jan 2018 08:38:37 -0500 Received: from pm215 by orth.archaic.org.uk with local (Exim 4.89) (envelope-from ) id 1eZd3o-0005b5-Gi for qemu-devel@nongnu.org; Thu, 11 Jan 2018 13:38:24 +0000 From: Peter Maydell To: qemu-devel@nongnu.org Date: Thu, 11 Jan 2018 13:37:57 +0000 Message-Id: <1515677902-23436-2-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1515677902-23436-1-git-send-email-peter.maydell@linaro.org> References: <1515677902-23436-1-git-send-email-peter.maydell@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2001:8b0:1d0::2 Subject: [Qemu-devel] [PULL 01/26] linux-user: Add support for big-endian aarch64 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 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" From: Michael Weiser Enable big-endian mode for data accesses on aarch64 for big-endian linux user mode. Activate it for all exception levels as documented by ARM: Set the SCTLR EE bit for ELs 1 through 3. Additionally set bit E0E in EL1 to enable it in EL0 as well. Signed-off-by: Michael Weiser Reviewed-by: Richard Henderson Message-id: 20171220212308.12614-2-michael.weiser@gmx.de Signed-off-by: Peter Maydell --- linux-user/main.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/linux-user/main.c b/linux-user/main.c index 99a551b..450eb3c 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -4629,6 +4629,12 @@ int main(int argc, char **argv, char **envp) } env->pc = regs->pc; env->xregs[31] = regs->sp; +#ifdef TARGET_WORDS_BIGENDIAN + env->cp15.sctlr_el[1] |= SCTLR_E0E; + for (i = 1; i < 4; ++i) { + env->cp15.sctlr_el[i] |= SCTLR_EE; + } +#endif } #elif defined(TARGET_ARM) {