From patchwork Wed Jun 17 10:43:00 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 485342 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id A815B1401DA for ; Wed, 17 Jun 2015 20:54:24 +1000 (AEST) Received: from localhost ([::1]:45634 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z5Az8-0007Zm-ST for incoming@patchwork.ozlabs.org; Wed, 17 Jun 2015 06:54:22 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55677) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z5AoS-0004dd-Fo for qemu-devel@nongnu.org; Wed, 17 Jun 2015 06:43:25 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z5AoK-0005YS-SB for qemu-devel@nongnu.org; Wed, 17 Jun 2015 06:43:20 -0400 Received: from cantor2.suse.de ([195.135.220.15]:52320 helo=mx2.suse.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z5AoK-0005Wm-Mg for qemu-devel@nongnu.org; Wed, 17 Jun 2015 06:43:12 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 0F53B75025; Wed, 17 Jun 2015 10:43:11 +0000 (UTC) From: Alexander Graf To: qemu-devel@nongnu.org Date: Wed, 17 Jun 2015 12:43:00 +0200 Message-Id: <1434537789-63782-18-git-send-email-agraf@suse.de> X-Mailer: git-send-email 1.7.12.4 In-Reply-To: <1434537789-63782-1-git-send-email-agraf@suse.de> References: <1434537789-63782-1-git-send-email-agraf@suse.de> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x (no timestamps) [generic] X-Received-From: 195.135.220.15 Cc: peter.maydell@linaro.org, Aurelien Jarno Subject: [Qemu-devel] [PULL 17/26] target-s390x: add get_per_in_range function 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 From: Aurelien Jarno This function checks if an address is in between the PER starting address and the PER ending address, taking care of a possible address range loop. Signed-off-by: Aurelien Jarno Signed-off-by: Alexander Graf --- target-s390x/cpu.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h index 7cc96e7..d3137be 100644 --- a/target-s390x/cpu.h +++ b/target-s390x/cpu.h @@ -392,6 +392,17 @@ static inline uint8_t get_per_atmid(CPUS390XState *env) ((env->psw.mask & PSW_ASC_ACCREG)? (1 << 2) : 0); } +/* Check if an address is within the PER starting address and the PER + ending address. The address range might loop. */ +static inline bool get_per_in_range(CPUS390XState *env, uint64_t addr) +{ + if (env->cregs[10] <= env->cregs[11]) { + return env->cregs[10] <= addr && addr <= env->cregs[11]; + } else { + return env->cregs[10] <= addr || addr <= env->cregs[11]; + } +} + #ifndef CONFIG_USER_ONLY /* In several cases of runtime exceptions, we havn't recorded the true instruction length. Use these codes when raising exceptions in order