From patchwork Fri Jun 12 22:45:55 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aurelien Jarno X-Patchwork-Id: 483785 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 228B01402B4 for ; Sat, 13 Jun 2015 08:48:49 +1000 (AEST) Received: from localhost ([::1]:54162 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z3Xkl-00029V-4e for incoming@patchwork.ozlabs.org; Fri, 12 Jun 2015 18:48:47 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44347) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z3XiQ-0005s2-L5 for qemu-devel@nongnu.org; Fri, 12 Jun 2015 18:46:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z3XiO-0004fR-DV for qemu-devel@nongnu.org; Fri, 12 Jun 2015 18:46:22 -0400 Received: from hall.aurel32.net ([2001:bc8:30d7:101::1]:35115) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z3XiO-0004e3-7m for qemu-devel@nongnu.org; Fri, 12 Jun 2015 18:46:20 -0400 Received: from weber.rr44.fr ([2001:470:d4ed:0:7e05:7ff:fe0d:f152]) by hall.aurel32.net with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84) (envelope-from ) id 1Z3XiD-0003pv-K1; Sat, 13 Jun 2015 00:46:10 +0200 Received: from aurel32 by weber.rr44.fr with local (Exim 4.85) (envelope-from ) id 1Z3XiB-0004MU-Gn; Sat, 13 Jun 2015 00:46:07 +0200 From: Aurelien Jarno To: qemu-devel@nongnu.org Date: Sat, 13 Jun 2015 00:45:55 +0200 Message-Id: <1434149163-16639-8-git-send-email-aurelien@aurel32.net> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1434149163-16639-1-git-send-email-aurelien@aurel32.net> References: <1434149163-16639-1-git-send-email-aurelien@aurel32.net> X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:bc8:30d7:101::1 Cc: Alexander Graf , Aurelien Jarno , Richard Henderson Subject: [Qemu-devel] [PATCH 07/15] 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 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. Cc: Alexander Graf Cc: Richard Henderson Signed-off-by: Aurelien Jarno --- target-s390x/cpu.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h index 86ee650..da60eba 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