From patchwork Thu Aug 23 11:02:32 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kiszka X-Patchwork-Id: 179601 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)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id D025B2C00A5 for ; Thu, 23 Aug 2012 21:10:52 +1000 (EST) Received: from localhost ([::1]:56400 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1T4VCC-0007sZ-9O for incoming@patchwork.ozlabs.org; Thu, 23 Aug 2012 07:03:28 -0400 Received: from eggs.gnu.org ([208.118.235.92]:42907) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1T4VBZ-0006b3-SS for qemu-devel@nongnu.org; Thu, 23 Aug 2012 07:02:56 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1T4VBT-0006xB-Vj for qemu-devel@nongnu.org; Thu, 23 Aug 2012 07:02:49 -0400 Received: from goliath.siemens.de ([192.35.17.28]:18393) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1T4VBT-0006wf-Mc for qemu-devel@nongnu.org; Thu, 23 Aug 2012 07:02:43 -0400 Received: from mail1.siemens.de (localhost [127.0.0.1]) by goliath.siemens.de (8.13.6/8.13.6) with ESMTP id q7NB2acq004905; Thu, 23 Aug 2012 13:02:37 +0200 Received: from mchn199C.mchp.siemens.de ([139.25.109.49]) by mail1.siemens.de (8.13.6/8.13.6) with ESMTP id q7NB2ZRa000368; Thu, 23 Aug 2012 13:02:36 +0200 From: Jan Kiszka To: Avi Kivity , Marcelo Tosatti Date: Thu, 23 Aug 2012 13:02:32 +0200 Message-Id: <16a6bb28ec179910f7a865c391a2b211d4069f70.1345719752.git.jan.kiszka@siemens.com> X-Mailer: git-send-email 1.7.3.4 In-Reply-To: References: In-Reply-To: References: X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) X-Received-From: 192.35.17.28 Cc: Anthony Liguori , Liu Ping Fan , qemu-devel , kvm Subject: [Qemu-devel] [PATCH v3 uq/master 4/6] memory: Flush coalesced MMIO on mapping and state changes 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 Flush pending coalesced MMIO before performing mapping or state changes that could affect the event orderings or route the buffered requests to a wrong region. Signed-off-by: Jan Kiszka --- memory.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/memory.c b/memory.c index e29c193..c5bcf45 100644 --- a/memory.c +++ b/memory.c @@ -733,6 +733,7 @@ static void address_space_update_topology(AddressSpace *as) void memory_region_transaction_begin(void) { + qemu_flush_coalesced_mmio_buffer(); ++memory_region_transaction_depth; }