From patchwork Wed Apr 21 05:57:08 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshiaki Tamura X-Patchwork-Id: 93813 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o3L62Lmi005310 for ; Wed, 21 Apr 2010 06:02:38 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752450Ab0DUGC3 (ORCPT ); Wed, 21 Apr 2010 02:02:29 -0400 Received: from sh.osrg.net ([192.16.179.4]:58789 "EHLO sh.osrg.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752116Ab0DUGCD (ORCPT ); Wed, 21 Apr 2010 02:02:03 -0400 Received: from fs.osrg.net (postfix@fs.osrg.net [10.0.0.12]) by sh.osrg.net (8.14.3/8.14.3/OSRG-NET) with ESMTP id o3L61PEH004040; Wed, 21 Apr 2010 15:01:25 +0900 Received: from localhost (hype-wd0.osrg.net [10.72.1.16]) by fs.osrg.net (Postfix) with ESMTP id 17DB93E02F0; Wed, 21 Apr 2010 15:01:25 +0900 (JST) From: Yoshiaki Tamura To: kvm@vger.kernel.org, qemu-devel@nongnu.org Cc: avi@redhat.com, aliguori@us.ibm.com, mtosatti@redhat.com, ohmura.kei@lab.ntt.co.jp, yoshikawa.takuya@oss.ntt.co.jp, Yoshiaki Tamura Subject: [RFC PATCH 03/20] Use cpu_physical_memory_set_dirty_range() to update phys_ram_dirty. Date: Wed, 21 Apr 2010 14:57:08 +0900 Message-Id: <1271829445-5328-4-git-send-email-tamura.yoshiaki@lab.ntt.co.jp> X-Mailer: git-send-email 1.7.0.31.g1df487 In-Reply-To: <1271829445-5328-1-git-send-email-tamura.yoshiaki@lab.ntt.co.jp> References: <1271829445-5328-1-git-send-email-tamura.yoshiaki@lab.ntt.co.jp> X-Dispatcher: imput version 20070423(IM149) Lines: 50 X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Wed, 21 Apr 2010 06:02:39 +0000 (UTC) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (sh.osrg.net [192.16.179.4]); Wed, 21 Apr 2010 15:01:26 +0900 (JST) X-Virus-Scanned: clamav-milter 0.95.3 at sh X-Virus-Status: Clean Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org diff --git a/qemu-kvm.c b/qemu-kvm.c index 29365a9..1414f49 100644 --- a/qemu-kvm.c +++ b/qemu-kvm.c @@ -2323,8 +2323,8 @@ static int kvm_get_dirty_pages_log_range(unsigned long start_addr, unsigned long offset, unsigned long mem_size) { - unsigned int i, j; - unsigned long page_number, addr, addr1, c; + unsigned int i; + unsigned long page_number, addr, addr1; ram_addr_t ram_addr; unsigned int len = ((mem_size / TARGET_PAGE_SIZE) + HOST_LONG_BITS - 1) / HOST_LONG_BITS; @@ -2335,16 +2335,11 @@ static int kvm_get_dirty_pages_log_range(unsigned long start_addr, */ for (i = 0; i < len; i++) { if (bitmap[i] != 0) { - c = leul_to_cpu(bitmap[i]); - do { - j = ffsl(c) - 1; - c &= ~(1ul << j); - page_number = i * HOST_LONG_BITS + j; - addr1 = page_number * TARGET_PAGE_SIZE; - addr = offset + addr1; - ram_addr = cpu_get_physical_page_desc(addr); - cpu_physical_memory_set_dirty(ram_addr); - } while (c != 0); + page_number = i * HOST_LONG_BITS; + addr1 = page_number * TARGET_PAGE_SIZE; + addr = offset + addr1; + ram_addr = cpu_get_physical_page_desc(addr); + cpu_physical_memory_set_dirty_range(ram_addr, leul_to_cpu(bitmap[i])); } } return 0;