From patchwork Tue May 25 08:36:44 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshiaki Tamura X-Patchwork-Id: 102116 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 o4P8fqma030305 for ; Tue, 25 May 2010 08:41:53 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932089Ab0EYIlv (ORCPT ); Tue, 25 May 2010 04:41:51 -0400 Received: from sh.osrg.net ([192.16.179.4]:34890 "EHLO sh.osrg.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756287Ab0EYIkk (ORCPT ); Tue, 25 May 2010 04:40:40 -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 o4P8eHWl010155; Tue, 25 May 2010 17:40:17 +0900 Received: from localhost (hype-wd0.osrg.net [10.72.1.16]) by fs.osrg.net (Postfix) with ESMTP id A75E53E02FA; Tue, 25 May 2010 17:40:17 +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, Yoshiaki Tamura Subject: [RFC PATCH 03/23] Use cpu_physical_memory_set_dirty_range() to update phys_ram_dirty. Date: Tue, 25 May 2010 17:36:44 +0900 Message-Id: <1274776624-16435-5-git-send-email-tamura.yoshiaki@lab.ntt.co.jp> X-Mailer: git-send-email 1.7.0.31.g1df487 In-Reply-To: <1274776624-16435-1-git-send-email-tamura.yoshiaki@lab.ntt.co.jp> References: <1274776624-16435-1-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]); Tue, 25 May 2010 08:41:53 +0000 (UTC) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (sh.osrg.net [192.16.179.4]); Tue, 25 May 2010 17:40:19 +0900 (JST) X-Virus-Scanned: clamav-milter 0.96 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;