From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38304) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V2S0i-0000LU-5j for qemu-devel@nongnu.org; Thu, 25 Jul 2013 16:19:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1V2S0h-0005Tw-1f for qemu-devel@nongnu.org; Thu, 25 Jul 2013 16:19:40 -0400 Received: from e28smtp06.in.ibm.com ([122.248.162.6]:34020) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V2S0g-0005St-CZ for qemu-devel@nongnu.org; Thu, 25 Jul 2013 16:19:38 -0400 Received: from /spool/local by e28smtp06.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 26 Jul 2013 01:40:59 +0530 Received: from d28relay02.in.ibm.com (d28relay02.in.ibm.com [9.184.220.59]) by d28dlp02.in.ibm.com (Postfix) with ESMTP id 62E57394002D for ; Fri, 26 Jul 2013 01:49:24 +0530 (IST) Received: from d28av03.in.ibm.com (d28av03.in.ibm.com [9.184.220.65]) by d28relay02.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r6PKKQ5637421178 for ; Fri, 26 Jul 2013 01:50:26 +0530 Received: from d28av03.in.ibm.com (loopback [127.0.0.1]) by d28av03.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r6PKJRxl018023 for ; Fri, 26 Jul 2013 06:19:27 +1000 From: Lei Li Date: Fri, 26 Jul 2013 04:18:12 +0800 Message-Id: <1374783499-2550-6-git-send-email-lilei@linux.vnet.ibm.com> In-Reply-To: <1374783499-2550-1-git-send-email-lilei@linux.vnet.ibm.com> References: <1374783499-2550-1-git-send-email-lilei@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH 05/12] arch_init: introduce ram_save_local() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: aarcange@redhat.com, aliguori@us.ibm.com, Lei Li , quintela@redhat.com, lagarcia@br.ibm.com, pbonzini@redhat.com, rcj@linux.vnet.ibm.com Signed-off-by: Lei Li --- arch_init.c | 32 ++++++++++++++++++++++++++++++++ 1 files changed, 32 insertions(+), 0 deletions(-) diff --git a/arch_init.c b/arch_init.c index a418071..7eeb52f 100644 --- a/arch_init.c +++ b/arch_init.c @@ -757,6 +757,38 @@ static int ram_page_save(QEMUFile *f) return bytes_sent; } +static int ram_save_local(QEMUFile *f, void *opaque) +{ + uint64_t bytes_sent = 0; + uint64_t total_ram_bytes = ram_bytes_total(); + + qemu_mutex_lock_ramlist(); + + while (total_ram_bytes) { + void *ram; + MemoryRegion *mr; + + bytes_sent = ram_page_save(f); + /* No more ram pages. */ + if (bytes_sent == 0) { + return bytes_sent; + } + + mr = last_block_local->mr; + ram = memory_region_get_ram_ptr(mr) + last_offset_local; + + /* DONTNEED the ram page that has already copied. */ + qemu_madvise(ram, bytes_sent, QEMU_MADV_DONTNEED); + total_ram_bytes -= bytes_sent; + } + + qemu_mutex_unlock_ramlist(); + + qemu_put_be64(f, RAM_SAVE_FLAG_EOS); + + return bytes_sent; +} + static int load_xbzrle(QEMUFile *f, ram_addr_t addr, void *host) { int ret, rc = 0; -- 1.7.7.6