From patchwork Wed Oct 28 22:26:16 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiao Guangrong X-Patchwork-Id: 537382 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 34C4A140E31 for ; Thu, 29 Oct 2015 01:43:51 +1100 (AEDT) Received: from localhost ([::1]:38419 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZrRx6-0007EX-TA for incoming@patchwork.ozlabs.org; Wed, 28 Oct 2015 10:43:48 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54793) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZrRmI-0005aB-Ps for qemu-devel@nongnu.org; Wed, 28 Oct 2015 10:32:39 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZrRmE-0002Sx-VS for qemu-devel@nongnu.org; Wed, 28 Oct 2015 10:32:38 -0400 Received: from mga01.intel.com ([192.55.52.88]:15622) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZrRmE-00028A-R7 for qemu-devel@nongnu.org; Wed, 28 Oct 2015 10:32:34 -0400 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga101.fm.intel.com with ESMTP; 28 Oct 2015 07:32:32 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,210,1444719600"; d="scan'208";a="589668361" Received: from xiaoreal1.sh.intel.com (HELO xiaoreal1.sh.intel.com.sh.intel.com) ([10.239.48.79]) by FMSMGA003.fm.intel.com with ESMTP; 28 Oct 2015 07:32:30 -0700 From: Xiao Guangrong To: pbonzini@redhat.com, imammedo@redhat.com Date: Wed, 28 Oct 2015 22:26:16 +0000 Message-Id: <1446071191-62591-19-git-send-email-guangrong.xiao@linux.intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1446071191-62591-1-git-send-email-guangrong.xiao@linux.intel.com> References: <1446071191-62591-1-git-send-email-guangrong.xiao@linux.intel.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 192.55.52.88 Cc: Xiao Guangrong , ehabkost@redhat.com, kvm@vger.kernel.org, mst@redhat.com, gleb@kernel.org, mtosatti@redhat.com, qemu-devel@nongnu.org, stefanha@redhat.com, dan.j.williams@intel.com, rth@twiddle.net Subject: [Qemu-devel] [PATCH v5 18/33] dimm: get mapped memory region from DIMMDeviceClass->get_memory_region 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 Curretly, the memory region of backed memory is directly mapped to guest's address space, however, it is not true for nvdimm device This patch let dimm device realize this fact and use DIMMDeviceClass->get_memory_region method to get the mapped memory region Signed-off-by: Xiao Guangrong --- hw/mem/dimm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/mem/dimm.c b/hw/mem/dimm.c index 23d5daa..9e0403a 100644 --- a/hw/mem/dimm.c +++ b/hw/mem/dimm.c @@ -380,8 +380,9 @@ static void dimm_get_size(Object *obj, Visitor *v, void *opaque, int64_t value; MemoryRegion *mr; DIMMDevice *dimm = DIMM(obj); + DIMMDeviceClass *ddc = DIMM_GET_CLASS(obj); - mr = host_memory_backend_get_memory(dimm->hostmem, errp); + mr = ddc->get_memory_region(dimm); value = memory_region_size(mr); visit_type_int(v, &value, name, errp);