From patchwork Tue Jul 10 06:06:28 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: junyan.he@gmx.com X-Patchwork-Id: 10516123 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id CB412603D7 for ; Tue, 10 Jul 2018 06:08:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B9FCA28BBE for ; Tue, 10 Jul 2018 06:08:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AE4EF28BC9; Tue, 10 Jul 2018 06:08:10 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,FREEMAIL_FROM, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5291128BBE for ; Tue, 10 Jul 2018 06:08:10 +0000 (UTC) Received: from localhost ([::1]:45918 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fclon-0000HI-Ge for patchwork-qemu-devel@patchwork.kernel.org; Tue, 10 Jul 2018 02:08:09 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45324) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fclnU-0007p7-KX for qemu-devel@nongnu.org; Tue, 10 Jul 2018 02:06:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fclnT-0007MU-Sl for qemu-devel@nongnu.org; Tue, 10 Jul 2018 02:06:48 -0400 Received: from mga01.intel.com ([192.55.52.88]:23582) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fclnT-0007HY-Ir for qemu-devel@nongnu.org; Tue, 10 Jul 2018 02:06:47 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 09 Jul 2018 23:06:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,333,1526367600"; d="scan'208";a="63525932" Received: from natrouter.sh.intel.com (HELO robinhe-hp.domain) ([10.239.13.3]) by FMSMGA003.fm.intel.com with ESMTP; 09 Jul 2018 23:06:45 -0700 From: junyan.he@gmx.com To: qemu-devel@nongnu.org Date: Tue, 10 Jul 2018 14:06:28 +0800 Message-Id: <1531202789-31006-7-git-send-email-junyan.he@gmx.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1531202789-31006-1-git-send-email-junyan.he@gmx.com> References: <1531202789-31006-1-git-send-email-junyan.he@gmx.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 192.55.52.88 Subject: [Qemu-devel] [PATCH 6/7 V8] migration/ram: Add check and info message to nvdimm post copy. X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: xiaoguangrong.eric@gmail.com, crosthwaite.peter@gmail.com, mst@redhat.com, dgilbert@redhat.com, ehabkost@redhat.com, quintela@redhat.com, Junyan He , stefanha@redhat.com, pbonzini@redhat.com, imammedo@redhat.com, rth@twiddle.net Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Junyan He The nvdimm kind memory does not support post copy now. We disable post copy if we have nvdimm memory and print some log hint to user. Signed-off-by: Junyan He Reviewed-by: Stefan Hajnoczi Reviewed-by: Igor Mammedov --- migration/ram.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/migration/ram.c b/migration/ram.c index 1cd98d6..9c03e2b 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -3895,6 +3895,15 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id) static bool ram_has_postcopy(void *opaque) { + RAMBlock *rb; + RAMBLOCK_FOREACH(rb) { + if (ramblock_is_pmem(rb)) { + info_report("Block: %s, host: %p is a nvdimm memory, postcopy" + "is not supported now!", rb->idstr, rb->host); + return false; + } + } + return migrate_postcopy_ram(); }