From nobody Thu Oct 30 15:20:10 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1525918496960161.65467016812863; Wed, 9 May 2018 19:14:56 -0700 (PDT) Received: from localhost ([::1]:59795 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fGb6Z-00081C-9n for importer@patchew.org; Wed, 09 May 2018 22:14:51 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37326) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fGb1a-0003W9-0v for qemu-devel@nongnu.org; Wed, 09 May 2018 22:09:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fGb1Z-0006qA-3e for qemu-devel@nongnu.org; Wed, 09 May 2018 22:09:42 -0400 Received: from mga01.intel.com ([192.55.52.88]:24344) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fGb1Y-0006fc-Qa for qemu-devel@nongnu.org; Wed, 09 May 2018 22:09:41 -0400 Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 09 May 2018 19:09:40 -0700 Received: from robinhe-hp.sh.intel.com ([10.239.198.47]) by orsmga007.jf.intel.com with ESMTP; 09 May 2018 19:09:37 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,383,1520924400"; d="scan'208";a="39787384" From: junyan.he@gmx.com To: qemu-devel@nongnu.org Date: Thu, 10 May 2018 10:08:58 +0800 Message-Id: <1525918138-6189-10-git-send-email-junyan.he@gmx.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1525918138-6189-1-git-send-email-junyan.he@gmx.com> References: <1525918138-6189-1-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 9/9 V5] 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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 --- migration/ram.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/migration/ram.c b/migration/ram.c index afe227e..aa6bb74 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -3120,6 +3120,15 @@ static int ram_load(QEMUFile *f, void *opaque, int v= ersion_id) =20 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(); } =20 --=20 2.7.4