From nobody Mon Feb 9 07:05:44 2026 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 1531202925471733.5509223886504; Mon, 9 Jul 2018 23:08:45 -0700 (PDT) Received: from localhost ([::1]:45918 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fclpI-0000HI-9v for importer@patchew.org; Tue, 10 Jul 2018 02:08:40 -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 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 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 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,333,1526367600"; d="scan'208";a="63525932" 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+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 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 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