From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50768) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1frqjW-0001W3-Lp for qemu-devel@nongnu.org; Mon, 20 Aug 2018 16:25:03 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1frqjU-00008O-Ss for qemu-devel@nongnu.org; Mon, 20 Aug 2018 16:25:02 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:53452 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1frqjU-000076-2t for qemu-devel@nongnu.org; Mon, 20 Aug 2018 16:25:00 -0400 Date: Mon, 20 Aug 2018 23:24:54 +0300 From: "Michael S. Tsirkin" Message-ID: <20180820104045.133968-7-mst@redhat.com> References: <20180820104045.133968-1-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180820104045.133968-1-mst@redhat.com> Subject: [Qemu-devel] [PULL 6/7] migration/ram: Add check and info message to nvdimm post copy. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Maydell , Junyan He , Stefan Hajnoczi , Igor Mammedov , Juan Quintela , "Dr. David Alan Gilbert" 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 Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- migration/ram.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/migration/ram.c b/migration/ram.c index 24dea2730c..5beefae7f5 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -3906,6 +3906,15 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id) static bool ram_has_postcopy(void *opaque) { + RAMBlock *rb; + RAMBLOCK_FOREACH_MIGRATABLE(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(); } -- MST