From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56584) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ffhCH-00023Z-6L for qemu-devel@nongnu.org; Wed, 18 Jul 2018 03:48:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ffhCE-0003pE-3I for qemu-devel@nongnu.org; Wed, 18 Jul 2018 03:48:29 -0400 Received: from mga12.intel.com ([192.55.52.136]:63886) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ffhCD-0003XX-Qy for qemu-devel@nongnu.org; Wed, 18 Jul 2018 03:48:26 -0400 From: junyan.he@gmx.com Date: Wed, 18 Jul 2018 15:48:02 +0800 Message-Id: <1531900083-18167-7-git-send-email-junyan.he@gmx.com> In-Reply-To: <1531900083-18167-1-git-send-email-junyan.he@gmx.com> References: <1531900083-18167-1-git-send-email-junyan.he@gmx.com> Subject: [Qemu-devel] [PATCH 6/7 V11] 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: ehabkost@redhat.com, imammedo@redhat.com, pbonzini@redhat.com, crosthwaite.peter@gmail.com, rth@twiddle.net, xiaoguangrong.eric@gmail.com, mst@redhat.com, quintela@redhat.com, dgilbert@redhat.com, stefanha@redhat.com, yi.z.zhang@intel.com, Junyan He 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 52dd678..309b567 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -3899,6 +3899,15 @@ 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(); } -- 2.7.4