From patchwork Fri Feb 13 15:49:59 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Igor Mammedov X-Patchwork-Id: 5825741 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id BBC6B9F39D for ; Fri, 13 Feb 2015 15:50:40 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 17A9020254 for ; Fri, 13 Feb 2015 15:50:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 357B52021F for ; Fri, 13 Feb 2015 15:50:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753412AbbBMPuJ (ORCPT ); Fri, 13 Feb 2015 10:50:09 -0500 Received: from mx1.redhat.com ([209.132.183.28]:27436 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752848AbbBMPuI (ORCPT ); Fri, 13 Feb 2015 10:50:08 -0500 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id t1DFo8hM017234 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 13 Feb 2015 10:50:08 -0500 Received: from dell-pet610-01.lab.eng.brq.redhat.com (dell-pet610-01.lab.eng.brq.redhat.com [10.34.42.20]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t1DFo62J008445; Fri, 13 Feb 2015 10:50:07 -0500 From: Igor Mammedov To: linux-kernel@vger.kernel.org Cc: mst@redhat.com, kvm@vger.kernel.org, netdev@vger.kernel.org, pbonzini@redhat.com Subject: [PATCH] vhost: support upto 509 memory regions Date: Fri, 13 Feb 2015 15:49:59 +0000 Message-Id: <1423842599-5174-1-git-send-email-imammedo@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP since commit 1d4e7e3 kvm: x86: increase user memory slots to 509 it became possible to use a bigger amount of memory slots, which is used by memory hotplug for registering hotplugged memory. However QEMU aborts if it's used with more than ~60 pc-dimm devices and vhost-net since host kernel in module vhost-net refuses to accept more than 65 memory regions. Increasing VHOST_MEMORY_MAX_NREGIONS from 65 to 509 to match KVM_USER_MEM_SLOTS fixes issue for vhost-net. Signed-off-by: Igor Mammedov --- drivers/vhost/vhost.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 2ee2826..ecbd7a4 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -29,7 +29,7 @@ #include "vhost.h" enum { - VHOST_MEMORY_MAX_NREGIONS = 64, + VHOST_MEMORY_MAX_NREGIONS = 509, VHOST_MEMORY_F_LOG = 0x1, };