From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756786AbbFPQeL (ORCPT ); Tue, 16 Jun 2015 12:34:11 -0400 Received: from mx1.redhat.com ([209.132.183.28]:40674 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756571AbbFPQdr (ORCPT ); Tue, 16 Jun 2015 12:33:47 -0400 From: Igor Mammedov To: linux-kernel@vger.kernel.org Cc: mst@redhat.com, kvm@vger.kernel.org, pbonzini@redhat.com Subject: [PATCH 3/5] vhost: support upto 509 memory regions Date: Tue, 16 Jun 2015 18:33:37 +0200 Message-Id: <1434472419-148742-4-git-send-email-imammedo@redhat.com> In-Reply-To: <1434472419-148742-1-git-send-email-imammedo@redhat.com> References: <1434472419-148742-1-git-send-email-imammedo@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 crashes 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. Increase 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 99931a0..6a18c92 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -30,7 +30,7 @@ #include "vhost.h" enum { - VHOST_MEMORY_MAX_NREGIONS = 64, + VHOST_MEMORY_MAX_NREGIONS = 509, VHOST_MEMORY_F_LOG = 0x1, }; -- 1.8.3.1