From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753593AbbFQIyJ (ORCPT ); Wed, 17 Jun 2015 04:54:09 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45575 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752132AbbFQIx6 (ORCPT ); Wed, 17 Jun 2015 04:53:58 -0400 Message-ID: <558135A2.5050808@redhat.com> Date: Wed, 17 Jun 2015 10:53:54 +0200 From: Paolo Bonzini User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: "Michael S. Tsirkin" , Igor Mammedov CC: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Subject: Re: [PATCH 3/5] vhost: support upto 509 memory regions References: <1434472419-148742-1-git-send-email-imammedo@redhat.com> <1434472419-148742-4-git-send-email-imammedo@redhat.com> <20150616231201-mutt-send-email-mst@redhat.com> <20150617000056.481e4a96@igors-macbook-pro.local> <20150617083202-mutt-send-email-mst@redhat.com> In-Reply-To: <20150617083202-mutt-send-email-mst@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 17/06/2015 08:34, Michael S. Tsirkin wrote: >>> > > >>> > > Also - 509? >> > userspace memory slots in terms of KVM, I made it match >> > KVM's allotment of memory slots for userspace side. > Maybe KVM has its reasons for this #. Nice power of two (512) - number of reserved slots required by Intel's virtualization extensions (3: APIC access page, EPT identity page table, VMX task state segment). Paolo I don't see > why we need to match this exactly. >