From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760316AbbA3JTu (ORCPT ); Fri, 30 Jan 2015 04:19:50 -0500 Received: from mail-wi0-f176.google.com ([209.85.212.176]:38841 "EHLO mail-wi0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752162AbbA3JTs (ORCPT ); Fri, 30 Jan 2015 04:19:48 -0500 Message-ID: <54CB4CAE.2080200@redhat.com> Date: Fri, 30 Jan 2015 10:19:42 +0100 From: Paolo Bonzini User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= , linux-kernel@vger.kernel.org CC: kvm@vger.kernel.org, Nadav Amit , Gleb Natapov Subject: Re: [PATCH 7/8] KVM: x86: avoid logical_map when it is invalid References: <1422568135-28402-1-git-send-email-rkrcmar@redhat.com> <1422568135-28402-8-git-send-email-rkrcmar@redhat.com> In-Reply-To: <1422568135-28402-8-git-send-email-rkrcmar@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 29/01/2015 22:48, Radim Krčmář wrote: > We want to support mixed modes and the easiest solution is to avoid > optimizing those weird and unlikely scenarios. Hmm, what happens if use maxcpus to disable some CPUs at startup? Could the disabled CPUs remain in xapic mode while the others move to x2apic? Paolo