Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751392AbdIMRXn (ORCPT ); Wed, 13 Sep 2017 13:23:43 -0400 Received: from mail-wm0-f65.google.com ([74.125.82.65]:35314 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751063AbdIMRXm (ORCPT ); Wed, 13 Sep 2017 13:23:42 -0400 X-Google-Smtp-Source: ADKCNb7MCligNG525yImCyr97gJQAoOY713hyav2zU9sBLhU4OxNcsAIidAjvQ+4uo89qM65LDsN1w== Subject: Re: [PATCH] KVM: VMX: require virtual NMI support To: Paolo Bonzini , linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: rkrcmar@redhat.com Newsgroups: gmane.linux.kernel,gmane.comp.emulators.kvm.devel References: <1490618297-10581-2-git-send-email-pbonzini@redhat.com> From: Zdenek Kaspar Message-ID: <37c3939f-6c5e-1f88-5642-a5efb3ece1c4@gmail.com> Date: Wed, 13 Sep 2017 19:23:37 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 MIME-Version: 1.0 In-Reply-To: <1490618297-10581-2-git-send-email-pbonzini@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 492 Lines: 13 On 03/27/2017 02:38 PM, Paolo Bonzini wrote: > Virtual NMIs are only missing in Prescott and Yonah chips. Both are obsolete > for virtualization usage---Yonah is 32-bit only even---so drop vNMI emulation. > > Signed-off-by: Paolo Bonzini > --- > arch/x86/kvm/vmx.c | 143 ++++++++++++++--------------------------------------- > 1 file changed, 38 insertions(+), 105 deletions(-) This breaks virtualization on old Intel Core2 machines. Any chance to revert? TIA, Z.