From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932300AbbJMM75 (ORCPT ); Tue, 13 Oct 2015 08:59:57 -0400 Received: from mail-wi0-f178.google.com ([209.85.212.178]:35823 "EHLO mail-wi0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752552AbbJMM74 (ORCPT ); Tue, 13 Oct 2015 08:59:56 -0400 Subject: Re: [PATCH 0/2] KVM: x86: fix deliver of SMIs to halted VCPUs To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org References: <1444732448-9112-1-git-send-email-pbonzini@redhat.com> Cc: rkrcmar@redhat.com, lersek@redhat.com From: Paolo Bonzini Message-ID: <561D0047.7020608@redhat.com> Date: Tue, 13 Oct 2015 14:59:51 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <1444732448-9112-1-git-send-email-pbonzini@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 13/10/2015 12:34, Paolo Bonzini wrote: > While SeaBIOS only uses synchronous SMI delivery through port 0xb2, > OVMF also uses APIC delivery, and it is buggy. > > This is enough to run OVMF with SMM enabled and multiple processors, > up to a UEFI shell, but it literally takes minutes to get there. > However, the same behavior is visible with KVM disabled, so it may > be a firmware bug instead. Which it was. :) http://permalink.gmane.org/gmane.comp.bios.edk2.devel/2899 Paolo