From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161142AbbEEJiH (ORCPT ); Tue, 5 May 2015 05:38:07 -0400 Received: from mx1.redhat.com ([209.132.183.28]:46463 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752171AbbEEJiC (ORCPT ); Tue, 5 May 2015 05:38:02 -0400 Message-ID: <55488F72.4030101@redhat.com> Date: Tue, 05 May 2015 11:37:54 +0200 From: Paolo Bonzini User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 MIME-Version: 1.0 To: =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= CC: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, bsd@redhat.com, guangrong.xiao@linux.intel.com, Yang Zhang , wanpeng.li@linux.intel.com Subject: Re: [PATCH 08/13] KVM: x86: stubs for SMM support References: <1430393772-27208-1-git-send-email-pbonzini@redhat.com> <1430393772-27208-9-git-send-email-pbonzini@redhat.com> <20150504175102.GC11234@potion.brq.redhat.com> In-Reply-To: <20150504175102.GC11234@potion.brq.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 04/05/2015 19:51, Radim Krčmář wrote: > (I'm not sure if this is supported if IA32_VMX_BASIC[49] = 0. > 34.15.6.4 Saving Guest State > The SMM-transfer monitor (STM) can also discover the current value of > the SMBASE register by using the RDMSR > > but it's not possible to get into STM without having a support for it > noted in IA32_VMX_BASIC[49] and more magic we also don't emulate to > actually enable it.) I can certainly make the SMBASE MSR host-accessible only. Paolo