From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: kvm smm mode support? Date: Sat, 26 Apr 2014 11:40:16 +0200 Message-ID: <535B7F00.5080803@redhat.com> References: <1398411554.12369.28.camel@nilsson.home.kraxel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: kevin , Laszlo Ersek To: Gerd Hoffmann , kvm-devel Return-path: Received: from mail-ee0-f44.google.com ([74.125.83.44]:56833 "EHLO mail-ee0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751552AbaDZJkS (ORCPT ); Sat, 26 Apr 2014 05:40:18 -0400 Received: by mail-ee0-f44.google.com with SMTP id e49so3351257eek.17 for ; Sat, 26 Apr 2014 02:40:17 -0700 (PDT) In-Reply-To: <1398411554.12369.28.camel@nilsson.home.kraxel.org> Sender: kvm-owner@vger.kernel.org List-ID: Il 25/04/2014 09:39, Gerd Hoffmann ha scritto: > Anyone has plans to add smm support to kvm? No plans, but it should be a Simple Matter Of Programming... A good start would be to write unit tests for SMM that work with QEMU. Too bad we're late, it could have been a nice summer of code project. Paolo > We have two potential use cases meanwhile: > > (1) OVMF could use it to implement the LockBox (storage area the > OS can't tamper with, needed to make secure boot actually secure). > > (2) SeaBIOS considers using a SMM trampoline to switch into 32bit mode > for device drivers. See > http://www.seabios.org/pipermail/seabios/2014-April/007957.html