From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH] KVM: VMX: Support Unrestricted Guest feature Date: Tue, 09 Jun 2009 10:55:17 +0300 Message-ID: <4A2E1565.3030903@redhat.com> References: <1244486056-29134-1-git-send-email-nitin.a.kamble@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Nitin A Kamble Return-path: Received: from mx2.redhat.com ([66.187.237.31]:43205 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751635AbZFIHzT (ORCPT ); Tue, 9 Jun 2009 03:55:19 -0400 In-Reply-To: <1244486056-29134-1-git-send-email-nitin.a.kamble@intel.com> Sender: kvm-owner@vger.kernel.org List-ID: Nitin A Kamble wrote: > "Unrestricted Guest" feature is added in the VMX specification. > Intel Westmere and onwards processors will support this feature. > > It allows kvm guests to run real mode and unpaged mode > code natively in the VMX mode when EPT is turned on. With the > unrestricted guest there is no need to emulate the guest real mode code > in the vm86 container or in the emulator. Also the guest big real mode > code works like native. > > The attached patch enhances KVM to use the unrestricted guest feature > if available on the processor. It also adds a new kernel/module > parameter to disable the unrestricted guest feature at the boot time. > > Applied, thanks. -- error compiling committee.c: too many arguments to function