From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marcelo Tosatti Subject: Re: [PATCH 0/4] Lightweight svm vmload/vmsave (almost) Date: Fri, 22 Oct 2010 13:41:48 -0200 Message-ID: <20101022154148.GA25095@amt.cnet> References: <1287656434-3880-1-git-send-email-avi@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kvm@vger.kernel.org To: Avi Kivity Return-path: Received: from mx1.redhat.com ([209.132.183.28]:51167 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755362Ab0JVPmI (ORCPT ); Fri, 22 Oct 2010 11:42:08 -0400 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o9MFg8IO027498 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Fri, 22 Oct 2010 11:42:08 -0400 Content-Disposition: inline In-Reply-To: <1287656434-3880-1-git-send-email-avi@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On Thu, Oct 21, 2010 at 12:20:30PM +0200, Avi Kivity wrote: > This patchset moves svm towards a lightweight vmload/vmsave path. It was > hindered by CVE-2010-3698 which was discovered during its development, and > by the lack of per-cpu IDT in Linux, which makes it more or less useless. > However, even so it's a slight improvement, and merging it will reduce the > work needed when we do have per-cpu IDT. > > Avi Kivity (4): > KVM: SVM: Move guest register save out of interrupts disabled section > KVM: SVM: Move svm->host_gs_base into a separate structure > KVM: SVM: Move fs/gs/ldt save/restore to heavyweight exit path > KVM: SVM: Fold save_host_msrs() and load_host_msrs() into their > callers > > arch/x86/kvm/svm.c | 61 +++++++++++++++++++++++----------------------------- > 1 files changed, 27 insertions(+), 34 deletions(-) > Applied, thanks.