From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marcelo Tosatti Subject: Re: [PATCH 0/5] Fix some mmu/emulator atomicity issues (v2) Date: Tue, 16 Mar 2010 13:36:49 -0300 Message-ID: <20100316163649.GA9718@amt.cnet> References: <1268654397-6650-1-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]:10694 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966173Ab0CPR5L (ORCPT ); Tue, 16 Mar 2010 13:57:11 -0400 Received: from int-mx05.intmail.prod.int.phx2.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.18]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o2GHvA9K026929 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Tue, 16 Mar 2010 13:57:11 -0400 Content-Disposition: inline In-Reply-To: <1268654397-6650-1-git-send-email-avi@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On Mon, Mar 15, 2010 at 01:59:52PM +0200, Avi Kivity wrote: > Currently when we emulate a locked operation into a shadowed guest page > table, we perform a write rather than a true atomic. This is indicated > by the "emulating exchange as write" message that shows up in dmesg. > > In addition, the pte prefetch operation during invlpg suffered from a > race. This was fixed by removing the operation. > > This patchset fixes both issues and reinstates pte prefetch on invlpg. > > v3: > - rebase against next branch (resolves conflicts via hypercall patch) > > v2: > - fix truncated description for patch 1 > - add new patch 4, which fixes a bug in patch 5 Applied, thanks.