From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony Liguori Subject: Re: [RFT] kvm with Windows optimization Date: Mon, 29 Oct 2007 08:29:06 -0500 Message-ID: <4725E022.6070202@codemonkey.ws> References: <4720D122.4070606@qumranet.com> <4720E023.8050804@codemonkey.ws> <10EA09EFD8728347A513008B6B0DA77A0248295E@pdsmsx411.ccr.corp.intel.com> <4721F4DC.2010501@codemonkey.ws> <10EA09EFD8728347A513008B6B0DA77A024CE569@pdsmsx411.ccr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel , Avi Kivity To: "Dong, Eddie" Return-path: In-Reply-To: <10EA09EFD8728347A513008B6B0DA77A024CE569-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org Dong, Eddie wrote: > Anthony Liguori wrote: > >> Dong, Eddie wrote: >> >>>> BTW, is it wise to enable this by default for all guests? >>>> Ignoring the >>>> fact that we're modifying guest's memory without its knowledge, if a >>>> guest unmaps the VA mappings for the BIOS then all sorts of >>>> problems could occur. >>>> >>>> >>>> >>> Good movement! >>> >>> But, Vista won't work with patching. The memory guard in vista >>> will make the system refuse to service. Maybe we need a option to >>> check if it is vista. >>> >>> >> FWIW, I successfully installed and booted Vista Enterprise Edition >> with the TPR optimization patch. >> >> > 32 bits or 64 bits? > See > http://blogs.msdn.com/windowsvistasecurity/archive/2006/08/11/695993.asp > x > > It says: > > There are many brand new security features in Windows Vista, but Kernel > Patch Protection is actually not one of them. Kernel Patch Protection > was first supported on x64 (AMD64 and Intel EMT64T) CPU architecture > versions of Microsoft Windows including Microsoft Windows Server 2003 > SP1 and Windows XP Microsoft Windows XP Professional x64 Edition. (Patch > protection is currently not supported on x86 or ia64 architectures.) > Though, as the use of 64-bit computers is increasing, Windows Vista > users will end up benefiting most from this technology. > > Seems Vista 32 is not using patchguard yet, not sure about next SP. > If above is true, it looks like we are OK for current stage. > thx,eddie > I tested 32-bit Vista. We'll have to try 64-bit Vista and see if it gets upset. Regards, Anthony Liguori ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/