From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Feustel Subject: Re: Zen and Pacifica Date: Mon, 03 Apr 2006 10:26:35 -0500 Message-ID: <200604031026.35836.dfeustel@mindspring.com> References: <907625E08839C4409CE5768403633E0BA7FBA1@sefsexmb1.amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-reply-to: <907625E08839C4409CE5768403633E0BA7FBA1@sefsexmb1.amd.com> Content-disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Monday 03 April 2006 09:33, Petersson, Mats wrote: > > Will 3.0.2 support running unmodified operating systems? > > That's the feature I need to run OpenBSD under Xen. > > Yes, absolutely. However, I must "warn" you that OpenBSD is not on our > "target-list", so it's possible (although somewhat unlikely) that it > will not work right - every OS has it's own quirks during specific small > sections of code (switch from real to protected mode [particularly code > that "abuses" this switch, like "Big Real-Mode" can cause problems, as > the internal state of the processor and the "apparent state" aren't the > same[1]], page table updates, special IO operations, etc) that may need > some special attention in the hypervisor. Well, I'm not buying a new system until I can get one with the AMD SVR (formerly known as Pacifica) revision F chip version, so there are still a few months to go. Once I have the system, I will get busy trying to run OpenBSD on Xen. I am prepared for xen startup issues with openbsd. > I'm not at all saying "Don't do this", but rather setting your > expectations that it's a small possibility that something is broken. > It's probably not very hard to fix if it is, it just takes someones time > to figure out why it's broken, and how to fix it - usually, it's just a > simple case of another "if (x) do_something_special();" in some > function. And I'd say there's 98% chance that it works just fine as is. > 2% risk that there's a problem... > > Also, there's a few months yet until the second half of this year, so we > may well have fixed all the remaining bugs 'til then... ;-) Patience is a virtue, particularly where AMD is concerned :-). All good things come to those who wait. Good Things Take Time. Dave Feustel > [1] If anyone wants more details on how this works, please fire me a > personal mail... ;-) > > -- > Mats > > > > When is 3.0.2 likely to be released? > > > > Thanks, > > Dave > > > > _______________________________________________ > > Xen-devel mailing list > > Xen-devel@lists.xensource.com > > http://lists.xensource.com/xen-devel > > > > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel > -- Lose, v., experience a loss, get rid of, "lose the weight" Loose, adj., not tight, let go, free, "loose clothing"