|  |  | 
  
    |  |  | 
 
  |   |  | 
  
    |  |  | 
  
    |  |  | 
  
    |   xen-users
[Xen-users] Re: Merge Xen (the hypervisor) into Linux 
| To: | Ingo Molnar <mingo@xxxxxxx> |  
| Subject: | [Xen-users] Re: Merge Xen (the hypervisor) into Linux |  
| From: | "Chris Friesen" <cfriesen@xxxxxxxxxx> |  
| Date: | Wed, 03 Jun 2009 11:31:13 -0600 |  
| Cc: | "npiggin@xxxxxxx" <npiggin@xxxxxxx>, "jeremy@xxxxxxxx" <jeremy@xxxxxxxx>,	"xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>,	"wimcoekaerts@xxxxxxxxxxxx" <wimcoekaerts@xxxxxxxxxxxx>,	"gregkh@xxxxxxx" <gregkh@xxxxxxx>,	George Dunlap <george.dunlap@xxxxxxxxxxxxx>,	"kurt.hackel@xxxxxxxxxx" <kurt.hackel@xxxxxxxxxx>,	"x86@xxxxxxxxxx" <x86@xxxxxxxxxx>,	Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>,	Steven Rostedt <rostedt@xxxxxxxxxxx>,	"linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>,	"xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>,	Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx>,	Stephen Spector <stephen.spector@xxxxxxxxxx>,	"avi@xxxxxxxxxx" <avi@xxxxxxxxxx>,	"EAnderson@xxxxxxxxxx" <EAnderson@xxxxxxxxxx>,	"jens.axboe@xxxxxxxxxx" <jens.axboe@xxxxxxxxxx>,	ksrinivasan <ksrinivasan@xxxxxxxxxx>,	"torvalds@xxxxxxxxxxxxxxxxxxxx" <torvalds@xxxxxxxxxxxxxxxxxxxx>,	David Miller <davem@xxxxxxxxxxxxx>, Keir Fraser <Keir.Fraser@xxxxxxxxxxxxx> |  
| Delivery-date: | Thu, 04 Jun 2009 02:13:15 -0700 |  
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxxx |  
| In-reply-to: | <20090602232843.GA6577@xxxxxxx> |  
| List-help: | <mailto:xen-users-request@lists.xensource.com?subject=help> |  
| List-id: | Xen user discussion <xen-users.lists.xensource.com> |  
| List-post: | <mailto:xen-users@lists.xensource.com> |  
| List-subscribe: | <http://lists.xensource.com/mailman/listinfo/xen-users>,	<mailto:xen-users-request@lists.xensource.com?subject=subscribe> |  
| List-unsubscribe: | <http://lists.xensource.com/mailman/listinfo/xen-users>,	<mailto:xen-users-request@lists.xensource.com?subject=unsubscribe> |  
| References: | <162f4c90-6431-4a2a-b337-6d7451d7b11e@default>	<20090528001350.GD26820@xxxxxxx> <4A1F302E.8030501@xxxxxxxx>	<20090528.210559.137121893.davem@xxxxxxxxxxxxx>	<4A1FCE8E.2060604@xxxxxxxxxxxxx>	<20090602224051.GB32428@xxxxxxxxxxx>	<20090602232843.GA6577@xxxxxxx> |  
| Sender: | xen-users-bounces@xxxxxxxxxxxxxxxxxxx |  
| User-agent: | Mozilla Thunderbird 1.0.2-6 (X11/20050513) |  
| Ingo Molnar wrote:
> A lot of Xen legacies could be dropped: the crazy ring1 hack on 
> 32-bit, the various wide interfaces to make pure-software 
> virtualization limp along. All major CPUs shipped with hardware 
> virtualization support in the past 2-3 years, so the availability of 
> VMX and SVM can be taken for granted for such a project.
That's a pretty bold statement.  I have five x86 machines in my house
currently being used, and none of them support VMX/SVM.
At least some Lenovo laptops disable VMX in the BIOS with no way to
enable it.  Some of the Core2Duo chips don't support VMX at all.
I think Xen without paravirtualization would be a serious degradation of
usefulness.
Chris
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
 | 
 
| <Prev in Thread] | Current Thread | [Next in Thread> |  | 
[Xen-users] Re: Merge Xen (the hypervisor) into Linux, (continued)
[Xen-users] Re: Merge Xen (the hypervisor) into Linux, Gerd Hoffmann
[Xen-users] Re: Merge Xen (the hypervisor) into Linux, Alan Cox
[Xen-users] Re: Merge Xen (the hypervisor) into Linux, Gerd Hoffmann
[Xen-users] Re: Merge Xen (the hypervisor) into Linux, Keir Fraser
[Xen-users] Re: Merge Xen (the hypervisor) into Linux, Theodore Tso
[Xen-users] Re: Merge Xen (the hypervisor) into Linux, Keir Fraser
[Xen-users] Re: Merge Xen (the hypervisor) into Linux, Gerd Hoffmann
[Xen-users] Re: Merge Xen (the hypervisor) into Linux,
Chris Friesen <=
[Xen-users] Re: Merge Xen (the hypervisor) into Linux, Alan Cox
 |  |  | 
  
    |  |  |