* Running a VM with more than 4GB?
@ 2009-10-24 18:09 Tom Rotenberg
2009-10-24 18:20 ` Keir Fraser
0 siblings, 1 reply; 4+ messages in thread
From: Tom Rotenberg @ 2009-10-24 18:09 UTC (permalink / raw)
To: xen-devel
Hi,
Is it possible to run a VM on top of Xen with RAM >= 4gb? This should
cause all the iomem of the devices (both virtual & PT devices) to be
in addresses above 4gb, which means that it will be addresses of
64-bit.
Does the latest Xen (and/or Xen 3.4) support this?
Tom
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Running a VM with more than 4GB?
2009-10-24 18:09 Running a VM with more than 4GB? Tom Rotenberg
@ 2009-10-24 18:20 ` Keir Fraser
2009-10-24 18:54 ` Tom Rotenberg
0 siblings, 1 reply; 4+ messages in thread
From: Keir Fraser @ 2009-10-24 18:20 UTC (permalink / raw)
To: Tom Rotenberg, xen-devel@lists.xensource.com
On 24/10/2009 19:09, "Tom Rotenberg" <tom.rotenberg@gmail.com> wrote:
> Is it possible to run a VM on top of Xen with RAM >= 4gb? This should
> cause all the iomem of the devices (both virtual & PT devices) to be
> in addresses above 4gb, which means that it will be addresses of
> 64-bit.
> Does the latest Xen (and/or Xen 3.4) support this?
Yes, it works. Iomem is placed just below 4gb and the RAM that would appear
there is shifted up above 4GB, just like on a real machine.
-- Keir
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Running a VM with more than 4GB?
2009-10-24 18:20 ` Keir Fraser
@ 2009-10-24 18:54 ` Tom Rotenberg
2009-10-26 14:15 ` Konrad Rzeszutek Wilk
0 siblings, 1 reply; 4+ messages in thread
From: Tom Rotenberg @ 2009-10-24 18:54 UTC (permalink / raw)
To: Keir Fraser; +Cc: xen-devel@lists.xensource.com
Sounds great... so, it should work out of the box, right?
(I still haven't tested it, as i need to get me a physical machine
with enough amount of RAM)
On Sat, Oct 24, 2009 at 8:20 PM, Keir Fraser <keir.fraser@eu.citrix.com> wrote:
> On 24/10/2009 19:09, "Tom Rotenberg" <tom.rotenberg@gmail.com> wrote:
>
>> Is it possible to run a VM on top of Xen with RAM >= 4gb? This should
>> cause all the iomem of the devices (both virtual & PT devices) to be
>> in addresses above 4gb, which means that it will be addresses of
>> 64-bit.
>> Does the latest Xen (and/or Xen 3.4) support this?
>
> Yes, it works. Iomem is placed just below 4gb and the RAM that would appear
> there is shifted up above 4GB, just like on a real machine.
>
> -- Keir
>
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Running a VM with more than 4GB?
2009-10-24 18:54 ` Tom Rotenberg
@ 2009-10-26 14:15 ` Konrad Rzeszutek Wilk
0 siblings, 0 replies; 4+ messages in thread
From: Konrad Rzeszutek Wilk @ 2009-10-26 14:15 UTC (permalink / raw)
To: Tom Rotenberg; +Cc: xen-devel@lists.xensource.com, Keir Fraser
On Sat, Oct 24, 2009 at 08:54:32PM +0200, Tom Rotenberg wrote:
> Sounds great... so, it should work out of the box, right?
Correct. Thought if you do find problems, please CC me on them.
> (I still haven't tested it, as i need to get me a physical machine
> with enough amount of RAM)
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2009-10-26 14:15 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-10-24 18:09 Running a VM with more than 4GB? Tom Rotenberg
2009-10-24 18:20 ` Keir Fraser
2009-10-24 18:54 ` Tom Rotenberg
2009-10-26 14:15 ` Konrad Rzeszutek Wilk
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.