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Re: [Xen-users] xen dom0 32 bits memory is limited to 16GB?

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] xen dom0 32 bits memory is limited to 16GB?
From: Rafał Kupka <rkupka+Listy.Xen@xxxxxxxxxxxxx>
Date: Tue, 29 Apr 2008 15:30:59 +0200
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On Tue, Apr 29, 2008 at 01:08:47PM +0200, Marco Strullato wrote:
Hi,

> I'm reading that xen dom0 32 bits is limited to 16GB of ram (see
> http://www.centos.org/modules/newbb/viewtopic.php?topic_id=12690)
> 
> Is it true? How can I remove this limit?

Yes, that's true. 64-bits Xen hypervisor doesn't have this limit.

You should use:
1) 64bits Xen + 64bits dom0 kernel, userland 64- or 32-bits;
2) 64bits Xen + 32bits dom0 kernel, userland 32bits

Second option requires quite recent Xen and dom0 kernel, but I don't
know exact versions.

Regards,
Kupson
-- 
Great software without the knowledge to run it is pretty useless.
(Linux Gazette #1)

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