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RE: [Xen-users] Xen 3

To: "Eric Masson" <e-masson@xxxxxxxxxxxxxxxxxxx>, "Mark Williamson" <mark.williamson@xxxxxxxxxxxx>
Subject: RE: [Xen-users] Xen 3
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Sun, 29 May 2005 19:57:09 +0100
Cc: Andrew Walrond <andrew@xxxxxxxxxxx>, ian.pratt@xxxxxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx
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Thread-index: AcVi2QB9OjgBSyhLRGa8wTGGhbD/OQBpoSpA
Thread-topic: [Xen-users] Xen 3
 
> Will it be possible to mix 32 and 64 bits domains under 
> control of a 64 bits enabled hypervisor, just like the following :
> - xen + domain0 in 64 bits mode
> - mix of 32/64 bits domainU

No: given that 64 bit domains will support 32 bit user space, there's
not a huge benefit in supporting 32 bit domains on a 64 bit hypervisor
directly. 

We might revisit this decision later, but it certainly isn't a priority,
and would involve a performance penalty anyhow.

Best,
Ian

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