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Re: [Xen-devel] write page table in user mode

To: "Su, Disheng" <disheng.su@xxxxxxxxx>, Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Subject: Re: [Xen-devel] write page table in user mode
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Sat, 02 Feb 2008 10:30:56 +0000
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It should be safe, but I don't know how much it would affect performance (it
depends on how much we are actually relying on it as an unshadowing
heuristic).

 -- Keir

On 1/2/08 18:28, "Su, Disheng" <disheng.su@xxxxxxxxx> wrote:

> Hi,
> I found vmware workstation 5 in xen will write page table in
> user mode. I don't know the rational behind this...
> XEN doesn't emulate writing page table in user mode. If I get
> rid of this constraint, vmware will go a little bit further.
> Is it safe to remove this constraint?
> 
> Best Regards,
> Disheng, Su
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel



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