Re: [Xen-devel] Page tables in Xen

To:	"Haifeng He" <hehaifeng2nd@xxxxxxxxx>
Subject:	Re: [Xen-devel] Page tables in Xen
From:	weiming <zephyr.zhao@xxxxxxxxx>
Date:	Wed, 28 Nov 2007 09:10:53 -0500
Cc:	xen-devel@xxxxxxxxxxxxxxxxxxx
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In my understanding, in PV, page table is allocated within guest OS, however, every update will go through xen via explicit hypercalls.
in HVM, those update will be intercepted by xen.

Please correct me if I'm wrong.

On Nov 28, 2007 5:49 AM, Haifeng He <hehaifeng2nd@xxxxxxxxx> wrote:

Hi,

I have a question about memory page tables in Xen. As far as I
understood, every modification
to page table will go through Xen(hypervisor). Is it so that all page
tables are actually allocated
in Xen(hypervisor) instead of guest OS(domain)? Also, is it the case
that Xen(hypervisor) needs to
maintain a page table for each process running in every domain?

Thanks

Haifeng

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Re: [Xen-devel] Page tables in Xen