From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tim Deegan <Tim.Deegan@citrix.com>
Subject: Re: where is writable page table implemented?
Date: Mon, 24 Mar 2008 16:25:10 +0000
Message-ID: <20080324162510.GD30315@york.uk.xensource.com>
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To: weiming <zephyr.zhao@gmail.com>
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At 12:18 -0400 on 24 Mar (1206361139), weiming wrote:
> Hi,
> 
> I want to read the code about the implementation of writable page table. But
> I can't find it in the source codes.

xen/arch/x86/mm.c, the functions after the comment "Writable Pagetables"
(ptwr_*)

The guest is responsible for revoking write access to its own
pagetables, but that is checked by the recursive pagetable walk started
by the MMUEXT_PIN_* hypercall.

Cheers,

Tim.

-- 
Tim Deegan <Tim.Deegan@citrix.com>
Principal Software Engineer, Citrix Systems (R&D) Ltd.
[Company #02300071, SL9 0DZ, UK.]