From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gohar Irfan <goharirfan94@gmail.com>
Subject: Page Table Entry Modifications
Date: Tue, 22 Sep 2015 19:35:15 +0000
Message-ID: <CAPe5K8h=vSdjr+pEMM2dUY326Vw56c+bcKgxWRNSfcNSgqigrw@mail.gmail.com>
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Hi All,

I want to know if, in the case of HVM (shadow page tables), we can change
the machine frame number pointed to by a page table entry?
An overly simplified example would be: let's say I have page number 10 that
is pointing to machine frame number 10, but I would like it to point to
machine frame number 1? Can this be achieved inside the "sh_page_fault"
function inside "xen/arch/x86/mm/shadow/multi.c" as this seems like a
relevant place for this modification to me.

Thanks!

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<div dir=3D"ltr">Hi All,<div><br></div><div>I want to know if, in the case =
of HVM (shadow page tables), we can change the machine frame number pointed=
 to by a page table entry?=C2=A0</div><div>An overly simplified example wou=
ld be: let&#39;s say I have page number 10 that is pointing to machine fram=
e number 10, but I would like it to point to machine frame number 1? Can th=
is be achieved inside the &quot;sh_page_fault&quot; function inside &quot;x=
en/arch/x86/mm/shadow/multi.c&quot; as this seems like a relevant place for=
 this modification to me.</div><div><br></div><div>Thanks!</div></div>

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