From mboxrd@z Thu Jan  1 00:00:00 1970
From: Min Lee <min.lee@gatech.edu>
Subject: [Q] mfn_to_gmfn macro, log-dirty bitmap,
Date: Mon, 28 Jun 2010 09:40:59 -0400
Message-ID: <4C28A66B.6080103@gatech.edu>
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Hi, folks.
I'm running 32bit PV-domu on 64bit xen&dom0 and I'm using 
XEN_DOMCTL_SHADOW_OP_PEEK to get log-dirty bitmap.
First, I'm assuming this bitmap is indexed by gmfn, right? because we're 
passing p2m->size parameter to xen.
Second, I have mfn (not gmfn) which I want to translate to gmfn so that I 
can correctly read corresponding bit in log-dirty bitmap. so I've tried 
mfn_to_gmfn() macro below but it doesn't seem to work. (always mfn==gmfn) 
Maybe because m2p table is not enabled?
How can I properly do mfn_to_gmfn?

#define mfn_to_gmfn(_d, mfn)                            \
     ( (paging_mode_translate(_d))                       \
       ? get_gpfn_from_mfn(mfn)                          \
       : (mfn) )


Thanks for any help.
Min