Xen devel - Oct 2007 - Mapping (potentially) non-contiguous physical pages to virtual addresses under windows

If I understand correctly, GNTTABOP_setup_table fills in an array with
the PFN''s of the frames that the hypervisor is using to hold the grant
table entries. There is nothing I can see that says that these PFN''s
are
contiguous, so I suppose I have to assume that they aren''t...

I can''t seem to see a Windows DDK call that says "here''s
some PFN''s,
please map them and give me the starting address"... is anyone familiar
enough with Windows to offer some advice?

Thanks

James



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Cancel that. Looking through the Linux ''unmodified-drivers''
code the
grant table stuff is done a little differently in a HVM domain, so the
problem I was having goes away.

James
> -----Original Message-----
> From: xen-devel-bounces@lists.xensource.com [mailto:xen-devel-
> bounces@lists.xensource.com] On Behalf Of James Harper
> Sent: Thursday, 25 October 2007 21:29
> To: xen-devel@lists.xensource.com
> Subject: [Xen-devel] Mapping (potentially) non-contiguous physical
pages
> tovirtual addresses under windows
> 
> If I understand correctly, GNTTABOP_setup_table fills in an array with
> the PFN''s of the frames that the hypervisor is using to hold the
grant
> table entries. There is nothing I can see that says that these
PFN''s
are
> contiguous, so I suppose I have to assume that they aren''t...
> 
> I can''t seem to see a Windows DDK call that says
"here''s some PFN''s,
> please map them and give me the starting address"... is anyone
familiar
> enough with Windows to offer some advice?
> 
> Thanks
> 
> James
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