[Xen-devel] convert guest va to ma in xen?

To:	xen-devel@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-devel] convert guest va to ma in xen?
From:	"Bryan D. Payne" <bryan@xxxxxxxxxxxx>
Date:	Wed, 24 Oct 2007 23:00:05 -0400
Delivery-date:	Wed, 24 Oct 2007 20:00:49 -0700
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I have a dom0 kernel virtual address in xen.  I'd like to convert it
to a machine address.  What are the best function(s) to use for making
this conversion?  I've tried the code below, but this only seems to
work for hvm guest domains, and not for dom0:

mfn = get_mfn_from_gpfn(shadow_gva_to_gfn(current, vaddr);
maddr = (mfn << PAGE_SHIFT) + (vaddr & ~PAGE_MASK);

Is there equivalent code that will work for virtual addresses from dom0?

Thanks,
bryan


-- 
Bryan D. Payne
Graduate Student, Computer Science
Georgia Tech Information Security Center
http://www.bryanpayne.org

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[Xen-devel] convert guest va to ma in xen?