adrian.l.shaw at gmail
Jun 26, 2012, 6:32 AM
Post #4 of 4
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Re: Virtual address to physical mapping in Stubdomain
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Thank you so much Ian. That was the exact file I needed.
Hope this helps others in the future with the same issue.
Regards,
Adrian
On Tue, Jun 26, 2012 at 11:47 AM, Ian Campbell <Ian.Campbell [at] citrix>wrote:
> On Tue, 2012-06-26 at 10:04 +0100, Adrian Shaw wrote:
> > Dear all,
> >
> >
> > Firstly I apologise for what may be a fairly simple question, but
> > after spending a few days on this I really need the help of an expert.
> > I'm developing a stubdomain based on Mini-OS and I'm trying to convert
> > the virtual address of a shared memory page to a machine frame number.
> > I would have thought this requires an #include <xen/page.h> library,
> > but it is not available however.
> > I have found instances of page.h in architecture specific directories,
> > but I'm not quite sure whether they are meant to be directly used.
> > Did it get moved?
> > Most other libraries I've used seemed to be easily available with an
> > include like <xen/foo.h>.
> > If you have any ideas about where I may be having a problem, I'd
> > greatly appreciate it.
>
> virtual => physical (or machine) mapping is a function of the guest
> (e.g. mini-os in this case) not the hypervisor, so you'd need to be
> looking in the mini-os headers not the xen ones.
>
> Have a look in extras/mini-os/include/x86/arch_mm.h -- it very likely
> has the function you want.
>
> Ian.
>
>
>
>
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