[Xen-devel] xc_translate_foreign_address() returns mfn??

["Jun Koi" <junkoi2004@xxxxxxxxx>]

Hi,

I looked at the function xc_translate_foreign_address(), and see that
it walks the page table of the guest VM. So at best, it should return
the pfn of the guest (?)

We can see taht the Later part of the function is like this:
...
        if (pt_levels >= 3)
            mfn = (pte & L0_PAGETABLE_MASK_PAE) >> PAGE_SHIFT;
        else
            mfn = (pte & L0_PAGETABLE_MASK) >> PAGE_SHIFT;
..
return mfn;

So perhaps I miss something, but the "mfn" here should be "pfn", so
this function should return pfn, not mfn as in the comment of
xenctrl.h.

This makes me very confused now.

Thanks,
Jun

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