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SubjectRe: pte_page
mdaljeet@in.ibm.com wrote:
>
> I use the 'pgt_offset', 'pmd_offset', 'pte_offset' and 'pte_page' inside a
> module to get the physical address of a user space virtual address. The
> physical address returned by 'pte_page' is not page aligned whereas the
> virtual address was page aligned. Can somebody tell me the reason?
>
> Also, can i use these functions to get the physical address of a kernel
> virtual address using init_mm?

pte_page() returns the struct page * for the page, not the page
address. To get the physical address of a page use __pa(virtaddr), but
this works if and only if the page is not highmem and not vmalloced.

--

Brian Gerst
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