[Xen-devel] how to use void free_xenheap_pages(void *v, unsigned int order) ? what does the order mean?

[yandong han <toyandong@xxxxxxxxx>]

hi, all

    I used alloc_xenheap_page()  to allocate  a page of  memory,  then I should  free it.

but  I donnt know   what  the order  mean? can anyone give me an example?

comm->shared_page_ptr = alloc_xenheap_page();

comm->shared_page_mfn = virt_to_mfn(comm->shared_page_ptr);

page = mfn_to_page(comm->shared_page_mfn);

share_xen_page_with_privileged_guests(page, XENSHARE_writable);

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Best Regards,

yandong

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