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2007 Oct 16
8
Xeno Linux never pins L1 tables ?
hi,
I''m developing my own 32-bit (no PAE) paravirtualized kernel for xen with
Mini-OS as a starting point. I am currently working on process page table
support (equivalent of arch/i386/mm/pgtable-xen.c) and mostly following
Linux for the moment. I noticed that linux-2.6.18-xen never pins an L1 table
(a pte), yet __pgd_pin() walks the page directory and gives up write access
on the kernel