PVOID MiMapPageToZeroInHyperSpace( IN PFN_NUMBER PageFrameIndex ); Routine Description: This procedure maps the specified physical page into hyper space and returns the virtual address which maps the page. NOTE: it maps it into the same location reserved for zeroing operations. This is only to be used by the zeroing page thread. Arguments: PageFrameIndex - Supplies the physical page number to map. Return Value: Returns the virtual address where the specified physical page was mapped. Environment: Must be holding the PFN lock.