title: How to get the physical address in macosx kernel for a virtual address for a particular process?
body: <p>I was wondering if there is an existing system call/API for accessing getting the physical address of the virtual address?
  If there is none then some direction on how to get that working ?</p>
  
  <p>Also, how to get the physical address of MMIO which is non-pageable physical memory ?</p>