title: How can I get address in physical addressing area by pointer in virtual addressing area?
body: <p>If I have an address (pointer) in virtual addressing area of current process to the pinned (page-locked) memory, then how can I get an address (pointer) in physical addressing area, of this memory region, by using POSIX?</p>
  
  <ul>
  <li>CPU: x86</li>
  <li>OS: Linux 2.6 and Windows 7/8(Server 2008R2)</li>
  </ul>