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Last modification

• Rev 1855 – 6459 d 3 h
• Author: jermar

• Log message:

  sparc64 work.
  
  Fix bug introduced in revision 1852. When fixing CWP,
  the input registers of the current window (i.e. output
  registers of the window belonging to the interrupted
  context) must be preserved. Preserve those registers
  in memory. Sure there exist more efficient ways how to
  copy the inputs.
  
  Simplify before_thread_runs_arch(), resp. after_thread_ran_arch(),
  and make them install, resp. uninstall, DTLB locked mapping for
  eventual userspace window buffer.