util/cpt_upgraders/memory-per-range.py

   1 # The backing store supporting the memories in the system has changed
   2 # in that it is now stored globally per address range. As a result the
   3 # actual storage is separate from the memory controllers themselves.
   4 def upgrader(cpt):
   5     for sec in cpt.sections():
   6         import re
   7         # Search for a physical memory
   8         if re.search('.*sys.*\.physmem$', sec):
   9             # Add the number of stores attribute to the global physmem
  10             cpt.set(sec, 'nbr_of_stores', '1')
  11
  12             # Get the filename and size as this is moving to the
  13             # specific backing store
  14             mem_filename = cpt.get(sec, 'filename')
  15             mem_size = cpt.get(sec, '_size')
  16             cpt.remove_option(sec, 'filename')
  17             cpt.remove_option(sec, '_size')
  18
  19             # Get the name so that we can create the new section
  20             system_name = str(sec).split('.')[0]
  21             section_name = system_name + '.physmem.store0'
  22             cpt.add_section(section_name)
  23             cpt.set(section_name, 'store_id', '0')
  24             cpt.set(section_name, 'range_size', mem_size)
  25             cpt.set(section_name, 'filename', mem_filename)
  26         elif re.search('.*sys.*\.\w*mem$', sec):
  27             # Due to the lack of information about a start address,
  28             # this migration only works if there is a single memory in
  29             # the system, thus starting at 0
  30             raise ValueError("more than one memory detected (" + sec + ")")
  31
  32 legacy_version = 2