EXTRA_MEM_RATIO - Linux

Symbol: EXTRA_MEM_RATIO

arch/x86/xen/enlighten_pvh.c

extra_pages = EXTRA_MEM_RATIO * ram_pages;

arch/x86/xen/setup.c

maxmem_pages = EXTRA_MEM_RATIO * min(ini_nr_pages, PFN_DOWN(MAXMEM));