KMMIO_PAGE_HASH_BITS 32 arch/x86/mm/kmmio.c #define KMMIO_PAGE_TABLE_SIZE (1 << KMMIO_PAGE_HASH_BITS) KMMIO_PAGE_HASH_BITS 83 arch/x86/mm/kmmio.c return &kmmio_page_table[hash_long(addr, KMMIO_PAGE_HASH_BITS)];