Hi, guys
the page range from 160 to 192 corresponding to the physcial address from a0000 to bffff.
That address space belongs to the PCI Bus we can get from the /proc/iomem.
we konw that the region may exist valid page struct, but PG_RESERVED should be set.
is right? but the actual is that page range is not any flag. I don't understand.
[root@localhost vm]# ./page-types -a 160,192
flags page-count MB symbolic-flags long-symbolic-flags
0x0000000000000000 32 0 __________________________________________
total 32 0
[root@localhost vm]# cat /proc/iomem | head -n5
00000000-00000fff : reserved
00001000-0009a7ff : System RAM
0009a800-0009ffff : reserved
000a0000-000bffff : PCI Bus 0000:00
000c0000-000c7fff : Video ROM
Thanks
zhongjiang
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>