zap_low_mappings

Valdis.Kletnieks at vt.edu Valdis.Kletnieks at vt.edu
Thu Mar 7 00:34:27 EST 2013


On Thu, 07 Mar 2013 12:48:06 +0800, ishare said:

>   because all the  pde (0-768) are set to 0x0 ,so no phsical pages are mapping to these pde .
>   isn't it?

The pdes don't end at 768.  Think about what pde numbers the kernel gets when
it loads at 0xc0000000 (which is where it lands with the default 3G/1G split).



-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 865 bytes
Desc: not available
Url : http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20130307/1318d572/attachment.bin 


More information about the Kernelnewbies mailing list