March 7, 2013
4:48 a.m.
On Wed, Mar 06, 2013 at 11:00:36PM -0500, Valdis.Kletnieks@vt.edu wrote:
On Thu, 07 Mar 2013 11:43:43 +0800, ishare said:
set_pgd(swapper_pg_dir+i, __pgd(0));
If I have not define CONFIG_X86_PAE ,then the low mem will be invalided all .
And what makes you think that call invalidates *all* the page mappings?
because all the pde (0-768) are set to 0x0 ,so no phsical pages are mapping to these pde . isn't it?