Messages in this thread |  | | Date | Fri, 03 Jan 1997 19:52:23 +0000 | From | Morgan Sarges <> | Subject | Re: pentium 4MB pages question for you MMU hackers |
| |
Ingo Molnar wrote: > > just wondering if ring 3 code could use 4MB pages. > > When i have the following page dir entry: > > _PAGE_TABLE | _PAGE_4M | 4mb_aligned_phys_addr > > Kernel space sees phys_addr correctly, but user space doesnt. Does this > mean that 4MB pages are only for ring0 code? Has anyone experimented with > this one? > > [heh, if only for ring0 then one more argument for GGI being in the kernel > .. and one more argument for ring0 processes] > > -- mingo > > ps. and i got faults when phys_addr wasnt 4mb aligned ... does it really > have to be 4mb aligned?
Id like to ask a dumb question here, before I say something really ignorant.
What is ring0 code? How does it relate to linux/unix?
What are GGI's?
If ring0 is what I think it is, this could make 1997 very long and ugly.
-- Morgan Sarges Warbirds: blip http://www.sodak.net/~blip blip@sodak.net
|  |