Fawad Lateef wrote:
On 9/3/05, Rahul Iyer <idlisambar@xxxxxxxxx> wrote:
Paging
Segmentation
Virtual Address ------------> Linear Address -------------------------->
Physical Address
I know this, its clearly mentioned in the Intel System Programming
Manual !!! but I havn't seen any linear address related thing in
kernel .... can you point me towards it ??? b/c AFAIK kernel uses
virtual adresses not linear and I havn't found any difference b/w them
or might I still not aware of it :(
Hi Fawad,
Linux doesn't really use segmentation. But x86 *requires* you to use it.
IIRC, Linux defines all segments as the 4G of memory. What i mean is
that each segment maps all of the 4G. Because of this, there is a 1 to 1
correspondence between Linear and Physical addresses.
thanks
Rahul
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