>specific memory needs. In particular, it needs to use memory from 0x600
>to 0x700, and 0x1000 to 0x1fff.
Er, what for? That sounds like a rather bad idea to me.
>It's not clear to me yet if Linux is
>using anything in this area that will conflict with the driver's needs.
>It looks like the kernels page tables are at 0x4000. Will this cause
>problems if I try and reserve the memory ranges above for my driver?
0x600..0x700 is probably OK because that page is pinned down anyway for the
vector table - though it's usually marked inaccessible to trap NULL
dereferences. There is no page mapped at 0x1000 per default so you will need
to create a fixed mapping there if you need it. The page table shouldn't get
in your way if you stay in the ranges you mentioned?
p.
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