Eric W. Biederman wrote:
Jeremy Fitzhardinge <jeremy@xxxxxxxx> writes:
H. Peter Anvin wrote:
It would be *trivial* to make a certain number of page table slots
available at the end of the head.S-generated map.
Or you could use a fixmap.
That certain number of page table slots should be the fixmap slots.
If you do that bt_ioremap works, we remove a boatload of special cases
and the code becomes simpler.
It's probably worth noting that several of the non-PC ports already do
exactly this, although in a hacky way. Grep for pg0 and you'll find it.
-hpa
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