Re: pte-highmem vs UKVA (was: object-based rmap and pte-highmem)

William Lee Irwin III (wli@holomorphy.com)
Sun, 23 Feb 2003 14:10:30 -0800


On Sun, Feb 23, 2003 at 02:07:42PM -0800, Martin J. Bligh wrote:
> Using UKVA for PTEs seems to be a better way to implement pte-highmem to me.
> If you're walking another processes' pagetables, you just kmap them as now,
> but I think this will avoid most of the kmap'ing (if we have space for two
> sets of pagetables so we can do a little bit of trickery at fork time).

Another term for "UKVA for pagetables only" is "recursive pagetables",
if this helps clarify anything.

-- wli
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