Subject: Re: Improving the arm32 pmap
To: None <,>
From: Steve Woodford <>
List: port-arm
Date: 01/13/2003 20:06:11
On Mon, 13 Jan 2003, Ignatios Souvatzis wrote:

> On Mon, Jan 13, 2003 at 12:14:17PM +0000, Steve Woodford
> <proposes to use arm mmu domains to share l1 page tables>
> For that, it was proposed that only pmaps without wired page entries should
> be candidates - however I don't know whether this is an absolute requirement
> or only an optimization. I suspect it would be a requirement for your method,
> too. Can somebody throw in some enlightment here?

Well, what I'm proposing would not, technically, be stealing the L1 page
tables. Think of it more as a form of TLB miss when we have to replace an
L1 descriptor when faulting due to a domain mismatch.

Cheers, Steve


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