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Re: [PATCH] fast path for rdhwr emulation for TLS

Subject: Re: [PATCH] fast path for rdhwr emulation for TLS
From: Atsushi Nemoto <>
Date: Tue, 12 Sep 2006 10:55:56 +0900 (JST)
In-reply-to: <>
Original-recipient: rfc822;
References: <> <> <>
On Mon, 11 Sep 2006 18:53:29 +0100 (BST), "Maciej W. Rozycki" 
<> wrote:
> > It might add a little overhead to usual TLB refill handling.  The
> > overhead might be neglectable, but I'm not sure.
>  There is no need to change the refill handler -- only the general TLBL 
> exception has to be modified.  And this one may be not too critical -- the 
> change required is in the path to mark pages accessed.  Is the path 
> frequent enough to seek a complex solution while a simple one would just 
> work?

Yes, my description was wrong.  general TLBL handling, not TLB refill

Hmm, it seems not so critical indeed.  Then "take 2" patch would be
exactly what you preferred.

Any comments about that?

Atsushi Nemoto

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