Date: Sun, 12 Jul 1998 16:08:14 +0100 (BST) From: Doug Rabson <dfr@nlsystems.com> To: David Greenman <dg@root.com> Cc: Stefan Eggers <seggers@semyam.dinoco.de>, freebsd-hackers@FreeBSD.ORG Subject: Re: Page size flexibility in FreeBSD VM? Message-ID: <Pine.BSF.3.95q.980712160622.342E-100000@herring.nlsystems.com> In-Reply-To: <199807121336.GAA07869@implode.root.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sun, 12 Jul 1998, David Greenman wrote: > >While reading the VM source I was wondering about how flexible it > >shall be with regard to the page sizes used. Is the goal just to > >support 4k pages and if that works it is good enough or shall it be > >more flexible if one wishes to use smaller or larger pages? > > > >The actual mapping in pmap.c of course has to cope with hardware > >restrictions. My questions is just concerned with the machine > >independent part. > > The goal is to be flexible enough to support our supported hardware > platforms. Right now, that would be Intel x86 (4K) and Alpha (8K) in the > future. To add to that, I only found one minor bug in the machine-independant parts of the kernel that was caused by the different page size of the alpha platform. I would not expect to see any problems with page sizes other than 4k/8k, within reason. -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 951 1891 Fax: +44 181 381 1039 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.3.95q.980712160622.342E-100000>