From owner-freebsd-hackers Sun Jul 26 13:28:23 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id NAA02845 for freebsd-hackers-outgoing; Sun, 26 Jul 1998 13:28:23 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from bingsun2 (bingsun2.cc.binghamton.edu [128.226.1.6]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id NAA02831 for ; Sun, 26 Jul 1998 13:28:13 -0700 (PDT) (envelope-from bf20761@binghamton.edu) Received: from localhost (bf20761@localhost) by bingsun2 (SMI-8.6/8.6.9) with SMTP id QAA24353 for ; Sun, 26 Jul 1998 16:27:43 -0400 Date: Sun, 26 Jul 1998 16:27:43 -0400 (EDT) From: zhihuizhang X-Sender: bf20761@bingsun2 To: hackers Subject: APTDpde question (pmap) Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In pmap.c module, we set PTDPTDI entry of the page directory page to point to itself. So PTDpde and PTmap works well. However, I do not find a similar setting of APTDTDI (=1023) in pmap.c. My question is how APTDpde and the alternate address space it's supposed to relate to (APTmap) are used. (has something to do with pmap copy?) Any help is appreciated. -------------------------------------------------- | Zhihui Zhang, http://cs.binghamton.edu/~zzhang | | Dept. of Computer Science, SUNY at Binghamton | -------------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message