Date: Tue, 12 Jun 2001 00:27:06 +0200 (CEST) From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> To: freebsd-hackers@freebsd.org Subject: Patented algorithm in FreeBSD Message-ID: <Pine.LNX.3.96.1010611235853.12928A-100000@artax.karlin.mff.cuni.cz>
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Hi Go to http://www.uspto.gov/patft/, search for patent number 5873127, and you will find the description of mapping page table entries into virtual memory via one page directory entry pointing to the page directory itself - exactly what FreeBSD does with PTDPTDI and APTDPTDI entries on i386. (including using alternate space as in get_ptbase() in i386/pmap.c to access page table entries of different processes). Mikulas To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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