Date: Thu, 6 Dec 2001 09:31:38 -0700 (MST) From: Ronald G Minnich <rminnich@lanl.gov> To: <freebsd-hackers@FreeBSD.ORG> Subject: Re[2]: switching to real mode Message-ID: <Pine.LNX.4.33.0112060930220.17486-100000@snaresland.acl.lanl.gov> In-Reply-To: <1080523636.20011206191602@agava.com>
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On Thu, 6 Dec 2001, Dmitry Konyshev wrote: > I saw an example of switching in real mode in linux' sources (it looks > pretty clear) and thouhgt it is possible to do the same under FreeBSD. > The problem is I'm absolutely lost in FreeBSD's physical memory management > implementation (page tables and directory and so on). That code is quite broken. You need to check out the ones I mentioned earlier. All that the code does in the linux kernel is fail badly. Actually there used to be in freebsd some really nice code for popping into real mode and back again. It was to support calling BIOS for certain things. ron To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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