Date: Fri, 07 Nov 1997 20:03:05 +1030 From: Mike Smith <mike@smith.net.au> To: Jonathan Mini <mini@d198-232.uoregon.edu> Cc: Mike Smith <mike@smith.net.au>, hackers@FreeBSD.ORG Subject: Re: x86 gods; advice? Suggestions? Message-ID: <199711070933.UAA00302@word.smith.net.au> In-Reply-To: Your message of "Fri, 07 Nov 1997 00:04:30 -0800." <19971107000430.02841@micron.mini.net>
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> What privelege level is this running at? It has to run with DPL = 0. > Why not just execute an illegal instruction and catch it? Because this is in the kernel context, and I've no way of knowing how to say "just for now I want illegal instructions to come here". > (in my vm86 code, I use hlt for this all the time) Yes, that's what JL uses to kill execution after his interrupt thunk (which is working wonderfully BTW). mike
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