Date: Mon, 2 Sep 1996 13:04:40 -0700 (MST) From: Terry Lambert <terry@lambert.org> To: smp@csn.net (Steve Passe) Cc: erich@uruk.org, terry@lambert.org, freebsd-smp@freebsd.org, rv@groa.uct.ac.za Subject: Re: SMP on Intel MG15 Message-ID: <199609022004.NAA02867@phaeton.artisoft.com> In-Reply-To: <199609021951.NAA06411@clem.systemsix.com> from "Steve Passe" at Sep 2, 96 01:51:28 pm
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> Question: > > isn't the STARTUP IPI redundant if the code in the INIT/RESET IPI vectors > thru warmstart to the boot code? >From my reading of the 1.1 specification, the STARTUP IPI method is the preferred method, and the INIT IPI method is deprecated for use by systems with external APIC's. I derive this implication from the phrase "is used with systems based on version 1.x or higher of the local APIC". It's a pretty clear indicator that local APIC's, version 1.x or higher, *must* honor the STARTUP IPI. This leaves me believing that your board is 1.4 but *not* 1.1 compliant. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.
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