From owner-freebsd-smp Sat Aug 31 14:43:53 1996 Return-Path: owner-smp Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id OAA16297 for smp-outgoing; Sat, 31 Aug 1996 14:43:53 -0700 (PDT) Received: from clem.systemsix.com (clem.systemsix.com [198.99.86.131]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id OAA16267 for ; Sat, 31 Aug 1996 14:43:46 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by clem.systemsix.com (8.6.12/8.6.12) with SMTP id PAA28776; Sat, 31 Aug 1996 15:43:40 -0600 Message-Id: <199608312143.PAA28776@clem.systemsix.com> X-Authentication-Warning: clem.systemsix.com: Host localhost didn't use HELO protocol X-Mailer: exmh version 1.6.5 12/11/95 From: Steve Passe To: freebsd-smp@FreeBSD.ORG cc: rv@groa.uct.ac.za, erich@uruk.org Subject: Re: SMP on Intel MG15 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 31 Aug 1996 15:43:40 -0600 Sender: owner-smp@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Hi, Russel and I are trying to get FreeBSD SMP working on the Intel XXPRESS board. We are past hte 2nd CPU ID = 2 problem. It appears that the apic_startup routine never (correctly) launches the 2nd CPU. looking at the MP spec and Intel pent. manuals it appears that the INIT/Reset IPI expects that a "warm start vector" will exist for starting the 2nd CPU, but the current code seems to ignore this. See MP spec B.4.1 for details. Is the purpose of this INIT/Reset IPI just to get the 2nd CPU to a known state, ie NOT to actually start it processing the bootMP code? Should not the code setup the BIOS warmstart vector to point @ a "HLT" instruction b4 using the INIT IPI? -- Steve Passe | powered by smp@csn.net | FreeBSD