[PATCH] x86_64: Don't assume BSP has ID 0 in new smp bootup
authorAndi Kleen <ak@suse.de>
Tue, 17 May 2005 04:53:35 +0000 (21:53 -0700)
committerLinus Torvalds <torvalds@ppc970.osdl.org>
Tue, 17 May 2005 14:59:16 +0000 (07:59 -0700)
commit18a2b6471277c9ffbaa14a0c87a11a075eb354bd
treefda2050de7a28d40d036dcd02811ba315994a1c2
parent751521149a05e308d863d01ced61080ce1a2ec99
[PATCH] x86_64: Don't assume BSP has ID 0 in new smp bootup

This patch removes the assumption that LAPIC entries contain the BSP as its
first entry.  This is a slight improvement to the temporary fix submitted by
Suresh Siddha.

- Removes assumption that LAPIC entries contain BSP first.

- Builds x86_acpiid_to_apicid[] and bios_cpu_apicid[] properly with BSP as
  first entry.

- Made maxcpus=1 boot on these systems.  Since the parsing earlier in
  arch/x86_64/kernel/mpparse.c stopped after maxcpus entries, other entries
  were not processed, this causes kernel not to boot on these systems.

TBD: x86_acpiid_to_apicid and bios_cpu_apicid[] seem to be exactly the
     same.  This could be removed, but might need more work to cleanup.

Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/x86_64/kernel/mpparse.c
arch/x86_64/kernel/smpboot.c