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[PATCH] x86_64: Use local APIC ID from local APIC instead of CPUID

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vSMPowered systems use apic_cluster too.  Forcing apic_physflat works
on these systems too, but only if we change phys_pkg_id to use
hard_smp_prcoessor_id() instead of cpuid_ebx.  I am guessing other
multichassi cluster systems would need this too.

Signed-off-by: ravikiran thirumalai <kiran@scalex86.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
ravikiran thirumalai 2006-06-26 13:56:04 +02:00 committed by Linus Torvalds
parent 7c393e7b95
commit 0f4fdb7fba
1 changed files with 1 additions and 4 deletions
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5
arch/x86_64/kernel/genapic_flat.c
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@ -108,10 +108,7 @@ static unsigned int flat_cpu_mask_to_apicid(cpumask_t cpumask)
static unsigned int phys_pkg_id(int index_msb)
{
u32 ebx;
ebx = cpuid_ebx(1);
return ((ebx >> 24) & 0xFF) >> index_msb;
return hard_smp_processor_id() >> index_msb;
}
struct genapic apic_flat = {