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[PATCH] x86: deterine xapic using apic version

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Checking APIC version instead of CPU family to determine XAPIC. Family 6
CPU could have xapic as well.

Signed-off-by: Shaohua Li<shaohua.li@intel.com>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: "Seth, Rohit" <rohit.seth@intel.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Shaohua Li
2006-03-23 02:59:53 -08:00
committed by Linus Torvalds
parent f2d0d263b5
commit 7c5c1e427b
2 changed files with 4 additions and 2 deletions
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3
arch/i386/kernel/io_apic.c
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@ -1761,7 +1761,8 @@ static void __init setup_ioapic_ids_from_mpc(void)
* Don't check I/O APIC IDs for xAPIC systems. They have
* no meaning without the serial APIC bus.
*/
if (!(boot_cpu_data.x86_vendor == X86_VENDOR_INTEL && boot_cpu_data.x86 < 15))
if (!(boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
|| APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
return;
/*
* This is broken; anything with a real cpu count has to