From: Len Brown <len.brown@intel.com>
Date: Sun, 11 Mar 2007 07:26:14 +0000 (-0400)
Subject: ACPI: Add support to parse 2nd MADT
X-Git-Tag: v2.6.21-rc5~30^2~1^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1fdcc0d2714b6622e3fd5c00db1635213d6c41a;p=pandora-kernel.git

ACPI: Add support to parse 2nd MADT

When a BIOS bug presents multiple APIC/MADTs,
Linux currently uses the 1st and ignores the 2nd.

But some machines work better if we use the 2nd.

http://bugzilla.kernel.org/show_bug.cgi?id=7465

Add a warning and boot parameter "acpi_apic_instance=2"
to allow parsing the 2nd.

No change to default behaviour in this patch.

Signed-off-by: Len Brown <len.brown@intel.com>
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