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authorTrond Myklebust <Trond.Myklebust@netapp.com>2012-05-21 10:12:39 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-05-21 10:12:39 -0400
commitb3f87b98aa3dc22cc58f970140113b270015cddb (patch)
treec4aec5996567ad96310f61e9244e799f41bf2625 /arch/x86/kernel/apic/x2apic_phys.c
parent041245c88a29273788e8eff1353bc6e1f56c61df (diff)
parent1afeaf5c29aa07db25760d2fbed5c08a3aec3498 (diff)
Merge branch 'bugfixes' into nfs-for-next
Diffstat (limited to 'arch/x86/kernel/apic/x2apic_phys.c')
-rw-r--r--arch/x86/kernel/apic/x2apic_phys.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index 8a778db45e3a..991e315f4227 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -24,6 +24,12 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
{
if (x2apic_phys)
return x2apic_enabled();
+ else if ((acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) &&
+ (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL) &&
+ x2apic_enabled()) {
+ printk(KERN_DEBUG "System requires x2apic physical mode\n");
+ return 1;
+ }
else
return 0;
}