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authorJames Morris <james.l.morris@oracle.com>2012-05-04 12:46:40 +1000
committerJames Morris <james.l.morris@oracle.com>2012-05-04 12:46:40 +1000
commit898bfc1d46bd76f8ea2a0fbd239dd2073efe2aa3 (patch)
treee6e666085abe674dbf6292555961fe0a0f2e2d2f /arch/x86/kernel/apic/x2apic_phys.c
parent08162e6a23d476544adfe1164afe9ea8b34ab859 (diff)
parent69964ea4c7b68c9399f7977aa5b9aa6539a6a98a (diff)
downloadolio-linux-3.10-898bfc1d46bd76f8ea2a0fbd239dd2073efe2aa3.tar.xz
olio-linux-3.10-898bfc1d46bd76f8ea2a0fbd239dd2073efe2aa3.zip
Merge tag 'v3.4-rc5' into next
Linux 3.4-rc5 Merge to pull in prerequisite change for Smack: 86812bb0de1a3758dc6c7aa01a763158a7c0638a Requested by Casey.
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 8a778db45e3..991e315f422 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;
}