x64, x2apic/intr-remap: parse ioapic scope under vt-d structures
Parse the vt-d device scope structures to find the mapping between IO-APICs
and the interrupt remapping hardware units.
This will be used later for enabling Interrupt-remapping for IOAPIC devices.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: akpm@linux-foundation.org
Cc: arjan@linux.intel.com
Cc: andi@firstfloor.org
Cc: ebiederm@xmission.com
Cc: jbarnes@virtuousgeek.org
Cc: steiner@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index 903f170..127764c 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -423,6 +423,9 @@
printk(KERN_INFO PREFIX "No RMRR found\n");
#endif
+#ifdef CONFIG_INTR_REMAP
+ parse_ioapics_under_ir();
+#endif
return 0;
}