x86: update mptable

make mptable to be consistent with acpi routing, so we could:

1. kexec kernel with acpi=off
2. work around BIOSes where acpi routing is working, but mptable is
   not right, so can use kernel/kexec to start other OSes that don't have
   good acpi support.

command line: update_mptable

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index 89022a74faee..e556f30c7c16 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -570,6 +570,11 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
                (triggering == ACPI_LEVEL_SENSITIVE) ? "level" : "edge",
                (polarity == ACPI_ACTIVE_LOW) ? "low" : "high", dev->irq);
 
+#ifdef CONFIG_X86
+        mp_config_acpi_gsi(dev->bus->number, dev->devfn, dev->pin, irq,
+                                 triggering, polarity);
+#endif
+
         return 0;
 }