From d0b03bd1c6725a3463290d7f9626e4b583518a5a Mon Sep 17 00:00:00 2001 From: "Han, Weidong" Date: Fri, 3 Apr 2009 17:15:50 +0800 Subject: x2apic/intr-remap: decouple interrupt remapping from x2apic interrupt remapping must be enabled before enabling x2apic, but interrupt remapping doesn't depend on x2apic, it can be used separately. Enable interrupt remapping in init_dmars even x2apic is not supported. [dwmw2: Update Kconfig accordingly, fix build with INTR_REMAP && !X2APIC] Signed-off-by: Weidong Han Acked-by: Ingo Molnar Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/pci') diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index ef5795d0396..f3eebd2b2d7 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1947,6 +1947,15 @@ static int __init init_dmars(void) } } +#ifdef CONFIG_INTR_REMAP + if (!intr_remapping_enabled) { + ret = enable_intr_remapping(0); + if (ret) + printk(KERN_ERR + "IOMMU: enable interrupt remapping failed\n"); + } +#endif + /* * For each rmrr * for each dev attached to rmrr -- cgit v1.2.3