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authorAlex Williamson <alex.williamson@redhat.com>2014-04-22 10:08:40 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-06-07 13:25:40 -0700
commit0a4e3565df0c91bf0f7a68dee09e45c9d9b2d360 (patch)
parenta757a4e215574f2c92fc990275fa5e02159771e1 (diff)
iommu/amd: Fix interrupt remapping for aliased devices
commit e028a9e6b8a637af09ac4114083280df4a7045f1 upstream. An apparent cut and paste error prevents the correct flags from being set on the alias device resulting in MSI on conventional PCI devices failing to work. This also produces error events from the IOMMU like: AMD-Vi: Event logged [INVALID_DEVICE_REQUEST device=00:14.4 address=0x000000fdf8000000 flags=0x0a00] Where 14.4 is a PCIe-to-PCI bridge with a device behind it trying to use MSI interrupts. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Joerg Roedel <joro@8bytes.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index a3c338942f1..6f849cbcac6 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3959,7 +3959,7 @@ static struct irq_remap_table *get_irq_table(u16 devid, bool ioapic)
iommu_flush_dte(iommu, devid);
if (devid != alias) {
irq_lookup_table[alias] = table;
- set_dte_irq_entry(devid, table);
+ set_dte_irq_entry(alias, table);
iommu_flush_dte(iommu, alias);