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authorAlex Williamson <alex.williamson@redhat.com>2014-04-22 10:08:40 -0600
committerJoerg Roedel <joro@8bytes.org>2014-05-13 12:33:11 +0200
commite028a9e6b8a637af09ac4114083280df4a7045f1 (patch)
tree408a315bfb5d3e2b227363c2c6acc44a8027355d /drivers/iommu
parentd6d211db37e75de2ddc3a4f979038c40df7cc79c (diff)
downloadlinux-e028a9e6b8a637af09ac4114083280df4a7045f1.tar.bz2
iommu/amd: Fix interrupt remapping for aliased devices
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> Cc: stable@vger.kernel.org Signed-off-by: Joerg Roedel <joro@8bytes.org>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/amd_iommu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index c949520bd196..57068e8035b5 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3999,7 +3999,7 @@ 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);
}