Add required support in the interrupt remapping driver for devices
which generate dev-msi interrupts and use the intel remapping
domain as the parent domain. Set the source-id of all dev-msi
interrupt requests to the parent PCI device associated with it.
Reviewed-by: Tony Luck <tony.l...@intel.com>
Signed-off-by: Megha Dey <megha....@intel.com>
---
drivers/iommu/intel/irq_remapping.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/intel/irq_remapping.c
b/drivers/iommu/intel/irq_remapping.c
index 611ef52..2a55e54 100644
--- a/drivers/iommu/intel/irq_remapping.c
+++ b/drivers/iommu/intel/irq_remapping.c
@@ -1282,6 +1282,9 @@ static void intel_irq_remapping_prepare_irte(struct
intel_ir_data *data,
case X86_IRQ_ALLOC_TYPE_PCI_MSIX:
set_msi_sid(irte, msi_desc_to_pci_dev(info->desc));
break;
+ case X86_IRQ_ALLOC_TYPE_DEV_MSI:
+ set_msi_sid(irte, to_pci_dev(info->desc->dev->parent));
+ break;
default:
BUG_ON(1);
break;
@@ -1325,7 +1328,8 @@ static int intel_irq_remapping_alloc(struct irq_domain
*domain,
if (!info || !iommu)
return -EINVAL;
if (nr_irqs > 1 && info->type != X86_IRQ_ALLOC_TYPE_PCI_MSI &&
- info->type != X86_IRQ_ALLOC_TYPE_PCI_MSIX)
+ info->type != X86_IRQ_ALLOC_TYPE_PCI_MSIX &&
+ info->type != X86_IRQ_ALLOC_TYPE_DEV_MSI)
return -EINVAL;
/*
--
2.7.4
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
