mbox series

[v2,0/2] PCI: vmd: IRQ domain assignment to sub devices

Message ID 20220511095707.25403-1-nirmal.patel@linux.intel.com
Headers show
Series PCI: vmd: IRQ domain assignment to sub devices | expand

Message

Nirmal Patel May 11, 2022, 9:57 a.m. UTC 
Host OS fails to boot and DMAR errors were observed when interrupt
remapping is enabled by intel_iommu because of the fact that VMD child
devices are on different IRQ domain than all other PCI devices.
Make sure VMD assigns proper IRQ domain to the child devices during
device enumeration.

Nirmal Patel (2):
  PCI: vmd: Assign VMD IRQ domain before enumeration
  PCI: vmd: Revert 2565e5b69c44 ("PCI: vmd: Do not disable MSI-X
    remapping if interrupt remapping is enabled by IOMMU.")

 drivers/pci/controller/vmd.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

Comments

Lorenzo Pieralisi May 12, 2022, 2:55 p.m. UTC | #1 
On Wed, 11 May 2022 02:57:05 -0700, Nirmal Patel wrote:
> Host OS fails to boot and DMAR errors were observed when interrupt
> remapping is enabled by intel_iommu because of the fact that VMD child
> devices are on different IRQ domain than all other PCI devices.
> Make sure VMD assigns proper IRQ domain to the child devices during
> device enumeration.
> 
> Nirmal Patel (2):
>   PCI: vmd: Assign VMD IRQ domain before enumeration
>   PCI: vmd: Revert 2565e5b69c44 ("PCI: vmd: Do not disable MSI-X
>     remapping if interrupt remapping is enabled by IOMMU.")
> 
> [...]

Applied to pci/vmd, thanks!

[1/2] PCI: vmd: Assign VMD IRQ domain before enumeration
      https://git.kernel.org/lpieralisi/pci/c/886e67100b
[2/2] PCI: vmd: Revert 2565e5b69c44 ("PCI: vmd: Do not disable MSI-X remapping if interrupt remapping is enabled by IOMMU.")
      https://git.kernel.org/lpieralisi/pci/c/c94f732e80

Thanks,
Lorenzo