On Mon, Aug 11, 2025 at 07:39:35AM +0200, Nam Cao wrote:
> Commit d7d8ab87e3e7 ("PCI: vmd: Switch to msi_create_parent_irq_domain()")
> added a WARN_ON sanity check that child devices support MSI-X, because VMD
> document says [1]:
>
> "Intel VMD only supports MSIx Interrupts from child devices and
> therefore the BIOS must enable PCIe Hot Plug and MSIx interrups [sic]."
>
> However, on Ammar's machine, a PCIe port below VMD does not support MSI-X,
> triggering this WARN_ON.
>
> This inconsistency between the document and reality should be investigated
> further. For now, remove the MSI-X check.
Posting the processor model in question here for Intel VMD team. It may
help the investigation. The processor model I use is i7-1165G7.
Let me know if you guys need more information from me.
--
Ammar Faizi
