Re: [PATCH v2 3/3] iommu/ipmmu-vmsa: Implement basic PCIE-IPMMU OSID support

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Mon, 14 Jul 2025, Mykyta Poturai wrote:
> From: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
> 
> Program PCIE BDF-OSID assignment according to the S4_PCIe_IPMMU-OSID
> when adding PCI device to the IOMMU in ipmmu_add_device callback.
> This is needed for being able to assign PCI devices to different
> domains at the same time. Programmed OSID is emmited as sideband data on
> the AXI bus during PCI DMA transactions and then used by IPMMU to match
> the transaction to the corresponding uTLB.
> 
> Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
> Signed-off-by: Mykyta Poturai <mykyta_poturai@xxxxxxxx>

Acked-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>