[PATCH v5 1/7] PCI/ATS: Ensure pci_ats_supported() is PF-aware for VFs

[Baolu Lu]

On 5/29/26 04:23, Pranjal Shrivastava wrote:
> Update pci_ats_supported() to additionally check the associated PF's
> status when called on a VF. This ensures that PF-level quirks and
> untrusted status are correctly propagated to VFs, providing a robust
> support check that aligns with the kernel's PF-centric ATS configuration
> model and is immune to the timing of VF-specific fixups.
> 
> Reviewed-by: Jason Gunthorpe<jgg at nvidia.com>
> Reviewed-by: Samiullah Khawaja<skhawaja at google.com>
> Reviewed-by: Nicolin Chen<nicolinc at nvidia.com>
> Signed-off-by: Pranjal Shrivastava<praan at google.com>
> ---
>   drivers/pci/ats.c | 7 +++++--
>   1 file changed, 5 insertions(+), 2 deletions(-)

Reviewed-by: Lu Baolu <baolu.lu at linux.intel.com>