Re: [PATCH v5 02/12] iommu: Add pasid_bits field in struct dev_iommu

[Baolu Lu]

On 2022/5/4 02:02, Jean-Philippe Brucker wrote:
> On Mon, May 02, 2022 at 09:48:32AM +0800, Lu Baolu wrote:
> > Use this field to save the pasid/ssid bits that a device is able to
> > support with its IOMMU hardware. It is a generic attribute of a device
> > and lifting it into the per-device dev_iommu struct makes it possible
> > to allocate a PASID for device without calls into the IOMMU drivers.
> > Any iommu driver which suports PASID related features should set this
> > field before features are enabled on the devices.
> >
> > For initialization of this field in the VT-d driver, the
> > info->pasid_supported is only set for PCI devices. So the status is
> > that non-PCI SVA hasn't been supported yet. Setting this field only for
> > PCI devices has no functional change.
> >
> > Signed-off-by: Lu Baolu<baolu.lu@xxxxxxxxxxxxxxx>
> Reviewed-by: Jean-Philippe Brucker<jean-philippe@xxxxxxxxxx>

Thank you! Very appreciated for reviewing my patches.

Best regards,
baolu