Re: [PATCH v12 09/17] iommu/vt-d: Add blocking domain support

[Baolu Lu]

On 2022/8/26 22:54, Jason Gunthorpe wrote:
> On Fri, Aug 26, 2022 at 08:11:33PM +0800, Lu Baolu wrote:
> > The Intel IOMMU hardwares support blocking DMA transactions by clearing
> > the translation table entries. This implements a real blocking domain to
> > avoid using an empty UNMANAGED domain. The detach_dev callback of the
> > domain ops is not used in any path. Remove it to avoid dead code as well.
> >
> > Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> > Tested-by: Tony Zhu <tony.zhu@xxxxxxxxx>
> > ---
> >   drivers/iommu/intel/iommu.c | 25 ++++++++++++++++++-------
> >   1 file changed, 18 insertions(+), 7 deletions(-)
>
> At this point I'd suggest to make a little series that does all the
> blocking domain stuff in one shot
>
> The removal of detach_dev callbacks is pretty nice for clarity.

Yes. As you saw, I have a separated series for above purpose.

Best regards,
baolu