[PATCH v7 17/24] iommu/ipmmu: Add an IOMMU_IDENTITIY_DOMAIN

[Jerry Snitselaar]

On Wed, Aug 23, 2023 at 01:47:31PM -0300, Jason Gunthorpe wrote:
> This brings back the ops->detach_dev() code that commit
> 1b932ceddd19 ("iommu: Remove detach_dev callbacks") deleted and turns it
> into an IDENTITY domain.
> 
> Also reverts commit 584d334b1393 ("iommu/ipmmu-vmsa: Remove
> ipmmu_utlb_disable()")
> 
> Reviewed-by: Lu Baolu <baolu.lu at linux.intel.com>
> Signed-off-by: Jason Gunthorpe <jgg at nvidia.com>
> ---
>  drivers/iommu/ipmmu-vmsa.c | 43 ++++++++++++++++++++++++++++++++++++++
>  1 file changed, 43 insertions(+)
> 

Reviewed-by: Jerry Snitselaar <jsnitsel at redhat.com>