Re: [PATCH v4 7/7] iommu/riscv: Paging domain support

[Baolu Lu]

On 5/4/24 12:12 AM, Tomasz Jeznach wrote:
> Introduce first-stage address translation support.
>
> Page table configured by the IOMMU driver will use the highest mode
> implemented by the hardware, unless not known at the domain allocation
> time falling back to the CPU’s MMU page mode.
>
> This change introduces IOTINVAL.VMA command, required to invalidate
> any cached IOATC entries after mapping is updated and/or removed from
> the paging domain.  Invalidations for the non-leaf page entries use
> IOTINVAL for all addresses assigned to the protection domain for
> hardware not supporting more granular non-leaf page table cache
> invalidations.
>
> Signed-off-by: Tomasz Jeznach<tjeznach@xxxxxxxxxxxx>

Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>

Best regards,
baolu