Re: [RFC PATCH 2/4] iommu/vt-d: Add first level page table interfaces

[Raj, Ashok]

On Mon, Sep 23, 2019 at 08:24:52PM +0800, Lu Baolu wrote:
> This adds functions to manipulate first level page tables
> which could be used by a scalale mode capable IOMMU unit.

s/scalale/scalable

> 
> intel_mmmap_range(domain, addr, end, phys_addr, prot)

Maybe think of a different name..? mmmap seems a bit weird :-)

>  - Map an iova range of [addr, end) to the physical memory
>    started at @phys_addr with the @prot permissions.
> 
> intel_mmunmap_range(domain, addr, end)
>  - Tear down the map of an iova range [addr, end). A page
>    list will be returned which will be freed after iotlb
>    flushing.
> 
> Cc: Ashok Raj <ashok.raj@xxxxxxxxx>
> Cc: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
> Cc: Kevin Tian <kevin.tian@xxxxxxxxx>
> Cc: Liu Yi L <yi.l.liu@xxxxxxxxx>
> Cc: Yi Sun <yi.y.sun@xxxxxxxxxxxxxxx>
> Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>