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

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Hi Ashok,

On 9/24/19 4:31 AM, Raj, Ashok wrote:
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

Yes.



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

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

Yes. I don't like it either. I've thought about it and haven't
figured out a satisfied one. Do you have any suggestions?

Best regards,
Baolu


  - 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>




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