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SubjectRe: [PATCH kernel v11 30/34] powerpc/iommu/ioda2: Add get_table_size() to calculate the size of future table
On Fri, May 29, 2015 at 06:44:54PM +1000, Alexey Kardashevskiy wrote:
> This adds a way for the IOMMU user to know how much a new table will
> use so it can be accounted in the locked_vm limit before allocation
> happens.
> This stores the allocated table size in pnv_pci_ioda2_get_table_size()
> so the locked_vm counter can be updated correctly when a table is
> being disposed.
> This defines an iommu_table_group_ops callback to let VFIO know
> how much memory will be locked if a table is created.
> Signed-off-by: Alexey Kardashevskiy <>

Reviewed-by: David Gibson <>

David Gibson | I'll have my music baroque, and my code
david AT | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
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