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Editorial updates #20

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Nov 18, 2023
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Editorial updates #20

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17 changes: 9 additions & 8 deletions qos_iommu.adoc
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Expand Up @@ -169,12 +169,13 @@ this case, the IOMMU should stop and report "DDT entry misconfigured" (cause =

=== IOMMU ATC capacity allocation and monitoring

The IOMMU may support capacity allocation and usage monitoring in the IOMMU
address translation cache (IOATC) by implementing a capacity controller register
interface.

Some IOMMU may support multiple IOATC where the capacity of each such IOATC may
not be the same. When multiple IOATC are implemented, (e.g., corresponding to
each page sizes supported), the IOMMU may implement a capacity controller
register interface for each IOATC to enable capacity allocation in each IOATC.
Some IOMMUs may support capacity allocation and usage monitoring in the IOMMU
address translation cache (IOATC) by implementing the capacity controller
register interface.

Additionally, some IOMMUs may support multiple IOATCs, each potentially having
different capacities. In scenarios where multiple IOATCs are implemented, such
as an IOATC for each supported page size, the IOMMU may implement a
capacity controller register interface for each IOATC to facilitate individual
capacity allocation.