[dpdk-dev] [PATCH 2/2] vfio: modify spapr iommu support to use static window sizing
David Christensen
drc at linux.vnet.ibm.com
Tue May 5 18:26:44 CEST 2020
>>>>> That's not even mentioning the fact
>>>>> that the user may register external memory for DMA which may cause
>>>>> the window to be of insufficient size to cover said external memory.
Regarding external memory, I can think of two obvious options:
1) Skip window sizing altogether if external memory is detected and
assume the user has set things up appropriately.
2) Add an EAL command line option --iova-len that would allow the
external memory requirements to be considered it required.
I'll work on a new patch with (2) along with the other changes discussed
and resubmit. Thanks for the feedback.
Dave
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