Re: [PATCH v5 2/4] powerpc/pseries/iommu: Update call to ibm,query-pe-dma-windows

2020-08-04 Thread Alexey Kardashevskiy
On 05/08/2020 13:04, Leonardo Bras wrote: > From LoPAR level 2.8, "ibm,ddw-extensions" index 3 can make the number of > outputs from "ibm,query-pe-dma-windows" go from 5 to 6. > > This change of output size is meant to expand the address size of > largest_available_block PE TCE from 32-bit to 6

[PATCH v5 2/4] powerpc/pseries/iommu: Update call to ibm,query-pe-dma-windows

2020-08-04 Thread Leonardo Bras
>From LoPAR level 2.8, "ibm,ddw-extensions" index 3 can make the number of outputs from "ibm,query-pe-dma-windows" go from 5 to 6. This change of output size is meant to expand the address size of largest_available_block PE TCE from 32-bit to 64-bit, which ends up shifting page_size and migration_