Re: [PATCH v4 2/7] powerpc/pseries/iommu: Update call to ibm, query-pe-dma-windows

2020-08-04 Thread David Dai
On Thu, 2020-07-16 at 04:16 -0300, 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

[PATCH v4 2/7] powerpc/pseries/iommu: Update call to ibm,query-pe-dma-windows

2020-07-16 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_