Re: [PATCH v5 09/11] powerpc/pseries/iommu: Find existing DDW with given property name

2021-07-20 Thread Frederic Barrat
On 16/07/2021 10:27, Leonardo Bras wrote: At the moment pseries stores information about created directly mapped DDW window in DIRECT64_PROPNAME. With the objective of implementing indirect DMA mapping with DDW, it's necessary to have another propriety name to make sure kexec'ing into older

[PATCH v5 09/11] powerpc/pseries/iommu: Find existing DDW with given property name

2021-07-16 Thread Leonardo Bras
At the moment pseries stores information about created directly mapped DDW window in DIRECT64_PROPNAME. With the objective of implementing indirect DMA mapping with DDW, it's necessary to have another propriety name to make sure kexec'ing into older kernels does not break, as it would if we reuse