[PATCH v4 09/11] powerpc/pseries/iommu: Find existing DDW with given property name

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

Re: [PATCH v4 09/11] powerpc/pseries/iommu: Find existing DDW with given property name

On 01/05/2021 02:31, 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 k