Re: [PATCH v3 1/1] powerpc/iommu: Enable remaining IOMMU Pagesizes present in LoPAR

On Thu, 8 Apr 2021 17:19:16 -0300, Leonardo Bras wrote: > According to LoPAR, ibm,query-pe-dma-window output named "IO Page Sizes" > will let the OS know all possible pagesizes that can be used for creating a > new DDW. > > Currently Linux will only try using 3 of the 8 available options: > 4K, 64

[PATCH v3 1/1] powerpc/iommu: Enable remaining IOMMU Pagesizes present in LoPAR

According to LoPAR, ibm,query-pe-dma-window output named "IO Page Sizes" will let the OS know all possible pagesizes that can be used for creating a new DDW. Currently Linux will only try using 3 of the 8 available options: 4K, 64K and 16M. According to LoPAR, Hypervisor may also offer 32M, 64M, 1