Hello Alexey,
On Tue, 2021-03-23 at 18:41 +1100, Alexey Kardashevskiy wrote:
[...]
> > +#define IOMMU_PAGE_SHIFT_16G 34
> > +#define IOMMU_PAGE_SHIFT_256M 28
> > +#define IOMMU_PAGE_SHIFT_128M 27
> > +#define IOMMU_PAGE_SHIFT_64M 26
> > +#define IOMMU_PAGE_SHIFT_32M 25
On 23/03/2021 06:09, 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, 64K and 16M. According
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,
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