On Wed, 2018-05-02 at 16:12 +1000, Alexey Kardashevskiy wrote: > At the moment we assume that IODA2 and newer PHBs can always do > 4K/64K/16M > IOMMU pages, however this is not the case for POWER9 and now skiboot > advertises the supported sizes via the device so we use that instead > of hard coding the mask. > > This falls back to the default mask if no "ibm,supported-tce-sizes" > is provided. This removes 16MB from the defaults as it is not > supported > everywhere; the downside of this is that hugepages backed POWER8 > guests > will fall back to 64K IOMMU pages until skiboot is updated. > > Signed-off-by: Alexey Kardashevskiy <[email protected]>
Reviewed-by: Russell Currey <[email protected]>
