On 19/08/16 18:52, Aneesh Kumar K.V wrote: > From: Benjamin Herrenschmidt <b...@kernel.crashing.org> > > Currently we turn the MMU off after copying the image, and we make > sure there is no overlap between the hash table and the target pages > in that case. > > That doesn't work for Radix however. In that case, the page tables > are scattered and we can't really enforce that the target of the > image isn't overlapping one of them. > > So instead, let's turn the MMU off before copying the image in radix > mode. Thankfully, in radix mode, even under a hypervisor, we know we > don't have the same kind of RMA limitations that hash mode has. > > While at it, also turn the MMU off early when using hash in non-LPAR > mode, that way we can get rid of the collision check completely. > > Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org> > Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
Looks good Acked-by: Balbir Singh <bsinghar...@gmail.com>
