Re: [PATCH V3 04/10] powerpc/mm/hash: Support 68 bit VA

2017-02-21 Thread Balbir Singh
On Sun, Feb 19, 2017 at 03:37:11PM +0530, Aneesh Kumar K.V wrote: > Inorder to support large effective address range (512TB), we want to increase > the virtual address bits to 68. But we do have platforms like p4 and p5 that > can > only do 65 bit VA. We support those platforms by limiting context

[PATCH V3 04/10] powerpc/mm/hash: Support 68 bit VA

2017-02-19 Thread Aneesh Kumar K.V
Inorder to support large effective address range (512TB), we want to increase the virtual address bits to 68. But we do have platforms like p4 and p5 that can only do 65 bit VA. We support those platforms by limiting context bits on them to 16. The protovsid -> vsid conversion is verified to work