Re: [PATCH 3/3] Enable storage keys for radix - user mode execution

2016-11-10 Thread Balbir Singh
On 09/11/16 03:15, Aneesh Kumar K.V wrote: > Balbir Singh writes: > >> ISA 3 defines new encoded access authority that allows instruction >> access prevention in privileged mode and allows normal access >> to problem state. This patch just enables IAMR (Instruction

Re: [PATCH 3/3] Enable storage keys for radix - user mode execution

2016-11-08 Thread Aneesh Kumar K.V
Balbir Singh writes: > ISA 3 defines new encoded access authority that allows instruction > access prevention in privileged mode and allows normal access > to problem state. This patch just enables IAMR (Instruction Authority > Mask Register), enabling AMR would require

[PATCH 3/3] Enable storage keys for radix - user mode execution

2016-11-01 Thread Balbir Singh
ISA 3 defines new encoded access authority that allows instruction access prevention in privileged mode and allows normal access to problem state. This patch just enables IAMR (Instruction Authority Mask Register), enabling AMR would require more work. I've tested this with a buggy driver and a