Re: [PATCH v2] sparc64: Add support for Application Data Integrity (ADI)
- From
- David Miller <davem@davemloft.net>
- Date
- 2016-03-07 19:20:05
- Also in
- linux-arch, linux-mm, lkml, sparclinux
- Reply to
- Andy Lutomirski, 2016-03-07
From: Andy Lutomirski <luto@amacapital.net> Date: Mon, 7 Mar 2016 10:49:57 -0800
What data structure or structures changes when this stxa instruction happens?
An internal table, maintained by the CPU and/or hypervisor, and if in physical
addresses then in a region which is only accessible by the hypervisor.
The table is not accessible by the kernel at all via loads or stores.