[PATCH V2 2/3] powerpc, ptrace: Enable support for transactional memory register sets

[Michael Neuling]

> So in sum, it very much looks like the intention is for
> PTRACE_GETREGSET/PTRACE_SETREGSET to return ENODEV in the
> case the regset doesn't exist on the running machine, and then
> it looks like at least x86 works that way.

Good point... agreed.  We should ENODEV when we don't have TM hardware
(like POWER7).

Mikey