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Subject: Re: [PATCH V2 2/3] powerpc, ptrace: Enable support for
 transactional memory register sets
From: Michael Neuling <mikey@neuling.org>
To: Pedro Alves <palves@redhat.com>
Date: Fri, 16 May 2014 10:26:53 +1000
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Cc: avagin@openvz.org, linux-kernel@vger.kernel.org, oleg@redhat.com,
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> 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