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

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Date:	Fri, 16 May 2014 10:26:53 +1000
From:	Michael Neuling <mikey@...ling.org>
To:	Pedro Alves <palves@...hat.com>
Cc:	Anshuman Khandual <khandual@...ux.vnet.ibm.com>, avagin@...nvz.org,
	oleg@...hat.com, linux-kernel@...r.kernel.org,
	michael@...erman.id.au, linuxppc-dev@...abs.org
Subject: Re: [PATCH V2 2/3] powerpc, ptrace: Enable support for
 transactional memory register sets

> 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

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