linux-kernel - Re: [PATCH v2] powerpc/le: enable RTAS events support

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Message-ID: <8738hoenei.fsf@linux.vnet.ibm.com>
Date:	Tue, 08 Apr 2014 09:21:41 +1000
From:	Stewart Smith <stewart@...ux.vnet.ibm.com>
To:	Greg Kurz <gkurz@...ux.vnet.ibm.com>, benh@...nel.crashing.org
Cc:	linux-kernel@...r.kernel.org, geert@...ux-m68k.org,
	paulus@...ba.org, anton@...ba.org, nfont@...ux.vnet.ibm.com,
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v2] powerpc/le: enable RTAS events support

Greg Kurz <gkurz@...ux.vnet.ibm.com> writes:
> The current kernel code assumes big endian and parses RTAS events all
> wrong. The most visible effect is that we cannot honor EPOW events,
> meaning, for example, we cannot shut down a guest properly from the
> hypervisor.
>
> This new patch is largely inspired by Nathan's work: we get rid of all
> the bit fields in the RTAS event structures (even the unused ones, for
> consistency). We also introduce endian safe accessors for the fields used
> by the kernel (trivial rtas_error_type() accessor added for consistency).
>
> Cc: Nathan Fontenot <nfont@...ux.vnet.ibm.com>
> Signed-off-by: Greg Kurz <gkurz@...ux.vnet.ibm.com>

Acked-by: Stewart Smith <stewart@...ux.vnet.ibm.com>

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