linux-kernel - Re: [PATCH 2.6.19-rc1] ehea firmware interface based on Anton Blanchard's new hvcall interface

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Message-Id: <1159239231.5462.8.camel@localhost.localdomain>
Date:	Tue, 26 Sep 2006 12:53:51 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Jan-Bernd Themann <ossthema@...ibm.com>,
	Thomas Klein <tklein@...ibm.com>,
	Jan-Bernd Themann <themann@...ibm.com>,
	netdev <netdev@...r.kernel.org>, pmac@....ibm.com,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-ppc <linuxppc-dev@...abs.org>,
	Christoph Raisch <raisch@...ibm.com>,
	Marcus Eder <meder@...ibm.com>
Subject: Re: [PATCH 2.6.19-rc1] ehea firmware interface based on Anton
	Blanchard's new hvcall interface

On Mon, 2006-09-25 at 20:07 -0400, Jeff Garzik wrote:
> patch does not apply.
> 
> also, it would seem like varargs would be appropriate here.

Not really... these are hypervisor calls, their calling convention is
not varargs, thus we would need some conversion layer if using them,
with possible performance loss (it's also hard to do right as we are
passing args by registers, not stack).

Ben.


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