From: Stewart Smith <stewart@linux•vnet.ibm.com>
To: Michael Ellerman <mpe@ellerman•id.au>
Cc: linuxppc-dev@ozlabs•org, dja@axtens•net
Subject: Re: [PATCH] powerpc/powernv: Remove powernv RTAS support
Date: Tue, 07 Apr 2015 15:36:00 +1000 [thread overview]
Message-ID: <m37ftozein.fsf@oc8180480414.ibm.com> (raw)
In-Reply-To: <1427276571.31588.4.camel@ellerman.id.au>
Michael Ellerman <mpe@ellerman•id.au> writes:
>> The only current place I could think this could be remotely possible
>> would be in simulator... and we should instead make the OPAL calls work
>> properly in the simulator for all the RTAS functionality (that we care
>> about).
>
> If you mean mambo, I tested that, at least the public version, and it doesn't
> provide or need RTAS.
>
> On the other sims we ran without RTAS during the Power8 bringup, though it was
> eventually used a little bit late in the cycle. In future we should be using
> skiboot, or just putting logic directly into the kernel for early bringup - or
> permanently :)
agreed on using skiboot. If we're going as far as booting a linux
kernel, the overhead of loading skiboot is next to nothing in
comparison. Or at least it should be.
next prev parent reply other threads:[~2015-04-07 5:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-12 6:27 [PATCH] powerpc/powernv: Remove powernv RTAS support Michael Ellerman
2015-03-25 5:25 ` Benjamin Herrenschmidt
2015-03-25 5:46 ` Stewart Smith
2015-03-25 9:42 ` Michael Ellerman
2015-04-07 5:36 ` Stewart Smith [this message]
2015-03-27 12:54 ` Aneesh Kumar K.V
2015-03-28 10:57 ` Michael Ellerman
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