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From: Stewart Smith <stewart@linux.vnet.ibm.com>
To: Michael Ellerman <mpe@ellerman.id.au>,
 Brian King <brking@linux.vnet.ibm.com>,
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Cc: linuxppc-dev@ozlabs.org, "dougmill\@us.ibm.com" <dougmill@us.ibm.com>
Subject: Re: [PATCH] powerpc/powernv: Turn on SCSI_AACRAID in powernv_defconfig
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Michael Ellerman <mpe@ellerman.id.au> writes:
>> 2. On a bare metal machine, if you set ipr.fast_reboot=1 on the skiboot
>>    kernel, then we should also avoid resetting the ipr adapter, so ipr
>>    init on the kernel being kexec booted from skiboot should be extremely fast. 
>
> OK, I didn't know that was an option, so that might help.
>
>> ...
>> If you've got cases where ipr init is taking a long time, I'd be
>> interested to know what scenarios are the most annoying to see if there
>> is any opportunity to improve.
>
> Yeah booting bare metal is where I see it (not using ipr.fast_reboot).

Hrm... We should probably enable that by default for petitboot then.

It'd at least cut some time off booting straight through to OS.

-- 
Stewart Smith
OPAL Architect, IBM.