Re: [Qemu-devel] [Qemu-ppc] [PATCH RFC v1 0/3] Enable MTTCG on PPC64

[Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>]

Cédric Le Goater <clg@kaod.org> writes:

> On 04/10/2017 06:44 PM, Nikunj A Dadhania wrote:
>> Cédric Le Goater <clg@kaod.org> writes:
>> 
>>> On 04/07/2017 08:07 AM, Cédric Le Goater wrote:
>>>> On 04/07/2017 07:24 AM, Nikunj A Dadhania wrote:
>>>>> Cédric Le Goater <clg@kaod.org> writes:
>>>>
>>>> sure. pnv is still on 2.9, so I will rebase on 2.10, merge your 
>>>> patches  and tell you.
>>>
>>> The system seems to be spinning in skiboot in cpu_idle/relax when 
>>> starting the linux kernel. It finally boots, but it is rather long.
>>> David has merged enough to test if you want to give it a try.
>> 
>> I have got your powernv-ipmi-2.9 + ppc64 mttcg patches, and testing
>> them. I too saw delay during boot, but wasn't aware that its caused by
>> mttcg. I will have a look.
>
> You can use David's branch directly now, there is enough support.

Sure

> I am not sure where that is exactly, the kernel is somewhere in
> early_setup(). It might be the secondary spinloop.

Lot of prints missing, i think I need to add a console.

[    2.303286014,5] INIT: Starting kernel at 0x20010000, fdt at 0x30354908 14865 bytes)
[   43.421998779,5] OPAL: Switch to little-endian OS
 -> smp_release_cpus()
spinning_secondaries = 3
 <- smp_release_cpus()
[    0.260526] nvram: Failed to find or create lnx,oops-log partition, err -28
[    0.264448] nvram: Failed to initialize oops partition!

Regards,
Nikunj