* [Qemu-devel] pseries machine does not like older CPUs anymore
@ 2016-06-28 7:29 Thomas Huth
2016-06-28 7:58 ` Bharata B Rao
0 siblings, 1 reply; 2+ messages in thread
From: Thomas Huth @ 2016-06-28 7:29 UTC (permalink / raw)
To: Bharata B Rao, qemu-ppc; +Cc: David Gibson, QEMU Developers
Hi Bharata,
there seems to be a regression with current QEMU master: The pseries
machine does not work with older 64-bit ppc CPUs anymore. With QEMU
2.6.0, it is possible to run:
qemu-system-ppc64 -nographic -M pseries -cpu 970
or
qemu-system-ppc64 -nographic -M pseries -cpu POWER5+
but with QEMU master, I now only get a "Unable to find sPAPR CPU Core
definition" error message and then QEMU quits.
At a quick glance, this seems to be related to the new CPU hotplug
code... so could you maybe have a look?
Thanks,
Thomas
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Qemu-devel] pseries machine does not like older CPUs anymore
2016-06-28 7:29 [Qemu-devel] pseries machine does not like older CPUs anymore Thomas Huth
@ 2016-06-28 7:58 ` Bharata B Rao
0 siblings, 0 replies; 2+ messages in thread
From: Bharata B Rao @ 2016-06-28 7:58 UTC (permalink / raw)
To: Thomas Huth; +Cc: qemu-ppc, David Gibson, QEMU Developers
On Tue, Jun 28, 2016 at 09:29:33AM +0200, Thomas Huth wrote:
>
> Hi Bharata,
>
> there seems to be a regression with current QEMU master: The pseries
> machine does not work with older 64-bit ppc CPUs anymore. With QEMU
> 2.6.0, it is possible to run:
>
> qemu-system-ppc64 -nographic -M pseries -cpu 970
>
> or
>
> qemu-system-ppc64 -nographic -M pseries -cpu POWER5+
>
> but with QEMU master, I now only get a "Unable to find sPAPR CPU Core
> definition" error message and then QEMU quits.
>
> At a quick glance, this seems to be related to the new CPU hotplug
> code... so could you maybe have a look?
Yes, I had added core support for POWER7 and POWER8 only. Let me send
a patch to add the support for 970, POWER5 and POWER6.
Regards,
Bharata.
^ permalink raw reply [flat|nested] 2+ messages in thread
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