Re: [Qemu-devel] [PATCH v1 0/3] ppc: adding some RTAS calls in tests/libqos

[David Gibson <david@gibson.dropbear.id.au>]

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On Thu, Oct 26, 2017 at 06:22:47PM -0200, Daniel Henrique Barboza wrote:
> This series implements a few RTAS hypercalls in tests/libqos
> that, used together, implement the DRC state transition described
> in PAPR 2.7+, 13.4.
> 
> This started as an attempt of implementing hot unplug qtests for the
> sPAPR machine but I've found a few issues that will require more time
> solving:
> 
> - CPU hot unplug: for some reason the machine freezes after the
> callback is returned.
> 
> - LMB hot unplug: not supported by the sPAPR machine if not
> set in CAS.
> 
> I have a feeling that the CPU hot unplug  issue might be related
> with the lack of CAS negotiation step as well, but only way to be
> sure is to further understanding how the CAS negotation interfere
> with the device hot unplug. If needed we'll have to implement the
> client architecture support hypercall as well in the future.
> 
> Until then, I believe these hypercalls have a value of their own and
> are worth being pushed upstream.

Unfortunately, these changes break the Travis build on MacOS.
> 
> 
> Daniel Henrique Barboza (3):
>   tests: adding 'check_exception' RTAS implementation
>   tests: adding 'set_indicator' RTAS call
>   tests: ibm,configure-connector RTAS call implementation
> 
>  tests/libqos/rtas.c | 105 +++++++++++++++++++++++++
>  tests/libqos/rtas.h |   5 ++
>  tests/rtas-test.c   | 218 ++++++++++++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 328 insertions(+)
> 

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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