powerpc/pseries: advertise Hot Plug Event support to firmware

Michael Ellerman patch-notifications at ellerman.id.au
Mon Feb 27 21:11:05 AEDT 2017

On Tue, 2017-02-21 at 01:12:18 UTC, Michael Roth wrote:
> With the inclusion of:
>   powerpc/pseries: Implement indexed-count hotplug memory remove
>   powerpc/pseries: Implement indexed-count hotplug memory add
> we now have complete handling of the RTAS hotplug event format
> as described by PAPR via ACR "PAPR Changes for Hotplug RTAS Events".
> This capability is indicated by byte 6, bit 5 of architecture
> option vector 5, and allows for greater control over cpu/memory/pci
> hot plug/unplug operations.
> Existing pseries kernels will utilize this capability based on the
> existence of the /event-sources/hot-plug-events DT property, so we
> only need to advertise it via CAS and do not need a corresponding
> FW_FEATURE_* value to test for.
> Cc: Michael Ellerman <mpe at ellerman.id.au>
> Cc: Nathan Fontenot <nfont at linux.vnet.ibm.com>
> Cc: David Gibson <david at gibson.dropbear.id.au>
> Signed-off-by: Michael Roth <mdroth at linux.vnet.ibm.com>

Applied to powerpc next, thanks.



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