[PATCH v5] powerpc/powernv: Add poweroff (EPOW, DPO) events support for PowerNV platform

[trigg]

> On 18-May-2015, at 20:48, Vipin K Parashar <vipin at linux.vnet.ibm.com> wrote:
> 
> This patch adds support for FSP EPOW (Early Power Off Warning) and
> DPO (Delayed Power Off) events for PowerNV platform. EPOW events are
> generated by SPCN/FSP due to various critical system conditions that
> need system shutdown. Few examples of these conditions are high
> ambient temperature or system running on UPS power with low UPS battery.
> DPO event is generated in response to admin initiated system request.
>   Upon receipt of EPOW and DPO events host kernel invokes
> orderly_poweroff for performing graceful system shutdown. System admin
> can also add systemd service shutdown scripts to perform any specific
> actions like graceful guest shutdown upon system poweroff. libvirt-guests
> is systemd service available on recent distros for management of guests
> at system start/shutdown time.
> 
> Signed-off-by: Vipin K Parashar <vipin at linux.vnet.ibm.com>

Acked-by: trigg <mr.triggtrigg at gmail.com>