Re: [PATCH v5] powerpc/pseries: read the lpar name from the firmware

[Nathan Lynch]

Laurent Dufour <ldufour@xxxxxxxxxxxxx> writes:
> The LPAR name may be changed after the LPAR has been started in the HMC.
> In that case lparstat command is not reporting the updated value because it
> reads it from the device tree which is read at boot time.
>
> However this value could be read from RTAS.
>
> Adding this value in the /proc/powerpc/lparcfg output allows to read the
> updated value.
>
> However the hypervisor, like Qemu/KVM, may not support this RTAS
> parameter. In that case the value reported in lparcfg is read from the
> device tree and so is not updated accordingly.
>
> Cc: Nathan Lynch <nathanl@xxxxxxxxxxxxx>
> Signed-off-by: Laurent Dufour <ldufour@xxxxxxxxxxxxx>
> ---
> v5:
>  fallback to the device tree value if RTAS is not providing the value.
> v4:
>  address Nathan's new comments limiting size of the buffer.
> v3:
>  address Michael's comments.
> v2:
>  address Nathan's comments.
>  change title to partition_name aligning with existing partition_id

Thanks Laurent.

Reviewed-by: Nathan Lynch <nathanl@xxxxxxxxxxxxx>