* [QUESTION] Does PowerVM populate the rtas-sensors device-tree property?
@ 2026-11-01 14:47 Bui Nguyen Nhu Quynh
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From: Bui Nguyen Nhu Quynh @ 2026-11-01 14:47 UTC (permalink / raw)
To: linuxppc-dev; +Cc: mpe
Hi,
I am trying to determine whether PowerVM firmware populates the rtas-sensors device-tree property on the /rtas node. The kernel's ppc_rtas_sensors_show() in arch/powerpc/kernel/rtas-proc.c reads it, but I have found no producer in QEMU, SLOF, or the kernel documentation.
On any PowerVM system, the answer is one command:
ls -l /proc/device-tree/rtas/rtas-sensors
od -An -tx1 /proc/device-tree/rtas/rtas-sensors
If the file exists, could you report the byte output? If it does not exist, that also answers the question.
I have a QEMU patch and a local reproducer if useful, but the firmware-side answer is the only thing I cannot determine locally.
Thanks.
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