Re: [PATCH 10/14] ps3: get firmware version

Benjamin Herrenschmidt wrote:

quoted

Anyway, that is the need, the question is where to make it
available.  I thought /proc/cpuinfo already has the platform type
(coming from the generic powerpc code), so it would be convenient
for utilities to have the firmware version there too.  I don't
think parsing the dmsg is an option for minimal configs like
bootloaders and distro installers, as they may not keep the boot
messages around, and in general doesn't seem a reliable way.  If
you can make a suggestion, I'd like to hear it.

Yeah, /proc/cpuinfo is actually a fairly convenient place for that...

Other firmwares provide a property in the device tree with version
information, for example on Power5:

$ lsprop /proc/device-tree/openprom/ibm,fw-vernum_encoded
/proc/device-tree/openprom/ibm,fw-vernum_encoded "SF225_096"