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Questions tagged [openpower]

Questions related to IBM OpenPOWER systems, e.g. OpenPOWER P8, P9 systems.

OpenPOWER is an open system based on IBM OpenPOWER P8/P9 (and future) chips, and it is open from HW design to SW firmware.

There is OpenPOWER Foundation who is an open technical community based on the POWER architecture, enabling collaborative development and opportunity for member differentiation and industry growth.

And there is OpenPOWER Portal which contains system reference designs, firmware, tool, etc.

Usually, an OpenPOWER system's firmware consists of:

And usually it runs Ubuntu, CentOS (or RHEL), OpenSUSE (or SLES).

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Detect Power8 in-core crypto through getauxval?

I'm on GCC112, which is a little-endian Power8 machine running Linux. Power8 has in-core crypto providing AES, SHA and a few other useful features. I'm trying to determine the availability of the features at runtime using getauxval. The use case is…
jww
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Deal with low latency on ipmitool commands

I am trying to work around the very high latency that I get when trying to execute some ipmitool commands on the OppenPower machine that I am connected to via ssh and on which the OpenIPMI tool is installed and configured. When I execute a command…
huzzm
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fadd vs fadds in Power ISA

Does anybody know the difference of "fadd" and "fadds" in Power ISA? As I got, it should be for single precision, but the results are like this: In a floating point register I have {0,0,1,0} When I use fadd with itself, the result is 1.7014 that…
shb8086
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How to add an immediate to a VSX register in open power ISA?

I want to increment the value of a VSX register by one. But there is no instruction in Open power ISA to add immediate to a VSX register. Does anybody have an idea?
shb8086
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