Document that chcpu -g is not supported on IBM z/VM because the detach cpu
would CLEAR the running zVM guest memory.
References:
https://www.ibm.com/docs/en/linux-on-z?topic=mc-changing-state-1
https://www.ibm.com/docs/en/zvm/7.3?topic=commands-detach-cpu
Reported-by: Heikki Ylipiessa <heikki.ylipiessa@xxxxxxxx>
Signed-off-by: Stanislav Brabec <sbrabec@xxxxxxx>
---
sys-utils/chcpu.8.adoc | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sys-utils/chcpu.8.adoc b/sys-utils/chcpu.8.adoc
index c5797dfb3..5b28ef8d2 100644
--- a/sys-utils/chcpu.8.adoc
+++ b/sys-utils/chcpu.8.adoc
@@ -37,6 +37,8 @@ Enable the specified CPUs. Enabling a CPU means that
the kernel sets it online.
*-g*, *--deconfigure* _cpu-list_::
Deconfigure the specified CPUs. Deconfiguring a CPU means that the
hypervisor removes the CPU from the virtual hardware on which the Linux
instance runs and returns it to the CPU pool. A CPU must be offline, see
*-d*, before it can be deconfigured.
++
+*chcpu -g* is not supported on IBM z/VM, CPUs are always in a
configured state there.
*-p*, *--dispatch* _mode_::
Set the CPU dispatching _mode_ (polarization). This option has an
effect only if your hardware architecture and hypervisor support CPU
polarization. Available _modes_ are:
--
2.43.0
--
Best Regards / S pozdravem,
Stanislav Brabec
software developer
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