[libvirt] qemudDomainSetMemory() / qemudDomainSetVcpus() error codes

[Kaitlin Rupert <kaitlin linux vnet ibm com>]

Hello,

I noticed qemudDomainSetMemory() / qemudDomainSetVcpus() use the 
VIR_ERR_INTERNAL_ERROR error code when the caller attempts to set the 
mem/vcpus of an active domain.

In this case, returning something like VIR_ERR_NO_SUPPORT would indicate 
that this is an invalid call - which would distinguish the error from a 
failure that occurred during the call.

Is it possible to use such a return code to indicate what is supported 
by QEMU/KVM and what isn't?

Thanks!
--
Kaitlin Rupert
IBM Linux Technology Center
kaitlin linux vnet ibm com