Re: [Qemu-devel] [questions] about qemu log

[Zhang Haoyu]

>> Hi, all
>>
>> If I use qemu command directly to run vm, bypass libvirt, how to configure 
>> qemu to assure that each vm has its own log file, like vmname.log?
>> For example, VM: rhel7-net has its own log file, rhel7-net.log,
>> VM:rhel7-stor has its own log file, rhel7-stor.log.
>
>-D /path/to/unique/file/name.log
>
-D option is to configure qemu_logfile for the output logs which are controlled 
by qmp command "logfile", which can be enabled/disabled on run time.

I want to configure the log file for the output of fprintf(stderr, fmt, ...), 
.etc,
i.e., how to redirect the output of fprintf(stderr, fmt, ...), or some other 
log-interface to a specified file?

I saw the configuration in qemuStateInitialize(), libvirt code, but now I run 
the vm directly through qemu command, bypass libvirt.

Thanks,
Zhang Haoyu

>Or am I misunderstanding what you want?