I just tried it and it worked. I used fc7 2.6.21 kernel, 64 bits for the guest.Re: [kvm-devel] Using VMChannel to communicate with the host. Dor Laor wrote:
>>> You need to open the unix socket you passed to the vmchannel
>>> parameter.
>>> An easier alternative is to use -vmchannel di:2258,tcp://
>>> 0:4444,server.
>>> Before the guest loads you'll need to telnet the 4444 port and then
>>> you should receive the
>>> hello world output once the driver is up.
>>> -Dor
>> I tried having a program listening on the unix domain socket.
>> Actually, the VM won't even start until a program connects to the
>> socket. I didn't get the message with my listening program, but I'll
>> try the telnet method as I haven't programmed a socket in a while so
>> I may have missed a step.
>
> Go for it, its 1 minute effort.
Hi Dor,
It didn't work. I used the following option: -vmchannel
di:2258,tcp:0:4444,server (the // confused kvm) and when the VM booted,
I connected with "telnet localhost 4444" which allowed the boot to
proceed. But, I didn't get the hello host message when I loaded the
hypercall module. dmesg did show that the module loaded successfully.
I'll dig around with it and see what else I can figure ou