On 11-Sep-07, at 1:09 AM, Dor Laor wrote: > Cam Macdonell wrote: >> >> Dor Laor wrote: >> > I just tested it, it got a little deprecated over time since it >> call >> > pci_module_init instead of pci_register_* and some more irq >> function >> > deprecation.The sysfs interface in not complete and you can't >> read/write >> > from the device. >> > The qemu parameters are -vmchannel di:2258,unix:/tmp/file,server >> > 2258 is the vendor id for the device, you can use unix sockets >> ot even >> > tcp for the host end. >> > >> >> Hi Dor, >> >> Thanks, that got it up and running. But in the hypercall.c code >> (from >> the git repo) there is a "hello host" message that looks like it >> should >> be written to the host. How do I trigger that to be sent so my very >> simple "listening" program can read it? >> >> Thanks, >> Cam >> > 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. While getting this working is novel to me, it seems from your email that not much can be done with the hypercall interface in terms of host-VM or VM-to-VM communication, correct? If reading and writing don't work, how can one exchange info between VMs? I'll look forward to the virtIO implementation. Thanks, Cam ----------------------------------------------- A. Cameron Macdonell Ph.D. Student Department of Computing Science University of Alberta [EMAIL PROTECTED] ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
