We haven’t touched the vchan code in a while, and have pretty much stopped using vchan. We developed cross-vm dataports and events for x86[1], and will be starting work to complete those with cross-vm RPC and make that available on ARM too.
Of course that doesn’t help you right now, but just letting you know.
Ihor.
[1]
https://wiki.sel4.systems/CAmkESVM#Cross_VM_ConnectorsOn 14 Mar 2018, at 12:43 am, Chris Guikema <Chris.Guikema@dornerworks.com> wrote:
Hey Daniel,
I had tried to setup the VM, and opened an issue on the camkes-arm-vm repo -https://github.com/SEL4PROJ/camkes-arm-vm/issues/3
The VChan is quite outdated. My issue should summarize what I had to do in order to get the system to compile.
Chris
From: Devel [mailto:devel-bounces@sel4.systems] On Behalf Of Daniel Wang
Sent: Tuesday, March 13, 2018 3:49 AM
To: devel@sel4.systems
Subject: [seL4] Questions about Vchan
Hi all,
I’m trying to figure out how to use the Vchan library to setup communication between guest OS and native components. I got couple questions how you can give me some advices.
1. I saw the camkes_vchan_con_t structure in the helloworld components (camkes-arm-vm), but I could not find the implementation for vchan_con_new_connection(), vchan_con_rem_connection(), etc. Are those autogenerated by camkes? If so how it is generated?
static camkes_vchan_con_t con = {
.connect = &vchan_con_new_connection,
.disconnect = &vchan_con_rem_connection,
.get_buf = &vchan_con_get_buf,
.status = &vchan_con_status,
.alert = &vchan_con_ping,
.wait = &vevent_wait,
.poll = &vevent_poll,
.dest_dom_number = 0,
.source_dom_number = 50,
};
2. I tried to compile the Vchan support and demo helloworld components for odroid-xu. But the compile shows error due to the VM.h file (camkes-arm-vm/projects/vm/components/VM/src/cmks_vchan_vm.c:23) cannot be found. How can I generate the VM.h file?
Thanks a lot!
Best Regards
-Daniel Wang
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