Re: [Xen-devel] Help in fixing a issue

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Fri, Feb 05, 2016 at 09:15:52PM +1100, PREETI MISHRA wrote:
> I have a patch in Xen which stores some information of VM process. I have
> another program running in Dom0 which intercept this information.
> 

I'm not sure I can parse this sentence. It's too vague for what you want
to do. For one, I don't know what "VM process" is.

> i) I want to configure my patch running in Xen to send the alert
> notification to program running in Dom0 to read data, probably using event
> channels. How to configure event channel?
> ii) Which API or command will be used to read the data from patch buffer.
> 

If you're writing user space program, code in QEMU might be a good
reference.

Please search for files like "xen_nic.c" in QEMU source code and start
from there.

You can also explore various Xen driver code inside Linux if you're
keen.

Another thing that might be of interest to you is a program lives in
xen.git called xentrace. It extracts buffer from hypervisor, which might
be what you need.

Wei.

> I am running xen 4.6 in ubuntu 14.04
> 
> regards,
> 
> Preeti

> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel


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