Re: [Xen-devel] what's the best way for a DomU module send control message to Dom0 via control interface?

[Anthony Liguori <aliguori@xxxxxxxxxx>]

On Wed, 2005-01-19 at 13:53, Xin Zhao wrote:
> One way seems to be ctrl_if_send_message_block like functions. I did
> register a receiver in a Dom0 kernel module, then use
> ctrl_if_send_message_block() to send msg to Dom0 module, if the Dom0
> module gets the msg, it should print out some information. Unfortunately,
> after DomU module sent out msg, nothing happened. The msg seems to be lost
> by Dom0, why?

Are you running Xend?  Xend will catch any unknown requests and drop
them.

Regards,

> I also tried to use a revised xu_port_send_request() function in Dom0 to
> send msg over control interface to a DomU module, it works, but when I
> tried to use the same way to send a msg from DomU to Dom0, again, Dom0
> lost this msg.
> 
> Can somebody help me out? Thanks in advance!
> 
> -x
> 
> 
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-- 
Anthony Liguori
Linux Technology Center (LTC) - IBM Austin
E-mail: aliguori@xxxxxxxxxx
Phone: (512) 838-1208




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