Re: [Xen-devel] Re: mini-os for Xen2

[Rick <judicator3@xxxxxxxxx>]

> > You need to be using a debug=y build of Xen to use console_io from an
> > unprivileged domain.
> >
> > Ian

Hello,

I was having some problems to boot XEN when it was compiled with
'debug=y'. But I was able to slove that. I just had to remove some of
the extra messages that get printed during the boot process when
'debug=y' is turned on and that seemed to solve the problem.

However, I still cannot get my mini-os to print something to the console. 
I modified the function "do_console_io()" in the file
xen/drivers/char/console.c  to catch whenever the mini-os tries to
write to the console.  "do_console_io()" is being invoked correctly
and the check that (current->id == 0 ) is NOT being performed since I
compiled with "debug=y".

So everything should be fine and the unprivileged mini-os should be
able to write to the console. But in the function call
"serial_puts(sercon_handle, kbuf)", sercon_handle is -1. So the
serial_puts() function is not being executed correctly.

Are there some initial setup I need to do in my mini-os in order to
use the console_io hypercalls.

Thanks
Rick


-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/xen-devel