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Re: [Xen-devel] Mini-OS and Xenstore

To: braham othmen <braham.othmen@xxxxxxxxx>
Subject: Re: [Xen-devel] Mini-OS and Xenstore
From: Samuel Thibault <samuel.thibault@xxxxxxxxxxxxx>
Date: Tue, 5 Aug 2008 16:35:44 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Julian Munster <jmuenster@xxxxxxxxx>
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braham othmen, le Tue 05 Aug 2008 17:20:33 +0200, a écrit :
> I make some permitting

So you just moved init_console() to the end, right?  Why so?
Initializing the console lately prevents you from getting debugging
messages...  You may want to enable the xen hypervisor emergency console
by turning verbose to y in xen/Rules.mk, and read from the serial port
of your box.

> it compiles correctly but the virtual machine don't start at all.

Possibly because of something that happens before the console gets

> I think that the order must respect some chronologies,

Things depend on each other of course, that's not particular to mini-os.

For instance you need events first since basically any Xen stuff depends
on it, etc.

> But I want if there a
> possibility to write
> to any part of xenstore like the third case ??:        xenbus_write(XBT_NIL,"/
> local/count_example3",buf);
> after loading the virtual machine, i did not found what i wrote.

Domains aren't allowed to write outside their tree. If you want to allow
them, give them permissions from dom0 thanks to xenstore-chmod.


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