From: Keir Fraser <keir@xensource.com>
To: Joe Bonasera <joe.bonasera@sun.com>
Cc: xen-devel@lists.xensource.com, edward.pilatowicz@sun.com
Subject: Re: better console support
Date: Thu, 25 Jan 2007 18:55:29 +0000 [thread overview]
Message-ID: <C1DEADA1.8401%keir@xensource.com> (raw)
In-Reply-To: <45B8FB55.1080306@sun.com>
On 25/1/07 18:47, "Joe Bonasera" <joe.bonasera@sun.com> wrote:
> The standard internal testing setup inside Sun that most
> people run with is debug Xen and debug dom0 both
> sharing either the VGA console or a single serial port console.
> We also see field support of the eventual product needing the
> ability to interact with both consoles on the same physical
> device. So we want to make the dom0 just handle sharing the console
> as automatically as possible.
You can already detect if Xen has locked out com1 or com2: try reading one
of the UART registers (or perhaps write-then-read). If you get back all ones
then you're locked out.
Maybe a vgakeep flag would be useful. We could add a SIF_VGA_IN_USE flag or
something.
-- Keir
next prev parent reply other threads:[~2007-01-25 18:55 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <E1HA4sG-0007vw-5h@host-192-168-0-1-bcn-london>
2007-01-25 17:00 ` better console support Joe Bonasera
2007-01-25 17:48 ` Keir Fraser
2007-01-25 18:47 ` Joe Bonasera
2007-01-25 18:55 ` Keir Fraser [this message]
2007-01-26 0:58 ` Edward Pilatowicz
2007-01-26 9:33 ` Keir Fraser
2007-01-26 10:29 ` John Levon
2007-01-26 12:54 ` Christoph Egger
2007-01-26 13:11 ` Keir Fraser
2007-01-26 13:50 ` Jan Beulich
2007-01-26 13:59 ` Keir Fraser
2007-01-26 16:01 ` Joe Bonasera
2007-01-31 22:56 ` Edward Pilatowicz
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