linux-kernel | Search Last Month Search Last 6 Months Search All Messages | Search Since this date: | linux-kernel Home NNYTech.net |
| Previous Message | Next message | |
Date: 1970-01-01
From: Hollis Blanchard
Subject: Re: [RFC PATCH 27/33] Add the Xen virtual console driver.
Click here for more on this subject
From: Hollis Blanchard
Subject: Re: [RFC PATCH 27/33] Add the Xen virtual console driver.
Click here for more on this subject
lt 2003On Tue, 2006-07-18 at 00:00 -0700, Chris Wright wrote:
> plain text document attachment (xen-console)
> This provides a bootstrap and ongoing emergency console which is
> intended to be available from very early during boot and at all times
> thereafter, in contrast with alternatives such as UDP-based syslogd,
> or logging in via ssh. The protocol is based on a simple shared-memory
> ring buffer.
> +/*
> + * Modes:
> + * 'xencons=off' [XC_OFF]: Console is disabled.
> + * 'xencons=tty' [XC_TTY]: Console attached to '/dev/tty[0-9]+'.
> + * 'xencons=ttyS' [XC_SERIAL]: Console attached to '/dev/ttyS[0-9]+'.
> + * [XC_DEFAULT]: DOM0 -> XC_SERIAL ; all others -> XC_TTY.
> + *
> + * NB. In mode XC_TTY, we create dummy consoles for tty2-63. This suppresses
> + * warnings from standard distro startup scripts.
> + */
The console driver should not be hijacking /dev/tty or /dev/ttyS
devices. Instead, it should use its own char device, like the pSeries
hypervisor console does (/dev/hvc).
Yes, I understand that installers, inittab, and securetty files will
need to be updated. Luckily, there are a couple of distros interested in
supporting Xen who I suspect will be able to help.
--
Hollis Blanchard
IBM Linux Technology Center
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
