From: Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
To: Arjan van de Ven <arjan@infradead.org>
Cc: virtualization@lists.osdl.org,
Ian Pratt <ian.pratt@xensource.com>,
xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org,
Chris Wright <chrisw@sous-sol.org>
Subject: Re: [RFC PATCH 29/35] Add the Xen virtual console driver.
Date: Wed, 22 Mar 2006 09:29:48 +0000 [thread overview]
Message-ID: <bc0c4e54904884203c173fbc9558ec65@cl.cam.ac.uk> (raw)
In-Reply-To: <1143016996.2955.24.camel@laptopd505.fenrus.org>
On 22 Mar 2006, at 08:43, Arjan van de Ven wrote:
>> 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.
>
> there already exist early consoles. Please just use that infrastructure
> instead.
By 'early console' I don't mean it's an alternative to the early_printk
infrastructure. It's simply an easy way to characters out of the guest
when other alternatives (such as using the virtual network device) are
unusable.
-- Keir
next prev parent reply other threads:[~2006-03-22 9:29 UTC|newest]
Thread overview: 115+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-22 6:30 [RFC PATCH 00/35] Xen i386 paravirtualization support Chris Wright
2006-03-22 6:30 ` [RFC PATCH 01/35] Add XEN config options and disable unsupported config options Chris Wright
2006-03-22 6:30 ` [RFC PATCH 02/35] Makefile support to build Xen subarch Chris Wright
2006-03-22 6:30 ` [RFC PATCH 03/35] Add Xen interface header files Chris Wright
2006-03-22 6:30 ` [RFC PATCH 04/35] Hypervisor " Chris Wright
2006-03-22 8:28 ` Arjan van de Ven
2006-03-22 9:31 ` Keir Fraser
2006-03-22 9:46 ` Arjan van de Ven
2006-03-22 11:32 ` David Schwartz
2006-03-22 14:29 ` Keir Fraser
2006-03-22 6:30 ` [RFC PATCH 05/35] Add sync bitops Chris Wright
2006-03-22 6:30 ` [RFC PATCH 06/35] Add vmlinuz build target Chris Wright
2006-03-22 6:30 ` [RFC PATCH 07/35] Make LOAD_OFFSET defined by subarch Chris Wright
2006-03-22 22:57 ` Dan Hecht
2006-03-27 8:18 ` Gerd Hoffmann
2006-03-22 6:30 ` [RFC PATCH 08/35] Add Xen-specific memory management definitions Chris Wright
2006-03-22 6:30 ` [RFC PATCH 09/35] Change __FIXADDR_TOP to leave room for the hypervisor Chris Wright
2006-03-22 17:27 ` Anthony Liguori
2006-03-22 17:32 ` Chris Wright
2006-03-22 6:30 ` [RFC PATCH 10/35] Add a new head.S start-of-day file for booting on Xen Chris Wright
2006-03-22 13:43 ` Andi Kleen
2006-03-22 18:58 ` Chris Wright
2006-03-22 18:45 ` Andi Kleen
2006-03-22 19:26 ` Chris Wright
2006-03-22 6:30 ` [RFC PATCH 11/35] Add support for Xen to entry.S Chris Wright
2006-03-22 13:55 ` Andi Kleen
2006-03-22 17:24 ` [Xen-devel] " Zachary Amsden
2006-03-22 6:30 ` [RFC PATCH 12/35] Add start-of-day setup hooks to subarch Chris Wright
2006-03-22 6:30 ` [RFC PATCH 13/35] Support loading an initrd when running on Xen Chris Wright
2006-03-22 14:22 ` Andi Kleen
2006-03-22 19:20 ` Chris Wright
2006-03-22 6:30 ` [RFC PATCH 14/35] subarch modify CPU capabilities Chris Wright
2006-03-22 8:35 ` [Xen-devel] " Zachary Amsden
2006-03-22 9:33 ` Keir Fraser
2006-03-22 19:29 ` Chris Wright
2006-03-22 6:30 ` [RFC PATCH 15/35] subarch support for controlling interrupt delivery Chris Wright
2006-03-22 6:30 ` [RFC PATCH 16/35] subarch support for interrupt and exception gates Chris Wright
2006-03-22 13:45 ` Andi Kleen
2006-03-22 20:54 ` Chris Wright
2006-03-22 6:30 ` [RFC PATCH 17/35] Segment register changes for Xen Chris Wright
2006-03-22 14:24 ` Andi Kleen
2006-03-22 19:33 ` Chris Wright
2006-03-23 0:16 ` Zachary Amsden
2006-03-22 6:30 ` [RFC PATCH 18/35] Support gdt/idt/ldt handling on Xen Chris Wright
2006-03-22 14:30 ` Andi Kleen
2006-03-22 17:51 ` [Xen-devel] " Zachary Amsden
2006-03-22 17:36 ` Andi Kleen
2006-03-22 6:30 ` [RFC PATCH 19/35] subarch support for control register accesses Chris Wright
2006-03-22 8:55 ` Zachary Amsden
2006-03-22 21:45 ` Chris Wright
2006-03-22 6:31 ` [RFC PATCH 20/35] subarch stack pointer update Chris Wright
2006-03-22 6:31 ` [RFC PATCH 21/35] subarch TLB support Chris Wright
2006-03-22 6:31 ` [RFC PATCH 22/35] subarch suport for idle loop (NO_IDLE_HZ for Xen) Chris Wright
2006-03-22 6:31 ` [RFC PATCH 23/35] Add support for Xen event channels Chris Wright
2006-03-22 8:36 ` Arjan van de Ven
2006-03-22 11:30 ` Keir Fraser
2006-03-22 14:07 ` Andi Kleen
2006-03-22 6:31 ` [RFC PATCH 24/35] subarch support for mask value for irq nubmers Chris Wright
2006-03-22 6:31 ` [RFC PATCH 25/35] Add Xen time abstractions Chris Wright
2006-03-22 8:38 ` Arjan van de Ven
2006-03-22 19:37 ` Chris Wright
2006-03-22 22:26 ` [Xen-devel] " Dan Hecht
2006-03-23 3:23 ` [Xen-devel] " Eli Collins
2006-03-23 6:47 ` Chris Wright
2006-03-22 6:31 ` [RFC PATCH 26/35] Add Xen subarch reboot support Chris Wright
2006-03-22 8:40 ` Arjan van de Ven
2006-03-22 10:22 ` Keir Fraser
2006-03-22 10:39 ` Arjan van de Ven
2006-03-22 10:52 ` Keir Fraser
2006-03-22 14:21 ` Andi Kleen
2006-03-22 20:59 ` Pavel Machek
2006-03-22 6:31 ` [RFC PATCH 27/35] Add nosegneg capability to the vsyscall page notes Chris Wright
2006-03-22 6:31 ` [RFC PATCH 28/35] add support for Xen feature queries Chris Wright
2006-03-22 8:42 ` Arjan van de Ven
2006-03-22 6:31 ` [RFC PATCH 29/35] Add the Xen virtual console driver Chris Wright
2006-03-22 8:43 ` Arjan van de Ven
2006-03-22 9:29 ` Keir Fraser [this message]
2006-03-22 14:17 ` Andi Kleen
2006-03-22 16:00 ` Anthony Liguori
2006-03-22 16:07 ` Keir Fraser
2006-03-22 16:14 ` Anthony Liguori
2006-03-22 6:31 ` [RFC PATCH 30/35] Add generic_page_range() function Chris Wright
2006-03-22 8:51 ` Zachary Amsden
2006-03-22 9:27 ` [Xen-devel] " Keir Fraser
2006-03-22 11:21 ` Nick Piggin
2006-03-22 14:33 ` Keir Fraser
2006-03-22 15:35 ` Keir Fraser
2006-03-23 0:15 ` Nick Piggin
2006-03-23 0:26 ` Nick Piggin
2006-03-22 6:31 ` [RFC PATCH 31/35] Add Xen grant table support Chris Wright
2006-03-22 8:45 ` Arjan van de Ven
2006-03-22 18:38 ` Chris Wright
2006-03-22 6:31 ` [RFC PATCH 32/35] Add Xen driver utility functions Chris Wright
2006-03-22 14:12 ` Andi Kleen
2006-03-22 6:31 ` [RFC PATCH 33/35] Add the Xenbus sysfs and virtual device hotplug driver Chris Wright
2006-03-22 8:53 ` Arjan van de Ven
2006-03-22 11:14 ` Keir Fraser
2006-03-22 6:31 ` [RFC PATCH 34/35] Add the Xen virtual network device driver Chris Wright
2006-03-22 8:59 ` Arjan van de Ven
2006-03-22 15:29 ` James Morris
2006-03-22 17:17 ` Stephen Hemminger
2006-03-22 6:31 ` [RFC PATCH 35/35] Add Xen virtual block " Chris Wright
2006-03-22 16:39 ` Anthony Liguori
2006-03-22 16:54 ` Christoph Hellwig
2006-03-27 8:42 ` Gerd Hoffmann
2006-03-22 17:15 ` [RFC PATCH 00/35] Xen i386 paravirtualization support Anthony Liguori
2006-03-22 17:27 ` Chris Wright
2006-03-22 17:50 ` Anthony Liguori
2006-05-09 8:49 Chris Wright
2006-05-09 7:00 ` [RFC PATCH 29/35] Add the Xen virtual console driver Chris Wright
2006-05-09 13:26 ` Andi Kleen
2006-05-09 15:03 ` Christian Limpach
2006-05-13 12:27 ` Andrew Morton
2006-05-13 12:51 ` Nick Piggin
2006-05-13 14:29 ` Andrew Morton
2006-05-13 14:43 ` Nick Piggin
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