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From: "Marek Marczykowski-Górecki" <marmarek@invisiblethingslab.com>
To: Jason Andryuk <jandryuk@gmail.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>,
	Wei Liu <wei.liu2@citrix.com>,
	xen-devel <xen-devel@lists.xenproject.org>
Subject: Re: [RFC PATCH 06/17] libxl: create vkb device only for guests with graphics output
Date: Wed, 1 Aug 2018 23:45:06 +0200	[thread overview]
Message-ID: <20180801214506.GY1371@mail-itl> (raw)
In-Reply-To: <CAKf6xpsU0WZnjLVMQ5iqW1Z4sjQHx6WkVygBE-d4WCLJ6MTTww@mail.gmail.com>


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On Wed, Aug 01, 2018 at 10:30:14AM -0400, Jason Andryuk wrote:
> On Mon, Jul 30, 2018 at 11:56 PM, Marek Marczykowski-Górecki
> <marmarek@invisiblethingslab.com> wrote:
> > The forced vkb device is meant for better performance of qemu access
> > (at least according to ebbd2561b4cefb299f0f68a88b2788504223de18 "libxl:
> > Add a vkbd frontend/backend pair for HVM guests"), which isn't used if
> > there is no configured channel to actually access that keyboard.
> >
> > One can still add vkb device manually if needed.
> >
> > This is continuation of b053f0c4c9e533f3d97837cf897eb920b8355ed3 "libxl: do
> > not start dom0 qemu for stubdomain when not needed".
> 
> Prior to this change, was a dom0 qemu started for these entries?

AFAIR not for this device alone (unless some other condition in
libxl__need_xenpv_qemu triggers it). But when it is created but backend
not launched, it cause timeout on frontend side.

> Reviewed-by: Jason Andryuk <jandryuk@gmail.com>

-- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?

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  reply	other threads:[~2018-08-01 21:45 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-31  3:56 [RFC PATCH 00/17] Add support for qemu-xen runnning in a Linux-based stubdomain Marek Marczykowski-Górecki
2018-07-31  3:56 ` [RFC PATCH 01/17] libxl: fix qemu-trad cmdline for no sdl/vnc case Marek Marczykowski-Górecki
2018-08-01 14:24   ` Jason Andryuk
2018-07-31  3:56 ` [RFC PATCH 02/17] libxl: Add "stubdomain_version" to domain_build_info Marek Marczykowski-Górecki
2018-08-01 14:24   ` Jason Andryuk
2018-07-31  3:56 ` [RFC PATCH 03/17] libxl: Handle Linux stubdomain specific QEMU options Marek Marczykowski-Górecki
2018-08-01 14:25   ` Jason Andryuk
2018-08-01 15:55     ` Marek Marczykowski-Górecki
2018-08-02 14:45       ` Jason Andryuk
2018-07-31  3:56 ` [RFC PATCH 04/17] libxl: Build the domain with a Linux based stubdomain Marek Marczykowski-Górecki
2018-08-01 14:26   ` Jason Andryuk
2018-08-01 14:37     ` Marek Marczykowski-Górecki
2018-08-01 14:54       ` Jason Andryuk
2018-07-31  3:56 ` [RFC PATCH 05/17] libxl: use xenstore for pci hotplug qemu-in-linux-stubdom commands Marek Marczykowski-Górecki
2018-08-01 14:29   ` Jason Andryuk
2018-08-01 16:03     ` Marek Marczykowski-Górecki
2018-08-02 14:47       ` Jason Andryuk
2018-07-31  3:56 ` [RFC PATCH 06/17] libxl: create vkb device only for guests with graphics output Marek Marczykowski-Górecki
2018-08-01 14:30   ` Jason Andryuk
2018-08-01 21:45     ` Marek Marczykowski-Górecki [this message]
2018-07-31  3:56 ` [RFC PATCH 07/17] libxl: add save/restore support for qemu-xen in stubdomain Marek Marczykowski-Górecki
2018-08-01 14:35   ` Jason Andryuk
2018-08-01 21:47     ` Marek Marczykowski-Górecki
2018-07-31  3:56 ` [RFC PATCH 08/17] xl: add stubdomain related options to xl config parser Marek Marczykowski-Górecki
2018-08-01 14:35   ` Jason Andryuk
2018-08-01 21:52     ` Marek Marczykowski-Górecki
2018-07-31  3:56 ` [RFC PATCH 09/17] libxl: use \x1b to separate qemu arguments for linux stubdomain Marek Marczykowski-Górecki
2018-08-01 14:36   ` Jason Andryuk
2018-08-01 21:54     ` Marek Marczykowski-Górecki
2018-08-02  1:45       ` Simon Gaiser
2018-08-02  1:54         ` Simon Gaiser
2018-08-02 14:30           ` Jason Andryuk
2018-07-31  3:56 ` [RFC PATCH 10/17] xenconsoled: install xenstore watch for all supported consoles Marek Marczykowski-Górecki
2018-07-31  3:56 ` [RFC PATCH 11/17] xenconsoled: add support for consoles using 'state' xenstore entry Marek Marczykowski-Górecki
2018-07-31  3:56 ` [RFC PATCH 12/17] xenconsoled: make console_type->use_gnttab less confusing Marek Marczykowski-Górecki
2018-07-31  3:56 ` [RFC PATCH 13/17] xenconsoled: add support for up to 3 secondary consoles Marek Marczykowski-Górecki
2018-07-31  3:56 ` [RFC PATCH 14/17] xenconsoled: deduplicate error handling Marek Marczykowski-Górecki
2018-07-31  3:56 ` [RFC PATCH 15/17] xenconsoled: add support for non-pty output Marek Marczykowski-Górecki
2018-07-31  3:56 ` [RFC PATCH 16/17] libxl: access QMP socket via console for qemu-in-stubdomain Marek Marczykowski-Górecki
2018-07-31  3:56 ` [RFC PATCH 17/17] libxl: use xenconsoled even for multiple stubdomain's consoles Marek Marczykowski-Górecki

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