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Re: [Qemu-devel] [PATCH 22/23] gtk: show a window for each graphical Qem
From: |
Anthony Liguori |
Subject: |
Re: [Qemu-devel] [PATCH 22/23] gtk: show a window for each graphical QemuConsole |
Date: |
Thu, 21 Mar 2013 13:25:04 -0500 |
User-agent: |
Notmuch/0.13.2+93~ged93d79 (http://notmuchmail.org) Emacs/23.3.1 (x86_64-pc-linux-gnu) |
Gerd Hoffmann <address@hidden> writes:
> Hi,
>
>>>>> If so, we're going to need to model what the hardware actually
>>>>> does, which is that there's a single connection on the back
>>>>> of the box for a monitor, and it's guest software controllable
>>>>> which of the two display devices is routed to the connection...
>>>>
>>>> How does this work in 1.4?
>>>
>>> I guess the second display device was never ever shown anywhere?
>>
>> Correct. We rely on "last display device wins" plus the fact this
>> happens to match up with the device Linux chooses for display.
>> This is obviously not great but up til now QEMU hasn't actually
>> supported multiple display devices so I haven't worried about it.
>
> Ok.
>
> I think the most sensible way to handle this is to implement the output
> routing device, make it own the (single) QemuConsole, and depending on
> the router state the one or the other display device is allowed to
> render to the QemuConsole.
Where does the switching happen in hardware? Is this two devices with a
DVI port with a switch on it to have a single output port or it is
something more sophisticated where there are two memory regions and a
register is used to select which one is written out?
Regards,
Anthony Liguori
- [Qemu-devel] [PATCH 23/23] qxl: register QemuConsole for secondary cards, (continued)
- [Qemu-devel] [PATCH 23/23] qxl: register QemuConsole for secondary cards, Gerd Hoffmann, 2013/03/20
- [Qemu-devel] [PATCH 22/23] gtk: show a window for each graphical QemuConsole, Gerd Hoffmann, 2013/03/20
- Re: [Qemu-devel] [PATCH 22/23] gtk: show a window for each graphical QemuConsole, Anthony Liguori, 2013/03/20
- Message not available
- Re: [Qemu-devel] [PATCH 22/23] gtk: show a window for each graphical QemuConsole, Peter Maydell, 2013/03/20
- Re: [Qemu-devel] [PATCH 22/23] gtk: show a window for each graphical QemuConsole, Gerd Hoffmann, 2013/03/21
- Re: [Qemu-devel] [PATCH 22/23] gtk: show a window for each graphical QemuConsole, Gerd Hoffmann, 2013/03/21
- Re: [Qemu-devel] [PATCH 22/23] gtk: show a window for each graphical QemuConsole, Peter Maydell, 2013/03/21
- Re: [Qemu-devel] [PATCH 22/23] gtk: show a window for each graphical QemuConsole, Gerd Hoffmann, 2013/03/21
- Re: [Qemu-devel] [PATCH 22/23] gtk: show a window for each graphical QemuConsole,
Anthony Liguori <=
- Re: [Qemu-devel] [PATCH 22/23] gtk: show a window for each graphical QemuConsole, Peter Maydell, 2013/03/22
[Qemu-devel] [PATCH 17/23] console: gui timer fixes, Gerd Hoffmann, 2013/03/20
[Qemu-devel] [PATCH 19/23] console: add qemu_console_is_*, Gerd Hoffmann, 2013/03/20
[Qemu-devel] [PATCH 14/23] console: move gui_update+gui_setup_refresh from vl.c into console.c, Gerd Hoffmann, 2013/03/20
[Qemu-devel] [PATCH 12/23] console: simplify screendump, Gerd Hoffmann, 2013/03/20
[Qemu-devel] [PATCH 20/23] console: allow pinning displaychangelisteners to consoles, Gerd Hoffmann, 2013/03/20
[Qemu-devel] [PATCH 16/23] console: add GraphicHwOps, Gerd Hoffmann, 2013/03/20