Ronny Hegewald
2011-May-29 23:52 UTC
[Xen-devel] no output on console when using 2.6.39 as dom0-kernel
This topic was brought up before for the 2.6.38 kernel one month ago
http://lists.xensource.com/archives/html/xen-devel/2011-04/msg01345.html
It wasnt mentioned there that upstream has some missing functionality for the
console, so i assume that it should work.
First my config: xen 4.1, 2.6.39 upstream linux-kernel, both 32-bit
As soon the dom0-kernel is booting all output is cleared and the screen stays
black, but the kernel is booting fine and i can login and start programs etc.
When i start X the output on the screen works normally. As soon i finish X,
the screen turns black again.
I added the following patch to the 2.6.39-er kernel, and the output on the
console works fine for me on 32 and 64 bit dom0 kernel (the following patches
are from Jeremys xen repository).
commit 09e5e7caf4eac83c010ec3d209cc3dfbe1444ae0
Date: Mon Feb 9 12:05:54 2009 -0800
xen: allow enable use of VGA console on dom0
There was another patch to make the vga-console work with 32-bit-kernel. But
for me it worked without it.
commit adec49def29110b1748a861c8a2cee785a0d1052
Date: Mon Apr 27 13:03:13 2009 -0700
xen/i386: make sure initial VGA/ISA mappings are not overridden
Or ss the console suppossed to work without this patches?
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Ronny Hegewald
2011-May-30 19:18 UTC
[Xen-devel] no output on console when using 2.6.39 as dom0-kernel
This topic was brought up before for the 2.6.38 kernel one month ago
http://lists.xensource.com/archives/html/xen-devel/2011-04/msg01345.html
In this thread it wasn''t mentioned that upstream has some missing
functionality for vga-console support (as far i have seen), so i assume that
it should work.
First my config: xen 4.1, 2.6.39 upstream linux-kernel, both 32-bit
As soon the dom0-kernel is booting all output is cleared and the screen stays
black, but the kernel is booting fine and i can login and start programs etc.
When i start X in the dom0 the output on the screen appears normally. As soon
i finish X, the screen turns black again.
I added the following patch to the 2.6.39-er kernel, and the output on the
console works fine for me on 32 and 64 bit dom0 kernel (the following patches
are from Jeremys xen repository).
commit 09e5e7caf4eac83c010ec3d209cc3dfbe1444ae0
Date: Mon Feb 9 12:05:54 2009 -0800
xen: allow enable use of VGA console on dom0
There was another patch to make the vga-console work with 32-bit-kernel. But
for me it worked without it.
commit adec49def29110b1748a861c8a2cee785a0d1052
Date: Mon Apr 27 13:03:13 2009 -0700
xen/i386: make sure initial VGA/ISA mappings are not overridden
Or ss the console suppossed to work without this patches?
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Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
Ian Campbell
2011-May-31 13:59 UTC
Re: [Xen-devel] no output on console when using 2.6.39 as dom0-kernel
On Mon, 2011-05-30 at 20:18 +0100, Ronny Hegewald wrote:> This topic was brought up before for the 2.6.38 kernel one month ago > > http://lists.xensource.com/archives/html/xen-devel/2011-04/msg01345.html > > In this thread it wasn''t mentioned that upstream has some missing > functionality for vga-console support (as far i have seen), so i assume that > it should work. > > First my config: xen 4.1, 2.6.39 upstream linux-kernel, both 32-bit > > As soon the dom0-kernel is booting all output is cleared and the screen stays > black, but the kernel is booting fine and i can login and start programs etc. > > When i start X in the dom0 the output on the screen appears normally. As soon > i finish X, the screen turns black again. > > I added the following patch to the 2.6.39-er kernel, and the output on the > console works fine for me on 32 and 64 bit dom0 kernel (the following patches > are from Jeremys xen repository). > > > commit 09e5e7caf4eac83c010ec3d209cc3dfbe1444ae0 > Date: Mon Feb 9 12:05:54 2009 -0800 > xen: allow enable use of VGA console on dom0It certainly seems likely that this would be required, thanks for tracking it down. Konrad, will you pick this one up?> There was another patch to make the vga-console work with 32-bit-kernel. But > for me it worked without it. > > > commit adec49def29110b1748a861c8a2cee785a0d1052 > Date: Mon Apr 27 13:03:13 2009 -0700 > xen/i386: make sure initial VGA/ISA mappings are not overridden > > > Or ss the console suppossed to work without this patches?Konrad has been reworking the handling of _PAGE_IO recently, it''s quite possible this one is no longer relevant. Ian.> > > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Konrad Rzeszutek Wilk
2011-May-31 14:50 UTC
Re: [Xen-devel] no output on console when using 2.6.39 as dom0-kernel
On Sun, May 29, 2011 at 11:52:46PM +0000, Ronny Hegewald wrote:> This topic was brought up before for the 2.6.38 kernel one month ago > > http://lists.xensource.com/archives/html/xen-devel/2011-04/msg01345.html > > It wasnt mentioned there that upstream has some missing functionality for the > console, so i assume that it should work. > > First my config: xen 4.1, 2.6.39 upstream linux-kernel, both 32-bit > > As soon the dom0-kernel is booting all output is cleared and the screen stays > black, but the kernel is booting fine and i can login and start programs etc.Nice!> > When i start X the output on the screen works normally. As soon i finish X, > the screen turns black again.When you switch consoles do you go to text mode?> > I added the following patch to the 2.6.39-er kernel, and the output on the > console works fine for me on 32 and 64 bit dom0 kernel (the following patches > are from Jeremys xen repository). > > > commit 09e5e7caf4eac83c010ec3d209cc3dfbe1444ae0Thank you for finding that commit. Let me stick on the queue.> Date: Mon Feb 9 12:05:54 2009 -0800 > xen: allow enable use of VGA console on dom0 > > > There was another patch to make the vga-console work with 32-bit-kernel. But > for me it worked without it. > > > commit adec49def29110b1748a861c8a2cee785a0d1052 > Date: Mon Apr 27 13:03:13 2009 -0700 > xen/i386: make sure initial VGA/ISA mappings are not overridden > > > Or ss the console suppossed to work without this patches? > > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Konrad Rzeszutek Wilk
2011-May-31 15:12 UTC
Re: [Xen-devel] no output on console when using 2.6.39 as dom0-kernel
> > I added the following patch to the 2.6.39-er kernel, and the output on the > > console works fine for me on 32 and 64 bit dom0 kernel (the following patches > > are from Jeremys xen repository). > > > > > > commit 09e5e7caf4eac83c010ec3d209cc3dfbe1444ae0 > > Date: Mon Feb 9 12:05:54 2009 -0800 > > xen: allow enable use of VGA console on dom0 > > It certainly seems likely that this would be required, thanks for > tracking it down. > > Konrad, will you pick this one up? >Yup. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Ronny Hegewald
2011-Jun-01 19:37 UTC
Re: [Xen-devel] no output on console when using 2.6.39 as dom0-kernel
On Tuesday 31 May 2011, you wrote:> On Sun, May 29, 2011 at 11:52:46PM +0000, Ronny Hegewald wrote: > > This topic was brought up before for the 2.6.38 kernel one month ago > > > > http://lists.xensource.com/archives/html/xen-devel/2011-04/msg01345.html > > > > It wasnt mentioned there that upstream has some missing functionality for > > the console, so i assume that it should work. > > > > First my config: xen 4.1, 2.6.39 upstream linux-kernel, both 32-bit > > > > As soon the dom0-kernel is booting all output is cleared and the screen > > stays black, but the kernel is booting fine and i can login and start > > programs etc. > > Nice! > > > When i start X the output on the screen works normally. As soon i finish > > X, the screen turns black again. > > When you switch consoles do you go to text mode?Yes, simple 80x25 text-mode. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel