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* Re: [PATCH] x86/Xen: further refine add_preferred_console() invocations
       [not found] <5B30C7DD02000078001CD735@suse.com>
@ 2018-07-02 14:38 ` Juergen Gross
  2018-08-15 21:35   ` Boris Ostrovsky
  0 siblings, 1 reply; 3+ messages in thread
From: Juergen Gross @ 2018-07-02 14:38 UTC (permalink / raw)
  To: Jan Beulich, Boris Ostrovsky; +Cc: xen-devel

On 25/06/18 12:45, Jan Beulich wrote:
> As the sequence of invocations matters, add "tty" only after "hvc" when
> a VGA console is available (which is often the case for Dom0, but hardly
> ever for DomU).
> 
> Signed-off-by: Jan Beulich <jbeulich@suse.com>

Reviewed-by: Juergen Gross <jgross@suse.com>


Juergen

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^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] x86/Xen: further refine add_preferred_console() invocations
  2018-07-02 14:38 ` [PATCH] x86/Xen: further refine add_preferred_console() invocations Juergen Gross
@ 2018-08-15 21:35   ` Boris Ostrovsky
  0 siblings, 0 replies; 3+ messages in thread
From: Boris Ostrovsky @ 2018-08-15 21:35 UTC (permalink / raw)
  To: Juergen Gross, Jan Beulich; +Cc: xen-devel

On 07/02/2018 10:38 AM, Juergen Gross wrote:
> On 25/06/18 12:45, Jan Beulich wrote:
>> As the sequence of invocations matters, add "tty" only after "hvc" when
>> a VGA console is available (which is often the case for Dom0, but hardly
>> ever for DomU).
>>
>> Signed-off-by: Jan Beulich <jbeulich@suse.com>
> Reviewed-by: Juergen Gross <jgross@suse.com>
>



Applied to for-linus-4.19.

-boris

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^ permalink raw reply	[flat|nested] 3+ messages in thread

* [PATCH] x86/Xen: further refine add_preferred_console() invocations
@ 2018-06-25 10:45 Jan Beulich
  0 siblings, 0 replies; 3+ messages in thread
From: Jan Beulich @ 2018-06-25 10:45 UTC (permalink / raw)
  To: Boris Ostrovsky, Juergen Gross; +Cc: xen-devel

As the sequence of invocations matters, add "tty" only after "hvc" when
a VGA console is available (which is often the case for Dom0, but hardly
ever for DomU).

Signed-off-by: Jan Beulich <jbeulich@suse.com>
---
Slightly RFC, as there may be side effects which I simply haven't
observed myself yet.
---
 arch/x86/xen/enlighten_pv.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- 4.18-rc2/arch/x86/xen/enlighten_pv.c
+++ 4.18-rc2-x86-xen-console-order/arch/x86/xen/enlighten_pv.c
@@ -1386,8 +1386,11 @@ asmlinkage __visible void __init xen_sta
 		xen_boot_params_init_edd();
 	}
 
-	add_preferred_console("tty", 0, NULL);
+	if (!boot_params.screen_info.orig_video_isVGA)
+		add_preferred_console("tty", 0, NULL);
 	add_preferred_console("hvc", 0, NULL);
+	if (boot_params.screen_info.orig_video_isVGA)
+		add_preferred_console("tty", 0, NULL);
 
 #ifdef CONFIG_PCI
 	/* PCI BIOS service won't work from a PV guest. */



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end of thread, other threads:[~2018-08-15 21:34 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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     [not found] <5B30C7DD02000078001CD735@suse.com>
2018-07-02 14:38 ` [PATCH] x86/Xen: further refine add_preferred_console() invocations Juergen Gross
2018-08-15 21:35   ` Boris Ostrovsky
2018-06-25 10:45 Jan Beulich

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