how can I debug nested xen?

how can I debug nested xen?

[quizyjones]

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I can debug xen using console connections. However, HVM nested xen seems to not support 'xl console'. Even though I set the console according to http://www.dedoimedo.com/computers/xen-console.html, it still cannot output xen related infomation. Any suggestions? 		 	   		  

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Re: how can I debug nested xen?

[Konrad Rzeszutek Wilk]

On Thu, Dec 10, 2015 at 02:15:32PM +0000, quizyjones wrote:
> I can debug xen using console connections. However, HVM nested xen seems to not support 'xl console'. Even though I set the console according to http://www.dedoimedo.com/computers/xen-console.html, it still cannot output xen related infomation. Any suggestions? 		 	   		  

Nonsense - it works.

Did you set on Xen's (the nested one) com1=115200 console=com1?

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Re: how can I debug nested xen?

[quizy_jones]

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Yes, I thought it is console=ttyS0. Actually, that should be to dom0 kernel. Thanks.



jones
 
From: Konrad Rzeszutek Wilk
Date: 2015-12-11 03:06
To: quizyjones
CC: xen-devel@lists.xen.org
Subject: Re: [Xen-devel] how can I debug nested xen?
On Thu, Dec 10, 2015 at 02:15:32PM +0000, quizyjones wrote:
> I can debug xen using console connections. However, HVM nested xen seems to not support 'xl console'. Even though I set the console according to http://www.dedoimedo.com/computers/xen-console.html, it still cannot output xen related infomation. Any suggestions?      
 
Nonsense - it works.
 
Did you set on Xen's (the nested one) com1=115200 console=com1?
 
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> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
 
 
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Re: how can I debug nested xen?

[Konrad Rzeszutek Wilk]

On Fri, Dec 11, 2015 at 09:33:02AM +0800, quizy_jones@outlook.com wrote:
> Yes, I thought it is console=ttyS0. Actually, that should be to dom0 kernel. Thanks.

No. On the dom0 kernel it should be console=hvc0. Unless you only want to
see the Linux kernel output but not the hypervisor?
> 
> 
> 
> jones
>  
> From: Konrad Rzeszutek Wilk
> Date: 2015-12-11 03:06
> To: quizyjones
> CC: xen-devel@lists.xen.org
> Subject: Re: [Xen-devel] how can I debug nested xen?
> On Thu, Dec 10, 2015 at 02:15:32PM +0000, quizyjones wrote:
> > I can debug xen using console connections. However, HVM nested xen seems to not support 'xl console'. Even though I set the console according to http://www.dedoimedo.com/computers/xen-console.html, it still cannot output xen related infomation. Any suggestions?      
>  
> Nonsense - it works.
>  
> Did you set on Xen's (the nested one) com1=115200 console=com1?
>  
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xen.org
> > http://lists.xen.org/xen-devel
>  
>  
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel

Re: how can I debug nested xen?

[Xu, Quan]

On 11.12.2015 at 3:06pm, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote:
> On Thu, Dec 10, 2015 at 02:15:32PM +0000, quizyjones wrote:
> > I can debug xen using console connections. However, HVM nested xen seems
> to not support 'xl console'. Even though I set the console according to
> http://www.dedoimedo.com/computers/xen-console.html, it still cannot
> output xen related infomation. Any suggestions?
> 
> Nonsense - it works.
> 
> Did you set on Xen's (the nested one) com1=115200 console=com1?
> 

FYI, 'console=com1,115200,8n1' is working in my machine.

Quan