Re: [BUG] Xen build for RCAR failing

[Bertrand Marquis <Bertrand.Marquis@xxxxxxx>]

Hi Manikandan,

> On 15 Jul 2020, at 08:47, Manikandan Chockalingam (RBEI/ECF3) 
> <Manikandan.Chockalingam@xxxxxxxxxxxx> wrote:
> 
> Hello Oleksandr Tyshchenko,
> Thanks for your quick response. With Xen stable 4.13 branch, the mentioned 
> issue is solved.
>  
> Is there any document which I could refer to bring up Xen[DOM0] and have an 
> hands on ? because am currently seeing no output after this
>  
> (XEN) *** Serial input to DOM0 (type 'CTRL-a' three times to switch input)
> (XEN) Freed 324kB init memory.
> (XEN) *** Serial input to Xen (type 'CTRL-a' three times to switch input)
>  
> Attaching the complete logs for reference.

Your DOM0 is probably trying to use the wrong console.
You should add “console=hvc0” to your Dom0 linux command line (and remove any 
other console= argument)

Regards
Bertrand

>  
> Mit freundlichen Grüßen / Best regards
> 
> Chockalingam Manikandan 
> 
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> From: Oleksandr Tyshchenko <olekstysh@xxxxxxxxx> 
> Sent: Wednesday, July 15, 2020 1:00 AM
> To: Manikandan Chockalingam (RBEI/ECF3) <Manikandan.Chockalingam@xxxxxxxxxxxx>
> Cc: Bertrand Marquis <Bertrand.Marquis@xxxxxxx>; nd <nd@xxxxxxx>; 
> xen-devel@xxxxxxxxxxxxx
> Subject: Re: [BUG] Xen build for RCAR failing
>  
> Hello
>  
> [Sorry for the possible format issues]
>  
> On Tue, Jul 14, 2020 at 4:44 PM Manikandan Chockalingam (RBEI/ECF3) 
> <Manikandan.Chockalingam@xxxxxxxxxxxx> wrote:
> Hello Bertrand,
> 
> I succeeded in building the core minimal image with dunfell and its 
> compatible branches [except xen-troops (modified some files to complete the 
> build)].
> 
> But I face the following error while booting.
> 
> (XEN) ****************************************
> (XEN) Panic on CPU 0:
> (XEN) Timer: Unable to retrieve IRQ 0 from the device tree
> (XEN) ****************************************
>  
>  
> The reason for that problem *might* be in the arch timer node in your device 
> tree which contains "interrupts-extended" property instead of just 
> "interrupts". As far as I remember Xen v4.12 doesn't have required support to 
> handle "interrupts-extended".
> It went in a bit later [1]. If this is the real reason, I think you should 
> either switch to the new Xen version or modify your arch timer node in a way 
> to use the "interrupts" property [2]. I would suggest using the new Xen 
> version if possible (at least v4.13).
>  
> [1] https://lists.xenproject.org/archives/html/xen-devel/2019-05/msg01775.html
> [2] 
> https://github.com/otyshchenko1/linux/commit/c25044845f2c3678f5df789881e7a125556af6fc
>  
> -- 
> Regards,
>  
> Oleksandr Tyshchenko
> <built-u-boot-xen-bootup-error_4.13.txt>