Xen On Cubieboard2 is stuck in "Starting kernel ..."

Xen On Cubieboard2 is stuck in "Starting kernel ..."

[duqi]

Hi,

We will have tested the stand alone dtb load progress according this wiki：http://wiki.xenproject.org/wiki?title=Xen_ARM_with_Virtualization_Extensions/Allwinner.

For simplicity, I compiled  ramdisk into kernel image.

The Xen version is xen4.4.0 release.
I typed the below command in u-boot,but the Xen was stuck in "Starting kernel...."

Could you give me some advice? Thank you very much.

(1)Here is the command I typed:
setenv kernel_addr_r  0x7f600000
setenv fdt_addr       0x7ec00000
setenv xen_addr_r     0x7ea00000

fatload mmc 0 ${xen_addr_r} /boot/xen
fatload mmc 0 ${fdt_addr} /boot/sun7i-a20-cubieboard2.dtb
fatload mmc 0 ${kernel_addr_r} /boot/zImage

setenv fdt_high      0xffffffff 
setenv bootargs "dom0_mem=128M sync_console console=dtuart dtuart=/soc@01c00000/serial@01c28000"

fdt addr ${fdt_addr} 0x40000   
fdt resize
fdt chosen
fdt set /chosen \#address-cells <1>
fdt set /chosen \#size-cells <1>
fdt mknod /chosen module@0
fdt set /chosen/module@0 compatible "xen,linux-zimage" "xen,multiboot-module"
fdt set /chosen/module@0 reg <${kernel_addr_r} 0xf00000>
fdt set /chosen/module@0 xen,dom0-bootargs "console=hvc0,115200n8 debug ignore_loglevel rw rootwait earlyprintk=xen clk_ignore_unused init=/init"

bootz ${xen_addr_r} - ${fdt_addr}

(2) Here is the debug information:
Kernel image @ 0x7ea00000 [ 0x000000 - 0x0cf700 ]
## Flattened Device Tree blob at 7ec00000
   Booting using the fdt blob at 0x7ec00000
   reserving fdt memory region: addr=7ec00000 size=4000
   Using Device Tree in place at 7ec00000, end 7ec06fff
WARNING: ignoring attempt to set core boot address 7ff88454 on core -1
WARNING: Not kicking secondary CPUs

Starting kernel ...


duqi.
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Re: Xen On Cubieboard2 is stuck in "Starting kernel ..."

[Bamvor Jian Zhang]

Hi, duqi

 >>>duqi <duqi_2009@163.com> wrote: 
> Hi, 
>  
> We will have tested the stand alone dtb load progress according this  
> wiki：http://wiki.xenproject.org/wiki?title=Xen_ARM_with_Virtualization_Extens 
> ions/Allwinner. 
>  
> For simplicity, I compiled  ramdisk into kernel image. 
>  
> The Xen version is xen4.4.0 release. 
> I typed the below command in u-boot,but the Xen was stuck in "Starting  
> kernel...." 
there should be some advise for debugging kernel in mailing list archives.
anyway, you could reference:
http://wiki.xenproject.org/wiki?title=Xen_ARM_with_Virtualization_Extensions/Allwinner#DomU_kernel_debug

regards

bamvor
>  
> Could you give me some advice? Thank you very much. 
>  
> (1)Here is the command I typed: 
> setenv kernel_addr_r  0x7f600000 
> setenv fdt_addr       0x7ec00000 
> setenv xen_addr_r     0x7ea00000 
>  
> fatload mmc 0 ${xen_addr_r} /boot/xen 
> fatload mmc 0 ${fdt_addr} /boot/sun7i-a20-cubieboard2.dtb 
> fatload mmc 0 ${kernel_addr_r} /boot/zImage 
>  
> setenv fdt_high      0xffffffff  
> setenv bootargs "dom0_mem=128M sync_console console=dtuart  
> dtuart=/soc@01c00000/serial@01c28000" 
>  
> fdt addr ${fdt_addr} 0x40000    
> fdt resize 
> fdt chosen 
> fdt set /chosen \#address-cells <1> 
> fdt set /chosen \#size-cells <1> 
> fdt mknod /chosen module@0 
> fdt set /chosen/module@0 compatible "xen,linux-zimage" "xen,multiboot-module" 
> fdt set /chosen/module@0 reg <${kernel_addr_r} 0xf00000> 
> fdt set /chosen/module@0 xen,dom0-bootargs "console=hvc0,115200n8 debug  
> ignore_loglevel rw rootwait earlyprintk=xen clk_ignore_unused init=/init" 
>  
> bootz ${xen_addr_r} - ${fdt_addr} 
>  
> (2) Here is the debug information: 
> Kernel image @ 0x7ea00000 [ 0x000000 - 0x0cf700 ] 
> ## Flattened Device Tree blob at 7ec00000 
>    Booting using the fdt blob at 0x7ec00000 
>    reserving fdt memory region: addr=7ec00000 size=4000 
>    Using Device Tree in place at 7ec00000, end 7ec06fff 
> WARNING: ignoring attempt to set core boot address 7ff88454 on core -1 
> WARNING: Not kicking secondary CPUs 
>  
> Starting kernel ... 
>  
>  
> duqi. 


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Re: Xen On Cubieboard2 is stuck in "Starting kernel ..."

[Julien Grall]

Hello all,

On 08/04/14 07:39, Bamvor Jian Zhang wrote:
> Hi, duqi
>
>   >>>duqi <duqi_2009@163.com> wrote:
>> Hi,
>>
>> We will have tested the stand alone dtb load progress according this
>> wiki：http://wiki.xenproject.org/wiki?title=Xen_ARM_with_Virtualization_Extens
>> ions/Allwinner.
>>
>> For simplicity, I compiled  ramdisk into kernel image.
>>
>> The Xen version is xen4.4.0 release.
>> I typed the below command in u-boot,but the Xen was stuck in "Starting
>> kernel...."
> there should be some advise for debugging kernel in mailing list archives.
> anyway, you could reference:
> http://wiki.xenproject.org/wiki?title=Xen_ARM_with_Virtualization_Extensions/Allwinner#DomU_kernel_debug

This is for debugging the kernel not Xen. His logs show that he can't 
boot xen.

duqi: Did you add CONFIG_EARLY_PRINTK=suni7 on Xen build commandline?

Regards,

-- 
Julien Grall

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Re: Xen On Cubieboard2 is stuck in "Starting kernel ..."

[Ian Campbell]

On Tue, 2014-04-08 at 14:30 +0800, duqi wrote:
> WARNING: ignoring attempt to set core boot address 7ff88454 on core -1
> WARNING: Not kicking secondary CPUs

What version of u-boot is this from?

Ian.

Re: Xen On Cubieboard2 is stuck in "Starting kernel ..."

[duqi]

At 2014-04-08 16:25:02,"Julien Grall" <julien.grall@linaro.org> wrote:

>duqi: Did you add CONFIG_EARLY_PRINTK=suni7 on Xen build commandline?

Yeah,  the xen build commandline  is： make dist-xen XEN_TARGET_ARCH=arm32 CROSS_COMPILE=arm-linux-gnueabihf- CONFIG_EARLY_PRINTK=sun7i

Many thanks.

duqi.
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Re: Xen On Cubieboard2 is stuck in "Starting kernel ..."

[Ian Campbell]

On Tue, 2014-04-08 at 16:49 +0800, duqi wrote:
> At 2014-04-08 16:25:02,"Julien Grall" <julien.grall@linaro.org> wrote:
> 
> >duqi: Did you add CONFIG_EARLY_PRINTK=suni7 on Xen build commandline?
> 
> Yeah,  the xen build commandline  is： make dist-xen
> XEN_TARGET_ARCH=arm32 CROSS_COMPILE=arm-linux-gnueabihf-
> CONFIG_EARLY_PRINTK=sun7i

If you only added CONFIG_EARLY_PRINTK after doing an initial build
without it then you may need to do a clean for it to actually take
affect.

Ian.



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