[Xen-users] Bringing up xen on omap5432

[Surya Satyavolu <surya.satyavolu@xxxxxxxxxxxxx>]

Hi,

 I am trying to bring up xen on omap5432 and running into some issues.

I pretty much followed the following.

Build Xen:

# git clone git://xenbits.xen.org/xen.git

# cd xen

# make dist-xen XEN_TARGET_ARCH=arm32 CROSS_COMPILE=arm-linux-gnueabihf- CONFIG_EARLY_PRINTK=omap5432

Create uImage for Xen:

Â# mkimage -A arm -T kernel -a 0x90000000 -e 0x90000000 -C none -d "xen/xen" xen-uImage

2)Create a dtb file using the following command

Âmake ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- omap5-uevm.dtb

3)Build Uboot following instructions at

https://eewiki.net/display/linuxonarm/OMAP5432+uEVM#OMAP5432uEVM-microSDboot

But when I try to boot I am running into an undefined instruction exception.

U-Boot# bootm $xen_addr_r - $dtb_addr_r

## Booting kernel from Legacy Image at 90000000 ...

 ÂImage Name: ÂÂ

 ÂImage Type:  ARM Linux Kernel Image (uncompressed)

 ÂData Size:  Â721756 Bytes = 704.8 KiB

 ÂLoad Address: 90000000

 ÂEntry Point: Â90000000

 ÂVerifying Checksum ... OK

## Flattened Device Tree blob at 825f0000

 ÂBooting using the fdt blob at 0x825f0000

 ÂLoading Kernel Image ... OK

 Âreserving fdt memory region: addr=825f0000 size=d000

 ÂLoading Device Tree to 8fff0000, end 8fffffff ... OK

Starting kernel ...

undefined instruction

pc : [<fef910e8>] Â lr : [<fef5d75c>]

sp : fdf3cbd0 Âip : 48211080 fp : 900b035c

r10: fdf3e2fc Âr9 : fdf3cef8 r8 : 00000000

r7 : fefa4090 Âr6 : 90000000 r5 : 00000000 Âr4 : 8fff0000

r3 : 48212000 Âr2 : 00000006 r1 : 00043fff Âr0 : 00063fff

Flags: nZCv ÂIRQs off ÂFIQs off ÂMode SVC_32

Resetting CPU ...

resetting ...

On a side note how do I do an objdump of the xen and u-boot code to get to the instruction that is causing the crash?

Any instruction on how to add debug instrumentation to u-boot would also help.

Thanks!

Surya Satyavolu

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