Re: [Xen-devel] Failed to launch xen on J6 evm

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Fri, 2015-03-06 at 20:03 +0000, Korupol, Naveen (EXT) wrote:
> I am using J6 evm.

What is one of them?

> played with couple different u-boots

Does your u-boot launch the kernel (AKA Xen in this case) in NS.HYP
mode?

> If there are any probable fixes/hints for bringing up XEN on J6 evm.

Given where things are apparently hanging I think the first step would
be to enable early printk for your platform.

See docs/misc/arm/early-printk.txt and the long ifeq chain in
xen/arch/arm/Rules.mk.

If the UART on your platform is one of the existing ones in
xen/arch/arm/arm*/debug*.inc then this is pretty easy.

If not then you just need to provide two ASM macros early_uart_ready and
early_uart_transmit which is pretty trivial for every UART I've ever
seen -- see the existing debug*.inc for examples.

Ian.




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