Re: [Embedded-pv-devel] Xen bring up on TI DRA7xxx (J6) EVM

[Julien Grall <julien.grall@xxxxxxxxxx>]

On 01/06/15 10:34, akshay bhat wrote:
> Hi Julien,

Hi Akshay,

> Thanks a lot for your suggestions. Actually, I found that MMIO regions
> were not mapped for some registers. For OMAP5 EVM, some registers are
> mapped in Xen itself in the .specific_mapping function. But this was not
> done for J6. Following change was needed in the Xen source to get rid of
> the crash -
> diff --git a/xen/arch/arm/platforms/omap5.c b/xen/arch/arm/platforms/omap5.c
> index 9d6e504..4ee899b 100644
> --- a/xen/arch/arm/platforms/omap5.c
> +++ b/xen/arch/arm/platforms/omap5.c
> @@ -182,6 +182,7 @@ PLATFORM_START(dra7, "TI DRA7")
>      .init_time = omap5_init_time,
>      .cpu_up = cpu_up_send_sgi,
>      .smp_init = omap5_smp_init,
> +    .specific_mapping = omap5_specific_mapping,
>  
>      .dom0_gnttab_start = 0x4b000000,
>      .dom0_gnttab_size = 0x20000,
> Had to disable few drivers in the kernel to finally get Dom0 booting on
> J6 EVM.

I never worked with this platform. I'd like some input from Andrii on it.

A fix is necessary, please send a proper patch to the xen-devel.

Regards,

-- 
Julien Grall

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