Re: [Xen-devel] Domain 0 crashed when booting OMAP5 uEVM

[Chen Baozi <baozich@xxxxxxxxx>]

On Aug 15, 2013, at 4:34 PM, Andrii Anisov <andrii.anisov@xxxxxxxxxxxxxxx> 
wrote:

> Chen,
> 
> It looks you have problem with DMA.
> I've checked your patches. You missed 
> 
> +static uint32_t omap5_quirks(void)
> +{
> +    return PLATFORM_QUIRK_DOM0_MAPPING_11;
> +}
> 
> In your omap5.c.
> 
> There is one more specific. OMAP5 has non ARM interconnect (it is L3 from 
> Arteris), so physically have no IOMMU at all. In future, when xen will 
> support ARM IOMMU, omap5 will stick with hacks.

Aha, so it is! I used to wonder what the PLATFORM_QUIRK_DOM0_MAPPING_11 is used 
for, but never think of that in this problem.

Now I could ssh to the dom0 successfully.

Thanks a lot!

Baozi


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