Re: [Embedded-pv-devel] [Xen-devel] [PATCH RFC 13/18] xen: introduce and use 'dom0_rambase_pfn' setting for kernel Dom0

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 19.05.16 at 15:58, <oleksandr.dmytryshyn@xxxxxxxxxxxxxxx> wrote:
> Case 1: Dom0 is driver domain:
> There is a Ducati firmware which runs on dedicated M4 core and decodes
> video. This firmware uses hardcoded physical addresses for graphics
> buffers. Those addresses should be inside address-space of the driver
> domain (Dom0). Ducati firmware is proprietary and we have no ability
> to rework it. So Dom0 kernel should be placed to the configured
> address (to the DOM0 RAM bank with specific address).
> 
> Case 2: Dom0 is Thin and DomD is driver domain.
> All is the same: Ducati firmware requires special (hardcoded) addresses.

For both of these cases I would then wonder whether such
environments are actually suitable for doing virtualization on.

Jan


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