Re: [Xen-devel] [RFC] change provided physical RAM map to add EBDA

[Guillaume Thouvenin <guillaume.thouvenin@xxxxxxxxxxxx>]

On Thu, Mar 15, 2007 at 10:55:26AM +0000, Keir Fraser wrote:
> On 15/3/07 08:45, "Guillaume Thouvenin" <guillaume.thouvenin@xxxxxxxxxxxx>
> wrote:
> 
> > My idea is to map the real memory region that contains EBDA to dom0. So
> > dom0 will see the real machine memory region under 640Ko (0xa0000) in is
> > own physical map.
> 
> You're creating difficulties where there are none: dom0 already has a
> mapping of all memory below 1MB. Just use isa_bus_to_virt(0x40e).

Thank you for pointing the isa_bus_to_virt(), I had missed that.
I will look this solution quickly.

Best Regards,
Guillaume

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