Re: isa_bus_to_virt_needs_PRIVILEGED_BUILD

[Ron Arts <ron.arts@netland.nl>]

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Okay,

So far I thought the xen0 kernel was only to be used for the
first domain (which is called domain 0 in the documentation,
hence my confusion).

After reading the docs more thoroughly, I discovered the
concept of 'driver domains' which can be used as 'backends
for other domains'.

So, apparently you can use xen0 kernels more than
once on a machine, and you can use them to support
hardware.

But what is a backend domain, and how does it connect
to a driver domain?

Is that described somewhere?

Ron


M.A. Williamson wrote:
>> Does anyone know how I can detect if some hardware is actually assigned
>> to some domain (apart from loading the device driver)? lspci
>> does not work (/proc/bus/pci not present).
> 
> 
> lspci should Just Work(TM). Are you using a xen0 kernel in that domain? 
> The xenU kernel doesn't have any PCI support.
> 
> Cheers,
> Mark
> 
>> Ron
>>
>> PS: The doc error:
>>   pci_dom0_hide=(xx.xx.x)(yy.yy.y)... should be
>>   physdev_dom0_hide=(xx:xx.x)(yy:yy.y)...
>>
>>
>> Keir Fraser wrote:
>> >>Hi,
>> >>
>> >>What does this mean? Having read the FAQ I can guess what
>> >>it means, but will this be solved eventually?
>> > > > What version of Xen is this? Looking at ioremap.c I don't see 
>> how your
>> > build can fail -- __ioremap() is conditional on
>> > CONFIG_XEN_PHYSDEV_ACCESS, as is the definition of isa_bus_to_virt in
>> > asm-xen/asm-i386/io.h. i.e., if isa_bus_to_virt is not defined, then
>> > neither is __ioremap.
>> > >  -- Keir
>> >
>>
> 

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