Re: [PATCH] pci-assign: Hide ioport regions on lacking sysfs support

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On Tue, 2012-05-29 at 20:13 +0300, Avi Kivity wrote:
> On 05/29/2012 08:04 PM, Jan Kiszka wrote:
> > As suggested by Alex: Instead of failing if the kernel does not allow us
> > to speak to an ioport region, warn the user but, hide the region and
> > continue.
> 
> 
> Should we not, in addition, abort if the region is actually used?  A
> guest malfunction is likely if we don't.

The only way we could know that it's used is if it's the device ends up
with no valid regions as a result of this.  Otherwise it's dependent on
both the device and the driver whether it can still function without the
i/o port regions.  Thanks,

Alex



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