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Re: [Xen-devel] e820_host default value and libxl (not xl)

On Sat, May 21, 2016 at 04:42:11AM +0200, Marek Marczykowski-Górecki wrote:
> Hi,
> According to xl.cfg(5) " This option defaults to true (1) if any PCI
> passthrough devices are configured and false (0) otherwise."
> And indeed this behaviour is implemented in xl. But not in libxl, which
> means other libxl based toolstacks (libvirt) will not take advantage of
> this directly.
> What would be the best approach here? Duplicate that behaviour in
> libvirt (currently libvirt knows nothing about this option), or move
> that default handling to libxl? I think the later makes more sense, but
> maybe there is some reason against it?

The latter.

I wouldn't be surprised if the boundary between xl and libxl was
overlooked when implementing this flag. I've done similar things to push
xsm label handling logic from xl to libxl.


> -- 
> Best Regards,
> Marek Marczykowski-Górecki
> Invisible Things Lab
> A: Because it messes up the order in which people normally read text.
> Q: Why is top-posting such a bad thing?

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