Re: [Xen-devel] [PATCH] libacpi: report PCI slots as enabled only for hotpluggable devices

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Thu, May 23, 2019 at 02:57:49AM -0600, Jan Beulich wrote:
> >>> On 22.05.19 at 20:10, <igor.druzhinin@xxxxxxxxxx> wrote:
> > DSDT for qemu-xen lacks _STA method of PCI slot object. If _STA method
> > doesn't exist then the slot is assumed to be always present and active
> > which in conjunction with _EJ0 method makes every device ejectable for
> > an OS even if it's not the case.
> > 
> > qemu-kvm is able to dynamically add _EJ0 method only to those slots
> > that either have hotpluggable devices or free for PCI passthrough.
> > As Xen lacks this capability we cannot use their way.
> > 
> > qemu-xen-traditional DSDT has _STA method which only reports that
> > the slot is present if there is a PCI devices hotplugged there.
> > This is done through querying of its PCI hotplug controller.
> > qemu-xen has similar capability that reports if device is "hotpluggable
> > or absent" which we can use to achieve the same result.
> > 
> > Signed-off-by: Igor Druzhinin <igor.druzhinin@xxxxxxxxxx>
> 
> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
> 

Jan, FAOD since you're the maintainer I'm expecting you to push this
patch yourself.

Wei.

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