Re: [PATCH] acpi: pcihp: make pending delete expire in 5sec

[Igor Mammedov]

On Wed, 5 Apr 2023 05:59:06 -0400
"Michael S. Tsirkin" <mst@redhat.com> wrote:

> On Wed, Apr 05, 2023 at 11:24:16AM +0200, Igor Mammedov wrote:
> > > > PS:
> > > > See commit message, Windows is not affected as it doesn't
> > > > clear GPE status bits during ACPI initialization
> > > > (at least the one version I've tested with, and I won't bet
> > > > on this with other versions or staying this way)    
> > > 
> > > So I am saying linux should match windows. Clearing GPE
> > > is a bad idea as you then miss events.  
> > 
> > I'd say it depends on if guest OS is able to handle hot[un]plug
> > at boot time when it enables GPE handlers (or any other time).
> > (My point of view here, it's a guest OS policy and management
> > layer should know what installed guest is capable of and what
> > quirks to use with it)
> > 
> > I'll try to send a kernel patch to remove GPEx.status clearing,
> > though it might be more complex than it seems,
> > hence I'm quite sceptical about it.  
> 
> In the world of ACPI, windows is basically the gold standard,
> whatever it does linux has to do ;)
I'd say other way around (with their limited acpi interpreter,
it's getting better though),
While linux basically is acpica reference code.