Re: [PATCH RFC] misc/pvpanic: add support for normal shutdowns

[Thomas Weißschuh]

Hi Greg,

On 2024-02-13 05:41:48-0500, Michael S. Tsirkin wrote:
> On Sat, Nov 04, 2023 at 02:05:02PM +0100, Greg Kroah-Hartman wrote:
> > > diff --git a/include/uapi/misc/pvpanic.h b/include/uapi/misc/pvpanic.h
> > > index 54b7485390d3..82fc618bfbcf 100644
> > > --- a/include/uapi/misc/pvpanic.h
> > > +++ b/include/uapi/misc/pvpanic.h
> > > @@ -5,5 +5,6 @@
> > >  
> > >  #define PVPANIC_PANICKED	(1 << 0)
> > >  #define PVPANIC_CRASH_LOADED	(1 << 1)
> > > +#define PVPANIC_SHUTDOWN	(1 << 2)
> > 
> > Why are these in a uapi file?
> > 
> > And if they need to be here, why not use the proper BIT() macro for it?
> > 
> > thanks,
> > 
> > greg k-h
> 
> This is interface with hypervisor not userspace, but for PV historically
> we do this since the compatibility implications are about the same,
> hypervisors (e.g. QEMU) are mostly userspace and so it is convenient for
> them to reuse the same machinery to export the headers.
> 
> Let's stick to that, cleaner than duplicating everything I think.

could you confirm that it's fine to keep this UAPI header file?

Thomas