Re: [PATCH v2 05/13] x86/irq: Reserve a per CPU IDT vector for posted MSIs

[Sean Christopherson]

On Fri, Apr 12, 2024, Kevin Tian wrote:
> > From: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
> > Sent: Saturday, April 6, 2024 6:31 AM
> > 
> > +/*
> > + * Posted interrupt notification vector for all device MSIs delivered to
> > + * the host kernel.
> > + */
> > +#define POSTED_MSI_NOTIFICATION_VECTOR	0xeb
> >  #define NR_VECTORS			 256
> > 
> 
> Every interrupt is kind of a notification.

FWIW, I find value in having "notification" in the name to differentiate between
the IRQ that is notifying the CPU that there's a posted IRQ to be processed, and
the posted IRQ itself.