linux-kernel - RE: [PATCH v2 05/13] x86/irq: Reserve a per CPU IDT vector for posted MSIs

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Message-ID: <BN9PR11MB527609928EA2290709CDB3E78C042@BN9PR11MB5276.namprd11.prod.outlook.com>
Date: Fri, 12 Apr 2024 09:14:53 +0000
From: "Tian, Kevin" <kevin.tian@...el.com>
To: Jacob Pan <jacob.jun.pan@...ux.intel.com>, LKML
	<linux-kernel@...r.kernel.org>, X86 Kernel <x86@...nel.org>, Peter Zijlstra
	<peterz@...radead.org>, "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
	Thomas Gleixner <tglx@...utronix.de>, Lu Baolu <baolu.lu@...ux.intel.com>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>, "Hansen, Dave"
	<dave.hansen@...el.com>, Joerg Roedel <joro@...tes.org>, "H. Peter Anvin"
	<hpa@...or.com>, Borislav Petkov <bp@...en8.de>, Ingo Molnar
	<mingo@...hat.com>
CC: "Luse, Paul E" <paul.e.luse@...el.com>, "Williams, Dan J"
	<dan.j.williams@...el.com>, Jens Axboe <axboe@...nel.dk>, "Raj, Ashok"
	<ashok.raj@...el.com>, "maz@...nel.org" <maz@...nel.org>, "seanjc@...gle.com"
	<seanjc@...gle.com>, Robin Murphy <robin.murphy@....com>,
	"jim.harris@...sung.com" <jim.harris@...sung.com>, "a.manzanares@...sung.com"
	<a.manzanares@...sung.com>, Bjorn Helgaas <helgaas@...nel.org>, "Zeng, Guang"
	<guang.zeng@...el.com>, "robert.hoo.linux@...il.com"
	<robert.hoo.linux@...il.com>
Subject: RE: [PATCH v2 05/13] x86/irq: Reserve a per CPU IDT vector for posted
 MSIs

> From: Jacob Pan <jacob.jun.pan@...ux.intel.com>
> 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.

Just call it POSTED_MSI_VECTOR