linux-kernel - Re: [RFC KERNEL PATCH v6 3/3] xen/privcmd: Add new syscall to get gsi from irq

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Message-ID: <c30ebad2-1ad3-4b58-afaf-e6dc32c091fc@suse.com>
Date: Fri, 10 May 2024 11:53:45 +0200
From: Jürgen Groß <jgross@...e.com>
To: "Chen, Jiqian" <Jiqian.Chen@....com>
Cc: Stefano Stabellini <sstabellini@...nel.org>,
 Bjorn Helgaas <bhelgaas@...gle.com>, "Rafael J . Wysocki"
 <rafael@...nel.org>, Roger Pau Monné
 <roger.pau@...rix.com>,
 "xen-devel@...ts.xenproject.org" <xen-devel@...ts.xenproject.org>,
 "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
 "Huang, Ray" <Ray.Huang@....com>
Subject: Re: [RFC KERNEL PATCH v6 3/3] xen/privcmd: Add new syscall to get gsi
 from irq

On 10.05.24 11:06, Chen, Jiqian wrote:
> Hi,
> 
> On 2024/5/10 14:46, Jürgen Groß wrote:
>> On 19.04.24 05:36, Jiqian Chen wrote:
>>> +
>>> +    info->type = IRQT_PIRQ;
> I am considering whether I need to use a new type(like IRQT_GSI) here to distinguish with IRQT_PIRQ, because function restore_pirqs will process all IRQT_PIRQ.

restore_pirqs() already considers gsi == 0 to be not GSI related. Isn't this
enough?

Juergen