linux-kernel - Query regarding pseudo nmi support on GIC V3 and request

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Message-ID: <2a0d5719-b2c7-1287-e0b5-2dd8b1072e49@codeaurora.org>
Date:   Thu, 7 May 2020 21:36:19 +0530
From:   Neeraj Upadhyay <neeraju@...eaurora.org>
To:     julien.thierry.kdev@...il.com, maz@...nel.org
Cc:     linux-kernel@...r.kernel.org
Subject: Query regarding pseudo nmi support on GIC V3 and request_nmi()

Hi,

I have one query regarding pseudo NMI support on GIC v3; from what I 
could understand, GIC v3 supports pseudo NMI setup for SPIs and PPIs.
However the request_nmi() in irq framework requires NMI to be per cpu
interrupt source (it checks for IRQF_PERCPU). Can you please help
understand this part, how SPIs can be configured as NMIs, if there is
a per cpu interrupt source restriction?

Thanks
Neeraj

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