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From: Wojciech Kudla <wk.kernel@gmail.com>
To: Thomas Gleixner <tglx@linutronix.de>, linux-kernel@vger.kernel.org
Cc: mingo@redhat.com, hpa@zytor.com, x86@kernel.org
Subject: Re: x86/smp: adding new trace points
Date: Wed, 13 May 2020 15:42:07 +0100	[thread overview]
Message-ID: <b3e3c317-17e4-081f-0bb6-3e6f291f8b86@gmail.com> (raw)
In-Reply-To: <87y2pw2fav.fsf@nanos.tec.linutronix.de>

On 13/05/2020 13:24, Thomas Gleixner wrote:

> Why would the SMP call function single interrupt go through the
> PLATFORM_IPI_VECTOR? It goes as the name says through the
> CALL_FUNCTION_SINGLE_VECTOR.
> 

Wrong vector, my bad.

However 2) still stands in my opinion. We don't have "ipi raise" trace point for x86.
RESCHEDULE_VECTOR, CALL_FUNCTION_SINGLE_VECTOR, as well as TLB invalidation vectors are essentially inter-processor-interrupts if I'm not mistaken.
Would a patch adding such trace point be considered here?

Thanks,
Wojtek

  reply	other threads:[~2020-05-13 15:01 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <4d54953b-f968-63f5-569f-9e09bc0f361c@gmail.com>
2020-05-12 11:39 ` Wojciech Kudla
2020-05-13 12:24   ` Thomas Gleixner
2020-05-13 14:42     ` Wojciech Kudla [this message]
2020-05-13 16:43       ` Thomas Gleixner
2020-05-13 18:42         ` Wojciech Kudla

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