From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76486C282C8 for ; Mon, 28 Jan 2019 12:40:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2CE3E20880 for ; Mon, 28 Jan 2019 12:40:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726762AbfA1Mka (ORCPT ); Mon, 28 Jan 2019 07:40:30 -0500 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:44866 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726668AbfA1Mka (ORCPT ); Mon, 28 Jan 2019 07:40:30 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E59B580D; Mon, 28 Jan 2019 04:40:29 -0800 (PST) Received: from big-swifty.misterjones.org (big-swifty.cambridge.arm.com [10.1.39.122]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6A9C53F59C; Mon, 28 Jan 2019 04:40:27 -0800 (PST) Date: Mon, 28 Jan 2019 12:40:30 +0000 Message-ID: <86pnshuf9d.wl-marc.zyngier@arm.com> From: Marc Zyngier To: Julien Thierry Cc: , , , , , , , , Subject: Re: [PATCH v9 25/26] arm64: Skip irqflags tracing for NMI in IRQs disabled context In-Reply-To: <1548084825-8803-26-git-send-email-julien.thierry@arm.com> References: <1548084825-8803-1-git-send-email-julien.thierry@arm.com> <1548084825-8803-26-git-send-email-julien.thierry@arm.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 EasyPG/1.0.0 Emacs/25.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) Organization: ARM Ltd MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 21 Jan 2019 15:33:44 +0000, Julien Thierry wrote: > > When an NMI is raised while interrupts where disabled, the IRQ tracing > already is in the correct state (i.e. hardirqs_off) and should be left > as such when returning to the interrupted context. > > Check whether PMR was masking interrupts when the NMI was raised and > skip IRQ tracing if necessary. > > Signed-off-by: Julien Thierry > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Marc Zyngier Acked-by: Marc Zyngier M. -- Jazz is not dead, it just smell funny. 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 21 Jan 2019 15:33:44 +0000, Julien Thierry wrote: > > When an NMI is raised while interrupts where disabled, the IRQ tracing > already is in the correct state (i.e. hardirqs_off) and should be left > as such when returning to the interrupted context. > > Check whether PMR was masking interrupts when the NMI was raised and > skip IRQ tracing if necessary. > > Signed-off-by: Julien Thierry > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Marc Zyngier Acked-by: Marc Zyngier M. -- Jazz is not dead, it just smell funny. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel