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=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT 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 5133AC43219 for ; Mon, 29 Apr 2019 16:00:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1F3292064A for ; Mon, 29 Apr 2019 16:00:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728759AbfD2QAR (ORCPT ); Mon, 29 Apr 2019 12:00:17 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:32926 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728468AbfD2QAP (ORCPT ); Mon, 29 Apr 2019 12:00:15 -0400 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 CDC2380D; Mon, 29 Apr 2019 09:00:14 -0700 (PDT) Received: from e112298-lin.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id C8B283F5C1; Mon, 29 Apr 2019 09:00:12 -0700 (PDT) From: Julien Thierry To: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, rostedt@goodmis.org, marc.zyngier@arm.com, yuzenghui@huawei.com, wanghaibin.wang@huawei.com, james.morse@arm.com, will.deacon@arm.com, catalin.marinas@arm.com, mark.rutland@arm.com, liwei391@huawei.com, Julien Thierry Subject: [PATCH v2 0/5] arm64: IRQ priority masking and Pseudo-NMI fixes Date: Mon, 29 Apr 2019 17:00:02 +0100 Message-Id: <1556553607-46531-1-git-send-email-julien.thierry@arm.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, [Changing the title to make it reflex more the status of the series.] Version one[1] of this series attempted to fix the issue reported by Zenghui[2] when using the function_graph tracer with IRQ priority masking. Since then, I realized that priority masking and the use of Pseudo-NMIs was more broken than I thought. * Patch 1 is just some rework * Patch 2 replaces the previous irqflags tracing "simplification" with a proper fix when tracing Pseudo-NMI * Patch 3 fixes the function_graph issue when using priority masking * Patch 4 introduces some debug to hopefully avoid breaking things in the future * Patch 5 is a rebased version of the patch sent by Wei Li[3] fixing an error that can happen during on some platform using the priority masking feature Changes since V1 [1]: - Fix possible race condition between NMI and trace irqflags - Simplify the representation of PSR.I in the PMR value - Include Wei Li's fix - Rebase on v5.1-rc7 [1] https://marc.info/?l=linux-arm-kernel&m=155542458004480&w=2 [2] https://www.spinics.net/lists/arm-kernel/msg716956.html [3] https://www.spinics.net/lists/arm-kernel/msg722171.html Cheers, Julien --> Julien Thierry (4): arm64: Do not enable IRQs for ct_user_exit arm64: Fix interrupt tracing in the presence of NMIs arm64: Fix incorrect irqflag restore for priority masking arm64: irqflags: Introduce explicit debugging for IRQ priorities Wei Li (1): arm64: fix kernel stack overflow in kdump capture kernel arch/arm64/Kconfig | 11 +++++ arch/arm64/include/asm/arch_gicv3.h | 4 +- arch/arm64/include/asm/assembler.h | 9 ++++ arch/arm64/include/asm/daifflags.h | 31 +++++++++++--- arch/arm64/include/asm/irqflags.h | 83 +++++++++++++++++++------------------ arch/arm64/include/asm/kvm_host.h | 4 +- arch/arm64/include/asm/ptrace.h | 10 ++++- arch/arm64/kernel/entry.S | 76 +++++++++++++++++++++++++-------- arch/arm64/kernel/irq.c | 26 ++++++++++++ arch/arm64/kernel/process.c | 2 +- arch/arm64/kernel/smp.c | 6 +-- arch/arm64/kvm/hyp/switch.c | 2 +- drivers/irqchip/irq-gic-v3.c | 6 +++ kernel/irq/irqdesc.c | 8 +++- 14 files changed, 202 insertions(+), 76 deletions(-) -- 1.9.1