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=-3.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,T_DKIMWL_WL_HIGH,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 846A8C43142 for ; Tue, 26 Jun 2018 02:59:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 261B02646D for ; Tue, 26 Jun 2018 02:59:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="scO5jOmF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 261B02646D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965275AbeFZC7T (ORCPT ); Mon, 25 Jun 2018 22:59:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:60588 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965232AbeFZC7S (ORCPT ); Mon, 25 Jun 2018 22:59:18 -0400 Received: from localhost.localdomain (h2133.porttelecom.ru [193.189.69.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D11BF257C6; Tue, 26 Jun 2018 02:59:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1529981958; bh=gFrEUNKK5Jvn4ekydSEjv5zlBq+1Gix6/pSB6hRuoXY=; h=From:To:Cc:Subject:Date:From; b=scO5jOmFoZDfvrN21SljU6rSm/Hyy7a6e+uMOcfrJE8uAxP/AiioMv+nFBNBm/4Dg qLaGbEL9Fr53lOQH2FBeBrbKXAP9V2aAnI8zTc7aEUAIS3ua2lqX6m9U1nxjsHykHP 7pnTcRxoxB5n+Mv+Ajbheb7bZSvur9KmCSMuRMg0= From: Frederic Weisbecker To: Ingo Molnar Cc: LKML , Frederic Weisbecker , Jiri Olsa , Namhyung Kim , Joel Fernandes , Peter Zijlstra , Linus Torvalds , Yoshinori Sato , Benjamin Herrenschmidt , Catalin Marinas , Chris Zankel , Paul Mackerras , Thomas Gleixner , Will Deacon , Michael Ellerman , Rich Felker , Mark Rutland , Alexander Shishkin , Andy Lutomirski , Arnaldo Carvalho de Melo , Max Filippov Subject: [GIT PULL] breakpoint: Rework arch validation v4 Date: Tue, 26 Jun 2018 04:58:47 +0200 Message-Id: <1529981939-8231-1-git-send-email-frederic@kernel.org> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ingo, Please pull the perf/breakpoint-v4 branch that can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git perf/breakpoint-v4 HEAD: ba25ee9c7b3ef1543c2a24a7ca6a621433803ee4 Only change since v3 is a rebase against latest tip:perf/core --- When we modify a hardware breakpoint, the architecture code fills up the architecture data as the validation of generic attributes progresses. If something goes wrong in the middle, the architecture data changes aren't rolled back and we are left with a halfway fiddled breakpoint. This set fixes the various misdesigns that back this bad behaviour. Thanks, Frederic --- Frederic Weisbecker (12): perf/breakpoint: Split attribute parse and commit perf/breakpoint: Pass arch breakpoint struct to arch_check_bp_in_kernelspace() x86: Implement hw_breakpoint_arch_parse() powerpc: Implement hw_breakpoint_arch_parse() arm: Implement hw_breakpoint_arch_parse() arm64: Implement hw_breakpoint_arch_parse() sh: Remove "struct arch_hw_breakpoint::name" unused field sh: Implement hw_breakpoint_arch_parse() xtensa: Implement hw_breakpoint_arch_parse() perf/breakpoint: Remove default hw_breakpoint_arch_parse() perf/breakpoint: Pass new breakpoint type to modify_breakpoint_slot() perf/breakpoint: Clean up and consolidate modify_user_hw_breakpoint_check() arch/arm/include/asm/hw_breakpoint.h | 7 +- arch/arm/kernel/hw_breakpoint.c | 78 +++++++++--------- arch/arm64/include/asm/hw_breakpoint.h | 7 +- arch/arm64/kernel/hw_breakpoint.c | 86 ++++++++++---------- arch/powerpc/include/asm/hw_breakpoint.h | 7 +- arch/powerpc/kernel/hw_breakpoint.c | 47 ++++++----- arch/sh/include/asm/hw_breakpoint.h | 8 +- arch/sh/kernel/hw_breakpoint.c | 53 ++++++------- arch/x86/include/asm/hw_breakpoint.h | 7 +- arch/x86/kernel/hw_breakpoint.c | 131 ++++++++++++++++--------------- arch/xtensa/include/asm/hw_breakpoint.h | 7 +- arch/xtensa/kernel/hw_breakpoint.c | 40 ++++------ kernel/events/hw_breakpoint.c | 92 +++++++++++++--------- 13 files changed, 294 insertions(+), 276 deletions(-)