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Rao" CC: Christophe Leroy , "linux-kernel@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" , "live-patching@vger.kernel.org" Subject: [PATCH v2 00/13] Implement livepatch on PPC32 and more Thread-Topic: [PATCH v2 00/13] Implement livepatch on PPC32 and more Thread-Index: AQHX9b/yHKLwJ2BvN0CibIvpSgqRSg== Date: Mon, 20 Dec 2021 16:37:58 +0000 Message-ID: Accept-Language: fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=csgroup.eu; x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 94f7b629-0f07-44e3-3247-08d9c3d714e6 x-ms-traffictypediagnostic: MR1P264MB1905:EE_ x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:983; x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:MRZP264MB2988.FRAP264.PROD.OUTLOOK.COM;PTR:;CAT:NONE;SFS:(4636009)(366004)(508600001)(86362001)(36756003)(316002)(110136005)(6512007)(54906003)(71200400001)(6506007)(38070700005)(83380400001)(8936002)(2906002)(122000001)(6486002)(38100700002)(8676002)(44832011)(66446008)(5660300002)(66946007)(66556008)(26005)(76116006)(4326008)(91956017)(7416002)(2616005)(64756008)(186003)(66476007);DIR:OUT;SFP:1101; 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charset="iso-8859-1" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 X-OriginatorOrg: csgroup.eu X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MRZP264MB2988.FRAP264.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-Network-Message-Id: 94f7b629-0f07-44e3-3247-08d9c3d714e6 X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Dec 2021 16:37:58.4713 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 9914def7-b676-4fda-8815-5d49fb3b45c8 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: hgYGW/G+CK2d31Ne91VmVm0Akp8RqptnLaoKB2rrVwoySTyQe5NIBnezxefsUdxtDw1QXq0KhLYgBmHo6hD/BamZ0N5JUO6yllYlUqGGI3Y= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MR1P264MB1905 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series implements livepatch on PPC32 and implements CONFIG_DYNAMIC_FTRACE_WITH_ARGS to simplify ftracing. v2: - Fix problem with strict modules RWX - Convert powerpc to CONFIG_DYNAMIC_FTRACE_WITH_ARGS - Convert function graph tracing to C - Refactor PPC32 versus PPC64 Signed-off-by: Christophe Leroy Christophe Leroy (13): livepatch: Fix build failure on 32 bits processors tracing: Fix selftest config check for function graph start up test powerpc/module_32: Fix livepatching for RO modules powerpc/ftrace: Add support for livepatch to PPC32 powerpc/ftrace: Don't save again LR in ftrace_regs_caller() on PPC32 powerpc/ftrace: Simplify PPC32's return_to_handler() powerpc/ftrace: Prepare PPC32's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS powerpc/ftrace: Prepare PPC64's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS powerpc/ftrace: Implement CONFIG_DYNAMIC_FTRACE_WITH_ARGS powerpc/ftrace: Refactor ftrace_{en/dis}able_ftrace_graph_caller powerpc/ftrace: directly call of function graph tracer by ftrace caller powerpc/ftrace: Prepare ftrace_64_mprofile.S for reuse by PPC32 powerpc/ftrace: Remove ftrace_32.S arch/powerpc/Kconfig | 7 +- arch/powerpc/include/asm/ftrace.h | 62 +++--- arch/powerpc/include/asm/livepatch.h | 12 +- arch/powerpc/include/asm/thread_info.h | 2 +- arch/powerpc/kernel/asm-offsets.c | 2 +- arch/powerpc/kernel/module_32.c | 44 +++-- arch/powerpc/kernel/trace/Makefile | 7 +- arch/powerpc/kernel/trace/ftrace.c | 32 +-- arch/powerpc/kernel/trace/ftrace_32.S | 187 ------------------ .../trace/{ftrace_64.S => ftrace_low.S} | 14 ++ ...ftrace_64_mprofile.S => ftrace_mprofile.S} | 158 +++++++-------- kernel/livepatch/core.c | 4 +- kernel/trace/trace_selftest.c | 6 +- 13 files changed, 178 insertions(+), 359 deletions(-) delete mode 100644 arch/powerpc/kernel/trace/ftrace_32.S rename arch/powerpc/kernel/trace/{ftrace_64.S => ftrace_low.S} (85%) rename arch/powerpc/kernel/trace/{ftrace_64_mprofile.S => ftrace_mprofile.S} (75%) -- 2.33.1