From: Torsten Duwe <duwe@lst.de>
To: Steven Rostedt <rostedt@goodmis.org>,
Michael Ellerman <mpe@ellerman.id.au>
Cc: Jiri Kosina <jkosina@suse.cz>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
live-patching@vger.kernel.org
Subject: [PATCH v6 0/9] ftrace with regs + live patching for ppc64 LE (ABI v2)
Date: Mon, 25 Jan 2016 16:38:48 +0100 [thread overview]
Message-ID: <20160125170459.14DB7692CE@newverein.lst.de> (raw)
Changes since v5:
* extra "std r0,LRSAVE(r1)" for gcc-6
This makes the code compiler-agnostic.
* Follow Petr Mladek's suggestion to avoid
redefinition of HAVE_LIVEPATCH
Changes since v4:
* change comment style in entry_64.S to C89
(nobody is using assembler syntax comments there).
* the bool function restore_r2 shouldn't return 2,
that's a little confusing.
* Test whether the compiler supports -mprofile-kernel
and only then define CC_USING_MPROFILE_KERNEL
* also make the return value of klp_check_compiler_support
depend on that.
Major changes since v3:
* the graph tracer works now.
It turned out the stack frame it tried to manipulate does not
exist at that point.
* changes only needed in order to support -mprofile-kernel are now
in a separate patch, prepended.
* Kconfig cleanup so this is only selectable on ppc64le.
Torsten Duwe (9):
ppc64 (le): prepare for -mprofile-kernel
ppc64le FTRACE_WITH_REGS implementation
ppc use ftrace_modify_all_code default
ppc64 ftrace_with_regs configuration variables
ppc64 ftrace_with_regs: spare early boot and low level
ppc64 ftrace: disable profiling for some functions
ppc64 ftrace: disable profiling for some files
Implement kernel live patching for ppc64le (ABIv2)
Enable LIVEPATCH to be configured on ppc64le and add livepatch.o if it
is selected.
arch/powerpc/Kconfig | 7 ++
arch/powerpc/Makefile | 10 +++
arch/powerpc/include/asm/ftrace.h | 5 ++
arch/powerpc/include/asm/livepatch.h | 45 ++++++++++
arch/powerpc/kernel/Makefile | 13 +--
arch/powerpc/kernel/entry_64.S | 166 ++++++++++++++++++++++++++++++++++-
arch/powerpc/kernel/ftrace.c | 88 ++++++++++++++-----
arch/powerpc/kernel/livepatch.c | 38 ++++++++
arch/powerpc/kernel/module_64.c | 39 +++++++-
arch/powerpc/kernel/process.c | 2 +-
arch/powerpc/lib/Makefile | 4 +-
arch/powerpc/mm/fault.c | 2 +-
arch/powerpc/mm/hash_utils_64.c | 18 ++--
arch/powerpc/mm/hugetlbpage-hash64.c | 2 +-
arch/powerpc/mm/hugetlbpage.c | 4 +-
arch/powerpc/mm/mem.c | 2 +-
arch/powerpc/mm/pgtable_64.c | 2 +-
arch/powerpc/mm/slb.c | 6 +-
arch/powerpc/mm/slice.c | 8 +-
kernel/trace/Kconfig | 5 ++
20 files changed, 412 insertions(+), 54 deletions(-)
create mode 100644 arch/powerpc/include/asm/livepatch.h
create mode 100644 arch/powerpc/kernel/livepatch.c
--
1.8.5.6
next reply other threads:[~2016-01-25 17:05 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-25 15:38 Torsten Duwe [this message]
2016-01-25 15:26 ` [PATCH v6 1/9] ppc64 (le): prepare for -mprofile-kernel Torsten Duwe
2016-01-27 10:19 ` Michael Ellerman
2016-01-27 10:44 ` Torsten Duwe
2016-01-28 4:26 ` Michael Ellerman
2016-01-28 11:50 ` Torsten Duwe
2016-01-27 12:58 ` Alan Modra
2016-01-27 13:45 ` Torsten Duwe
2016-01-28 3:39 ` Michael Ellerman
2016-02-03 7:23 ` AKASHI Takahiro
2016-02-03 8:55 ` Jiri Kosina
2016-02-03 11:24 ` Torsten Duwe
2016-02-04 9:31 ` AKASHI Takahiro
2016-02-04 11:02 ` Petr Mladek
2016-02-05 4:40 ` Balbir Singh
2016-02-05 10:22 ` Petr Mladek
2016-02-04 21:47 ` Jiri Kosina
2016-01-25 15:27 ` [PATCH v6 2/9] ppc64le FTRACE_WITH_REGS implementation Torsten Duwe
2016-01-25 15:29 ` [PATCH v6 3/9] ppc use ftrace_modify_all_code default Torsten Duwe
2016-01-25 15:29 ` [PATCH v6 4/9] ppc64 ftrace_with_regs configuration variables Torsten Duwe
2016-01-25 15:30 ` [PATCH v6 5/9] ppc64 ftrace_with_regs: spare early boot and low level Torsten Duwe
2016-01-25 15:31 ` [PATCH v6 6/9] ppc64 ftrace: disable profiling for some functions Torsten Duwe
2016-01-25 15:31 ` [PATCH v6 7/9] ppc64 ftrace: disable profiling for some files Torsten Duwe
2016-01-25 15:33 ` [PATCH v6 8/9] Implement kernel live patching for ppc64le (ABIv2) Torsten Duwe
2016-01-26 10:50 ` Miroslav Benes
2016-01-26 12:48 ` Petr Mladek
2016-01-26 13:56 ` Torsten Duwe
2016-02-02 12:12 ` Petr Mladek
2016-02-02 15:45 ` Torsten Duwe
2016-02-02 16:47 ` Petr Mladek
2016-02-02 20:39 ` Jiri Kosina
2016-01-26 14:00 ` Torsten Duwe
2016-01-26 14:14 ` Miroslav Benes
2016-01-27 1:53 ` Jessica Yu
2016-02-02 13:46 ` [PATCH v6 8/9] " Denis Kirjanov
2016-02-10 18:03 ` Torsten Duwe
2016-01-25 15:33 ` [PATCH v6 9/9] Enable LIVEPATCH to be configured on ppc64le and add livepatch.o if it is selected Torsten Duwe
2016-01-27 10:51 ` [PATCH v6 0/9] ftrace with regs + live patching for ppc64 LE (ABI v2) Balbir Singh
2016-01-27 12:19 ` Torsten Duwe
2016-01-28 2:41 ` Balbir Singh
2016-01-28 3:31 ` Michael Ellerman
2016-01-28 11:19 ` Torsten Duwe
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