Path: csiph.com!news.mixmin.net!eternal-september.org!feeder.eternal-september.org!aioe.org!bofh.it!news.nic.it!robomod From: Torsten Duwe Newsgroups: linux.kernel Subject: [PATCH v4 0/9] ftrace with regs + live patching for ppc64 LE (ABI v2) Date: Wed, 25 Nov 2015 18:30:02 +0100 Message-ID: X-Original-To: Steven Rostedt , Michael Ellerman Sender: robomod@news.nic.it List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Approved: robomod@news.nic.it Lines: 52 Organization: linux.* mail to news gateway X-Original-Cc: Jiri Kosina , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, live-patching@vger.kernel.org X-Original-Date: Wed, 25 Nov 2015 17:53:17 +0100 X-Original-Message-ID: <20151125172608.9588569260@newverein.lst.de> X-Original-Sender: linux-kernel-owner@vger.kernel.org Xref: csiph.com linux.kernel:1277625 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 | 7 ++ 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 | 164 ++++++++++++++++++++++++++++++++++- arch/powerpc/kernel/ftrace.c | 88 ++++++++++++++----- arch/powerpc/kernel/livepatch.c | 38 ++++++++ arch/powerpc/kernel/module_64.c | 38 +++++++- 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, 406 insertions(+), 54 deletions(-) create mode 100644 arch/powerpc/include/asm/livepatch.h create mode 100644 arch/powerpc/kernel/livepatch.c -- 1.8.5.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/