From mboxrd@z Thu Jan 1 00:00:00 1970 From: takahiro.akashi@linaro.org (AKASHI Takahiro) Date: Tue, 12 Jul 2016 14:05:06 +0900 Subject: [PATCH v22 0/8] arm64: add kdump support Message-ID: <20160712050514.22307-1-takahiro.akashi@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This patch series adds kdump support on arm64. To load a crash-dump kernel to the systems, a series of patches to kexec-tools [1], which have not yet been merged upstream, are needed. Please update to the latest if you have been using an older version. To examine vmcore (/proc/vmcore) on a crash-dump kernel, you can use - crash utility (coming v7.1.6 or later) [2] (Necessary patches have already been queued in the master.) [1] https://git.kernel.org/cgit/linux/kernel/git/geoff/kexec-tools.git (Please rename "linux,usable-memory" to "linux,usable-memory-range" in kexec/arch/arm64/kexec-arm64.c) [2] https://github.com/crash-utility/crash.git Changes for v22 (July 12, 2016): o Export "crashkernel-base" and "crashkernel-size" via device-tree, and add some descriptions about them in chosen.txt o Rename "usable-memory" to "usable-memory-range" to avoid inconsistency with powerpc's "usable-memory" o Make cosmetic changes regarding "ifdef" usage o Correct some wordings in kdump.txt Changes for v21 (July 6, 2016): o Remove kexec patches. o Rebase to arm64's for-next/core (Linux-4.7-rc4 based). o Clarify the description about kvm in kdump.txt. See the following link [3] for older changes: [3] http://lists.infradead.org/pipermail/linux-arm-kernel/2016-June/438780.html AKASHI Takahiro (7): arm64: kdump: reserve memory for crash dump kernel arm64: limit memory regions based on DT property, usable-memory-range arm64: kdump: implement machine_crash_shutdown() arm64: kdump: add kdump support arm64: kdump: add VMCOREINFO's for user-space coredump tools arm64: kdump: enable kdump in the arm64 defconfig arm64: kdump: update a kernel doc James Morse (1): Documentation: dt: chosen properties for arm64 kdump Documentation/devicetree/bindings/chosen.txt | 45 ++++++ Documentation/kdump/kdump.txt | 16 ++- arch/arm64/Kconfig | 11 ++ arch/arm64/configs/defconfig | 1 + arch/arm64/include/asm/hardirq.h | 2 +- arch/arm64/include/asm/kexec.h | 41 +++++- arch/arm64/include/asm/smp.h | 2 + arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/crash_dump.c | 71 +++++++++ arch/arm64/kernel/machine_kexec.c | 67 ++++++++- arch/arm64/kernel/setup.c | 7 +- arch/arm64/kernel/smp.c | 64 +++++++++ arch/arm64/mm/init.c | 207 +++++++++++++++++++++++++++ 13 files changed, 528 insertions(+), 7 deletions(-) create mode 100644 arch/arm64/kernel/crash_dump.c -- 2.9.0