My kernel patches of kdump support on arm64 were merged in v4.12-rc1.
This patchset is synced with them and provides necessary changes for
kexec-tools. It can be applied on top of kexec-tools master branch.
Patch #1 to #4 are preparatory patches for succeeding patches,
#5 to #9 are main part of kdump implementation for vmlinux support
and #10 is for Image support.
Changes for v7:
- rebased on the latest master
- fix incorrect return values on error (patch #4)
- implement get_crash_kernel_load_range() (patch #5)
- rename some variables/functions for better readability (patch #5/#9)
- add/revise comments
Changes for v6:
- use get_kernel_sym() from x86, not from arm (patch #2)
- always take root node's "#address-cells" and "#size-cells" into account
when adding "linux,usable-memory-range" and "linux,elfcorehdr"
(patch #8)
Changes for v5:
- remove "linux,crashkernel-base/size" handling aligned with a change
on the kernel side
Changes for v4:
- rebased on the master branch (including Geoff's v6)
- revive "linux,usable-memory-range" DT property (from v2), dropping
use of "reserved-memory" nodes introduced in v3 (patch #8)
- extend the semantics of kexec_iomem_for_each_line() per Pratyush
(patch #1)
Changes for v3:
- rebased on Geoff's v5
- fix a value of estimated PHYS_OFFSET
- add a kernel code/data segment because they now reside out of linear
mapping due to KASLR introduction
- remove "linux,usable-memory-range" dependency, instead using
"reserved-memory" node
- add -mem-min/-mem-max support
Changes for v2:
- trim a temoprary buffer in setup_2nd_dtb()
- add patch#6("kexec: generalize and rename get_kernel_stext_sym()")
- update patch#7 from Pratyush
(re-worked by akashi)
AKASHI Takahiro (8):
kexec: exntend the semantics of kexec_iomem_for_each_line
arm64: identify PHYS_OFFSET correctly
arm64: change return values on error to negative
arm64: kdump: identify memory regions
arm64: kdump: add elf core header segment
arm64: kdump: set up kernel image segment
arm64: kdump: set up other segments
arm64: kdump: add DT properties to crash dump kernel's dtb
Pratyush Anand (2):
kexec: generalize and rename get_kernel_stext_sym()
arm64: kdump: Add support for binary image files
kexec/Makefile | 1 +
kexec/arch/arm/crashdump-arm.c | 40 +-----
kexec/arch/arm64/Makefile | 3 +
kexec/arch/arm64/crashdump-arm64.c | 229 +++++++++++++++++++++++++++++-
kexec/arch/arm64/crashdump-arm64.h | 18 ++-
kexec/arch/arm64/iomem.h | 10 ++
kexec/arch/arm64/kexec-arm64.c | 263 +++++++++++++++++++++++++++++++----
kexec/arch/arm64/kexec-elf-arm64.c | 31 +++--
kexec/arch/arm64/kexec-image-arm64.c | 17 ++-
kexec/arch/i386/crashdump-x86.c | 29 ----
kexec/kexec-iomem.c | 15 +-
kexec/kexec.h | 2 +
kexec/symbols.c | 34 +++++
13 files changed, 579 insertions(+), 113 deletions(-)
create mode 100644 kexec/arch/arm64/iomem.h
create mode 100644 kexec/symbols.c
--
2.11.1
