[PATCH V5 0/2] Support VMCOREINFO export for RISCV64

[Xianting Tian]

As disscussed in below patch set, the patch of 'describe VMCOREINFO export in Documentation'
need to update according to Bagas's comments. 
https://lore.kernel.org/linux-riscv/22AAF52E-8CC8-4D11-99CB-88DE4D113444@kernel.org/

As others patches in above patch set already applied, so this patch set only contains below two
patches.

------
Changes:
   Fix commit message in patch 2: use "Document these RISCV64 exports above" instead of
   "This patch just add the description of VMCOREINFO export for RISCV64."
V1 -> V2:
   Remove unnecessary overline above header text in patch 2.
V2 -> V3:
   Fix commit message in patch 1,2; 
   Use 'space' instead of 'region' for vmemmap description in patch 2.
V3 -> V4:
   Remove unnecessary kernel space export:
   KASAN_SHADOW_START ~ KASAN_SHADOW_END,
   ADDRESS_SPACE_END
V4 -> V5:
   Remove IS_ENABLED() judgement for KERNEL_LINK_ADDR in patch 1.

Xianting Tian (2):
  RISC-V: Add arch_crash_save_vmcoreinfo support
  Documentation: kdump: describe VMCOREINFO export for RISCV64

 .../admin-guide/kdump/vmcoreinfo.rst          | 29 +++++++++++++++++++
 arch/riscv/kernel/Makefile                    |  1 +
 arch/riscv/kernel/crash_core.c                | 21 ++++++++++++++
 3 files changed, 51 insertions(+)
 create mode 100644 arch/riscv/kernel/crash_core.c

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2.17.1