[PATCH V3 0/2] Improve vmcoreinfo and memory layout dump

From: Xianting Tian
Date: Thu Jul 14 2022 - 07:33:15 EST

This patch series are the improvements for vmcoreinfo and memory
layout dump.

The first patch(1/2) is to add VM layout to vmcoreinfo, which can
simlify the development of crash tool as ARM64 already did

The second patch(2/2) is to add MODULES to memory layout dump.

Changes v1 -> v2:
patch 1: add VA_BITS to vmcoreinfo as ARM64 does, not satp_mode.
crash tool can read VA_BITS to determin the pagetable
patch 1,2: As MODULES area is only defined when CONFIG_64BIT=y for
riscv64, so only use MODULES area when CONFIG_64BIT=y.
Changes v2 -> v3:
patch 1,2: use "#ifdef CONFIG_64BIT" instead of "IS_ENABLED(CONFIG_64BIT)"
when check whether MODULES area is available.

Xianting Tian (2):
RISC-V: Add arch_crash_save_vmcoreinfo support
riscv: Add modules to virtual kernel memory layout dump

arch/riscv/kernel/Makefile | 1 +
arch/riscv/kernel/crash_core.c | 29 +++++++++++++++++++++++++++++
arch/riscv/mm/init.c | 4 ++++
3 files changed, 34 insertions(+)
create mode 100644 arch/riscv/kernel/crash_core.c