[0/4] Extract DEBUG_WX to shared use.

Message

Zong Li April 21, 2020, 8:17 a.m. UTC

Some architectures support DEBUG_WX function, it's verbatim from each
others, so extract to mm/Kconfig.debug for shared use.

PPC and ARM ports don't support generic page dumper yet, so we only
refine x86 and arm64 port in this patch series.

For RISC-V port, the DEBUG_WX support depends on other patches which
be merged already:
  - RISC-V page table dumper
  - Support strict kernel memory permissions for security

Zong Li (4):
  mm: add DEBUG_WX support
  riscv: support DEBUG_WX
  x86: mm: use ARCH_HAS_DEBUG_WX instead of arch defined
  arm64: mm: use ARCH_HAS_DEBUG_WX instead of arch defined

 arch/arm64/Kconfig              |  1 +
 arch/arm64/Kconfig.debug        | 29 -----------------------------
 arch/riscv/Kconfig              |  1 +
 arch/riscv/include/asm/ptdump.h |  6 ++++++
 arch/riscv/mm/init.c            |  3 +++
 arch/x86/Kconfig                |  1 +
 arch/x86/Kconfig.debug          | 27 ---------------------------
 mm/Kconfig.debug                | 33 +++++++++++++++++++++++++++++++++
 8 files changed, 45 insertions(+), 56 deletions(-)