[PATCH v6 00/13] xen/arm: Split MMU code as the prepration of MPU work

[Henry Wang <Henry.Wang@xxxxxxx>]

Based on the discussion in the Xen Summit [1], sending this series out after
addressing the comments in v5 [2] as the preparation work to add MPU support.
The series passed the GitLab CI check in [3].

Mostly code movement and function folding, with some of Kconfig and build
system (mainly Makefiles) adjustment.

This series is based on:
ec272d8d4c CI: Always move the bisect build log back

[1] 
https://lore.kernel.org/xen-devel/AS8PR08MB799122F8B0CB841DED64F4819226A@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
[2] 
https://lore.kernel.org/xen-devel/20230814042536.878720-1-Henry.Wang@xxxxxxx/
[3] https://gitlab.com/xen-project/people/henryw/xen/-/pipelines/982592897

Henry Wang (9):
  xen/arm: Introduce CONFIG_MMU Kconfig option
  xen/arm64: Split and move MMU-specific head.S to mmu/head.S
  xen/arm64: Fold setup_fixmap() to create_page_tables()
  xen/arm: Split page table related code to mmu/pt.c
  xen/arm: Split MMU system SMP MM bringup code to mmu/smpboot.c
  xen/arm: Fold mmu_init_secondary_cpu() to head.S
  xen/arm: Extract MMU-specific MM code
  xen/arm: Split MMU-specific setup_mm() and related code out
  xen/arm: Fold pmap and fixmap into MMU system

Penny Zheng (2):
  xen/arm: Rename init_secondary_pagetables() to prepare_secondary_mm()
  xen/arm: mmu: move MMU specific P2M code to mmu/p2m.{c,h}

Wei Chen (2):
  xen/arm64: head.S: Introduce enable_{boot,secondary}_cpu_mm()
  xen/arm: Move MMU related definitions from config.h to mmu/layout.h

 xen/arch/arm/Kconfig                    |    5 +-
 xen/arch/arm/Makefile                   |    1 +
 xen/arch/arm/arm32/Makefile             |    1 +
 xen/arch/arm/arm32/head.S               |   22 +-
 xen/arch/arm/arm32/mmu/Makefile         |    1 +
 xen/arch/arm/arm32/mmu/mm.c             |  301 ++++
 xen/arch/arm/arm64/Makefile             |    2 +-
 xen/arch/arm/arm64/head.S               |  460 +-----
 xen/arch/arm/arm64/mmu/Makefile         |    2 +
 xen/arch/arm/arm64/mmu/head.S           |  481 ++++++
 xen/arch/arm/arm64/{ => mmu}/mm.c       |   84 ++
 xen/arch/arm/include/asm/arm32/mm.h     |    1 +
 xen/arch/arm/include/asm/arm64/macros.h |   36 +
 xen/arch/arm/include/asm/config.h       |  132 +-
 xen/arch/arm/include/asm/mm.h           |   28 +-
 xen/arch/arm/include/asm/mmu/layout.h   |  146 ++
 xen/arch/arm/include/asm/mmu/mm.h       |   41 +
 xen/arch/arm/include/asm/mmu/p2m.h      |   18 +
 xen/arch/arm/include/asm/p2m.h          |   26 +-
 xen/arch/arm/include/asm/page.h         |   15 -
 xen/arch/arm/include/asm/setup.h        |    5 +
 xen/arch/arm/kernel.c                   |   28 -
 xen/arch/arm/mm.c                       | 1212 ---------------
 xen/arch/arm/mmu/Makefile               |    4 +
 xen/arch/arm/mmu/p2m.c                  | 1736 +++++++++++++++++++++
 xen/arch/arm/mmu/pt.c                   |  743 +++++++++
 xen/arch/arm/mmu/setup.c                |  372 +++++
 xen/arch/arm/mmu/smpboot.c              |  121 ++
 xen/arch/arm/p2m.c                      | 1837 +----------------------
 xen/arch/arm/setup.c                    |  324 +---
 xen/arch/arm/smpboot.c                  |    4 +-
 xen/arch/arm/xen.lds.S                  |    1 +
 32 files changed, 4222 insertions(+), 3968 deletions(-)
 create mode 100644 xen/arch/arm/arm32/mmu/Makefile
 create mode 100644 xen/arch/arm/arm32/mmu/mm.c
 create mode 100644 xen/arch/arm/arm64/mmu/Makefile
 create mode 100644 xen/arch/arm/arm64/mmu/head.S
 rename xen/arch/arm/arm64/{ => mmu}/mm.c (60%)
 create mode 100644 xen/arch/arm/include/asm/mmu/layout.h
 create mode 100644 xen/arch/arm/include/asm/mmu/mm.h
 create mode 100644 xen/arch/arm/include/asm/mmu/p2m.h
 create mode 100644 xen/arch/arm/mmu/Makefile
 create mode 100644 xen/arch/arm/mmu/p2m.c
 create mode 100644 xen/arch/arm/mmu/pt.c
 create mode 100644 xen/arch/arm/mmu/setup.c
 create mode 100644 xen/arch/arm/mmu/smpboot.c

-- 
2.25.1