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

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

I committed patches 1-5

On Mon, 28 Aug 2023, Henry Wang wrote:
> 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
>