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[v8,0/8] xen/arm: Split MMU code as the prepration of MPU work

Message ID 20231023021345.1731436-1-Henry.Wang@arm.com (mailing list archive)
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Series xen/arm: Split MMU code as the prepration of MPU work | expand

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Henry Wang Oct. 23, 2023, 2:13 a.m. UTC 
Based on the discussion in the Xen Summit [1], sending this series out after
addressing the comments in v7 [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:
bad1ac345b x86: support data operand independent timing mode

[1] https://lore.kernel.org/xen-devel/AS8PR08MB799122F8B0CB841DED64F4819226A@AS8PR08MB7991.eurprd08.prod.outlook.com/
[2] https://lore.kernel.org/xen-devel/20231009010313.3668423-1-Henry.Wang@arm.com/
[3] https://gitlab.com/xen-project/people/henryw/xen/-/pipelines/1045604579

Henry Wang (6):
  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}

 xen/arch/arm/Kconfig               |    2 +-
 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        |    1 -
 xen/arch/arm/arm64/mmu/Makefile    |    1 +
 xen/arch/arm/arm64/mmu/head.S      |   18 +-
 xen/arch/arm/arm64/{ => mmu}/mm.c  |   84 ++
 xen/arch/arm/domain.c              |   11 +-
 xen/arch/arm/include/asm/mm.h      |   32 +-
 xen/arch/arm/include/asm/mmu/mm.h  |   44 +
 xen/arch/arm/include/asm/mmu/p2m.h |   26 +
 xen/arch/arm/include/asm/p2m.h     |   32 +-
 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             | 1834 ++++++++++++++++++++++++++
 xen/arch/arm/mmu/pt.c              |  736 +++++++++++
 xen/arch/arm/mmu/setup.c           |  376 ++++++
 xen/arch/arm/mmu/smpboot.c         |  124 ++
 xen/arch/arm/p2m.c                 | 1909 +---------------------------
 xen/arch/arm/setup.c               |  324 +----
 xen/arch/arm/smpboot.c             |    4 +-
 27 files changed, 3655 insertions(+), 3493 deletions(-)
 create mode 100644 xen/arch/arm/arm32/mmu/Makefile
 create mode 100644 xen/arch/arm/arm32/mmu/mm.c
 rename xen/arch/arm/arm64/{ => mmu}/mm.c (60%)
 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