Enable early booting of Armv8-R AArch32 based systems.

Ayan Kumar Halder (3):
  xen/arm: Move some of the functions to common file
  xen/arm32: Create the same boot-time MPU regions as arm64
  xen/arm32: mpu: Stubs to build MPU for arm32

 xen/arch/arm/arm32/Makefile              |   1 +
 xen/arch/arm/arm32/mpu/Makefile          |   3 +
 xen/arch/arm/arm32/mpu/head.S            | 101 +++++++++++++++++++++++
 xen/arch/arm/arm32/mpu/p2m.c             |  18 ++++
 xen/arch/arm/arm32/mpu/smpboot.c         |  23 ++++++
 xen/arch/arm/arm64/mpu/head.S            |  78 +----------------
 xen/arch/arm/include/asm/arm32/sysregs.h |   7 ++
 xen/arch/arm/include/asm/arm64/sysregs.h |  11 +++
 xen/arch/arm/include/asm/cpregs.h        |   4 +
 xen/arch/arm/include/asm/mm.h            |   9 +-
 xen/arch/arm/include/asm/mmu/mm.h        |   9 ++
 xen/arch/arm/include/asm/mpu/common.inc  |  79 ++++++++++++++++++
 xen/arch/arm/include/asm/mpu/cpregs.h    |  24 ++++++
 xen/arch/arm/include/asm/mpu/mm.h        |   5 ++
 xen/arch/arm/mpu/Makefile                |   1 +
 xen/arch/arm/mpu/domain_page.c           |  41 +++++++++
 16 files changed, 329 insertions(+), 85 deletions(-)
 create mode 100644 xen/arch/arm/arm32/mpu/Makefile
 create mode 100644 xen/arch/arm/arm32/mpu/head.S
 create mode 100644 xen/arch/arm/arm32/mpu/p2m.c
 create mode 100644 xen/arch/arm/arm32/mpu/smpboot.c
 create mode 100644 xen/arch/arm/include/asm/mpu/common.inc
 create mode 100644 xen/arch/arm/include/asm/mpu/cpregs.h
 create mode 100644 xen/arch/arm/mpu/domain_page.c

-- 
2.25.1

Hi Ayan,

> On 7 Apr 2025, at 19:44, Ayan Kumar Halder <ayan.kumar.halder@amd.com> wrote:
> 
> Enable early booting of Armv8-R AArch32 based systems.
> 
> Ayan Kumar Halder (3):
>  xen/arm: Move some of the functions to common file
>  xen/arm32: Create the same boot-time MPU regions as arm64
>  xen/arm32: mpu: Stubs to build MPU for arm32
> 

I’ve tested this serie building arm64 & arm32 MPU & MMU architecture:

Tested-by: Luca Fancellu <luca.fancellu@arm.com>

Cheers,
Luca