mbox series

[v4,0/3] Enable early bootup of Armv8-R AArch32 systems

Message ID 20250403171241.975377-1-ayan.kumar.halder@amd.com (mailing list archive)
Headers show
Series Enable early bootup of Armv8-R AArch32 systems | expand

Message

Ayan Kumar Halder April 3, 2025, 5:12 p.m. UTC 
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                 | 91 +++++++++++++++++++
 xen/arch/arm/arm32/mpu/p2m.c                  | 18 ++++
 xen/arch/arm/arm32/mpu/smpboot.c              | 23 +++++
 xen/arch/arm/arm64/mpu/head.S                 | 88 +-----------------
 xen/arch/arm/include/asm/arm64/sysregs.h      | 11 +++
 xen/arch/arm/include/asm/cpregs.h             |  4 +
 xen/arch/arm/include/asm/mm.h                 |  5 +
 xen/arch/arm/include/asm/mpu/cpregs.h         | 30 ++++++
 .../include/asm/mpu/prepare_xen_region.inc    | 89 ++++++++++++++++++
 xen/arch/arm/mpu/Makefile                     |  1 +
 xen/arch/arm/mpu/domain_page.c                | 40 ++++++++
 13 files changed, 317 insertions(+), 87 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/cpregs.h
 create mode 100644 xen/arch/arm/include/asm/mpu/prepare_xen_region.inc
 create mode 100644 xen/arch/arm/mpu/domain_page.c

Comments

Luca Fancellu April 4, 2025, 8:47 a.m. UTC | #1 
Hi Ayan,

> On 3 Apr 2025, at 18:12, 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

the serie is breaking the compilation of Arm64 MPU:

[…]
xen/arch/arm/include/asm/mpu/cpregs.h:6: error: "REGION_TEXT_PRBAR" redefined [-Werror]
    6 | #define REGION_TEXT_PRBAR       0x18    /* SH=11 AP=10 XN=0 */
      | 
[…]

Cheers,
Luca