[PATCH v3 0/3] OpenSBI domain initialization order

[Anup Patel]

On Sat, Sep 5, 2026 at 6:47 PM Anup Patel <anup.patel at oss.qualcomm.com> wrote:
>
> Currently, we rely on the "opensbi-domain" DT property of CPU DT nodes
> to select the domain assigned to each HART at boot-time but unfortunately
> this is only suitable if we have two non-ROOT domains (aka trused and
> non-trusted. For more than two non-ROOT domains, the domain initialization
> order should be much more predictable where users should define the exact
> order via some DT property under domain DT nodes.
>
> These patches can also be found in sbi_domain_init_order_v3 branch
> at: https://github.com/avpatel/opensbi.git
>
> Changes since v2:
> - Drop unused cpus_offset variable in PATCH2
> - Update documentation of next-arg1, next-addr, and next-mode DT
>   properties in PATCH2
> - Added documentation of init-order DT property in PATCH3
>
> Changes since v1:
> - Removed unwanted "break" from the loop in sbi_domain_context_exit()
> - Use root values when "next-arg1", "next-addr" and "next-mode" DT
>   properties are absent in the domain DT node.
>
> Anup Patel (3):
>   lib: sbi_domain: Check possible harts in
>     sbi_domain_context_enter/exit()
>   lib: sbi_domain: Re-work boot-time assignment of HARTs to non-ROOT
>     domains
>   lib: sbi_domain: Introduce domain intialization order
>
>  docs/domain_support.md             |  49 ++++++-------
>  include/sbi/sbi_domain.h           |   6 +-
>  include/sbi_utils/fdt/fdt_domain.h |   3 +-
>  lib/sbi/sbi_domain.c               |  45 +++++++-----
>  lib/sbi/sbi_domain_context.c       |  31 +++++---
>  lib/utils/fdt/fdt_domain.c         | 110 ++++-------------------------
>  6 files changed, 89 insertions(+), 155 deletions(-)
>
> --
> 2.43.0
>

Applied this series to the riscv/opensbi repo.

Regards,
Anup