[PATCH v2 0/3] OpenSBI domain initialization order

From: Anup Patel <anup.patel@oss.qualcomm.com>
To: Atish Patra <atish.patra@linux.dev>
Cc: Andrew Jones <andrew.jones@oss.qualcomm.com>,
	Samuel Holland <samuel.holland@sifive.com>,
	Anup Patel <anup@brainfault.org>,
	opensbi@lists.infradead.org,
	Anup Patel <anup.patel@oss.qualcomm.com>
Subject: [PATCH v2 0/3] OpenSBI domain initialization order
Date: Mon, 17 Aug 2026 20:00:22 +0530	[thread overview]
Message-ID: <20260817143025.3068512-1-anup.patel@oss.qualcomm.com> (raw)

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_v2 branch
at: https://github.com/avpatel/opensbi.git

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             |  25 ++++---
 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         | 103 +++++------------------------
 6 files changed, 79 insertions(+), 134 deletions(-)

-- 
2.43.0

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