[RFC PATCH 05/12] include: sbi_domain: add Worlds WID fields - Yu-Chien Peter Lin

From: Yu-Chien Peter Lin <peter.lin@sifive.com>
To: opensbi@lists.infradead.org
Cc: zong.li@sifive.com, greentime.hu@sifive.com, anup@brainfault.org,
	scott@riscstar.com, conor@kernel.org, dave.patel@riscstar.com,
	raymond.mao@riscstar.com, robin.randhawa@sifive.com,
	samuel.holland@sifive.com,
	Yu-Chien Peter Lin <peter.lin@sifive.com>
Subject: [RFC PATCH 05/12] include: sbi_domain: add Worlds WID fields
Date: Fri, 26 Jun 2026 18:14:26 +0800	[thread overview]
Message-ID: <20260626101433.3133466-6-peter.lin@sifive.com> (raw)
In-Reply-To: <20260626101433.3133466-1-peter.lin@sifive.com>

Adds next_wid (u32 WID for next boot stage), has_next_wid (distinguishes
explicit zero from unset for pmwid fallback), and next_widlist (u64 bitmask
specifying which WIDs can be delegated to this domain) to sbi_domain
structure. Enables per-domain World ID configuration.

Signed-off-by: Yu-Chien Peter Lin <peter.lin@sifive.com>
---
 include/sbi/sbi_domain.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/sbi/sbi_domain.h b/include/sbi/sbi_domain.h
index 16edd4ce..7d523493 100644
--- a/include/sbi/sbi_domain.h
+++ b/include/sbi/sbi_domain.h
@@ -211,6 +211,12 @@ struct sbi_domain {
 	unsigned long next_addr;
 	/** Privilege mode of next booting stage for this domain */
 	unsigned long next_mode;
+	/** Next booting stage World ID for this domain */
+	u32 next_wid;
+	/** Whether next_wid was explicitly set */
+	bool has_next_wid;
+	/** Next booting stage World ID delegation bitmask for this domain */
+	u64 next_widlist;
 	/** Is domain allowed to reset the system */
 	bool system_reset_allowed;
 	/** Is domain allowed to suspend the system */
-- 
2.43.7


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