linux-kernel - [PATCH v2 2/7] ACPICA: Add Arm IORT IWB node definitions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20251218-gicv5-host-acpi-v2-2-eec76cd1d40b@kernel.org>
Date: Thu, 18 Dec 2025 11:14:28 +0100
From: Lorenzo Pieralisi <lpieralisi@...nel.org>
To: "Rafael J. Wysocki" <rafael@...nel.org>, Len Brown <lenb@...nel.org>, 
 Robert Moore <robert.moore@...el.com>, Thomas Gleixner <tglx@...utronix.de>, 
 Hanjun Guo <guohanjun@...wei.com>, Sudeep Holla <sudeep.holla@....com>, 
 Marc Zyngier <maz@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>
Cc: linux-acpi@...r.kernel.org, acpica-devel@...ts.linux.dev, 
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-pci@...r.kernel.org, Lorenzo Pieralisi <lpieralisi@...nel.org>, 
 Jose Marinho <jose.marinho@....com>
Subject: [PATCH v2 2/7] ACPICA: Add Arm IORT IWB node definitions

From: Jose Marinho <jose.marinho@....com>

The IORT IUWB node is defined in IORT issue E.g
See https://developer.arm.com/documentation/den0049/eg

Link: https://github.com/acpica/acpica/commit/a90dc2f5
Signed-off-by: Jose Marinho <jose.marinho@....com>
Signed-off-by: Bob Moore <robert.moore@...el.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@...nel.org>
---
 include/acpi/actbl2.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index fdabc6c64a9c..ba1a36d23e32 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -680,6 +680,7 @@ enum acpi_iort_node_type {
 	ACPI_IORT_NODE_SMMU_V3 = 0x04,
 	ACPI_IORT_NODE_PMCG = 0x05,
 	ACPI_IORT_NODE_RMR = 0x06,
+	ACPI_IORT_NODE_IWB = 0x07,
 };

 struct acpi_iort_id_mapping {
@@ -858,6 +859,12 @@ struct acpi_iort_rmr_desc {
 	u32 reserved;
 };

+struct acpi_iort_iwb {
+	u64 base_address;
+	u16 iwb_index;		/* Unique IWB identifier matching with the IWB GSI namespace. */
+	char device_name[];	/* Path of the IWB namespace object */
+};
+
 /*******************************************************************************
  *
  * IVRS - I/O Virtualization Reporting Structure

-- 
2.50.1