diff mbox series

[v1,04/19] ACPICA: Interpret SIDP structures in DMAR

Message ID 2239745.irdbgypaU6@rjwysocki.net
State New
Headers show
Series ACPICA: ACPICA 20250404 | expand

Commit Message

Rafael J. Wysocki April 25, 2025, 7:22 p.m. UTC 
From: Alexey Neyman <aneyman@google.com>

ACPICA commit af51f730e0bccf789686cea68e116d5f0b27aacb

Added in revision 3.4 of the VT-d spec. To support SIDP, part of the
previously reserved field in the device scope structure was used to
create a 1-byte "Flags" field.

Link: https://github.com/acpica/acpica/commit/af51f730
Signed-off-by: Alexey Neyman <aneyman@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/actbl1.h | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index 329454c303b9..e0cbda95fec8 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -819,7 +819,8 @@  enum acpi_dmar_type {
 	ACPI_DMAR_TYPE_HARDWARE_AFFINITY = 3,
 	ACPI_DMAR_TYPE_NAMESPACE = 4,
 	ACPI_DMAR_TYPE_SATC = 5,
-	ACPI_DMAR_TYPE_RESERVED = 6	/* 6 and greater are reserved */
+	ACPI_DMAR_TYPE_SIDP = 6,
+	ACPI_DMAR_TYPE_RESERVED = 7	/* 7 and greater are reserved */
 };
 
 /* DMAR Device Scope structure */
@@ -827,7 +828,8 @@  enum acpi_dmar_type {
 struct acpi_dmar_device_scope {
 	u8 entry_type;
 	u8 length;
-	u16 reserved;
+	u8 flags;
+	u8 reserved;
 	u8 enumeration_id;
 	u8 bus;
 };
@@ -923,6 +925,15 @@  struct acpi_dmar_satc {
 	u8 reserved;
 	u16 segment;
 };
+
+/* 6: so_c Integrated Device Property Reporting Structure */
+
+struct acpi_dmar_sidp {
+	struct acpi_dmar_header header;
+	u16 reserved;
+	u16 segment;
+};
+
 /*******************************************************************************
  *
  * DRTM - Dynamic Root of Trust for Measurement table