[v2,13/22] ACPICA: iASL: Add definitions for the VIOT table

Message ID 20210406213028.718796-14-erik.kaneda@intel.com
State New
Headers show
Series
  • ACPICA release 20210331 (ACPI 6.4 support)
Related show

Commit Message

Erik Kaneda April 6, 2021, 9:30 p.m.
From: Jean-Philippe Brucker <jean-philippe@linaro.org>


ACPICA commit fc4e33319c1ee08f20f5c44853dd8426643f6dfd

Add definitions for the VIOT table and its subtables.

Link: https://github.com/acpica/acpica/commit/fc4e3331
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>

Signed-off-by: Bob Moore <robert.moore@intel.com>

Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>

---
 include/acpi/actbl3.h | 66 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

-- 
2.29.2

Patch

diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h
index bf61a70deb22..e9bd7ce65f7c 100644
--- a/include/acpi/actbl3.h
+++ b/include/acpi/actbl3.h
@@ -33,6 +33,7 @@ 
 #define ACPI_SIG_TCPA           "TCPA"	/* Trusted Computing Platform Alliance table */
 #define ACPI_SIG_TPM2           "TPM2"	/* Trusted Platform Module 2.0 H/W interface table */
 #define ACPI_SIG_UEFI           "UEFI"	/* Uefi Boot Optimization Table */
+#define ACPI_SIG_VIOT           "VIOT"	/* Virtual I/O Translation Table */
 #define ACPI_SIG_WAET           "WAET"	/* Windows ACPI Emulated devices Table */
 #define ACPI_SIG_WDAT           "WDAT"	/* Watchdog Action Table */
 #define ACPI_SIG_WDDT           "WDDT"	/* Watchdog Timer Description Table */
@@ -484,6 +485,71 @@  struct acpi_table_uefi {
 	u16 data_offset;	/* Offset of remaining data in table */
 };
 
+/*******************************************************************************
+ *
+ * VIOT - Virtual I/O Translation Table
+ *        Version 1
+ *
+ ******************************************************************************/
+
+struct acpi_table_viot {
+	struct acpi_table_header header;	/* Common ACPI table header */
+	u16 node_count;
+	u16 node_offset;
+	u8 reserved[8];
+};
+
+/* VIOT subtable header */
+
+struct acpi_viot_header {
+	u8 type;
+	u8 reserved;
+	u16 length;
+};
+
+/* Values for Type field above */
+
+enum acpi_viot_node_type {
+	ACPI_VIOT_NODE_PCI_RANGE = 0x01,
+	ACPI_VIOT_NODE_MMIO = 0x02,
+	ACPI_VIOT_NODE_VIRTIO_IOMMU_PCI = 0x03,
+	ACPI_VIOT_NODE_VIRTIO_IOMMU_MMIO = 0x04,
+};
+
+/* VIOT subtables */
+
+struct acpi_viot_pci_range {
+	ACPI_VIOT_HEADER header;
+	u32 endpoint_start;
+	u16 segment_start;
+	u16 segment_end;
+	u16 bdf_start;
+	u16 bdf_end;
+	u16 output_node;
+	u8 reserved[6];
+};
+
+struct acpi_viot_mmio {
+	ACPI_VIOT_HEADER header;
+	u32 endpoint;
+	u64 base_address;
+	u16 output_node;
+	u8 reserved[6];
+};
+
+struct acpi_viot_virtio_iommu_pci {
+	ACPI_VIOT_HEADER header;
+	u16 segment;
+	u16 bdf;
+	u8 reserved[8];
+};
+
+struct acpi_viot_virtio_iommu_mmio {
+	ACPI_VIOT_HEADER header;
+	u8 reserved[4];
+	u64 base_address;
+};
+
 /*******************************************************************************
  *
  * WAET - Windows ACPI Emulated devices Table