[Xen-devel] [PATCH v5 19/22] ACPICA: Headers: Add support for CSRT and DBG2 ACPI tables.

[Shannon Zhao <zhaoshenglong@xxxxxxxxxx>]

From: Bob Moore <robert.moore@xxxxxxxxx>

These tables are defined outside of the ACPI specification.

Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
Signed-off-by: Feng Tang <feng.tang@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
[Linux commit 4e2f9c278ad84196991fcf6f6646a3e15967fe90]
[only port the DBG2 changes]
Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
---
Cc: Jan Beulich <jbeulich@xxxxxxxx>
V5: port from Linux
---
 xen/include/acpi/actbl2.h | 57 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)

diff --git a/xen/include/acpi/actbl2.h b/xen/include/acpi/actbl2.h
index 87bc6b3..1ad67f8 100644
--- a/xen/include/acpi/actbl2.h
+++ b/xen/include/acpi/actbl2.h
@@ -63,6 +63,7 @@
  */
 #define ACPI_SIG_ASF            "ASF!" /* Alert Standard Format table */
 #define ACPI_SIG_BOOT           "BOOT" /* Simple Boot Flag Table */
+#define ACPI_SIG_DBG2           "DBG2" /* Debug Port table type 2 */
 #define ACPI_SIG_DBGP           "DBGP" /* Debug Port table */
 #define ACPI_SIG_DMAR           "DMAR" /* DMA Remapping table */
 #define ACPI_SIG_HPET           "HPET" /* High Precision Event Timer table */
@@ -232,6 +233,62 @@ struct acpi_table_boot {
 
 
/*******************************************************************************
  *
+ * DBG2 - Debug Port Table 2
+ *        Version 0 (Both main table and subtables)
+ *
+ * Conforms to "Microsoft Debug Port Table 2 (DBG2)", May 22 2012.
+ *
+ 
******************************************************************************/
+
+struct acpi_table_dbg2 {
+       struct acpi_table_header header;        /* Common ACPI table header */
+       u32 info_offset;
+       u32 info_count;
+};
+
+/* Debug Device Information Subtable */
+
+struct acpi_dbg2_device {
+       u8 revision;
+       u16 length;
+       u8 register_count;      /* Number of base_address registers */
+       u16 namepath_length;
+       u16 namepath_offset;
+       u16 oem_data_length;
+       u16 oem_data_offset;
+       u16 port_type;
+       u16 port_subtype;
+       u16 reserved;
+       u16 base_address_offset;
+       u16 address_size_offset;
+       /*
+        * Data that follows:
+        *    base_address (required) - Each in 12-byte Generic Address 
Structure format.
+        *    address_size (required) - Array of u32 sizes corresponding to 
each base_address register.
+        *    Namepath    (required) - Null terminated string. Single dot if 
not supported.
+        *    oem_data    (optional) - Length is oem_data_length.
+        */
+};
+
+/* Types for port_type field above */
+
+#define ACPI_DBG2_SERIAL_PORT       0x8000
+#define ACPI_DBG2_1394_PORT         0x8001
+#define ACPI_DBG2_USB_PORT          0x8002
+#define ACPI_DBG2_NET_PORT          0x8003
+
+/* Subtypes for port_subtype field above */
+
+#define ACPI_DBG2_16550_COMPATIBLE  0x0000
+#define ACPI_DBG2_16550_SUBSET      0x0001
+
+#define ACPI_DBG2_1394_STANDARD     0x0000
+
+#define ACPI_DBG2_USB_XHCI          0x0000
+#define ACPI_DBG2_USB_EHCI          0x0001
+
+/*******************************************************************************
+ *
  * DBGP - Debug Port table
  *        Version 1
  *
-- 
2.0.4



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