ACPI: Add GIC Interrupt Translation Service Structure definition

ACPI Spec 6.0 introduces GIC Interrupt Translation Service Structure.
Here we add the definition of the Structure.
Signed-off-by: NShannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: NEric Auger <eric.auger@redhat.com>
Message-id: 1474616617-366-8-git-send-email-eric.auger@redhat.com
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

include/hw/acpi/acpi-defs.h

@@ -294,7 +294,8 @@ typedef struct AcpiMultipleApicTable AcpiMultipleApicTable;
 #define ACPI_APIC_GENERIC_DISTRIBUTOR   12
 #define ACPI_APIC_GENERIC_MSI_FRAME     13
 #define ACPI_APIC_GENERIC_REDISTRIBUTOR 14
-#define ACPI_APIC_RESERVED              15   /* 15 and greater are reserved */
+#define ACPI_APIC_GENERIC_TRANSLATOR    15
+#define ACPI_APIC_RESERVED              16   /* 16 and greater are reserved */
 
 /*
  * MADT sub-structures (Follow MULTIPLE_APIC_DESCRIPTION_TABLE)
@@ -395,6 +396,16 @@ struct AcpiMadtGenericRedistributor {
 
 typedef struct AcpiMadtGenericRedistributor AcpiMadtGenericRedistributor;
 
+struct AcpiMadtGenericTranslator {
+    ACPI_SUB_HEADER_DEF
+    uint16_t reserved;
+    uint32_t translation_id;
+    uint64_t base_address;
+    uint32_t reserved2;
+} QEMU_PACKED;
+
+typedef struct AcpiMadtGenericTranslator AcpiMadtGenericTranslator;
+
 /*
  * Generic Timer Description Table (GTDT)
  */