3 files changed, 32 insertions, 2 deletions
diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h
index f503ec4a97..59cf277434 100644
--- a/include/hw/acpi/acpi-defs.h
+++ b/include/hw/acpi/acpi-defs.h
@@ -450,6 +450,9 @@ typedef struct AcpiTableMcfg AcpiTableMcfg;
 
 /*
  * TCPA Description Table
+ *
+ * Following Level 00, Rev 00.37 of specs:
+ * http://www.trustedcomputinggroup.org/resources/tcg_acpi_specification
  */
 struct Acpi20Tcpa {
     ACPI_TABLE_HEADER_DEF                    /* ACPI common table header */
@@ -459,6 +462,21 @@ struct Acpi20Tcpa {
 } QEMU_PACKED;
 typedef struct Acpi20Tcpa Acpi20Tcpa;
 
+/*
+ * TPM2
+ *
+ * Following Level 00, Rev 00.37 of specs:
+ * http://www.trustedcomputinggroup.org/resources/tcg_acpi_specification
+ */
+struct Acpi20TPM2 {
+    ACPI_TABLE_HEADER_DEF
+    uint16_t platform_class;
+    uint16_t reserved;
+    uint64_t control_area_address;
+    uint32_t start_method;
+} QEMU_PACKED;
+typedef struct Acpi20TPM2 Acpi20TPM2;
+
 /* DMAR - DMA Remapping table r2.2 */
 struct AcpiTableDmar {
     ACPI_TABLE_HEADER_DEF
diff --git a/include/hw/acpi/tpm.h b/include/hw/acpi/tpm.h
index 792fcbf5b1..6d516c6a7f 100644
--- a/include/hw/acpi/tpm.h
+++ b/include/hw/acpi/tpm.h
@@ -26,4 +26,9 @@
 #define TPM_TCPA_ACPI_CLASS_CLIENT  0
 #define TPM_TCPA_ACPI_CLASS_SERVER  1
 
+#define TPM2_ACPI_CLASS_CLIENT      0
+#define TPM2_ACPI_CLASS_SERVER      1
+
+#define TPM2_START_METHOD_MMIO      6
+
 #endif /* HW_ACPI_TPM_H */
diff --git a/include/sysemu/tpm.h b/include/sysemu/tpm.h
index 848df412db..c1438907de 100644
--- a/include/sysemu/tpm.h
+++ b/include/sysemu/tpm.h
@@ -26,11 +26,18 @@ typedef enum  TPMVersion {
     TPM_VERSION_2_0 = 2,
 } TPMVersion;
 
+TPMVersion tpm_tis_get_tpm_version(Object *obj);
+
 #define TYPE_TPM_TIS                "tpm-tis"
 
-static inline bool tpm_find(void)
+static inline TPMVersion tpm_get_version(void)
 {
-    return object_resolve_path_type("", TYPE_TPM_TIS, NULL);
+    Object *obj = object_resolve_path_type("", TYPE_TPM_TIS, NULL);
+
+    if (obj) {
+        return tpm_tis_get_tpm_version(obj);
+    }
+    return TPM_VERSION_UNSPEC;
 }
 
 #endif /* QEMU_TPM_H */