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-rw-r--r--include/sysemu/tpm.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/include/sysemu/tpm.h b/include/sysemu/tpm.h
new file mode 100644
index 000000000..68b220646
--- /dev/null
+++ b/include/sysemu/tpm.h
@@ -0,0 +1,85 @@
+/*
+ * Public TPM functions
+ *
+ * Copyright (C) 2011-2013 IBM Corporation
+ *
+ * Authors:
+ * Stefan Berger <stefanb@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+#ifndef QEMU_TPM_H
+#define QEMU_TPM_H
+
+#include "qapi/qapi-types-tpm.h"
+#include "qom/object.h"
+
+#ifdef CONFIG_TPM
+
+int tpm_config_parse(QemuOptsList *opts_list, const char *optarg);
+int tpm_init(void);
+void tpm_cleanup(void);
+
+typedef enum TPMVersion {
+ TPM_VERSION_UNSPEC = 0,
+ TPM_VERSION_1_2 = 1,
+ TPM_VERSION_2_0 = 2,
+} TPMVersion;
+
+#define TYPE_TPM_IF "tpm-if"
+typedef struct TPMIfClass TPMIfClass;
+DECLARE_CLASS_CHECKERS(TPMIfClass, TPM_IF,
+ TYPE_TPM_IF)
+#define TPM_IF(obj) \
+ INTERFACE_CHECK(TPMIf, (obj), TYPE_TPM_IF)
+
+typedef struct TPMIf TPMIf;
+
+struct TPMIfClass {
+ InterfaceClass parent_class;
+
+ enum TpmModel model;
+ void (*request_completed)(TPMIf *obj, int ret);
+ enum TPMVersion (*get_version)(TPMIf *obj);
+};
+
+#define TYPE_TPM_TIS_ISA "tpm-tis"
+#define TYPE_TPM_TIS_SYSBUS "tpm-tis-device"
+#define TYPE_TPM_CRB "tpm-crb"
+#define TYPE_TPM_SPAPR "tpm-spapr"
+
+#define TPM_IS_TIS_ISA(chr) \
+ object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS_ISA)
+#define TPM_IS_TIS_SYSBUS(chr) \
+ object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS_SYSBUS)
+#define TPM_IS_CRB(chr) \
+ object_dynamic_cast(OBJECT(chr), TYPE_TPM_CRB)
+#define TPM_IS_SPAPR(chr) \
+ object_dynamic_cast(OBJECT(chr), TYPE_TPM_SPAPR)
+
+/* returns NULL unless there is exactly one TPM device */
+static inline TPMIf *tpm_find(void)
+{
+ Object *obj = object_resolve_path_type("", TYPE_TPM_IF, NULL);
+
+ return TPM_IF(obj);
+}
+
+static inline TPMVersion tpm_get_version(TPMIf *ti)
+{
+ if (!ti) {
+ return TPM_VERSION_UNSPEC;
+ }
+
+ return TPM_IF_GET_CLASS(ti)->get_version(ti);
+}
+
+#else /* CONFIG_TPM */
+
+#define tpm_init() (0)
+#define tpm_cleanup()
+
+#endif /* CONFIG_TPM */
+
+#endif /* QEMU_TPM_H */