hw/tpm: Make 'tpm_util.h' publicly accessible as "sysemu/tpm_util.h"

We are going to split the TPM backends from the TPM emulated
hardware in the next commit. Make the TPM util helpers accessible
by moving local "tpm_util.h" to global "sysemu/tpm_util.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Message-id: 20200612085444.8362-12-philmd@redhat.com
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>

1 files changed, 72 insertions, 0 deletions

diff --git a/include/sysemu/tpm_util.h b/include/sysemu/tpm_util.h
new file mode 100644
index 0000000000..63e872c3b2
--- /dev/null
+++ b/include/sysemu/tpm_util.h
@@ -0,0 +1,72 @@
+/*
+ * TPM utility functions
+ *
+ *  Copyright (c) 2010 - 2015 IBM Corporation
+ *  Authors:
+ *    Stefan Berger <stefanb@us.ibm.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>
+ */
+
+#ifndef SYSEMU_TPM_UTIL_H
+#define SYSEMU_TPM_UTIL_H
+
+#include "sysemu/tpm.h"
+#include "qemu/bswap.h"
+
+void tpm_util_write_fatal_error_response(uint8_t *out, uint32_t out_len);
+
+bool tpm_util_is_selftest(const uint8_t *in, uint32_t in_len);
+
+int tpm_util_test_tpmdev(int tpm_fd, TPMVersion *tpm_version);
+
+static inline uint16_t tpm_cmd_get_tag(const void *b)
+{
+    return lduw_be_p(b);
+}
+
+static inline void tpm_cmd_set_tag(void *b, uint16_t tag)
+{
+    stw_be_p(b, tag);
+}
+
+static inline uint32_t tpm_cmd_get_size(const void *b)
+{
+    return ldl_be_p(b + 2);
+}
+
+static inline void tpm_cmd_set_size(void *b, uint32_t size)
+{
+    stl_be_p(b + 2, size);
+}
+
+static inline uint32_t tpm_cmd_get_ordinal(const void *b)
+{
+    return ldl_be_p(b + 6);
+}
+
+static inline uint32_t tpm_cmd_get_errcode(const void *b)
+{
+    return ldl_be_p(b + 6);
+}
+
+static inline void tpm_cmd_set_error(void *b, uint32_t error)
+{
+    stl_be_p(b + 6, error);
+}
+
+void tpm_util_show_buffer(const unsigned char *buffer,
+                          size_t buffer_size, const char *string);
+
+#endif /* SYSEMU_TPM_UTIL_H */