[Xen-devel] [PATCH v6 4/6] Qemu-Xen-vTPM: Move tpm_passthrough_is_selftest() into tpm_util.c

[Quan Xu <quan.xu@xxxxxxxxx>]

and rename it to tpm_util_is_selftest().

Signed-off-by: Quan Xu <quan.xu@xxxxxxxxx>

--Changes in v6:
 -Remove the redundant copy right.
 -Reduce the includes to its minimum.
---
 hw/tpm/Makefile.objs             |  2 +-
 hw/tpm/tpm_passthrough.c         | 13 +------------
 hw/tpm/tpm_util.c                | 39 +++++++++++++++++++++++++++++++++++++++
 include/sysemu/tpm_backend_int.h |  1 +
 4 files changed, 42 insertions(+), 13 deletions(-)
 create mode 100644 hw/tpm/tpm_util.c

diff --git a/hw/tpm/Makefile.objs b/hw/tpm/Makefile.objs
index 57919fa..e8fca65 100644
--- a/hw/tpm/Makefile.objs
+++ b/hw/tpm/Makefile.objs
@@ -1,3 +1,3 @@
-common-obj-$(CONFIG_TPM_TIS) += tpm_tis.o
+common-obj-$(CONFIG_TPM_TIS) += tpm_tis.o tpm_util.o
 common-obj-$(CONFIG_TPM_PASSTHROUGH) += tpm_passthrough.o
 common-obj-$(CONFIG_TPM_XENSTUBDOMS) += xen_vtpm_frontend.o
diff --git a/hw/tpm/tpm_passthrough.c b/hw/tpm/tpm_passthrough.c
index 2a45071..ff08e15 100644
--- a/hw/tpm/tpm_passthrough.c
+++ b/hw/tpm/tpm_passthrough.c
@@ -112,17 +112,6 @@ static void tpm_write_fatal_error_response(uint8_t *out, 
uint32_t out_len)
     }
 }
 
-static bool tpm_passthrough_is_selftest(const uint8_t *in, uint32_t in_len)
-{
-    struct tpm_req_hdr *hdr = (struct tpm_req_hdr *)in;
-
-    if (in_len >= sizeof(*hdr)) {
-        return (be32_to_cpu(hdr->ordinal) == TPM_ORD_ContinueSelfTest);
-    }
-
-    return false;
-}
-
 static int tpm_passthrough_unix_tx_bufs(TPMPassthruState *tpm_pt,
                                         const uint8_t *in, uint32_t in_len,
                                         uint8_t *out, uint32_t out_len,
@@ -136,7 +125,7 @@ static int tpm_passthrough_unix_tx_bufs(TPMPassthruState 
*tpm_pt,
     tpm_pt->tpm_executing = true;
     *selftest_done = false;
 
-    is_selftest = tpm_passthrough_is_selftest(in, in_len);
+    is_selftest = tpm_util_is_selftest(in, in_len);
 
     ret = tpm_passthrough_unix_write(tpm_pt->tpm_fd, in, in_len);
     if (ret != in_len) {
diff --git a/hw/tpm/tpm_util.c b/hw/tpm/tpm_util.c
new file mode 100644
index 0000000..73be8c5
--- /dev/null
+++ b/hw/tpm/tpm_util.c
@@ -0,0 +1,39 @@
+/*
+ *  TPM util functions
+ *
+ * *  Copyright (c) 2015 Intel Corporation
+ *  Authors:
+ *    Quan Xu <quan.xu@xxxxxxxxx>
+ *
+ *  Copyright (c) 2010 - 2013 IBM Corporation
+ *  Authors:
+ *    Stefan Berger <stefanb@xxxxxxxxxx>
+ *
+ * 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/>
+ */
+
+#include "sysemu/tpm_backend.h"
+#include "tpm_int.h"
+#include "sysemu/tpm_backend_int.h"
+
+bool tpm_util_is_selftest(const uint8_t *in, uint32_t in_len)
+{
+    struct tpm_req_hdr *hdr = (struct tpm_req_hdr *)in;
+
+    if (in_len >= sizeof(*hdr)) {
+        return (be32_to_cpu(hdr->ordinal) == TPM_ORD_ContinueSelfTest);
+    }
+
+    return false;
+}
diff --git a/include/sysemu/tpm_backend_int.h b/include/sysemu/tpm_backend_int.h
index 05d94d0..e18acab 100644
--- a/include/sysemu/tpm_backend_int.h
+++ b/include/sysemu/tpm_backend_int.h
@@ -34,6 +34,7 @@ void tpm_backend_thread_create(TPMBackendThread *tbt,
 void tpm_backend_thread_end(TPMBackendThread *tbt);
 void tpm_backend_thread_tpm_reset(TPMBackendThread *tbt,
                                   GFunc func, gpointer user_data);
+bool tpm_util_is_selftest(const uint8_t *in, uint32_t in_len);
 
 typedef enum TPMBackendCmd {
     TPM_BACKEND_CMD_INIT = 1,
-- 
1.8.3.2


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