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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/ipxe/src/tests/entropy_sample.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/tests/entropy_sample.c')
-rw-r--r--qemu/roms/ipxe/src/tests/entropy_sample.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/tests/entropy_sample.c b/qemu/roms/ipxe/src/tests/entropy_sample.c
new file mode 100644
index 000000000..95a662e3e
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+++ b/qemu/roms/ipxe/src/tests/entropy_sample.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/** @file
+ *
+ * Entropy sampling
+ *
+ */
+
+#include <stdio.h>
+#include <ipxe/entropy.h>
+#include <ipxe/test.h>
+
+/** Total number of test samples */
+#define SAMPLE_COUNT 65536
+
+/** Number of samples per block */
+#define SAMPLE_BLOCKSIZE 256
+
+/**
+ * Generate entropy samples for external testing
+ *
+ */
+static void entropy_sample_test_exec ( void ) {
+ static noise_sample_t samples[SAMPLE_BLOCKSIZE];
+ unsigned int i;
+ unsigned int j;
+ int rc;
+
+ /* Collect and print blocks of samples */
+ for ( i = 0 ; i < ( SAMPLE_COUNT / SAMPLE_BLOCKSIZE ) ; i++ ) {
+
+ /* Collect one block of samples */
+ rc = entropy_enable();
+ ok ( rc == 0 );
+ for ( j = 0 ; j < SAMPLE_BLOCKSIZE ; j++ ) {
+ rc = get_noise ( &samples[j] );
+ ok ( rc == 0 );
+ }
+ entropy_disable();
+
+ /* Print out sample values */
+ for ( j = 0 ; j < SAMPLE_BLOCKSIZE ; j++ ) {
+ printf ( "SAMPLE %d %d\n", ( i * SAMPLE_BLOCKSIZE + j ),
+ samples[j] );
+ }
+ }
+}
+
+/** Entropy sampling self-test */
+struct self_test entropy_sample_test __self_test = {
+ .name = "entropy_sample",
+ .exec = entropy_sample_test_exec,
+};