Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / tests / entropy_sample.c

diff --git a/qemu/roms/ipxe/src/tests/entropy_sample.c b/qemu/roms/ipxe/src/tests/entropy_sample.c
new file mode 100644 (file)
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+++ b/qemu/roms/ipxe/src/tests/entropy_sample.c
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+/*
+ * 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,
+};