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Index: sys/dev/random/probe.c
===================================================================
--- sys/dev/random/probe.c (revision 260523)
+++ sys/dev/random/probe.c (working copy)
@@ -30,6 +30,8 @@ __FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/random.h>
#include <sys/selinfo.h>
@@ -57,7 +59,12 @@ random_ident_hardware(struct random_systat *systat
/* Then go looking for hardware */
#if defined(__amd64__) || (defined(__i386__) && !defined(PC98))
if (via_feature_rng & VIA_HAS_RNG) {
- *systat = random_nehemiah;
+ int enable;
+
+ enable = 0;
+ TUNABLE_INT_FETCH("hw.nehemiah_rng_enable", &enable);
+ if (enable)
+ *systat = random_nehemiah;
}
#endif
}
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