Messages in this thread Patch in this message | | | From | Andy Lutomirski <> | Subject | [PATCH v3 3/5] random: Seed pools from arch_get_slow_rng_u64 at startup | Date | Wed, 16 Jul 2014 14:45:35 -0700 |
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This should help solve the problem of guests starting out with predictable RNG state.
Signed-off-by: Andy Lutomirski <luto@amacapital.net> --- drivers/char/random.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/char/random.c b/drivers/char/random.c index 0a7ac0a..17ad33d 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1261,6 +1261,13 @@ static void init_std_data(struct entropy_store *r) mix_pool_bytes(r, &rv, sizeof(rv), NULL); } mix_pool_bytes(r, utsname(), sizeof(*(utsname())), NULL); + + for (i = 0; i < 4; i++) { + u64 rv64; + + if (arch_get_slow_rng_u64(&rv64)) + mix_pool_bytes(r, &rv64, sizeof(rv64), NULL); + } } /* -- 1.9.3
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