31 lines
995 B
Diff
31 lines
995 B
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Arjan van de Ven <arjan@linux.intel.com>
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Date: Fri, 29 Jul 2016 19:10:52 +0000
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Subject: [PATCH] give rdrand some credit
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try to credit rdrand/rdseed with some entropy
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In VMs but even modern hardware, we're super starved for entropy, and while we can
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and do wear a tin foil hat, it's very hard to argue that
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rdrand and rdtsc add zero entropy.
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---
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drivers/char/random.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/drivers/char/random.c b/drivers/char/random.c
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index 01b8868b9bed..8544472650ea 100644
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--- a/drivers/char/random.c
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+++ b/drivers/char/random.c
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@@ -1937,6 +1937,8 @@ static void __init init_std_data(struct entropy_store *r)
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if (!arch_get_random_seed_long(&rv) &&
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!arch_get_random_long(&rv))
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rv = random_get_entropy();
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+ else
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+ credit_entropy_bits(r, 1);
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mix_pool_bytes(r, &rv, sizeof(rv));
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}
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mix_pool_bytes(r, utsname(), sizeof(*(utsname())));
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--
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https://clearlinux.org
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