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Virt RNG?

From:  Jeff Garzik <>
To:  LKML <>,
Subject:  Virt RNG?
Date:  Thu, 15 May 2008 14:48:53 -0400
Message-ID:  <>
Cc:  Rusty Russell <>,, Herbert Xu <>, Avi Kivity <>
Archive-link:  Article

Has anyone yet written a "hw" RNG module for virt, that reads the host's 
random number pool?

All this talk[1] about IRQF_SAMPLE_RANDOM in network drivers reminds me 
that virt guest instances should be grabbing random numbers from the 
host, especially if the host has a hardware RNG.


[1] lkml&netdev thread: "[PATCH] drivers/net: remove network drivers' 
last few uses of IRQF_SAMPLE_RANDOM"

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