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Re: [Xen-devel] RAM security

To: Keir Fraser <keir@xxxxxxx>, Xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] RAM security
From: Jonathan Tripathy <jonnyt@xxxxxxxxxxx>
Date: Mon, 06 Dec 2010 16:31:49 +0000
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Xen always scrubs memory on behalf of a dead domain.

3) If the physical server was shutdown (e.g. plug pulled), I'm guessing
this will presetn a problem?
Xen scrubs all memory during boot, unless told not to via a boot parameter.

Now this bit of code makes me happy!

Just wondering, if Xen scrubs all memory during boot, why is booting the Hypervisor so fast? My machine has 8GB of RAM and starts nice and snappy..

4) Why doesn't Xen scrub the RAM before giving it to the DomU?
It does in the above circumstances. Otherwise it is up to the domU, and why
not.


I think that with the on-booting and the on-destroy scrubbing, my 4) point above is moot :)

Cheers

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