Re: [Xen-users] Re: malicious paravirtualized guests: security a

To:	"James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Subject:	Re: [Xen-users] Re: malicious paravirtualized guests: security andisolation
From:	"Vasiliy Baranov" <vasiliy.baranov@xxxxxxxxx>
Date:	Fri, 14 Nov 2008 21:48:38 +0300
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On Wed, Nov 12, 2008 at 5:21 AM, James Harper <james.harper@xxxxxxxxxxxxxxxx> wrote:

When developing the Windows GPLPV drivers I crashed my Dom0 (and
therefore all DomU's) on a few occasions. That was under 3.0.3, 3.0.4,
and possibly some early 3.1.x versions of Xen. As crashing was the exact
opposite of what I was trying to do, I didn't pursue it, but obviously
it has been possible in the past to cause a crash by doing something
wrong in the PV side of things.

Is there a limit on the amount of data you can write to the xenstore?
Overflowing some limit in xenstore could be one method of causing a
crash.

Interesting data point, and question.

Thank you,
Vasiliy

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Re: [Xen-users] Re: malicious paravirtualized guests: security andisolat