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Re: [Xen-devel] RAM security
| To: | "Jonathan Tripathy" <jonnyt@xxxxxxxxxxx>, <Xen-devel@xxxxxxxxxxxxxxxxxxx>,"Keir Fraser" <keir@xxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] RAM security |
| From: | "Jan Beulich" <JBeulich@xxxxxxxxxx> |
| Date: | Mon, 06 Dec 2010 17:05:43 +0000 |
| Cc: | |
| Delivery-date: | Mon, 06 Dec 2010 09:08:04 -0800 |
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| In-reply-to: | <C92254B4.153B9%keir@xxxxxxx> |
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>>> On 06.12.10 at 17:52, Keir Fraser <keir@xxxxxxx> wrote: > On 06/12/2010 08:31, "Jonathan Tripathy" <jonnyt@xxxxxxxxxxx> wrote: > >>>> 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.. > > It probably takes just a couple of seconds to scrub 8GB. Xen does the Plus it doesn't scrub the memory assigned to Dom0. > scrubbing immediately before starting dom0, and you should see it say > 'Scrubbing RAM...' and extra dots continur to appear until scrubbing is > complete. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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