Re: [Xen-users] flexible memory management?

["Jerry Amundson" <jamundso@xxxxxxxxx>]

On 2/8/07, Gary W. Smith <gary@xxxxxxxxxxxxxxx> wrote:
> > So it works! memory is transferred from dom0 to domU on demand.
> >
> > But as i reduce the domU's size with "xm mem-set", the memory does not
> > flow back to dom0 automatically.
> >
> > I wonder, if that's possible too.
>
> That is correct, Dom0 doesn't seem to grow back.
An "old-school" type, like myself, is also reassured somewhat, by
allocating only what dom0 would only ever need - net services,
compiling, running programs, etc. is isolated to domu's. Then, in the
event dom0 is ever compromised (though very highly unlikely), or even
if I accidentally start something there, dom0 can't take memory away -
a DoS prevention, of sorts...

jerry

--
"Pay no attention to that man behind the curtain!"

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