On Fri, 30 Mar 2012, Mark Post wrote:
On 3/30/2012 at 11:31 AM, Lee Stewart <[email protected]> wrote:
I've been trying to think of any reason to ever have cio_ignore in a VM
guest. I can see real use for it in an LPAR where you may have
thousands of devices that have nothing to do with the Linux instance.
But in a virtual machine I only give it the devices I want it to have in
the first place.
I'm guessing this is a Red Hat customer, correct?
I see mention of it on slide 24 in Brad Hinson's (of Red Hat)
presentation at:
http://www.vm.ibm.com/education/lvc/lvc1215c.pdf
which is part of a larger presentation on Red Hat's approach
of a single unified code base for both virtualized and 'real'
hardware
(I too am not, nor have ever been an Red Hat employee, but my
friend Google found the item for me)
It would seem in a VM that one might want to disable
devices that would otherwise be detected, for security
reasons, and perhaps performance reasons
-- Russ herrold
614 488 6954
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