Re: [Xen-devel] [PATCH 03/16] SUPPORT.md: Add some x86 features

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 21.11.17 at 13:24, <George.Dunlap@xxxxxxxxxx> wrote:
>> On Nov 21, 2017, at 11:35 AM, Jan Beulich 
>> Much depends on whether you think "guest" == "DomU". To me
>> Dom0 is a guest, too.
> 
> That’s not how I’ve ever understood those terms.
> 
> A guest at a hotel is someone who is served, and who does not have (legal) 
> access to the internals of the system.  The maids who clean the room and the 
> janitors who sweep the floors are hosts, because they have (to various 
> degrees) extra access designed to help them serve the guests.
> 
> A “guest” is a virtual machine that does not have access to the internals of 
> the system; that is the “target” of virtualization.  As such, the dom0 kernel 
> and all the toolstack / emulation code running in domain 0 are part of the 
> “host”.
> 
> Domain 0 is a domain and a VM, but only domUs are guests.

Okay then; just FTR I've always been considering "domain" ==
"guest" == "VM".

Jan

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel