[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: [Xen-devel] VMM detection

To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, Wu Bingzheng <wubingzheng@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
From: "Li, Xin" <xin.li@xxxxxxxxx>
Date: Fri, 6 Mar 2009 09:56:44 +0800
Accept-language: en-US
Acceptlanguage: en-US
Cc:
Delivery-date: Thu, 05 Mar 2009 17:58:18 -0800
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
Thread-index: AcmdQMxPZmYVPnfiRuKJ2r8QTbXilQALNiQ3ACQykrA=
Thread-topic: [Xen-devel] VMM detection

>> I want to know if we can use these instructions to detect VMM on a HVM
>guest.
>
>No, they behave 'natively' when running as an HVM guest. The guest cannot
>easily tell it is running on a VMM.

How about from performance side? At least some instructions are much slower
in a VM than native today.
-Xin

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

References:
- Re: [Xen-devel] VMM detection
  - From: Wu Bingzheng
- Re: [Xen-devel] VMM detection
  - From: Keir Fraser

Prev by Date: Re: [Xen-devel] [rfc 00/18] ioemu: use devfn instead of slots as the unit for passthrough
Next by Date: Re: [Xen-devel] VMM detection
Previous by thread: Re: [Xen-devel] VMM detection
Next by thread: Re: [Xen-devel] VMM detection
Index(es):
- Date
- Thread

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.