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

RE: [Xen-devel] wbinvd optimization for pass through domain

  • To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>, "xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Dong, Eddie" <eddie.dong@xxxxxxxxx>
  • Date: Mon, 19 Nov 2007 13:08:59 +0800
  • Delivery-date: Sun, 18 Nov 2007 21:09:34 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcgnNGm0msigmGgJTgihY7rnMwWIOQBOW2tOAH8DHEA=
  • Thread-topic: [Xen-devel] wbinvd optimization for pass through domain

xen-devel-bounces@xxxxxxxxxxxxxxxxxxx wrote:
> Does CLFLUSH cause vmexit? If not this seems a bit dodgy.
CLFLUSH doesn't cause VM Exit, but it is different with wbinvd.
the later one only write back the dirty lines in local processor, 
while CLFLUSH invalidation is broadcasted thru the cache
coherency domain.


Xen-devel mailing list



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