From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony Liguori Subject: Re: [PATCH 3/3] KVM - add hypercall nr to kvm_run Date: Wed, 18 Jul 2007 14:25:17 -0500 Message-ID: <469E691D.3050305@codemonkey.ws> References: <20070716192447.GA16253@c2.user-mode-linux.org> <469C7C8D.1020600@qumranet.com> <469CCF17.3020709@codemonkey.ws> <20070717160710.GC7965@c2.user-mode-linux.org> <469E3FA2.7060408@codemonkey.ws> <20070718174104.GA8655@c2.user-mode-linux.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: KVM devel , LKML To: Jeff Dike Return-path: In-Reply-To: <20070718174104.GA8655-1LLyehjZOUUZWFFyALql+T+iFHGzDt/a@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org Jeff Dike wrote: > On Wed, Jul 18, 2007 at 11:28:18AM -0500, Anthony Liguori wrote: > >> Within the kernel right (VMCALL is only usable in ring 1). >> > > Yup. > > >> Is it >> terribly important to be able to pass through the syscall arguments in >> registers verses packing them in a data structure and passing a pointer >> to that structure? >> > > An arg block would be fine, too. > Okay, then you should be pretty well insulated against the changing hypercall stuff since you only need one hypercall NR and can use a one argument hypercall. Regards, Anthony Liguori > Jeff > > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/