From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: Re: [PATCH] Linux: 6 arguments hypercall v3 Date: Fri, 24 Jun 2011 15:43:18 -0700 Message-ID: <4E051306.4060109@goop.org> References: <20110624151324.GB356@spongy.cam.xci-test.com> <4E04C8AA.2040506@goop.org> <20110624221513.GA8916@spongy.cam.xci-test.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20110624221513.GA8916@spongy.cam.xci-test.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Jean Guyader Cc: Ian Campbell , "xen-devel@lists.xensource.com" , Jean Guyader , Konrad Rzeszutek Wilk List-Id: xen-devel@lists.xenproject.org On 06/24/2011 03:15 PM, Jean Guyader wrote: > I only tested it gcc 4.4. > > We could still use the v2 which is not as nice, but it doesn't try to > load eax twice. Let me know which one you will feel better about. I feel best about the one you've successfully tested with a number of older compilers ;) >> What hypercalls have 6 args? >> > I'm planning on upstream v4v which is a inter vm memory transport > based on hypervisor memcpy. The send hypercall takes 6 arguments. Does it have to? Couldn't it take a pointer to a struct or something? J