On 07/29/2016 05:11 PM, Julien Grall wrote: > Which lead to my next question. For instance, we have an app A which is > built for Xen 4.N and they want to also support Xen 4.(N + 1) which will > set more registers and take advantage of it. How the app will > differentiate the 2 versions?
We currenly have macros like VM_EVENT_INTERFACE_VERSION that can be incremented so that applications can know at compile-time which interface they get. At runtime, I suppose we could use code similar to what runs when "xl info" is called (which outputs xen_major, xen_minor and xen_extra, or the complete xen_version). Thanks, Razvan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
