XENDISPL_IN_RING_OFFS 855 include/xen/interface/io/displif.h #define XENDISPL_IN_RING_SIZE (XENDISPL_EVENT_PAGE_SIZE - XENDISPL_IN_RING_OFFS) XENDISPL_IN_RING_OFFS 858 include/xen/interface/io/displif.h ((struct xendispl_evt *)((char *)(page) + XENDISPL_IN_RING_OFFS))