disk_info
set_xen_guest_handle(op.u.firmware_info.u.disk_info.edd_params,
#define C(x) info->x = op.u.firmware_info.u.disk_info.x
struct disk_info *ndisks;
ndisks = kzalloc_objs(struct disk_info, newsize, GFP_NOIO);
struct disk_info *disk;
conf->disks = kzalloc_objs(struct disk_info, max_disks);
struct disk_info *p;
struct disk_info *p;
struct disk_info *disks;
} disk_info; /* XEN_FW_DISK_INFO */