This is xnu-11215.1.10. See this file in:
// declaration of vm_wire in host_priv.defs
// in 32-bit userspace is incompatible with the kernel's definition
// rdar://118258929

subsystem KernelServer replacement_host_priv 400;
#include <mach/std_types.defs>
#include <mach/mach_types.defs>
#include <mach/clock_types.defs>
#include <mach_debug/mach_debug_types.defs>

skip; // host_get_boot_info
skip; // host_reboot
skip; // host_priv_statistics
skip; // host_default_memory_manager

routine replacement_vm_wire(
		host_priv	: host_priv_t;
		task		: vm_map_t;
		address		: mach_vm_address_t;  // was vm_address_t
		size		: mach_vm_size_t;  // was vm_size_t
		desired_access	: vm_prot_t);