diff --git a/lib/libsys/_libsys.h b/lib/libsys/_libsys.h
--- a/lib/libsys/_libsys.h
+++ b/lib/libsys/_libsys.h
@@ -32,6 +32,7 @@
 struct itimerval;
 struct jail;
 struct kevent;
+struct kexec_segment;
 struct kld_file_stat;
 struct mac;
 struct module_stat;
@@ -468,6 +469,7 @@
 typedef int (__sys_exterrctl_t)(u_int, u_int, void *);
 typedef int (__sys_inotify_add_watch_at_t)(int, int, const char *, uint32_t);
 typedef int (__sys_inotify_rm_watch_t)(int, int);
+typedef int (__sys_kexec_load_t)(uint64_t, unsigned long, struct kexec_segment *, unsigned long);
 
 void __sys_exit(int rval);
 int __sys_fork(void);
@@ -872,6 +874,7 @@
 int __sys_exterrctl(u_int op, u_int flags, void * ptr);
 int __sys_inotify_add_watch_at(int fd, int dfd, const char * path, uint32_t mask);
 int __sys_inotify_rm_watch(int fd, int wd);
+int __sys_kexec_load(uint64_t entry, unsigned long nseg, struct kexec_segment * segments, unsigned long flags);
 __END_DECLS
 
 #endif /* __LIBSYS_H_ */
diff --git a/lib/libsys/syscalls.map b/lib/libsys/syscalls.map
--- a/lib/libsys/syscalls.map
+++ b/lib/libsys/syscalls.map
@@ -813,4 +813,6 @@
 	__sys_inotify_add_watch_at;
 	_inotify_rm_watch;
 	__sys_inotify_rm_watch;
+	_kexec_load;
+	__sys_kexec_load;
 };
diff --git a/sys/kern/init_sysent.c b/sys/kern/init_sysent.c
--- a/sys/kern/init_sysent.c
+++ b/sys/kern/init_sysent.c
@@ -661,4 +661,5 @@
 	{ .sy_narg = AS(exterrctl_args), .sy_call = (sy_call_t *)sys_exterrctl, .sy_auevent = AUE_NULL, .sy_flags = SYF_CAPENABLED, .sy_thrcnt = SY_THR_STATIC },	/* 592 = exterrctl */
 	{ .sy_narg = AS(inotify_add_watch_at_args), .sy_call = (sy_call_t *)sys_inotify_add_watch_at, .sy_auevent = AUE_INOTIFY, .sy_flags = SYF_CAPENABLED, .sy_thrcnt = SY_THR_STATIC },	/* 593 = inotify_add_watch_at */
 	{ .sy_narg = AS(inotify_rm_watch_args), .sy_call = (sy_call_t *)sys_inotify_rm_watch, .sy_auevent = AUE_INOTIFY, .sy_flags = SYF_CAPENABLED, .sy_thrcnt = SY_THR_STATIC },	/* 594 = inotify_rm_watch */
+	{ .sy_narg = AS(kexec_load_args), .sy_call = (sy_call_t *)sys_kexec_load, .sy_auevent = AUE_NULL, .sy_flags = SYF_CAPENABLED, .sy_thrcnt = SY_THR_STATIC },	/* 595 = kexec_load */
 };
diff --git a/sys/kern/syscalls.c b/sys/kern/syscalls.c
--- a/sys/kern/syscalls.c
+++ b/sys/kern/syscalls.c
@@ -600,4 +600,5 @@
 	"exterrctl",			/* 592 = exterrctl */
 	"inotify_add_watch_at",			/* 593 = inotify_add_watch_at */
 	"inotify_rm_watch",			/* 594 = inotify_rm_watch */
+	"kexec_load",			/* 595 = kexec_load */
 };
diff --git a/sys/kern/systrace_args.c b/sys/kern/systrace_args.c
--- a/sys/kern/systrace_args.c
+++ b/sys/kern/systrace_args.c
@@ -3500,6 +3500,16 @@
 		*n_args = 2;
 		break;
 	}
+	/* kexec_load */
+	case 595: {
+		struct kexec_load_args *p = params;
+		uarg[a++] = p->entry; /* uint64_t */
+		uarg[a++] = p->nseg; /* unsigned long */
+		uarg[a++] = (intptr_t)p->segments; /* struct kexec_segment * */
+		uarg[a++] = p->flags; /* unsigned long */
+		*n_args = 4;
+		break;
+	}
 	default:
 		*n_args = 0;
 		break;
@@ -9367,6 +9377,25 @@
 			break;
 		};
 		break;
+	/* kexec_load */
+	case 595:
+		switch (ndx) {
+		case 0:
+			p = "uint64_t";
+			break;
+		case 1:
+			p = "unsigned long";
+			break;
+		case 2:
+			p = "userland struct kexec_segment *";
+			break;
+		case 3:
+			p = "unsigned long";
+			break;
+		default:
+			break;
+		};
+		break;
 	default:
 		break;
 	};
@@ -11365,6 +11394,11 @@
 		if (ndx == 0 || ndx == 1)
 			p = "int";
 		break;
+	/* kexec_load */
+	case 595:
+		if (ndx == 0 || ndx == 1)
+			p = "int";
+		break;
 	default:
 		break;
 	};
diff --git a/sys/sys/syscall.h b/sys/sys/syscall.h
--- a/sys/sys/syscall.h
+++ b/sys/sys/syscall.h
@@ -531,4 +531,5 @@
 #define	SYS_exterrctl	592
 #define	SYS_inotify_add_watch_at	593
 #define	SYS_inotify_rm_watch	594
-#define	SYS_MAXSYSCALL	595
+#define	SYS_kexec_load	595
+#define	SYS_MAXSYSCALL	596
diff --git a/sys/sys/syscall.mk b/sys/sys/syscall.mk
--- a/sys/sys/syscall.mk
+++ b/sys/sys/syscall.mk
@@ -436,4 +436,5 @@
 	setcred.o \
 	exterrctl.o \
 	inotify_add_watch_at.o \
-	inotify_rm_watch.o
+	inotify_rm_watch.o \
+	kexec_load.o
diff --git a/sys/sys/sysproto.h b/sys/sys/sysproto.h
--- a/sys/sys/sysproto.h
+++ b/sys/sys/sysproto.h
@@ -1901,6 +1901,12 @@
 	char fd_l_[PADL_(int)]; int fd; char fd_r_[PADR_(int)];
 	char wd_l_[PADL_(int)]; int wd; char wd_r_[PADR_(int)];
 };
+struct kexec_load_args {
+	char entry_l_[PADL_(uint64_t)]; uint64_t entry; char entry_r_[PADR_(uint64_t)];
+	char nseg_l_[PADL_(unsigned long)]; unsigned long nseg; char nseg_r_[PADR_(unsigned long)];
+	char segments_l_[PADL_(struct kexec_segment *)]; struct kexec_segment * segments; char segments_r_[PADR_(struct kexec_segment *)];
+	char flags_l_[PADL_(unsigned long)]; unsigned long flags; char flags_r_[PADR_(unsigned long)];
+};
 int	sys_exit(struct thread *, struct exit_args *);
 int	sys_fork(struct thread *, struct fork_args *);
 int	sys_read(struct thread *, struct read_args *);
@@ -2305,6 +2311,7 @@
 int	sys_exterrctl(struct thread *, struct exterrctl_args *);
 int	sys_inotify_add_watch_at(struct thread *, struct inotify_add_watch_at_args *);
 int	sys_inotify_rm_watch(struct thread *, struct inotify_rm_watch_args *);
+int	sys_kexec_load(struct thread *, struct kexec_load_args *);
 
 #ifdef COMPAT_43
 
@@ -3289,6 +3296,7 @@
 #define	SYS_AUE_exterrctl	AUE_NULL
 #define	SYS_AUE_inotify_add_watch_at	AUE_INOTIFY
 #define	SYS_AUE_inotify_rm_watch	AUE_INOTIFY
+#define	SYS_AUE_kexec_load	AUE_NULL
 
 #undef PAD_
 #undef PADL_