diff --git a/lib/syslib/Makefile.in b/lib/syslib/Makefile.in
index c8882352f..3fc7305e3 100644
--- a/lib/syslib/Makefile.in
+++ b/lib/syslib/Makefile.in
@@ -66,7 +66,6 @@ libsys_FILES=" \
 	sys_vinl.c \
 	sys_vinw.c \
 	sys_vircopy.c \
-	sys_vm_setbuf.c \
 	sys_vmctl.c \
 	sys_voutb.c \
 	sys_voutl.c \
@@ -76,8 +75,10 @@ libsys_FILES=" \
 	ds.c	\
 	vm_allocmem.c \
 	vm_brk.c \
+	vm_ctl.c \
 	vm_exec_newmem.c \
 	vm_exit.c \
+	vm_notify_sig.c \
 	vm_fork.c \
 	vm_map_phys.c \
 	vm_umap.c \
diff --git a/lib/syslib/alloc_util.c b/lib/syslib/alloc_util.c
index a2a5bd761..52d7792e5 100644
--- a/lib/syslib/alloc_util.c
+++ b/lib/syslib/alloc_util.c
@@ -29,6 +29,8 @@ void *alloc_contig(size_t len, int flags, phys_bytes *phys)
 
 	if(flags & AC_LOWER16M)
 		mmapflags |= MAP_LOWER16M;
+	if(flags & AC_LOWER1M)
+		mmapflags |= MAP_LOWER1M;
 	if(flags & AC_ALIGN64K)
 		mmapflags |= MAP_ALIGN64K;
 
diff --git a/lib/syslib/sys_fork.c b/lib/syslib/sys_fork.c
index 8aef1b8ca..1aa4c9034 100755
--- a/lib/syslib/sys_fork.c
+++ b/lib/syslib/sys_fork.c
@@ -1,11 +1,12 @@
 #include "syslib.h"
 
-PUBLIC int sys_fork(parent, child, child_endpoint, map_ptr, flags)
+PUBLIC int sys_fork(parent, child, child_endpoint, map_ptr, flags, msgaddr)
 endpoint_t parent;		/* process doing the fork */
 endpoint_t child;		/* which proc has been created by the fork */
 int *child_endpoint;
 struct mem_map *map_ptr;
 u32_t flags;
+vir_bytes *msgaddr;
 {
 /* A process has forked.  Tell the kernel. */
 
@@ -18,5 +19,6 @@ u32_t flags;
   m.PR_FORK_FLAGS = flags;
   r = _taskcall(SYSTASK, SYS_FORK, &m);
   *child_endpoint = m.PR_ENDPT;
+  *msgaddr = m.PR_FORK_MSGADDR;
   return r;
 }
diff --git a/lib/syslib/sys_vm_setbuf.c b/lib/syslib/sys_vm_setbuf.c
deleted file mode 100644
index ade00cc62..000000000
--- a/lib/syslib/sys_vm_setbuf.c
+++ /dev/null
@@ -1,21 +0,0 @@
-#include "syslib.h"
-
-/*===========================================================================*
- *                                sys_vm_setbuf				     *
- *===========================================================================*/
-PUBLIC int sys_vm_setbuf(base, size, high)
-phys_bytes base;
-phys_bytes size;
-phys_bytes high;
-{
-    message m;
-    int result;
-
-    m.m4_l1= base;
-    m.m4_l2= size;
-    m.m4_l3= high;
-
-    result = _taskcall(SYSTASK, SYS_VM_SETBUF, &m);
-    return(result);
-}
-
diff --git a/lib/syslib/sys_vmctl.c b/lib/syslib/sys_vmctl.c
index a98d76574..29f27e243 100755
--- a/lib/syslib/sys_vmctl.c
+++ b/lib/syslib/sys_vmctl.c
@@ -43,7 +43,7 @@ PUBLIC int sys_vmctl_get_cr3_i386(endpoint_t who, u32_t *cr3)
 }
 
 PUBLIC int sys_vmctl_get_memreq(endpoint_t *who, vir_bytes *mem,
-	vir_bytes *len, int *wrflag)
+	vir_bytes *len, int *wrflag, endpoint_t *requestor)
 {
   message m;
   int r;
@@ -56,7 +56,16 @@ PUBLIC int sys_vmctl_get_memreq(endpoint_t *who, vir_bytes *mem,
 	*mem = (vir_bytes) m.SVMCTL_MRG_ADDR;
 	*len = m.SVMCTL_MRG_LEN;
 	*wrflag = m.SVMCTL_MRG_WRITE;
+	*requestor = (endpoint_t) m.SVMCTL_MRG_REQUESTOR;
   }
   return r;
 }
 
+PUBLIC int sys_vmctl_enable_paging(struct mem_map *map)
+{
+	message m;
+	m.SVMCTL_WHO = SELF;
+	m.SVMCTL_PARAM = VMCTL_ENABLE_PAGING;
+	m.SVMCTL_VALUE = (int) map;
+	return _taskcall(SYSTASK, SYS_VMCTL, &m);
+}
diff --git a/lib/syslib/vm_ctl.c b/lib/syslib/vm_ctl.c
new file mode 100644
index 000000000..545d5cce5
--- /dev/null
+++ b/lib/syslib/vm_ctl.c
@@ -0,0 +1,18 @@
+
+#include "syslib.h"
+
+#include <minix/vm.h>
+
+/*===========================================================================*
+ *                                vm_umap				     *
+ *===========================================================================*/
+PUBLIC int vm_ctl(int what, int param)
+{
+    message m;
+    int result;
+
+    m.VCTL_WHAT = what;
+    m.VCTL_PARAM = param;
+    return _taskcall(VM_PROC_NR, VM_CTL, &m);
+}
+
diff --git a/lib/syslib/vm_notify_sig.c b/lib/syslib/vm_notify_sig.c
new file mode 100644
index 000000000..3325d6bb7
--- /dev/null
+++ b/lib/syslib/vm_notify_sig.c
@@ -0,0 +1,20 @@
+
+#include "syslib.h"
+
+#include <minix/vm.h>
+
+/*===========================================================================*
+ *                                vm_notify_sig				     *
+ *===========================================================================*/
+PUBLIC int vm_notify_sig(endpoint_t ep, endpoint_t ipc_ep)
+{
+    message m;
+    int result;
+
+    m.VM_NOTIFY_SIG_ENDPOINT = ep;
+    m.VM_NOTIFY_SIG_IPC = ipc_ep;
+
+    result = _taskcall(VM_PROC_NR, VM_NOTIFY_SIG, &m);
+    return(result);
+}
+