diff --git a/include/minix/com.h b/include/minix/com.h
index 7728d336e..479cedd25 100755
--- a/include/minix/com.h
+++ b/include/minix/com.h
@@ -216,8 +216,11 @@
 #  define SYS_TIMES	 (KERNEL_CALL + 25)	/* sys_times() */
 #  define SYS_GETINFO    (KERNEL_CALL + 26) 	/* sys_getinfo() */
 #  define SYS_ABORT      (KERNEL_CALL + 27)	/* sys_abort() */
+#  define SYS_IOPENABLE  (KERNEL_CALL + 28)	/* sys_enable_iop() */
+#  define SYS_VM_SETBUF  (KERNEL_CALL + 29)	/* sys_vm_setbuf() */
+#  define SYS_VM_MAP  	 (KERNEL_CALL + 30)	/* sys_vm_map() */
 
-#define NR_SYS_CALLS	28	/* number of system calls */ 
+#define NR_SYS_CALLS	31	/* number of system calls */ 
 
 /* Field names for SYS_MEMSET, SYS_SEGCTL. */
 #define MEM_PTR		m2_p1	/* base */
@@ -408,5 +411,8 @@
 #  define DIAG_PRINT_BUF      m1_p1
 #  define DIAG_BUF_COUNT      m1_i1
 #  define DIAG_PROC_NR        m1_i2
+#define GET_KMESS	101	/* get kmess from TTY */
+#  define GETKM_PTR	      m1_p1
+
 
 #endif /* _MINIX_COM_H */ 
diff --git a/include/minix/const.h b/include/minix/const.h
index ef901a093..3814621a3 100755
--- a/include/minix/const.h
+++ b/include/minix/const.h
@@ -72,8 +72,8 @@
 
 /* Memory is allocated in clicks. */
 #if (CHIP == INTEL)
-#define CLICK_SIZE      1024	/* unit in which memory is allocated */
-#define CLICK_SHIFT       10	/* log2 of CLICK_SIZE */
+#define CLICK_SIZE      4096	/* unit in which memory is allocated */
+#define CLICK_SHIFT       12	/* log2 of CLICK_SIZE */
 #endif
 
 #if (CHIP == SPARC) || (CHIP == M68000)
diff --git a/include/minix/sys_config.h b/include/minix/sys_config.h
index 7a86e076f..59a2115a9 100755
--- a/include/minix/sys_config.h
+++ b/include/minix/sys_config.h
@@ -18,7 +18,7 @@
 #define _PTR_SIZE	_EM_WSIZE
 #endif
 
-#define _NR_PROCS	64
+#define _NR_PROCS	100
 #define _NR_SYS_PROCS	32
 
 /* Set the CHIP type based on the machine selected. The symbol CHIP is actually
diff --git a/include/minix/syslib.h b/include/minix/syslib.h
index 8e21763f7..ea4ad9ba3 100755
--- a/include/minix/syslib.h
+++ b/include/minix/syslib.h
@@ -26,6 +26,7 @@ struct reg86u;
 _PROTOTYPE( int _taskcall, (int who, int syscallnr, message *msgptr));
 
 _PROTOTYPE( int sys_abort, (int how, ...));
+_PROTOTYPE( int sys_enable_iop, (int proc));
 _PROTOTYPE( int sys_exec, (int proc, char *ptr,  
 				char *aout, vir_bytes initpc));
 _PROTOTYPE( int sys_fork, (int parent, int child));
@@ -37,6 +38,10 @@ _PROTOTYPE( int sys_svrctl, (int proc, int req, int priv,vir_bytes argp));
 _PROTOTYPE( int sys_nice, (int proc, int priority));
 
 _PROTOTYPE( int sys_int86, (struct reg86u *reg86p));
+_PROTOTYPE( int sys_vm_setbuf, (phys_bytes base, phys_bytes size,
+							phys_bytes high));
+_PROTOTYPE( int sys_vm_map, (int proc_nr, int do_map,
+	phys_bytes base, phys_bytes size, phys_bytes offset));
 
 /* Shorthands for sys_sdevio() system call. */
 #define sys_insb(port, proc_nr, buffer, count) \
diff --git a/include/sys/ioc_memory.h b/include/sys/ioc_memory.h
index f025a55bb..d7f5fd4da 100755
--- a/include/sys/ioc_memory.h
+++ b/include/sys/ioc_memory.h
@@ -10,5 +10,7 @@
 #include <minix/ioctl.h>
 
 #define MIOCRAMSIZE	_IOW('m', 3, u32_t)
+#define MIOCMAP		_IOR('m', 4, struct mapreq)
+#define MIOCUNMAP	_IOR('m', 5, struct mapreq)
 
 #endif /* _S_I_MEMORY_H */
diff --git a/include/sys/vm.h b/include/sys/vm.h
new file mode 100644
index 000000000..555a76380
--- /dev/null
+++ b/include/sys/vm.h
@@ -0,0 +1,28 @@
+/*
+sys/vm.h
+*/
+
+#define PAGE_SIZE	4096
+
+/* MIOCMAP */
+struct mapreq
+{
+	void *base;
+	size_t size;
+	off_t offset;
+	int readonly;
+};
+
+/* i386 paging constants */
+#define I386_VM_PRESENT	0x001	/* Page is present */
+#define I386_VM_WRITE	0x002	/* Read/write access allowed */
+#define I386_VM_USER	0x004	/* User access allowed */
+#define I386_VM_ADDR_MASK 0xFFFFF000 /* physical address */
+
+#define I386_VM_PT_ENT_SIZE	4	/* Size of a page table entry */
+#define I386_VM_DIR_ENTRIES	1024	/* Number of entries in a page dir */
+#define I386_VM_DIR_ENT_SHIFT	22	/* Shift to get entry in page dir. */
+#define I386_VM_PT_ENT_SHIFT	12	/* Shift to get entry in page table */
+#define I386_VM_PT_ENT_MASK	0x3FF	/* Mask to get entry in page table */
+
+#define I386_CR0_PG		0x80000000	/* Enable paging */