diff --git a/include/metalsvm/config.h.example b/include/metalsvm/config.h.example
index f5b35948..34a2717a 100644
--- a/include/metalsvm/config.h.example
+++ b/include/metalsvm/config.h.example
@@ -63,11 +63,6 @@ extern "C" {
 #define SHMADD
 #define SHMDBG
 //#define SHMADD_CACHEABLE
-/* default values for 16 GB system */
-#define PRIVATE_MEM1_START      0x00000000
-#define PRIVATE_MEM1_END        0x13FFFFFF
-#define PRIVATE_MEM2_START      0xFF000000
-#define PRIVATE_MEM2_END        0xFFFFFFFF
 #define SCC_BOOTINFO            0x80000
 
 #define BUILTIN_EXPECT(exp, b) 	__builtin_expect((exp), (b))
diff --git a/mm/memory.c b/mm/memory.c
index ad29aedd..efa3d5c6 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -30,6 +30,9 @@
 #include <asm/multiboot.h>
 #endif
 #ifdef CONFIG_ROCKCREEK
+#include <asm/RCCE.h>
+#include <asm/RCCE_lib.h>
+#include <asm/SCC_API.h>
 #include <asm/icc.h>
 #endif
 
@@ -93,6 +96,7 @@ int mmu_init(void)
 	size_t kernel_size;
 	unsigned int i; 
 	size_t addr;
+	int ret;
 
 	// at first, set default value of the bitmap
 	memset(bitmap, 0xFF, sizeof(uint8_t)*BITMAP_SIZE);
@@ -148,15 +152,8 @@ int mmu_init(void)
 		}
 	} 
 #elif defined(CONFIG_ROCKCREEK)
-	for(addr=PRIVATE_MEM1_START; addr<PRIVATE_MEM1_END; addr+=PAGE_SIZE) {
-		page_clear_mark(addr >> PAGE_SHIFT);
-		if (addr > addr + PAGE_SIZE)
-			break;
-		atomic_int32_inc(&total_pages);
-		atomic_int32_inc(&total_available_pages);
-	}
-
-	for(addr=PRIVATE_MEM2_START; addr<PRIVATE_MEM2_END; addr+=PAGE_SIZE) {
+	/* of course, the first slot belongs to the private memory */
+	for(addr=0x00; addr<0x1000000; addr+=PAGE_SIZE) {
 		page_clear_mark(addr >> PAGE_SHIFT);
 		if (addr > addr + PAGE_SIZE)
 			break;
@@ -200,7 +197,39 @@ int mmu_init(void)
 	if ((size_t) &kernel_end & (PAGE_SIZE-1))
 		alloc_start++;
 
-	return paging_init();
+	ret = paging_init();
+
+#ifdef CONFIG_ROCKCREEK
+	/*
+	 * Now, we are able to read the FPGA register and to
+	 * determin the number of slots.
+	 */
+	uint32_t slots = *((volatile uint32_t*) (FPGA_BASE + 0x8244));
+	if (slots == 0)
+		slots = 21;
+
+	kprintf("MetalSVM use %d slots for private memory\n", slots);
+
+	// define all the private slots as free
+	for(addr=0x1000000; addr<(slots-1)*0x1000000; addr+=PAGE_SIZE) {
+		page_clear_mark(addr >> PAGE_SHIFT);
+		if (addr > addr + PAGE_SIZE)
+			break;
+		atomic_int32_inc(&total_pages);
+		atomic_int32_inc(&total_available_pages);
+	}
+
+	// Note: The last slot belongs always to the private memory.
+	for(addr=0xFF000000; addr<0xFFFFFFFF; addr+=PAGE_SIZE) {
+		page_clear_mark(addr >> PAGE_SHIFT);
+		if (addr > addr + PAGE_SIZE)
+			break;
+		atomic_int32_inc(&total_pages);
+		atomic_int32_inc(&total_available_pages);
+	}
+#endif
+
+	return ret;
 }
 
 /*