print also the start address of the heap

src/mm/mod.rs

@@ -167,7 +167,7 @@ pub fn init() {
 			arch::mm::virtualmem::allocate_aligned(virt_size, LargePageSize::SIZE).unwrap()
 		};
 
-		info!("Heap size: {} MB", virt_size >> 20);
+		info!("Heap: size {} MB, start address 0x{:x}", virt_size >> 20, virt_addr);
 
 		// try to map a huge page
 		let mut counter = if has_1gib_pages && virt_size > HugePageSize::SIZE {