1 files changed, 38 insertions, 0 deletions
diff --git a/kernel/vmem.c b/kernel/vmem.c
index c22f764..f9d6050 100644
--- a/kernel/vmem.c
+++ b/kernel/vmem.c
@@ -256,6 +256,44 @@ void vmem_init()
 
     }
 
+    // programm space starts at 0x8048000 and let us reserve 4mb per programm!
+    // lets start to build the directory for one single programm
+//    uint32_t phys_addr=0;
+
+    virt_addr=0x8048000;
+    for(int j=0;j<5;j++)
+    {
+
+	ptable* table = (ptable*) pmmngr_alloc_block ();
+	if (!table)panic(FOOLOS_MODULE_NAME,"unable to alloc table");
+    
+	for (int i=0, virt=virt_addr; i<1024; i++, virt+=4096) 
+	{
+	    phys_addr=pmmngr_alloc_block(); // get free space from the memory manager
+	    if (!phys_addr)panic(FOOLOS_MODULE_NAME,"unable to alloc spce for frame");
+
+	    int frame=phys_addr;
+
+
+	    //! create a new page
+	    pt_entry page=0;
+	    pt_entry_add_attrib (&page, I86_PTE_PRESENT);
+	    pt_entry_add_attrib (&page, I86_PTE_WRITABLE);
+	    pt_entry_set_frame (&page, frame);
+
+	    //! ...and add it to the page table
+	    table->m_entries [PAGE_TABLE_INDEX (virt) ] = page;
+	}
+	
+	pd_entry* entry = &dir->m_entries [PAGE_DIRECTORY_INDEX (virt_addr) ];
+	*entry=0;
+	pd_entry_add_attrib (entry, I86_PDE_PRESENT);
+	pd_entry_add_attrib (entry, I86_PDE_WRITABLE);
+	pd_entry_set_frame (entry, (physical_addr)table);
+
+	virt_addr+=1024*4096;
+
+    }
 
     x86_set_pdbr(dir);