mm: virtual_mm: No need to check l_table_index

Since each directory can have only 1024 entries, we don't need to check
l_table_index or create any new tables.

4 files changed, 2 insertions, 26 deletions

diff --git a/kernel/kernel/kernel.cc b/kernel/kernel/kernel.cc
index 9143bec..a4670a9 100644
--- a/kernel/kernel/kernel.cc
+++ b/kernel/kernel/kernel.cc
@@ -44,25 +44,6 @@ kernel_main(uint32_t magic, multiboot_info_t *multiboot_info)
   MemoryMap::load(multiboot_info);
   PhysicalMM::initialize();
   VirtualMM::initialize();
-  PageTableAllocator::prepare();
-
-  // uint32_t *page = (uint32_t *) VirtualMM::alloc_pages(1);
-  // printk("debug", "page(0x%x)", page);
-
-  int *x = (int *) LibAlloc::kmalloc(14 * MiB);
-  for (uint32_t i = 0; i < 8192; i++)
-    x[i] = i;
-  printk("debug", "x(0x%x) *x(0x%x)", x, x[12]);
-
-  int *y = (int *) LibAlloc::kmalloc(sizeof(int) * 8192);
-  for (uint32_t i = 0; i < 8192; i++)
-    y[i] = i;
-  printk("debug", "x(0x%x) *x(0x%x)", y, y[12]);
-
-  int *z = (int *) LibAlloc::kmalloc(sizeof(int) * 8192);
-  for (uint32_t i = 0; i < 8192; i++)
-    z[i] = i;
-  printk("debug", "x(0x%x) *x(0x%x)", z, z[12]);
 
   printk("\nKernel", "Started.");
 
diff --git a/kernel/mm/virtual_mm/page_table_allocator.cc b/kernel/mm/virtual_mm/page_table_allocator.cc
index 3ec4896..6a2a07e 100644
--- a/kernel/mm/virtual_mm/page_table_allocator.cc
+++ b/kernel/mm/virtual_mm/page_table_allocator.cc
@@ -56,11 +56,6 @@ prepare(void)
   /* Initial table */
   if (l_heap == NULL)
     make_table((uint32_t *) (7 * MiB));
-
-  /* If we're gonna run out of space, allocate a new table with the remaining
-   * page */
-  if (l_table_index == 1023)
-    make_table(allocate());
 }
 
 uint32_t *
diff --git a/kernel/mm/virtual_mm/pages.cc b/kernel/mm/virtual_mm/pages.cc
index 7778418..3eb403c 100644
--- a/kernel/mm/virtual_mm/pages.cc
+++ b/kernel/mm/virtual_mm/pages.cc
@@ -30,8 +30,6 @@ namespace VirtualMM
 void *
 alloc_pages(uint32_t n_pages)
 {
-  PageTableAllocator::prepare();
-
   uint32_t starting_address = (uint32_t) find_free_addresses(n_pages);
   if (!starting_address)
     return NULL;
diff --git a/kernel/mm/virtual_mm/virtual_mm.cc b/kernel/mm/virtual_mm/virtual_mm.cc
index fc6bec6..2055481 100644
--- a/kernel/mm/virtual_mm/virtual_mm.cc
+++ b/kernel/mm/virtual_mm/virtual_mm.cc
@@ -105,6 +105,8 @@ initialize(void)
 
   switch_page_directory(l_page_directory);
   enable_paging();
+
+  PageTableAllocator::prepare();
 }
 
 uint32_t *