use just implemented basic memory section allocation for processes

1 files changed, 8 insertions, 0 deletions

diff --git a/setup.c b/setup.c
index 0fd3522..b7acf60 100644
--- a/setup.c
+++ b/setup.c
@@ -74,6 +74,12 @@ void setup(uint32_t r0, uint32_t machine_type,
       puts("Couldn't determine available memory - assuming 192MB");
       memory_size = 192 * POWER_OF_2(20);
     }
+
+  if (memory_size < UNPRIVILEGED_MEMORY_END)
+    {
+      puts("Not enough memory to continue");
+      while (1);
+    }
   
   // prints some info
   demo_paging_support();
@@ -81,6 +87,8 @@ void setup(uint32_t r0, uint32_t machine_type,
   // prints some info
   demo_current_mode();
 
+  setup_pager_structures(memory_size);
+  
   // prints some info and sets upp translation table, turns on MMU
   setup_flat_map();