From d9fb718b861e0d5a84a41c08a7ef0751136f3af0 Mon Sep 17 00:00:00 2001
From: Asya <asya@waifu.club>
Date: Sat, 11 Feb 2023 11:22:46 +0300
Subject: [PATCH] Zeroed page allocation

---
 kernel/src/memory.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/kernel/src/memory.rs b/kernel/src/memory.rs
index f5903f7f..265f2be1 100644
--- a/kernel/src/memory.rs
+++ b/kernel/src/memory.rs
@@ -20,6 +20,14 @@ impl MemoryManager {
         self.get_free_pages(order).map(|addr| addr as *mut u8)
     }
 
+    pub fn zallocate_pages(&mut self, order: usize) -> Option<*mut u8> {
+        let ptr = self.allocate_pages(order)?;
+        unsafe {
+            ptr.write_bytes(0, PAGE_SIZE << order);
+        }
+        Some(ptr)
+    }
+
     /// # Safety
     /// This method assumes that `address` is in range of this allocator
     pub unsafe fn deallocate_pages(&mut self, address: *mut u8, order: usize) {