From ceac93e3d93eeaf14b2472be26fe354ce4445e7b Mon Sep 17 00:00:00 2001
From: ZIYAN137 <zi_yan137@outlook.com>
Date: Thu, 16 Oct 2025 08:54:23 +0000
Subject: [PATCH 1/2] =?UTF-8?q?chore:=20=E5=88=9B=E5=BB=BA=E5=9F=BA?=
 =?UTF-8?q?=E6=9C=AC=E6=96=87=E4=BB=B6=E7=BB=93=E6=9E=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 os/src/mm/address/.gitkeep          | 0
 os/src/mm/allocation/.gitkeep       | 0
 os/src/mm/global_allocator/.gitkeep | 0
 os/src/mm/pagetable/.gitkeep        | 0
 4 files changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 os/src/mm/address/.gitkeep
 create mode 100644 os/src/mm/allocation/.gitkeep
 create mode 100644 os/src/mm/global_allocator/.gitkeep
 create mode 100644 os/src/mm/pagetable/.gitkeep

diff --git a/os/src/mm/address/.gitkeep b/os/src/mm/address/.gitkeep
new file mode 100644
index 00000000..e69de29b
diff --git a/os/src/mm/allocation/.gitkeep b/os/src/mm/allocation/.gitkeep
new file mode 100644
index 00000000..e69de29b
diff --git a/os/src/mm/global_allocator/.gitkeep b/os/src/mm/global_allocator/.gitkeep
new file mode 100644
index 00000000..e69de29b
diff --git a/os/src/mm/pagetable/.gitkeep b/os/src/mm/pagetable/.gitkeep
new file mode 100644
index 00000000..e69de29b

From 86831625ad508b8c7f3c9faed2cde65e998daf27 Mon Sep 17 00:00:00 2001
From: ZIYAN137 <zi_yan137@outlook.com>
Date: Thu, 16 Oct 2025 09:02:06 +0000
Subject: [PATCH 2/2] =?UTF-8?q?feat(mm):=20=E6=B7=BB=E5=8A=A0mm=E7=9B=B8?=
 =?UTF-8?q?=E5=85=B3=E7=9A=84=E9=85=8D=E7=BD=AE=E5=B8=B8=E9=87=8F?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 os/src/config.rs | 7 +++++++
 os/src/main.rs   | 1 +
 2 files changed, 8 insertions(+)
 create mode 100644 os/src/config.rs

diff --git a/os/src/config.rs b/os/src/config.rs
new file mode 100644
index 00000000..ea43a373
--- /dev/null
+++ b/os/src/config.rs
@@ -0,0 +1,7 @@
+// constants for the operating system
+#![allow(unused)]
+
+// about memory management
+pub const PAGE_SIZE: usize = 4096;
+pub const KERNEL_HEAP_SIZE: usize = 16 * 1024 * 1024; // 16MB
+pub const USER_STACK_SIZE: usize = 4 * 1024 * 1024; // 4MB
\ No newline at end of file
diff --git a/os/src/main.rs b/os/src/main.rs
index 6686807e..e4bcce04 100644
--- a/os/src/main.rs
+++ b/os/src/main.rs
@@ -7,6 +7,7 @@
 #[macro_use]
 mod console;
 mod sbi;
+mod config;
 
 use core::arch::global_asm;
 use core::panic::PanicInfo;