refactor: restructure the user space stuff.

[lunaix-os.git] / lunaix-os / includes / lunaix / mm / page.h

diff --git a/lunaix-os/includes/lunaix/mm/page.h b/lunaix-os/includes/lunaix/mm/page.h
index 9330274f2cf144e85e90d3e06666d0024a9ee299..099bf13094fe982a5f47bdb0f412aca2bb1a09ae 100644 (file)
--- a/lunaix-os/includes/lunaix/mm/page.h
+++ b/lunaix-os/includes/lunaix/mm/page.h
@@ -13,6 +13,7 @@
 #define V2P(vaddr) ((ptr_t)(vaddr)-KERNEL_MM_BASE)
 
 #define PG_ALIGN(addr) ((ptr_t)(addr)&0xFFFFF000UL)
+#define PG_MOD(addr) ((ptr_t)(addr) & ~PG_SIZE)
 #define PG_ALIGNED(addr) (!((ptr_t)(addr)&0x00000FFFUL))
 
 #define L1_INDEX(vaddr) (u32_t)(((ptr_t)(vaddr)&0xFFC00000UL) >> 22)
@@ -85,7 +86,7 @@ typedef struct
     // 物理页地址（如果不存在映射，则为0）
     ptr_t pa;
     // 映射的flags
-    uint16_t flags;
+    u16_t flags;
     // PTE地址
     x86_pte_t* pte;
 } v_mapping;
@@ -93,7 +94,7 @@ typedef struct
 typedef struct
 {
     x86_pte_t entry[PG_MAX_ENTRIES];
-} __attribute__((packed)) x86_page_table;
+} __attribute__((packed, aligned(4))) x86_page_table;
 
 extern void __pg_mount_point;
 
@@ -106,6 +107,9 @@ extern void __pg_mount_point;
 #define PG_MOUNT_3 (PG_MOUNT_BASE + 0x2000)
 #define PG_MOUNT_4 (PG_MOUNT_BASE + 0x3000)
 
+/*
+    当前进程内存空间挂载点
+*/
 #define VMS_SELF L2_BASE_VADDR
 
 #define CURPROC_PTE(vpn)                                                       \