feat: add signal handling support (not tested!)

[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 5755a46e2e8c473557d801b59267a2faf734582b..35a1b471e96b37f48c360c93fcddfc7ecdbfe465 100644 (file)
--- a/lunaix-os/includes/lunaix/mm/page.h
+++ b/lunaix-os/includes/lunaix/mm/page.h
@@ -33,18 +33,18 @@
 #define PG_PRESENT              (0x1)
 #define PG_WRITE                (0x1 << 1)
 #define PG_ALLOW_USER           (0x1 << 2)
 #define PG_PRESENT              (0x1)
 #define PG_WRITE                (0x1 << 1)
 #define PG_ALLOW_USER           (0x1 << 2)

-#define PG_WRITE_THROUGHT       (1 << 3)
+#define PG_WRITE_THROUGH       (1 << 3)

 #define PG_DISABLE_CACHE        (1 << 4)
 #define PG_PDE_4MB              (1 << 7)
 
 #define PG_DISABLE_CACHE        (1 << 4)
 #define PG_PDE_4MB              (1 << 7)
 

-#define NEW_L1_ENTRY(flags, pt_addr)     (PG_ALIGN(pt_addr) | ((flags) & 0xfff))
+#define NEW_L1_ENTRY(flags, pt_addr)     (PG_ALIGN(pt_addr) | (((flags) | PG_WRITE_THROUGH) & 0xfff))

 #define NEW_L2_ENTRY(flags, pg_addr)     (PG_ALIGN(pg_addr) | ((flags) & 0xfff))
 
 #define V_ADDR(pd, pt, offset)  ((pd) << 22 | (pt) << 12 | (offset))
 #define P_ADDR(ppn, offset)     ((ppn << 12) | (offset))
 
 #define NEW_L2_ENTRY(flags, pg_addr)     (PG_ALIGN(pg_addr) | ((flags) & 0xfff))
 
 #define V_ADDR(pd, pt, offset)  ((pd) << 22 | (pt) << 12 | (offset))
 #define P_ADDR(ppn, offset)     ((ppn << 12) | (offset))
 

-#define PG_ENTRY_FLAGS(entry)   (entry & 0xFFFU)
-#define PG_ENTRY_ADDR(entry)   (entry & ~0xFFFU)
+#define PG_ENTRY_FLAGS(entry)   ((entry) & 0xFFFU)
+#define PG_ENTRY_ADDR(entry)   ((entry) & ~0xFFFU)

 
 #define HAS_FLAGS(entry, flags)             ((PG_ENTRY_FLAGS(entry) & (flags)) == flags)
 #define CONTAINS_FLAGS(entry, flags)        (PG_ENTRY_FLAGS(entry) & (flags))
 
 #define HAS_FLAGS(entry, flags)             ((PG_ENTRY_FLAGS(entry) & (flags)) == flags)
 #define CONTAINS_FLAGS(entry, flags)        (PG_ENTRY_FLAGS(entry) & (flags))


@@ -55,7 +55,7 @@
 #define PG_PREM_URW            PG_PRESENT | PG_WRITE | PG_ALLOW_USER
 
 // 用于对PD进行循环映射，因为我们可能需要对PD进行频繁操作，我们在这里禁用TLB缓存
 #define PG_PREM_URW            PG_PRESENT | PG_WRITE | PG_ALLOW_USER
 
 // 用于对PD进行循环映射，因为我们可能需要对PD进行频繁操作，我们在这里禁用TLB缓存

-#define T_SELF_REF_PERM        PG_PREM_RW | PG_DISABLE_CACHE
+#define T_SELF_REF_PERM        PG_PREM_RW | PG_DISABLE_CACHE | PG_WRITE_THROUGH

 
 
 // 页目录的虚拟基地址，可以用来访问到各个PDE
 
 
 // 页目录的虚拟基地址，可以用来访问到各个PDE


@@ -107,5 +107,6 @@ extern void __pg_mount_point;
 #define PD_REFERENCED       L2_BASE_VADDR
 
 #define CURPROC_PTE(vpn)     (&((x86_page_table*)(PD_MOUNT_1 | (((vpn) & 0xffc00) << 2)))->entry[(vpn) & 0x3ff])
 #define PD_REFERENCED       L2_BASE_VADDR
 
 #define CURPROC_PTE(vpn)     (&((x86_page_table*)(PD_MOUNT_1 | (((vpn) & 0xffc00) << 2)))->entry[(vpn) & 0x3ff])

+#define PTE_MOUNTED(mnt, vpn)     (((x86_page_table*)((mnt) | (((vpn) & 0xffc00) << 2)))->entry[(vpn) & 0x3ff])

 
 #endif /* __LUNAIX_PAGE_H */
 
 #endif /* __LUNAIX_PAGE_H */