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Set RPL=3 for user selectors.
[pintos-anon]
/
src
/
threads
/
paging.c
diff --git
a/src/threads/paging.c
b/src/threads/paging.c
index 9fd568caf894107e02b09edda8dff05d9d060d9e..2fa549cd9424c73a0abc133b506aabf0cc13fe20 100644
(file)
--- a/
src/threads/paging.c
+++ b/
src/threads/paging.c
@@
-77,8
+77,7
@@
paging_init (void)
pt[pte_idx] = make_pte (vaddr, true);
}
pt[pte_idx] = make_pte (vaddr, true);
}
- /* Set the page table. */
- asm volatile ("movl %0,%%cr3" :: "r" (vtop (pd)));
+ pagedir_activate (pd);
}
uint32_t *
}
uint32_t *
@@
-225,4
+224,8
@@
pagedir_next (uint32_t *pd, void **upage)
return kpage;
}
return kpage;
}
-void pagedir_activate (uint32_t *pagedir);
+void
+pagedir_activate (uint32_t *pagedir)
+{
+ asm volatile ("movl %0,%%cr3" :: "r" (vtop (pagedir)));
+}