1 files changed, 40 insertions, 0 deletions

diff --git a/src/mm/page.s b/src/mm/page.s
new file mode 100644
index 0000000..9ebf3f7
--- /dev/null
+++ b/src/mm/page.s
@@ -0,0 +1,40 @@
+/*
+ *  linux/mm/page.s
+ *
+ *  (C) 1991  Linus Torvalds
+ */
+
+/*
+ * page.s contains the low-level page-exception code.
+ * the real work is done in mm.c
+ */
+
+.globl page_fault
+
+page_fault:
+        xchgl %eax,(%esp)
+        pushl %ecx
+        pushl %edx
+        push %ds
+        push %es
+        push %fs
+        movl $0x10,%edx
+        mov %dx,%ds
+        mov %dx,%es
+        mov %dx,%fs
+        movl %cr2,%edx
+        pushl %edx
+        pushl %eax
+        testl $1,%eax
+        jne 1f
+        call do_no_page
+        jmp 2f
+1:      call do_wp_page
+2:      addl $8,%esp
+        pop %fs
+        pop %es
+        pop %ds
+        popl %edx
+        popl %ecx
+        popl %eax
+        iret