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41 lines
504 B
41 lines
504 B
2 years ago
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/*
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* linux/mm/page.s
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*
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* (C) 1991 Linus Torvalds
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*/
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/*
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* page.s contains the low-level page-exception code.
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* the real work is done in mm.c
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*/
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.globl page_fault
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page_fault:
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xchgl %eax,(%esp)
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pushl %ecx
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pushl %edx
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push %ds
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push %es
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push %fs
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movl $0x10,%edx
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mov %dx,%ds
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mov %dx,%es
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mov %dx,%fs
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movl %cr2,%edx
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pushl %edx
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pushl %eax
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testl $1,%eax
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jne 1f
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call do_no_page
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jmp 2f
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1: call do_wp_page
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2: addl $8,%esp
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pop %fs
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pop %es
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pop %ds
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popl %edx
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popl %ecx
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popl %eax
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iret
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