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set_intr_gate(X86_TRAP_PF, page_fault);

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·¢±íÓÚ 2014-12-22 22:41 |Ö»¿´¸Ã×÷Õß
»Ø¸´ 1# littlenewer
  1.         /*
  2.          * It's safe to allow irq's after cr2 has been saved and the
  3.          * vmalloc fault has been handled.
  4.          *
  5.          * User-mode registers count as a user access even for any
  6.          * potential system fault or CPU buglet:
  7.          */
  8.         if (user_mode_vm(regs)) {
  9.                 local_irq_enable();
  10.                 error_code |= PF_USER;
  11.         } else {
  12.                 if (regs->flags & X86_EFLAGS_IF)
  13.                         local_irq_enable();
  14.         }
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