search for: efault_fix

...achieve that I did following: After emulating an instruction inside Xen and before sending the control back to guest OS, I set the EFLAGS''s trap bit set by doing following operation: regs->eflag |= X86_EFLAGS_TF And return the control from sh_page_fault function by saying "return EFAULT_FIXED". My understanding is that with this flag set when guest completes the execution of the next instruction, it traps to Xen with exit reason TRAP_debug and do_debug handler should be invoked inside x86/traps.c. From there, again I set X86_EFLAGS_TF flag to get guest trapped for next instructi...