SAVE_AND_SWITCH_TO_KERNEL_CR3  250 arch/x86/entry/calling.h .macro SAVE_AND_SWITCH_TO_KERNEL_CR3 scratch_reg:req save_reg:req
SAVE_AND_SWITCH_TO_KERNEL_CR3  312 arch/x86/entry/calling.h .macro SAVE_AND_SWITCH_TO_KERNEL_CR3 scratch_reg:req save_reg:req