Multi core environment drivers

Does ev开发者_如何学Cery core has same IDTR,GDTR and LDTR values? (I think they can be different.) Are cores synched up for privilege instructions?

I will try to answer your first question: Each core has its own IDTR, GDTR and LDTR register, but they may or may not be the same value. In the case of my multicore kernel, every core has the same memory space, therefore, I am using the same values for all the cores. However, I am not sure if it is same in other kernels.