I knew that MSR registers (for example, IA32_CLOCK_MODULATION and IA32_THERM_STATUS) can be set and get throughRDMSR and WRMSR instruction. However, I would like to know how to set and get for 'each core' of dual core processor. Can anyone kindly tell me?
Besides, how to enter privilege level 0 by some instruction?
P.S.I am using QNX operating system, only assembly instruction can be used.