Are x86-64 CPU registers shared among multiple cores? [duplicate]

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I'm trying to read the Intel documentation on the CPU registers, and the question came up that I can't seem to find an answer to.

Say, all of the available registers:

• GPR (general purpose registers)
• Control Registers: RIP, EFLAGS, CR0-CR15, EFER, MSRs, etc.
• GDTR, IDTR, TR, etc.

Are they all shared among multiple CPU cores, or are there copies of them specific for each core?

来源：https://stackoverflow.com/questions/51494024/are-x86-64-cpu-registers-shared-among-multiple-cores