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When a JUMP instruction references a Task State Segment(TSS) descriptor, then DPL must be

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in Microprocessor by (39.4k points)
When a JUMP instruction references a Task State Segment(TSS) descriptor, then DPL must be

(a) equally privileged as CPL

(b) greater or equally privileged than CPL

(c) less or equally privileged than CPL

(d) less privileged than CPL

The question was posed to me in semester exam.

My question is from Privilege topic in chapter 80286-80287-A Microprocessor with Memory Management and Protection of Microprocessor

1 Answer

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by (49.2k points)
Correct choice is (c) less or equally privileged than CPL

The best I can explain: When a CALL or JUMP instruction references a Task State Segment(TSS) descriptor, then DPL must be less or equally privileged than CPL.

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