Chapter 11. Mechanics of a Task Switch
The Previous Chapter
This chapter provided a detailed description of the Task State Segment (TSS), the TSS segment descriptor, task creation, how the OS starts a task and what happens when a task starts.
This Chapter
This chapter provides a detailed description of how the processor handles automatic task switching. It also covers Linked Tasks, Linkage Modification, the Busy Bit, and address mapping issues.
The Next Chapter
This chapter provides a complete description of 386-style demand mode paging. This discussion is also directly applicable to all subsequent IA processors. Table 12-5 on page 244 provides linkage to all of the paging-related enhancements that appeared in subsequent IA32 processors.
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