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Working with the CPU
Translating section references
Figure 31 shows the complete section translation sequence.
Figure 31: Section translation
Second-level descriptor
The base address of the page table to be used is determined by the descriptor
returned (if any) from a first-level fetch — either a coarse page table descriptor or a
fine page table descriptor. The page table is then accessed and a second-level
descriptor returned.
31 14 13 0
Translation base
1
Translation table base
31 14 13 0
Translation base
2
Table index 0 0
31 2019 0
Table index Section index
Section first-level descriptor
31 20 19 0
Section base address
2
01
1345
SBZ DomainAP 1 C B0
31 20 19 0
Section base address
Physical address
Section index
8