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dd9d15f294
the kernel's direct map instead of the pmap's recursive mapping to access the lowest level in the page table. The direct map is preferable for two reasons: (1) The TLB is more likely to hold the required direct mapping because pmap_enter() has already used the direct map to access a nearby PTE and (2) loading a direct mapping into the TLB involves walking only 2 or 3 levels of the page table instead of 4. |
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include | ||
isa | ||
linux32 | ||
pci | ||
Makefile |