What is Kernel page-table isolation (KPTI)?
An OS countermeasure to Meltdown that removes most kernel memory from the page tables while user programs run.
Field: Hardware Security
Kernel page-table isolation (KPTI) in the explanations
Meltdown read it speculatively before that mark was checked, so KPTI removes kernel pages from the mapping altogether while user code runs.
What is the idea behind KPTI (kernel page-table isolation),…
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Related terms
Meltdown System call Anti-rollback protection Cold boot attack Constant-time implementation Counterfeit chip eFuse Fault injection attack Hardware Trojan Measured boot