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![]() This change implements lockless access tracking for Intel CPUs without EPT A bits. This is achieved by marking the PTEs as not-present (but not completely clearing them) when clear_flush_young() is called after marking the pages as accessed. When an EPT Violation is generated as a result of the VM accessing those pages, the PTEs are restored to their original values. Signed-off-by: Junaid Shahid <junaids@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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asm | ||
uapi/asm |