It is possible to correctly do aging without taking the KVM MMU lock, or while taking it for read; add a Kconfig to let architectures do so. Architectures that select KVM_MMU_LOCKLESS_AGING are responsible for correctness. Suggested-by: Yu Zhao <yuzhao@google.com> Signed-off-by: James Houghton <jthoughton@google.com> Reviewed-by: David Matlack <dmatlack@google.com> Link: https://lore.kernel.org/r/20250204004038.1680123-3-jthoughton@google.com [sean: massage shortlog+changelog, fix Kconfig goof and shorten name] Signed-off-by: Sean Christopherson <seanjc@google.com> |
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