Large pages not being created properly may result in increased memory access time. The 'lpages' kvm stat used to keep track of the current number of large pages in the system, but with TDP MMU enabled the stat is not showing the correct number. This patch extends the lpages counter to cover the TDP case. Signed-off-by: Md Shahadat Hossain Shahin <shahinmd@xxxxxxxxx> Cc: Bartosz Szczepanek <bsz@xxxxxxxxx> --- arch/x86/kvm/mmu/tdp_mmu.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c index 34207b874886..1e2a3cb33568 100644 --- a/arch/x86/kvm/mmu/tdp_mmu.c +++ b/arch/x86/kvm/mmu/tdp_mmu.c @@ -425,6 +425,12 @@ static void __handle_changed_spte(struct kvm *kvm, int as_id, gfn_t gfn, if (old_spte == new_spte) return; + + if (is_large_pte(old_spte)) + --kvm->stat.lpages; + + if (is_large_pte(new_spte)) + ++kvm->stat.lpages; trace_kvm_tdp_mmu_spte_changed(as_id, gfn, level, old_spte, new_spte); -- 2.17.1 Amazon Development Center Germany GmbH Krausenstr. 38 10117 Berlin Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B Sitz: Berlin Ust-ID: DE 289 237 879
