KVM: x86/mmu: Revert "Revert "KVM: MMU: add tracepoint for kvm_mmu_invalidate_all_pages"" (14a3c4f4) · Commits · 戴 / test

Now that the fast invalidate mechanism has been reintroduced, restore the tracepoint associated with said mechanism. Note, the name of the tracepoint deviates from the original tracepoint so as to match KVM's current nomenclature. This reverts commit . Signed-off-by:

Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by:

Paolo Bonzini <pbonzini@redhat.com>

arch/x86/kvm/mmu.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -5743,6 +5743,7 @@ restart:
		static void kvm_mmu_zap_all_fast(struct kvm *kvm)
		{
		spin_lock(&kvm->mmu_lock);
		trace_kvm_mmu_zap_all_fast(kvm);
		kvm->arch.mmu_valid_gen++;

		kvm_zap_obsolete_pages(kvm);

arch/x86/kvm/mmutrace.h

+21 −0

Original line number	Diff line number	Diff line
		@@ -282,6 +282,27 @@ TRACE_EVENT(
		)
		);

		TRACE_EVENT(
		kvm_mmu_zap_all_fast,
		TP_PROTO(struct kvm *kvm),
		TP_ARGS(kvm),

		TP_STRUCT__entry(
		__field(unsigned long, mmu_valid_gen)
		__field(unsigned int, mmu_used_pages)
		),

		TP_fast_assign(
		__entry->mmu_valid_gen = kvm->arch.mmu_valid_gen;
		__entry->mmu_used_pages = kvm->arch.n_used_mmu_pages;
		),

		TP_printk("kvm-mmu-valid-gen %lx used_pages %x",
		__entry->mmu_valid_gen, __entry->mmu_used_pages
		)
		);


		TRACE_EVENT(
		check_mmio_spte,
		TP_PROTO(u64 spte, unsigned int kvm_gen, unsigned int spte_gen),

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