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-rw-r--r--arch/x86/kvm/mmu.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 3e893cd90389..417f36b7c0e4 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -283,8 +283,13 @@ static bool set_mmio_spte(struct kvm *kvm, u64 *sptep, gfn_t gfn,
static bool check_mmio_spte(struct kvm *kvm, u64 spte)
{
- return likely(get_mmio_spte_generation(spte) ==
- kvm_current_mmio_generation(kvm));
+ unsigned int kvm_gen, spte_gen;
+
+ kvm_gen = kvm_current_mmio_generation(kvm);
+ spte_gen = get_mmio_spte_generation(spte);
+
+ trace_check_mmio_spte(spte, kvm_gen, spte_gen);
+ return likely(kvm_gen == spte_gen);
}
static inline u64 rsvd_bits(int s, int e)