diff options
| -rw-r--r-- | arch/x86/kvm/mmu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index f385a4cf4bfd..0d094da49541 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -4387,8 +4387,10 @@ void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm) * The max value is MMIO_MAX_GEN - 1 since it is not called * when mark memslot invalid. */ - if (unlikely(kvm_current_mmio_generation(kvm) >= (MMIO_MAX_GEN - 1))) + if (unlikely(kvm_current_mmio_generation(kvm) >= (MMIO_MAX_GEN - 1))) { + printk_ratelimited(KERN_INFO "kvm: zapping shadow pages for mmio generation wraparound\n"); kvm_mmu_invalidate_zap_all_pages(kvm); + } } static int mmu_shrink(struct shrinker *shrink, struct shrink_control *sc) |