Merge tag 'upstream-3.11-rc1' of git://git.infradead.org/linux-ubifs

[~andy/linux] / arch / x86 / kvm / mmu.c

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index f385a4cf4bfde8117fddeff8dd0337cabc3f9f24..0d094da49541d171e7218c7340e63dce6d35674c 100644 (file)
--- 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)