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Diffstat (limited to 'arch/x86/kvm/mmu.c')
-rw-r--r--arch/x86/kvm/mmu.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 417f36b7c0e4..c2121017f471 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -235,7 +235,12 @@ static unsigned int get_mmio_spte_generation(u64 spte)
static unsigned int kvm_current_mmio_generation(struct kvm *kvm)
{
- return kvm_memslots(kvm)->generation & MMIO_GEN_MASK;
+ /*
+ * Init kvm generation close to MMIO_MAX_GEN to easily test the
+ * code of handling generation number wrap-around.
+ */
+ return (kvm_memslots(kvm)->generation +
+ MMIO_MAX_GEN - 150) & MMIO_GEN_MASK;
}
static void mark_mmio_spte(struct kvm *kvm, u64 *sptep, u64 gfn,