1 files changed, 5 insertions, 3 deletions

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 07bb22157338..d43867c33bc4 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -4481,9 +4481,11 @@ static bool kvm_mmu_zap_collapsible_spte(struct kvm *kvm,
                 pfn = spte_to_pfn(*sptep);
 
                 /*
-                 * Only EPT supported for now; otherwise, one would need to
-                 * find out efficiently whether the guest page tables are
-                 * also using huge pages.
+                 * We cannot do huge page mapping for indirect shadow pages,
+                 * which are found on the last rmap (level = 1) when not using
+                 * tdp; such shadow pages are synced with the page table in
+                 * the guest, and the guest page table is using 4K page size
+                 * mapping if the indirect sp has level = 1.
                  */
                 if (sp->role.direct &&
                         !kvm_is_reserved_pfn(pfn) &&