KVM: x86/mmu: Drop access tracking checks when clearing TDP MMU dirty bits

Drop the unnecessary call to handle access-tracking changes when clearing
the dirty status of TDP MMU SPTEs.  Neither the Dirty bit nor the Writable
bit has any impact on the accessed state of a page, i.e. clearing only
the aforementioned bits doesn't make an accessed SPTE suddently not
accessed.

Signed-off-by: Vipin Sharma <vipinsh@google.com>
[sean: split to separate patch, write changelog]
Link: https://lore.kernel.org/r/20230321220021.2119033-6-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index a70cc1d..950c5d2 100644 (file)
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -1691,8 +1691,6 @@ static void clear_dirty_pt_masked(struct kvm *kvm, struct kvm_mmu_page *root,
 
                __handle_changed_spte(kvm, iter.as_id, iter.gfn, iter.old_spte,
                                      iter.old_spte & ~dbit, iter.level, false);
-               handle_changed_spte_acc_track(iter.old_spte, iter.old_spte & ~dbit,
-                                             iter.level);
        }
 
        rcu_read_unlock();