diff options
| author | Vipin Sharma <vipinsh@google.com> | 2023-03-21 15:00:13 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-04-04 12:37:30 -0700 |
| commit | cf05e8c7325e341d7e1b1920fa580a130ec2c350 (patch) | |
| tree | 02c0d1f6b4234b0d6de5a7c847aa912cfed7995f | |
| parent | 89c313f20c1ed30e04cedae735994c902ee93ddb (diff) | |
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>
| -rw-r--r-- | arch/x86/kvm/mmu/tdp_mmu.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c index a70cc1dae18a..950c5d23ecee 100644 --- 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(); |