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KVM: x86/mmu: add missing update to max_mmu_rmap_size

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The update to statistic max_mmu_rmap_size is unintentionally removed by
commit 4293ddb788 ("KVM: x86/mmu: Remove redundant spte present check
in mmu_set_spte"). Add missing update to it or max_mmu_rmap_size will
always be nonsensical 0.

Fixes: 4293ddb788 ("KVM: x86/mmu: Remove redundant spte present check in mmu_set_spte")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Message-Id: <20220907080657.42898-1-linmiaohe@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Miaohe Lin 2022-09-07 16:06:57 +08:00 committed by Paolo Bonzini
parent 561cafebb2
commit 604f533262
1 changed files with 2 additions and 0 deletions
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2
arch/x86/kvm/mmu/mmu.c
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@ -1596,6 +1596,8 @@ static void __rmap_add(struct kvm *kvm,
rmap_head = gfn_to_rmap(gfn, sp->role.level, slot);
rmap_count = pte_list_add(cache, spte, rmap_head);
if (rmap_count > kvm->stat.max_mmu_rmap_size)
kvm->stat.max_mmu_rmap_size = rmap_count;
if (rmap_count > RMAP_RECYCLE_THRESHOLD) {
kvm_zap_all_rmap_sptes(kvm, rmap_head);
kvm_flush_remote_tlbs_with_address(