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authorMiaohe Lin <linmiaohe@huawei.com>2022-09-07 16:06:57 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2022-09-22 17:03:20 -0400
commit604f533262aea08671a74c2fd630c7deb9eb3c0d (patch)
treeacf5d0cf8e891c86f1d8255fcda632c5d99cf8e9 /arch
parent561cafebb2cf97b0927b4fb0eba22de6200f682e (diff)
KVM: x86/mmu: add missing update to max_mmu_rmap_size
The update to statistic max_mmu_rmap_size is unintentionally removed by commit 4293ddb788c1 ("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: 4293ddb788c1 ("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>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kvm/mmu/mmu.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index e418ef3ecfcb..3552e6af3684 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -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(