| Message ID | 1b95b17331e6a863f8336e305df936b0d164b688.1656039275.git.houwenlong.hwl@antgroup.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Fix wrong gfn range of tlb flushing with range | expand |
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c index f3a430d64975..85838ae169b8 100644 --- a/arch/x86/kvm/mmu/tdp_mmu.c +++ b/arch/x86/kvm/mmu/tdp_mmu.c @@ -1075,8 +1075,8 @@ static int tdp_mmu_map_handle_target_level(struct kvm_vcpu *vcpu, return RET_PF_RETRY; else if (is_shadow_present_pte(iter->old_spte) && !is_last_spte(iter->old_spte, iter->level)) - kvm_flush_remote_tlbs_with_address(vcpu->kvm, sp->gfn, - KVM_PAGES_PER_HPAGE(iter->level + 1)); + kvm_flush_remote_tlbs_with_address(vcpu->kvm, iter->gfn, + KVM_PAGES_PER_HPAGE(iter->level)); /* * If the page fault was caused by a write but the page is write
Since the children SP is zapped, the gfn range of tlb flushing should be the range covered by children SP not parent SP. Replace sp->gfn which is the base gfn of parent SP with iter->gfn and use the correct size of gfn range for children SP to reduce tlb flushing range. Signed-off-by: Hou Wenlong <houwenlong.hwl@antgroup.com> --- arch/x86/kvm/mmu/tdp_mmu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)