Commit 4ad980ae authored by Hou Wenlong's avatar Hou Wenlong Committed by Sean Christopherson
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KVM: x86/mmu: Cleanup range-based flushing for given page 



Use the new kvm_flush_remote_tlbs_gfn() helper to cleanup the call sites
of range-based flushing for given page, which makes the code clear.

Signed-off-by: default avatarHou Wenlong <houwenlong.hwl@antgroup.com>
Link: https://lore.kernel.org/r/593ee1a876ece0e819191c0b23f56b940d6686db.1665214747.git.houwenlong.hwl@antgroup.com


Signed-off-by: default avatarSean Christopherson <seanjc@google.com>
parent 3cdf9374

arch/x86/kvm/mmu/mmu.c

+2 −3
Original line number Diff line number Diff line
@@ -824,7 +824,7 @@ static void account_shadowed(struct kvm *kvm, struct kvm_mmu_page *sp) 
	kvm_mmu_gfn_disallow_lpage(slot, gfn);



	if (kvm_mmu_slot_gfn_write_protect(kvm, slot, gfn, PG_LEVEL_4K))

		kvm_flush_remote_tlbs_with_address(kvm, gfn, 1);

		kvm_flush_remote_tlbs_gfn(kvm, gfn, PG_LEVEL_4K);

}



void track_possible_nx_huge_page(struct kvm *kvm, struct kvm_mmu_page *sp)
@@ -2898,8 +2898,7 @@ static int mmu_set_spte(struct kvm_vcpu *vcpu, struct kvm_memory_slot *slot, 
	}



	if (flush)

		kvm_flush_remote_tlbs_with_address(vcpu->kvm, gfn,

				KVM_PAGES_PER_HPAGE(level));

		kvm_flush_remote_tlbs_gfn(vcpu->kvm, gfn, level);



	pgprintk("%s: setting spte %llx\n", __func__, *sptep);

arch/x86/kvm/mmu/tdp_mmu.c

+1 −2
Original line number Diff line number Diff line
@@ -680,8 +680,7 @@ static inline int tdp_mmu_zap_spte_atomic(struct kvm *kvm, 
	if (ret)

		return ret;



	kvm_flush_remote_tlbs_with_address(kvm, iter->gfn,

					   KVM_PAGES_PER_HPAGE(iter->level));

	kvm_flush_remote_tlbs_gfn(kvm, iter->gfn, iter->level);



	/*

	 * No other thread can overwrite the removed SPTE as they must either