linux-kernel - [PATCH v4 2/7] KVM: x86/mmu: Rename kvm_tdp_mmu_zap

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Message-ID: <20250613202315.2790592-3-jthoughton@google.com>
Date: Fri, 13 Jun 2025 20:23:09 +0000
From: James Houghton <jthoughton@...gle.com>
To: Paolo Bonzini <pbonzini@...hat.com>, Sean Christopherson <seanjc@...gle.com>
Cc: Vipin Sharma <vipinsh@...gle.com>, David Matlack <dmatlack@...gle.com>, 
	James Houghton <jthoughton@...gle.com>, kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4 2/7] KVM: x86/mmu: Rename kvm_tdp_mmu_zap_sp() to better
 indicate its purpose

From: Vipin Sharma <vipinsh@...gle.com>

kvm_tdp_mmu_zap_sp() is only used for NX huge page recovery, so rename
it to kvm_tdp_mmu_zap_possible_nx_huge_page(). In a future commit, this
function will be changed to include logic specific to NX huge page
recovery.

Signed-off-by: Vipin Sharma <vipinsh@...gle.com>
Signed-off-by: James Houghton <jthoughton@...gle.com>
---
 arch/x86/kvm/mmu/mmu.c     | 2 +-
 arch/x86/kvm/mmu/tdp_mmu.c | 3 ++-
 arch/x86/kvm/mmu/tdp_mmu.h | 3 ++-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index f44d7f3acc179..b074f7bb5cc58 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -7607,7 +7607,7 @@ static void kvm_recover_nx_huge_pages(struct kvm *kvm,
 		if (slot && kvm_slot_dirty_track_enabled(slot))
 			unaccount_nx_huge_page(kvm, sp);
 		else if (mmu_type == KVM_TDP_MMU)
-			flush |= kvm_tdp_mmu_zap_sp(kvm, sp);
+			flush |= kvm_tdp_mmu_zap_possible_nx_huge_page(kvm, sp);
 		else
 			kvm_mmu_prepare_zap_page(kvm, sp, &invalid_list);
 		WARN_ON_ONCE(sp->nx_huge_page_disallowed);
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index 48b070f9f4e13..19907eb04a9c4 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -925,7 +925,8 @@ static void tdp_mmu_zap_root(struct kvm *kvm, struct kvm_mmu_page *root,
 	rcu_read_unlock();
 }
 
-bool kvm_tdp_mmu_zap_sp(struct kvm *kvm, struct kvm_mmu_page *sp)
+bool kvm_tdp_mmu_zap_possible_nx_huge_page(struct kvm *kvm,
+					   struct kvm_mmu_page *sp)
 {
 	u64 old_spte;
 
diff --git a/arch/x86/kvm/mmu/tdp_mmu.h b/arch/x86/kvm/mmu/tdp_mmu.h
index 52acf99d40a00..bd62977c9199e 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.h
+++ b/arch/x86/kvm/mmu/tdp_mmu.h
@@ -64,7 +64,8 @@ static inline struct kvm_mmu_page *tdp_mmu_get_root(struct kvm_vcpu *vcpu,
 }
 
 bool kvm_tdp_mmu_zap_leafs(struct kvm *kvm, gfn_t start, gfn_t end, bool flush);
-bool kvm_tdp_mmu_zap_sp(struct kvm *kvm, struct kvm_mmu_page *sp);
+bool kvm_tdp_mmu_zap_possible_nx_huge_page(struct kvm *kvm,
+					   struct kvm_mmu_page *sp);
 void kvm_tdp_mmu_zap_all(struct kvm *kvm);
 void kvm_tdp_mmu_invalidate_roots(struct kvm *kvm,
 				  enum kvm_tdp_mmu_root_types root_types);
-- 
2.50.0.rc2.692.g299adb8693-goog