diff options
| author | Sean Christopherson <seanjc@google.com> | 2026-07-09 13:49:37 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-07-10 09:01:11 -0700 |
| commit | 06d38eaa78fdac1cc889f261fa420eba8e9caa1a (patch) | |
| tree | e2a4abe2b53cd82888794c5f59f5003e47a8f0fb | |
| parent | ed15cb21999217e549414c128b4a0485debf6278 (diff) | |
KVM: x86/mmu: Fold kvm_mmu_zap_memslot() into kvm_arch_flush_shadow_memslot()
Fold kvm_mmu_zap_memslot() into its sole caller so that its GFN range
structure can be used to trigger guest_memfd invalidations regardless of
whether KVM will do a partial or full zap of the MMU.
No functional change intended.
Cc: stable@vger.kernel.org # 6.12.x
Reviewed-by: Michael Roth <michael.roth@amd.com>
Link: https://patch.msgid.link/20260709204948.1988414-8-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
| -rw-r--r-- | arch/x86/kvm/mmu/mmu.c | 35 |
1 files changed, 15 insertions, 20 deletions
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 6c13da942bfc..223d80b12b9b 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -7560,8 +7560,14 @@ out_flush: kvm_mmu_remote_flush_or_zap(kvm, &invalid_list, flush); } -static void kvm_mmu_zap_memslot(struct kvm *kvm, - struct kvm_memory_slot *slot) +static inline bool kvm_memslot_flush_zap_all(struct kvm *kvm) +{ + return kvm->arch.vm_type == KVM_X86_DEFAULT_VM && + kvm_check_has_quirk(kvm, KVM_X86_QUIRK_SLOT_ZAP_ALL); +} + +void kvm_arch_flush_shadow_memslot(struct kvm *kvm, + struct kvm_memory_slot *slot) { struct kvm_gfn_range range = { .slot = slot, @@ -7572,25 +7578,14 @@ static void kvm_mmu_zap_memslot(struct kvm *kvm, }; bool flush; - write_lock(&kvm->mmu_lock); - flush = kvm_unmap_gfn_range(kvm, &range); - kvm_mmu_zap_memslot_pages_and_flush(kvm, slot, flush); - write_unlock(&kvm->mmu_lock); -} - -static inline bool kvm_memslot_flush_zap_all(struct kvm *kvm) -{ - return kvm->arch.vm_type == KVM_X86_DEFAULT_VM && - kvm_check_has_quirk(kvm, KVM_X86_QUIRK_SLOT_ZAP_ALL); -} - -void kvm_arch_flush_shadow_memslot(struct kvm *kvm, - struct kvm_memory_slot *slot) -{ - if (kvm_memslot_flush_zap_all(kvm)) + if (kvm_memslot_flush_zap_all(kvm)) { kvm_mmu_zap_all_fast(kvm); - else - kvm_mmu_zap_memslot(kvm, slot); + } else { + write_lock(&kvm->mmu_lock); + flush = kvm_unmap_gfn_range(kvm, &range); + kvm_mmu_zap_memslot_pages_and_flush(kvm, slot, flush); + write_unlock(&kvm->mmu_lock); + } } void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm, u64 gen) |