diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 2dc3e64b3f2f..49b1154366ce 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -1939,13 +1939,11 @@ static void hv_tlb_flush_enqueue(struct kvm_vcpu *vcpu, u64 *entries, int count, bool is_guest_mode) { struct kvm_vcpu_hv_tlb_flush_fifo *tlb_flush_fifo; - struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu); u64 flush_all_entry = KVM_HV_TLB_FLUSHALL_ENTRY; - if (!hv_vcpu) - return; - tlb_flush_fifo = kvm_hv_get_tlb_flush_fifo(vcpu, is_guest_mode); + if (!tlb_flush_fifo) + return; spin_lock(&tlb_flush_fifo->write_lock); @@ -1972,15 +1970,16 @@ static void hv_tlb_flush_enqueue(struct kvm_vcpu *vcpu, u64 *entries, int count, int kvm_hv_vcpu_flush_tlb(struct kvm_vcpu *vcpu) { struct kvm_vcpu_hv_tlb_flush_fifo *tlb_flush_fifo; - struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu); u64 entries[KVM_HV_TLB_FLUSH_FIFO_SIZE]; int i, j, count; gva_t gva; - if (!tdp_enabled || !hv_vcpu) + if (!tdp_enabled) return -EINVAL; tlb_flush_fifo = kvm_hv_get_tlb_flush_fifo(vcpu, is_guest_mode(vcpu)); + if (!tlb_flush_fifo) + return -EINVAL; count = kfifo_out(&tlb_flush_fifo->entries, entries, KVM_HV_TLB_FLUSH_FIFO_SIZE); diff --git a/arch/x86/kvm/hyperv.h b/arch/x86/kvm/hyperv.h index 1c8f7aaab063..2da11b967c41 100644 --- a/arch/x86/kvm/hyperv.h +++ b/arch/x86/kvm/hyperv.h @@ -202,6 +202,9 @@ static inline struct kvm_vcpu_hv_tlb_flush_fifo *kvm_hv_get_tlb_flush_fifo(struc int i = is_guest_mode ? HV_L2_TLB_FLUSH_FIFO : HV_L1_TLB_FLUSH_FIFO; + if (!hv_vcpu) + return NULL; + return &hv_vcpu->tlb_flush_fifo[i]; } @@ -209,10 +212,12 @@ static inline void kvm_hv_vcpu_purge_flush_tlb(struct kvm_vcpu *vcpu) { struct kvm_vcpu_hv_tlb_flush_fifo *tlb_flush_fifo; - if (!to_hv_vcpu(vcpu) || !kvm_check_request(KVM_REQ_HV_TLB_FLUSH, vcpu)) + if (!kvm_check_request(KVM_REQ_HV_TLB_FLUSH, vcpu)) return; tlb_flush_fifo = kvm_hv_get_tlb_flush_fifo(vcpu, is_guest_mode(vcpu)); + if (!tlb_flush_fifo) + return; kfifo_reset_out(&tlb_flush_fifo->entries); }