1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * KVM L1 hypervisor optimizations on Hyper-V.
6 #ifndef __ARCH_X86_KVM_KVM_ONHYPERV_H__
7 #define __ARCH_X86_KVM_KVM_ONHYPERV_H__
9 #if IS_ENABLED(CONFIG_HYPERV)
10 int hv_remote_flush_tlb_with_range(struct kvm *kvm,
11 struct kvm_tlb_range *range);
12 int hv_remote_flush_tlb(struct kvm *kvm);
14 static inline void hv_track_root_tdp(struct kvm_vcpu *vcpu, hpa_t root_tdp)
16 struct kvm_arch *kvm_arch = &vcpu->kvm->arch;
18 if (kvm_x86_ops.tlb_remote_flush == hv_remote_flush_tlb) {
19 spin_lock(&kvm_arch->hv_root_tdp_lock);
20 vcpu->arch.hv_root_tdp = root_tdp;
21 if (root_tdp != kvm_arch->hv_root_tdp)
22 kvm_arch->hv_root_tdp = INVALID_PAGE;
23 spin_unlock(&kvm_arch->hv_root_tdp_lock);
26 #else /* !CONFIG_HYPERV */
27 static inline void hv_track_root_tdp(struct kvm_vcpu *vcpu, hpa_t root_tdp)
30 #endif /* !CONFIG_HYPERV */