diff options
| author | Vineeth Pillai <viremana@linux.microsoft.com> | 2021-06-03 18:14:36 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-17 20:09:36 +0300 |
| commit | 3c86c0d3dbb98865a60a0c9d5c3a229af15a8a96 (patch) | |
| tree | b8fa9fed44dbb3ce435ccc00eebe4fa943cca050 /arch/x86/kvm/kvm_onhyperv.h | |
| parent | 32431fb2538df56693a5852a50013549c827f57c (diff) | |
| download | linux-3c86c0d3dbb98865a60a0c9d5c3a229af15a8a96.tar.xz | |
KVM: x86: hyper-v: Move the remote TLB flush logic out of vmx
Currently the remote TLB flush logic is specific to VMX.
Move it to a common place so that SVM can use it as well.
Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com>
Message-Id: <4f4e4ca19778437dae502f44363a38e99e3ef5d1.1622730232.git.viremana@linux.microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/kvm_onhyperv.h')
| -rw-r--r-- | arch/x86/kvm/kvm_onhyperv.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/x86/kvm/kvm_onhyperv.h b/arch/x86/kvm/kvm_onhyperv.h new file mode 100644 index 000000000000..1c67abf2eba9 --- /dev/null +++ b/arch/x86/kvm/kvm_onhyperv.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * KVM L1 hypervisor optimizations on Hyper-V. + */ + +#ifndef __ARCH_X86_KVM_KVM_ONHYPERV_H__ +#define __ARCH_X86_KVM_KVM_ONHYPERV_H__ + +#if IS_ENABLED(CONFIG_HYPERV) +int hv_remote_flush_tlb_with_range(struct kvm *kvm, + struct kvm_tlb_range *range); +int hv_remote_flush_tlb(struct kvm *kvm); + +static inline void hv_track_root_tdp(struct kvm_vcpu *vcpu, hpa_t root_tdp) +{ + struct kvm_arch *kvm_arch = &vcpu->kvm->arch; + + if (kvm_x86_ops.tlb_remote_flush == hv_remote_flush_tlb) { + spin_lock(&kvm_arch->hv_root_tdp_lock); + vcpu->arch.hv_root_tdp = root_tdp; + if (root_tdp != kvm_arch->hv_root_tdp) + kvm_arch->hv_root_tdp = INVALID_PAGE; + spin_unlock(&kvm_arch->hv_root_tdp_lock); + } +} +#else /* !CONFIG_HYPERV */ +static inline void hv_track_root_tdp(struct kvm_vcpu *vcpu, hpa_t root_tdp) +{ +} +#endif /* !CONFIG_HYPERV */ + +#endif |