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KVM: x86: hyper-v: Introduce KVM_CAP_HYPERV_ENFORCE_CPUID

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Modeled after KVM_CAP_ENFORCE_PV_FEATURE_CPUID, the new capability allows
for limiting Hyper-V features to those exposed to the guest in Hyper-V
CPUIDs (0x40000003, 0x40000004, ...).

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210521095204.2161214-3-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Vitaly Kuznetsov 2021-05-21 11:51:36 +02:00 • committed by Paolo Bonzini
parent f15cdceab5
commit 644f706719
6 changed files with 39 additions and 0 deletions
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include/uapi/linux/kvm.h
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@ -1083,6 +1083,7 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_SGX_ATTRIBUTE 196
#define KVM_CAP_VM_COPY_ENC_CONTEXT_FROM 197
#define KVM_CAP_PTP_KVM 198
#define KVM_CAP_HYPERV_ENFORCE_CPUID 199
#ifdef KVM_CAP_IRQ_ROUTING