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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2018-10-16 18:50:01 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-10-17 00:30:14 +0200 |
| commit | 57b119da3594f5145a64fdebe0ac9ee0cc65f371 (patch) | |
| tree | eda660f821fba5b44f0c18057ab98646ac6b3fa0 /include/uapi | |
| parent | KVM: VMX: refactor evmcs_sanitize_exec_ctrls() (diff) | |
| download | linux-57b119da3594f5145a64fdebe0ac9ee0cc65f371.tar.xz linux-57b119da3594f5145a64fdebe0ac9ee0cc65f371.zip | |
KVM: nVMX: add KVM_CAP_HYPERV_ENLIGHTENED_VMCS capability
Enlightened VMCS is opt-in. The current version does not contain all
fields supported by nested VMX so we must not advertise the
corresponding VMX features if enlightened VMCS is enabled.
Userspace is given the enlightened VMCS version supported by KVM as
part of enabling KVM_CAP_HYPERV_ENLIGHTENED_VMCS. The version is to
be advertised to the nested hypervisor, currently done via a cpuid
leaf for Hyper-V.
Suggested-by: Ladi Prosek <lprosek@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/kvm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 97780a0277fe..a2f2b8845502 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -963,6 +963,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_PPC_NESTED_HV 160 #define KVM_CAP_HYPERV_SEND_IPI 161 #define KVM_CAP_COALESCED_PIO 162 +#define KVM_CAP_HYPERV_ENLIGHTENED_VMCS 163 #ifdef KVM_CAP_IRQ_ROUTING |