From 5158917c7b0196aefc1a4e9bc4458777dd2c41ec Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Mon, 3 Dec 2018 13:53:10 -0800 Subject: [PATCH] KVM: x86: nVMX: Allow nested_enable_evmcs to be NULL ...so that it can conditionally set by the VMX code, i.e. iff @nested is true. This will in turn allow it to be moved out of vmx.c and into a nested-specified file. Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- arch/x86/kvm/x86.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 6af846c54660..54ef79421c6b 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3827,6 +3827,8 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu, return kvm_hv_activate_synic(vcpu, cap->cap == KVM_CAP_HYPERV_SYNIC2); case KVM_CAP_HYPERV_ENLIGHTENED_VMCS: + if (!kvm_x86_ops->nested_enable_evmcs) + return -ENOTTY; r = kvm_x86_ops->nested_enable_evmcs(vcpu, &vmcs_version); if (!r) { user_ptr = (void __user *)(uintptr_t)cap->args[0];