These patches add the VMX capability MSRs to the /dev/kvm ioctls KVM_GET_MSR_FEATURE_INDEX_LIST and KVM_GET_MSRS, so that userspace can easily probe which VMX features are actually supported by KVM. This will help the implementation of nested hypervisor migration, even for heterogeneous clusters. Patch 1 is just refactoring, while patch 2 implements the feature. Thanks, Paolo Paolo Bonzini (2): KVM: nVMX: introduce struct nested_vmx_msrs KVM: nVMX: expose VMX capabilities for nested hypervisors to userspace arch/x86/kvm/vmx.c | 367 ++++++++++++++++++++++++++++------------------------- arch/x86/kvm/x86.c | 19 +++ 2 files changed, 210 insertions(+), 176 deletions(-) -- 1.8.3.1
