linux-kernel - [PATCH 0/2] KVM: nVMX: expose VMX capabilities as MSR features

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Date:   Mon, 26 Feb 2018 13:40:07 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:     dmatlack@...gle.com
Subject: [PATCH 0/2] KVM: nVMX: expose VMX capabilities as MSR features

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