KVM: VMX: Shadow VMCS pin controls

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Prepare to shadow all major control fields on a per-VMCS basis, which
allows KVM to avoid costly VMWRITEs when switching between vmcs01 and
vmcs02.

Shadowing pin controls also allows a future patch to remove the per-VMCS
'hv_timer_armed' flag, as the shadow copy is a superset of said flag.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2019-05-07 12:17:55 -07:00 • committed by Paolo Bonzini

parent 70f932ecdf

commit c5f2c76643

3 changed files with 8 additions and 7 deletions

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3

arch/x86/kvm/vmx/nested.c

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10

arch/x86/kvm/vmx/vmx.c

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2

arch/x86/kvm/vmx/vmx.h

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