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OpenCloudOS-Kernel
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Author SHA1 Message Date
Sean Christopherson 1c6f0b47fb KVM: nVMX: Track vmcs12 offsets for shadowed VMCS fields 
The vmcs12 fields offsets are constant and known at compile time.  Store
the associated offset for each shadowed field to avoid the costly lookup
in vmcs_field_to_offset() when copying between vmcs12 and the shadow
VMCS.  Avoiding the costly lookup reduces the latency of copying by
~100 cycles in each direction.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2019-06-18 11:46:05 +02:00
Sean Christopherson 609363cf81 KVM: nVMX: Move vmcs12 code to dedicated files 
vmcs12 is the KVM-defined struct used to track a nested VMCS, e.g. a
VMCS created by L1 for L2.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2018-12-14 12:34:30 +01:00