KVM: VMX: Optimize handling of VM-Entry failures in vmx_vcpu_run()

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Mark the VM-Fail, VM-Exit on VM-Enter, and #MC on VM-Enter paths as
'unlikely' so as to improve code generation so that it favors successful
VM-Enter.  The performance of successful VM-Enter is for more important,
irrespective of whether or not success is actually likely.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200410174703.1138-2-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2020-04-10 10:47:02 -07:00 • committed by Paolo Bonzini

parent b8d295f96b

commit 873e1da169

1 changed files with 8 additions and 3 deletions

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arch/x86/kvm/vmx/vmx.c

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