Re: [RFC PATCH 2/2] KVM: x86: use __kvm_guest_exit

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> >  static bool vmx_has_high_real_mode_segbase(void)
> > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> > index 7e3041ef050f..cc741b68139c 100644
> > --- a/arch/x86/kvm/x86.c
> > +++ b/arch/x86/kvm/x86.c
> > @@ -6706,21 +6706,13 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
> >  
> >  	kvm_put_guest_xcr0(vcpu);
> >  
> > -	/* Interrupt is enabled by handle_external_intr() */
> >  	kvm_x86_ops->handle_external_intr(vcpu);
> >  
> >  	++vcpu->stat.exits;
> >  
> > -	/*
> > -	 * We must have an instruction between local_irq_enable() and
> > -	 * kvm_guest_exit(), so the timer interrupt isn't delayed by
> > -	 * the interrupt shadow.  The stat.exits increment will do nicely.
> > -	 * But we need to prevent reordering, hence this barrier():
> > -	 */
> > -	barrier();
> > -
> > -	kvm_guest_exit();
> > +	__kvm_guest_exit();
> 
> kvm_guest_exit has no more callers and so can be removed.

ARM and PPC call it.

Paolo
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