Re: [Xen-devel] [PATCH v2 5/5] VMX: Use posted interrupt to deliver virutal interrupt

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 17.04.13 at 08:51, Yang Zhang <yang.z.zhang@xxxxxxxxx> wrote:
> @@ -132,9 +135,10 @@ void vlapic_set_irq(struct vlapic *vlapic, uint8_t vec, 
> uint8_t trig)
>      if ( hvm_funcs.update_eoi_exit_bitmap )
>          hvm_funcs.update_eoi_exit_bitmap(target, vec, trig);
>  
> -    /* We may need to wake up target vcpu, besides set pending bit here */
> -    if ( !vlapic_test_and_set_irr(vec, vlapic) )
> -        vcpu_kick(target);
> +    if ( hvm_funcs.deliver_posted_intr )
> +        hvm_funcs.deliver_posted_intr(target, vec);
> +    else if ( !vlapic_test_and_set_irr(vec, vlapic) )
> +        vcpu_kick(vlapic_vcpu(vlapic));

Why can't that remain to be 

        vcpu_kick(target);

Jan



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