RE: [v3 16/26] KVM: Make struct kvm_irq_routing_table accessible

From: Wu, Feng
Date: Fri Dec 19 2014 - 18:39:44 EST




> -----Original Message-----
> From: Paolo Bonzini [mailto:paolo.bonzini@xxxxxxxxx] On Behalf Of Paolo
> Bonzini
> Sent: Friday, December 19, 2014 8:00 PM
> To: Wu, Feng; linux-kernel@xxxxxxxxxxxxxxx
> Cc: iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx; kvm@xxxxxxxxxxxxxxx
> Subject: Re: [v3 16/26] KVM: Make struct kvm_irq_routing_table accessible
>
>
>
> On 19/12/2014 03:19, Wu, Feng wrote:
> >>> > >
> >>> > > +#ifdef CONFIG_HAVE_KVM_IRQ_ROUTING
> >>> > > +
> >>> > > +struct kvm_irq_routing_table {
> >>> > > + int chip[KVM_NR_IRQCHIPS][KVM_IRQCHIP_NUM_PINS];
> >>> > > + struct kvm_kernel_irq_routing_entry *rt_entries;
> >>> > > + u32 nr_rt_entries;
> >>> > > + /*
> >>> > > + * Array indexed by gsi. Each entry contains list of irq chips
> >>> > > + * the gsi is connected to.
> >>> > > + */
> >>> > > + struct hlist_head map[0];
> >>> > > +};
> >>> > > +
> >>> > > +#else
> >>> > > +
> >>> > > +struct kvm_irq_routing_table {};
> >> >
> >> > If possible, just make this "struct kvm_irq_routing_table;" and pull
> >> > this line to include/linux/kvm_types.h.
> >> >
> >> > Paolo
> > Do you mean move the definition of struct kvm_irq_routing_table
> > to include/linux/kvm_types.h and add a declaration here?
>
> Move
>
> struct kvm_irq_routing_table;
>
> to include/linux/kvm_types.h. In kvm_host.h, leave the #ifdef with the
> full definition but drop the #else.
>
> Paolo


Paolo, Thanks for the explanation. I notice that " struct kvm_irq_routing_table;"
is already in include/linux/kvm_types.h.

Thanks,
Feng
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