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Re: [Xen-devel] [PATCH v1 1/8]: PVH basic and hader file changes



On Fri, 2012-09-21 at 20:15 +0100, Mukesh Rathor wrote:
> diff --git a/drivers/xen/events.c b/drivers/xen/events.c
> index 7595581..f656791 100644
> --- a/drivers/xen/events.c
> +++ b/drivers/xen/events.c
> @@ -1755,7 +1755,7 @@ int xen_set_callback_via(uint64_t via)
>  }
>  EXPORT_SYMBOL_GPL(xen_set_callback_via);
>  
> -#ifdef CONFIG_XEN_PVHVM
> +
>  /* Vector callbacks are better than PCI interrupts to receive event
>   * channel notifications because we can receive vector callbacks on
> any
>   * vcpu and we don't need PCI support or APIC interactions. */
> @@ -1779,9 +1779,6 @@ void xen_callback_vector(void)
>                         alloc_intr_gate(XEN_HVM_EVTCHN_CALLBACK,
> xen_hvm_callback_vector);
>         }
>  }
> -#else
> -void xen_callback_vector(void) {}
> -#endif
>  
>  void __init xen_init_IRQ(void)
>  { 

This breaks on ARM because this like XEN_HVM_EVTCHN_CALLBACK, which are
inside this ifdef, are actually X86 specific.

I suspect that xen_callback_vector needs to be moved in to an arch
specific file so that we can supply a suitably different implementation
on ARM -- Stefano what do you think?

Ian.


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