Re: [Xen-devel] [PATCH 2/4] VMX: Turn on posted interrupt bit in vmcs

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 09.04.13 at 08:01, Yang Zhang <yang.z.zhang@xxxxxxxxx> wrote:
> --- a/xen/include/asm-x86/hvm/vmx/vmcs.h
> +++ b/xen/include/asm-x86/hvm/vmx/vmcs.h
> @@ -73,6 +73,12 @@ struct vmx_domain {
>      unsigned long apic_access_mfn;
>  };
>  
> +struct pi_desc {
> +    u32 pir[8];
> +    u32 control;
> +    u32 rsvd[7];
> +} __attribute__ ((packed, aligned (64)));

The "packed" part is pointless here afaict.

> --- a/xen/include/asm-x86/mach-default/irq_vectors.h
> +++ b/xen/include/asm-x86/mach-default/irq_vectors.h
> @@ -9,12 +9,13 @@
>  #define CALL_FUNCTION_VECTOR 0xfb
>  #define LOCAL_TIMER_VECTOR   0xfa
>  #define PMU_APIC_VECTOR      0xf9
> +#define POSTED_INTERRUPT_VECTOR      0xf8

Is it really necessary to use a static, high priority vector here?

Jan


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