RE: [Xen-ia64-devel][PATCH]Change to new interrupt deliver mechanism

["Xu, Anthony" <anthony.xu@xxxxxxxxx>]

Doi.Tsunehisa@xxxxxxxxxxxxxx write on 2006年12月6日 10:56:
> Hi Anthony,

>   We had implemented older PV-on-HVM with the method like this.
> But, we found the issue that interrupt was injected during interrupt
> masking of VIOSAPIC. So we changed to implement it.
> 
>   In this time, we have to implement it that interrupt injection
> follows VIOSAPIC status. Thus, HV should look for VIOSAPIC, I think.
> 

Hi Dio,

If platform_pci conforms to IOSAPIC, I has below suggestion.

1. platform_pci calls set_callback_irq using vector,

2. since HVMOP_set_param hypercall is arch-specific, HV can translate vector to
    irq, ( VIOSAPIC can provide this interface),

3. if there is event to besent, HV calls viosapic_set_irq to pend interrupt.


What's your opinion about this?


Thanks,
--Anthony.



> Thanks,
> - Tsunehisa Doi

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