[Xen-devel] Re: [PATCH 4/7] acpi: use indirect call to register gsi in different modes

["H. Peter Anvin" <hpa@xxxxxxxxx>]

On 10/06/2010 10:00 AM, Stefano Stabellini wrote:
> Peter,
> I sent this patch a while back as part of the "PV on HVM: receive
> interrupts as xen events" series (that it is based upon Konrad's
> pcifront series, he sent another version to the list yesterday).
> 
> Do you think that this is a reasonble approach?
> 
> If you want to give a look at the whole series you can find it here:
> 
> http://lkml.org/lkml/2010/8/30/170
> 
> everything else is Xen specific stuff.
> 
> Thanks in advance,
> 

On the surface it seems reasonable.

Thomas Gleixner has been working on greatly revamping a bunch of the x86
interrupt code, and this might interact with his stuff, so it would be
good if he could comment on it.

[tglx: what they're apparently working on is to redirect APIC interrupts
to Xen event channels so they don't have to interact with the simulated
memory-mapped APIC.  It's "paravirtualization light".]


-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.


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