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Re: [Xen-devel] [rfc 00/18] ioemu: use devfn instead of slots as the uni
| To: | Yuji Shimada <shimada-yxb@xxxxxxxxxxxxxxx>, Simon Horman <horms@xxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [rfc 00/18] ioemu: use devfn instead of slots as the unit for passthrough |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Tue, 03 Mar 2009 08:56:11 +0000 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> |
| Delivery-date: | Tue, 03 Mar 2009 00:56:37 -0800 |
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| Thread-topic: | [Xen-devel] [rfc 00/18] ioemu: use devfn instead of slots as the unit for passthrough |
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On 03/03/2009 05:57, "Yuji Shimada" <shimada-yxb@xxxxxxxxxxxxxxx> wrote: >> Your approach is also no good for PCI hotplug, since I'm pretty sure you >> cannot update GSI bindings after the guest has booted. Unless there's some >> ACPI magic that could be employed in this case. > > If you want to assign many devices to guest, it is one of approaches > to expand GSIs statically. You can support hot-plug easily. How many devices do you want to assign? Bear in mind that most guests will support MSI anyway, so this INTx issue is rather moot. I'd rather stretch what we have than introduce extra INTx modes, requiring backward compatibility, etc. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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