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Re: [Qemu-devel] [RFC 0/4] virtio-mmio transport

From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] [RFC 0/4] virtio-mmio transport
Date: Mon, 12 Dec 2011 12:14:54 +0000

I noticed the virtio-mmio spec has an interrupt status register.  On
x86 and virtio-pci things are moving towards Message Signalled
Interrupts and virtqueues having their own interrupts for better
performance and flexibility.  Any thoughts on how 1 interrupt per
virtqueue works for virtio-mmio?

My feeling is that the interrupt details are board-specific and can't
be described in virtio-mmio, but it still jumped out at me that it
looks like you're only thinking of 1 interrupt for the device.


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