On Thu, Jan 14, 2010 at 05:54:51PM +0200, Avi Kivity wrote: > On 01/14/2010 05:47 PM, Michael S. Tsirkin wrote: > > > >>Michael, I think 'DisINTx-' means the device is not PCI 2.3 compliant? > >No it doesn't, just that interrupt disable bit is not set. > > Thanks. Ryan, while kvm doesn't support assigning a device with > shared interrupts now, in the future it will likely be possible to > share it. You'll still need an iommu. No IOMMU on this machine and this is all integrated hardware. This IOMMU requirement seems so strange. I used to pass through PCI devices ages ago when using the DOSEMU emulator. It emulated PCI BIOS functions and mapped the PCI config space and memory regions into the emulator process. The device interrupt was grabbed and handled in the emulator's kernel support, waking up the emulator when an interrupt came in. I don't really know anything about kvm internals, but I'd like to understand more about the particulars of the IOMMU requirement if you don't mind. -- Ryan C. Underwood, <nemesis@xxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
