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You need two networks, not just one. The VM connected to both networks must then have two virtual NICs, each of which is connected to one of the networks. External Network . +-----------------+ | br0 | VM 1 | | +--| IP: 82.130.y.y | +-----------------+ | | IP: 10.0.0.11 |--+ | Host ...


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As of qemu 2.0.0 any x86 KVM VM will have x2apic automatically enabled, so there's no explicit need to opt in. From qemu.git: commit ef02ef5f4536dba090b12360a6c862ef0e57e3bc Author: Eduardo Habkost Date: Wed Feb 19 11:58:12 2014 -0300 target-i386: Enable x2apic by default on KVM


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OK, thanks to the bridge guys, I found the answer. My main problem was that I didn't realize that the "TX queue" means the bridge is transmitting TO the guest (i.e. the Windows virtio driver.) Basically the Windows virtio driver I was using was crashing. I was pointed at these: https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1325560 ...


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If you want the exact same output, you need a separate disk controller with a separate disk attached, connected via pci-passthrough to the guest. A virtio disk image is NOT the same disk as the physical drive it resides on. It's just an image, with it's own metadata. The virtio framework probably doesn't even supply the metadata hdparm queries for, because ...


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Please be advised....if you are using linux you can use raw and get the same benifits of qcow2 as far as size goes. ...If your file system supports holes (for example in ext2 or ext3 on Linux or NTFS on Windows), then only the written sectors will reserve space. ...


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Being RAW, the file contain a plain bit-level representation of the data inside it. In other words, RAW disks are always "compatible", because they contain no special structure/headers. What really matter, even with RAW disks, it the virtual hardware supported: a more recent QEMU version can present to the guest, by default, some virtualized hardware that ...


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Either you bridge the VM iface to the "external" network, or you set up iptables and create a DNAt entry for the ports needed.



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