On 15 November 2011 16:47, Sasha Levin <levinsasha928@xxxxxxxxx> wrote:
> + vmmio->hdr = (struct virtio_mmio_hdr) {
> + .magic = {'v', 'i', 'r', 't'},
> + .version = 1,
> + .device_id = device_id - 0x1000 + 1,
> + .vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET,
> + .queue_num_max = 256,
> + };
This isn't a PCI device, so does it make sense to use a PCI vendor
ID here? The kernel doesn't check the vendor ID at the moment,
but presumably the idea of the field is to allow the kernel to
work around implementation bugs/blacklist/whatever if necessary.
If that's the theory then it would make more sense for QEMU and
kvm-tool to use IDs that say "this is the QEMU implementation"
and "this is the kvm-tool implementation".
(I picked 0x554D4551 for QEMU...)
-- PMM
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