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kvm tools: allow arch to specify default virtio transport

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Some architectures may provide only a restricted PCI implementation and
therefore prefer MMIO as the transport for virtio devices.

This patch allows the arch backend to specify the default virtio
transport. Some devices (e.g. net) allow the transport to be overriden
by the user and are left alone by this change.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
Will Deacon
2012-11-12 11:57:26 +00:00
parent 7aba29c1f8
commit ae06ce7165
8 changed files with 16 additions and 6 deletions
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virtio/console.c
+2 -1
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@@ -195,7 +195,8 @@ int virtio_console__init(struct kvm *kvm)
return 0;
virtio_init(kvm, &cdev, &cdev.vdev, &con_dev_virtio_ops,
VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_CONSOLE, VIRTIO_ID_CONSOLE, PCI_CLASS_CONSOLE);
VIRTIO_DEFAULT_TRANS, PCI_DEVICE_ID_VIRTIO_CONSOLE,
VIRTIO_ID_CONSOLE, PCI_CLASS_CONSOLE);
if (compat_id == -1)
compat_id = virtio_compat_add_message("virtio-console", "CONFIG_VIRTIO_CONSOLE");