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vmm: Add support for multiple virtio-net devices

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Until now, the VMM was only accepting a single instance of virtio-net
device. This commit extends the virtio-net support by allowing several
devices to be created for a single VM.

Fixes #71

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf
2019-07-08 15:31:13 -07:00
committed by Rob Bradford
parent a2947f9a9f
commit f0a76ad424
4 changed files with 103 additions and 42 deletions
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40
vmm/src/vm.rs
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@@ -567,28 +567,30 @@ impl DeviceManager {
}
// Add virtio-net if required
if let Some(net_cfg) = &vm_cfg.net {
let mut virtio_net_device: vm_virtio::Net;
if let Some(net_list_cfg) = &vm_cfg.net {
for net_cfg in net_list_cfg.iter() {
let mut virtio_net_device: vm_virtio::Net;
if let Some(tap_if_name) = net_cfg.tap {
let tap = Tap::open_named(tap_if_name).map_err(DeviceManagerError::OpenTap)?;
virtio_net_device = vm_virtio::Net::new_with_tap(tap, Some(&net_cfg.mac))
.map_err(DeviceManagerError::CreateVirtioNet)?;
} else {
virtio_net_device =
vm_virtio::Net::new(net_cfg.ip, net_cfg.mask, Some(&net_cfg.mac))
if let Some(tap_if_name) = net_cfg.tap {
let tap = Tap::open_named(tap_if_name).map_err(DeviceManagerError::OpenTap)?;
virtio_net_device = vm_virtio::Net::new_with_tap(tap, Some(&net_cfg.mac))
.map_err(DeviceManagerError::CreateVirtioNet)?;
}
} else {
virtio_net_device =
vm_virtio::Net::new(net_cfg.ip, net_cfg.mask, Some(&net_cfg.mac))
.map_err(DeviceManagerError::CreateVirtioNet)?;
}
DeviceManager::add_virtio_pci_device(
Box::new(virtio_net_device),
memory.clone(),
allocator,
vm_fd,
&mut pci,
&mut mmio_bus,
&interrupt_info,
)?;
DeviceManager::add_virtio_pci_device(
Box::new(virtio_net_device),
memory.clone(),
allocator,
vm_fd,
&mut pci,
&mut mmio_bus,
&interrupt_info,
)?;
}
}
// Add virtio-rng if required