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vmm: device_manager: Refactor make_virtio_pmem_devices

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Split it into a method that creates a single device which is called by
the multiple device version so this can be used when dynamically adding
a device.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2020-03-13 09:38:42 +00:00 committed by Sebastien Boeuf
parent a7296bbb52
commit 8c3ea8cd76
1 changed files with 85 additions and 77 deletions
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30
vmm/src/device_manager.rs
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@ -14,7 +14,7 @@ extern crate vm_device;
use crate::config::ConsoleOutputMode;
#[cfg(feature = "pci_support")]
use crate::config::DeviceConfig;
use crate::config::{DiskConfig, NetConfig, VmConfig};
use crate::config::{DiskConfig, NetConfig, PmemConfig, VmConfig};
use crate::interrupt::{
KvmLegacyUserspaceInterruptManager, KvmMsiInterruptManager, KvmRoutingEntry,
};
@ -1377,11 +1377,10 @@ impl DeviceManager {
Ok(devices)
}
fn make_virtio_pmem_devices(&mut self) -> DeviceManagerResult<Vec<(VirtioDeviceArc, bool)>> {
let mut devices = Vec::new();
// Add virtio-pmem if required
if let Some(pmem_list_cfg) = &self.config.lock().unwrap().pmem {
for pmem_cfg in pmem_list_cfg.iter() {
fn make_virtio_pmem_device(
&mut self,
pmem_cfg: &PmemConfig,
) -> DeviceManagerResult<(VirtioDeviceArc, bool)> {
let size = pmem_cfg.size;
// The memory needs to be 2MiB aligned in order to support
@ -1450,13 +1449,22 @@ impl DeviceManager {
.map_err(DeviceManagerError::CreateVirtioPmem)?,
));
devices.push((
Arc::clone(&virtio_pmem_device) as Arc<Mutex<dyn vm_virtio::VirtioDevice>>,
false,
));
self.migratable_devices
.push(Arc::clone(&virtio_pmem_device) as Arc<Mutex<dyn Migratable>>);
Ok((
Arc::clone(&virtio_pmem_device) as Arc<Mutex<dyn vm_virtio::VirtioDevice>>,
false,
))
}
fn make_virtio_pmem_devices(&mut self) -> DeviceManagerResult<Vec<(VirtioDeviceArc, bool)>> {
let mut devices = Vec::new();
// Add virtio-pmem if required
let pmem_devices = self.config.lock().unwrap().pmem.clone();
if let Some(pmem_list_cfg) = &pmem_devices {
for pmem_cfg in pmem_list_cfg.iter() {
devices.push(self.make_virtio_pmem_device(pmem_cfg)?);
}
}