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vmm: device_manager: Update virtio devices memory with a single region

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Relies on the preliminary work allowing virtio devices to be updated
with a single memory at a time instead of updating the entire memory at
once.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf 2021-03-05 14:44:54 +01:00
parent 9e53efa3ca
commit 00873e5f84
1 changed files with 4 additions and 6 deletions
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10
vmm/src/device_manager.rs
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@ -93,12 +93,11 @@ use vm_device::interrupt::{
};
use vm_device::{Bus, BusDevice, Resource};
use vm_memory::guest_memory::FileOffset;
#[cfg(feature = "cmos")]
use vm_memory::GuestMemory;
use vm_memory::{
Address, GuestAddress, GuestAddressSpace, GuestMemoryRegion, GuestRegionMmap, GuestUsize,
MmapRegion,
Address, GuestAddress, GuestMemoryRegion, GuestRegionMmap, GuestUsize, MmapRegion,
};
#[cfg(feature = "cmos")]
use vm_memory::{GuestAddressSpace, GuestMemory};
use vm_migration::{
Migratable, MigratableError, Pausable, Snapshot, SnapshotDataSection, Snapshottable,
Transportable,
@ -3096,12 +3095,11 @@ impl DeviceManager {
}
pub fn update_memory(&self, new_region: &Arc<GuestRegionMmap>) -> DeviceManagerResult<()> {
let memory = self.memory_manager.lock().unwrap().guest_memory();
for (virtio_device, _, _) in self.virtio_devices.iter() {
virtio_device
.lock()
.unwrap()
.update_memory(&memory.memory())
.add_memory_region(new_region)
.map_err(DeviceManagerError::UpdateMemoryForVirtioDevice)?;
}