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vfio: Add a public function to retrive VFIO container

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The VFIO container is the object needed to update the VFIO mapping
associated with a VFIO device. This patch allows the device manager
to have access to the VFIO container.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf 2019-10-07 10:20:35 -07:00 committed by Samuel Ortiz
parent 34bb31791b
commit 3598e603d5
2 changed files with 11 additions and 5 deletions
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14
vfio/src/vfio_device.rs
View File

@ -103,7 +103,7 @@ struct vfio_region_info_with_cap {
cap_info: __IncompleteArrayField<u8>,
}
struct VfioContainer {
pub struct VfioContainer {
container: File,
}
@ -151,7 +151,7 @@ impl VfioContainer {
Ok(())
}
fn vfio_dma_map(&self, iova: u64, size: u64, user_addr: u64) -> Result<()> {
pub fn vfio_dma_map(&self, iova: u64, size: u64, user_addr: u64) -> Result<()> {
let dma_map = vfio_iommu_type1_dma_map {
argsz: mem::size_of::<vfio_iommu_type1_dma_map>() as u32,
flags: VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,
@ -170,7 +170,7 @@ impl VfioContainer {
Ok(())
}
fn vfio_dma_unmap(&self, iova: u64, size: u64) -> Result<()> {
pub fn vfio_dma_unmap(&self, iova: u64, size: u64) -> Result<()> {
let mut dma_unmap = vfio_iommu_type1_dma_unmap {
argsz: mem::size_of::<vfio_iommu_type1_dma_unmap>() as u32,
flags: 0,
@ -198,7 +198,7 @@ impl AsRawFd for VfioContainer {
struct VfioGroup {
group: File,
device: Arc<DeviceFd>,
container: VfioContainer,
container: Arc<VfioContainer>,
}
impl VfioGroup {
@ -225,7 +225,7 @@ impl VfioGroup {
return Err(VfioError::GroupViable);
}
let container = VfioContainer::new()?;
let container = Arc::new(VfioContainer::new()?);
if container.get_api_version() as u32 != VFIO_API_VERSION {
return Err(VfioError::VfioApiVersion);
}
@ -762,6 +762,10 @@ impl VfioDevice {
}
}
pub fn get_container(&self) -> Arc<VfioContainer> {
self.group.container.clone()
}
fn vfio_dma_map(&self, iova: u64, size: u64, user_addr: u64) -> Result<()> {
self.group.container.vfio_dma_map(iova, size, user_addr)
}

2
vmm/src/device_manager.rs
View File

@ -1006,6 +1006,8 @@ impl DeviceManager {
VfioDevice::new(&device_cfg.path, device_fd.clone(), vm_info.memory.clone())
.map_err(DeviceManagerError::VfioCreate)?;
let _vfio_container = vfio_device.get_container();
let mut vfio_pci_device = VfioPciDevice::new(vm_info.vm_fd, allocator, vfio_device)
.map_err(DeviceManagerError::VfioPciCreate)?;