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pci: vfio: Add trait for accessing VFIO PCI device config

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Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2021-07-06 13:23:49 +00:00 committed by Sebastien Boeuf
parent 9e0f402e27
commit 349dbb9aac
1 changed files with 25 additions and 5 deletions
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30
pci/src/vfio.rs
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@ -245,15 +245,35 @@ pub struct MmioRegion {
mmap_size: Option<usize>,
}
struct VfioPciConfig {
trait VfioPciConfig {
fn read_config_byte(&self, _offset: u32) -> u8 {
unimplemented!()
}
fn read_config_word(&self, _offset: u32) -> u16 {
unimplemented!()
}
fn read_config_dword(&self, _offset: u32) -> u32 {
unimplemented!()
}
fn write_config_dword(&self, _buf: u32, _offset: u32) {
unimplemented!()
}
}
struct VfioPciDeviceConfig {
device: Arc<VfioDevice>,
}
impl VfioPciConfig {
impl VfioPciDeviceConfig {
fn new(device: Arc<VfioDevice>) -> Self {
VfioPciConfig { device }
Self { device }
}
}
impl VfioPciConfig for VfioPciDeviceConfig {
fn read_config_byte(&self, offset: u32) -> u8 {
let mut data: [u8; 1] = [0];
self.device
@ -295,7 +315,7 @@ pub struct VfioPciDevice {
vm: Arc<dyn hypervisor::Vm>,
device: Arc<VfioDevice>,
container: Arc<VfioContainer>,
vfio_pci_configuration: VfioPciConfig,
vfio_pci_configuration: VfioPciDeviceConfig,
configuration: PciConfiguration,
mmio_regions: Vec<MmioRegion>,
interrupt: Interrupt,
@ -328,7 +348,7 @@ impl VfioPciDevice {
None,
);
let vfio_pci_configuration = VfioPciConfig::new(Arc::clone(&device));
let vfio_pci_configuration = VfioPciDeviceConfig::new(Arc::clone(&device));
let mut vfio_pci_device = VfioPciDevice {
vm: vm.clone(),