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hypervisor: Extend hypervisor crate with Device trait

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Added Device trait and KvmDevice struct for KVM-emulated devices.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
This commit is contained in:
Michael Zhao
2020-07-16 22:50:36 +08:00
committed by Samuel Ortiz
parent e3e771727a
commit e7288888cf
4 changed files with 71 additions and 5 deletions
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3
hypervisor/src/vm.rs
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@@ -11,6 +11,7 @@
#[cfg(target_arch = "aarch64")]
use crate::aarch64::VcpuInit;
use crate::cpu::Vcpu;
use crate::device::Device;
#[cfg(target_arch = "x86_64")]
use crate::ClockData;
use crate::{CreateDevice, DeviceFd, IoEventAddress, IrqRoutingEntry, MemoryRegion};
@@ -161,7 +162,7 @@ pub trait Vm: Send + Sync {
/// Creates/modifies a guest physical memory slot.
fn set_user_memory_region(&self, user_memory_region: MemoryRegion) -> Result<()>;
/// Creates an emulated device in the kernel.
fn create_device(&self, device: &mut CreateDevice) -> Result<DeviceFd>;
fn create_device(&self, device: &mut CreateDevice) -> Result<Arc<dyn Device>>;
/// Returns the preferred CPU target type which can be emulated by KVM on underlying host.
#[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
fn get_preferred_target(&self, kvi: &mut VcpuInit) -> Result<()>;