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hypervisor: Support creating a VM of a specified KVM type

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This is necessary to support creating a TD VM.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford
2021-02-23 14:19:32 +00:00
parent 57ce0986f7
commit 1c54fc3ab7
2 changed files with 22 additions and 5 deletions
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20
hypervisor/src/kvm/mod.rs
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@@ -521,18 +521,18 @@ impl KvmHypervisor {
/// let vm = hypervisor.create_vm().expect("new VM fd creation failed");
///
impl hypervisor::Hypervisor for KvmHypervisor {
/// Create a KVM vm object and return the object as Vm trait object
/// Create a KVM vm object of a specific VM type and return the object as Vm trait object
/// Example
/// # extern crate hypervisor;
/// # use hypervisor::KvmHypervisor;
/// use hypervisor::KvmVm;
/// let hypervisor = KvmHypervisor::new().unwrap();
/// let vm = hypervisor.create_vm().unwrap()
/// let vm = hypervisor.create_vm_with_type(KvmVmType::LegacyVm).unwrap()
///
fn create_vm(&self) -> hypervisor::Result<Arc<dyn vm::Vm>> {
fn create_vm_with_type(&self, vm_type: u64) -> hypervisor::Result<Arc<dyn vm::Vm>> {
let fd: VmFd;
loop {
match self.kvm.create_vm() {
match self.kvm.create_vm_with_type(vm_type) {
Ok(res) => fd = res,
Err(e) => {
if e.errno() == libc::EINTR {
@@ -577,6 +577,18 @@ impl hypervisor::Hypervisor for KvmHypervisor {
}
}
/// Create a KVM vm object and return the object as Vm trait object
/// Example
/// # extern crate hypervisor;
/// # use hypervisor::KvmHypervisor;
/// use hypervisor::KvmVm;
/// let hypervisor = KvmHypervisor::new().unwrap();
/// let vm = hypervisor.create_vm().unwrap()
///
fn create_vm(&self) -> hypervisor::Result<Arc<dyn vm::Vm>> {
self.create_vm_with_type(0) // Create with default platform type
}
fn check_required_extensions(&self) -> hypervisor::Result<()> {
check_required_kvm_extensions(&self.kvm).expect("Missing KVM capabilities");
Ok(())