initdata: add initdata annotation in hypervisor config

- Add Initdata annotation for hypervisor config, so that it can be passed when CreateVM

Signed-off-by: Qi Feng Huo <huoqif@cn.ibm.com>

src/runtime/pkg/oci/utils.go

@@ -542,6 +542,9 @@ func addHypervisorConfigOverrides(ocispec specs.Spec, config *vc.SandboxConfig,
 
 		config.HypervisorConfig.SGXEPCSize = size
 	}
+	if initdata, ok := ocispec.Annotations[vcAnnotations.Initdata]; ok {
+		config.HypervisorConfig.Initdata = initdata
+	}
 
 	return nil
 }

src/runtime/virtcontainers/hypervisor.go

@@ -680,6 +680,9 @@ type HypervisorConfig struct {
 
 	// QgsPort defines Intel Quote Generation Service port exposed from the host
 	QgsPort uint32
+
+	// Initdata defines the initdata passed into guest when CreateVM
+	Initdata string
 }
 
 // vcpu mapping from vcpu number to thread number

src/runtime/virtcontainers/pkg/annotations/annotations.go

@@ -243,6 +243,9 @@ const (
 
 	// EnableRootlessHypervisor is a sandbox annotation to enable rootless hypervisor (only supported in QEMU currently).
 	EnableRootlessHypervisor = kataAnnotHypervisorPrefix + "rootless"
+
+	// Initdata is the initdata passed in when CreateVM
+	Initdata = kataConfAnnotationsPrefix + "runtime.cc_init_data"
 )
 
 // Runtime related annotations

src/runtime/virtcontainers/remote.go

@@ -79,6 +79,7 @@ func (rh *remoteHypervisor) CreateVM(ctx context.Context, id string, network Net
 	annotations[hypannotations.MachineType] = hypervisorConfig.HypervisorMachineType
 	annotations[hypannotations.DefaultVCPUs] = strconv.FormatUint(uint64(hypervisorConfig.NumVCPUs()), 10)
 	annotations[hypannotations.DefaultMemory] = strconv.FormatUint(uint64(hypervisorConfig.MemorySize), 10)
+	annotations[hypannotations.Initdata] = hypervisorConfig.Initdata
 
 	req := &pb.CreateVMRequest{
 		Id:                   id,