Keep the custom CPU model

pkg/controller/plan/adapter/ovirt/builder.go

@@ -391,7 +391,23 @@ func (r *Builder) mapCPU(vm *model.Workload, object *cnv.VirtualMachineSpec) {
 	if vm.CpuPinningPolicy == model.Dedicated {
 		object.Template.Spec.Domain.CPU.DedicatedCPUPlacement = true
 	}
+	if vm.CustomCpuModel != "" {
+		r.setCpuFlags(vm.CustomCpuModel, object)
+	}
+}
 
+func (r *Builder) setCpuFlags(fullCpu string, object *cnv.VirtualMachineSpec) {
+	cpuTypeAndFlags := strings.Split(fullCpu, ",")
+	object.Template.Spec.Domain.CPU.Model = cpuTypeAndFlags[0]
+	for _, val := range cpuTypeAndFlags[1:] {
+		if flag, found := strings.CutPrefix(val, "+"); found {
+			object.Template.Spec.Domain.CPU.Features = append(object.Template.Spec.Domain.CPU.Features, cnv.CPUFeature{Name: flag, Policy: "require"})
+		} else if flag, found = strings.CutPrefix(val, "-"); found {
+			object.Template.Spec.Domain.CPU.Features = append(object.Template.Spec.Domain.CPU.Features, cnv.CPUFeature{Name: flag, Policy: "disable"})
+		} else {
+			object.Template.Spec.Domain.CPU.Features = append(object.Template.Spec.Domain.CPU.Features, cnv.CPUFeature{Name: flag})
+		}
+	}
 }
 
 func (r *Builder) mapFirmware(vm *model.Workload, cluster *model.Cluster, object *cnv.VirtualMachineSpec) {

pkg/controller/provider/container/ovirt/resource.go

@@ -238,7 +238,8 @@ type VM struct {
 			Enabled string `json:"enabled"`
 		} `json:"boot_menu"`
 	} `json:"bios"`
-	Display struct {
+	CustomCpuModel string `json:"custom_cpu_model"`
+	Display        struct {
 		Type string `json:"type"`
 	} `json:"display"`
 	HasIllegalImages string `json:"has_illegal_images"`
@@ -358,6 +359,7 @@ func (r *VM) ApplyTo(m *model.VM) {
 	m.StorageErrorResumeBehaviour = r.StorageErrorResumeBehaviour
 	m.HaEnabled = r.bool(r.HA.Enabled)
 	m.IOThreads = r.int16(r.IO.Threads)
+	m.CustomCpuModel = r.CustomCpuModel
 	r.addCpuAffinity(m)
 	r.addNICs(m)
 	r.addDiskAttachment(m)

pkg/controller/provider/model/ovirt/model.go

@@ -155,6 +155,7 @@ type VM struct {
 	Concerns                    []Concern        `sql:"" eq:"-"`
 	Guest                       Guest            `sql:""`
 	OSType                      string           `sql:""`
+	CustomCpuModel              string           `sql:""`
 }
 
 // Determine if current revision has been validated.

pkg/controller/provider/web/ovirt/vm.go

@@ -253,6 +253,7 @@ type VM struct {
 	Snapshots                   []Snapshot       `json:"snapshots"`
 	Guest                       Guest            `json:"guest"`
 	OSType                      string           `json:"osType"`
+	CustomCpuModel              string           `json:"customCpuModel"`
 }
 
 type VNIC = model.NIC
@@ -303,6 +304,7 @@ func (r *VM) With(m *model.VM) {
 	r.Snapshots = m.Snapshots
 	r.Guest = m.Guest
 	r.OSType = m.OSType
+	r.CustomCpuModel = m.CustomCpuModel
 }
 
 // Build self link (URI).

validation/policies/io/konveyor/forklift/ovirt/cpu_custom_model.rego

@@ -0,0 +1,16 @@
+package io.konveyor.forklift.ovirt
+
+default custom_cpu_model = false
+
+custom_cpu_model = true {
+    count(input.customCpuModel) != 0
+}
+
+concerns[flag] {
+    custom_cpu_model
+    flag := {
+        "category": "Warning",
+        "label": "Custom CPU Model detected",
+        "assessment": "The VM is configured with a custom CPU model. This configuration will apply to the migrated VM and may not be supported by OpenShift Virtualization."
+    }
+}

validation/policies/io/konveyor/forklift/ovirt/cpu_custom_model_test.rego

@@ -0,0 +1,15 @@
+package io.konveyor.forklift.ovirt
+
+test_without_customcpu {
+    mock_vm := { "name": "test" }
+    results = concerns with input as mock_vm
+    count(results) == 0
+}
+
+test_with_customcpu {
+    mock_vm := { "name": "test",
+                 "customCpuModel": "Icelake-Server-noTSX,-mpx"
+                }
+    results = concerns with input as mock_vm
+    count(results) == 1
+}