fix(host): hide kvm only gpu guests (#16974)

Signed-off-by: wanyaoqi <d3lx.yq@gmail.com>

pkg/hostman/guestman/arch/arch.go

@@ -40,6 +40,7 @@ type KVMGuestInstance interface {
 	CpuMax() (uint, error)
 	IsNestedVirt() bool
 	IsKvmSupport() bool
+	HideKVM() bool
 }
 
 func NewArch(arch string) Arch {

pkg/hostman/guestman/arch/x86.go

@@ -128,11 +128,7 @@ func (*X86) enableHypervFeatures(features map[string]bool) {
 }
 
 func (x86 *X86) GenerateCpuDesc(cpus uint, cpuMax uint, s KVMGuestInstance) (*desc.SGuestCpu, error) {
-	var hideKVM = true
-	if s.IsNestedVirt() {
-		hideKVM = false
-	}
-
+	var hideKVM = s.HideKVM()
 	var hostCPUPassthrough = options.HostOptions.HostCpuPassthrough
 	var isCPUIntel = sysutils.IsProcessorIntel()
 	var isCPUAMD = sysutils.IsProcessorAmd()

pkg/hostman/guestman/qemu-kvmhelper.go

@@ -130,6 +130,13 @@ func (s *SKVMGuestInstance) GetKernelVersion() string {
 	return s.manager.host.GetKernelVersion()
 }
 
+func (s *SKVMGuestInstance) HideKVM() bool {
+	if s.hasGPU() {
+		return true
+	}
+	return false
+}
+
 func (s *SKVMGuestInstance) CpuMax() (uint, error) {
 	cpuMax, ok := s.manager.qemuMachineCpuMax[s.Desc.Machine]
 	if !ok {
@@ -786,6 +793,17 @@ func (s *SKVMGuestInstance) gpusHasVga() bool {
 	return false
 }
 
+func (s *SKVMGuestInstance) hasGPU() bool {
+	manager := s.manager.GetHost().GetIsolatedDeviceManager()
+	for i := 0; i < len(s.Desc.IsolatedDevices); i++ {
+		dev := manager.GetDeviceByAddr(s.Desc.IsolatedDevices[i].Addr)
+		if dev.GetDeviceType() == api.GPU_VGA_TYPE || dev.GetDeviceType() == api.GPU_HPC_TYPE {
+			return true
+		}
+	}
+	return false
+}
+
 func (s *SKVMGuestInstance) initCpuDesc(cpuMax uint) error {
 	var err error
 	s.fixGuestMachineType()