Merge pull request #2496 from rapiz1/show-guest-protection

cli: Show available guest protection in env output

src/runtime/cmd/kata-runtime/kata-env.go

@@ -130,6 +130,7 @@ type DistroInfo struct {
 
 // HostInfo stores host details
 type HostInfo struct {
+	AvailableGuestProtections []string
 	Kernel                    string
 	Architecture              string
 	Distro                    DistroInfo
@@ -241,12 +242,15 @@ func getHostInfo() (HostInfo, error) {
 
 	memoryInfo := getMemoryInfo()
 
+	availableGuestProtection := vc.AvailableGuestProtections()
+
 	host := HostInfo{
 		Kernel:                    hostKernelVersion,
 		Architecture:              arch,
 		Distro:                    hostDistro,
 		CPU:                       hostCPU,
 		Memory:                    memoryInfo,
+		AvailableGuestProtections: availableGuestProtection,
 		VMContainerCapable:        hostVMContainerCapable,
 		SupportVSocks:             supportVSocks,
 	}

src/runtime/virtcontainers/qemu_arch_base.go

@@ -177,6 +177,30 @@ const (
 	seProtection //nolint
 )
 
+var guestProtectionStr = [...]string{
+	noneProtection: "none",
+	pefProtection:  "pef",
+	seProtection:   "se",
+	sevProtection:  "sev",
+	tdxProtection:  "tdx",
+}
+
+func (gp guestProtection) String() string {
+	return guestProtectionStr[gp]
+}
+
+func genericAvailableGuestProtections() (protections []string) {
+	return
+}
+
+func AvailableGuestProtections() (protections []string) {
+	gp, err := availableGuestProtection()
+	if err != nil || gp == noneProtection {
+		return genericAvailableGuestProtections()
+	}
+	return []string{gp.String()}
+}
+
 type qemuArchBase struct {
 	qemuExePath          string
 	qemuMachine          govmmQemu.Machine