Deprecate xen from SDKs and Tools

Author: mgwoj

docs/data-sources/kernel.md

@@ -41,4 +41,4 @@ The Linode Kernel resource exports the following attributes:
 
 * `version` - Linux Kernel version
 
-* `xen` - If this Kernel is suitable for Xen Linodes.
+* `xen` - (Deprecated) If this Kernel is suitable for Xen Linodes.

docs/data-sources/kernels.md

@@ -63,7 +63,7 @@ Each Linode Kernel will be stored in the `kernel` attribute and will export the
 
 * `version` - Linux Kernel version
 
-* `xen` - If this Kernel is suitable for Xen Linodes.
+* `xen` - (Deprecated) If this Kernel is suitable for Xen Linodes.
 
 ## Filterable Fields
 
@@ -81,4 +81,4 @@ Each Linode Kernel will be stored in the `kernel` attribute and will export the
 
 * `version`
 
-* `xen`
+* `xen` (Deprecated)

linode/kernel/framework_datasource_schema.go

@@ -40,8 +40,9 @@ var KernelAttributes = map[string]schema.Attribute{
 		Computed:    true,
 	},
 	"xen": schema.BoolAttribute{
-		Description: "If this Kernel is suitable for Xen Linodes.",
-		Computed:    true,
+		Description:        "If this Kernel is suitable for Xen Linodes.",
+		DeprecationMessage: "This field is no longer populated by the API, but it is included here for backward compatibility with existing implementations.",
+		Computed:           true,
 	},
 }
 

linode/kernel/framework_models.go

@@ -17,10 +17,11 @@ type DataSourceModel struct {
 	Label        types.String      `tfsdk:"label"`
 	PVOPS        types.Bool        `tfsdk:"pvops"`
 	Version      types.String      `tfsdk:"version"`
-	XEN          types.Bool        `tfsdk:"xen"`
+	// deprecated: this field is no longer populated by the API, but it is included here for backward compatibility with existing implementations.
+	XEN types.Bool `tfsdk:"xen"`
 }
 
-func (data *DataSourceModel) ParseKernel(ctx context.Context, kernel *linodego.LinodeKernel) {
+func (data *DataSourceModel) ParseKernel(_ context.Context, kernel *linodego.LinodeKernel) {
 	data.ID = types.StringValue(kernel.ID)
 	data.Architecture = types.StringValue(kernel.Architecture)
 	data.Built = timetypes.NewRFC3339TimePointerValue(kernel.Built)