Add spec version validation

Signed-off-by: Evan Lezar <elezar@nvidia.com>

pkg/cdi/spec.go

@@ -217,6 +217,15 @@ func (s *Spec) validate() (map[string]*Device, error) {
  if err := validateVersion(s.Version); err != nil {
  return nil, err
  }
+
+ minVersion, err := s.MinimumRequiredVersion()
+ if err != nil {
+ return nil, errors.Errorf("could not determine minumum required version: %v", err)
+ }
+ if semver.Compare("v"+s.Version, "v"+minVersion) < 0 {
+ return nil, errors.Errorf("the spec version must be at least v%v", minVersion)
+ }
+
  if err := ValidateVendorName(s.vendor); err != nil {
  return nil, err
  }