diff --git a/api/gen/chromiumos/common_pb2.py b/api/gen/chromiumos/common_pb2.py
index 96c0b01..179d8e3 100644
--- a/api/gen/chromiumos/common_pb2.py
+++ b/api/gen/chromiumos/common_pb2.py
@@ -20,7 +20,7 @@
   package='chromiumos',
   syntax='proto3',
   serialized_options=_b('Z4go.chromium.org/chromiumos/infra/proto/go/chromiumos'),
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 )
 
 _IMAGETYPE = _descriptor.EnumDescriptor(
@@ -81,11 +81,15 @@
       name='DLC', index=12, number=12,
       serialized_options=None,
       type=None),
+    _descriptor.EnumValueDescriptor(
+      name='GSC_FIRMWARE', index=13, number=13,
+      serialized_options=None,
+      type=None),
   ],
   containing_type=None,
   serialized_options=None,
   serialized_start=6611,
-  serialized_end=6810,
+  serialized_end=6828,
 )
 _sym_db.RegisterEnumDescriptor(_IMAGETYPE)
 
@@ -119,8 +123,8 @@
   ],
   containing_type=None,
   serialized_options=None,
-  serialized_start=6812,
-  serialized_end=6921,
+  serialized_start=6830,
+  serialized_end=6939,
 )
 _sym_db.RegisterEnumDescriptor(_CHANNEL)
 
@@ -158,8 +162,8 @@
   ],
   containing_type=None,
   serialized_options=None,
-  serialized_start=6923,
-  serialized_end=7022,
+  serialized_start=6941,
+  serialized_end=7040,
 )
 _sym_db.RegisterEnumDescriptor(_DELTATYPE)
 
@@ -193,8 +197,8 @@
   ],
   containing_type=None,
   serialized_options=None,
-  serialized_start=7024,
-  serialized_end=7126,
+  serialized_start=7042,
+  serialized_end=7144,
 )
 _sym_db.RegisterEnumDescriptor(_AFDOARTIFACTTYPE)
 
@@ -212,6 +216,7 @@
 BASE_GUEST_VM = 10
 TEST_GUEST_VM = 11
 DLC = 12
+GSC_FIRMWARE = 13
 CHANNEL_UNSPECIFIED = 0
 CHANNEL_STABLE = 1
 CHANNEL_BETA = 2
diff --git a/api/gen/chromiumos/sign_image_pb2.py b/api/gen/chromiumos/sign_image_pb2.py
index 46bc8cc..9549a27 100644
--- a/api/gen/chromiumos/sign_image_pb2.py
+++ b/api/gen/chromiumos/sign_image_pb2.py
@@ -20,7 +20,7 @@
   package='chromiumos',
   syntax='proto3',
   serialized_options=_b('Z4go.chromium.org/chromiumos/infra/proto/go/chromiumos'),
-  serialized_pb=_b('\n\x1b\x63hromiumos/sign_image.proto\x12\nchromiumos\"\xbe\x01\n\x10\x43r50Instructions\x12\x33\n\x06target\x18\x01 \x01(\x0e\x32#.chromiumos.Cr50Instructions.Target\x12\x11\n\tdevice_id\x18\x02 \x01(\t\"b\n\x06Target\x12\x0f\n\x0bUNSPECIFIED\x10\x00\x12\n\n\x06PREPVT\x10\x01\x12\x15\n\x11RELEASE_CANDIDATE\x10\x02\x12\x0f\n\x0bNODE_LOCKED\x10\x03\x12\x13\n\x0fGENERAL_RELEASE\x10\x04*_\n\nSignerType\x12\x16\n\x12SIGNER_UNSPECIFIED\x10\x00\x12\x15\n\x11SIGNER_PRODUCTION\x10\x01\x12\x12\n\x0eSIGNER_STAGING\x10\x02\x12\x0e\n\nSIGNER_DEV\x10\x03\x42\x36Z4go.chromium.org/chromiumos/infra/proto/go/chromiumosb\x06proto3')
+  serialized_pb=_b('\n\x1b\x63hromiumos/sign_image.proto\x12\nchromiumos\"\xbe\x01\n\x10\x43r50Instructions\x12\x33\n\x06target\x18\x01 \x01(\x0e\x32#.chromiumos.Cr50Instructions.Target\x12\x11\n\tdevice_id\x18\x02 \x01(\t\"b\n\x06Target\x12\x0f\n\x0bUNSPECIFIED\x10\x00\x12\n\n\x06PREPVT\x10\x01\x12\x15\n\x11RELEASE_CANDIDATE\x10\x02\x12\x0f\n\x0bNODE_LOCKED\x10\x03\x12\x13\n\x0fGENERAL_RELEASE\x10\x04\"\xbc\x01\n\x0fGscInstructions\x12\x32\n\x06target\x18\x01 \x01(\x0e\x32\".chromiumos.GscInstructions.Target\x12\x11\n\tdevice_id\x18\x02 \x01(\t\"b\n\x06Target\x12\x0f\n\x0bUNSPECIFIED\x10\x00\x12\n\n\x06PREPVT\x10\x01\x12\x15\n\x11RELEASE_CANDIDATE\x10\x02\x12\x0f\n\x0bNODE_LOCKED\x10\x03\x12\x13\n\x0fGENERAL_RELEASE\x10\x04*_\n\nSignerType\x12\x16\n\x12SIGNER_UNSPECIFIED\x10\x00\x12\x15\n\x11SIGNER_PRODUCTION\x10\x01\x12\x12\n\x0eSIGNER_STAGING\x10\x02\x12\x0e\n\nSIGNER_DEV\x10\x03\x42\x36Z4go.chromium.org/chromiumos/infra/proto/go/chromiumosb\x06proto3')
 )
 
 _SIGNERTYPE = _descriptor.EnumDescriptor(
@@ -48,8 +48,8 @@
   ],
   containing_type=None,
   serialized_options=None,
-  serialized_start=236,
-  serialized_end=331,
+  serialized_start=427,
+  serialized_end=522,
 )
 _sym_db.RegisterEnumDescriptor(_SIGNERTYPE)
 
@@ -94,6 +94,40 @@
 )
 _sym_db.RegisterEnumDescriptor(_CR50INSTRUCTIONS_TARGET)
 
+_GSCINSTRUCTIONS_TARGET = _descriptor.EnumDescriptor(
+  name='Target',
+  full_name='chromiumos.GscInstructions.Target',
+  filename=None,
+  file=DESCRIPTOR,
+  values=[
+    _descriptor.EnumValueDescriptor(
+      name='UNSPECIFIED', index=0, number=0,
+      serialized_options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='PREPVT', index=1, number=1,
+      serialized_options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='RELEASE_CANDIDATE', index=2, number=2,
+      serialized_options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='NODE_LOCKED', index=3, number=3,
+      serialized_options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='GENERAL_RELEASE', index=4, number=4,
+      serialized_options=None,
+      type=None),
+  ],
+  containing_type=None,
+  serialized_options=None,
+  serialized_start=136,
+  serialized_end=234,
+)
+_sym_db.RegisterEnumDescriptor(_GSCINSTRUCTIONS_TARGET)
+
 
 _CR50INSTRUCTIONS = _descriptor.Descriptor(
   name='Cr50Instructions',
@@ -133,9 +167,51 @@
   serialized_end=234,
 )
 
+
+_GSCINSTRUCTIONS = _descriptor.Descriptor(
+  name='GscInstructions',
+  full_name='chromiumos.GscInstructions',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='target', full_name='chromiumos.GscInstructions.target', index=0,
+      number=1, type=14, cpp_type=8, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      serialized_options=None, file=DESCRIPTOR),
+    _descriptor.FieldDescriptor(
+      name='device_id', full_name='chromiumos.GscInstructions.device_id', index=1,
+      number=2, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      serialized_options=None, file=DESCRIPTOR),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+    _GSCINSTRUCTIONS_TARGET,
+  ],
+  serialized_options=None,
+  is_extendable=False,
+  syntax='proto3',
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=237,
+  serialized_end=425,
+)
+
 _CR50INSTRUCTIONS.fields_by_name['target'].enum_type = _CR50INSTRUCTIONS_TARGET
 _CR50INSTRUCTIONS_TARGET.containing_type = _CR50INSTRUCTIONS
+_GSCINSTRUCTIONS.fields_by_name['target'].enum_type = _GSCINSTRUCTIONS_TARGET
+_GSCINSTRUCTIONS_TARGET.containing_type = _GSCINSTRUCTIONS
 DESCRIPTOR.message_types_by_name['Cr50Instructions'] = _CR50INSTRUCTIONS
+DESCRIPTOR.message_types_by_name['GscInstructions'] = _GSCINSTRUCTIONS
 DESCRIPTOR.enum_types_by_name['SignerType'] = _SIGNERTYPE
 _sym_db.RegisterFileDescriptor(DESCRIPTOR)
 
@@ -146,6 +222,13 @@
   ))
 _sym_db.RegisterMessage(Cr50Instructions)
 
+GscInstructions = _reflection.GeneratedProtocolMessageType('GscInstructions', (_message.Message,), dict(
+  DESCRIPTOR = _GSCINSTRUCTIONS,
+  __module__ = 'chromiumos.sign_image_pb2'
+  # @@protoc_insertion_point(class_scope:chromiumos.GscInstructions)
+  ))
+_sym_db.RegisterMessage(GscInstructions)
+
 
 DESCRIPTOR._options = None
 # @@protoc_insertion_point(module_scope)