1#
2# Copyright (C) 2023 The Android Open Source Project
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#      http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15#
16
17# we do NOT support OTA - suppress the build warning
18PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS := false
19
20# Use 16K page size kernel
21TARGET_KERNEL_USE := 6.6
22TARGET_KERNEL_ARCH := arm64
23KERNEL_ARTIFACTS_PATH := kernel/prebuilts/$(TARGET_KERNEL_USE)/$(TARGET_KERNEL_ARCH)/16k
24VIRTUAL_DEVICE_KERNEL_MODULES_PATH := \
25    kernel/prebuilts/common-modules/virtual-device/$(TARGET_KERNEL_USE)/$(subst _,-,$(TARGET_KERNEL_ARCH))/16k
26
27# The list of modules to reach the second stage. For performance reasons we
28# don't want to put all modules into the ramdisk.
29RAMDISK_KERNEL_MODULES := \
30    virtio_dma_buf.ko \
31    virtio_mmio.ko \
32    virtio-rng.ko \
33
34RAMDISK_SYSTEM_KERNEL_MODULES += \
35    virtio_blk.ko \
36    virtio_console.ko \
37    virtio_pci.ko \
38    virtio_pci_legacy_dev.ko \
39    virtio_pci_modern_dev.ko \
40    vmw_vsock_virtio_transport.ko \
41
42BOARD_SYSTEM_KERNEL_MODULES := $(wildcard $(KERNEL_ARTIFACTS_PATH)/*.ko)
43
44BOARD_VENDOR_RAMDISK_KERNEL_MODULES := \
45    $(wildcard $(patsubst %,$(VIRTUAL_DEVICE_KERNEL_MODULES_PATH)/%,$(RAMDISK_KERNEL_MODULES))) \
46    $(wildcard $(patsubst %,$(KERNEL_ARTIFACTS_PATH)/%,$(RAMDISK_SYSTEM_KERNEL_MODULES)))
47
48BOARD_VENDOR_KERNEL_MODULES := \
49    $(filter-out $(BOARD_VENDOR_RAMDISK_KERNEL_MODULES),\
50                 $(wildcard $(VIRTUAL_DEVICE_KERNEL_MODULES_PATH)/*.ko))
51
52BOARD_VENDOR_KERNEL_MODULES_BLOCKLIST_FILE := \
53    device/generic/goldfish/board/kernel/kernel_modules.blocklist
54
55BOARD_DO_NOT_STRIP_VENDOR_RAMDISK_MODULES := true
56
57EMULATOR_KERNEL_FILE := $(KERNEL_ARTIFACTS_PATH)/kernel-$(TARGET_KERNEL_USE)-gz
58
59# BOARD_KERNEL_CMDLINE is not supported (b/361341981), use the file below
60PRODUCT_COPY_FILES += \
61    device/generic/goldfish/board/kernel/arm64_16k_cmdline.txt:kernel_cmdline.txt
62