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kernel: support build guest kernel for gpu
Add option '-g' in build-kernel.sh to build a guest kernel that supports Intel/Nvidia GPU Fixes: #979 Signed-off-by: Jimmy Xu <junming.xjm@antfin.com>
This commit is contained in:
Jimmy Xu
parent
3b88f2cd0f
commit
d248e4144c
@ -39,10 +39,16 @@ readonly default_kernel_config_dir="${GOPATH}/src/${kernel_config_repo}/kernel/c
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# Default path to search for kernel config fragments
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readonly default_config_frags_dir="${GOPATH}/src/${kernel_config_repo}/kernel/configs/fragments"
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readonly default_config_whitelist="${GOPATH}/src/${kernel_config_repo}/kernel/configs/fragments/whitelist.conf"
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# GPU vendor
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readonly GV_INTEL="intel"
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readonly GV_NVIDIA="nvidia"
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#Path to kernel directory
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kernel_path=""
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#Experimental kernel support. Pull from virtio-fs GitLab instead of kernel.org
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experimental_kernel="false"
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#GPU kernel support
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gpu_vendor=""
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#
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patches_path=""
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#
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@ -80,11 +86,12 @@ Commands:
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Options:
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-c <path>: Path to config file to build a the kernel.
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-c <path> : Path to config file to build a the kernel.
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-e : Enable experimental kernel.
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-g <vendor> : GPU vendor, intel or nvidia.
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-h : Display this help.
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-k <path>: Path to kernel to build.
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-p <path>: Path to a directory with patches to apply to kernel.
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-k <path> : Path to kernel to build.
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-p <path> : Path to a directory with patches to apply to kernel.
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-t : Hypervisor_target.
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-v : Kernel version to use if kernel path not provided.
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EOT
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@ -167,6 +174,8 @@ get_major_kernel_version() {
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get_kernel_frag_path() {
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local arch_path="$1"
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local common_path="${arch_path}/../common"
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local gpu_path="${arch_path}/../gpu"
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local kernel_path="$2"
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local cmdpath="${kernel_path}/scripts/kconfig/merge_config.sh"
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local config_path="${arch_path}/.config"
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@ -190,6 +199,12 @@ get_kernel_frag_path() {
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all_configs="${all_configs} ${experimental_configs}"
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fi
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if [[ "${gpu_vendor}" != "" ]];then
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info "Add kernel config for GPU due to '-g ${gpu_vendor}'"
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local gpu_configs="$(ls ${gpu_path}/${gpu_vendor}.conf)"
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all_configs="${all_configs} ${gpu_configs}"
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fi
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info "Constructing config from fragments: ${config_path}"
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@ -365,8 +380,17 @@ install_kata() {
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config_version=$(get_config_version)
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[ -n "${config_version}" ] || die "failed to get config version"
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install_path=$(readlink -m "${DESTDIR}/${PREFIX}/share/${project_name}")
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vmlinuz="vmlinuz-${kernel_version}-${config_version}"
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vmlinux="vmlinux-${kernel_version}-${config_version}"
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suffix=""
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if [[ ${experimental_kernel} == "true" ]]; then
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suffix="-virtiofs"
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fi
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if [[ ${gpu_vendor} != "" ]];then
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suffix="-${gpu_vendor}-gpu${suffix}"
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fi
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vmlinuz="vmlinuz-${kernel_version}-${config_version}${suffix}"
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vmlinux="vmlinux-${kernel_version}-${config_version}${suffix}"
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if [ -e "arch/${arch_target}/boot/bzImage" ]; then
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bzImage="arch/${arch_target}/boot/bzImage"
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@ -392,21 +416,15 @@ install_kata() {
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install --mode 0644 -D ./.config "${install_path}/config-${kernel_version}"
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if [[ ${experimental_kernel} == "true" ]]; then
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sufix="-virtiofs.container"
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else
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sufix=".container"
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fi
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ln -sf "${vmlinuz}" "${install_path}/vmlinuz${sufix}"
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ln -sf "${vmlinux}" "${install_path}/vmlinux${sufix}"
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ls -la "${install_path}/vmlinux${sufix}"
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ls -la "${install_path}/vmlinuz${sufix}"
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ln -sf "${vmlinuz}" "${install_path}/vmlinuz${suffix}.container"
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ln -sf "${vmlinux}" "${install_path}/vmlinux${suffix}.container"
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ls -la "${install_path}/vmlinux${suffix}.container"
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ls -la "${install_path}/vmlinuz${suffix}.container"
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popd >>/dev/null
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}
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main() {
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while getopts "a:c:hk:p:t:v:e" opt; do
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while getopts "a:c:eg:hk:p:t:v:" opt; do
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case "$opt" in
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a)
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arch_target="${OPTARG}"
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@ -417,6 +435,10 @@ main() {
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e)
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experimental_kernel="true"
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;;
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g)
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gpu_vendor="${OPTARG}"
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[[ "${gpu_vendor}" == "${GV_INTEL}" || "${gpu_vendor}" == "${GV_NVIDIA}" ]] || die "GPU vendor only support intel and nvidia"
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;;
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h)
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usage 0
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;;
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7
kernel/configs/fragments/gpu/intel.conf
Normal file
7
kernel/configs/fragments/gpu/intel.conf
Normal file
@ -0,0 +1,7 @@
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# The following i915 kernel config options need to be enabled
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CONFIG_DRM=y
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CONFIG_DRM_I915=y
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CONFIG_DRM_I915_USERPTR=y
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# Linux kernel version suffix
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CONFIG_LOCALVERSION="-intel-gpu"
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14
kernel/configs/fragments/gpu/nvidia.conf
Normal file
14
kernel/configs/fragments/gpu/nvidia.conf
Normal file
@ -0,0 +1,14 @@
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# Support mmconfig PCI config space access.
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# It's used to enable the MMIO access method for PCIe devices.
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CONFIG_PCI_MMCONFIG=y
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# Support for loading modules.
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# It is used to support loading GPU drivers.
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CONFIG_MODULES=y
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CONFIG_MODULE_UNLOAD=y
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# CRYPTO_FIPS requires this config when loading modules is enabled.
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CONFIG_MODULE_SIG=y
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# Linux kernel version suffix
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CONFIG_LOCALVERSION="-nvidia-gpu"
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