[Buildroot] [PATCH v2 2/2] configs/qemu_riscv64_virt_efi: new defconfig
Yann E. MORIN
yann.morin.1998 at free.fr
Sun Dec 24 16:57:24 UTC 2023
Julien, All,
On 2023-12-23 22:29 +0100, Julien Olivain spake thusly:
> This defconfig enables edk2 UEFI shell and grub2 riscv64-efi boot
> of a Linux Kernel.
>
> Signed-off-by: Julien Olivain <ju.o at free.fr>
After tracking the EDK2 build issue with per-package the whole day, and
conluding that it was not specific to this defconfig, I applied to
master, thanks!
Regards,
Yann E. MORIN.
> ---
> Changes v1 -> v2:
> - Remove BR2_TOOLCHAIN_EXTERNAL=y in defconfig.
> (it was an incorrect leftover from a test)
> - Add BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_1 in defconfig.
>
> Patch series tested on branch master at commit 1667987 with commands:
>
> make check-package
> ...
> 0 warnings generated
>
> make qemu_riscv64_virt_efi_defconfig
> make
> output/images/start-qemu.sh
>
> Once logged as root in emulator:
>
> dmesg | grep -i efi
> mount -t efivarfs efivarfs /sys/firmware/efi/efivars
> ls -al /sys/firmware/efi/efivars
> ---
> DEVELOPERS | 2 ++
> .../riscv64-virt-efi/assemble-flash-images | 11 ++++++
> board/qemu/riscv64-virt-efi/genimage.cfg | 34 ++++++++++++++++++
> board/qemu/riscv64-virt-efi/grub.cfg | 6 ++++
> board/qemu/riscv64-virt-efi/readme.txt | 36 +++++++++++++++++++
> configs/qemu_riscv64_virt_efi_defconfig | 19 ++++++++++
> 6 files changed, 108 insertions(+)
> create mode 100755 board/qemu/riscv64-virt-efi/assemble-flash-images
> create mode 100644 board/qemu/riscv64-virt-efi/genimage.cfg
> create mode 100644 board/qemu/riscv64-virt-efi/grub.cfg
> create mode 100644 board/qemu/riscv64-virt-efi/readme.txt
> create mode 100644 configs/qemu_riscv64_virt_efi_defconfig
>
> diff --git a/DEVELOPERS b/DEVELOPERS
> index bad07d51aa..cfd8b7bd8f 100644
> --- a/DEVELOPERS
> +++ b/DEVELOPERS
> @@ -1713,11 +1713,13 @@ F: configs/ts7680_defconfig
> F: package/paho-mqtt-c
>
> N: Julien Olivain <ju.o at free.fr>
> +F: board/qemu/riscv64-virt-efi/
> F: board/spike/
> F: board/technexion/imx8mmpico/
> F: board/technexion/imx8mpico/
> F: configs/imx8mmpico_defconfig
> F: configs/imx8mpico_defconfig
> +F: configs/qemu_riscv64_virt_efi_defconfig
> F: configs/spike_riscv64_defconfig
> F: package/fluid-soundfont/
> F: package/fluidsynth/
> diff --git a/board/qemu/riscv64-virt-efi/assemble-flash-images b/board/qemu/riscv64-virt-efi/assemble-flash-images
> new file mode 100755
> index 0000000000..abcaa2c93b
> --- /dev/null
> +++ b/board/qemu/riscv64-virt-efi/assemble-flash-images
> @@ -0,0 +1,11 @@
> +#! /bin/sh
> +
> +set -e
> +
> +BOARD_DIR="$(dirname "$0")"
> +
> +cp -f "${BOARD_DIR}"/grub.cfg "${BINARIES_DIR}"/efi-part/EFI/BOOT/grub.cfg
> +
> +# The QEMU riscv64 virt machine expects flash devices to be 32M.
> +truncate -s 32M "${BINARIES_DIR}"/RISCV_VIRT_CODE.fd
> +truncate -s 32M "${BINARIES_DIR}"/RISCV_VIRT_VARS.fd
> diff --git a/board/qemu/riscv64-virt-efi/genimage.cfg b/board/qemu/riscv64-virt-efi/genimage.cfg
> new file mode 100644
> index 0000000000..46950591e0
> --- /dev/null
> +++ b/board/qemu/riscv64-virt-efi/genimage.cfg
> @@ -0,0 +1,34 @@
> +image efi-part.vfat {
> + vfat {
> + file EFI {
> + image = "efi-part/EFI"
> + }
> +
> + file Image {
> + image = "Image"
> + }
> + }
> +
> + size = 64M
> +}
> +
> +image disk.img {
> + hdimage {
> + partition-table-type = "gpt"
> + }
> +
> + partition boot {
> + image = "efi-part.vfat"
> + partition-type-uuid = U
> + offset = 32K
> + bootable = true
> + }
> +
> + partition root {
> + # For partition-type-uuid value, see:
> + # https://uapi-group.org/specifications/specs/discoverable_partitions_specification/
> + # SD_GPT_ROOT_RISCV64
> + partition-type-uuid = 72ec70a6-cf74-40e6-bd49-4bda08e8f224
> + image = "rootfs.ext2"
> + }
> +}
> diff --git a/board/qemu/riscv64-virt-efi/grub.cfg b/board/qemu/riscv64-virt-efi/grub.cfg
> new file mode 100644
> index 0000000000..d99e19c4cd
> --- /dev/null
> +++ b/board/qemu/riscv64-virt-efi/grub.cfg
> @@ -0,0 +1,6 @@
> +set default="0"
> +set timeout="5"
> +
> +menuentry "Buildroot" {
> + linux /Image root=PARTLABEL=root rootwait
> +}
> diff --git a/board/qemu/riscv64-virt-efi/readme.txt b/board/qemu/riscv64-virt-efi/readme.txt
> new file mode 100644
> index 0000000000..6b9651a011
> --- /dev/null
> +++ b/board/qemu/riscv64-virt-efi/readme.txt
> @@ -0,0 +1,36 @@
> +Intro
> +=====
> +
> +This is a RISC-V 64bit UEFI Linux boot demo in QEmu virt machine.
> +
> +Build
> +=====
> +
> + make qemu_riscv64_virt_efi_defconfig
> + make
> +
> +Emulation
> +=========
> +
> +Run the emulation with:
> +
> + qemu-system-riscv64 \
> + -M virt,pflash0=pflash0,pflash1=pflash1,acpi=off \
> + -smp 4 \
> + -m 1024 \
> + -nographic \
> + -blockdev node-name=pflash0,driver=file,read-only=on,filename=output/images/RISCV_VIRT_CODE.fd \
> + -blockdev node-name=pflash1,driver=file,filename=output/images/RISCV_VIRT_VARS.fd \
> + \
> + -drive file=output/images/disk.img,format=raw,id=hd0 \
> + -device virtio-blk-device,drive=hd0 \
> + \
> + -netdev user,id=net0 \
> + -device virtio-net-device,netdev=net0 # qemu_riscv64_virt_efi_defconfig
> +
> +Note: for information, qemu version >= 8.0.0 is needed for this UEFI
> +Linux demo. It introduced the two pflash memories (previous versions
> +had only one). The host-qemu package in Buildroot (enabled in this
> +defconfig) is sufficient to run this demo. In case another qemu is
> +used (for example, from the host OS), make sure to check the version
> +requirement.
> diff --git a/configs/qemu_riscv64_virt_efi_defconfig b/configs/qemu_riscv64_virt_efi_defconfig
> new file mode 100644
> index 0000000000..79aadf78ca
> --- /dev/null
> +++ b/configs/qemu_riscv64_virt_efi_defconfig
> @@ -0,0 +1,19 @@
> +BR2_riscv=y
> +BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_1=y
> +BR2_SYSTEM_DHCP="eth0"
> +BR2_ROOTFS_POST_IMAGE_SCRIPT="board/qemu/post-image.sh board/qemu/riscv64-virt-efi/assemble-flash-images support/scripts/genimage.sh"
> +BR2_ROOTFS_POST_SCRIPT_ARGS="$(BR2_DEFCONFIG) -c board/qemu/riscv64-virt-efi/genimage.cfg"
> +BR2_LINUX_KERNEL=y
> +BR2_LINUX_KERNEL_CUSTOM_VERSION=y
> +BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.69"
> +BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
> +BR2_TARGET_ROOTFS_EXT2=y
> +# BR2_TARGET_ROOTFS_TAR is not set
> +BR2_TARGET_EDK2=y
> +BR2_TARGET_GRUB2=y
> +BR2_TARGET_GRUB2_RISCV64_EFI=y
> +BR2_PACKAGE_HOST_DOSFSTOOLS=y
> +BR2_PACKAGE_HOST_GENIMAGE=y
> +BR2_PACKAGE_HOST_MTOOLS=y
> +BR2_PACKAGE_HOST_QEMU=y
> +BR2_PACKAGE_HOST_QEMU_SYSTEM_MODE=y
> --
> 2.43.0
>
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