2018-09-27 00:37:18 +02:00
|
|
|
|
|
|
|
|
The aarch64_efi_defconfig allows to build a minimal Linux system that
|
2021-04-23 10:28:33 +02:00
|
|
|
can boot on all AArch64 servers providing an EFI firmware.
|
|
|
|
|
|
|
|
|
|
This includes all Arm EBBR[1] compliant systems, and all Arm SystemReady[2]
|
|
|
|
|
compliant systems for example.
|
|
|
|
|
|
2018-09-27 00:37:18 +02:00
|
|
|
|
|
|
|
|
Building and booting
|
|
|
|
|
====================
|
|
|
|
|
|
|
|
|
|
$ make aarch64_efi_defconfig
|
|
|
|
|
$ make
|
|
|
|
|
|
|
|
|
|
The file output/images/disk.img is a complete disk image that can be
|
|
|
|
|
booted, it includes the grub2 bootloader, Linux kernel and root
|
|
|
|
|
filesystem.
|
|
|
|
|
|
|
|
|
|
Testing under Qemu
|
|
|
|
|
==================
|
|
|
|
|
|
|
|
|
|
This image can also be tested using Qemu:
|
|
|
|
|
|
|
|
|
|
qemu-system-aarch64 \
|
|
|
|
|
-M virt \
|
|
|
|
|
-cpu cortex-a57 \
|
|
|
|
|
-m 512 \
|
|
|
|
|
-nographic \
|
|
|
|
|
-bios </path/to/QEMU_EFI.fd> \
|
|
|
|
|
-drive file=output/images/disk.img,if=none,format=raw,id=hd0 \
|
|
|
|
|
-device virtio-blk-device,drive=hd0 \
|
|
|
|
|
-netdev user,id=eth0 \
|
|
|
|
|
-device virtio-net-device,netdev=eth0
|
|
|
|
|
|
|
|
|
|
Note that </path/to/QEMU_EFI.fd> needs to point to a valid aarch64 UEFI
|
|
|
|
|
firmware image for qemu.
|
|
|
|
|
It may be provided by your distribution as a edk2-aarch64 or AAVMF
|
|
|
|
|
package, in path such as /usr/share/edk2/aarch64/QEMU_EFI.fd .
|
2021-04-23 10:28:33 +02:00
|
|
|
|
|
|
|
|
U-Boot based qemu firmware
|
|
|
|
|
==========================
|
|
|
|
|
|
|
|
|
|
A qemu firmware with support for UEFI based on U-Boot can be built following
|
|
|
|
|
the instructions in [3], with qemu_arm64_defconfig.
|
|
|
|
|
|
|
|
|
|
This should give you a nor_flash.bin, which you can use with qemu as an
|
|
|
|
|
alternative to QEMU_EFI.fd. You will also need to change the machine
|
2021-11-25 19:26:55 +01:00
|
|
|
specification to "-M virt,secure=on" on qemu command line, to enable TrustZone
|
2021-04-23 10:28:33 +02:00
|
|
|
support, and you will need to increase the memory with "-m 1024".
|
|
|
|
|
|
|
|
|
|
[1]: https://github.com/ARM-software/ebbr
|
|
|
|
|
[2]: https://developer.arm.com/architectures/system-architectures/arm-systemready
|
|
|
|
|
[3]: https://github.com/glikely/u-boot-tfa-build
|
