ACPI on QEMU

QEMU can provide ACPI tables on ARM, RISC-V (since QEMU v8.0.0), and x86.

The following U-Boot settings are needed for ACPI support:

CONFIG_CMD_QFW=y
CONFIG_ACPI=y
CONFIG_GENERATE_ACPI_TABLE=y

On x86 these settings are already included in the defconfig files. ARM and RISC-V default to use device-trees.

Instead of updating the configuration manually you can add the configuration fragment acpi.config to the make command for initializing the configuration. E.g.

make qemu-riscv64_smode_defconfig acpi.config