Provide a configuration fragment to enable ACPI on QEMU.
Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com Acked-by: Ilias Apalodimas ilias.apalodimas@linaro.org Reviewed-by: Simon Glass sjg@chromium.org --- v4: mention that QEMU v8.0.0 introduced RISC-V ACPI support v3: no change v2: no change --- MAINTAINERS | 1 + board/emulation/configs/acpi.config | 3 +++ doc/board/emulation/acpi.rst | 23 +++++++++++++++++++++++ doc/board/emulation/index.rst | 1 + 4 files changed, 28 insertions(+) create mode 100644 board/emulation/configs/acpi.config create mode 100644 doc/board/emulation/acpi.rst
diff --git a/MAINTAINERS b/MAINTAINERS index 25f2bb80de..bf437b253b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -53,6 +53,7 @@ Maintainers List (try to look for most precise areas first) ACPI: M: Simon Glass sjg@chromium.org S: Maintained +F: board/emulation/configs/acpi.config F: cmd/acpi.c F: lib/acpi/
diff --git a/board/emulation/configs/acpi.config b/board/emulation/configs/acpi.config new file mode 100644 index 0000000000..b7ed811e33 --- /dev/null +++ b/board/emulation/configs/acpi.config @@ -0,0 +1,3 @@ +CONFIG_CMD_QFW=y +CONFIG_ACPI=y +CONFIG_GENERATE_ACPI_TABLE=y diff --git a/doc/board/emulation/acpi.rst b/doc/board/emulation/acpi.rst new file mode 100644 index 0000000000..e1208ca51e --- /dev/null +++ b/doc/board/emulation/acpi.rst @@ -0,0 +1,23 @@ +.. SPDX-License-Identifier: GPL-2.0+ + +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. + +.. code-block:: bash + + make qemu-riscv64_smode_defconfig acpi.config diff --git a/doc/board/emulation/index.rst b/doc/board/emulation/index.rst index 932c65adeb..d3d6b8f3d8 100644 --- a/doc/board/emulation/index.rst +++ b/doc/board/emulation/index.rst @@ -6,6 +6,7 @@ Emulation .. toctree:: :maxdepth: 1
+ acpi blkdev ../../usage/semihosting qemu-arm