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| author | Luc Michel <luc.michel@amd.com> | 2025-09-26 09:08:03 +0200 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2025-10-07 10:35:36 +0100 |
| commit | 39cf696fc57a74a40beafaa1d341d4ef9b41bbd0 (patch) | |
| tree | 530d6b394004e0b0ab92b92d9791e43eccd9f22c | |
| parent | 0ec8c4296d48efc0a9ee7ac7bdc7523b793de4bd (diff) | |
| download | focaccia-qemu-39cf696fc57a74a40beafaa1d341d4ef9b41bbd0.tar.gz focaccia-qemu-39cf696fc57a74a40beafaa1d341d4ef9b41bbd0.zip | |
docs/system/arm/xlnx-versal-virt: add a note about dumpdtb
Add a note in the DTB section explaining how to dump the generated DTB using the dumpdtb machine option. Signed-off-by: Luc Michel <luc.michel@amd.com> Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com> Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20250926070806.292065-46-luc.michel@amd.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | docs/system/arm/xlnx-versal-virt.rst | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/docs/system/arm/xlnx-versal-virt.rst b/docs/system/arm/xlnx-versal-virt.rst index 94c8bacf61..5d7fa18592 100644 --- a/docs/system/arm/xlnx-versal-virt.rst +++ b/docs/system/arm/xlnx-versal-virt.rst @@ -65,7 +65,13 @@ When loading an OS, QEMU generates a DTB and selects an appropriate address where it gets loaded. This DTB will be passed to the kernel in register x0. If there's no ``-kernel`` option, we generate a DTB and place it at 0x1000 -for boot-loaders or firmware to pick it up. +for boot-loaders or firmware to pick it up. To dump and observe the generated +DTB, one can use the ``dumpdtb`` machine option: + +.. code-block:: bash + + $ qemu-system-aarch64 -M amd-versal-virt,dumpdtb=example.dtb -m 2G + If users want to provide their own DTB, they can use the ``-dtb`` option. These DTBs will have their memory nodes modified to match QEMU's |