d88b51dc26
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220606124333.2060567-19-yangxiaojuan@loongson.cn> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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1.1 KiB
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42 lines
1.1 KiB
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==========================================
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loongson3 virt generic platform (``virt``)
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==========================================
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The ``virt`` machine use gpex host bridge, and there are some
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emulated devices on virt board, such as loongson7a RTC device,
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IOAPIC device, ACPI device and so on.
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Supported devices
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-----------------
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The ``virt`` machine supports:
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- Gpex host bridge
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- Ls7a RTC device
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- Ls7a IOAPIC device
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- Ls7a ACPI device
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- Fw_cfg device
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- PCI/PCIe devices
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- Memory device
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- CPU device. Type: Loongson-3A5000.
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CPU and machine Type
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--------------------
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The ``qemu-system-loongarch64`` provides emulation for virt
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machine. You can specify the machine type ``virt`` and
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cpu type ``Loongson-3A5000``.
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Boot options
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------------
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Now the ``virt`` machine can run test program in ELF format and the
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method of compiling is in target/loongarch/README.
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.. code-block:: bash
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$ qemu-system-loongarch64 -machine virt -m 4G -cpu Loongson-3A5000 \
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-smp 1 -kernel hello -monitor none -display none \
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-chardev file,path=hello.out,id=output -serial chardev:output
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