| :orphan: |
| |
| ========================================== |
| loongson3 virt generic platform (``virt``) |
| ========================================== |
| |
| The ``virt`` machine use gpex host bridge, and there are some |
| emulated devices on virt board, such as loongson7a RTC device, |
| IOAPIC device, ACPI device and so on. |
| |
| Supported devices |
| ----------------- |
| |
| The ``virt`` machine supports: |
| - Gpex host bridge |
| - Ls7a RTC device |
| - Ls7a IOAPIC device |
| - Ls7a ACPI device |
| - Fw_cfg device |
| - PCI/PCIe devices |
| - Memory device |
| - CPU device. Type: Loongson-3A5000. |
| |
| CPU and machine Type |
| -------------------- |
| |
| The ``qemu-system-loongarch64`` provides emulation for virt |
| machine. You can specify the machine type ``virt`` and |
| cpu type ``Loongson-3A5000``. |
| |
| Boot options |
| ------------ |
| |
| Now the ``virt`` machine can run test program in ELF format and the |
| method of compiling is in target/loongarch/README. |
| |
| .. code-block:: bash |
| |
| $ qemu-system-loongarch64 -machine virt -m 4G -cpu Loongson-3A5000 \ |
| -smp 1 -kernel hello -monitor none -display none \ |
| -chardev file,path=hello.out,id=output -serial chardev:output |
