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MIPS System emulator

docs/system/target-mips.rst

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.. _MIPS-System-emulator:

MIPS System emulator

Four executables cover simulation of 32 and 64-bit MIPS systems in both endian options, qemu-system-mips, qemu-system-mipsel qemu-system-mips64 and qemu-system-mips64el. Five different machine types are emulated:

  • The MIPS Malta prototype board "malta"

  • An ACER Pica "pica61". This machine needs the 64-bit emulator.

  • A MIPS Magnum R4000 machine "magnum". This machine needs the 64-bit emulator.

The Malta emulation supports the following devices:

  • Core board with MIPS 24Kf CPU and Galileo system controller

  • PIIX4 PCI/USB/SMbus controller

  • The Multi-I/O chip's serial device

  • PCI network cards (PCnet32 and others)

  • Malta FPGA serial device

  • Cirrus (default) or any other PCI VGA graphics card

The Boston board emulation supports the following devices:

  • Xilinx FPGA, which includes a PCIe root port and an UART

  • Intel EG20T PCH connects the I/O peripherals, but only the SATA bus is emulated

The ACER Pica emulation supports:

  • MIPS R4000 CPU

  • PC-style IRQ and DMA controllers

  • PC Keyboard

  • IDE controller

The MIPS Magnum R4000 emulation supports:

  • MIPS R4000 CPU

  • PC-style IRQ controller

  • PC Keyboard

  • SCSI controller

  • G364 framebuffer

The Fuloong 2E emulation supports:

  • Loongson 2E CPU

  • Bonito64 system controller as North Bridge

  • VT82C686 chipset as South Bridge

  • RTL8139D as a network card chipset

The Loongson-3 virtual platform emulation supports:

  • Loongson 3A CPU

  • LIOINTC as interrupt controller

  • GPEX and virtio as peripheral devices

  • Both KVM and TCG supported

.. include:: cpu-models-mips.rst.inc

.. _nanoMIPS-System-emulator:

nanoMIPS System emulator


Executable ``qemu-system-mipsel`` also covers simulation of 32-bit
nanoMIPS system in little endian mode:

-  nanoMIPS I7200 CPU

Example of ``qemu-system-mipsel`` usage for nanoMIPS is shown below:

Download ``<disk_image_file>`` from
https://mipsdistros.mips.com/LinuxDistro/nanomips/buildroot/index.html.

Download ``<kernel_image_file>`` from
https://mipsdistros.mips.com/LinuxDistro/nanomips/kernels/v4.15.18-432-gb2eb9a8b07a1-20180627102142/index.html.

Start system emulation of Malta board with nanoMIPS I7200 CPU::

   qemu-system-mipsel -cpu I7200 -kernel <kernel_image_file> \
       -M malta -serial stdio -m <memory_size> -drive file=<disk_image_file>,format=raw \
       -append "mem=256m@0x0 rw console=ttyS0 vga=cirrus vesa=0x111 root=/dev/sda"