1.. _MIPS-System-emulator: 2 3MIPS System emulator 4-------------------- 5 6Four executables cover simulation of 32 and 64-bit MIPS systems in both 7endian options, ``qemu-system-mips``, ``qemu-system-mipsel`` 8``qemu-system-mips64`` and ``qemu-system-mips64el``. Five different 9machine types are emulated: 10 11- The MIPS Malta prototype board \"malta\" 12 13- An ACER Pica \"pica61\". This machine needs the 64-bit emulator. 14 15- MIPS emulator pseudo board \"mipssim\" 16 17- A MIPS Magnum R4000 machine \"magnum\". This machine needs the 18 64-bit emulator. 19 20The Malta emulation supports the following devices: 21 22- Core board with MIPS 24Kf CPU and Galileo system controller 23 24- PIIX4 PCI/USB/SMbus controller 25 26- The Multi-I/O chip's serial device 27 28- PCI network cards (PCnet32 and others) 29 30- Malta FPGA serial device 31 32- Cirrus (default) or any other PCI VGA graphics card 33 34The Boston board emulation supports the following devices: 35 36- Xilinx FPGA, which includes a PCIe root port and an UART 37 38- Intel EG20T PCH connects the I/O peripherals, but only the SATA bus 39 is emulated 40 41The ACER Pica emulation supports: 42 43- MIPS R4000 CPU 44 45- PC-style IRQ and DMA controllers 46 47- PC Keyboard 48 49- IDE controller 50 51The MIPS Magnum R4000 emulation supports: 52 53- MIPS R4000 CPU 54 55- PC-style IRQ controller 56 57- PC Keyboard 58 59- SCSI controller 60 61- G364 framebuffer 62 63The Fuloong 2E emulation supports: 64 65- Loongson 2E CPU 66 67- Bonito64 system controller as North Bridge 68 69- VT82C686 chipset as South Bridge 70 71- RTL8139D as a network card chipset 72 73The Loongson-3 virtual platform emulation supports: 74 75- Loongson 3A CPU 76 77- LIOINTC as interrupt controller 78 79- GPEX and virtio as peripheral devices 80 81- Both KVM and TCG supported 82 83The mipssim pseudo board emulation provides an environment similar to 84what the proprietary MIPS emulator uses for running Linux. It supports: 85 86- A range of MIPS CPUs, default is the 24Kf 87 88- PC style serial port 89 90- MIPSnet network emulation 91 92.. include:: cpu-models-mips.rst.inc 93 94.. _nanoMIPS-System-emulator: 95 96nanoMIPS System emulator 97~~~~~~~~~~~~~~~~~~~~~~~~ 98 99Executable ``qemu-system-mipsel`` also covers simulation of 32-bit 100nanoMIPS system in little endian mode: 101 102- nanoMIPS I7200 CPU 103 104Example of ``qemu-system-mipsel`` usage for nanoMIPS is shown below: 105 106Download ``<disk_image_file>`` from 107https://mipsdistros.mips.com/LinuxDistro/nanomips/buildroot/index.html. 108 109Download ``<kernel_image_file>`` from 110https://mipsdistros.mips.com/LinuxDistro/nanomips/kernels/v4.15.18-432-gb2eb9a8b07a1-20180627102142/index.html. 111 112Start system emulation of Malta board with nanoMIPS I7200 CPU:: 113 114 qemu-system-mipsel -cpu I7200 -kernel <kernel_image_file> \ 115 -M malta -serial stdio -m <memory_size> -hda <disk_image_file> \ 116 -append "mem=256m@0x0 rw console=ttyS0 vga=cirrus vesa=0x111 root=/dev/sda" 117