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- A generic ISA PC-like machine \"mips\" 12 13- The MIPS Malta prototype board \"malta\" 14 15- An ACER Pica \"pica61\". This machine needs the 64-bit emulator. 16 17- MIPS emulator pseudo board \"mipssim\" 18 19- A MIPS Magnum R4000 machine \"magnum\". This machine needs the 20 64-bit emulator. 21 22The generic emulation is supported by Debian 'Etch' and is able to 23install Debian into a virtual disk image. The following devices are 24emulated: 25 26- A range of MIPS CPUs, default is the 24Kf 27 28- PC style serial port 29 30- PC style IDE disk 31 32- NE2000 network card 33 34The Malta emulation supports the following devices: 35 36- Core board with MIPS 24Kf CPU and Galileo system controller 37 38- PIIX4 PCI/USB/SMbus controller 39 40- The Multi-I/O chip's serial device 41 42- PCI network cards (PCnet32 and others) 43 44- Malta FPGA serial device 45 46- Cirrus (default) or any other PCI VGA graphics card 47 48The Boston board emulation supports the following devices: 49 50- Xilinx FPGA, which includes a PCIe root port and an UART 51 52- Intel EG20T PCH connects the I/O peripherals, but only the SATA bus 53 is emulated 54 55The ACER Pica emulation supports: 56 57- MIPS R4000 CPU 58 59- PC-style IRQ and DMA controllers 60 61- PC Keyboard 62 63- IDE controller 64 65The MIPS Magnum R4000 emulation supports: 66 67- MIPS R4000 CPU 68 69- PC-style IRQ controller 70 71- PC Keyboard 72 73- SCSI controller 74 75- G364 framebuffer 76 77The Fulong 2E emulation supports: 78 79- Loongson 2E CPU 80 81- Bonito64 system controller as North Bridge 82 83- VT82C686 chipset as South Bridge 84 85- RTL8139D as a network card chipset 86 87The mipssim pseudo board emulation provides an environment similar to 88what the proprietary MIPS emulator uses for running Linux. It supports: 89 90- A range of MIPS CPUs, default is the 24Kf 91 92- PC style serial port 93 94- MIPSnet network emulation 95 96.. include:: cpu-models-mips.rst.inc 97 98.. _nanoMIPS-System-emulator: 99 100nanoMIPS System emulator 101~~~~~~~~~~~~~~~~~~~~~~~~ 102 103Executable ``qemu-system-mipsel`` also covers simulation of 32-bit 104nanoMIPS system in little endian mode: 105 106- nanoMIPS I7200 CPU 107 108Example of ``qemu-system-mipsel`` usage for nanoMIPS is shown below: 109 110Download ``<disk_image_file>`` from 111https://mipsdistros.mips.com/LinuxDistro/nanomips/buildroot/index.html. 112 113Download ``<kernel_image_file>`` from 114https://mipsdistros.mips.com/LinuxDistro/nanomips/kernels/v4.15.18-432-gb2eb9a8b07a1-20180627102142/index.html. 115 116Start system emulation of Malta board with nanoMIPS I7200 CPU:: 117 118 qemu-system-mipsel -cpu I7200 -kernel <kernel_image_file> \ 119 -M malta -serial stdio -m <memory_size> -hda <disk_image_file> \ 120 -append "mem=256m@0x0 rw console=ttyS0 vga=cirrus vesa=0x111 root=/dev/sda" 121