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Update MIPS machine documentation to add Loongson-3 based machine description. Signed-off-by: Huacai Chen <chenhuacai@kernel.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20201221110538.3186646-6-chenhuacai@kernel.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
131 lines
3.0 KiB
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131 lines
3.0 KiB
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.. _MIPS-System-emulator:
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MIPS System emulator
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--------------------
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Four executables cover simulation of 32 and 64-bit MIPS systems in both
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endian options, ``qemu-system-mips``, ``qemu-system-mipsel``
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``qemu-system-mips64`` and ``qemu-system-mips64el``. Five different
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machine types are emulated:
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- A generic ISA PC-like machine \"mips\"
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- The MIPS Malta prototype board \"malta\"
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- An ACER Pica \"pica61\". This machine needs the 64-bit emulator.
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- MIPS emulator pseudo board \"mipssim\"
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- A MIPS Magnum R4000 machine \"magnum\". This machine needs the
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64-bit emulator.
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The generic emulation is supported by Debian 'Etch' and is able to
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install Debian into a virtual disk image. The following devices are
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emulated:
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- A range of MIPS CPUs, default is the 24Kf
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- PC style serial port
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- PC style IDE disk
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- NE2000 network card
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The Malta emulation supports the following devices:
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- Core board with MIPS 24Kf CPU and Galileo system controller
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- PIIX4 PCI/USB/SMbus controller
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- The Multi-I/O chip's serial device
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- PCI network cards (PCnet32 and others)
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- Malta FPGA serial device
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- Cirrus (default) or any other PCI VGA graphics card
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The Boston board emulation supports the following devices:
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- Xilinx FPGA, which includes a PCIe root port and an UART
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- Intel EG20T PCH connects the I/O peripherals, but only the SATA bus
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is emulated
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The ACER Pica emulation supports:
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- MIPS R4000 CPU
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- PC-style IRQ and DMA controllers
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- PC Keyboard
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- IDE controller
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The MIPS Magnum R4000 emulation supports:
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- MIPS R4000 CPU
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- PC-style IRQ controller
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- PC Keyboard
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- SCSI controller
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- G364 framebuffer
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The Fuloong 2E emulation supports:
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- Loongson 2E CPU
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- Bonito64 system controller as North Bridge
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- VT82C686 chipset as South Bridge
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- RTL8139D as a network card chipset
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The Loongson-3 virtual platform emulation supports:
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- Loongson 3A CPU
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- LIOINTC as interrupt controller
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- GPEX and virtio as peripheral devices
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- Both KVM and TCG supported
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The mipssim pseudo board emulation provides an environment similar to
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what the proprietary MIPS emulator uses for running Linux. It supports:
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- A range of MIPS CPUs, default is the 24Kf
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- PC style serial port
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- MIPSnet network emulation
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.. include:: cpu-models-mips.rst.inc
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.. _nanoMIPS-System-emulator:
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nanoMIPS System emulator
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~~~~~~~~~~~~~~~~~~~~~~~~
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Executable ``qemu-system-mipsel`` also covers simulation of 32-bit
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nanoMIPS system in little endian mode:
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- nanoMIPS I7200 CPU
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Example of ``qemu-system-mipsel`` usage for nanoMIPS is shown below:
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Download ``<disk_image_file>`` from
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https://mipsdistros.mips.com/LinuxDistro/nanomips/buildroot/index.html.
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Download ``<kernel_image_file>`` from
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https://mipsdistros.mips.com/LinuxDistro/nanomips/kernels/v4.15.18-432-gb2eb9a8b07a1-20180627102142/index.html.
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Start system emulation of Malta board with nanoMIPS I7200 CPU::
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qemu-system-mipsel -cpu I7200 -kernel <kernel_image_file> \
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-M malta -serial stdio -m <memory_size> -hda <disk_image_file> \
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-append "mem=256m@0x0 rw console=ttyS0 vga=cirrus vesa=0x111 root=/dev/sda"
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