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1 .. _RISC-V-System-emulator:
3 RISC-V System emulator
6 QEMU can emulate both 32-bit and 64-bit RISC-V CPUs. Use the
7 ``qemu-system-riscv64`` executable to simulate a 64-bit RISC-V machine,
8 ``qemu-system-riscv32`` executable to simulate a 32-bit RISC-V machine.
10 QEMU has generally good support for RISC-V guests. It has support for
12 RISC-V hardware is much more widely varying than x86 hardware. RISC-V
13 CPUs are generally built into "system-on-chip" (SoC) designs created by
23 ----------------------
25 For QEMU's RISC-V system emulation, you must specify which board
26 model you want to use with the ``-M`` or ``--machine`` option;
29 Because RISC-V systems differ so much and in fundamental ways, typically
38 in its ``-machine help`` output. If it is listed, then you can probably
51 large amounts of RAM. It also supports 64-bit CPUs.
53 Board-specific documentation
54 ----------------------------
56 Unfortunately many of the RISC-V boards QEMU supports are currently
58 ``qemu-system-riscv64 --machine help``, or
59 ``qemu-system-riscv32 --machine help``.
69    riscv/microblaze-v-generic
70    riscv/microchip-icicle-kit
71    riscv/shakti-c
75 RISC-V CPU firmware
76 -------------------
81 * ``-bios default``
83 This is the default behaviour if no ``-bios`` option is included. This option
86 do is specify the kernel they want to boot with the ``-kernel`` option
88 * ``-bios none``
93 * ``-bios <file>``