qemu-system-riscv64 命令

常用示例

说明

qemu-system-riscv64 is the QEMU system emulator for 64-bit RISC-V guests. It can run bare-metal code, bootloaders, or full Linux distributions on a range of emulated boards. The default virt machine is a paravirtualized board designed for virtualization, with VirtIO devices, a CLINT/PLIC interrupt controller and optional OpenSBI firmware. Other boards model real hardware such as the sifive_u (SiFive HiFive Unleashed), sifive_e and spike simulator. The emulator supports the standard RV64GC ISA plus a large number of optional extensions (H, V, Zicbom, Zba, Zbb, etc.) that can be enabled with the -cpu option.

参数

-machine _type_

Machine type to emulate (e.g. virt, sifive_u, sifive_e, spike).

-cpu _model_

CPU model (e.g. rv64, sifive-u54). Default is rv64.

-smp _n_

Number of virtual CPUs.

-m _size_

RAM size (e.g. 512M, 2G).

-kernel _file_

Bootable kernel image (ELF, uImage, or raw).

-bios _file_

Firmware image loaded before the kernel (default: OpenSBI).

-initrd _file_

Initial ramdisk image.

-append _args_

Kernel command-line arguments.

-drive _options_

Define a block device (e.g. file=disk.img,format=raw,if=virtio).

-netdev _options_

Define a backend network (e.g. user, tap).

-device _options_

Add a device (e.g. virtio-net-device, virtio-blk-device).

-nographic

Disable graphical output; redirect serial/console to stdio.

-serial _dev_

Redirect serial port (e.g. stdio, mon:stdio, file:log).

-display _type_

Display backend (none, gtk, sdl, vnc).

-S

Freeze CPU at startup (useful with -s for gdb).

-s

Shortcut for -gdb tcp::1234.