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59 lines
2 KiB
Markdown
59 lines
2 KiB
Markdown
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QEMU RISC-V Virt Machine
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========================
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The **QEMU RISC-V Virt Machine** is virtual platform created
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for RISC-V software development. It is also referred to as
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QEMU RISC-V VirtIO machine because it uses VirtIO devices
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for network, storage, and other types of IO.
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To build platform specific library and firmwares, provide
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`PLATFORM=qemu/virt` parameter to top-level make.
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Platform Options
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----------------
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We don't have any platform specific options for this platform.
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Try on QEMU RISC-V 64bit
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------------------------
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**No Payload**
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*Build*:
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```
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make PLATFORM=qemu/virt
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```
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*Run*:
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```
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qemu-system-riscv64 -M virt -m 256M -display none -serial stdio -kernel build/platform/qemu/virt/firmware/fw_payload.elf
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```
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**U-Boot Payload**
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*Note*: We assume that U-Boot is compiled using `qemu-riscv64_smode_defconfig`.
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*Build*:
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```
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make PLATFORM=qemu/virt FW_PAYLOAD_PATH=<uboot_build_directory>/u-boot.bin
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```
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*Run*:
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```
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qemu-system-riscv64 -M virt -m 256M -display none -serial stdio -kernel build/platform/qemu/virt/firmware/fw_payload.elf
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or
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qemu-system-riscv64 -M virt -m 256M -display none -serial stdio -kernel build/platform/qemu/virt/firmware/fw_jump.elf -device loader,file=<uboot_build_directory>/u-boot.bin,addr=0x80200000
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```
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**Linux Payload**
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*Note*: We assume that Linux is compiled using `defconfig`.
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*Build*:
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```
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make PLATFORM=qemu/virt FW_PAYLOAD_PATH=<linux_build_directory>/arch/riscv/boot/Image
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```
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*Run*:
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```
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qemu-system-riscv64 -M virt -m 256M -display none -serial stdio -kernel build/platform/qemu/virt/firmware/fw_payload.elf -drive file=<path_to_linux_rootfs>,format=raw,id=hd0 -device virtio-blk-device,drive=hd0 -append "root=/dev/vda rw console=ttyS0"
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or
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qemu-system-riscv64 -M virt -m 256M -display none -serial stdio -kernel build/platform/qemu/virt/firmware/fw_jump.elf -device loader,file=<linux_build_directory>/arch/riscv/boot/Image,addr=0x80200000 -drive file=<path_to_linux_rootfs>,format=raw,id=hd0 -device virtio-blk-device,drive=hd0 -append "root=/dev/vda rw console=ttyS0"
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```
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