mirror of
https://github.com/riscv-software-src/opensbi
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84cd4b7cd0
Mostly reformating. Some minor edits. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
53 lines
1.3 KiB
Markdown
53 lines
1.3 KiB
Markdown
QEMU SiFive Unleashed Machine Platform
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======================================
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The **QEMU SiFive Unleashed Machine** is an emulation of the SiFive Unleashed
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platform.
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To build this platform specific library and firmwares, provide the
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*PLATFORM=qemu/sifive_u* parameter to the top level `make` command line.
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Platform Options
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----------------
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The *QEMU SiFive Unleashed Machine* platform does not have any platform specific
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options.
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Executing on QEMU RISC-V 64bit
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------------------------------
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**No Payload Case**
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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 sifive_u -m 256M -display none -serial stdio \
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-kernel build/platform/qemu/sifive_u/firmware/fw_payload.elf
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```
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**U-Boot as a Payload**
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Note: the command line examples here assume that U-Boot was compiled using
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the `qemu-riscv64_smode_defconfig` configuration.
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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 sifive_u -m 256M -display none -serial stdio \
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-kernel build/platform/qemu/sifive_u/firmware/fw_payload.elf
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```
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or
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```
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qemu-system-riscv64 -M sifive_u -m 256M -display none -serial stdio \
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-kernel build/platform/qemu/sifive_u/firmware/fw_jump.elf \
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-device loader,file=<uboot_build_directory>/u-boot.bin,addr=0x80200000
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```
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