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configs/qemu_riscv64_nommu_virt_defconfig: new defconfig

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Add RISC-V 64-bit nommu defconfig for QEMU virt machine with MMU
disabled.

Unlike qemu_riscv64_virt, qemu_riscv64_nommu_virt does not use OpenSBI,
since the kernel is running in machine mode (M-mode).

After the build is complete, you can start QEMU using the launcher
script:
$ output/images/start-qemu.sh

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Niklas Cassel
2022-05-30 12:38:29 +09:00
committed by Thomas Petazzoni
parent cecb262571
commit 1b298db82f
3 changed files with 42 additions and 0 deletions
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2
board/qemu/riscv64-virt/readme.txt
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@@ -2,4 +2,6 @@ Run Linux in emulation with:
qemu-system-riscv64 -M virt -bios output/images/fw_jump.elf -kernel output/images/Image -append "rootwait root=/dev/vda ro" -drive file=output/images/rootfs.ext2,format=raw,id=hd0 -device virtio-blk-device,drive=hd0 -netdev user,id=net0 -device virtio-net-device,netdev=net0 -nographic # qemu_riscv64_virt_defconfig
qemu-system-riscv64 -M virt -bios none -kernel output/images/Image -append "rootwait root=/dev/vda ro" -drive file=output/images/rootfs.ext2,format=raw,id=hd0 -device virtio-blk-device,drive=hd0 -nographic -cpu rv64,mmu=off # qemu_riscv64_nommu_virt_defconfig
The login prompt will appear in the terminal that started Qemu.