xv6-riscv

Boots the MIT xv6-riscv kernel to an interactive shell.

Running

cd resource
make xv6

Expected time to prompt: ~0.3 s.

What happens

• xemu starts in M-mode at 0x8000_0000.
• The xv6 bootstrap switches to S-mode, sets up page tables, and starts the kernel scheduler.
• Console (sh) runs off a ramdisk embedded in the kernel image.

No firmware is loaded — xv6 runs directly. This makes it the simplest "real OS" target and a good sanity check after touching the trap framework or the MMU.

Exiting

Ctrl-A X — QEMU-style escape, intercepted by xemu's UART.