dev-virtio,configs-arm: Add 9P directory rootfs support#3176
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Adds an optional npfs/ufs-backed VirtIO 9P backend. The backend is
enabled at build time by setting NPFS_PATH to an npfs source tree and
serializes npfs state into gem5 checkpoints, allowing a 9P-mounted
directory filesystem to work across checkpoint and restore.
npfs is available from:
https://github.com/lionkov/npfs
Updates the ARM fs_bigLITTLE example with --rootfs-dir, --vio-9p-root,
--vio-9p-tag, and --vio-9p-debug options. --rootfs-dir exports a host
directory through VirtIO 9P, uses /dev/root as the default mount tag,
and adds the kernel arguments required to mount the directory as the
guest root filesystem.
Documents the optional npfs build flow and rootfs directory usage under
src/dev/virtio.
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@giactra: Hello, would you be able to take a look at this PR when you get a chance? Thank you! |
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Adds an optional npfs/ufs-backed VirtIO 9P backend. The backend is enabled at build time by setting NPFS_PATH to an npfs source tree and serializes npfs state into gem5 checkpoints, allowing a 9P-mounted directory filesystem to work across checkpoint and restore.
npfs is available from:
Updates the ARM fs_bigLITTLE example with --rootfs-dir, --vio-9p-root, --vio-9p-tag, and --vio-9p-debug options. --rootfs-dir exports a host directory through VirtIO 9P, uses /dev/root as the default mount tag, and adds the kernel arguments required to mount the directory as the guest root filesystem.
Documents the optional npfs build flow and rootfs directory usage under src/dev/virtio.