Gabriel Kaszewski
38f20cc3c4
Complete microkernel boot pipeline: adapter loads only init + storage + display from disk. Init bootstraps all other servers by reading binaries from the storage server via IPC, parsing ELF, creating processes, mapping pages, and spawning threads. New syscalls: - CreateEndpoint: userspace endpoint creation with full capability grant - DebugPutchar: debug output to UART from userspace - MapPage: cross-process page mapping (init loads binaries into children) - SpawnThreadIn: spawn thread in another process via capability Key fixes: - Per-process L1 page tables for VPN[2]=0 (prevents cross-process corruption) - Separate kernel_pt from page_tables[0] (init pid=0 overwrote kernel PT ref) - Thread Running state set in switch_to_next (syscalls rejected without it) - Pending IPC results applied during context switch - SIE disabled during boot (timer can't preempt into unready processes) - User heap VA starts at 0x40000 (avoids shared buffer at 0x30000) - RequestPages maps at user VAs via per-process heap allocator VirtIO GPU: - Adapter probes for GPU device, initializes resource/scanout/backing - Display server writes to mapped framebuffer, flushes via GPU virtqueue - 640x480 BGRA framebuffer with transfer-to-host and resource-flush Storage server: - Userspace VirtIO block driver using pre-mapped MMIO and DMA pages - FAT16 filesystem reader serving file-read requests via IPC - Shared buffer protocol: init writes filename, storage writes file data Echo app for IPC testing (adapter-loaded echo proved the pipeline end-to-end).
54 lines
1.1 KiB
Makefile
54 lines
1.1 KiB
Makefile
.PHONY: check fmt clippy test kani build all image run
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RISCV_TARGET = riscv64gc-unknown-none-elf
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KERNEL_BIN = target/$(RISCV_TARGET)/release/adapter-riscv
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all: check fmt clippy test
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check:
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cargo check --workspace
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fmt:
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cargo fmt --all -- --check
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clippy:
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cargo clippy --workspace -- -D warnings
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test:
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cargo test --workspace
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kani-types:
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cargo kani -p types
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kani-domain:
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cargo kani -p domain
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kani-kernel:
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cargo kani -p kernel
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kani: kani-types kani-domain kani-kernel
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build:
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cargo build -p adapter-riscv --target $(RISCV_TARGET) --release
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image: build
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scripts/make-disk-image.sh
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run: build
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qemu-system-riscv64 -machine virt -nographic -bios default \
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-kernel $(KERNEL_BIN)
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run-disk: image
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qemu-system-riscv64 -machine virt -nographic -bios default \
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-kernel $(KERNEL_BIN) \
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-drive file=boot.img,if=none,format=raw,id=hd0 \
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-device virtio-blk-device,drive=hd0
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run-gui: image
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qemu-system-riscv64 -machine virt -bios default \
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-kernel $(KERNEL_BIN) \
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-drive file=boot.img,if=none,format=raw,id=hd0 \
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-device virtio-blk-device,drive=hd0 \
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-device virtio-gpu-device \
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-serial stdio
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