Gabriel Kaszewski
27be73f42d
VirtIO GPU: QEMU 11.x has RESOURCE_ATTACH_BACKING (0x0104) and RESOURCE_FLUSH (0x0106) command types swapped in its legacy MMIO VirtIO GPU implementation. Workaround: send swapped type values. Confirmed via QEMU monitor (xp shows correct bytes in memory) and QEMU trace events (device dispatches to wrong handler). Display pipeline now works end-to-end: adapter → GPU init → create_2d → attach_backing → set_scanout display-server → clear(blue) → flush → transfer + resource_flush snake → draw commands via IPC → display renders → flush to GPU Input server: - New driver-input-uart crate (reads UART at mapped VA 0x20000) - New bins/input-qemu composition root - Adapter loads input-server, maps UART MMIO into its address space - Init delegates both display_ep (slot 0) and input_ep (slot 1) to snake - WASD keys → UART → input-server → IPC → snake direction change Snake game runs with display and input, exits on wall collision.
19 lines
406 B
TOML
19 lines
406 B
TOML
[package]
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name = "display-qemu"
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version = "0.1.0"
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edition = "2024"
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[[bin]]
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name = "display-qemu"
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test = false
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bench = false
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[dependencies]
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types = { workspace = true }
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userspace-rt = { workspace = true }
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userspace = { workspace = true }
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server-framework = { workspace = true }
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display-server = { workspace = true }
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driver-framebuffer-virtio = { workspace = true }
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port-framebuffer = { workspace = true }
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