System-emulated accelerators (`slash_sysemu`) - #152

Draft

JOOpdenhoevel wants to merge 79 commits into

JOOpdenhoevel:feature/system_emulation_via_sockets

Commits on Jun 26, 2026

Rebooting the system emulation efforts based on UNIX domain sockets
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ed19277

Commits on Jun 29, 2026

Further iteration on the architecture
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ce2894c

Commits on Jun 30, 2026

Adding a reference document for the ZMQ model process protocol
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Fleshing out the QDMA mechanisms
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772e0de

Commits on Jul 1, 2026

Specing the BAR subsystem
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Passing the ZMQ address to the model executable via a CLI argument
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Writing tweaks
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Moving the model control workers into their own subsyste
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Decentralizing setup and teardown procedures
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Explicitly handling model process deaths and forced UNIX socket disconnects
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Removing the last todos
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Fleshing out an implementation plan
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Final architecture tweaks
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Small amendments to the implementation plan
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slash_emu: Step 1 — project scaffolding and test harness

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slash_emu: Step 2 — socket transport and protocol framing

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slash_emu: Step 3 — configuration and CLI

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5fe0b4a

Commits on Jul 3, 2026

slash_emu: Step 4 — VBIN and system map parsing

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slash_emu: Step 5 — ZeroMQ model client

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slash_emu: Step 6 — Model process lifecycle and reconfiguration

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adc13da

Commits on Jul 6, 2026

slash_emu: Step 7 — BAR memfds

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slash_emu: Step 8 — Model control workers

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slash_emu: Step 9 — BAR/device-info subsystem (PF2)

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slash_emu: Step 10 — QDMA subsystem (PF1)

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c291936

Commits on Jul 7, 2026

slash_emu: Step 11 — Accelerator lifecycle and hotplug

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slash_emu: refactor daemon onto systemd (sd-event/sd_notify), drop what systemd owns

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slash_sysemu: rename from slash_emu (system emulation, not FPGA emulation)

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slash_sysemu: build a default VBIN from source and use it as the startup default

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slash_sysemu: package the daemon as a systemd service (deb + rpm)

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slash_sysemu: fix Step-11 generation-guard race (generation collision on RESCAN replace)

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3b0ca4c

Commits on Jul 8, 2026

libslash/slash_sysemu: Step 12 — socket transport, sysemu E2E, and daemon umask fix

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e005af8

Commits on Jul 9, 2026

slash_sysemu + libslash: fix fd-reuse shutdown() clobber; add real-daemon E2E

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Compacting the progress section of the architecture document
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examples/00_axilite: add libslash-only raw E2E app; wire xsim libs for sysemu

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slash_sysemu: fix kernels never finishing (absolute base vs BAR offset)

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Updating the progress in the architecture document
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Deferring VRTD and VRT integration from the work plan
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Documenting system emulation
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Commits on Jul 10, 2026

Commits on Jul 22, 2026

Merge branch 'dev' into feature/system_emulation_via_sockets
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Fix QDMA keyhole apertures
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3501016

Commits on Jul 27, 2026

Unifying the qdma test suites
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Commits on Jul 28, 2026

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Commits on Aug 4, 2026

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Commits on Aug 13, 2026

[libslash] Further DRYing
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Further compacting the test suites
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[libslash] Closing small coverage gaps and fixing small bugs
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Commits on Aug 14, 2026

Commits on Aug 17, 2026

Merge remote-tracking branch 'Xilinx/dev' into feature/system_emulation_via_sockets
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