host_probe derived the guest's below-4G split (vmie `low`) by taking the first
GPA-0 RAM run in `info mtree -f`. When low RAM is fragmented by overlay pages
(Hyper-V SynIC) and blackhole holes (smbase/tseg), that first run is a tiny
fragment, so the split came out far too small and host_bootstrap could never
recover the System DTB — the memctx context was never published.
Extract a pure parser, mtree_low_split(): anchor on the system flatview, take
`low` from the @file-offset of the high-RAM region at GPA >= 4 GiB (which equals
the split by construction), cross-validate against the PCI-hole base, and fail
closed when it can't be derived. QMP-reply un-escaping moves to the transport
boundary so the parser works on plain text. Unit-tested against a synthetic
fragmented flatview including a decoy non-system address space.
postinst also hints to restart the daemon after an upgrade (a running instance
keeps the old build until restarted).
Bump 0.3.6.
- the vmsig package no longer ships the gpu lib; it is a Sensor lib for the control, not the daemon
- vgpu-perception gets SOVERSION; runtime (libvgpu-perception0) and dev (-dev) packages, like the vmie split
- per-component install + a 3-package make deb; fix a stale comment (the windows producer is in-tree)
- core: runtime attach/detach of a per-endpoint adapter trio (runtime-safe add_adapter + vmsig_core_detach_endpoint, deferred reap)
- roster: VMSIG_EV_ROSTER + CAP_ROSTER, retained per-endpoint and replayed to late subscribers
- discovery: inotify trigger dir, vmid/endpoint slot allocator, host probe; vmsigd daemon with config + per-uid admission
- input driver and vgpu perception built in-tree; vgpu perception as a separate library
- memctx: own the supplied ro_fd (closed at detach)
- deb packaging: install rules, systemd unit, tmpfiles, default config
lirent
