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lirent
3142337e62
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.
30 lines
1.4 KiB
Bash
Executable File
30 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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set -e
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case "$1" in
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configure)
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ldconfig || true
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mkdir -p /etc/vmsig
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chmod 0640 /etc/vmsig/vmsigd.conf 2>/dev/null || true # carries the uid->grant policy
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mkdir -p /dev/shm/vmsig && chmod 0755 /dev/shm/vmsig # also (re)created at boot via tmpfiles
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if [ -d /run/systemd/system ]; then
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systemctl daemon-reload || true
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systemd-tmpfiles --create /usr/lib/tmpfiles.d/vmsig.conf || true
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systemctl enable vmsigd.service || true # enable, but do NOT start
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fi
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if [ -z "$2" ]; then
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# fresh install ($2 empty): enabled but NOT started — the operator reviews the
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# grant policy before the first start.
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echo "vmsig: review the [grant] policy in /etc/vmsig/vmsigd.conf, then: systemctl start vmsigd" >&2
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else
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# upgrade ($2 = old version): a running daemon keeps the OLD in-memory image until
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# restarted — the new build is not applied automatically. Not auto-restarted here:
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# the start is gated on the grant policy, so the operator owns the moment. try-restart
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# touches the daemon only if it is currently running (leaves a stopped one alone).
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echo "vmsig: upgraded from $2 — a running daemon still runs the old build; apply with: systemctl try-restart vmsigd" >&2
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fi
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;;
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abort-upgrade|abort-remove|abort-deconfigure)
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;;
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esac
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exit 0
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