Myasnikov Daniil
a94abe0971
test(e2e): record the runner's SVM feature flags in the identity capture
...
Adds one line to the runner identity record, taken from the lscpu read it
already does:
svm features: svm npt nrip_save vgif
vgif decides whether a guest that is itself running a hypervisor pays a VM exit
on every CLGI/STGI. Here that is the sandbox Talos nodes hosting the tenant
KubeVirt VMs, so it only bites at double nesting, and the sandbox nodes' own
boot is unaffected.
Across the archived reports no run missing the flag has passed a
tenant-Kubernetes suite: 0 of 62, against 11 of 12 with it. Exposure varies
between hosts of the same shape, so it is not a property of the lane and cannot
be recovered once the runner is recycled. Recording it on every run, red and
green, is what makes the correlation countable rather than reconstructed by hand.
No new bounded read, no compiler on the runner, no sysfs. Gated on svm so an
Intel host's vnmi is not reported as an SVM feature.
Five tests for the reader. Identity suite 62 assertions, hack/ sweep 732.
No behaviour change and no gating on the flag.
Assisted-By: Claude <noreply@anthropic.com >
Signed-off-by: Myasnikov Daniil <myasnikovdaniil2001@gmail.com >
2026-08-23 19:38:49 +05:00
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