Files
antia a69768e478 libvirt: Add Intel TDX host capability detection
Adds host capability detection for Intel TDX to the libvirt driver.
Detection is performed using 2 mechanisms: libvirt domain capabilities
and the capacity exposed by the cgroup misc controller
(/sys/fs/cgroup/misc.capacity). The latter is used to report the number
of available TDX keys. Intel TDX also requires CPU mode to be
'host-passthrough'.

The config option [libvirt] 'num_intel_tdx_guests' can also be used to
configure the maximum number of available TDX keys. This is to
accomondate deployments where cgroup misc controller does not reflect
the information by the host.

Bumps os-traits dependency to version 3.8.0 to use Intel TDX trait.
Bumps ImageMetaProps version to 1.44.
Bumps ImageMetaPropsPayload version to 1.20.

Partial-Implements: blueprint intel-tdx-libvirt-support
Change-Id: I67315422eccc113390fedc905d3217a2d73367a1
Signed-off-by: antia <anton.iacobaeus@canarybit.eu>
2026-08-21 07:48:20 -07:00
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