Add support for testing if a node can use virtualization for use by kata-containers (seehttps://katacontainers.slack.com/archives/C879ACQ00/p1761731112286659). On AMD and Intel platforms this can be determined with CPU feature flags, but on arm64 the situation is more complex. There 2 two flags -ID_AA64PFR0_EL1.EL2 (doc) andID_AA64MMFR1_EL1.VH (doc)

ID_AA64PFR0_EL1.EL2 & 0b0001 != 0 (kernel runs at EL1, hyp world at EL2 - nVHE)
ID_AA64MMFR1_EL1.VH & 0b0001 != 0 (kernel is at EL2 using VHE), not visible from user space

Instead, check ifkvm is initialized and has created/sys/devices/virtual/misc/kvm.

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✅ login: seungukshin / name: Seunguk Shin (e7cbed9)

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k8s-ci-robot requested review fromadrianchiris andmarquiz

November 7, 2025 15:26

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Dec 9, 2025

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Thank you@seungukshin for the contribution. Could you sign the CLA?

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marquiz commentedDec 9, 2025

/ok-to-test

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seungukshin commentedDec 9, 2025

Thank you@seungukshin for the contribution. Could you sign the CLA?

Thank you@marquiz and sorry for the delay.
I'm working on CLA from my company side, and probably I could proceed this this week.

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marquiz commentedDec 10, 2025

I'm working on CLA from my company side, and probably I could proceed this this week.

No problem

seungukshin force-pushed thekvm branch 2 times, most recently from52d9f6c tod6c54b3Compare

December 11, 2025 17:07

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Thank you@seungukshin, looks good to me now.

One ask: could you rebase so that we get rid of the CI netlify errors?`

/assign@fmuyassarov @ArangoGutierrez

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[APPROVALNOTIFIER] This PR isAPPROVED

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source/kernel: Add kvm availability

e7cbed9

This commit adds a feature to check kvm availability.Signed-off-by: Seunguk Shin <seunguk.shin@arm.com>Reviewed-by: Nick Connolly <nick.connolly@arm.com>

seungukshin force-pushed thekvm branch fromd754a3d toe7cbed9Compare

December 12, 2025 14:48

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