config: enable KVM in embedded kernel #125
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Enable CONFIG_KVM, CONFIG_KVM_INTEL, and CONFIG_KVM_AMD as built-in so the guest kernel can act as a KVM host. This is needed for nested virtualization: when libkrun exposes VMX/SVM CPUID bits to the guest (via krun_set_nested_virt), the guest kernel needs KVM support to create /dev/kvm and run VMs. Both Intel and AMD variants are enabled so the same kernel binary works on either vendor. Assisted-by: <anthropic/claude-opus-4.6> Signed-off-by: Dusty Mabe <dusty@dustymabe.com>
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Thanks for the contribution. The SEV commit can be removed, as I don't think we'd support that at the moment. |
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SEV nested virt can be removed.
Enable CONFIG_VIRTUALIZATION and CONFIG_KVM in the aarch64 kernel config for nested virtualization support. On ARM64 there are no separate vendor-specific KVM modules (unlike x86_64's KVM_INTEL and KVM_AMD). Assisted-by: <anthropic/claude-opus-4.6> Signed-off-by: Dusty Mabe <dusty@dustymabe.com>
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There are 3 commits here to enable nested virtualization support in the libkrun VM.
This is needed to leverage containers/libkrun#630 because if the kernel doesn't have these modules built in then
/dev/kvmdefinitely won't be there.These chanes were assisted by
anthropic/claude-opus-4.6.