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[redhat] virtio: support virtio-mem on x86-64 as tech-preview

David Hildenbrand requested to merge davidhildenbrand/kernel-ark:virtio-mem into os-build

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2014492

virtio-mem is a mechanism to resize VM memory at runtime by hotplugging and hotunplugging memory to be used as system RAM as triggered by the hypervisor: paravirtualized memory hot(un)plug.

More details about the project can be found at: https://virtio-mem.gitlab.io

Everything is in place to support virtio-mem on x86-64 as tech-preview in RHEL9. Let's enable it as tech-preview.

Note: I'm repurposing the RHEL9 bz which has a pending centos-stream-9 MR with the same RHEL-only changes.

Signed-off-by: David Hildenbrand david@redhat.com

Edited by David Hildenbrand

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