Re: [RFC PATCH 0/2] KVM: x86: Relay a nested Hyper-V root's vmbus posts to L0

[Sean Christopherson]

On Wed, Jun 17, 2026, Robert Nowotny wrote:
> This RFC asks for direction on a small KVM/x86 addition before adding a
> selftest and an SVM counterpart. It lets a nested Hyper-V root partition's
> vmbus come up when the L1 hypervisor runs under KVM with a userspace VMM that
> owns the host vmbus endpoint.
> 
> Patch 1 renames nested_evmcs_l2_tlb_flush_enabled() to
> nested_evmcs_l2_direct_hypercall_enabled(), since the predicate is really
> "L1
> granted this L2 the eVMCS direct-hypercall facility" and a second caller now
> shares it. No functional change.
> 
> Patch 2 adds the relay.

I didn't get any patches.  Lore doesn't have them either.