On 10/27/26 03:56, Kevin Loughlin wrote: > In confidential computing guests requiring page state transitions, > unaccepted memory tracking operates at the EFI unaccepted memory unit > granularity (typically 2MB / order 9 on x86). Inflating the balloon > with 4KB pages would prevent unaccepting the backing 2MB unit. > > Inflate balloon pages at unaccepted_memory_order() when > virtballoon_cc_needs_state_transition() is true, while retaining > order-0 allocations for non-CoCo guests and CoCo guests that do not > use unaccepted memory transitions. When a higher-order balloon page > spans more 4KB balloon PFNs than VIRTIO_BALLOON_ARRAY_PFNS_MAX (256), > transmit its PFNs to the host in VIRTIO_BALLOON_ARRAY_PFNS_MAX chunks. > > Signed-off-by: Kevin Loughlin <[email protected]>
Sorry, not happening. There is no migration support for these (large) things, and there likely won't be any time soon. NAK -- Cheers, David
