mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2025-01-30 16:35:24 +00:00
66bfc7cc61
We are about to add 6 new values to fetch. This will put us over the current limit of 16 (we're at 13 now). Once there are more than 16 parameters, this will affect existing clients that attempt to fetch blockiotune config values for the domain from the remote host since the server side has no mechanism to determine whether the capability for the emulator exists and thus would attempt to return all known values from the persistentDef. If attempting to fetch the blockiotune values from a running domain, the code will check the emulator capabilities and set maxparams (in qemuDomainGetBlockIoTune) appropriately. On the client side of the remote connection, it uses this constant in xdr_remote_domain_get_block_io_tune_ret and virTypedParamsDeserialize calls, so if a remote server returns more than 16 parameters, then the client will fail with "Unable to decode message payload". Signed-off-by: John Ferlan <jferlan@redhat.com>