Re: [libvirt PATCH 0/2] improve audio device compat handling on migration

Avoid being over-eager in stripping <audio> elements. This still isn't ideal, because if a user happened to provide an audio config that *exactly* matches the libvirt historical default we'll still strip it. Thinking that maybe libvirt should advertize feature flags in te migration cookies. eg if the QEMU driver on the target host reports "explicit-audiodev", then te source host knows it doesn't need to strip it out to migrate to this host. If it doesn't report it, then it knows it must be an older libvirt version pre-dating audiodev. Daniel P. Berrangé (2): conf: add helper for comparing virDomainAudioDef objects qemu: don't strip audio elements with user config present src/conf/domain_conf.c | 144 +++++++++++++++++++++++++++++++++++++++ src/conf/domain_conf.h | 3 + src/libvirt_private.syms | 1 + src/qemu/qemu_domain.c | 72 +++++++++++--------- 4 files changed, 188 insertions(+), 32 deletions(-)