Re: [libvirt] [PATCH RFC v2 0/5] conf: add net device prefix capability

Hey, Back in the pre 1.3.0 release [0] we had a regression when migrating domains in libxl (introduced by the reverted commit d2e5538b1). The chosen solution to address this problem was to introduce a capability to be used by the virDomainNetDefFormat() and virDomainNetDefParseXML() routines. RFCv1 implemented this by "caching" netprefix in the domain definition[1]; as suggested in the review[1] v2 implements it by adding the virCapsPtr to the relevant APIs and also propagating the API change to all drivers. It is divided as follows: Patch 1: Adds prefix to capabilites Patch 2: Add prefix to NetDefParseXML Patch 3,4: API changes to include virCapsPtr and netprefix (New) Patch 5: set prefix on libxl (Acked) Having this series and the reverted commit applied, I can successfully migrate a domain without seeing the same interface name on both source and destination node with libxl. Note: I haven't been able to compile-test all drivers, specifically bhyve, vz and hyperv. Testing was made with libxl.