Marc Zyngier <maz@xxxxxxxxxx> writes: > On 2020-08-04 15:44, Alex Bennée wrote: >> Marc Zyngier <maz@xxxxxxxxxx> writes: >> >>> On 2020-08-04 13:44, Alex Bennée wrote: >>>> The VIRTIO_PCI support is an idealised PCI bus, we don't need a bunch >>>> of bloat for real world hardware for a VirtIO guest. >>> >>> Who says this guest will only have virtio devices? >> >> This is true - although what is the point of kvm_guest.config? We >> certainly turn on a whole bunch of virt optimised pathways with >> PARAVIRT >> and HYPERVISOR_GUEST along with the rest of VirtIO. > > Most of which actually qualifies as bloat itself as far as KVM/arm64 > is concerned... So here is the question - does the kernel care about having a blessed config for a minimal viable guest? They are certainly used in the cloud but I understand the kernel is trying to get away from having a zoo of configs. What is the actual point of kvm_guest.config? Just an easy enabling for developers? > > M. -- Alex Bennée
