On Thu, 4 Oct 2018 17:45:13 +0200 David Hildenbrand <david@xxxxxxxxxx> wrote: > On 04/10/2018 17:28, Michal Suchánek wrote: > > > > The state of the art is to determine what to do with hotplugged > > memory in userspace based on platform and virtualization type. > > Exactly. > > > > > Changing the default to depend on the driver that added the memory > > rather than platform type should solve the issue of VMs growing > > different types of memory device emulation. > > Yes, my original proposal (this patch) was to handle it in the kernel > for known types. But as we learned, there might be some use cases that > might still require to make a decision in user space. > > So providing the user space either with some type hint (auto-online > vs. standby) or the driver that added it (system vs. hyper-v ...) > would solve the issue. Is that not available in the udev event? Thanks Michal
