On Tue, Jan 16, 2024, bugzilla-daemon@xxxxxxxxxx wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=218259 > > --- Comment #9 from Joern Heissler (kernelbugs2012@xxxxxxxxxxxxxxxxx) --- > (In reply to Sean Christopherson from comment #5) > > On Thu, Dec 14, 2023, bugzilla-daemon@xxxxxxxxxx wrote: > > > While the [tdp_mmu] module param is writable, it's effectively snapshotted by > > each VM during creation, i.e. toggling it won't affect running VMs. > > How can I see which MMU a running VM is using? You can't, which in hindsight was a rather stupid thing for us to not make visible somewhere. As of v6.3, the module param is read-only, i.e. it's either enable or disabled for all VMs, so sadly it's unlikely that older kernels will see any kind of "fix".
