On Fri, 14 Feb 2020 at 16:58, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: > > On 14/02/20 09:51, Wanpeng Li wrote: > > From: Wanpeng Li <wanpengli@xxxxxxxxxxx> > > > > Acquire kvm->srcu for the duration of mapping eVMCS to fix a bug where accessing > > hv assist page derefences ->memslots without holding ->srcu or ->slots_lock. > > Perhaps nested_sync_vmcs12_to_shadow should be moved to > prepare_guest_switch, where the SRCU is already taken. Will do. Wanpeng