On 09/06/2017 07:30, Wanpeng Li wrote: > 2017-06-08 19:52 GMT+08:00 Paolo Bonzini <pbonzini@xxxxxxxxxx>: >> >> 3) add an async_page_fault member to vcpu->arch.exception > > Do you think we should also add an async_page_fault field to > x86_exception, then pass down to kvm_inject_page_fault() through > x86_exception? Maybe we should modify > kvm_queue_exception_e/kvm_multiple_exception etc to add an function > parameter for async_page_fault. I don't know. :) I cannot say without looking closer or basically doing all the work. Do whatever looks best to you! Paolo