Hi all, I want to implement a virtual pci device in qemu and when needed inject a virtual interrupt into the running guest. However, possibly this action would fail and crash the guest VM especially when the workload in guest is heavy. Qemu report the following errors: >KVM: entry failed, hardware error 0x80000021 >If you're running a guest on an Intel machine without unrestricted mode> >support, the failure can be most likely due to the guest entering an invalid >state for Intel VT. For example, the guest maybe running in big real mode >which is not supported on less recent Intel processors. BTW, there are two function named kvm_set_irq and kvm_queue_interrupt which can be used to inject interrupt into guest, is it right? Thx a lot. -- Tianxiang Miao, Graduate Student, Institute of Parallel and Distributed Systems (IPADS), School of Software, Shanghai JiaoTong University -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html