On 07/11/2019 20:08, Andriy Gapon wrote: > For CPUs that do get interrupted I see stack traces like: > cpustop_handler+0x28 ipi_nmi_handler+0x44 xen_cpustophard_handler+0x9 > intr_event_handle+0x8b intr_execute_handlers+0x58 xen_intr_handle_upcall+0x15a > xen_intr_upcall_u+0x96 ... > So, it looks like the NMI is delivered by the same mechanism as normal > interrupts. If a processor has interrupts disabled then the NMI would not get > delivered? > > Is there anything we could do to improve this?
I found this in Linux code: HYPERVISOR_vcpu_op(VCPUOP_send_nmi, xen_vcpu_nr(cpu), NULL); It's in xen_send_IPI_one(). I wonder if that's that or if there is more to this than meets the eye. Any help and advice is appreciated! -- Andriy Gapon _______________________________________________ freebsd-xen@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-xen To unsubscribe, send any mail to "freebsd-xen-unsubscr...@freebsd.org"