On Tue, Feb 11, 2020 at 03:50:08PM +0100, Peter Zijlstra wrote: > Oh gawd; so instead of improving the whole NMI situation, AMD went and > made it worse still ?!? Well, depends on how you want to see it. Under SEV-ES an IRET will not re-open the NMI window, but the guest has to tell the hypervisor explicitly when it is ready to receive new NMIs via the NMI_COMPLETE message. NMIs stay blocked even when an exception happens in the handler, so this could also be seen as a (slight) improvement. Regards, Joerg _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
