Jeremy Fitzhardinge wrote: > Zachary Amsden wrote: >> Or implement anything useful at all ... perhaps it might be useful to >> simply wrap them with an -ENOSYS in some cases. >> >> Rusty, Jeremy. Chris - any feedback on MSR support? > > I've looked at hpa's patch a bit, but I don't quite get what the point > is yet. Is it that rdmsr/wrmsr can use multiple random registers, so > its necessary to haul them all around? And that cpuid might use more > beyond the current eax-edx? > Yes, pretty much. There are enough evidence that you can't trust CPU architecture to stay sane. Inside Transmeta it was a constant battle, and we were a small company. > Xen will trap and emulate any rd/wrmsr instructions, so I don't think it > needs anything beyond native support. If that's true for all hypervisors, then that's obviously the easiest all around. -hpa _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
