>>> On Tue, Apr 10, 2007 at 12:11 PM, in message <[EMAIL PROTECTED]>, Avi Kivity <[EMAIL PROTECTED]> wrote: > > > It's more complex than that;
Isn't it always ;) > you need to program the hardware to exit on > a specific threshold level of tpr values (e.g. exit when tpr <= n). > Agreed, but don't forget the TPR/CR8 will always be an exposed interface of the LAPIC and therefore readily available for factoring into the algorithm. I just am not there yet. > It's a little sad to encode a complex condition (wait for nmi window > opening/wait for irq window opening/wait for irq window opening with tpr > <= n) in irqdevice, then decode it in the vcpu and program the hardware > accordingly. Agreed, but keep in mind that whatever we make the irqdevice do, it will have to do it in both the QEMU and in-kernel models if we want true dynamic ABI support for old userspace. I was trying to reduce the duplication of code in each model, but perhaps it's no more complex either way...TBD. Regards, -Greg ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
