[v1][KVM][PATCH 1/1] kvm:ppc:booehv: direct ISI exception to Guest

[Scott Wood]

On 05/10/2013 12:57:33 PM, Alexander Graf wrote:
> Could you guys please collect performance data during the next weeks  
> on both guest-directed ISIs as well as VF MMIOs (preferably with  
> in-kernel MMIO), so that we can decide on the direction that's worth  
> going towards?

Collecting data on VF MMIO would require implementing it (or at least  
salvaging and fixing some old code), which is not a high priority at  
the moment.  If we do implement VF in the future we could always undo  
the direct ISI change, but it would still be nice to know if there's  
any real benefit in the first place.

FWIW, I doubt that the "more stress on HW TLB" will be significant.

-Scott