Re: [PATCH 1/3] i915/gvt: seperate tracked MMIO table from handlers.c

hch
2021-11-09T10:58:50Z

On Tue, Nov 09, 2021 at 10:51:27AM +0000, Wang, Zhi A wrote:
> Can you elaborate more about this? We need the hash query from the table
> ASAP when the hypervisor trapped a mmio access. It's a critical path and
> we tried different data structure in the kernel and the hash table gives
> the best performance.

Ok, I misunderstood the hashtable.h interface. hash_for_each_possible
actually does a hash lookup instead of an interation despite the rather
misleading name.