On Thu, Mar 05, 2020 at 03:51:17PM +0100, Paolo Bonzini wrote: > On 27/12/19 03:11, Yang Weijiang wrote: > > + u64 (*supported_xss)(void); > > I don't think the new callback is needed. Anyway I'm rewriting this > patch on top of the new CPUID feature and will post it shortly. > > Paolo Yes, it's not necessary. I've removed this in the internal version, a global variable like that in Sean's patch can serve the functions. You may go ahead with the new patch, thanks for review!