On Thu, Jun 08, 2023, Weijiang Yang wrote: > > On 6/6/2023 5:08 PM, Chao Gao wrote: > > On Thu, May 11, 2023 at 12:08:46AM -0400, Yang Weijiang wrote: > > > Add handling for Control Protection (#CP) exceptions(vector 21). > > > The new vector is introduced for Intel's Control-Flow Enforcement > > > Technology (CET) relevant violation cases. > > > > > > Although #CP belongs contributory exception class, but the actual > > > effect is conditional on CET being exposed to guest. If CET is not > > > available to guest, #CP falls back to non-contributory and doesn't > > > have an error code. > > This sounds weird. is this the hardware behavior? If yes, could you > > point us to where this behavior is documented? > > It's not SDM documented behavior. The #CP behavior needs to be documented. Please pester whoever you need to in order to make that happen.
