On Tue, 2024-08-27 at 15:19 +0300, Nikolay Borisov wrote: > > > > But beyond checking for supported features, there are also bug fixes that > > can > > affect usability. In the NO_RBP_MOD case we need a specific recent TDX > > module in > > order to remove the RBP workaround patches. > > My point was that if having the NO_RPB_MOD implied that the CPUID > 0x8000000 configuration capability is also there (not that there is a > direct connection between the too but it seems the TDX module isn't > being updated that often, I might be wrong of course!), there is no > point in having the workaround as NO_RPB_MOD is the minimum required > version. Having NO_RBP_MOD won't imply 0x80000008 configuration capability. We will have to check for a new feature bit for that. We should wait until it's finalized to add the code.