> Yes, for SGX this is functional feature because enclave entry points, > thread control structures (aka TCS's), reset FSBASE and GSBASE registers > to fixed (albeit user defined) values. And syscall's can be done only > outside of enclave. > > This is a required feature for fancier runtimes (such as Graphene).
Can you please explain a bit more? What do they need GS for? -Andi
