On Tue, Nov 21, 2017 at 12:48:26AM +0100, Thomas Gleixner wrote: > The launch enclave is part of the kernel, at least that's what the subject > line claims. So why and how would it do a syscall? The kernel has it's > internal crypto API. It's part of the kernel in the way as lets say code arch/x86/realmode is. It's hosted by kernel but it does not run in the same address space as the kernel. These constraints apply for enclaves: 1. They only run in ring-3. 2. They can only execute code inside their address range. /Jarkko
