Re: [PATCH for_v23 2/5] selftests/x86/sgx: Add check to verify exit handler stack alignment

[Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>]

On Thu, Oct 10, 2019 at 05:40:56PM -0700, Sean Christopherson wrote:
> Add an assembly trampoline to the basic exit handler to snapshot the
> pre-CALL %rsp in order to verify that the stack is 16-byte aligned as
> required by the x86_64 ABI.
> 
> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>

I'll rework the existing selftest commit in my tree to use the
"non-VDSO" (aka plain EENTER) call path. Please then provide me commits
for vDSO selftests. These commits will be their own commits in the patch
set. I'll move my selftest commit earlier in the patch set before the
vDSO commits.

Should be more than obvious why this makes sene, so I skip explaining
it but can provide rationale on demand basis.

I'll work this change out tomorrow.

/Jarkko