Re: [PATCH v6 02/14] Documentation/x86: Secure Launch kernel documentation

From: Matthew Garrett
Date: Fri May 12 2023 - 07:04:37 EST


On Thu, May 04, 2023 at 02:50:11PM +0000, Ross Philipson wrote:
> +Secure Launch does not interoperate with KASLR. If possible, the MLE should be
> +built with KASLR disabled::

Why does Secure Launch not interoperate with KASLR?

Re: IOMMUs

> +It is recommended that no other command line options should be set to override
> +the defaults above.

What happens if they are? Does doing so change the security posture of
the system? If so, will the measurements be different in a way that
demonstrates the system is in an insecure state?