Re: [PATCH v9 10/13] cxl: Enable AMD Zen5 address translation using ACPI PRMT

[Peter Zijlstra]

On Wed, Jan 14, 2026 at 06:08:59PM +0000, Jonathan Cameron wrote:

> Do we have a potential issue wrt to merging this as it stands and improving
> on it later?  i.e. Is this a blocking issue for this patch set?

Well, why do you *have* to use PRMT at all? And this is a serious
question; PRMT is basically injecting unaudited magic code into the
kernel, and that is a security risk.

Worse, in order to run this shit, we have to lower or disable various
security measures.

If I had my way, we would WARN and TAINT the kernel whenever such
garbage got used.