Re: [PATCH v1 25/29] cxl/amd: Enable Zen5 address translation using ACPI PRMT

[Gregory Price]

On Tue, Jan 07, 2025 at 03:10:11PM +0100, Robert Richter wrote:
> Add AMD platform specific Zen5 support for address translation.
> 
> Zen5 systems may be configured to use 'Normalized addresses'. Then,
> CXL endpoints use their own physical address space and Host Physical
> Addresses (HPAs) need address translation from the endpoint to its CXL
> host bridge. The HPA of a CXL host bridge is equivalent to the System
> Physical Address (SPA).
> 

Just adding the note that I've tested this patch set for HPA==SPA and
found it causes no regressions in my setup.

Still working on testing the normalized address mode due to a few BIOS
quirks I'm running up against.

~Gregory