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

[Robert Richter]

On 10.01.25 17:48:35, Gregory Price wrote:
> 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.

Thanks for testing HPA==SPA.

-Robert

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